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Numerical Nonlinear Analysis of Soil Nailing Wall and Comparison With Codes
Author(s): 
Pages: 259-263
Year: Issue:  3
Journal: JOURNAL OF BEIJING UNIVERSITY OF TECHNOLOGY

Keyword:  土钉支护土钉轴力数值模拟;
Abstract: 为完善土钉支护设计方法,利用国际通用岩土工程分析软件(FLAC),对土钉墙在分步开挖下的变形和受力进行了分析,并与现行2种规程的轴力计算结果进行了对比,指出了现行规程的不足,认为土钉的轴力不仅与土钉所控土层的土压力有关,而且主要是由于分步开挖过程中边坡变形积累产生的土钉与土体之间相对位移趋势的增大和群体土压力共同作用的结果.建议适当加大第一排土钉的长度,加强面层与土钉的连接.
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