某圆形煤场堆煤区域CFG复合地基处理分析  

The analysis of CFG composite foundation treatment in coal stacking area of a circular close coal yard

作　　者：张纯康 林凡伟 丁伟亮 周兴乐 陈婷 陈明祥[2] ZHANG Chunkang;LIN Fanwei;DING Weiliang;ZHOU Xingle;CHEN Ting;CHEN Mingxiang(Central Southern China Electric Power Design Institute Co.,Ltd.,China Power Engineering Consulting Group,Wuhan 430071,China;Wuhan University,Wuhan 430072,China)

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430071 [2]武汉大学,湖北武汉430072

出　　处：《武汉大学学报(工学版)》2024年第S2期51-56,共6页Engineering Journal of Wuhan University

摘　　要：大型整体式圆形煤场堆煤区域面积大、堆煤高、堆煤荷载大,煤压力导致基础土体产生沉降和水平变形,对挡煤墙下的桩基产生较大负摩擦力和水平推力,而堆煤区域采取CFG复合地基处理可以有效减小土体变形产生的不利影响。依托某电厂直径120 m整体式圆形煤场,堆煤区域采用直径400 mm的CFG桩,针对不同的布桩间距和桩长进行有限元分析,得出经济、安全的地基处理方案。As the area and height of coal is large in large diameter round coal silo,the coal pressure in the coal stacking area leads to the vertical settlement and horizontal deformation of the foundation soil,which produces large negative friction and horizontal thrust on the pile foundation under the coal retaining wall.CFG composite foundation treatment in the coal stacking area can effectively reduce the adverse effects of soil deformation.In this paper,based on a circular close coal yard with a diameter of 120 m in a power plant,the foundation treatment of coal stacking area adopts a diameter of 400 mm CFG pile.The finite element analysis is carried out for different pile spacing and pile length,and an economical and safe foundation treatment scheme is obtained.

关 键 词：圆形煤场 CFG复合地基 有限元分析 

分 类 号：TU312.1[建筑科学—结构工程]