| 真空预压法加固吹填土的模型箱试验 |
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| 引用本文： | 彭湘林,王清,夏玉斌,陈允进.真空预压法加固吹填土的模型箱试验[J].世界地质,2011,30(2):296-300. |
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| 作者姓名： | 彭湘林 王清 夏玉斌 陈允进 |
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| 作者单位： | 1． 吉林大学建设工程学院，长春130026; 2． 中交水运规划设计院有限公司，北京100007 |
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| 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 ～ 100 μm 和孔径＜ 75 μm 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≤75 μm 的国产B 型排水板效果最佳。
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| 关 键 词： | 真空预压 吹填土 沉降形态 固结沉降 模型箱 |
Experiment on model box of dredger fill strengthening by vacuum preloading method |
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| PENG Xiang-lin,WANG Qing,XIA Yu-bin,CHEN Yun-jin.Experiment on model box of dredger fill strengthening by vacuum preloading method[J].World Geology,2011,30(2):296-300. |
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| Authors: | PENG Xiang-lin WANG Qing XIA Yu-bin CHEN Yun-jin |
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| Institution: | 1． College of Construction Engineering，Jilin University，Changchun 130026，China; 2． CCCC Water Transportation Consultants Co． ，Ltd，Beijing 100007，China |
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| Abstract: | 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. |
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| Keywords: | vacuum preloading dredger fill settlement morphology consolidation settlement model box |
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