超长大直径劲性复合桩在武汉二元结构地层的应用  

Application of Ultra Long and Large-diameter Strength Composite Piles in Wuhan′s Dual Structure Stratum

作　　者：王承敏 余宗源 程涛 WANG Chengmin;YU Zongyuan;CHENG Tao(Wuhan Linkedo Engineering Design Co.,Ltd.,Wuhan Hubei 430075;Xianning HTI Group Co.,Ltd.,Xianning Hubei 437000;School of Civil Engineering,Hubei Polytechnic University,Huangshi Hubei 435003)

机构地区：[1]武汉联动设计股份有限公司,湖北武汉430075 [2]咸宁高新投资集团有限公司,湖北咸宁437000 [3]湖北理工学院土木建筑工程学院,湖北黄石435003

出　　处：《湖北理工学院学报》2024年第3期56-60,共5页Journal of Hubei Polytechnic University

基　　金：湖北省优秀中青年科技创新团队项目(项目编号:T201823);湖北省自然科学基金面上项目(项目编号:2012FKC14201);湖北省教育厅重点项目(项目编号:D20134401);湖北理工学院重点项目(项目编号:13xjzO3A)。

摘　　要：以劲性复合桩在武汉二元结构地层地场某项目的首次应用为背景,分析了试桩结果,对比研究了预制管桩及钻孔灌注桩的技术经济性。结果表明,劲性复合桩的承载力较常规预制管桩有大幅提高,能够满足对于单桩高承载力的要求,相较于钻孔灌注桩能大幅度节省造价,具有较高的经济效益。劲性复合桩对于武汉地区二元结构地层具有良好的适用性,拓宽了常规直径管桩在武汉地区二元结构地层的应用场景,具备较高推广应用价值。Based on the first application of strength composite piles in a project of Wuhan dual structure stratum field,the results of the test piles were analyzed to compare the technical and economic performance of precast tubular piles and bored piles.The results show that the bearing capacity of the strength composite piles is greatly improved compared with conventional precast piles,which can meet the requirement of high bearing capacity of a single pile,and the cost can be greatly saved compared with the bored piles,which is of high economic benefit.The strength composite piles have good applicability to the binary structure stratum in Wuhan area,which broadens the application scenario of conventional diameter pipe piles in binary structure stratum in Wuhan area,and has high value of popularization and application.

关 键 词：劲性复合桩 水泥土搅拌桩 PHC管桩 二元结构地层 

分 类 号：TU473.1[建筑科学—结构工程]