|Table of Contents|

Design and stability study of UHPC-CA fabricated dry masonry retaining wall(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2023年03期
Page:
83-91
Research Field:
建筑结构
Publishing date:

Info

Title:
Design and stability study of UHPC-CA fabricated dry masonry retaining wall
Author(s):
WANG Qing1; 2;  REN Xiaobin1; 2;  WANG Huafeng1; 2;  ZHOU Wanqing1; 2
(1. Hubei Key Laboratory of Disaster Prevention and Mitigation, China Three Gorges University, Yichang 443002, Hubei, China; 2. College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002, Hubei, China)
Keywords:
dry masonry retaining wall;  ecological block;  model test;  stability;  finite element simulation;  UHPC-CA
PACS:
TU375.6
DOI:
10.19815/j.jace.2021.11015
Abstract:
A new type of fabricated hollow block was designed, and the block was made of ultra-high performance concrete mixed with coarse aggregate(UHPC-CA). The strength and durability of the dry masonry wall were improved compared with the traditional cast-in-situ retaining wall. The blocks were connected by trapezoidal tenon and groove, and the size and angle of tenon and groove were determined based on the friction self-locking principle. The stability of the new block dry masonry retaining wall was studied by means of model test, finite element simulation and theoretical analysis. The results show that the tenon and groove of the designed block are connected reliably, and no local damage caused by falling off between tenon and groove occurs. The integrity of retaining wall is good, and the anti overturning safety and stability of the new block dry masonry retaining wall can reach the same effect as the integral cast-in-situ retaining wall. The new retaining wall can be stacked in many ways, which is suitable for embankment, shoulder and other protection works of standard truck driving roads at all levels. The double row retaining wall can ensure that the trapezoidal tenon will not be damaged by shear. In addition, green plants can be planted in the filling hole of the block, which has great ecological benefits.

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Last Update: 2023-05-20