基于力传递法及增设土钉法的基坑围护桩侵限处理
摘要:为加强对围护桩侵限问题的补强处理,采用理论分析法对围护桩侵限原因及处理措施进行了分析总结,并对力传递法及增设土钉进行介绍。结果表明:基坑围护桩侵限主要原因分为人为因素以及地层因素;采用力传递及增设土钉的组合方法可使凿除桩与相邻桩在基坑临空面整体受力,同时土钉与基坑网喷砼面板一定程度上限制了因开挖引起的侧壁卸荷变形。某基坑实例证明了力传递法及增设土钉法的切实可行,可为类似工程提供经验参考。
Abstract:In order to strengthen the reinforcement of retaining piles, the reasons of invasion and the treatment measures of retaining piles are analyzed and summarized by theoretical analysis method, and the force transfer method and the addition soil nail are introduced. The results show that the main reasons of invasion of retaining pile in foundation pit are divided into human factors and stratum factors. Through the combination method of force transmission and addition soil-nailing, the chiseled pile and adjacent pile can bear the overall force on the free surface in foundation pit, in a certain extent, the soil nails and mesh shotcrete panel of foundation pit could limit the unloading deformation of the side wall caused by excavation. The force transmission method and the addition soil-nailing method are proved feasibility, which can provide experience reference for similar projects.
中文标题：
基于力传递法及增设土钉法的基坑围护桩侵限处理
Invasion Treatment of Retaining Pile in Foundation Pit Based on the Force Transmission and Addition Soil-nailing Method
作者：
常庆海,赵萌萌
Chang Qinghai,Zhao Mengmeng
作者简介:常庆海,男,1986年生,河北石家庄人,硕士研究生,工程师,主要从事地下工程安全风险咨询工作。E-mail:492738400@qq.com
通讯地址：
江苏省地质隧道与地下工程科技有限公司, 江苏南京 210041
GeologicalTunnelandUndergroundEngineeringTechnologyCo.,Ltd.ofJiangsuProvince,Nanjing210041,Jiangsu,China
中图分类号:TU753
doi:10.3969/j.issn.1007-2993.2020.06.011
出版物：岩土工程技术
收稿日期:2020-01-15
网络出版日期:2021-07-06
关键词:围护桩,侵限,处置,力传递法,土钉,监测数据
Key words:retaining pile,invasion limit,force transmission method,soil nail,monitoring data,
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