| 真空压力传递规律与渗透系数关系的试验研究 |
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| 引用本文： | 李宁,李向凤,吴跃东.真空压力传递规律与渗透系数关系的试验研究[J].路基工程,2011,0(4):101-103. |
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| 作者姓名： | 李宁 李向凤 吴跃东 |
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| 作者单位： | 1.江苏省交通科学研究院股份有限公司, 南京 210017 |
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| 摘 要： | 采用自制的简化模型，进行不同工况的试验，得到真空度在土体中沿水平方向和深度方向的传递规律，及其在不同渗透系数土体中真空度的衰减差异;对试验数据进行拟合，设拟合曲线的斜率K为传递系数，得到不同渗透系数影响下的K值;根据研究结果，对真空预压实际工程中塑料排水板的布置形式及打设深度提出了建议。
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| 关 键 词： | 真空预压法 室内试验 真空度 渗透系数 传递规律 |
| 收稿时间： | 2019-11-11 |
Experimental Study on the Relationship between Vacuum Pressure Transfer Law and Permeability Coefficient |
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| Authors: | LI Ning LI Xiang-feng WU Yue-dong |
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| Institution: | LI Ning1,LI Xiang-feng2,WU Yue-dong3(1.Jiangsu Transportation Research Institute Co.,Ltd.,Nanjing 210017,China,2.SINOHYDRO Road Bridge Engineering Co.,Beijing 100048,3.Research Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | Through self-made simplified model test under different conditions,the transfer law of vacuum pressure along horizontal and vertical direction in soil mass and the attenuation difference of vacuum degree in different soil masses are obtained.After fitting test data,assumed that the slope K of fitting curve is transfer coefficient,then K value under different permeability coefficients can be obtained.According to research results,the layout and installation depth of plastic drainage plate in practical vacuum... |
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| Keywords: | vacuum preloading method indoor test vacuum degree permeability coefficient transfer law |
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