堆土预压排水处理大型油罐软弱地基  

Treating Soft Clay Ground of Large-scale Tank with Stack Preloading Drainage

作　　者：吉登虎 

机构地区：[1]金陵石油化工设计院,江苏南京210042

出　　处：《沈阳建筑大学学报（自然科学版）》2004年第4期252-256,共5页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(50342015)

摘　　要：为了在短期内实现软土地基承载的处理方法并节约资金,就地取材用堆土预压排水的施工方法,成功地连续处理了软弱地基.为了加快排水固结,提高堆土预压的效果,采用深达31m的塑料排水板进行联合处理,并对地基及建成的油罐进行了沉降、水平位移及孔隙水压力等指标进行了监测,实践结果说明:采用塑料排水板结合堆土预压法处理厚达28m的淤泥质粘土是可行的.通过该工程实例在技术上取得了有价值的数据和资料,在经济上节约了大量资金,为今后在同类条件下用堆载预压排水的方法处理大型油罐下深厚软弱地基积累了成功的经验.This paper presents a stack preloading drainage instance,which was successfully applied to treating 31-meter-deep depth soft clay ground beneath 6 oil tanks,(50?000m^3)volume each,in YANGZI downstream regions.In order to make the drainage consolidation quickly,enhance the effect of stack preloading drainage,plastic drain that is 31m long is used together,and the settlement,lateral displacement and pore water pressure and etc of the ground and tanks are monitored.The practical result applied it is feasible to dealing 28m depth slit quality clay with plastic drain and stack preloading drainage together.According to this instance,some valuable data and information are provided; a lot of charges are saved.In addition,some experiences in preloading treatment on thick-bedded soft clay ground beneath large-scale oil tanks are offered.

关 键 词：大型油罐 堆土预压排水 软弱地基 塑料排水板 沉降速率 

分 类 号：TU447[建筑科学—岩土工程] TU249.6[建筑科学—土工工程]