H形双排桩结合大角度锚索在软土基坑中的应用  

APPLICATION OF H-TYPE DOUBLE ROW PILE COMBINED WITH LARGE ANGLE ANCHOR CABLE IN SOFT SOIL FOUNDATION PIT

作　　者：王宏民 吴梦龙 WANG Hong-min;WU Meng-long(Beijing Zhongyan Technology Company,100195,Beijing,China)

机构地区：[1]北京中岩大地科技股份有限公司,北京100195

出　　处：《建筑技术》2024年第6期664-667,共4页Architecture Technology

摘　　要：依托天津某实际案例,将单排灌注桩结合钢支撑方案优化为H形双排桩结合大角度可回收锚索方案。实际应用表明:通过采用H形双排桩结合大角度旋喷可回收锚索支护体系,可有效利用下层力学性质较好的土层,提供较大的锚索承载力;同时桩身内力更加合理,可降低造价;另外可避免支护结构出红线问题,便于土方和结构施工。Based on a practical case in Tianjin,the paper optimizes the scheme of single row pile combined with steel support to H-type double row pile combined with large angle recoverable anchor cable scheme.The practice shows that the H-type double row pile combined with large Angle rotary jet recoverable anchor cable support system can effectively utilize the lower layer with good mechanical properties and provide greater anchor cable bearing capacity.At the same time,the internal force of pile body is more reasonable,which can reduce the cost;In addition,it can avoid the red line problem of the supporting structure,facilitate the earthwork and structural construction.

关 键 词：H形双排桩 大角度旋喷可回收锚索 工期滞后 节省造价 设计优化 

分 类 号：TU443[建筑科学—岩土工程]