ANALYSIS ON CHARACTERISTICS OF TECTONIC STRESS FIELD AND THE GEODYNAMIC ENVIRONMENT IN THE YANGTZE RIVER ECONOMIC BELT
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摘要: 综合已有的研究成果，根据长江经济带活动构造块体和构造应力场的分布特征进行了构造应力场分区，总体上划分为华北应力分区、华南应力分区以及青藏高原应力分区，其中华南应力分区是长江经济带的主体应力分区。在此基础上，根据长江经济带的活动断裂及构造块体划分建立了有限元网格模型，利用二维有限元对长江经济带的构造应力场进行模拟，并分析了长江经济带的动力学环境。研究表明，长江经济带构造应力场受印度板块、太平洋板块和菲律宾板块联合作用控制，印度板块与欧亚板块的碰撞作用决定了长江经济带总体构造应力场的主要趋势，局部区域受到周边构造环境的影响；东南部处于菲律宾板块向欧亚板块俯冲所诱发的拉张环境，表现为冲绳海槽，西南部受印度板块北移所诱发的缅甸板块的剪切拉张作用，表现为实皆断裂及其西侧的缅甸中央盆地；青藏高原东缘物质横向挤出过程中受到太平洋板块和菲律宾板块的联合俯冲作用，对长江经济带地应力场的分布特征产生重要影响。Abstract: According to existing research results, the tectonic stress field in the Yangtze River Economic Belt is divided into different zones based on active blocks and characteristic of tectonic stress field, respectively as the North China stress zone, the Southern China stress zone and the Qinghai-Tibet plateau stress zone. The South China stress zone is the major part of the Yangtze River economic belt. Based on that, we established a two-dimensional finite element model according to the active faults and tectonic blocks in the Yangtze River Economic Belt to simulate the tectonic stress and to analyze the geodynamic environment of the Yangtze River Economic Belt. The result shows that the tectonic stress field of the Yangtze River Economic Belt is combined controlled by the India plate, Pacific plate and Philippines sea plate. Collision between India plate and the Eurasian plate determines the overall trend of the stress field, and local areas also are affected by the surrounding tectonic environment. Southeast China is effected by the stretching environment of Okinawa Trough produced by Philippines plate subducting to Eurasian plate, Southwest China is effected by the northward moving of the India plate inducing shear and tension of Burma plate and resulting of Sagaing fault and western of Burma central basin, material of eastern Qinghai-Tibet Plateau in the transverse extrusion process is controlled by the joint subduction of the Pacific plate and Philippines plate, and has important influence for the distribution characteristics of the crustal stress field in the Yangtze River Economic Belt.
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图 3 长江经济带构造应力场最大主压应力模拟结果
Ⅰ-华北应力区；Ⅱ-华南应力区；Ⅲ-长江经济带西部应力区
Figure 3. Simulated result of maximum principal stress in Yangtze River Economic Belt
表 2 边界施加载荷
Table 2. Loading on boundary
边界 载荷/N x方向 y方向 AB段 0 0 BC段中北段 -300000 -80000 BC段南段 300000 100000 CD段东段 300000 100000 CD段西段 -500000 200000 DE段 -500000 200000 EF段东段 -300000 500000 EF段西段 -300000 800000 FG段 -1500000 2500000 GH段 5000000 -3000000 HI段 7000000 -3000000 IA段 10000000 10000000 
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表 3 模型岩石物性参数
Table 3. Physical property parameters of rocks in model
块体 杨氏模量/MPa 泊松比 西部块体(a) 70000 0.3 东部块体(b) 50000 0.3 活动断裂发育带(c) 7000 0.3
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[1] 杜兴信, 邵辉成.由震源机制解反演中国大陆现代构造应力场[J].地震学报, 1999, 21(4):18~24. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB904.002.htmDU Xing-xin, SHAO Hui-cheng. Modern tectonic stress field in the Chinese mainland inversed from focal mechanism solutions[J]. Acta Seismologica Sinica, 1999, 21(4):18~24. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB904.002.htm [2] 汪素云, 陈培善.中国及邻区现代构造应力场的数值模拟[J].地球物理学报, 1980, 23(1):35~45. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX198001004.htmWANG Su-yun, CHEN Pei-shan. Simulation of tectonic stress field in the Chinese continent and adjacent areas[J]. Chinese Journal of Geophysics, 1980, 23(1):35~45. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX198001004.htm [3] 徐纪人, 赵志新.中国岩石圈应力场与构造运动区域特征[J].中国地质, 2006, 33(4):782~792. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDW200610001370.htmXU Ji-ren, ZHAO Zhi-xin. Regional characteristics of the lithospheric stress field and tectonic motions in china and its adjacent areas[J]. Geology in China, 2006, 33(4):782~792. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDW200610001370.htm [4] 陈连旺, 杨树新, 谢富仁, 等.中国大陆构造应力应变场现今年变化特征的数值模拟[J].中国地震, 2005, 21(3):341~349. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD200503004.htmCHEN Lian-wang, YANG Shu-xin, XIE Fu-ren, et al. Numerical simulation on annual change patterns of present-day tectonic stress-strain field on the Chinese mainland[J]. Earthquake Research in China, 2005, 21(3):341~349. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD200503004.htm [5] 崔效锋, 谢富仁, 赵建涛.中国及邻区震源机制解的分区特征[J].地震地质, 2005, 27(2):298~307. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200502011.htmCUI Xiao-feng, XIE Fu-ren, ZHAO Jian-tao. The regional characteristicsof focalmechanism solutions in china and its adjacent areas[J]. Seismology and Geology, 2005, 27(2):298~307. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200502011.htm [6] 吴云, 帅平, 周硕愚, 等.用GPS观测结果对中国大陆及邻区现今地壳运动和形变的初步探讨[J].地震学报, 1999, 21(5):545~553. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB199905010.htmWU Yun, SHUAI Ping, ZHOU Shuo-yu, et al. Current crustal motion and deformation in the China continent and its surrounding area determined form GPS data[J]. Acta Seismologica Sinica, 1999, 21(5):545~553. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB199905010.htm [7] 谢富仁, 陈群策, 崔效锋, 等.中国大陆地壳应力环境基础数据库[J].地球物理学进展, 2007, 22(1):131~136. http://www.cnki.com.cn/Article/CJFDTOTAL-DKXB200404020.htmXIE Fu-ren, CHEN Qun-ce, CUI Xiao-feng, et al. Fundamental database of crustal stress environment in continental China[J]. Progress in Geophys, 2007, 22(1):131~136. http://www.cnki.com.cn/Article/CJFDTOTAL-DKXB200404020.htm [8] 杨树新, 姚瑞, 崔效锋, 等.中国大陆与各活动地块、南北地震带实测应力特征分析[J].地球物理学报, 2012, 55(12):4207~4217. doi: 10.6038/j.issn.0001-5733.2012.12.032YANG Shu-xin, YAO Rui, CUI Xiao-feng, et al. Analysis of the characteristics of measured stress in Chinese mainland and its active blocks and North-South seismic belt[J]. Chinese Journal of Geophysics, 2012, 55(12):4207~4217. doi: 10.6038/j.issn.0001-5733.2012.12.032 [9] 范桃园, 龙长兴, 杨振宇, 等.中国大陆现今地应力场黏弹性球壳数值模拟综合研究[J].地球物理学报, 2012, 55(4):1249~1260. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201204021.htmFAN Tao-yuan, LONG Chang-xing, YANG Zhen-yu, et al. Comprehensive modeling on the present crustal stress of China mainland with the viscoelastic spherical shell[J]. Chinese Journal of Geophysics, 2012, 55(4):1249~1260. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201204021.htm [10] 李延兴, 李智, 张静华, 等.中国大陆及周边地区的水平应变场[J].地球物理学报, 2004, 47(2):222~231. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200402007.htmLI Yan-xing, LI Zhi, ZHANG Jing-hua, et al. Horizontal strain field in the Chinese mainland and its surrounding areas[J]. Chinese Journal of Geophysics, 2004, 47(2):222~231. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200402007.htm [11] 鄢家全, 时振梁, 汪素云, 等.中国及邻区现代构造应力场的区域特征[J].地震学报, 1979, 1(1):9~24. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB197901001.htmYAN Jia-Quan, SHI Zhen-Liang, WANG Su-Yun, et al. Some features of the recent tectonic stress field of China and environs[J]. Acta Seismologica Sinica, 1979, 1(1):9~24. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB197901001.htm [12] 熊熊, 滕吉文.青藏高原东缘地壳运动与深部过程的研究[J].地球物理学报, 2002, 45(4):507~515. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200204007.htmXIONG Xiong, TENG Ji-wen. Study on crustal movement and deep process in eastern Qinghai-Xizang plateau[J]. Chinese Journal of Geophysics, 2002, 45(4):507~515. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200204007.htm [13] 丁旭初, 张文涛.中国大陆东部现今构造应力状态[J].地震学报, 1988, 10(1):25~38. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198801002.htmDING Xu-chu, ZHANG Wen-tao. State of modern tectonic stress field in East China mainland[J]. Acta Seismologica Sinica, 1988, 10(1):25~38. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198801002.htm [14] 叶定衡, 王新政, 赵玉敏.中国新构造运动基本特征[J].中国地质科学院地质力学研究所所刊, 1995, 16:77~84. http://www.cnki.com.cn/Article/CJFDTOTAL-DZLX199400007.htmYE Ding-heng, WANG Xin-zheng, ZHAO Yu-min. Neotectonics in China[J]. Bulletin of the Institute of Geomechanics, Chinese Academy of Geological Sciences, 1995, 16:77~84. http://www.cnki.com.cn/Article/CJFDTOTAL-DZLX199400007.htm [15] 夏瑞良.安徽区域地震应力场的分布特征[J].地震地质, 1985, 7(3):13~22. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ198503002.htmXIA Rui-liang. Characteristic distribution of regional seismic stress field in Anhui Province[J]. Seismology and Geology, 1985, 7(3):13~22. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ198503002.htm [16] 李玶, 汪良谋.云南川西地区地震地质基本特征的探讨[J].地质科学, 1975, (4):308~326. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX197504001.htmLI Ping, WANG Liang-mou. Discussion on the basic characteristics of seismotectonics in Yunnan-Sichuan region[J]. Scientia Geologica Sinica, 1975, (4):308~326. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX197504001.htm [17] 阚荣举, 张四昌, 晏凤桐, 等.我国西南地区现代构造应力场与现代构造活动特征的探讨[J].地球物理学报, 1977, 20(2):96~109. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX197702001.htmKAN Rong-ju, ZHANG Si-chang, YAN Feng-tong, et al. Present tectonic stress field and its relation to the characteristics of recent tectonic activity in southwestern China[J]. Acta Geophusica Sinica, 1977, 20(2):96~109. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX197702001.htm [18] 谢富仁, 崔效锋, 赵建涛, 等.中国大陆及邻区现代构造应力场分区[J].地球物理学报, 2004, 47(4):654~662. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200404016.htmXIE Fu-ren, CUI Xiao-feng, ZHAO Jian-tao, et al. Regional division of the recent tectonic stress field in China and adjacent areas[J]. Chinese journal of geophysics, 2004, 47(4):654~662. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX200404016.htm [19] 崔效锋, 谢富仁, 张红艳.川滇地区现代构造应力场分区及动力学意义[J].地震学报, 2006, 28(5):451~461. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB200605000.htmCUI Xiao-feng, XIE Fu-ren, ZHANG Hong-yan. Recent tectonic stress field zoning in Sichuan-Yunnan region and its dynamic interest[J]. Acta seismologica sinica, 2006, 28(5):451~461. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB200605000.htm [20] 许忠淮, 阎明, 赵仲和.由多个小地震推断的华北地区构造应力场的方向[J].地震学报, 1983, 5(3):268~279. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198303001.htmXU Zhong-hua, YAN Ming, ZHAO Zhong-he. Evalution of the direction of tectonic stress in North China from recorded data of a large number of small earthquakes[J]. Acta Seismologica Sinica, 1983, 5(3):268~279. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198303001.htm [21] 徐纪人, 赵志新.苏鲁-大别造山带及其周围现代地壳应力场与构造运动区域特征[J].地质学报, 2006, 80(12):1956~1965. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200612026.htmXU Ji-ren, ZHAO Zhi-xin. Regional characteristics of modern crustal stress field and tectonic motions in and around the sulu-dabie orogen belt[J]. Acta Seismologica Sinica, 2006, 80(12):1956~1965. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200612026.htm [22] 方仲景, 向宏发, 丁梦林, 等.苏鲁皖地区晚新生代构造应力场的初步探讨[J].地震地质, 1979, 1(4):11~25. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ197904002.htmFANG Zhong-jing, XIANG Hong-fa, DING Meng-lin, et al. Preliminary study of late Cenozoic tectonic stress field in Jiangsu-Shandong-Anhui region[J]. Seismology and Geology, 1979, 1(4):11~25. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ197904002.htm [23] 吴晶, 高原, 石玉涛, 等.基于地壳介质各向异性分析江苏及邻区构造应力特征[J].地球物理学报, 2010, 53(7):1622~1630. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201007014.htmWU Jing, GAO Yuan, SHI Yu-tao, et al. Tectonic stress analysis based on the crustal seismic anisotropy in Jiangsu and its adjacent area[J]. Chinese Journal of Geophysics, 2010, 53(7):1622~1630. http://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201007014.htm [24] 徐杰, 周本刚, 计凤桔, 等.华北渤海湾盆地区大震发震构造的基本特征[J].地震地质, 2012, 34(4):618~636. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ201204011.htmXU Jie, ZHOU Ben-gang, JI Feng-ju, et al. Features of seismogenic structures of great earthquakes in the Bohai Bay basin area, North China[J]. Seismology and Geology, 2012, 34(4):618~636. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ201204011.htm [25] 阚荣举, 王绍晋, 黄崐, 等.中国西南地区现代构造应力场与板内断块相对运动[J].地震地质, 1983, 5(2):79~90. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ198302009.htmKAN Rong-ju, WANG Shao-jin, HUANG Kun, et al. Modern stress field and relative motion of intraplate block in southwest China[J]. Seismology and Geology, 1983, 5(2):79~90. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ198302009.htm [26] 王绍晋, 龙晓帆, 余庆坤.昆明地区现代构造应力场分析[J].地震研究, 2005, 28(2):178~184. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDW200410001197.htmWANG Shao-jin, LONG Xiao-fan, YU Qing-kun. Analysis on recent tectonic stress field in the Yunnan region[J]. Journal of Seismological Research, 2005, 28(2):178~184. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDW200410001197.htm [27] 成尔林.四川及其邻区现代构造应力场和现代构造运动特征[J].地震学报, 1981, 3(3):231~241. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198103001.htmCHENG Er-lin. Recent tectonic stress field and tectonic movement of the Sichuan Province and its vicinity[J]. Acta Seismologica Sinica, 1981, 3(3):231~241. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB198103001.htm [28] 陈小斌.中国陆地现今水平形变状况及其驱动机制[J].中国科学D辑:地球科学, 2007, 37(8):1056~1064. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200708009.htmCHEN Xiao-bin. Present-day horizontal deformation status of continental China and its driving mechanism[J]. Science in China:Earth Sciences, 2007, 37(8):1056~1064. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200708009.htm [29] 李延兴, 张静华, 周伟, 等.南海及周围地区的现今构造运动[J].大地测量与地球动力学, 2010, 30(3):10~16. http://www.cnki.com.cn/Article/CJFDTOTAL-DKXB201003005.htmLI Yan-xing, ZHANG Jing-hua, ZHOU Wei, et al. Current tectonic movement of South China sea and its surrounding areas[J]. Journal of Geodesy and Geodynamics, 2010, 30(3):10~16. http://www.cnki.com.cn/Article/CJFDTOTAL-DKXB201003005.htm [30] 范桃园, 陈群策, 吴中海, 等.青藏高原东缘活动构造与现今地应力场三维粘弹性模拟研究[J].地球物理学进展, 2013, 28(3):1140~1149. doi: 10.6038/pg20130305FAN Tao-yuan, CHEN Qun-ce, WU Zhong-hai, et al. 3D Viscoelastic modeling on the present crustal stress of easternQingzang Plateau including active tectonics[J]. Progress in Geophys, 2013, 28(3):1140~1149. doi: 10.6038/pg20130305 [31] 范桃园, 孙玉军, 吴中海.青藏高原东缘旋转变形机制的数值模拟[J].地质通报, 2014, 33(04):497~502. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201404006.htmFAN Tao-yuan, SUN Yu-jun, WU Zhong-hai. Numerical modeling analysis of the rotation deformation mechanism of the eastern margin of the Tibetan Plateau[J]. Geological Bulletin of China, 2014, 33(4):497~502. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201404006.htm [32] 吴中海, 赵根模, 龙长兴, 等.青藏高原东南缘现今大震活动特征及其趋势:活动构造体系角度的初步分析结果[J].地质学报, 2014, 88(8):1401~1416. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201408004.htmWU Zhong-hai, ZHAO Gen-mo, LONG Chang-xing, et al. The seismic hazard assessment around south-east area of Qinghai-Xizang Plateau:A preliminary results from active tectonics system analysis[J]. Acta Geologica Sinica, 2014, 88(8):1401~1416. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201408004.htm [33] 许忠淮.东亚地区现今构造应力图的编制[J].地震学报. 2001, 23(5):492~501. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB200105004.htmXU Zhong-huai. A present-day tectonic stress map for Eastern Asia region[J]. Acta Seismologica Sinica. 2001, 23(5):492~501. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB200105004.htm [34] 朱守彪, 石耀霖.中国大陆及邻区构造应力场成因的研究[J].中国科学D辑:地球科学, 2006, 36(12):1077~1083. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200612000.htmZHU Shou-biao, SHI Yao-lin. Causes of tectonic stress field in China and adjacent areas[J]. Science in China:Earth Sciences, 2006, 36(12):1077~1083. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200612000.htm [35] 邓起东, 张培震, 冉勇康, 等.中国活动构造基本特征[J].中国科学D辑:地球科学, 2002, 32(12):1020~1030. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200212006.htmDENG Qi-dong, ZHANG Pei-zhen, RAN Yong-kang, et al. Basic characteristic of active tectonics of China[J]. Science in China:Earth Sciences, 2002, 32(12):1020~1030. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200212006.htm [36] 张培震, 邓起东, 张国民, 等.中国大陆的强震活动与活动地块[J].中国科学D辑:地球科学, 2003, 33(S1):12~20. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY2003S1012.htmZHANG Pei-zhen, DENG Qi-dong, ZHANG Guo-min, et al. Active tectonic blocks and strong earthquakes in continental China[J]. Science in China:Earth Sciences, 2003, 33(S1):12~20. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY2003S1012.htm [37] 张培震, 王敏, 甘卫军, 等. GPS观测的活动断裂滑动速率及其对现今大陆动力作用的制约[J].地学前缘, 2003, 10(S1):81~92. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY2003S1013.htmZHANG Pei-zhen, WANG Min, GAN Wei-jun, et al. Slip rates along major active faults from GPS measurements and constraints on contemporary continental tectonics[J]. Earth Science Frontiers, 2003, 10(S1):81~92. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY2003S1013.htm -
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