| 川藏公路林芝-八宿段地质灾害特征及形成机制初探 |
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| 引用本文： | 廖秋林,李晓,董艳辉,李守定.川藏公路林芝-八宿段地质灾害特征及形成机制初探[J].地质力学学报,2004,10(1):33-39. |
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| 作者姓名： | 廖秋林 李晓 董艳辉 李守定 |
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| 作者单位： | 中国科学院地质与地球物理研究所工程地质力学重点实验室,北京,100029 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，中国科学院知识创新工程项目，2002CB412702，KJCX2-SW-L1-1，， |
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| 摘 要： | 川藏公路林芝至八宿段地质灾害尤为发育，严重影响了川藏公路的安全运行。为有效防灾与减灾，本文立足于野外考察和对已有资料的统计分析，对该地区开展了区域性地质灾害研究。研究表明，研究区域地质灾害有以下几个显著特征：在分布上，灾害发育密集、类型多、分段性显著；成因复杂的松散堆积体是地质灾害的主要物质基础；强烈的水岩作用和内外动力耦合作用是该地区地质灾害形成、发生的重要因素。本文为该区域地质灾害的成灾机理及其防治措施的研究提供了科学依据。
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| 关 键 词： | 地质灾害 形成机制 川藏公路 水岩作用 |
| 文章编号： | 1006-6616(2004)01-0033-07 |
| 收稿时间： | 2003/10/9 0:00:00 |
| 修稿时间： | 2003年10月9日 |
CHARACTERISTICS AND FORMATION MECHANISM OF GEOLOGICAL HAZARDS ALONG THE SECTION FROM NYINGCHI TO BAXOI OF THE SICHUAN-TIBET HIGHWAY |
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| LIAO Qiu-lin,LI Xiao,DONG Yan-hui and LI Shou-ding.CHARACTERISTICS AND FORMATION MECHANISM OF GEOLOGICAL HAZARDS ALONG THE SECTION FROM NYINGCHI TO BAXOI OF THE SICHUAN-TIBET HIGHWAY[J].Journal of Geomechanics,2004,10(1):33-39. |
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| Authors: | LIAO Qiu-lin LI Xiao DONG Yan-hui and LI Shou-ding |
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| Institution: | LIAO Qiu-lin,LI Xiao,DONG Yan-hui,LI Shou-ding physics,Chinese Academy of Sciences,Beijing 100029,China) |
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| Abstract: | Geological hazards along the section from Nyingchi to Baxoi of the Sichuan-Tibet Highway are especially severe and have seriously affected the safe riding along the highway. In order to prevent and reduce disasters effectively, regional geological hazards have been studied in the area on the basis of the field investigations and statistic analysis of available data. The results show the following three prominent characteristics of hazards in the area: in terms of distribution geologic hazards are close-spaced, have many types and are notably divided into sectors; loose Quaternary deposits of complex origin form the main material foundation of geological hazards; intense water-rock interaction and coupling of endogenic and exogenic forces are the important factors for the formation and occurrence of geological hazards in the area. This paper provides a scientific basis for the study of the mechanism of occurrence of the geological hazards in the area and measures for their prevention and control. |
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| Keywords: | geological hazard Sichuan-Tibet Highway coupling of endogenic and exogenic dynamic forces water-rock interaction |
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