Upcoming Events

 

  • Online Workshop: Construction of Drilled Shafts and Integrity Testing

    Online
    Virtual Event

    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 […]

  • Online Workshop: Soil Nail Walls – Design and Construction

    Online

    This workshop on soil nail walls 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).

  • Online Workshop: Mechanically Stabilized Earth (MSE) Walls – Limit State Based Design Principles

    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 […]

  • Online Workshop – Serviceability Effects of Foundation Movements and Deterioration on Bridge and Approach Structures

    Online

    Foundations 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.

  • Online Workshop: Drilled Shafts in Soil and Rock – Geotechnical Design Aspects

    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 […]

  • Online Workshop on Mechanically Stabilized Earth (MSE) Walls – Understanding Fill Properties and Good Practices for Details

    Online

    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 […]

  • Online Workshop on Embankments and Their Interaction with Structures and Subsurface Utilities

    Online

    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.

  • Online Workshop: Soil Nail Walls – Design and Construction

    Online

    This workshop on soil nail walls 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).

  • Online Workshop on Compaction of Soils and Engineering Properties of Compacted Soils

    Online

    This 2-day workshop will discuss compaction of soils and engineering properties of compacted soils. Using 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.