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| Study on the development characteristics and control countermeasure of ground collapse in gypsum mining area of Pizhou, Jiangsu Province |
| ZHOU Dan1,2, JING Jiajun1, XING Xue1 |
1. The fifth Geological Brigade of Jiangsu Geology and Mineral Exploration Bureau, Xuzhou 221004, China;
2. HOHAI University, Nanjing 210098, China |
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Abstract The ground collapse caused by mining is the majon type of geological disasters in gypsum mining area of Pizhou, Jiangsu Province. It has the characteristics of burstiness, contingency and invisibility. It causes huge damage to the safety of residents and their properties due to dense population and widely distributed land and rivers. Based on previous study of geological work, and through field geological survey of the ground collapse, the authors analyzed comprehensively the basic geological conditions, engineering geological conditions, hydrogeological conditions, formation history of the goafs, forms of collapse pits, development processes of the collapse and human engineering activities. The results show that the old goafs of the gypsum mine in Pizhou are mainly distributed in the middle and west of the mining area, whose specification seriously deviates from the mining requirements of the room and pillar method. The overall stability is poor, and the planar and undulate ground deformation is often formed. The recent goafs are mainly distributed in the middle and east of the mining area, which often form dotted ground collapse. The tunnel development areas, mainly located in the middle and east of the newly-built pit, often form dotted ground collapse and hidden points of collapse. Based on domestic managerial experience of ground collapse in gypsum mining area, and combined with the actual situation of this area, the authors proposed a series of prevention and control measures to effectively avoid the risk of disasters. The research could provide some technical support for the following work about control countermeasures of ground collapse in this mining area.
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Received: 19 October 2017
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[1] 邹洋,李夕兵,赵国彦,等.石膏矿采空区上覆岩层冒落规律与危险性评价[J].中国安全科学学报,2011,21(2):101-108.
[2] 贺桂成,刘永,张志军,等.衡山石膏矿地面塌陷机理的FLAC 3D模拟[J].矿业研究与开发,2013,33(1):73-76,109.
[3] 闫世民,李乐功,刘保业.江苏邳州石膏矿区采矿地面塌陷易发性模糊综合评判[J].地质学刊,2014,38(2):334-338.
[4] 徐州市矿业协会.徐州市邳北石膏矿区采矿地面塌陷机理及防治措施研究[R].徐州:徐州市矿业协会,2010.
[5] 刘星辉,苏国友.邵东县石膏矿采空区地面稳定性评价及地质灾害防治对策[J].矿业工程,2004,24(1):20-23.
[6] 陈乐求,彭振斌,徐力生.石膏矿采空区充填加固技术的试验研究[J].中国地质灾害与防治学报,2009,20(4):72-77.
[7] 谢雨军. 湖南某县塌陷灾害易发程度分区与形成机理研究[D].长沙:中南大学,2014.
[8] 卢开华,苏宏,李聃,等.子陵铺石膏矿段采空区稳定性分析及对策研究[J].资源环境与工程,2013,27(5):676-680.
[9] 江苏省地质矿产局第五地质大队.邳州市邳北石膏矿区采空地面塌陷防治规划专题研究报告[R].徐州:江苏省地质矿产局第五地质大队,2015.
[10] 卢毅,施斌,于军,等.地面变形分布式光纤监测模型试验研究[J].工程地质学报,2015,23(5):896-901.
[11] 程国明,赵龙辉,郝春明,等.闭坑矿井地面塌陷监测示范区建设初探[J].水文地质工程地质,2010,37(4):130-134.
[12] 闫建伟,汪云甲,陈国良,等.钱营孜煤矿地表沉陷的D-InSAR监测[J].金属矿山,2011(3):105-107,111.
[13] 郭爱生. 浅谈开拓巷道锚网喷联合支护技术应用研究[J].中国矿业,2011,20(8):92-94. |
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2018, Vol. 5 
