In-Situ Experimental Study of Closed-Diaphragm Wall Foundations for Cross-Sea Suspension Bridges

Bibliographic Details
Title: In-Situ Experimental Study of Closed-Diaphragm Wall Foundations for Cross-Sea Suspension Bridges
Authors: Wenshuai Li, Qiyu Tao, Chao Li, Xin Wang, Weiming Gong, Guoliang Dai
Source: Journal of Marine Science and Engineering, Vol 12, Iss 12, p 2304 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Naval architecture. Shipbuilding. Marine engineering
LCC:Oceanography
Subject Terms: suspension bridge, closed-diaphragm wall, field test, lateral load, Naval architecture. Shipbuilding. Marine engineering, VM1-989, Oceanography, GC1-1581
More Details: This study examines the in-situ lateral static load behavior of a closed-diaphragm wall foundation, aiming to better understand its load–displacement response, structural behavior, and soil interaction under horizontal loading. An in-situ static load test was conducted with a maximum applied load of 70 MN, revealing that the diaphragm wall initially exhibits a linear load–displacement response, which becomes increasingly nonlinear as the load increases. The horizontal displacement of the lateral walls is nearly identical to the overall displacement of the diaphragm wall, making it a reliable indicator of the wall’s load state, particularly when it is challenging to measure total displacement. The wall behaves as a rigid body with minimal relative displacement between sections, and overturning failure is identified as the primary failure mode. Earth pressure distribution varies around the wall: passive earth pressure is observed at the front edge, while active and passive pressures alternate at the rear edge. These findings provide valuable insights into the design of diaphragm wall foundations, emphasizing the importance of lateral displacements.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2077-1312
Relation: https://www.mdpi.com/2077-1312/12/12/2304; https://doaj.org/toc/2077-1312
DOI: 10.3390/jmse12122304
Access URL: https://doaj.org/article/04e2c3c258eb445fa259effd09640788
Accession Number: edsdoj.04e2c3c258eb445fa259effd09640788
Database: Directory of Open Access Journals
More Details
ISSN:20771312
DOI:10.3390/jmse12122304
Published in:Journal of Marine Science and Engineering
Language:English