Modeling of Hydrofracturing Related to Water Flow and Solid Deformation
Hydrofracturing is formation of cracks within the soil or rock mass due to excessive fluid pressures induced by liquids pumped at high pressure and high flow rate. Fracturing occurs when the in-situ effective compressive stresses are reduced to negative value (tensile stress) greater than the tensile strength of the soil or rock or the shear stress induced is greater than the shear strength of soil or rock. Numerical model specimens on hydrofracturing in soft rock or heavily over-consolidated soil have been carried out to study the fracture pattern of hydrofracturing under various radial boundary conditions. Numerically simulated results show that the fracture patterns of hydrofracturing in soft rock or heavily over-consolidated soil are dependent on the size of radial boundary.
numerical simulation hydrofracturing soft rock
YU Shihai XU Tao CHEN Ping YANG Shengqi
Institute of Science, PLA University of Science and Technology, Nanjing 211101, China Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;Center f Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
2840-2845
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）