基于实测的基坑降水对周边土体承载能力的影响研究  

Effects of Foundation Pit Dewatering on Load-bearing Capacity of Soil Body around the Pit

作　　者：姜晨光[1] 路奎[2] 林长胜 石伟南[4] 巩亮生 

机构地区：[1]江南大学环境与土木工程学院,江苏无锡214122 [2]山东省国土测绘院,济南250013 [3]烟台建设集团钢结构有限公司,山东烟台264003 [4]山东省水利厅,济南250013 [5]山东海河流域水利管理局,济南250100

出　　处：《南水北调与水利科技》2011年第1期29-32,87,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金(79160173)

摘　　要：工程实践证明,基坑安全与基坑降水密切相关,为摸清基坑降水与基坑安全间的关联关系,进行了大量的原位测试工作,以大量的同步地下水位监测、承压板载荷试验、静力触探试验数据为基础,借助计算机,构建起了无截水措施情况下基坑降水后基坑周边地下水位变化和土体承载能力变化的经验数学模型。介绍了模型的构建过程和应用效果。It is proved that pit safety has a close relationship with foundation pit dewatering. In order to find out the relationship between foundation pit dewatering and load-bearing capacity of soil body around the pit,a vast amount of original position monitoring work has been engaged. Based on the groundwater level monitoring data, load tests by pressure bearing plate, and static cone penetration test, the empirical mathematic models of the variations of groundwater level and load bearing capacity of soil body around the pit were set up after foundation pit dewatering. The model construction process as well as application effects have been introduced in our paper.

关 键 词：基坑工程 基坑安全 基坑降水 土体承载力 地下水位 经验数学模型 

分 类 号：TV551.4[水利工程—水利水电工程] TU413[建筑科学—岩土工程]