地下工程渗流场与应力场耦合的相似材料模拟

Simulation materials experiment of coupling seepage field and stress field in underground engineering

针对工程岩体中存在的渗流场与应力场耦合问题,在研制固液耦合实验材料的基础上制作了固液两相相似材料模拟模型,通过地下煤炭开采中渗流场与应力场耦合的相似材料模拟,得到了水在工程破坏岩体中的渗流以及岩体在渗流场作用下的破坏规律,确定了上湾保水采煤工作面的合理推进距离及基岩保护层的厚度。实验得出的结论和现场实践所取得的结论一致,进一步证实了实验的可靠性,这一实验的成功为以后研究渗流场与应力场的耦合开辟了新的途径。

In view of the seepage field and stress field existing in many engineering rock masses, the model of solid and fluid two-phase similar material simulation is made on the basis of researching solid and fluid coupling, Through the simulation of coupling seepage field and stress field in underground mining, the law of water seepage in destructed rock and the law of rock destruction in seepage field are obtained, and the reasonable face advancing distance and the reasonable protective seam thickness in water resources preservation mining are determined, reliability of experiment is proved by the consistency of materials simulation experiment and field observation, The success of experiment has open a new way to researching coupling seepage field and stress field.