排桩锚杆联合支护在淤泥质黏土基坑中的应用  

Application of combined shoring both soldier piles and anchor rod in the silt clay foundation pit construction

作　　者：刘岸军[1] 屠忠尧 

机构地区：[1]杭州天元建筑设计研究院有限公司,杭州311201

出　　处：《建筑结构》2014年第1期88-91,共4页Building Structure

摘　　要：在分析基坑周边环境条件、工程地质条件的基础上,采用一种新型的球型浆囊袋注浆锚杆,选用排桩锚杆联合支护体系对某位于深厚淤泥质土层中的基坑进行支护。对这种新型的锚杆进行了抗拔力试验,对围护体进行了水平位移监测。试验和监测结果显示,采用球型浆囊袋注浆锚杆的排桩锚杆联合支护体系在深厚淤泥质基坑中的应用是可行,这种锚杆的作用效果是显著的,用其替代排桩内支撑体系中的内支撑,不但节省了工程造价还给土方开挖带来了很大的便利。Based on the analysis of the surroundings around the foundation pit and the engineering conditions, a new technology of slurry pocket anchor rod was employed. The combined shoring both soldier piles and slurry pocket anchor rod was used for this foundation pit construction in the silt clay, then put-out force test of the new anchor rod was conducted and the horizontal displacement of enclosure was monitored. Monitoring result shows the combined shoring both soldier piles and slurry pocket anchor rod in the silt clay foundation pit is practicable, using the slurry pocket anchor rod to inplace of the internal bracing structure in the soldier piles can reduce investment outlay and bring convenience for excavation of earth.

关 键 词：淤泥质黏土 锚杆 联合支护 荷载-位移曲线 

分 类 号：TU473[建筑科学—结构工程]