全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
地球学报  2010 

山西盆地现今地应力状态与地震危险性分析

DOI: 10.3975/cagsb.2010.04.06

Keywords: 山西盆地,水压致裂,地应力测量,应力状态,库伦破裂准则

Full-Text   Cite this paper   Add to My Lib

Abstract:

在山西盆地南北两端4个地区共计13个深钻孔中进行了水压致裂地应力测量,获得了现今地应力的大小、方向和分布规律。在盆地北端五台山、雁门关地区400~600m深度内,实测最大水平主应力值为8~12MPa。而南端临汾、运城地区则具有较高的构造应力,在400~500m深度内实测最大水平主应力值为20~28Mpa。地应力“南高北低”比较明显。运用这些实测的地应力资料,根据库仑摩擦滑动准则,对研究区内断裂的稳定性进行了力学分析。分析结果表明,总体来看,目前五台山、雁门关和临汾地区的水平主应力都未达到断层活动的临界值;运城地区已接近断层活动临界值的下限,若计入孔隙压力的影响因素,运城地区最大水平主应力已达到逆断层活动的临界值。从地应力的角度分析认为该区发生地震的潜在危险性较大,这一现象值得关注和研究。

References

[1]  ZHANG Bo-chong,Pore pressure,fault slip criterion and influence of resevoir impounding,北京:地震出版社,1996.
[2]  谢富仁;崔效峰;赵建涛;陈群策 李宏,中国大陆邻区现代构造应力场分区,地球物理学报,2004(04).
[3]  吴满路;张春山;廖椿庭;马寅生 区明益.青藏高原腹地现今地应力测量与应力状态研究[J].地球物理学报,2005(02)
[4]  安其美;孙东生,山西省运城市解州-陌南高速公路隧道地应力测量分析报告,北京:中国地质科学院地质力学研究所,2009.
[5]  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(03)
[6]  刘明清;祝治平;方盛明;刘明军 张建狮 虎喜凤 杨清 刘敏 啜永清 景呈国.山西中南部地区地壳深部地球物理场异常与地震[J].地震学报,1999(03)
[7]  李学新,山西多字形盆地的成因及其地震危险性探讨,1988.
[8]  李方全;孙世宗;李立球,华北及郯庐断裂带地应力测量,岩石力学与工程学报,1982(01).
[9]  李方全,断层活动与原地应力状态,北京:地震出版社,1994.
[10]  国家地震局,中国岩石圈动力学地图集,北京:中国地图出版社,1989.
[11]  崔作舟;尹周勋;高恩元;卢德源 傅维洲,青藏高原地壳结构构造及其与地震的关系,地球学报,1990(02).
[12]  ZOBACK M D;HICKMAN S,In-Situ Study of the Physical Mechanisms Controlling Induced Seismicity at Monticello Reservoir,South Caroling,J Geophys ges,1982(B8).
[13]  ZOBACK M D;HEALY J H,In-situ stress measurements to 3.5 km depth in the Cajon.Pass Scientific Research Borehole:implications for the mechanics of crustal faulting,Journal of Geophysical Research,1992(B4).
[14]  ZOBACK M L,First-and second-order patterns of stress in the lithosphere:the world stress map project,Journal of Geophysical Research,1992(B8).
[15]  ZHANG Jing-shou,The State of the in situ Stress and the Evaluation of the Stability of area in ShenZheng,Acta Geoscientica Sinica,1994(01).
[16]  XIE Fu-ren;CUI Xiao-feng;ZHAO Jian-tao;CHEN Qun-ce LI Hong,Rggional Division of the Recent Tectonic Stress Field in China and Adjacent Aeras,Chinese Journal of Geophysics,2004(04).
[17]  WU Man-lu;ZHANG Chun-shan;LIAO Chun-ting;MA Yin-sheng OU Ming-yi,The recent state of stress in the central Qinghai--Tibet Plateau according to in-situ stress measureme,Chinese Journal of Geophysics,2005(02).
[18]  WU Man-lu;LIAO Chun-ting;YUAN Jia-yin,A Study of Stress State and Engineering Stability of Underground House at the Huanggou Accumulation Power Station,Acta Geoscientica Sinica,2002(03).
[19]  State Seismological Bureau,Lithospheric Dynamics Atlas of China,北京:中国地图出版社,1989.
[20]  LIU Ming-qing;ZHU Zhi-ping;FANG Sheng-ming;LIU Ming-jun,Earthquake and geophysical field abnormal at deep crust in the middle and south parts of Shanxi,Acta Seismologica Sinica,1999(03).
[21]  LI Xue-xin,Disscuss on the genesis of Shanxi Duozi-type basains and its seismic hazards,1988.
[22]  LI Fang-quan;SUN Shi-zong;LI Li-qiu,In-situ stress measurements in North China and Tancheng-Lujiang fault zone,Chinese Journal of Rock Mechanics and Engineering,1982(01).
[23]  LI Fang-quan,Fault activity and in situ stress state,北京:地震出版社,1994.
[24]  CUI Zuo-zhou;YIN Zhou-xun;GAG En-yuan;LU De-yuan FU Wei-zhou,The structure and tectonics of the crust and their relation with earthquakes in the Qinghai-Xizhang plateau,Acta Geoscientica Sinica,1990(02).
[25]  BYERLEE J D,Friction of rock,Pure and Applied Geophysics,1978(415).
[26]  AN Qi-mei;SUN Dong-sheng,Report on the study of in situ stress measurements for Xiezhou-Monan high way tunnel in Shanxi Province,Beijing:Institute of Geomechanics,CAGS,2009.
[27]  N Qi-mei;DING Li-feng;WANG Hai-zhong;ZHAO Shi-guang.Research of property and activity of Longmen Mountain fault zone[J].Journal of Geodesy and Geodynamics,2004(02)
[28]  张景寿,深圳地应力状态及其稳定性评价,地球学报,1994(01).
[29]  张伯崇,孔隙压力、断层滑动准则和水库蓄水的影响,北京:地震出版社,1996.
[30]  安其美;丁立丰;王海忠;赵什广.龙门山断裂带的性质与活动性研究[J].大地测量与地球动力学,2004(02)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133