安县西部地震次生地质灾害及工程地质力学问题思考
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摘要
2008年5月12日,发生于四川省汶川县的8.0级大地震已造成近7万同胞罹难,举国同哀。通过地震次生地质灾害的调查和深入思考,认为工程地质力学可以而且应该在抗震救灾和灾后重建中发挥重要作用。通过安县西部的初步考察发现,考察区内的地震次生地质灾害主要有顺层滑坡、坡积层滑坡、陡崖崩塌、滚石等。根据岩体工程地质力学的观点,地质结构面是考察区内地质灾害发生的重要控制性因素。在灾后重建阶段,必须要考虑重建选址、地质灾害监测、地质灾害防治等方面的工程地质力学问题。
The Wenchuan large earthquake of 8.0 magnitude has shocked Sichuan Province and neighboring regions on May 12,2008,with nearly seventy thousands of lives lost and the whole country immersing in deep sorrow.Based on field survey and analysis of earthquake-induced geological hazards,the engineering geomechanics should be considered and used to play important roles in the relief and reconstruction after the earthquake.According to preliminary investigation into western mountainous areas of Anxian County,several kinds of geological hazards are recognized,mainly including bedding landslide,loose materials landslide,cliff collapses and rockfalls.The field investigations indicate that the geological structural planes in rock masses or geological masses may be important dominant factors for generation of geological hazards in the investigated area.For the reconstruction of the disastrous areas,some engineering geomechanical problems relevant to choices of reconstruction site,monitoring,prevention and remedy of geological hazards,and so on,should be considered.
The Wenchuan large earthquake of 8.0 magnitude has shocked Sichuan Province and neighboring regions on May 12,2008,with nearly seventy thousands of lives lost and the whole country immersing in deep sorrow.Based on field survey and analysis of earthquake-induced geological hazards,the engineering geomechanics should be considered and used to play important roles in the relief and reconstruction after the earthquake.According to preliminary investigation into western mountainous areas of Anxian County,several kinds of geological hazards are recognized,mainly including bedding landslide,loose materials landslide,cliff collapses and rockfalls.The field investigations indicate that the geological structural planes in rock masses or geological masses may be important dominant factors for generation of geological hazards in the investigated area.For the reconstruction of the disastrous areas,some engineering geomechanical problems relevant to choices of reconstruction site,monitoring,prevention and remedy of geological hazards,and so on,should be considered.
引文
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[11]张路青,杨志法.公路沿线遭遇滚石的风险分析——案例研究[J].岩石力学与工程学报,2004,23(21):3 700-3 708.(ZHANG Luqing,YANG Zhifa.Risk analysis of encountering rockfalls on a highway—a case study[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(21):3 700-3 708.(in Chinese))
[12]杨志法.工程地质力学综合集成理论及其应用[J].中国学术期刊文摘,1995,(2):72-73.(YANG Zhifa.EGMS theory and its applications[J].Chinese Science Abstracts,1995,(2):72-73.(in Chinese))
[13]刘大安,杨志法,尚彦军,等.工程地质力学综合集成理论及其在五强溪水电站船闸边坡上的应用[J].水文地质工程地质,1997(,2):19-23.(LIU Daan,YANG Zhifa,SHANG Yanjun,et al.Engineering geomechanics meta-synthetic theory(EGMS)and its application to the shiplock slope of Wuqiangxi hydropower station[J].Hydrogeology and Engineering Geology,1997,(2):19-23.(in Chinese))
[14]杨志法,刘大安,刘英,等.关于综合地质信息系统的设计及应用研究[J].岩石力学与工程学报,1999,18(增):1 226-1 229.(YANG Zhifa,LIU Daan,LIU Ying,et al.Design and application of synthetic geological information system[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(Supp.):1 226-1 229.(in Chinese))
[2]四川省地质局第二区域地质测量队.区域地质测量报告(1∶200 000)绵阳幅[R].成都:四川省地质局第二区域地质测量队,1970.(The Second Geological Measurement Team of Sichuan Geological Bureau.Report of regional geological measurement of Mianyang City(1∶200 000)[R].Chengdu:The Second Geological Measurement Team of Sichuan Geological Bureau,1970.(in Chinese))
[3]四川省地质局.区域地质调查报告(1∶200 000)茂汶幅、灌县幅[R].成都:四川省地质局,1975.(Sichuan Geological Bureau.Report of regional geological survey—Maowen and Guanxian(1∶200 000)[R].Chengdu:Sichuan Geological Bureau,1975.(in Chinese))
[4]谷德振.岩体工程地质力学基础[M].北京:科学出版社,1979.(GU Dezhen.Basis of rock engineering geology geomechanics[M].Beijing:Science Press,1979.(in Chinese))
[5]王亮亮,孟祥麟,林梦叶,等.科学选址,重建第一步[N].环球时报,2008-06-06(19).(WANG Liangliang,MENG Xianglin,LIN Mengye,et al.Scientific site selectiont,he first step of reconstruction[N].Global Times,2008-06-06(19).(in Chinese))
[6]杨志法,齐俊修,刘大安,等.岩土工程监测技术及监测系统问题[M].北京:海洋出版社,2004.(YANG Zhifa,QI Junxiu,LIU Daan,et al.Monitoring techniques of geotechnical engineering and monitoring system problems[M].Beijing:China Ocean Press,2004.(in Chinese))
[7]杨志法,张路青,祝介旺.四项边坡加固新技术[J].岩石力学与工程学报,2005,24(21):3 828-3 834.(YANG Zhifa,ZHANG Luqing,ZHU Jiewang.Four new techniques in slope reinforcement[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(21):3 828-3 834.(in Chinese))
[8]曾庆利,岳中琦,杨志法,等.谷坊在泥石流防治中的作用——以云南蒋家沟2条支沟的对比为例[J].岩石力学与工程学报,2005,24(17):3 137-3 145.(ZENG Qingli,YUE Zhongqi,YANG Zhifa,et al.Functions of check dam against debris flow:comparison of two watersheds of Jiangjia Gully,Yunnan,China[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(17):3 137-3 145.(in Chinese))
[9]杨志法,张路青,尚彦军.两个值得关注的工程地质力学问题[J].工程地质学报,2002,10(1):10-14.(YANG Zhifa,ZHANG Luqing,SHANG Yanjun.Two engineering geomechanics subjects to be worth paying close attention[J].Journal of Engineering Geology,2002,10(1):10-14.(in Chinese))
[10]张路青,许兵,尚彦军,等.川藏公路南线八宿—林芝段滚石灾害的工程地质调查与评价[J].岩石力学与工程学报,2004,23(9):1 551-1 557.(ZHANG Luqing,XU Bing,SHANG Yanjun,et al.Engineering geological investigation and assessment on rockfall hazard along Basu—Linzhi section of south line of Sichuan—Tibet Highway[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(9):1 551-1 557.(in Chinese))
[11]张路青,杨志法.公路沿线遭遇滚石的风险分析——案例研究[J].岩石力学与工程学报,2004,23(21):3 700-3 708.(ZHANG Luqing,YANG Zhifa.Risk analysis of encountering rockfalls on a highway—a case study[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(21):3 700-3 708.(in Chinese))
[12]杨志法.工程地质力学综合集成理论及其应用[J].中国学术期刊文摘,1995,(2):72-73.(YANG Zhifa.EGMS theory and its applications[J].Chinese Science Abstracts,1995,(2):72-73.(in Chinese))
[13]刘大安,杨志法,尚彦军,等.工程地质力学综合集成理论及其在五强溪水电站船闸边坡上的应用[J].水文地质工程地质,1997(,2):19-23.(LIU Daan,YANG Zhifa,SHANG Yanjun,et al.Engineering geomechanics meta-synthetic theory(EGMS)and its application to the shiplock slope of Wuqiangxi hydropower station[J].Hydrogeology and Engineering Geology,1997,(2):19-23.(in Chinese))
[14]杨志法,刘大安,刘英,等.关于综合地质信息系统的设计及应用研究[J].岩石力学与工程学报,1999,18(增):1 226-1 229.(YANG Zhifa,LIU Daan,LIU Ying,et al.Design and application of synthetic geological information system[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(Supp.):1 226-1 229.(in Chinese))
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