赵楼煤矿1000m深孔水压致裂地应力测量及其应力场研究
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摘要
赵楼煤矿是目前国内开采最深的非金属矿山之一,处于曹县—郓城活动断裂带上,区内地质构造较为复杂。为了掌握矿区原岩应力场分布规律,应用深孔水压致裂地应力测量技术开展地应力测量工作,获得该矿区2个钻孔中16个测段的应力状态。测量结果表明:矿区最大主应力随深度增加基本呈线性增大,且在800 m深度处应力值有所变化,最大水平主应力为28.45～45.75 MPa,方向NEE,反映出矿区地应力场以水平应力为主导的特点,测量结果可为矿山建设和开采设计提供科学依据。
Zhaolou coal mine is one of the deepest mines in China.Its geological structure is more complex because it is located in Caoxian—Yuncheng active fault.In order to master the distribution law of in-situ stress field in the mine,the in-situ stress measurement is carried out by means of the hydraulic fracturing in-situ stress measurement technique.The stress states are obtained for 16 measuring sections in 2 holes.The measurement results show that the maximum principal stress increases linearly as the depth increases;and the in-situ stresses are varied around the depth of 800 m.The maximum horizontal principal stresses are 28.45–45.75 MPa;and their directions are NEE.It reflects that the horizontal stress is dominant in the stress field of the mine area.The proposed measurement results provide scientific basis for the mine construction and mining design.
Zhaolou coal mine is one of the deepest mines in China.Its geological structure is more complex because it is located in Caoxian—Yuncheng active fault.In order to master the distribution law of in-situ stress field in the mine,the in-situ stress measurement is carried out by means of the hydraulic fracturing in-situ stress measurement technique.The stress states are obtained for 16 measuring sections in 2 holes.The measurement results show that the maximum principal stress increases linearly as the depth increases;and the in-situ stresses are varied around the depth of 800 m.The maximum horizontal principal stresses are 28.45–45.75 MPa;and their directions are NEE.It reflects that the horizontal stress is dominant in the stress field of the mine area.The proposed measurement results provide scientific basis for the mine construction and mining design.
引文
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[16]李方全,孙世宗.华北及郯庐断裂带地应力测量[J].岩石力学与工程学报,1982,1(1):73–86.(LI Fangquan,SUN Shizong.In-situ stress measurements in North China and Tancheng—Lujiang fault zone[J].Chinese Journal of Rock Mechanics and Engineering,1982,1(1):73–86.(in Chinese))
[17]中国地质调查局.1 000 m深孔水压致裂地应力测量系统通过验收[J].地质装备,2009,10(1):6.(China Geological Survey.Acceptance of 1 000 m deep hole hydraulic fracturing stress measurement system[J].Equipment for Geotechnical Engineering,2009,10(1):6.(in Chinese))
[18]王学潮,向宏发.聊城—兰考断裂综合研究及黄河下游河道稳定性分析[M].北京:黄河水利出版社,2001:1–163.(WANG Xuechao,XIANG Hongfa.Synthetical study of Liaocheng—Lankao fracture and stability analysis of Yellow River course in lower reach[M].Beijing:Yellow River Water Conservancy,2001:1–163.(in Chinese))
[19]胡长和.1937年菏泽地震[M].北京:地震出版社,1991:1–178.(HU Changhe.Earthquake occurred in Heze in 1937[M].Beijing:Earthquake Press,1991:1–178.(in Chinese))
[20]吴满路,廖椿庭,张春山,等.红透山铜矿地应力测量及其分布规律研究[J].岩石力学与工程学报,2004,23(23):3 943–3 947.(WU Manlu,LIAO Chunting,ZHANG Chunshan,et al.In-situ stress measurement and analysis of its distribution law in Hongtoushan copper mine[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(23):3 943–3 947(.in Chinese))
[21]康红普,林健,张晓.深部矿井地应力测量方法研究与应用[J].岩石力学与工程学报,2007,26(5):929–933.(KANG Hongpu,LIN Jian,ZHANG Xiao.Research and application of in-situ stress measurement in deep mines[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(5):929–933.(in Chinese))
[22]张延新,蔡美峰,王克忠.平顶山一矿地应力分布特征研究[J].岩石力学与工程学报,2004,23(23):4 033–4 037.(ZHANG Yanxin,CAI Meifeng,WANG Kezhong.Study of distribution characteristics of in-situ stresses for Pingdingshan No.1 Mine[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(23):4 033–4 037.(in Chinese))
[23]GALE W J,BLACKWOOD R W.Stress distributions and rock failure around coal mine roadways[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1987,24(3):165–173.
[2]蔡美峰.地应力测量原理和技术[M].北京:科学出版社,2000:1–232.(Cai Meifeng.Principle and techniques of in-situ stress measurement[M].Beijing:Science Press,2000:1–232.(in Chinese))
[3]HAYASHI K,SATO A,ITO T.In-situ stress measurements by hydraulic fracturing for a rock mass with many planes of weakness[J].International Journal of Rock Mechanics and Mining Sciences,1997,34(1):45–48.
[4]蔡美峰.地应力及原位地应力测量[C]//王思敬编.中国岩石力学与工程世纪成就.南京:河海大学出版社,2004:485–515.(CAI Meifeng.Rock stress and its in-situ measurement[C]//WANG Sijing ed.Century Achievement of Rock Mechanics and Engineering in China.Nanjing:Hohai University Press,2004:485–515.(in Chinese))
[5]蔡美峰.地应力测量原理和方法的评述[J].岩石力学与工程学报,1993,12(3):275–283.(CAI Meifeng.Commentary of principle and techniques of rock stress measurement[J].Chinese Journal of Rock Mechanics and Engineering,1993,12(3):275–283.(in Chinese))
[6]International Society for Rock Mechanics.Suggested methods for rock stress determination[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1987,24(1):55–73.
[7]蔡美峰,乔兰,于波,等.金川二矿区深部地应力测量及其分布规律研究[J].岩石力学与工程学报,1999,18(4):414–418.(CAI Meifeng,QIAO Lan,YU Bo,et al.Results and analysis of in-situ stress measurement at deep position of mining area No.2 of Jinchuan nickel mine[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(4):414–418.(in Chinese))
[8]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2 803–2 813.(HE Manchao,XIE Heping,PENG Suping,et al.Study on rock mechanics in deep mining engineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2 803–2 813.(in Chinese))
[9]何满潮.深部开采工程岩石力学的现状及其展望[C]//第八次全国岩石力学与工程学术大会论文集.北京:科学出版社,2004:88–94.(HE Manchao.Present state and perspective of rock mechanics in deep mining engineering[C]//Proceedings of the 8th Conference on Rock Mechanics and Engineering.Beijing:Science Press,2004:88–94.(in Chinese))
[10]刘允芳.水压致裂三维应力测量[J].岩石力学与工程学报,1991,10(3):246–256.(LIU Yunfang.3D in-situ stress measurement by hydraulic fracturing technique[J].Chinese Journal of Rock Mechanics and Engineering,1991,10(3):246–256.(in Chinese))
[11]彭华,马秀敏.南水北调西线工程区地震危险性分析及预测[J].地质力学学报,2007,13(1):15–24.(PENG Hua,MA Xiumin.Risk analysis and prediction of earthquakes in the construction area of the west line of the South-to-North Water Diversion Project[J].Journal of Geomechanics,2007,13(1):15–24.(in Chinese))
[12]马秀敏,彭华,李金锁.新疆西部地应力测量在隧道工程中的应用[J].地质力学学报,2005,11(4):386–393.(MA Xiumin,PENG Hua,LI Jinsuo.Application of hydraulic fracturing in-situ stress measurements in tunneling in western Xinjiang[J].Journal of Geomechanics,2005,11(4):386–393.(in Chinese))
[13]李金锁,彭华,崔巍.云南西北部铁路隧道地应力测试及工程应用[J].地质力学学报,2005,11(2):135–144.(LI Jinsuo,PENG Hua,CUI Wei.In-situ stress measurement and its engineering application to railway tunnels in northwest of Yunnan Province[J].Journal of Geomechanics,2005,11(2):135–144.(in Chinese))
[14]马秀敏,彭华,李金锁,等.襄渝铁路增建二线——新白岩寨隧道地应力测量及其在岩爆分析中的应用[J].地球学报,2006,27(2):181–186.(MA Xiumin,PENG Hua,LI Jinsuo,et al.In-situ stress measurement and its application to rockburst analysis in Xinbaiyanzhai tunnel of the Xiangfan—Chongqing Railway[J].Acta Geoscientica Sinica,2006,27(2):181–186.(in Chinese))
[15]蔡美峰,陈长臻,彭华,等.万福煤矿深部水压致裂法地应力测量[J].岩石力学与工程学报,2006,25(3):1 069–1 074.(CAI Meifeng,CHEN Changzhen,PENG Hua,et al.In-situ stress measurement by hydraulic fracturing technique in deep position of Wanfu coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(3):1 069–1 074.(in Chinese))
[16]李方全,孙世宗.华北及郯庐断裂带地应力测量[J].岩石力学与工程学报,1982,1(1):73–86.(LI Fangquan,SUN Shizong.In-situ stress measurements in North China and Tancheng—Lujiang fault zone[J].Chinese Journal of Rock Mechanics and Engineering,1982,1(1):73–86.(in Chinese))
[17]中国地质调查局.1 000 m深孔水压致裂地应力测量系统通过验收[J].地质装备,2009,10(1):6.(China Geological Survey.Acceptance of 1 000 m deep hole hydraulic fracturing stress measurement system[J].Equipment for Geotechnical Engineering,2009,10(1):6.(in Chinese))
[18]王学潮,向宏发.聊城—兰考断裂综合研究及黄河下游河道稳定性分析[M].北京:黄河水利出版社,2001:1–163.(WANG Xuechao,XIANG Hongfa.Synthetical study of Liaocheng—Lankao fracture and stability analysis of Yellow River course in lower reach[M].Beijing:Yellow River Water Conservancy,2001:1–163.(in Chinese))
[19]胡长和.1937年菏泽地震[M].北京:地震出版社,1991:1–178.(HU Changhe.Earthquake occurred in Heze in 1937[M].Beijing:Earthquake Press,1991:1–178.(in Chinese))
[20]吴满路,廖椿庭,张春山,等.红透山铜矿地应力测量及其分布规律研究[J].岩石力学与工程学报,2004,23(23):3 943–3 947.(WU Manlu,LIAO Chunting,ZHANG Chunshan,et al.In-situ stress measurement and analysis of its distribution law in Hongtoushan copper mine[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(23):3 943–3 947(.in Chinese))
[21]康红普,林健,张晓.深部矿井地应力测量方法研究与应用[J].岩石力学与工程学报,2007,26(5):929–933.(KANG Hongpu,LIN Jian,ZHANG Xiao.Research and application of in-situ stress measurement in deep mines[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(5):929–933.(in Chinese))
[22]张延新,蔡美峰,王克忠.平顶山一矿地应力分布特征研究[J].岩石力学与工程学报,2004,23(23):4 033–4 037.(ZHANG Yanxin,CAI Meifeng,WANG Kezhong.Study of distribution characteristics of in-situ stresses for Pingdingshan No.1 Mine[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(23):4 033–4 037.(in Chinese))
[23]GALE W J,BLACKWOOD R W.Stress distributions and rock failure around coal mine roadways[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1987,24(3):165–173.
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