论文部分内容阅读
通过研究，提出了开采引起的地表任意点动态应变分量的计算方法．将地表点的变形同地表土的力学性质结合起来，提出了地表裂缝分布规律动态计算模型，并用实例说明了模型的正确性．本文的成果弥补了用水平变形临界值或者裂缝角来判别裂缝区域之不足，具有普遍的适用性．
Through the research, the calculation method of dynamic strain components at any point on the ground caused by mining is put forward. By combining the deformation of surface points with the mechanical properties of surface soil, a dynamic calculation model of the distribution of surface cracks is proposed. The correctness of the model is illustrated by an example. The results of this paper make up for the lack of the fracture area by using the horizontal deformation threshold or the crack angle, which is of universal applicability.