Development characteristics and formation mechanism of Deqin Riyinka landslide in Yunnan
-
摘要:
云南德钦地区位于青藏高原南延部位横断山纵谷地带，多数村镇海拔在3000 m以上，地质构造复杂，岩体破碎，滑坡、崩塌、泥石流等地质灾害频发、易发，属于"三区三州"内典型的高海拔贫困区。通过在该区域内开展地质灾害调查与监测，查明了高海拔贫困山区的地质灾害分布特征和成灾机理。以日因卡滑坡为例，采用"空-天-地"一体化技术，结合滑坡研究区的工程地质条件，现场调查分析滑坡潜在失稳机理与滑坡运动特征，围绕地质灾害调查评价、监测预警、应急防治等体系开展工作，得到几点认识：①滑坡失稳与地表降水、冰雪融水、冻融循环作用及切坡建房等人类工程活动密切相关；②根据滑坡变形特征，概化其孕灾失稳过程，即前缘局部滑动阶段→蠕滑-拉裂阶段→整体滑动阶段→铲刮覆盖阶段；③基于分析澜沧江流域滑坡灾害的发育特征，总结了此类滑坡的成灾模式，并针对性地提出了"三区三州"高海拔贫困区内地质灾害的防治措施和建议，为贫困区科学防灾减灾提供了技术支撑和科学依据，切实保障了贫困群众的生命财产安全。
-
关键词:
- "空-天-地"一体化 /
- 滑坡 /
- 灾害分布特征 /
- 成灾机理 /
- 脱贫攻坚
Abstract:The Deqin area of Yunnan is located in the vertical valley of the Hengduan Mountain along the southern extension of the Tibetan Plateau.Most villages and towns are more than 3000 meters above the sea level.The geological structure there is complex, rock masses are broken, and landslides, collapses, debris flows and other geological disasters are frequent and prone to occur.Deqin is hence a typical high-altitude poverty area in the three districts and three prefectures.In accordance with the requirements of strengthening geological disaster investigation and monitoring and early warning in the Ministry of Natural Resources 2020 Plan for Poverty Alleviation Work and through the investigation and monitoring of geological disasters in this area, the distribution characteristics and mechanism of and disasters of geological disasters in high-altitude poor mountainous areas were identified.With Riyinka landslide as an example, the authors adopted "air-space-ground" integrated technology in combination with the engineering geological conditions of the landslide study area, investigated and analyzed the potential instability mechanism and landslide movement characteristics of the landslide, and focused on the investigation, evaluation and monitoring of geological disasters.Early warning, emergency prevention and other systems were carried out, and several understandings were obtained as follows:①Landslide instability is closely related to human engineering activities such as surface precipitation, ice and snow melting, freezing and thawing cycles, and cutting slopes and building houses; ②According to landslide deformation characteristics, the authors generalized the disaster-pregnancy and instability procese, i.e., local sliding stage at the leading edge → creeping-cracking stage → overall sliding stage → scraping and covering stage.③Based on the analysis of the development characteristics of landslide disasters in the Lancang River Basin, the authors made a disaster model of such landslides, and put forward the prevention and control measures and suggestions for tackling geological disasters in high-altitude poverty areas in the three districts and three prefectures.Scientific disaster prevention and mitigation provide technical support and scientific basis and can effectively protect the lives and property of the poor.
-
-
[1] 殷跃平, 刘传正, 陈红旗, 等.2013年1月11日云南镇雄赵家沟特大滑坡灾害研究析[J].工程地质学报, 2013, 21(1):6-10. doi: 10.3969/j.issn.1004-9665.2013.01.002
[2] 刘传正, 刘艳辉, 温铭生, 等.中国地质灾害区域预警方法与应用[M].北京:地质出版社, 2009:11-23.
[3] 魏云杰, 邵海, 朱赛楠, 等.新疆伊宁县皮里青河滑坡成灾机理分析[J].中国地质灾害与防治学报, 2017, 28(4):22-26. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH201704005.htm
[4] 庄茂国, 魏云杰, 邵海, 等.新疆伊犁皮里青河黄土滑坡类型及其发育特征[J].中国地质灾害与防治学报, 2018, 29(1):54-59. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH201801009.htm
[5] 朱赛楠, 殷跃平, 李滨.大型层状基岩滑坡软弱夹层演化特征研究-以重庆武隆鸡尾山滑坡为例[J].工程地质学报, 2018, 26(6):1638-1647. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201806026.htm
[6] 殷跃平, 王文沛, 张楠, 等.强震区高位滑坡远程灾害特征研究——以四川茂县新磨滑坡为例[J].中国地质, 2017, 44(5):827-841. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201705002.htm
[7] Yin Y P, Cheng Y L, Liang J T, et al.Heavy rain fall induced catastrophic rock slide Debris low at Sanxicun, Dujiangyan, after the Wenchuan Ms8.0 earthquake[J].Landslides, 2016, 13(1):9-23. doi: 10.1007/s10346-015-0554-9
[8] 胡卸文, 黄润秋, 施裕兵, 等.唐家山滑坡堵江机制及堰塞坝溃坝模式分析[J].岩石力学与工程学报, 2009, 28(1):181-189. doi: 10.3321/j.issn:1000-6915.2009.01.024
[9] 冯振, 殷跃平, 李滨, 等.重庆武隆鸡尾山滑坡视向滑动机制分析[J].岩土力学, 2012, 33(9):2704-2712. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201209027.htm
[10] 刘传正.中国崩塌滑坡泥石流灾害成因类型[J].地质论评, 2014, 60(4):858-868. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201404018.htm
[11] 铁永波, 徐勇, 张勇, 等.南方山地丘陵区地质灾害调查工程主要进展与成果[J].中国地质调查, 2020, 7(2):1-12. https://www.cnki.com.cn/Article/CJFDTOTAL-DZDC202002001.htm
[12] 刘传正, 郭强, 陈红旗.贵州省纳雍县岩脚寨危岩崩塌灾害成因初步分析[J].中国地质灾害与防治学报, 2004, (4):123-144. doi: 10.3969/j.issn.1003-8035.2004.04.031
[13] 殷跃平, 朱继良, 杨胜元.贵州关岭大寨高速远程滑坡-碎屑流研究[J].工程地质学报, 2010, 18(4):445-454. doi: 10.3969/j.issn.1004-9665.2010.04.002
[14] Hungr O.Rockavalacheoccurrence, process and modelling[C]//Evans S G.Landslides from Massive Rock Slope Failure, 2006: 243-266.
[15] Yin Y P, Wang F W, Sun P.Landslide hazards triggered by the 2008 Wenchuan earthquake, Sichuan, China[J].Landslides, 2009, (2):139-152. http://www.tandfonline.com/servlet/linkout?suffix=cit0065&dbid=16&doi=10.1080%2F19475705.2018.1451399&key=10.1007%2Fs10346-009-0148-5
[16] Conte E, Donato A, Pugliese L, et al.Analysis of the Maierato landslide(Calabria, Southern Italy)[J].Landslides, 2018, 15(10):1935-1950. doi: 10.1007/s10346-018-0997-x
[17] 殷跃平, 康宏达, 何思为, 等.乌江鸡冠岭危岩体整治爆破工程方案[J].中国地质灾害与防治学报, 1994, 5(增1):324-331. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH4S1.052.htm
[18] 黄润秋.汶川地震地质灾害研究[M].北京:科学出版社, 2009.
[19] 崔鹏, 何思明, 姚令凯, 等.汶川地震山地灾害形成机理与风险控制[M].北京:科学出版社, 2011.
[20] 殷跃平, 张永双.汶川地震工程地质与地质灾害[M].北京:科学出版社, 2013.
[21] 王掌权, 许健, 郑翔, 等.反复冻融条件下黄土边坡稳定性分析[J].中国地质灾害与防治学报, 2017, (2):15-21. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH201702003.htm
[22] 褚宏亮, 孙长勇, 张希夷, 等.四川峨眉山市王山-抓口寺滑坡滑带工程地质特征研究[J].中国地质灾害与防治学报, 2017, (1):48-52. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH201701008.htm
[23] 王晓明, 买振军.新疆伊犁典型特大型黄土滑坡群成因机制及变形特征[J].水利与建筑工程学报, 2016, (4):195-200. doi: 10.3969/j.issn.1672-1144.2016.04.038
[24] 魏云杰, 褚宏亮, 庄茂国, 等.四川省峨眉山市王山-抓口寺滑坡成因机理研究[J].工程地质学报, 2016, (3):477-483. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201603019.htm
[25] 程秀娟, 张茂省, 朱立峰, 等.季节性冻融作用及其对斜坡土体强度的影响——以甘肃永靖黑方台地区为例[J].地质通报, 2013, 32(6):904-909. doi: 10.3969/j.issn.1671-2552.2013.06.013 http://dzhtb.cgs.cn/gbc/ch/reader/view_abstract.aspx?file_no=20130613&flag=1
[26] 安海堂, 刘平.新疆伊犁地区黄土滑坡成因及影响因素分析[J].地质灾害与环境保护, 2010, (3):22-25. doi: 10.3969/j.issn.1006-4362.2010.03.004
[27] 王念秦, 姚勇.季节冻土区冻融期黄土滑坡基本特征与机理[J].防灾减灾工程学报, 2008, (2):163-166. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXK200802009.htm
[28] Scheidegger A E.On the prediction of the reach and velocity of catastrophic landslides[J].Rock Mechanics Felsmechanik Mécaniquedes Roches, 1973, (4):231-236. doi: 10.1007/BF01301796
[29] Zhuang Q L, Peng J B.Acoupled slope cutting-aprolongedrainfall-induced loess landslide:a 17 October 2011 casestudy[J].Bulletin of Engineering Geology and the Environment, 2014, (4):997-1011. doi: 10.1007/s10064-014-0645-1
[30] 张永双, 吴瑞安, 郭长宝, 等.古滑坡复活问题研究进展与展望[J].地球科学进展, 2018, (7):728-740. https://www.cnki.com.cn/Article/CJFDTOTAL-DXJZ201807006.htm
[31] 冯文凯, 张国强, 白慧林, 等.金沙江"10·11"白格特大型滑坡形成机制及发展趋势初步分析[J].工程地质学报, 2019, (2):415-425. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201902023.htm
[32] 王立朝, 温铭生, 冯振, 等.中国西藏金沙江白格滑坡灾害研究[J].中国地质灾害与防治学报, 2019, (1):1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH201901001.htm
[33] 郭长宝, 任三绍, 李雪, 等.甘肃舟曲南峪江顶崖古滑坡发育特征与复活机理[J].现代地质, 2019, (1):206-217. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ201901020.htm
[34] 许强, 郑光, 李为乐, 等.2018年10月和11月金沙江白格两次滑坡——堰塞堵江事件分析研究[J].工程地质学报, 2018, (6):1534-1551. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201806016.htm
-
下载:
图(13)
计量
- 文章访问数: 485
- PDF下载数: 7
- 施引文献: 0