从浅表花岗岩体中地应力测试深度与应力值间关系分析剥蚀厚度
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摘要
针对浅表高水平地应力和高侧压系数常出现在岩浆岩和变质岩中的现象,以广泛分布的形成于地下深处的花岗岩为例,指出构造隆升作用下,花岗岩从形成时位于深部到现在处于剥蚀卸荷过程中而常出露地表,无论是采用静水压力还是弹性体假设,都可得出其侧压系数明显变大的结论。对254组花岗岩地应力现场实测结果统计,得到了侧压系数拟合公式更符合花岗岩实测结果分布情况。由广义虎克定律出发,结合垂向卸荷后地下某处水平应变为0的假设,推导出花岗岩体剥蚀厚度计算公式,其结果接近目前为止认识到的剥蚀厚度的上限值。初步工程资料分析对比发现,大亚湾燕山期花岗岩地质分析剥蚀厚度为1 300 m,计算结果介于1 500~3 000 m之间;三峡工程船闸区花岗岩剥蚀厚度为1 700~3 200 m,与裂变径迹法测试结果比较吻合。结果说明,花岗岩体剥蚀厚度相对于现在一般工程埋深是比较大的。
It was found that in shallow depth in magma and metamorphic rocks,the value of lateral coefficient is higher relative to sedimentary rocks.Taking the granitic rocks for examples,which is widely exposed in ground surface and regarded as originally intruded to form a dome at larger depth,this paper presents the computation result of denudation thickness.The method is started from two kinds of suppositions for representation of dominant stress in 3D in large depth before obvious denudation.One is hydrostatic head,another is Hooke's law and then the horizontal strain is zero during denudation process.The lateral coefficient formula is used to infer the denudation thickness,which is commonly larger for both of the two suppositions.Statistic results of in-situ stress data of 254 groups in granitic rocks are of a new fitting formula to the average counterparts.From the 2nd supposition,it is inferred the denudation thickness,which is seemed to closed to the updated high limitary values of denudation thickness whether from geological judgment or fission-track data of apatite.To check the feasibility of this method,two case histories are presented.The denudation thickness as Daya Bay is between 1 500 m and 3 000 m,closed to 1300m from geological judgment.The denudation thickness at the shiplock of the Three Gorges Project is 1 700-3 200 m,similar to that test result of fission track analysis.The results further prove that the denudation thickness is relatively larger than most of the buried depth of underground rock engineering.
引文
[1]李伟.恢复地层剥蚀厚度方法综述[J].中国海上油气,1996,10(3):167-171.LI Wei.Review of reconstructing the strata denudation thickness[J].China Offshore Oil and Gas(Geology),1996,10(3):167-171.
    [2]胡圣标,汪集旸,张容燕.利用镜质体反射率数据估算地层剥蚀厚度[J].石油勘探与开发,1999,26(4):42-45.HU Sheng-biao,WANG Ji-yang,ZHANG Rong-yan.Rate of vitrinite reflectance for assessment of denudation thickness[J].Petroleum Exploration and Development,1999,26(4):42-45.
    [3]李储华,纪友亮,张世奇,等.应用宇宙成因核素和估算剥蚀面的暴露时间及剥蚀速率和剥蚀厚度[J].石油大学学报(自然科学版),2004,28(1):1-4.LI Chu-hua,JI You-liang,ZHANG Shi-qi,et al.Application of the cosmogenic nuclides and assessment of exposure period with erosion rate and thickness[J].Journal of the University of Petroleum,China,2004,28(1):1-4.
    [4]王成虎,郭启良,丁立丰,等.工程区高地应力判据研究及实例分析[J].岩土力学,2009,30(8):2359-2364.WANG Cheng-hu,GUO Qi-liang,DING Li-feng,et al.High in-situ stress criteria for engineering area and a case analysis[J].Rock and Soil Mechanics,2009,30(8):2359-2364.
    [5]章奇锋,周春宏,周辉,等.锦屏II水电站辅助洞岩爆灾害评价及对策研究[J].岩土力学,2009,30(增2):422-427.ZHANG Qi-feng,ZHOU Chun-hong,ZHOU Hui,et al.Research on rock burst estimation and control measures for auxiliary tunnels in Jinping II Hydropower Station[J].Rock and Soil Mechanics,2009,30(Supp.2):422-427.
    [6]朱焕春,陶振宇.不同岩石中地应力分布[J].地震学报1994,16(1):49-63.ZHU Huan-chun,TAO Zhen-yu.In-situ stress distribution in different rocks[J].Acta Seismologica Sinica,1994,16(1):49-63.
    [7]景锋.中国大陆浅层地壳地应力场分布规律及工程扰动特征研究[博士学位论文D].武汉:中国科学院武汉岩土力学研究所,2008.
    [8]SHANG Yan-jun,PARK Hyeong-dong,SHI Yong-yue,et al.Some large values of in-situ stress and related engineering geological problems in China[J].Geosciences Journal,2010,14:135-153.
    [9]赵德安,陈志敏,蔡小林,等.中国地应力场分布规律统计分析[J].岩石力学与工程学报,2007,26(6):1265-1271.ZHAO De-an,CHEN Zhi-min,CAI Xiao-lin,et al.Analysis of distribution rule of geostress in China[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(6):1265-1271.
    [10]吴树仁,王曙.地质词典(二)矿物岩石地球化学分册[M].北京:地质出版社,1981.
    [11]SHANG Yan-jun,PARK Hyeong-dong,YUAN Guang-xiang,et al.From in situ stress and discontinuities to the strength of granites:Comparison and case study[J].Geosciences Journal,2008,12(4):361-372.
    [12]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1981.
    [13]BROWN E T,HOEK E.Trends in relationships between measured in-situ stresses and depth[J].Int.J.Rock Mech.Min.Sci.&Geomech.Abstr.,1978,15:211-215.
    [14]LINDER E N,HAIPERN J A.In-situ stress in north America:A compilation[J].Int.J.Rock Mech.Min.Sci.,1978,15(Special issue):1-14.
    [15]吴满路,廖椿庭,袁嘉音.荒沟蓄能电站地下厂房地应力状态与工程稳定性研究[J].地球学报,2002,23(3):263-268.WU Man-lu,LIAO Chun-ting,YUAN Jia-yin.A study of stress state and engineering stability of underground houses at the Huanggou Pumped Storage Power Station[J].Acta Geoscientia Sinica,2002,23(3):263-268.
    [16]吴满路,李国俊,廖椿庭.辽宁蒲石河抽水蓄能电站地应力测量研究[J].地质力学学报,2006,12(2):191-196.WU Man-lu,LI Guo-jun,LIAO Chun-ting.Measure-ments of in-situ stress in the Pushihe Hydropower Station,Liaoning[J].Journal of Geomechanics,2006,12(2):191-196.
    [17]PINE R J,TUNBRDGE L W,MERRIFIFLD C M.In-situ stress measurement in the Carnmenells Granite:Overcording tests at south Croftg mines at a depth of 790 m[J].Int.J.Rock Mech.Min.Sci.,1983,20(2):54-62.
    [18]KANAGAWA T,HIBINO S,ISHIDA T,et al.In-situ stress measurements in the Japanese island:Over-coring results from a multi-elements gauge used at 23 sites[J].Int.J.Rock Mech.Min.Sci.,1986,23(1):29-39.
    [19]薛玺成,郭怀志,马启超.岩体高地应力及其分析[J].水利学报,1987,28(3):52-58.XUE Xi-cheng,GUO Huai-zhi,MA Qi-chao.High in-situ stress in rock mass and analysis[J].Journal of Hydraulic Engineering,1987,28(3):52-58.
    [20]姚宝魁,张承娟.三山岛金矿区地应力场特性研究工程地质学报[J].1995,3(2):21-28.YAO Bao-kui,ZHANG Cheng-juan.Research on characteristics of field stress in Sanshandao gold mine area[J].Journal of Engineering Geology,1995,3(2):21-28.
    [21]刘允芳,龚壁新,肖本职,等.广州抽水蓄能电站地下厂房地应力场分析[J].长江科学院院报,1990(4):45-53.LIU Yun-fang,GONG Bi-xin,XIAO Ben-zhi,et al.Analyses of ground stress field in underground excavation of Guangzhou Pumped Storage Power Station[J].Journal of Yangtze River Scientific Research Institute,1990,(4):45-53.
    [22]刘允芳,龚壁新,肖本职.三峡工程船闸区地应力场初探[J].长江科学院院报,1992,29:77-98.LIU Yun-fang,GONG Bi-xin,XIAO Ben-zhi.A preliminary exploration of in-situ stress field for the lock area of the Three Gorges Project[J].Journal of Yangtze River Scientific Research Institute,1992,29:77-98.
    [23]陈强,朱宝龙,胡厚田.岩石Kaiser效应测定地应力场的试验研究[J].岩石力学与工程学报,2006,25(7):1370-1376.CHEN Qiang,ZHU Bao-long,HU Hou-tian.Experimental research on measurement of in-situ stress field by Kaiser effect[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(7):1370-1376.
    [24]PINE R J,LEDINGHAM P,MERRIFIFLD C M.In-situ stress measurement in the Carnmenells Granite:Hydrofracture tests at Rosemanowes Quarry to depth of 2 000 m[J].Int.J.Rock Mech.Min.Sci.,1983,20(2):63-72.
    [25]RUMMEL F,BAUGARTNER J,AIHEID H J.Hydraulic fracturing stress measurements at the east side of southwest fault block in Germany[C]//ZOBACK M D,HAIMSON B C.Hydraulic Fracturing Stress Measurements.Washington D C:National Academy Press,1983:3-17.
    [26]ZHAO Jian,HEFNY A M,ZHOU Ying-xin.Hydrofracturing in situ stress measurements in Singapore granite[J].Int.J Rock Mech.Min.Sci.,2005,42:577-583.
    [27]HAST N.Determination of the state of stresses in the upper part of the Earth’s crust[J].Tectonophysics,1973,73,12(2):169-211.
    [28]龚壁新,陈彦生,罗超文.广州抽水蓄能电站厂区地应力测定及分析[J].长江科学院学报,1988,18(4):38-49.GONG Bi-xin,CHEN Yan-sheng,LUO Chao-wen.In-situ stress measurement and analysis at the Guangzhou Pumped Storage Power Station[J].Journal of Yangtze River Scientific Research Institute,1988,18(4):38-49.
    [29]安其美,丁立丰,王海忠.福建周宁水电站水压致裂地应力测量及其应用[J].岩土力学,2004 25(10):1672-1676.AN Qi-mei,DING Li-feng,WANG Hai-zhong.Research of crust stress measurement and its application with hydraulic fracturing in Zhouning Hydropower Station of Fujian Province[J].Rock and Soil Mechanics,2004,25(10):1672-1676.
    [30]侯砚和,孙炜锋,陈群策.我国某地下油库预可行性研究地应力测量及其应用分析[J].地质力学学报,2006,12(2):197-202.HOU Yan-he,SUN Wei-feng,CHEN Qun-ce.In-situ stress measurement and its application in the pre-feasibility study of an underground oil reservoir in China[J].Journal of Geomechanics,2006,12(2):197-202.
    [31]尹健民,陈礼伟,钟作武.某高速公路隧道区水压致裂地应力测量与分析[J].岩石力学与工程学报,2001 20(增):1827-1830.YIN Jian-min,CHEN Li-wei,ZHONG Zuo-wu.Measurement and interpretation on in-situ stresses with hydro-fracturing in a highway tunnel site[J].Chinese Journal of Rock Mechanics and Engineering,2001,20(Supp.):1827-1830.
    [32]李方全,张伯崇,苏恺之.三峡坝区水库诱发地震研究-茅坪钻孔的现场测试与分析[M].北京:地震出版社,1993.
    [33]吴满路,廖椿庭.大茅隧道地应力测量及围岩体稳定性研究[J].地质力学学报,2000,6(2):71-76.WU Man-lu,LIAO Chun-ting.Stress measurements and study of stability of the Damao Tunnel[J].Journal of Geomechanics,2000,6(2):71-76.
    [34]谭成轩,王成虎.中微子试验室场址钻孔地应力测试报告[R].北京:中国地质科学院地质力学所,2006.
    [35]孙世宗,高建理,丁健民,等.广州抽水蓄能电站水压致裂应力测量[J].岩石力学与工程学报,1991,10(4):374-381.SUN Shi-zong,GAO Jian-li,DING Jian-min,et al.Hydraulic fracturing in-situ stress measurement at the Guangzhou Pumped Storage Power Station[J].Chinese Journal of Rock Mechanics and Engineering,1991,10(4):374-381.
    [36]郭启良,安其美,赵仕广.水压致裂应力测量在广州抽水蓄能电站设计中的应用研究[J].岩石力学与工程学报,2002,21(6):828-832.GUO Qi-liang,AN Qi-mei,ZHAO Shi-guang.Application of hydraulic fracturing test in the design of Guangzhou Pump Storage Project[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(6):828-832.
    [37]吴满路,张春山,廖椿庭.青藏高原腹地现今地应力场测量与应力状态研究[J].地球物理学报,2005,48(2):327-332.WU Man-lu,ZHANG Chun-shan,LIAO Chun-ting.The recent state of stress in the central Qinghai-Tibet Plateau according to in-situ stress measurements[J].Chinese Journal of Geophysics,2005,48(2):327-332
    [38]张春山,吴满路,廖椿庭,等.西藏羊八井地区现今地应力测量结果与应力状态分析[J].地球物理学报,2007,50(2):517-522.ZHANG Chun-shan,WU Man-lu,LIAO Chun-ting,et al.The result of current stress measurements and stress state in the region of Yangbajing-Kangmar in Tibet[J].Chinese Journal of Geophysics,2007,50(2):517-522.
    [39]广东省地质局.区域地质报告(惠阳幅和宝安幅)(1:200000)[R].广州:广东省地质局,1965.
    [40]史永跃,尚彦军,袁广祥,等.大亚湾中微子地下试验室场地的工程地质条件评价[J].工程地质学报,2007,15(3):328-337.SHI Yong-yue,SHANG Yan-jun,YUAN Guang-xiang,et al.Evaluation of engineering geological condition of Daya Bay for sitting laboratory of Neutrino underground experiment[J].Journal of Engineering Geology,2007,15(3):328-337.
    [41]向芳,李志宏,王成善,等.鄂西黄陵穹隆三斗坪地区新生代隆升特征研究[J].地质学报,2009,83(9):1247-1254.XIANG Fang,LI Zhi-hong,WANG Cheng-shan,et al.Cenozoic uplift characteristics of Shandouping Section of Huangling Dome in the west of Hubei Province[J].Acta Geologica Sinica,2009,83(9):1247-1254.

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