| Institute of Geomechanics, Chinese Academy of Geological Sciences | Host |
| Citation: |
GAN Jian-jun, HUANG Run-qiu, LI Qian-yin, YE Xiao-hua, GAO Wen-jun. FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY[J]. Journal of Geomechanics, 2010, 16(2): 146-158.
|
FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY
-
Abstract
The geological hazards induced by the Wenchuan MS8.0 earthquake along the Dujiangyan-Wenchuan Highway are especially severe and have seriously affected the safe riding along the highway and the reconstructions. In order to prevent and reduce disasters effectively, main geo-hazard type, slope failure modes and its formation mechanism, and the tempo-spitial distribution in the area have been studied on the basis of the field investigations and statistic analysis of available data. The main damage types include debris flow to collapse, cataclastic rocks to collapse, and shatter-subduction type mudslides, oscillation high-speed sliding debris flows along the slope area. Born transformation induced by such disasters have intensive, systematic and subsection characteristic. Thegeologic hazards have many types and are notably divided into sectors; the high and steep rock deposits of complex origin become the main materials of geological hazards; intense earthquake effect and coupling of endogenic and exogenic forces are important factors for formation and occurrence of geological hazards in the area.
-
-
References
[1] 彭华, 马秀敏, 姜景捷.山丹地应力监测站体应变仪的地震效应[J].地质力学学报, 2008, 14(2):97~108. doi: 10.3969/j.issn.1006-6616.2008.02.001 PENG Hua, MA Xiu-min, JIANG Jing-jie.Analysis of the volume strain data from the Shandan in-situ stress Monitoring Station[J].Journal of Geomechanics, 2008, 14(2):97~108. doi: 10.3969/j.issn.1006-6616.2008.02.001 [2] 张永双, 雷伟志, 石菊松, 等.四川5.12地震次生地质灾害的基本特征初析[J].地质力学学报, 2008, 14(2):109~116. doi: 10.3969/j.issn.1006-6616.2008.02.002 ZHANG Yong-shuang, LEI Wei-zhi, SHI Ju-song, et al.General characteristics of 5.12 earthquake-induced geo-hazards in Sichuan[J].Journal of Geomechanics, 2008, 14(2):109~116. doi: 10.3969/j.issn.1006-6616.2008.02.002 [3] 王连捷, 周春景, 孙东生, 等.汶川5.12地震引起的库仑应力变化及其对周边地震活动的影响[J].地质力学学报, 2008, 14(3):193~200. doi: 10.3969/j.issn.1006-6616.2008.03.001 WANG Lian-jie, ZHOU Chun-jing, SUN Dong-sheng, et al.Coulomb stress changes caused by Wenchuan earthquake and its influence on seismic activity in the adjacent area[J].Journal of Geomechanics, 2008, 14(3):193~200. doi: 10.3969/j.issn.1006-6616.2008.03.001 [4] 王连捷, 崔军文, 周春景, 等.汶川5.12地震发震机理的数值模拟[J].地质力学学报, 2009, 15(2):105~113. doi: 10.3969/j.issn.1006-6616.2009.02.001 WANG Lian-jie, CUI Jun-wen, ZHOU Chun-jing, et al.Numerical modeling for Wenchuan earthquake mechanism[J].Journal of Geomechanics, 2009, 15(2):105~113. doi: 10.3969/j.issn.1006-6616.2009.02.001 [5] 彭华, 马秀敏, 姜景捷.龙门山北端青川断层附近应力测量与断层稳定性[J].地质力学学报, 2009, 15(2):114~130. doi: 10.3969/j.issn.1006-6616.2009.02.002 PENG Hua, MA Xiu-min, JIANG Jing-jie.Stability and stress measurement near the Qingchuan fault in the northern Longmen Mountains[J].Journal of Geomechanics, 2009, 15(2):114~130. doi: 10.3969/j.issn.1006-6616.2009.02.002 [6] 张永双, 石菊松, 孙萍, 等.汶川地震内外动力耦合及灾害实例[J].地质力学学报, 2009, 15(2):131~141. doi: 10.3969/j.issn.1006-6616.2009.02.003 ZHANG Yong-shuang, SHI Ju-song, SUN Ping, et al.Coupling between endogenic and exogenic geological processes in the Wenchuan earthquake and example analysis of geo-hazards[J].Journal of Geomechanics, 2009, 15(2):131~141. doi: 10.3969/j.issn.1006-6616.2009.02.003 [7] 谭成轩, 孙叶, 吴树仁, 等."5.12"汶川 MS. 8.0大地震后后我国区域地壳稳定性评价的思考[J].地质力学学报, 2009, 15(2):142~150. doi: 10.3969/j.issn.1006-6616.2009.02.004 TAN Cheng-xuan, SUN Ye, WU Shu-ren, et al.A consideration on regional crustal stability assessment after MS 8.0 Wenchuan strong earthquake in China[J].Journal of Geomechanics, 2009, 15(2):142~150. doi: 10.3969/j.issn.1006-6616.2009.02.004 [8] 姚鑫, 张永双.基于差分干涉雷达的汶川地震同震形变特点[J].地质力学学报, 2009, 15(2):151~161. doi: 10.3969/j.issn.1006-6616.2009.02.005 YAO Xin, ZHANG Yong-shuang.Co-seismic deformation of 5.12 Wenchuan earthquake based on D-INSAR[J].Journal of Geomechanics, 2009, 15(2):151~161. doi: 10.3969/j.issn.1006-6616.2009.02.005 [9] Masami SAITO; Tohru ARAYA and Futoshi NAKAMURA. Sediment Production and Storage Processes Associated with Earthquake-induced Landslides in Okushiri Island, 1993. Sabo Gakkaishi-47(6). [10] 黄润秋, 李为乐.汶川大地震触发地质灾害的断层效应分析[J].工程地质学报, 2009, 17(1):19~28. doi: 10.3969/j.issn.1004-9665.2009.01.003 HUANG Run-qiu, LI Wei-le.Fault effect analysis of geo-hazard triggered by Wenchuan earthquake[J].Journal of Engineering Geology, 2009, 17(1):19~28. doi: 10.3969/j.issn.1004-9665.2009.01.003 [11] 四川省地方志编纂委员会.四川省志·地质志[M].成都:四川科学技术出版社, 1998. The Editorial Committee of annals of local history of Sichuan Province.Local History and Geology of Sichuan Province[M].Chengdu:Sichuan Science and Technology Press, 1998. [12] 四川省地矿局.四川省区域地质志[M].北京:地质出版社, 1991. Sichuan Bureau of Geology and Mineral Rosources.Regional geology of Sichuan Province[M].Beijing:Geological Publishing House, 1991. [13] 许强, 黄润秋.5.12汶川大地震诱发大型崩滑灾害动力特征初探[J].工程地质学报, 2008, 16(6):721~729. doi: 10.3969/j.issn.1004-9665.2008.06.001 XU Qiang, HUANG Run-qiu.Kinetics characteristics of large landlides triggered by May 12th Wenchuan earthquake[J].Journal of Engineering Geology, 2008, 16(6):721~729. doi: 10.3969/j.issn.1004-9665.2008.06.001 [14] 黄润秋.汶川地震地质灾害研究[M].北京:科学出版社, 2009. HUANG Run-qiu.Study on geological Hazards in Wenchuan earthquake[M].Beijing:Science Press, 2009. -
Access History
Figures(11)
Tables(1)
Export File
Citation
GAN Jian-jun, HUANG Run-qiu, LI Qian-yin, YE Xiao-hua, GAO Wen-jun. FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY[J]. Journal of Geomechanics, 2010, 16(2): 146-158.
Format
Content
DownLoad:
-
Figure 1.
A map showing the regional geology along the Dujiangyan-Wenchuan highway
-
Figure 2.
Typical valley-shape diluteddebris flow in Mozigou
-
Figure 3.
Typical slumping mudslides in Zichanggou
-
Figure 4.
Typical debris flow to collapse and its sketch profile in Maocaopo
-
Figure 5.
Typical cataclastic rocks to collapse in Xiangshuiyan
-
Figure 6.
Failure mode for cataclasite-subduction type debris flow in Mozigou
-
Figure 7.
A oscillations high speed slippage model for mudslides in Niuquangou
-
Figure 8.
A map showing distribution of geo-hazards along the sectionfrom Dujiangyan-Wengchuan Highway
-
Figure 9.
Distribution curve of geo-hazards along the Dujiangyan-Wenchuan Highway in the year
-
Figure 10.
Temporal distribution of geological hazardsin Dujiangyan-Wenchuan Highway
-
Figure 11.
A diagram of geodynamic cause of Wenchuan earthquake along Dujiangyan-Wenchuan HighwayA