真空井点降水联合加固软土地基的施工技术分析  

Construction Technique of Soft Ground Reinforcement Combined with Dewatering and Preloading for Vacuum Well Point

作　　者：王海飙[1] 杨东晖 杨海旭[1] 孙即超[3] 

机构地区：[1]东北林业大学,哈尔滨150040 [2]黑龙江东北煤炭矿山设备租赁公司 [3]中国矿业大学

出　　处：《东北林业大学学报》2007年第2期61-63,共3页Journal of Northeast Forestry University

基　　金：黑龙江省教育厅科学技术研究项目(11513021);东北林业大学校科研基金项目;东北林业大学土木工程学院科研基金项目

摘　　要：根据工程实际情况,应用真空井点降水联合加固软土地基的施工方法,通过施工沉降观测和理论分析,对真空井点降水联合预压加固软土地基的施工技术及加固有效深度、有效应力的变化问题进行了研究。验证了真空井点降水联合预压加固施工方法在寒区环境的适用性,分析了在该条件下,本施工方法的加固效果和沉降变化规律,为基础设计和工程施工提供参考依据。Based on the application of construction technique of improved soft ground reinforcement with dewatering and preloading for the vacuum well point in practical engineering, the effect of this technique, the effective reinforcement depth and the change of effective stress were studied through observing the construction settlement in practice and analysing from theory. The applicability of the technique was validated in cold area. The changing regularity of reinforcement effect and settlement were analysed by adopting this technique, which provides some references for the base design and engineering construction.

关 键 词：真空降水预压 有效应力 孔隙水压力 加固有效深度 

分 类 号：TU463[建筑科学—结构工程]