The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.
本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。
2
The research results indicate that the top inclined fault and the loose rock strata and the unreasonable construction project are the main causes to induce these defects.