| 马坪岭煤矿地面岩溶塌陷分析 |
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| 引用本文： | 唐志祥,张道勇,朱林英.马坪岭煤矿地面岩溶塌陷分析[J].中国煤炭地质,2010(2):28-32. |
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| 作者姓名： | 唐志祥 张道勇 朱林英 |
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| 作者单位： | 湖南省煤田地质局第二勘探队;中南大学地学与环境工程学院;湖南省煤炭地质勘查院; |
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| 摘 要： | 与马坪岭煤矿毗邻的某军工企业厂区附近发生地面塌陷,严重影响了企业的正常生产。为此需对马坪岭煤矿地面岩溶塌陷进行分析。通过收集资料与实地调查,认为地面塌陷是由于附近煤矿、老窑开采引发突水,长期疏干排水以及大量的抽取地下水造成的。为了以后能安全顺利开采,以-50m标高为界,根据老窑分布、地层岩性、未来采空区的涌水量,将开采区划分为水文地质条件复杂区和中等区。其中预测复杂区最大涌水量为1 792m3/h,易引发地面塌陷,目前不宜开采;中等区最大涌水量253m3/h,不易引发地面塌陷。并根据矿区构造特点,提出了在断层附近采取帷幕注浆方式,以减少断层导水性的预防措施。
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| 关 键 词： | 岩溶塌陷 水文地质条件 机理分析 涌水量预算 塌陷预测 马坪岭煤矿 |
Surface Karstic Subsidence Analysis in Mapingling Coalmine |
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| Tang Zhixiang,Zhang Daoyong , Zhu Linying.Surface Karstic Subsidence Analysis in Mapingling Coalmine[J].Coal Geology of China,2010(2):28-32. |
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| Authors: | Tang Zhixiang Zhang Daoyong Zhu Linying |
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| Institution: | Tang Zhixiang1,Zhang Daoyong2 , Zhu Linying3(1.The Second Exploration Team,Hunan Bureau of Coal Geological Exploration,Zhuzhou,Hunan 412004,2.School of Geoscience , Environmental Engineering,Central South Univercity,Changsha,Hunan 410083,3.Hunan Provincial Coal Geological Exploration Institute,Hunan 410014) |
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| Abstract: | Surface subsidence had happened in a military industrial enterprise adjoining to the Mapingling coalmine,seriously impacted normal production of the enterprise.Through data collection and on-the-spot investigation,considered that the surface subsidence is caused by nearby coal mining induced water bursting,long-term drainage dewatering and groundwater pumping.For safely and smoothly mining henceforth,to take the-50m elevation as the boundary,divided the working area into hydrogeologically complex and medium... |
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| Keywords: | karstic subsidence hydrogeological condition mechanism analysis water inflow estimation subsidence prediction Mapingling coalmine |
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