预应力混凝土管桩施工质量控制  

Quality control on the construction of prestressed-concrete tube pipe

作　　者：彭荣国 Peng Rongguo(Hunan Hetian Engineering Project Management Co.,Ltd.,Changsha 410205,Hunan)

机构地区：[1]湖南和天工程项目管理有限公司,湖南长沙410205

出　　处：《工程建设》2020年第9期66-69,共4页Engineering Construction

摘　　要：通过采取试验桩获取贯入度以及工程桩施工前的桩长计算,在用插值法逐桩进行计算的基础上,设计了较为简便的作图法,探讨了试验桩施打过程中获取贯入度的步骤。在实际施工过程中,提出当桩长控制与贯入度控制要求下,双控目标无法实现时的处理依据和方法。某项目预应力混凝土管桩施工后的检测结果显示:单桩竖向抗压承载力特征值满足设计要求。通过预应力混凝土管桩施工的质量控制,避免了不合理配桩的发生,控制了施工成本。The test pile is adopted to obtain the penetration and the computational pile length before the construction of the engineering pile.Based on the pile-by-pile computation by the interpolation method,a relatively simple drawing method is designed,and the penetration steps during the construction of the test pile are obtained.During the process of actual construction,when both the pile length control and the penetration control are required,the treatment basis and method are proposed when the dual control goal cannot be achieved.After the construction of prestressed concrete tube pile of a project,the test results show that the characteristic value of vertical bearing capacity of single pile satisfies the design requirements.Based on the quality control of the construction of prestressed concrete tube pile,the occurrence of unreasonable pile matching is avoided and the cost for the construction is controlled.

关 键 词：预应力混凝土桩 试验桩 桩长计算 标高贯入度双控 

分 类 号：TU378.3[建筑科学—结构工程]