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X-WR-CALDESC:Events for NCS GeoResources, LLC
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BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20260615T083000
DTEND;TZID=America/Phoenix:20260615T133000
DTSTAMP:20260417T014146
CREATED:20260106T215114Z
LAST-MODIFIED:20260106T215114Z
UID:10000062-1781512200-1781530200@ncsgeoresources.com
SUMMARY:Online Workshop: Construction of Drilled Shafts and Integrity Testing
DESCRIPTION:Drilled shafts are often a technically sound and cost-effective foundation choice where a deep foundation solution is appropriate based on-site conditions\, applied loads\, and performance requirements. To avoid adverse performance issues\, design of drilled shafts must be performed based on consideration of site-specific geologic conditions and construction methods. There are three basic methods for construction of drilled shafts.  These are (a) dry method\, (b) wet method and (c) casing method.  Each of these methods will be discussed in this workshop with emphasis on the wet (slurry) construction method. The pros and cons of mineral (bentonite) and polymer slurries will be discussed.  Guidance and opinions on slurry management and shaft bottom cleaning processes will also be presented.  Slurry construction method will be contrasted with dry and cased construction methods.  Placement of reinforcing cage and concrete will be discussed. Development of potential anomalies and integrity testing methods such as Crosshole Sonic Logging (CSL)\, Gamma Density Logging (GDL)\, and Thermal Integrity Profiling (TIP) will be discussed. Typical specification criteria for the construction methods and integrity testing will also be presented. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand: (a) the construction procedures for drilled shafts\, and (b) the importance of constructability considerations in design of drilled shafts. The workshop will help you assimilate these crucial considerations through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the various construction procedures which would help you avoid costly design and construction errors in real-world projects. \n  \nSession 1 \n\nIntroductions\nGeneral terminology for drilled shafts\nTypical structural details\nOverview of construction methods\nDry shaft construction\nCased shaft construction\nWet shaft construction\nMineral and polymer slurries\nSlurry management\nShaft excavation and cleaning\nReview of Session 1\nInteractive Question and Answer (Q&A) session\n\nSession 2 \n\nRoadmap for Session\nReinforcing cage\nConcrete operations (free-fall\, gravity tremie\, pumped tremie\, etc.\nTolerances and checklists\nIntegrity testing – Crosshole Sonic Logging (CSL)\nIntegrity testing – Gamma Density Logging (GDL)\nIntegrity testing – Thermal Integrity Profiling (TIP)\nEffect of anomalies on performance of drilled shafts\nClosure and references\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-construction-of-drilled-shafts-and-integrity-testing-2/
LOCATION:Online
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20260810T083000
DTEND;TZID=America/Phoenix:20260810T133000
DTSTAMP:20260417T014146
CREATED:20260106T215403Z
LAST-MODIFIED:20260412T215607Z
UID:10000063-1786350600-1786368600@ncsgeoresources.com
SUMMARY:Online Workshop: Soil Nail Walls - Design and Construction
DESCRIPTION:Soil nailing technology is versatile and has been widely used worldwide over the last 3 decades for temporary and permanent excavation support. The design and performance of soil nail walls are intricately linked with their construction procedures.  To avoid adverse performance issues\, design and construction processes for a soil nail wall must be tailored to specific geometry and the environment (conditions) expected over its specified lifetime. This workshop will help gain a better understanding of the design and construction procedures using concepts of limit states that will be indexed to the latest guidelines based on the Load and Resistance Factor Design (LRFD) methodology of the American Association of State Highway Officials (AASHTO) and Federal Highway Administration (FHWA). The contrast between LRFD and the Allowable stress design (ASD) methodologies will also be included. Design and construction (including field testing) aspects of Solid Bar Soil Nails (SBSNs) and Hollow Bar Soil Nails (HBSNs) will be discussed. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand soil nail walls’ design and construction aspects. You will learn newer design approaches based on the LRFD platform\, which is the basis for guidelines for soil nail walls by the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA). The workshop will help you assimilate the design and construction aspects through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the newer design principles\, which will help you avoid costly design errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nTerminology\, construction steps\, applications\, and explorations\nLimit states\, load factors\, and resistance factors\nService limit state (wall movements)\nStrength and Extreme Event limit states\nLimit Equilibrium (LE) analysis software tools\nCorrosion Considerations\nFacing (shotcrete)\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn for classwork and break\n\nSession 2 of 2 \n\nRoadmap for Session 2\nReview of classwork assignments\nInformation for plans and specifications\nNail types and construction processes\nGrout and grouting\nNail testing and nail acceptance criteria\nClosure and References\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session
URL:https://ncsgeoresources.com/event/online-workshop-soil-nail-walls-design-and-construction-2/
LOCATION:Online
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20261013T083000
DTEND;TZID=America/Phoenix:20261013T133000
DTSTAMP:20260417T014146
CREATED:20260106T215732Z
LAST-MODIFIED:20260412T215540Z
UID:10000064-1791880200-1791898200@ncsgeoresources.com
SUMMARY:Online Workshop: Spread Footings on Soil and Rock - Geotechnical Design Aspects
DESCRIPTION:Spread footings are often under-utilized in comparison to the costlier deep foundation systems. This workshop will include discussions about spread footings on soil and rock. The workshop will discuss the development of the bearing resistance chart that permits consideration of several limit states (settlement\, limiting eccentricity\, and bearing resistance) in one convenient format. Other limit states such as sliding will also be discussed. The presentation will be indexed to the latest (2020) version of the Bridge Design Specifications (BDS) based on the  Load and Resistance Factor Design (LRFD) platform of the American Association of State Highway and Transportation Officials which is a key component of Federal Highway Administration (FHWA) guidelines for spread footings. The 2020 version of AASHTO LRFD BDS includes new information on analysis of spread footings such as the construction-point concept and implementation of the SE load factor which accounts for the uncertainty in prediction of settlements. Information on Protection Index concept from AASHTO’s latest (2020) Guide Specification for Service life design will also be presented. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand: (a) the analysis for spread footings on soil and rock\, and (b) the latest AASHTO LRFD guidelines for spread footings including the construction-point concept and the SE load factor. The workshop will help you assimilate these crucial considerations through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the various design procedures which would help you avoid costly design errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) and/or a reflection (e.g.\, reading) assignment. \nSESSION 1 \n\nIntroductions\nTerminology\, pressure distributions\, and limit states\nSliding stability\nLimiting eccentricity (overturning) stability\nBearing stability\nOverall (global) stability)\nSettlement\nBearing resistance and settlement chart\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn\n\nSESSION 2 \n\nReview of classwork assignments\nExample: Sizing a footing using a bearing resistance chart\nConstruction-point approach\nReliability of estimated settlements and the SE load factor\nDifferential settlement: Sf-0 and NPEC approaches\nDefinition of rock and rock mass\nExample: Sizing a footing on rock\nConsiderations for extreme events\nMaterial Deterioration: AASHTO Guide Specification\nClosure and references\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn\n\n 
URL:https://ncsgeoresources.com/event/online-workshop-spread-footings-on-soil-and-rock-geotechnical-design-aspects-2/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20261214T093000
DTEND;TZID=America/Phoenix:20261214T143000
DTSTAMP:20260417T014146
CREATED:20260106T220457Z
LAST-MODIFIED:20260412T215441Z
UID:10000066-1797240600-1797258600@ncsgeoresources.com
SUMMARY:Online Workshop: Mechanically Stabilized Earth (MSE) Walls – Limit State Based Design Principles
DESCRIPTION:Mechanically Stabilized Earth (MSE) walls are used extensively for grade-separation fill structures in many applications\, e.g.\, highways\, railways\, marine\, commercial\, etc. To avoid adverse performance issues\, design processes for an MSE wall must be tailored to specific geometry and the environment (conditions) expected over its specified lifetime. This workshop is geared towards development of a better understanding of design procedures using principles of limit states to ensure safe and serviceable MSE wall structures over specified lifetimes. More specifically\, this workshop is based on the Load and Resistance Factor Design (LRFD) methodology that is a North American version of the broader Limit State Design (LSD) approach. The design principles will be explained using wall geometries with level and sloped backfill configurations. The topic of complex geometries will be introduced. The presentation ends with a brief introduction to the design philosophy for the new MSE-LASR technology that permits consideration of Local Available Sustainable Resources (LASR)\, i.e.\, non-select or marginal fills. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand the design principles for MSE walls. You will learn newer design approaches based on the LRFD platform that is the basis for documents for MSE walls by the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA). The workshop will help you assimilate the design principles through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the newer design principles which would help you avoid costly design errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nTerminology and forces for MSE Walls\nLimit states and resistance factors\nApplicable loads and load factors\nConsideration of surcharges\nExternal stability (Strength and Service)\nInteractions within the MSE mass\nInteractive Question and Answer (Q&A) session\nAssignment of Classwork\nAdjourn for Classwork and Break\n\nSession 2 of 2 \n\nInternal stability (Strength)\nExtreme Event limit states (scour\, seismic\, and vehicle impact)\nIntroduction to complex MSE geometries\nIntroduction to the design philosophy for MSE-LASR technology\nReferences\nReview of  full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-mechanically-stabilized-earth-mse-walls-limit-state-based-design-principles-2/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20270222T093000
DTEND;TZID=America/Phoenix:20270222T143000
DTSTAMP:20260417T014146
CREATED:20260412T213945Z
LAST-MODIFIED:20260412T215418Z
UID:10000072-1803288600-1803306600@ncsgeoresources.com
SUMMARY:Online Workshop - Serviceability Effects of Foundation Movements and Deterioration on Bridge and Approach Structures
DESCRIPTION:Purpose and Background \nFoundations for bridges and approach structures should be designed so that their movements will not damage the bridge superstructure and associated structures such as abutments and approach slabs. Various aspects of movements that should be considered in the design of bridges include (a) the effect of uneven (differential) settlement between various support elements\, (b) the rotation and horizontal movements of the foundation system affecting movements at the bridge-seat level; (c) movements due to material deterioration; and (d) serviceability problems near a bridge abutment and approaches. The presentation will be based on latest (2020) version of the Bridge Design Specifications (BDS) and the Load and Resistance Factor Design (LRFD) platform of the American Association of State Highway and Transportation Officials which is a key component of Federal Highway Administration (FHWA) guidelines for this topic. Information on Extended Service Life (ESL) and Protection Index (PI) concepts from AASHTO’s latest (2020) Guide Specification for Service life design will also be presented. \nBenefits and Learning Outcomes \nUpon completion of this course\, you will be able to: \n\nRecognize the interaction between foundations and bridge structures.\nExplain the modes of foundation movements.\nComprehend the construction-point approach.\nDiscuss the effect of foundation movements on bridge superstructures.\nExplain the effect of movement of approach structures on abutments.\nIdentify and understand the tolerable movement criteria.\nComprehend the SE load factor and its application.\nIdentify the various provisions related to foundation movements of the AASHTO LRFD Bridge Design Specifications\nExplain the new AASHTO Guide Specification for Service Life Design.\nFoster a better understanding of the serviceability effects of foundation movements by structural and geotechnical specialists involved in bridge designs.\nRecognize potential problems for bridge structures related to foundation movements.\nExplain the need to have enhanced understanding of the interaction between bridge superstructure and foundations.\nExamine the possibilities and benefits of improved communications between geotechnical and structural specialists for bridge foundation design\n\nAssessment of Learning Outcomes \nStudents’ achievement of the learning outcomes will be assessed via a short post-assessment (true-false\, multiple choice and fill in the blank questions). \nWho Should Attend? \nGeotechnical specialists\, structural specialists\, bridge designers \nOutline \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand: (a) the types of foundation movements and the uncertainties associated with them\, (b) the construction-point concept and the SE load factor\, and (c) the effects of foundation movements on bridge superstructure and appurtenant structures. The workshop will help you assimilate these crucial considerations through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the various design procedures which would help you avoid costly design errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nTypical components and terminology for bridge structures\nTypes of bridge foundations and abutments\nModes of foundation movements\nEffect of foundation movements on bridge superstructures\nEffect of movements of approach structures on abutments\nTolerable values of movements\nConstruction-point approach\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn for classwork\n\nSession 2 of 2 \n\nRoadmap for Session 2\nReview of homework assignments and recap of Session 1\nAASHTO LRFD Articles relevant to foundation movements\nThe SE load factor\nExample Problem: Application of the SE Load Factor\nDifferential settlement: Sf-0 and NPEC Approaches\nExample: Incorporation of Foundation Movements in Bridge Design\nMaterial Deterioration: AASHTO Guide Specification for Service Life Design\nReferences\nClosure\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-serviceability-effects-of-foundation-movements-and-deterioration-on-bridge-and-approach-structures-2/
LOCATION:Online
CATEGORIES:Online Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20270428T083000
DTEND;TZID=America/Phoenix:20270428T133000
DTSTAMP:20260417T014146
CREATED:20260412T213647Z
LAST-MODIFIED:20260412T215347Z
UID:10000071-1808901000-1808919000@ncsgeoresources.com
SUMMARY:Online Workshop: Drilled Shafts in Soil and Rock - Geotechnical Design Aspects
DESCRIPTION:Drilled shaft foundations in soils and rocks are often a technically sound and cost-effective choice where a deep foundation solution is appropriate based on site conditions\, applied loads\, project schedule\, and performance requirements. When soils are of relatively poor quality and the structure loads are relatively large the shafts are often drilled through the poor soils into underlying rock mass if present. These shafts could be founded or seated on top of the rock mass\, or they could be drilled into the rock mass to form a rock socket. There are a number of different methods to design shafts in soils and rocks. The thrust of the discussions in this workshop is to establish a good understanding of the geotechnical design procedures for drilled shafts in soils and rocks. Construction techniques can have a significant effect on mobilized axial and lateral resistances and therefore brief information on effect of construction on drilled shafts will also be included. The workshop will be indexed to the latest (2020) version of the Bridge Design Specifications (BDS) based on the  Load and Resistance Factor Design (LRFD) platform of the American Association of State Highway and Transportation Officials which is a key component of Federal Highway Administration (FHWA) guidelines for drilled shafts. Information from AASHTO’s latest (2020) Guide Specification for Service life design will also be presented. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand the geotechnical design procedures for drilled shafts in soils and rocks using the concepts of LRFD. The workshop will help you assimilate crucial considerations for design of drilled shafts in soils and rocks through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the various geotechnical design procedures which would help you avoid costly design errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) and/or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nGeneral terminology for design of drilled shafts\nFailure modes and limit states\nResistance and resistance factors\nEvaluation of geotechnical axial resistance using chart approach\nConcepts for evaluating lateral response\nExtreme events\nDesign aspects for drilled shafts in ephemeral waterways\nTypical structural details\nBrief introduction to construction techniques for shafts in soils\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn for classwork and break\n\nSession 2 of 2 \n\nRoadmap for Session 2\nReview of classwork assignments\nIntroduction and definition of variables for rock sockets\nDefinition of rock and site characterization\nAxial resistance in rocks\nLateral resistance in rocks\nBrief introduction to construction techniques for rock sockets\nMaterial Deterioration: AASHTO Guide Specification Provisions\nClosure and references\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-drilled-shafts-in-soil-and-rock-geotechnical-design-aspects-2/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20270616T083000
DTEND;TZID=America/Phoenix:20270616T133000
DTSTAMP:20260417T014146
CREATED:20260412T213841Z
LAST-MODIFIED:20260412T215320Z
UID:10000070-1813134600-1813152600@ncsgeoresources.com
SUMMARY:Online Workshop on Mechanically Stabilized Earth (MSE) Walls – Understanding Fill Properties and Good Practices for Details
DESCRIPTION:Mechanically Stabilized Earth (MSE) walls are used extensively for grade-separation fill structures in many applications\, e.g.\, highways\, railways\, marine\, commercial\, etc. To avoid adverse performance issues\, and to ensure safe and serviceable MSE walls\, the fills and component details must be tailored to specific geometry and the environment (conditions) expected over its specified lifetime. To help comprehend these crucial considerations for successful implementation of MSE wall projects\, the thrust of the discussions in this workshop is to: (a) establish a baseline for understanding the design and construction considerations associated with the use of geomaterials for MSE wall fills\, and (b) emphasize attention to details of various components. The presentation will also include information on the new MSE-LASR technology that permits consideration of Local Available Sustainable Resources (LASR)\, i.e.\, non-select or marginal fills. The fill criteria by the National Concrete Masonry Association (NCMA) for segmental retaining walls will also be contrasted with MSE and MSE-LASR fill criteria. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand: (a) the fill properties and the underlying reasons for specification values for fills\, and (b) good practices for details. The workshop will help you assimilate these crucial considerations through active participation by frequent interactions throughout the workshop and real-time expert feedback. The interactions will facilitate a better understanding of the nuances of the fill properties and details which would help you avoid costly design and construction errors in real-world projects. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nTerminology and Basics of Compaction\nEffect of Unit Weight\, Voids\, and Fabric/Structure\nField Compaction Procedures\nRelative Density and Relative Compaction\nPractical Issues and SAV&S Field Control Method\nChoice of Field Compaction Control Method\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn for classwork and break\n\nSession 2 of 2 \n\nReview of classwork assignment\nRoadmap for Session 2\nShear Strength Characteristics of Compacted Soils\nVolume Change Characteristics of Compacted Soils\nPermeability Characteristics of Compacted Soils\nProof-rolling\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\n\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-on-mechanically-stabilized-earth-mse-walls-understanding-fill-properties-and-good-practices-for-details-2/
LOCATION:Online
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20270809T083000
DTEND;TZID=America/Phoenix:20270809T133000
DTSTAMP:20260417T014146
CREATED:20260412T214815Z
LAST-MODIFIED:20260412T220737Z
UID:10000073-1817800200-1817818200@ncsgeoresources.com
SUMMARY:Online Workshop on Embankments and Their Interaction with Structures and Subsurface Utilities
DESCRIPTION:Embankment fills are commonly used to meet the vertical grade requirements of a facility. Fills placed to accommodate the vertical profile as the roadway approaches a bridge are often referred to as “approach embankment fills” or “approach roadway fills.”  Embankment fills are also needed for many other infrastructure projects. Deformation and instability (local or global)\, both vertical and lateral\, of embankment fills are common problems. Consideration of the effects of such fills on structures founded on fills\, adjacent structures\, and subsurface utilities is important to avoid costly post-construction maintenance and potential legal issues; e.g.\, approach embankment fill deformation near a bridge structure leads to the ubiquitous “bump at the end of the bridge.”  This workshop discusses the mechanisms of internal and external deformation in embankment fills. Evaluation of subsurface stresses and slope stability aspects related to embankment fills is also discussed. Estimation of the ground compaction factor is discussed\, which is a key element for the determination of final earthwork quantities.  Good practices for ensuring the stability and performance of a bridge structure’s approach elements are discussed.  Practical design solutions to mitigate the embankment stability problems will be discussed. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help you understand: (a) design elements for embankment fills\, and (b) the effect of embankment fills on structures in fills\, adjacent structures\, and subsurface utilities. The workshop will help you assimilate these crucial considerations through active participation\, frequent interactions\, and real-time expert feedback. These interactions will help you better understand the nuances of design and construction procedures\, so you can avoid costly errors in real-world projects. Between the two live sessions\, attendees will work independently on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSESSION 1 \n\nIntroductions\nConfiguration of embankment fills\nGeneral concepts of stress and strain\nEstimating stress distribution in foundation geomaterials\nNarrow versus wide embankment fills\nConcepts of lateral squeeze\nSlope stability considerations\nEstimation of internal and external deformations\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignemnt of classwork\n\nSESSION 2 \n\nReview of classwork\nBridge abutment configurations (e.g.\, stub\, open\, integral\, MSE\, etc.)\nEffects of fills on bridge abutments\nEffects of fills on approach slabs\nEffects on subsurface utilities\nSelection of embankment fill materials\nCompaction procedures and induced stresses\nSuggestions for geotechnical investigations\nSuggestions for mitigation of embankment stability problems\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-on-embankments-and-their-interaction-with-structures-and-subsurface-utilities/
LOCATION:Online
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20271018T083000
DTEND;TZID=America/Phoenix:20271018T133000
DTSTAMP:20260417T014146
CREATED:20260412T213325Z
LAST-MODIFIED:20260412T220443Z
UID:10000068-1823848200-1823866200@ncsgeoresources.com
SUMMARY:Online Workshop: Soil Nail Walls - Design and Construction
DESCRIPTION:Soil nailing technology is versatile and has been widely used worldwide over the last 3 decades for temporary and permanent excavation support. The design and performance of soil nail walls are intricately linked with their construction procedures.  To avoid adverse performance issues\, design and construction processes for a soil nail wall must be tailored to specific geometry and the environment (conditions) expected over its specified lifetime. This workshop will help participants gain a better understanding of design and construction procedures using limit-state concepts\, aligned with the latest guidelines based on the Load and Resistance Factor Design (LRFD) methodology of the American Association of State Highway Officials (AASHTO) and the Federal Highway Administration (FHWA). The contrast between LRFD and Allowable Stress Design (ASD) methodologies will also be included. Design and construction (including field testing) aspects of Solid Bar Soil Nails (SBSNs) and Hollow Bar Soil Nails (HBSNs) will be discussed. \nUsing a collaborative\, interactive learning approach\, this virtual workshop will help you understand the design and construction of soil-nail walls. You will learn new design approaches based on the LRFD platform\, which underpins the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA) guidelines for soil nail walls. The workshop will help you assimilate the design and construction aspects through active participation by frequent interactions throughout the workshop and real-time expert feedback. These interactions will help you understand the nuances of the newer design principles and avoid costly design errors in real-world projects. Between the two live sessions\, attendees will work independently on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 of 2 \n\nIntroductions\nTerminology\, construction steps\, applications\, and explorations\nLimit states\, load factors\, and resistance factors\nService limit state (wall movements)\nStrength and Extreme Event limit states\nLimit Equilibrium (LE) analysis software tools\nCorrosion Considerations\nFacing (shotcrete)\nReview of Session 1\nInteractive Question and Answer (Q&A) session\nAssignment of classwork\nAdjourn for classwork and break\n\nSession 2 of 2 \n\nRoadmap for Session 2\nReview of classwork assignments\nInformation for plans and specifications\nNail types and construction processes\nGrout and grouting\nNail testing and nail acceptance criteria\nClosure and References\nReview of Session 2 and full workshop\nInteractive Question and Answer (Q&A) session
URL:https://ncsgeoresources.com/event/online-workshop-soil-nail-walls-design-and-construction-3/
LOCATION:Online
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Phoenix:20271213T093000
DTEND;TZID=America/Phoenix:20271213T143000
DTSTAMP:20260417T014146
CREATED:20260412T213541Z
LAST-MODIFIED:20260412T213541Z
UID:10000069-1828690200-1828708200@ncsgeoresources.com
SUMMARY:Online Workshop on Compaction of Soils and Engineering Properties of Compacted Soils
DESCRIPTION:In the construction of highway embankments\, earth dams\, retaining walls\, structural foundations\, and many other facilities\, loose soils must be compacted to increase their densities.  The principal objectives in compacting soil are normally to create fill of high strength and low compressibility\, and\, in the case of water-retaining fill\, of low permeability. The ultimate goal is to construct safe earth structures that can provide the desired serviceability over their design lifetimes and minimize long-term maintenance. This workshop discusses the conventional (e.g.\, Proctor) methods of compaction and alternative methods of compaction based on soil air voids and shear strength (SAV&S) principles. It evaluates applicability of compaction procedures for various soil landforms (e.g.\, residual vs transported) soils. It also discusses implications of laboratory tests on field compaction specifications and properties of compacted soils such as shear strength\, volume change\, and permeability. It evaluates the concept of cohesion component of shear strength in compacted soils. \nUsing a collaborative and interactive learning approach\, this virtual workshop will help learners understand challenges associated with specification and construction of safe and serviceable compacted soil structures that will also help long-term maintenance needs. Learn new concepts of soil compaction that builds upon your prior knowledge and through active participation you will integrate the new knowledge into your understanding. You will also generate new ideas through brainstorming and discussion and develop a better understanding of the practical methods and processes of soil compaction\, learn about real-world problems that your peers encounter on projects\, and solutions they have implemented\, and receive real-time expert feedback. In between the two live sessions\, attendees will independently work on an application (e.g.\, exercises) or a reflection (e.g.\, reading) assignment. \nSession 1 \n\nIntroductions\nTerminology and Basics of Compaction\nEffect of Unit Weight\, Voids\, and Fabric/Structure\nField Compaction Procedures\nRelative Density and Relative Compaction\nPractical Issues and SAV&S Field Control Method\nChoice of Field Compaction Control Method\n\nSession 2 \n\nReview of classwork assignment\nRoadmap for Day 2\nShear Strength Characteristics of Compacted Soils\nVolume Change Characteristics of Compacted Soils\nPermeability Characteristics of Compacted Soils\nProof-rolling\nReview of full workshop\nInteractive Question and Answer (Q&A) session\n\nAdjourn
URL:https://ncsgeoresources.com/event/online-workshop-on-compaction-of-soils-and-engineering-properties-of-compacted-soils-3/
LOCATION:Online
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