期刊论文、会议论文

Wang, W.

中文

西南石油大学学报(自然科学版)

1674-5086

2015

37

3

174-184

第十三届全国渗流力学学术会议

第十三届全国渗流力学学术会议论文集

2015-04-29

成都

中国力学学会<&wdkj&>中国石油学会<&wdkj&>中国岩石力学与工程学会

10.11885/j.issn.1674 5086.2015.03.04.11

国家自然科学基金（51474168） 湖北省自然科学基金（2014CFB889）.

本校为第一且通讯机构

膨胀土在含水量降低时发生干缩开裂,给工程带来了极大的危害,其中降雨条件下裂隙膨胀土渗流问题是一个典型的膨胀土工程问题。制备6个相同的南阳重塑膨胀土样,在相同的环境下分别脱湿96,79,63,48,39,30 h,通过数码拍照得到不同时刻试样表面裂隙图片,通过分析得到试样表面裂隙率;为了衡量裂隙在深部方向的发育情况,使用煤油进行渗透实验,得到煤油入渗系数与脱湿时间、平均含水率、表面裂隙率的关系曲线;在油渗实验结束后进行室内模拟降雨入渗实验,得到裂隙膨胀土入渗率的变化规律。通过对实验数据整理分析发现试样脱湿时间、试样平均含水率、试样表面裂隙率、煤油入渗系数、降雨入渗实验径流开始...

The crack of expansive soil occurs when the moisture content reduces, which brings great harm to the project. Fissured expansive soil seepage under rainfall is a typical engineering problem. In this paper, 6 identical remolded Nanyang expansive soil samples were prepared, which were dried for 96, 79, 63, 48, 39 and 30 h in the same environment, respectively. Surface crack images at different times were obtained with digital camera, and surface fracture rate was obtained through images analysis. To measure crack development in the deep direction...