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G317马尔康—德格段高寒山区崩塌发育规律研究
发表时间：2016-12-31 浏览量：1925 下载量：414
| 全部作者： | 张国厅，袁进科，程强 |
| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室；四川省交通运输厅公路规划勘察设计研究院 |
| 摘 要： | G317马尔康—德格段地处高寒、高海拔、高烈度的“三高”地区，崩塌灾害频发，严重影响了公路的正常运营和人民的生命财产安全。对研究区的崩塌灾害进行实地调查，总结崩塌灾害的基本情况，指出研究区地形地貌、地质构造、气象水文等地质环境有利于崩塌灾害的发育。在此基础上，利用地理信息系统（geographic information system，GIS）技术分析崩塌灾害的分布与高程、坡岸结构、坡向、岩性等因素的关系，总结出沿线崩塌灾害的发育规律。同时，归纳了该路段崩塌灾害的变形破坏特征，总结出冻胀倾倒型、冻融—滑移型、剪断—滑移型、拉剪—坠落型、风化—剥蚀型等5种典型的失稳模式。 |
| 关 键 词： | 地球科学其他学科；G317；崩塌；地理信息系统分析；发育规律；失稳模式 |
| Title： | Research on development rules of alpine mountain collapses in Maerkang-Dege section of China nation highway 317 |
| Author： | ZHANG Guoting, YUAN Jinke, CHENG Qiang |
| Organization： | State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology; Sichuan Provincial Transport Department Highway Planning, Survey, Design and Research Institute |
| Abstract： | Maerkang-Dege section of China national highway 317 is located in the “Three High” area, namely high cold, high altitude and high intensity. The frequent collapse hazards seriously threaten both the normal operation of the highway and the safety of people’s life and property. In this paper, a field survey for collapse hazards is conducted in the study area. It shows that geological environment characteristics, including topography, geological structure, meteorology and hydrology, are benefical to the development of collapse hazards. Based on the statistical data, we use the geographic information system (GIS) technology to analyse the relationship of distribution of collapse hazard with elevation, slope configuration, slope aspect, lithology and so on, then conclude the development rule about collapse hazards. And we summarize 5 failure modes of collapsed bodies, mainly freeze-dumping, freeze-thaw-sliding, shear-sliding, shear-falling and weathering-denudation along the road. |
| Key words： | other subjects of earth science; G317; collapse hazards; geographic information system analysis; development rules; instability pattern |
| 发表期数： | 2016年12月第24期 |
| 引用格式： | 张国厅，袁进科，程强. G317马尔康—德格段高寒山区崩塌发育规律研究[J]. 中国科技论文在线精品论文，2016，9（24）：2593-2602. |
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