论深基坑工程影响土钉墙支护稳定性的因素及对策  

On the Factors Affecting the Stability of Soil Nailing Wall in Deep Foundation Pit Engineering and Its Countermeasures

作　　者：彭永强 Peng Yongqiang(Hunan Lugu Construction Engineering Co.,Ltd.,Changsha 410000,China)

机构地区：[1]湖南麓谷建设工程有限公司,湖南长沙410000

出　　处：《科学技术创新》2022年第11期133-136,共4页Scientific and Technological Innovation

摘　　要：根据实地监测数据对麓谷·山湖郡项目二期深基坑土钉墙支护稳定性进行试验分析,确定边坡结构的受力情况、变形趋势以及结构稳定性。试验选取土钉入射角、长度、间距作为试验变量,分析三个变量与深基坑工程边坡结构变形与稳定性之间的关系。试验结果显示,适当增加土钉长度以及横向间距都可以增加基坑边坡稳定性,有效减少边坡变形;土钉入射角在5°~20°时,入射角越大,边坡变形越大。According to the field monitoring data, the stability of soil nailing wall support of deep foundation pit of Lugu shanhujun project phase II is tested and analyzed to determine the stress condition, deformation trend and structural stability of slope structure. The incident angle, length and spacing of soil nails are selected as test variables to analyze the relationship between the three variables and the structural deformation and stability of deep foundation pit slope. The test results show that properly increasing the length and transverse spacing of soil nails can increase the stability of foundation pit slope and effectively reduce slope deformation;When the incident angle of soil nail is 5 °~ 20 °, the larger the incident angle is, the greater the slope deformation is.

关 键 词：公路 边坡 深基坑 土钉墙 稳定性分析 

分 类 号：U416.1[交通运输工程—道路与铁道工程]