白垩系含水地层立井突水淹井治理技术
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摘要
结合五举煤矿主立井在穿过白垩系含水地层时遭遇的突水淹井事故,分析了事故特点并确立治理方案,提出了西部富水地层立井普通法施工突水淹井事故的综合治理技术。以静水位施工水下混凝土止水垫截水为先导工作,实施控制性排水协同壁后注浆封水,最后进行工作面渐进式高压深孔预注浆堵水。介绍了水下混凝土止水垫的参数设计、特制底卸式吊桶和水下自流平特制混凝土配比、水下止水垫浇筑与养护工艺、止浆垫联合加固及渐进式深孔预注浆等技术。成功解决145.68 m水下360.97 m3/h的涌水井筒淹井事故,为西部地区立井普通法施工及其防治水工作积累了实践经验。
A water inrush accident,which caused shaft flooding,broke out in Wuju coal mine,China when its main ver-tical shaft was getting through the cretaceous water rich aquifer. The accident characteristics were analyzed and a com-prehensive governance techniques of vertical shaft water inrush control of normal construction in western water-rich aq-uifer was proposed. The techniques ensured the water inrush stopping first by constructing a concrete waterproof padunder a static water level,then carried out a restoration operation of controlled water draining combining with backfillgrouting which can maintain the stability of waterproof pad and the shaft side wall,and lastly gradually conducted highpressure deep hole grouting on shaft work face. The design parameters of waterproof pad under water,the proportion ofspecial concrete,and the special hopper bucket design were introduced,and the construction and combinational rein-force technique of waterproof pad and concrete grouting pad were proposed. The comprehensive techniques were ap-plied in the water inrush disaster which caused a flooding level at 145. 68 m and water inflow of 360. 97 m3/ h. Thepractical experience was accumulated for the normal construction of vertical shaft and water controlling in western cre-taceous water-rich aquifer.
A water inrush accident,which caused shaft flooding,broke out in Wuju coal mine,China when its main ver-tical shaft was getting through the cretaceous water rich aquifer. The accident characteristics were analyzed and a com-prehensive governance techniques of vertical shaft water inrush control of normal construction in western water-rich aq-uifer was proposed. The techniques ensured the water inrush stopping first by constructing a concrete waterproof padunder a static water level,then carried out a restoration operation of controlled water draining combining with backfillgrouting which can maintain the stability of waterproof pad and the shaft side wall,and lastly gradually conducted highpressure deep hole grouting on shaft work face. The design parameters of waterproof pad under water,the proportion ofspecial concrete,and the special hopper bucket design were introduced,and the construction and combinational rein-force technique of waterproof pad and concrete grouting pad were proposed. The comprehensive techniques were ap-plied in the water inrush disaster which caused a flooding level at 145. 68 m and water inflow of 360. 97 m3/ h. Thepractical experience was accumulated for the normal construction of vertical shaft and water controlling in western cre-taceous water-rich aquifer.
引文
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[14]司志群,成文福,田军先.静水抛渣注浆法治理深井突水[J].煤矿开采,2009,14(1):89-91.Si Zhiqun,Cheng Wenfu,Tian Junxian.Applying hydrostatic grunting to preventing water-burst in deep mine[J].Coal Mining Technology,2009,14(1):89-91.
[15]王帅.白垩系砂岩含水层普通法立井施工突水恢复治理技术研究[D].西安:西安科技大学,2015.Wang Shuai.Study on the control technology of ordinary construction water inrush in cretaceous sandstone aquifer[D].Xi’an:Xi’an University of Science and Technology,2015.
[16]沈季良.建井工程手册[M].北京:煤炭工业出版社,1986.
[2]张志龙,高延法,武强,等.浅谈矿井水害立体防治技术体系[J].煤炭学报,2013,38(3):378-383.Zhang Zhilong,Gao Yanfa,Wu Qiang,et al.Discussion on the technical system of solid prevention and control on mining flooding[J].Journal of China Coal Society,2013,38(3):378-383.
[3]虎维岳.深部煤炭开采地质安全保障技术现状与研究方向[J].煤炭科学技术,2013,41(8):1-6.Hu Weiyue.Study orientation and present status of geological guarantee technologies to deep mine coal mining[J].Coal Science and Technology,2013,41(8):1-6.
[4]董书宁.对中国煤矿水害频发的几个关键科学问题的探讨[J].煤炭学报,2010,35(1):66-71.Dong Shuning.Some key scientific problems on water hazards frequently happened in China’s coal mines[J].Journal of China Coal Society,2010,35(1):66-71.
[5]虎维岳,田干.我国煤矿水害类型及其防治对策[J].煤炭科学技术,2010,38(1):92-96.Hu Weiyue,Tian Gan.Mine water disaster type and prevention and control counter measures in China[J].Coal Science and Technology,2010,38(1):92-96.
[6]武强.我国矿井水防控与资源化利用的研究进展、问题和展望[J].煤炭学报,2014,39(5):795-805.Wu Qiang.Progress,problem and prospects of prevention and control technology of mine water and reutilization in China[J].Journal of China Coal Society,2014,39(5):795-805.
[7]武强,赵苏启,孙文洁,等.中国煤矿水文地质类型划分与特征分析[J].煤炭学报,2013,38(6):901-905.Wu Qiang,Zhao Suqi,Sun Wenjie,et al.Classification of the hydrogeological type of coal mine and analysis of its characteristics in China[J].Journal of China Coal Society,2013,38(6):901-905.
[8]王厚良,王松青.深立井井筒突水淹井事故处理[J].建井技术,2007,28(4):3-5.
[9]仝洪昌.立井突水淹井事故的快速处理[J].建井技术,2008,29(1):3-6.
[10]钱玉红,张桂玲,刘金林.祁东煤矿风井井筒淹井事故处理[J].建井技术,2001,22(5):18-20.
[11]张向东,张建俊.深立井突水淹井治理及恢复技术研究[J].煤炭学报,2013,38(12):2189-2195.Zhang Xiangdong,Zhang Jiangjun.Techniques applied to water-inrush control and side-wall restoration in deep vertical shaft[J].Journal of China Coal Society,2013,38(12):2189-2195.
[12]李海燕,王琦,江贝,等.深立井大水工作面注浆堵水技术[J].煤炭学报,2011,36(S2):444-448.Li Haiyan,Wang Qi,Jiang Bei,et al.Technology of grouting and blocking water on working face with massive water in deep vertical shaft[J].Journal of China Coal Society,2011,36(S2):444-448.
[13]乔卫国,孟庆彬,林登阁,等.唐口煤矿主井井筒注浆堵水方案及应用[J].煤炭科学技术,2010,38(2):19-21.Qiao Weiguo,Meng Qingbin,Lin Dengge,et al.Grouting and water sealing plan and application to main shaft in Tangkou Coal Mine[J].Coal Science and Technology,2010,38(2):19-21.
[14]司志群,成文福,田军先.静水抛渣注浆法治理深井突水[J].煤矿开采,2009,14(1):89-91.Si Zhiqun,Cheng Wenfu,Tian Junxian.Applying hydrostatic grunting to preventing water-burst in deep mine[J].Coal Mining Technology,2009,14(1):89-91.
[15]王帅.白垩系砂岩含水层普通法立井施工突水恢复治理技术研究[D].西安:西安科技大学,2015.Wang Shuai.Study on the control technology of ordinary construction water inrush in cretaceous sandstone aquifer[D].Xi’an:Xi’an University of Science and Technology,2015.
[16]沈季良.建井工程手册[M].北京:煤炭工业出版社,1986.