Subsidence rules of underground coal mine in different thickness of soil layer-Luan Coal base in China
The damage caused by underground coal mining is serious in mining areas of China, studying and revealing the rules of ground movement and deformation under different geological conditions are very important.Numerical software ANSYS is utilized in this paper to simulate mining under two special geological conditions: A)thick unconsolidated soil layer and thin bedrock, B) thin soil layer and thick bedrock.The rules of ground movement and deformation in conditions of different ratios of soil layer to bedrock were found out.Based on the rules, a prediction parameter modified model of influence function was proposed, this model is suitable for different thickness of unconsolidated soil layer.The prediction results have been verified by two sets of typical filed data.
Numerical simulation Ground movement and deformation Prediction of ground subsidence Ratio of soil layer to bedrock
Haifeng Hu Xugang Lian
College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
国际会议
2015 International Academic Forum for Mine Surveying in China(2015中国国际矿山测量学术论坛)
北京
英文
98-105
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）