论文部分内容阅读
开采区覆岩离层注浆减沉技术需要掌握覆岩的离层规律。本文利用薄层接触元模拟覆岩内部岩层接触面 ,用粘弹性三单元模型建立本构关系 ,用有限单元方法模拟离层的动态发育规律 ,得到了离层产生、发展的动态过程。对覆岩离层带高压注浆减沉工程设计具有指导意义。
In the mining area, the off-site grouting and sedimentation reduction technology of overburden need to grasp the law of stratification of overlying strata. In this paper, the contact surface of overburden strata is modeled by thin-layer contact elements, the constitutive relation is established by using the viscoelastic three-element model, and the dynamic development law of the detachment is simulated by the finite element method. It is instructive for the design of high pressure grouting and sinking in the overburden strata.