桩锚结构体系在深基坑支护中应用研究  

Research on Application of Pile-anchor Structure System in Deep Foundation Pit Support

作　　者：张广乾 李向阳 张利芳 杨明 刘先成 ZHANG Guangqian;LI Xiangyang;ZHANG Lifang;YANG Ming;LIU Xiancheng(Shaanxi Corps,China Geological Exploration Center for Building Materials Industry;Xi'an Building Materials Geological Engineering Survey Institute Co.,Ltd.;Shaanxi Zhongxiang Foundation Engineering Co.,Ltd.)

机构地区：[1]中国建筑材料工业地质勘查中心陕西总队 [2]西安建材地质工程勘察院有限公司 [3]陕西中祥基础工程有限责任公司

出　　处：《广东建材》2024年第2期109-112,共4页Guangdong Building Materials

摘　　要：桩锚支护结构具有合理的受力形式,较大的支护刚度,节约施工空间等优点,在深基坑支护中被广泛应用,文中以定西市某基坑桩锚支护结构为依托,通过计算分析不同预应力锚索组合下,桩身最大内力与位移的影响,合理选取桩身及锚索参数,能有效降低桩身内力及桩顶位移,使护坡桩结构受力更合理,可取得更可靠经济的支护方案。Pile-anchor support structure has the advantages of reasonable force form,large support stiffness,saving construction space,etc.,which is widely used in deep foundation pit support.Based on the pile-anchor support structure of a foundation pit in Dingxi City,the paper calculates and analyzes the influence of the maximum internal force and displacement of the pile body under different prestressed anchor cable combinations,and rationally selects the parameters of the pile body and anchor cable.It can effectively reduce the internal force of the pile body and the displacement of the pile top,making the force of the pile structure more reasonable,and obtain a more reliable and economic support scheme.

关 键 词：桩锚支护体系 深基坑 预应力锚索 桩身内力 

分 类 号：TU753[建筑科学—建筑技术科学]