液固互动作用下突水模拟分析

以开采过程中的煤矿突水为例，应用液固互动理论，采用有限元分析软件ADINA针对二种突水模式分别建立几何模型，进行数值模拟。在利用软件进行三维有限元建模时，分为结构模型和流体模型两种。针对不同的突水模式，探讨在流固耦合作用下的煤矿渗透突水过程中，地层与场地的变形特征。结果表明：对于断层突水模式中，接近45°的断层倾角对地层和场地的影响较大，因此在煤层开采中应该特别注意倾向于开采工作面的小倾角断层；在裂隙突水模式中，较大的渗透系数对突水速度和突水量影响显著，可以通过选择合适的开采区域尽量避免突水事故的发生。

Analysis of Water-inrush Simulation in Fluid-Solid Coupling Effect

Taken bursting water in the process of mining as an example, Based on the fluid-solid interaction theory are established, a numerical simulation model for bursting water by ADINA. Which are structure model and the fluid model. For each different water-inrush mode, characteristics of stratum and site are discussed under the fluid-solid interaction in the processing of coal mine water-inrushing. Two conclusions are obtained. Firstly,it has an effect under 45° fault-dip on strata and venues fauhage water-inrush mode. Particular attention should be played as inclined to small mining working face angle fault in the processing of coal mining. Secondly, a larger permeability coefficient affects water-inrush speed and water percolating capacity, water-inrish accidents can be avoided by selecting the proper mining area.