许昌铁矿矿区地面塌陷成因分析
|
摘要
在对许昌铁矿矿区地质环境条件、矿山开采现状、地面塌陷特征调查的基础上,通过分析金属矿山塌陷机理,从新生界盖层特征、矿体顶板及围岩工程地质性质、矿山排水等因素论证了矿区塌陷成因。认为松散的第四系地层结构与微弱胶结新近系多层地层结构有利于地面塌陷的形成,矿体顶板、围岩节理裂隙发育密集,遇水易形成冒落带、导水裂隙带,而部分地段冒落带、导水裂隙带最大高度大于矿层顶板厚度,矿坑排水量的增加是矿区地面塌陷或陷洞形成的主导因素,并提出了矿区地面塌陷防治对策。
Based on investigation of the subsidence characteristics of geological conditions,Xuchang iron ore mining area,mining situation,on the ground,through the analysis of metal mine collapse mechanism,cover characteristics,from the Cenozoic ore body and surrounding rock roof engineering geological properties,mine drainage and other factors that cause mine subsidence area.That the Quaternary strata structure of loose and Weak cementation Neogene strata stratum structure is conducive to the formation of ground subsidence,orebody roof,rock cranny dense,water and easy soft,caving zone and water flowing fractured zone,and part of the caving zone height is greater than the thickness of the seam roof water flowing fractured zone.The increase of mine drainage is the dominant factor for mining ground subsidence or sinkhole formation,and put forward the Countermeasures of mining ground subsidence.
Based on investigation of the subsidence characteristics of geological conditions,Xuchang iron ore mining area,mining situation,on the ground,through the analysis of metal mine collapse mechanism,cover characteristics,from the Cenozoic ore body and surrounding rock roof engineering geological properties,mine drainage and other factors that cause mine subsidence area.That the Quaternary strata structure of loose and Weak cementation Neogene strata stratum structure is conducive to the formation of ground subsidence,orebody roof,rock cranny dense,water and easy soft,caving zone and water flowing fractured zone,and part of the caving zone height is greater than the thickness of the seam roof water flowing fractured zone.The increase of mine drainage is the dominant factor for mining ground subsidence or sinkhole formation,and put forward the Countermeasures of mining ground subsidence.
引文
[1]张泰丽,周爱国,冯小铭,等.南京市地面塌陷发育特征及防治对策[J].中国安全科学学报,2011,21(3):3-8.
[2]李琦,于学海.某盐矿地下开采引起地面塌陷的离散元模拟[J].中国水运(下半月),2013,13(2):197-198.
[3]徐水太,饶运章,潘建平.地下开采引起地表移动和不均匀沉降的机理分析[J].矿业工程,2004,(1):31-33.
[4]刘辉,何春桂,邓喀中,等.开采引起地表塌陷型裂缝的形成机理分析[J].采矿与安全工程学报,2013,30(3):380-384.
[5]骆祖江,王琰,田小伟,等.沧州市地下水开采与地面沉降地裂缝模拟预测[J].水利学报,2013,44(2):198-204.
[6]李强.黑龙江省矿山地面塌陷防治措施建议[J].黑龙江科技信息,2016,(28):38.
[7]林丹,游省易,唐小明.矿坑排水与岩溶地面塌陷的关系[J].中国岩溶,2016,35(02):202-210.
[8]黄健民,吕镁娜,郭宇,等.广州金沙洲岩溶地面塌陷地质灾害成因分析[J].中国岩溶,2013,32(2):167-174.
[9]徐继山,彭建兵,马学军,等.邢台市隆尧地裂缝发育特征及成因分析[J].工程地质学报,2012,20(2):160-169.
[10]彭捷,李永红,刘海南,等.榆神矿区大砭窑煤矿地面塌陷与地裂缝发育规律[J].中国煤炭,2015,41(10):37-41.
[11]周春梅,李沛,虞珏,等.金属矿山地下开采引起地面塌陷的规律[J].武汉工程大学学报,2010,32(1):61-64.
[12]涂良权,胡继华,崔艳蕊,等.许昌县苏桥镇武庄村地面塌陷调查与危害性评估报告[R].河南省地质矿产勘查开发局第二地质勘查院,2015.
[13]王庆兵,高宗军,段秀铭,等.济南苏家庄铁矿矿区地面塌陷成因分析[J].中国岩溶,2010,29(2):193-194.
[2]李琦,于学海.某盐矿地下开采引起地面塌陷的离散元模拟[J].中国水运(下半月),2013,13(2):197-198.
[3]徐水太,饶运章,潘建平.地下开采引起地表移动和不均匀沉降的机理分析[J].矿业工程,2004,(1):31-33.
[4]刘辉,何春桂,邓喀中,等.开采引起地表塌陷型裂缝的形成机理分析[J].采矿与安全工程学报,2013,30(3):380-384.
[5]骆祖江,王琰,田小伟,等.沧州市地下水开采与地面沉降地裂缝模拟预测[J].水利学报,2013,44(2):198-204.
[6]李强.黑龙江省矿山地面塌陷防治措施建议[J].黑龙江科技信息,2016,(28):38.
[7]林丹,游省易,唐小明.矿坑排水与岩溶地面塌陷的关系[J].中国岩溶,2016,35(02):202-210.
[8]黄健民,吕镁娜,郭宇,等.广州金沙洲岩溶地面塌陷地质灾害成因分析[J].中国岩溶,2013,32(2):167-174.
[9]徐继山,彭建兵,马学军,等.邢台市隆尧地裂缝发育特征及成因分析[J].工程地质学报,2012,20(2):160-169.
[10]彭捷,李永红,刘海南,等.榆神矿区大砭窑煤矿地面塌陷与地裂缝发育规律[J].中国煤炭,2015,41(10):37-41.
[11]周春梅,李沛,虞珏,等.金属矿山地下开采引起地面塌陷的规律[J].武汉工程大学学报,2010,32(1):61-64.
[12]涂良权,胡继华,崔艳蕊,等.许昌县苏桥镇武庄村地面塌陷调查与危害性评估报告[R].河南省地质矿产勘查开发局第二地质勘查院,2015.
[13]王庆兵,高宗军,段秀铭,等.济南苏家庄铁矿矿区地面塌陷成因分析[J].中国岩溶,2010,29(2):193-194.