秦巴地区地壳稳定性评价
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摘要
三峡水库引水工程是南水北调的重要补充工程,具有重要的战略意义和经济意义。本文在分析现今构造应力场、地壳结构、构造格架、活动断裂、地震活动、工程岩组等影响地壳稳定性主要因素的基础上,利用模糊数学综合评价模型评价秦巴地区的地壳稳定性。评价结果表明,秦巴地区地壳稳定性程度较高,适合兴建大型引水工程。
The Three Gorges reservoir water-diversion project is a new line of the southnorth water-diversion project.There are six major factors affecting the crustal stability in the region:crustal structure,present tectonic stress fields,tectonic framework,fault activity,earthquake activity and rock properties.The authors select dominant conditions affecting regional crust stability as evaluating factors to construct a fuzzy evaluation model.Based on the above-mentioned six factors and by using the fuzzy evaluation model,the authors evaluate the crustal stability of the Qinling-Daba region.The results show that the Qinling-Daba region has a higher degree of crustal stability and is and suitable for the large water diversion project.
The Three Gorges reservoir water-diversion project is a new line of the southnorth water-diversion project.There are six major factors affecting the crustal stability in the region:crustal structure,present tectonic stress fields,tectonic framework,fault activity,earthquake activity and rock properties.The authors select dominant conditions affecting regional crust stability as evaluating factors to construct a fuzzy evaluation model.Based on the above-mentioned six factors and by using the fuzzy evaluation model,the authors evaluate the crustal stability of the Qinling-Daba region.The results show that the Qinling-Daba region has a higher degree of crustal stability and is and suitable for the large water diversion project.
引文
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[3]吴树仁,陈庆宣,徐瑞春,梅应堂,石玲.鄂西清江流域及邻区地壳稳定性性评价[J].地球学报,1996,17(1):1~10.
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[5]孙叶,谭成轩,杨贵生,王瑞江.中国区域地壳稳定性定量化评价与分区[J].地质力学学报,1997,3(3):42~52.
[6]吴树仁,韩金良,石菊松,张永双,何锋.区域地壳稳定性研究现状和发展趋势[J].工程地质学报,2004,Suppl:26~30.
[7]易明初,胡海涛,殷跃平,彭华.发扬李四光“安全岛”思想,认真做好工程建设地区的区域地壳稳定性评价研究工作[J].地质力学学报,2006,12(2):105~118.
[8]张国伟,张本仁,袁学诚,肖庆辉.秦岭造山带与大陆动力学[M].北京,科学出版社,2001.
[9]韩金良,吴树仁,谭成轩,孙炜峰,张春山,丁原辰,等.东秦岭东江口花岗岩体水压致裂法与AE法地应力测量对比研究[J].岩石力学与工程学报,2007,26(1):83~86.
[2]吴树仁,张永双,韩金良,石菊松,何锋,谭成轩.三峡水库引水工程秦巴段工程地质条件研究[J].地球学报,2006,27(5):487~494.
[3]吴树仁,陈庆宣,徐瑞春,梅应堂,石玲.鄂西清江流域及邻区地壳稳定性性评价[J].地球学报,1996,17(1):1~10.
[4]殷跃平,胡海涛,康宏达.区域地壳稳定性评价专家系统研究[J].地质论评,1996,42(2):174~186.
[5]孙叶,谭成轩,杨贵生,王瑞江.中国区域地壳稳定性定量化评价与分区[J].地质力学学报,1997,3(3):42~52.
[6]吴树仁,韩金良,石菊松,张永双,何锋.区域地壳稳定性研究现状和发展趋势[J].工程地质学报,2004,Suppl:26~30.
[7]易明初,胡海涛,殷跃平,彭华.发扬李四光“安全岛”思想,认真做好工程建设地区的区域地壳稳定性评价研究工作[J].地质力学学报,2006,12(2):105~118.
[8]张国伟,张本仁,袁学诚,肖庆辉.秦岭造山带与大陆动力学[M].北京,科学出版社,2001.
[9]韩金良,吴树仁,谭成轩,孙炜峰,张春山,丁原辰,等.东秦岭东江口花岗岩体水压致裂法与AE法地应力测量对比研究[J].岩石力学与工程学报,2007,26(1):83~86.
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