包裹式加筋土挡墙的离心模型试验  

Centrifuge Modeling of the Geogrid-reinforced Soil Retaining Wall with Wrapped Face

作　　者：姜炯[1] 黄金[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《佳木斯大学学报（自然科学版）》2013年第1期22-24,30,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：为评价建造在软土地基上的包裹式加筋土挡墙稳定性,进行了自重加载条件下的离心模型试验,研究了地基土排水固结对挡墙变形的影响.试验结果表明:筋材为挡墙提供了有效的侧向约束,并能调整土体中的应力分布;挡墙施工完毕后,软土地基的固结会导致挡墙产生以沉降为主的长期变形,工后沉降约占总沉降的25%,设计加筋土挡墙时因考虑软土地基固结的影响.For evaluating the geogrid - reinforced soil retaining wall with wrapped face built on soft soil foundation, some centrifugal model tests were conducted to investigate the influence of the soil consolidation on the retaining wall. The results showed that the geogrids can provide the lateral force, which can change the stress distribution in the soil. After the construction of the retaining wall, the soil consolidation leads to about 25% of total settlement.

关 键 词：包裹式加筋土挡墙 离心模型试验 软土固结 变形 

分 类 号：TU411[建筑科学—岩土工程]