TIME-SPACE CALCULATION MODEL OF LAND DEFORMATIONS DUE TO PUMPING
It is extremely important to study the calculation method of land deformations because of how dramatically they threaten the safety of peoples lives and estates. Because of the difficulties of choosing the soil constitutive model and measuring the parameters, the calculation method based on Biots consolidation theory is not presently perfect. In this paper, adopting the combination of one dimension consolidation differential equation and the stochastic medium theory, a new space-time calculation model of land deformation due to pumping is created. First, based on one dimension consolidation differential equations, the semi-expenence model for land subsidences time effect is presented. Second, based on analyzing the space distribution laws of land subsidence, by the stochastic medium theory the space distribution calculation model of land subsidence is set up. Third, synthetically analyzing the time effect and the space distribution characteristics, a new time-space calculation model of land subsidence due to pumping is presented, and the time-space calculation model of the surface tilting, the surface level movement, the surface level deformation and the surface curvature is set up as well. Five parameters are needed when the model performs. Those parameters could be determined by experience formula or displacement back analysis. Lastly, a case of single pumping well is introduced, and the time-space laws of land deformations are calculated through the new calculation model. The calculating results show that the calculation model could nicely reflect the time and space characteristics of land deformations due to pumping, and could expediently, accurately and rapidly calculate land deformations.
CHUN-HUI ZHANG HONG-LIANG YUE LI HUANG YONG-JIANG YU YANG YANG
School of Civil Engineering, Hebei University of Science and Technology Shijiazhuang, 050018, P.R.Ch College of mechanics and Engineering, Liaoning Technical University Fuxin, 123000, P.R.China Center for Material Failure Modeling Research, Dalian University Dalian 116622, China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
269-274
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）