Subsurface Subsidence Prediction Model and Its Potential Applications for Longwall Mining Operations

摘要：

This paper summarizes the development of an enhanced influence function method to predict longwall mining induced subsurface subsidence. This model takes the stratifications of the overburden, particularly the massive hard rock (i. e., limestone and sandstone) layers, into consideration. A new deformation term, total strain or void intensity, has been introduced and can be determined from the predicted subsurface movements. This term reflects the volumetric expansion of overburden rock under the influence of mine subsidence. A case study has demonstrated the applicability of the enhanced subsurface subsidence prediction model.

关键词： subsurface subsidence influence function method void intensity hard rock percentage

作者: QIU Biao LUO Yi

作者单位: Department of Mining Engineering, West Virginia University, Morgantown, WV 26505, USA

会议类型: 国际会议

会议名称: The 2nd International Conference on Mine Safety and Environment Protection(第二届采矿、安全与环境保护国际会议)

会议地点: 西安

会议语种:英文

页码: 271-278

在线出版日期: 2011-10-10（万方平台首次上网日期，不代表论文的发表时间）