长-短PHC管桩复合地基在裕溪闸深厚软土地基处理中的应用  

Application of long-short PHC pipe pile composite foundation in treatment of deep soft soil foundation of Yuxi Sluice

作　　者：孟范兵 夏珊珊 MENG Fan-bing;XIA Shan-shan(Anhui Survey&Design Institute of Water Resources&Hydropower Co.,Ltd,Hefei 230088,China)

机构地区：[1]安徽省水利水电勘测设计研究总院有限公司,合肥230088

出　　处：《广西水利水电》2021年第3期56-59,63,共5页Guangxi Water Resources & Hydropower Engineering

摘　　要：介绍了安徽无为裕溪闸的工程概况,分析了工程的地质情况。论述了长-短PHC管桩复合地基在该工程深厚软土地基处理中的应用。从复合地基承载力和沉降两方面对长-短PHC管桩复合地基的长、短桩桩长、布置进行了计算。提出在底板与桩之间设塑性砼褥垫层以满足长-短桩和土共同承担上部荷载的要求,形成复合地基和闸基防渗。长-短PHC管桩施工完成后,经第三方抽检,检测结果合格,单桩及复合地基承载力均满足设计要求。An introduction was made on the general information of Yuxi Sluice at Wuwei County of Anhui province,including the engineering geological conditions and the deep soft soil foundation.The author discussed the applica⁃tion of long-short PHC pipe pile composite foundation in treatment of the soft foundation.The lengths and arrange⁃ment of piles were calculated in respects of foundation bearing capacity and settlement.Plastic concrete cushion is designed between base slab and piles so the long-short piles and soil jointly bear the upper loads,forming compos⁃ite foundation and anti-seepage structure of sluice foundation.The construction of long-short pipe piles had been completed and examined by the third party to be qualified.The bearing capcity of single pile and composite founda⁃tion satisfy the design requirements.

关 键 词：PHC管桩 长-短桩复合地基 软基处理 裕溪闸 

分 类 号：TV553[水利工程—水利水电工程]