复合土钉在深基坑支护中的应用研究  

Application of composite soil nailing support for the deep excavation

作　　者：贾东远 谷延凤[2] 隋凤涛[3] 

机构地区：[1]秦皇岛市建筑设计院,河北秦皇岛066001 [2]河北农业大学城乡建设学院,河北保定071001 [3]河北科技师范学院城市建设学院,河北秦皇岛066000

出　　处：《河北农业大学学报》2011年第3期103-107,共5页Journal of Hebei Agricultural University

摘　　要：结合唐山市第三空间综合体深基坑工程,基于FLAC3D软件的弹塑性有限差分分析,对基坑坡顶水平位移实测数据与数值模拟结果进行了对比分析。研究表明:土钉和预应力锚索相结合的复合土钉支护方法,能够较好地控制基坑变形的发展。该工程的成功实施,对今后类似工程具有较大的借鉴价值。Through an elastic-plastic analysis of FLAC3D program based on the explicit difference method,and from the case of urban complex of the third space deep excavation project in Tangshan on composite soil nailing combined with general soil nail and prestressed anchor.Numerical simulation is carried out and the horizontal displacement on the top of pit foundation,with measured date is discussed.The analysis shows that the composite soil nailing can largely restrain the pit foundation deformation.The successful application provides useful reference to similar projects in future.

关 键 词：深基坑 复合土钉 预应力锚索 数值模拟 现场测试 水平位移 

分 类 号：TU476[建筑科学—结构工程]