Evaluation of Downdrag Loads on Bridge Pile Foundations in Inundated Collapsible Soils

Ashour, Mohamed; Abbas, Aser

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Evaluation of Downdrag Loads on Bridge Pile Foundations in Inundated Collapsible Soils

2022-06-01
By Ashour, Mohamed ; Abbas, Aser

File Language:

English

Details

Creators:

Ashour, Mohamed ; Abbas, Aser
Corporate Creators:

Alabama A&M University. College of Engineering, Technology & Physical Sciences
Corporate Contributors:

Washington State University. National Center for Transportation Infrastructure Durability & Life Extension (TriDurLE) UTC ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

2020-AA&M-01
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

Washington State University. National Center for Transportation Infrastructure Durability & Life Extension (TriDurLE) UTC
Abstract:

This report and the accompanying computer code (Software, Drag_Pile) describe the mobilized response analysis of piles under axial loads with the consideration of downdrag forces caused by the settlement of inundated collapsible soil layer(s). Pile foundations in collapsible soils may experience a sudden increase in the axial load (i.e., negative skin friction) due to the inundation of the surrounding soils, which may lead to significant reduction in the pile capacity and excessive pile settlement. A soil-pile model is developed to determine the downdrag force (negative skin friction) acting on the pile and pile settlement due to the inundation of the collapsible soil layer(s) in the vicinity of the pile foundations.
Format:

PDF
Funding:

69A3551947137
Download URL:

https://rosap.ntl.bts.gov/view/dot/68700/dot_68700_DS1.pdf
File Type:

[PDF - 2.78 MB]
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha-512:0db8725990d895ce81a91b3783b9e56844eb41c0c9805bc985d20eb7877ab5f8880c0a64beb0c50c7b31a89b17e35584e4b8ad15ff1f415ff75a91b9fc0de421

File Language:

English

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