某结构桩基础持力层优化设计  

Optimizing design on bearing layer of pile foundation of a structure

作　　者：石中明 SHI Zhongming(Fuzhou Planning&Design Research Institute Group Co.,Ltd.,Fuzhou 350108,Fujian,China)

机构地区：[1]福州市规划设计研究院集团有限公司,福建福州350108

出　　处：《工程建设》2024年第7期51-55,共5页Engineering Construction

摘　　要：桩基础的承载能力与桩周的土层及桩端下的持力层有很大关系,其中持力层的选用直接影响到桩的长度。选用合理的持力层对节约工程造价及减少环境影响具有一定意义。本文以某医院综合楼工程为例,对灌注桩在不同持力层下的承载能力及经济性进行分析比较。结果表明:灌注桩利用后注浆技术可以提高单桩承载能力,减少桩长,从而达到节约工程造价,减少碳排放的目的。本文成果可为类似工程提供一定的参考。The bearing capacity of pile foundation is closely related to the soil layer around the pile and the bearing layer under the pile end,and the selection on the bearing layer directly affects the length of the pile.The selection of a reasonable bearing layer is of certain significance to save the project cost and reduce the environmental impact.A hospital complex building project is taken as an example to analyze and compare the bearing capacity and economy of cast-in-place piles under different bearing layers.The results show that the post-grouting technology can improve the bearing capacity of a single pile and reduce the pile length,so as to save the project cost and reduce carbon emissions.The results can provide some reference for similar projects.

关 键 词：桩基持力层 优化设计 灌注桩 后注浆技术 卵石土层 碳排放 

分 类 号：TU473.12[建筑科学—结构工程]