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工程科学与技术:2019,51(5):1-8
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青藏高原重大滑坡动力灾变与风险防控关键技术研究
(1.四川大学 水力学与山区河流开发保护国家重点实验室 水利水电学院, 四川 成都 610065;2.北京工业大学 建筑工程学院, 北京 100023;3.中国地质大学(北京) 水资源与环境学院, 北京 100083;4.中国地质科学院 地质力学研究所, 北京 100086)
Investigation on the Catastrophic Mechanism and Risk Control Measures of Major Landslides in Tibetan Plateau
(1.State Key Lab. of Hydraulics and Mountain River Eng., College of Water Resource and Hydropower, Sichuan Univ., Chengdu 610065, China;2.College of Architecture and Civil Eng., Beijing Univ. of Technol., Beijing 100023, China;3.School of Water Resources and Environment, China Univ. of Geosciences (Beijing), Beijing 100083, China;4.Inst. of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100086, China)
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投稿时间:2019-07-18    修订日期:2019-08-28
中文摘要: 青藏高原是全球地质环境最脆弱的地区之一,地质条件复杂,地壳隆升、高地应力、地震、冻融、暴雨等内外动力强烈,重大滑坡频发,链生灾害剧烈。滑坡问题已严重影响川藏铁路、水能资源开发等国家重大工程建设,威胁区域居民人身与财产安全。2018年金沙江上游连续发生的白格“10.10”和“11.3”滑坡堵江事件即为典型案例。然而,目前理论上对青藏高原重大滑坡的孕灾环境与成灾机制认识不清,技术上不能对重大滑坡进行早期识别和有效风险防控,不能有效地为该地区重大滑坡灾害的灾前防控、灾后救灾提供科技支撑。针对上述问题,以地质条件最复杂、内外动力作用最强烈、滑坡灾害最频繁的青藏高原东南三江流域为重点研究区,采用多学科综合交叉融合的方法,从滑坡的成因机制入手,破解其链生演化难题,提出早期识别与风险防控体系;通过解决青藏高原重大滑坡孕育的内外动力耦合作用机制、青藏高原重大滑坡及其灾害链的动力学机制等科学问题,以及青藏高原重大滑坡的遥感早期识别与监测、基于重大滑坡动力过程的动态风险评估与防控等技术问题,最终形成青藏高原重大滑坡成因理论、防控技术和综合减灾技术示范。
Abstract:Tibetan Plateau is one of the districts with the most susceptible geo-environments. The district is characterized by its complex geology, strong endogenic and exogenic geological processes as crustal uplift, high in-situ stresses, earthquakes, repeating ground freeze and thaw, intensive precipitation etc., frequent landslides and chained disasters. Landslides have become a serious problem affecting the construction of major engineering project as Tibet-Sichuan railway line and regional hydropower stations, and also menacing the safety of local residents and their living facilities. On October 10th and November 3rd, 2018, landslides, damming the upper reach of Jinsha River at Baige village, are two typical cases. However, for the research of major landslides in Tibetan Plateau, theoretically it’s not quite clear that how they happen and what is their catastrophic mechanism; technically it is still under development that how to effectively recognize and control the disasters in advance. That is, current theory and technique cannot provide efficient support for pre-disaster control and post-disaster relief works. The three-river area (Jinsha River, Lancang River and Nu River) is located on the southeast edge of Tibetan Plateau and is characterized by complex geology, strong endogenic and exogenic geological processes and frequent landslide disasters, making it selected as the key area for investigation. Multidisciplinary endeavor will be used in the investigation, starting from the genesis mechanism of landslides, revealing the evolution of the chained disasters, then suggesting techniques for early recognition and risk control of landslide disasters. Through solving the scientific problems of major landslides in Tibetan Plateau such as the coupling mechanism of endogenic and exogenic processes, the dynamic mechanism of the disaster and its chains, and the technical challenges as remote sensing-based early recognition and monitoring, kinematic process-based risk evaluation and control techniques, the project finally demonstrates the application of the above theory and techniques by typical case histories of disaster reduction.
文章编号:201900719     中图分类号:    文献标志码:
基金项目:国家重点研发计划项目(2018YFC1505000)
作者简介:邓建辉(1965-),男,教授,博士.研究方向:边坡工程与地质灾害.E-mail:jhdeng@scu.edu.cn;邓建辉,四川大学水利水电学院教授、博士生导师,水力学与山区河流开发保护国家重点实验室副主任,全国注册岩土工程师,四川省学术和技术带头人,国家重点研发计划"青藏高原重大滑坡动力灾变与风险防控关键技术研究"项目负责人,中国岩石力学与工程学会常务理事,环境岩土工程分会和地面岩石工程专委会副理事长,四川省岩石力学与工程学会副理事长,以及《岩石力学与工程学报》《岩土力学》等期刊编委。主要研究边坡工程与地质灾害、原型监测与反馈分析。曾获得国家科技进步二等奖1项,省部级科技进步奖多项;发表论文100余篇,其中SCI、EI收录70余篇;曾获得《Canadian Geotechnical Journal》2001年度最佳论文提名奖(the R.M.Quigley Award)。
引用文本:
邓建辉,戴福初,文宝萍,姚鑫.青藏高原重大滑坡动力灾变与风险防控关键技术研究[J].工程科学与技术,2019,51(5):1-8.
DENG Jianhui,DAI Fuchu,WEN Baoping,YAO Xin.Investigation on the Catastrophic Mechanism and Risk Control Measures of Major Landslides in Tibetan Plateau[J].Advanced Engineering Sciences,2019,51(5):1-8.