Numerical simulation study on porosity coal and rock of hydraulic fracturing progress effect

摘要：

　　In order to improve effectiveness and safety of hydraulic fracturing, used the basic principle of RFPA2D-FLOW, based on characteristics of statistical damage about coal and rock mass and Drucker-Prager failure criterion.Obtained the constitutive model of injury which by effect of hydraulic fracturing in coal and rock.On this basis, simulation verification is done on coal mass fracture which include changing of stress field, acoustic field and displacement field under the effect of high press water.The results showed that the model which has built can be well reflect fracture of coal and rock mass in hydraulic fracturing progress.

关键词： porosity coal rock hydraulic fracturing crack propagation rock burst hazard

作者: ZHU Meng-meng TIAN Hou-qiang CHENG Yun-hai ZHANG Chao-chao

作者单位: School of Mining and Safety ,Anhui University of Science and Technology, Huainan 232001, China

会议类型: 国际会议

会议名称: International Mining Conference 2014(2014国际采矿论坛)

会议地点: 安徽淮南

会议语种:英文

页码: 491-494

在线出版日期: 2014-09-19（万方平台首次上网日期，不代表论文的发表时间）