深部宽条带开采地表变形规律研究

Research on Surface Deformation For Deep Large Width Strip Mining

采用压力拱理论和A.H.Wilson理论确定条带开采的开采宽度和保留宽度,通过相似模拟实验结合数值模拟计算分析深部宽条带开采地表变形规律,预计地表变形参数。实验结果表明深部条带开采在增大采出宽度和保留宽度的条件下,对地表下沉的控制仍有着显著作用,且地表不会出现波浪形下沉。在预计参数难以确定的条件下,采用相似模拟实验结合数值计算的方法预计地表变形是一种可靠的途径。

Analyze surface deformation and predict deformer parameters for deep large width strip mining through simulation experiments and numerical simulation with width of strip mining and retention calculated by the theory of pressure arches and A.H.Wilson theory.The conclusions： strip mining which can be added the width of strip mining and retention with increasing mining depth still have a significant role in controlling the surface subsidence,and the surface will not be wavy subsidence.In the conditions of prediction parameters are uncertain,the method of simulation experiments and numerical simulation is a reliable way to analyze surface deformation.