• 责任者：Su Chang (Geological Environmental Center of Hubei Province ; Wuhan 430034 ; China) ; Peng Zhenghua
• 刊名：The Chinese Journal of Geological Hazard and Control
• 出版年：2011
• 卷期：22(1)
• 关键词：地面沉降 ; land subsidence ; 湖北 ; Hubei Province
• 页码：p.69-74
• 图表：3 illus., 1 table, 3 refs.
• 分类号：1800
• issnNo：ISSN1003-8035
• isbnNo：CN11-2825/P

A Comprehensive investigation found that there are two types of ground collapses in Songyi mine area, Hubei Province, according to the depth of the different roof, there are mining induced collapse in shallowly buried coal mine area, and karst collapse in deeply buried coal mine area. Mining induced collapses in shallowly buried coal mine area are found in the gentle slope area, where the roof of coal mine is Qixia and Maokou Formation, and there are thick coal seams, complex geological structures, and underground karst. Disorder mining, repeated mining, pillar damage are major factors of this type of collapse. Karst collapses in deeply buried coal mine area are caused by the vacuum suction actions, which high strength mine drainage leads to the groundwater level greatly reducing and then happening karst collapse by vacuum erosion. The prevention and treatment recommendations are put forward.