多桩型复合地基在厚层软基加固中的应用  

The application of the composite foundation with multiple reinforcement of different materials or lengths in the reinforcement of thick layer soft foundation

作　　者：侯先雨 Hou Xianyu(Water Affairs Bureau of Wanzhi District,Wuhu City,Anhui Province,Wuhu 241100,China)

机构地区：[1]安徽省芜湖市湾沚区水务局,安徽芜湖241100

出　　处：《江淮水利科技》2023年第2期33-36,共4页Jianghuai Water Resources Science and Technology

摘　　要：为解决水利工程厚层软土地基处理的问题,以芜湖市湾沚区十三连圩咸保站工程为例,介绍了PHC管桩和双向水泥土搅拌桩两种长短桩组成的多桩型复合地基处理技术,通过对工程地质条件、地基承载力及工程造价等方面分析,结果表明:多桩型复合地基既能满足建筑物承载力要求,又能加快施工进度,缩短工期,能有效解决厚层软土地基沉降及水平变形控制问题。In order to solve the prob1em of thick soft soil foundation treatment in water conservancy projects,this paper took the Xianbao station project in Shisanlian Weir,Wanzhi District,Wuhu City as an examp1e,and introduced the composite foundation with mu1tiple reinforcement of different mate-rials or 1engths treatment technology consisting of PHC pipe piles and bidirectional deep mixing column.Through analysis of the engineering geological conditions,foundation bearing capacity,and engineering cost,the results showed that the composite foundation with mu1tip1e reinforcement of dif-ferent materials or 1engths could not only meet the bui1ding's bearing capacity requirements but also accelerated construction progress,shorten construction period,and effectively so1ved the problems of sett1ement and horizontal deformation control of thick soft soi1 foundation.

关 键 词：厚层软土地基 多桩型复合地基 PHC管桩 双向水泥土搅拌桩 

分 类 号：TV675[水利工程—水利水电工程]