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超前疏排桩(柱)锚组合支护体系用于高速公路边坡或城市基坑工程,由超前疏排桩(柱)、钢筋网喷射混凝土面板与预应力锚索三部分组成,是一种新型的支挡结构,为探索其承载特性及变形机理,依托某城市大型深基坑工程的实时监测数据,对该支护体系承载机理及变形特性进行了探讨,通过数值分析,得到超前疏排桩锚支护体系的变形取决于桩的嵌岩深度、持力层岩体特性及其前侧岩土体宽度,研究结论为类似重要工程具有借鉴和指导意义。
Antecedent drainage pile (column) anchor combination support system is used for highway slope or urban foundation pit project, and is composed of three parts of advanced and unspool pile (column), steel mesh sprayed concrete panel and prestressed anchor cable Based on the real-time monitoring data of a large deep foundation pit project in a city, in order to explore the bearing characteristics and deformation mechanism of the new type of retaining structure, the bearing mechanism and deformation characteristics of the support system are discussed. By numerical analysis, The deformation of the pile-anchor supporting system depends on the socketed depth of the pile, the characteristics of the rock mass in the bearing layer and the width of the rock mass in front of the pile. The conclusion of the study is of reference and instructional significance for similar important projects.