摘要
针对海绵城市建设中渗水构件的广泛研究,以原位渗透试验为依托,根据饱和-非饱和渗流方程,采用有限元法分析软件MidasGTSNx进行模拟,对布置渗水构件和未布置渗水构件的土体的渗水效果进行量化分析,研究降水条件下土体及渗井孔隙水压力的动态响应,分析表明,渗水构件能够改变土体的渗透性能,并且能够增大土体的入渗效率。同一深度处,渗井的孔隙水压力值大于土体的孔隙水压力值,渗井的渗透系数大于土体的渗透系数。
At present, extensive research on water seepage members in the construction of sponge cities is prevalent in our country. In this paper, according to penetration experiments, saturated-unsaturated seepage equation and simulation of finite element analysis software Midas GTS Nx, study on dynamic response of pore water pressure in soil and seepage well under precipitation conditions was carried out. We obtain the following conclusions: the water seepage material can change the permeability of the soil and increase the infiltration efficiency of the soil. At the same depth, the pore water pressure value of the seepage well is greater than the pore water pressure value of the soil, and the permeability coefficient of the seepage well is greater than the permeability coefficient of the soil.
作者
侯英剑
李顺群
王彦洋
HOU Ying-jian;LI Shun-qun;WANG Yan-yang(School of Civil Engineering,Tianjin Chengjian University,Tianjin 300384,China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin 300384,China;Tianjin Technology Research Institute of Construction Engineering,Tianjin 300204,China)
出处
《辽宁工业大学学报（自然科学版）》
2019年第5期323-325,350,共4页
Journal of Liaoning University of Technology(Natural Science Edition)
关键词
海绵城市
渗井
渗透系数
降雨入渗
sponge city
seepage well
permeability coefficient
rainfall infiltration
