摘要
大连大窑湾三期工程所处理的土体为含水率>120%的超软土。为研究超软土的处理方法,采用袋装沙井、滤膜等效孔径80～100μm和孔径<75μm的3种排水体,0.4 m及0.8 m的2种排水间距,共计6个试验箱进行真空预压法试验研究。通过对表面沉降形态进行沉降优化计算,采用3种模型进行沉降预测,结合监测与计算结果,认为排水体间距为0.4 m、等效孔径≤75μm的国产B型排水板效果最佳。
The soil dealt with the third project in Dayaowan of Dalian is ultra-soft soil with moisture content 120%.In order to study the processing method of ultra-soft soil,the vacuum preloading experiment of 6 orthogonal model boxes has been done with three drainage bodies（bagged sand well and two kinds of filter membrane with equivalent opening sizes are 80～100 μm and 75 μm） and two drainage distances（0.4 m and 0.8 m）.Using the three models for settlement prediction,through the optimization calculation of the surface settlement morphology,the authors consider that the effect of domestic B-type drainage plate with drainage distance is 0.4 m and equivalent opening size ≤75 μm is the best combined with monitoring and calculation.
出处
《世界地质》
CAS
CSCD
2011年第2期296-300,共5页
World Geology
基金
国家自然科学基金项目(40372122
40911120044)
关键词
真空预压
吹填土
沉降形态
固结沉降
模型箱
vacuum preloading
dredger fill
settlement morphology
consolidation settlement
model box
