高强度预应力管桩在高承载力复合地基处理中的应用  

Application of High Strength Pre-stressed Pipe Pile in Treatment of Composite Foundation with High Bearing Capacity

作　　者：马中成[1] 丁海方[1] 李玉兰[1] 

机构地区：[1]中煤邯郸设计工程有限责任公司,河北邯郸056031

出　　处：《煤炭工程》2015年第3期38-40,共3页Coal Engineering

摘　　要：针对天然地基承载力较低,无法满足工程需求,且工程所在场地地下水位较高,采用常规桩型成桩困难的问题,提出了采用高强预应力管桩作为竖向增强体来进行复合地基处理的解决方案,并通过理论计算和现场载荷试验验证,实践结果表明该方案解决了特殊场地的复合地基处理问题,高强预应力管桩具有承载力提高幅度大,施工速度快等优点。Aiming at the problems of composite foundation treatment, such as inadequate natural foundation bearing capacity,high underground water level of engineering site,and the pile- forming difficulty with conventional pile,a composite foundation treatment scheme was proposed using high strength pre- stressed pipe pile as vertical reinforcement,which was tested in theoretical calculation and field loading test,and the results showed that,the proposed scheme solved the problem of composite foundation treatment in special site,the bearing capacity was significantly improved using high strength pre- stressed pipe pile,the construction speed was quickened.

关 键 词：复合地基 高承载力 高强度预应力管桩 竖向增强体 

分 类 号：TU753[建筑科学—建筑技术科学]