A mathematic model of time-dependent surface subsidence of coal mining work-out area

摘要：

Time-dependent surface subsidence of coal mining work-out area is of great importance to design the mining process properly and choose good prevention methods for surface structures to ensure the engineering safety.First,mathematic analysis on traditional subsidence models,namely Knothe model and Logistic model,is conducted,and deficiencies of the two traditional models are revealed.Second,one new surface subsidence model based on Weibull function is proposed,which overcomes the deficiencies of the two traditional models.Both subsidence rate and subsidence acceleration of the new proposed model can fit well with the theory mechanic analysis.Knothe model is one degradation expression of the proposed model.Finally,accuracy and application of the presented model are proved by two field investigations.

关键词： Surface subsidence Coal mining work-out area Mathematic model Field investigation

作者: Wang Wei Lu Tinghao Sun Binxiang Wei L L

作者单位: Department of Civil Engineering,Shaoxing College of Art and Science,Shaoxing 312000,China;Geotechnic Geotechnical Institute,Hohai University,Nanjing,210098,China Department of Civil Engineering,Shaoxing College of Art and Science,Shaoxing 312000,China Department of Civil Engineering,Technical University at Braunschweig,Braunschweig,Germany

会议类型: 国际会议

会议名称: The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)

会议地点: 青岛

会议语种:英文

页码: 582-587

在线出版日期: 2007-10-17（万方平台首次上网日期，不代表论文的发表时间）