水压致裂地应力测试方法在云南大理—丽江铁路隧道工程中的应用
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摘要
利用水压致裂地应力测试方法对实际工程区进行了地应力测量,确定了工程区隧道围岩现今的地壳应力状态,即原地应力的大小和方向。根据地应力分布特征,分析了隧道开挖过程中发生岩爆等地质灾害的可能性。地应力测量数据的分析结果可作为隧道衬砌的设计、断面的选择及轴线方位的确定的科学依据。
Hydraulic fracturing in-situ stress measurements have been applied in the engineering region of the Dali-Lijiang Railway. This method has determined the present stress state of the earth's crust, i.e. the magnitude and direction of the in situ stress, in the tunnel wall rocks in the engineering region. According to the distribution features of the insitu stress, the paper analyzes the possibility of rock burst during the excavation of the tunnel. The analytic results of the measuring data may serve as the scientific basis for the lining design, section choice and axis azimuth definition of the tunnel.
Hydraulic fracturing in-situ stress measurements have been applied in the engineering region of the Dali-Lijiang Railway. This method has determined the present stress state of the earth's crust, i.e. the magnitude and direction of the in situ stress, in the tunnel wall rocks in the engineering region. According to the distribution features of the insitu stress, the paper analyzes the possibility of rock burst during the excavation of the tunnel. The analytic results of the measuring data may serve as the scientific basis for the lining design, section choice and axis azimuth definition of the tunnel.
引文
[1]王连捷,潘立宙,廖椿庭,等．地应力测量及其在工程中的应用[M]．北 京:地质出版社,1991．前言,Ⅱ
[2]孙广忠．工程地质与地质工程[M]．北京:地震出版社,1993．116-117．
[3]蔡美峰．地应力测量原理和技术[M].北京:科学出版社,2000．45-46
[4]刘允芳．在单钻孔中水压致裂法的三维地应力测量[J]．岩石力学与工 程学报,1999,18(2):192-196．
[5]李金锁,彭华,崔巍,等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):135-143
[6]苏恺之．地应力测量方法[M].北京:地震出版社,1985.95-96
[J]张启锐．实用回归分析[M]．北京:地质出版社,1998．16-44
[8]侯发亮．地下硐室岩爆与围岩应力的关系[A].见:复杂岩石的建筑物 国际学术讨论会文集[C]．1986．
[9]Hoek E,Brown E T.岩石地下工程[M]．北京:冶金工业出版社, 1986．
[10]国际岩石力学学会试验方法委员会．确定岩石应力的建议方法[J]．岩 石力学与工程学报,1988,7(4):357-388．
[11]Ito T, Evans K, Kawai K, et al. Hydraulic fracture reopening pressure and the estimation of maximum horizontal stress[J]. International Journal of Rock Mechanics and Mining Sciences, 1999,36 (6):811-826.
[12]Guo F, Morgenstern N R, Scott J D. Interpretation of hydraulic fracturing pressure: A comparison of eight methods used to identify shut-in pressure[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993,30(6) :627-631.
[2]孙广忠．工程地质与地质工程[M]．北京:地震出版社,1993．116-117．
[3]蔡美峰．地应力测量原理和技术[M].北京:科学出版社,2000．45-46
[4]刘允芳．在单钻孔中水压致裂法的三维地应力测量[J]．岩石力学与工 程学报,1999,18(2):192-196．
[5]李金锁,彭华,崔巍,等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):135-143
[6]苏恺之．地应力测量方法[M].北京:地震出版社,1985.95-96
[J]张启锐．实用回归分析[M]．北京:地质出版社,1998．16-44
[8]侯发亮．地下硐室岩爆与围岩应力的关系[A].见:复杂岩石的建筑物 国际学术讨论会文集[C]．1986．
[9]Hoek E,Brown E T.岩石地下工程[M]．北京:冶金工业出版社, 1986．
[10]国际岩石力学学会试验方法委员会．确定岩石应力的建议方法[J]．岩 石力学与工程学报,1988,7(4):357-388．
[11]Ito T, Evans K, Kawai K, et al. Hydraulic fracture reopening pressure and the estimation of maximum horizontal stress[J]. International Journal of Rock Mechanics and Mining Sciences, 1999,36 (6):811-826.
[12]Guo F, Morgenstern N R, Scott J D. Interpretation of hydraulic fracturing pressure: A comparison of eight methods used to identify shut-in pressure[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993,30(6) :627-631.
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