Model test system for groundwater seepage in foundation pit engineering
XUE Li-ying1, 2, YANG bin1, 2, LIU Feng-min1, 2, ZHANG Bang-fu1, 2, WANG Kun-tai1, 2
1.Institutute of Foundation Engineering, China Academy of Building Research, Beijing 100013, China; 2. State Key Laboratory of Building Safety and Built Environment, Beijing 100013, China
Abstract：The model test system designed is in accordance with the conditions of foundation pit engineering, which can simulate the groundwater seepage. It is composed of a soil box, a drainage box, a feed-water tank, an upper water tank, a lower water tank and a pressure measuring device. It can get the constant water head inside and outside the foundation pit by changing the water level in the feed-water tank and the drainage box, and thus forming stable seepage. The model test system is used to complete the tests on groundwater seepage of foundation pit with unclosed curtain of cutting-off drains and the groundwater seepage of completely penetrating well in stratified aquifers. The seepage shape gained is consistent with the actual situation, and it is used to study the characteristics and laws of groundwater seepage fields. The test results can guide the actual engineering design, and can be used to modify the calculation of water inflow, the water level drawdown outside the foundation pit and the settlement caused by precipitation in foundation pit specifications.
薛丽影,杨斌,刘丰敏,张邦芾,王昆泰. 基坑工程地下水渗流模型试验系统研究[J]. 岩土工程学报, 2017, 39(s1): 126-131.
XUE Li-ying, YANG bin, LIU Feng-min, ZHANG Bang-fu, WANG Kun-tai. Model test system for groundwater seepage in foundation pit engineering. Chinese J. Geot. Eng., 2017, 39(s1): 126-131.
[1] 许烨霜. 考虑地下构筑物对地下水渗流阻挡效应的地面沉降性状研究[D]. 上海: 上海交通大学, 2010. (XU Ye-shuang. Evaluation of the behaviour of groundwater seepage and land subsience via considering infrastructures penetrated into aquifers[D]. Shanghai: Shanghai Jiao Tong University, 2010. (in Chinese)) [2] 曹 杰. 悬挂式防渗墙防渗效果的模拟试验研究[J].山西建筑, 2011(25): 223-224. (CAO Jie. Research on simulation test of seepage resistance effect for suspended diaphragm wall[J]. Shanxi Architecture, 2011(25): 223-224. (in Chinese)) （下转11页）
