排桩复合土钉支护结构在深基坑工程中的应用  

Application of Pile Composite Soil Nailing Support in Deep Pit Slope

作　　者：陈占鹏 高伟[2] 李永辉[3] 周同和[2] 

机构地区：[1]上海绿地集团中原事业部,河南郑州450018 [2]郑州大学综合设计研究院有限公司,河南郑州450002 [3]郑州大学土木工程学院,河南郑州450001

出　　处：《建筑科学》2016年第9期114-118,130,共6页Building Science

摘　　要：排桩复合土钉支护结构是介于桩锚和土钉墙之间的一种支护结构,既有桩锚结构限制变形的能力,也有土钉墙支护的经济性。结合郑州某基坑工程,介绍排桩复合土钉支护技术概念,提出排桩复合土钉支护结构设计计算方法,并将计算值与现场实测结果进行比较。结果显示,实测基坑各项变形指标均小于计算值,土钉轴力与计算值基本吻合,技术成果可供同类基坑工程采用排桩复合土钉支护设计时参考。Row piles composite soil nailing structure is a supporting structure between anchor pile and soil nailing wall,it has the ability to limit the deformation of pile-anchor structure,simultaneously the economic structure of soil nail wall. Based on Zhengzhou excavation engineerings,the technical concept of presented pile composite soil nailing structure is introduced, the design and calculation methods of the structure are proposed, and the calculation results are compared with the test results. The results show that the measured pit deformations are smaller than the calculated value,and soil nailing axial force consistents with its calculated values,meanwhile the achievements can be used for reference in the similar excavation engineerings.

关 键 词：深基坑 排桩复合土钉 设计计算 现场实测 

分 类 号：TU472.34[建筑科学—结构工程]