断层突水温度-非线性渗流-应力耦合模型研究  

Study on Temperature-hydrological-mechanical Coupling Model for Fault Water Inrush

作　　者：刘伟韬 赵吉园 丁希阳 LIU Weitao;ZHAO Jiyuan;DING Xiyang(College of Mining and Safety Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Yangcheng Coal Mine,Shandong Jikuang Luneng Coal and Electric Power Company Ltd,Jining 272000,China)

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东济矿鲁能煤电股份有限公司阳城煤矿,山东济宁272000

出　　处：《煤矿安全》2018年第11期59-62,68,共5页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51274135);国家高技术研究发展计划(863计划)资助项目(2015AA016404-4)

摘　　要：为了研究深部矿井高地应力、高承压水压及高地温条件下断层突水过程中的底板承压水运移规律和地温变化规律,运用COMSOL建立温度场(T)-非线性渗流场(H)-应力场(M)耦合模型,其中非线性渗流方程耦合Darcy定律, Brinkman方程和Navier-Stokes方程。结果表明:模型能够很好地描述温度场、渗流场和采动应力场之间的相互作用关系以及底板承压水从含水层经过断层破碎带到达巷道的非线性运移过程;采动应力场和渗流速度对断层带温度场的影响很大,通过监测断层带的温度变化,可以预测断层带渗流场的变化,从而预测断层突水。In order to investigate the confined water flow laws in the process of fault water-inrush under the condition of high water pressure, high stress and high ground temperature in deep mine,a temperature（T）-hydrological（H）-mechanical（M）coupling model was established by using COMSOL. The nonlinear water flow equation couples Darcy＇s law, Brinkman equation and Navier-Stokes equation. Results show that this THM coupling model can describe the interaction relationship of temperature field, hydrological field and mechanical field. The nonlinear water flow equation can describe the nonlinear migration of confined water from aquifer through fault fracture zone to roadway. The mining stress and the water velocity have great influence on the temperature of fault zone. The temperature change of fault zone can reflect the change of seepage field in the fault and confined aquifer. Therefore, monitoring the temperature change of fault zone, the fault water inrush can be predicted.

关 键 词：断层突水 THM耦合 数值模型 非线性流动 温度 

分 类 号：TD745.2[矿业工程—矿井通风与安全]