西藏樟木堆积体结构及其稳定性  

STRUCTURE AND STABILITY OF ZHANGMU DEPOSIT IN TIBET

作　　者：胡瑞林[1] 张小艳[1,2] 马凤山[1] 张路青[1] 李志清[1] 高玮[1,2] 王杰[1,2] 孙永帅[1,2] 

机构地区：[1]中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室,北京100029 [2]中国科学院大学,北京100049

出　　处：《工程地质学报》2014年第4期723-730,共8页Journal of Engineering Geology

基　　金：国家自然科学基金项目(No.41330643,41030750)资助

摘　　要：樟木口岸是我国与尼泊尔王国之间唯一的陆路通商口岸,也是西藏地区目前唯一具有一定规模的国际贸易口岸,但该口岸坐落于一大型堆积体之上,长期面临地质灾害的威胁。为进一步论证该堆积体的稳定问题,本文在野外调查基础上,对该堆积体的工程地质结构、岩土类型以及斜坡的变形破坏规律和稳定性进行了初步分析。结果表明:该堆积体并非单一土质结构,尚存在冰水堆积等类型,斜坡发生整体滑坡的可能性小,以地形坡度、人类工程活动等控制的局部滑移为主。Evaluation of the structure and stability of Zhangmu Deposit means a lot to Zhangmu Port,the only international overland trading port between China and Nepal,which is located on it and has faced the threat of geological disasters over a long time.To demonstrate the stability of the slope,the engineering geological structure and soil-rock mixture types of Zhangmu Deposit along with the slope deformation and failure laws are preliminary analyzed based on the field survery.Results show that,Zhangmu Deposit is composed of not just one single soil structure,but includes colluvial,residual and glaciofluvial deposits amongst others,and the slope less likely slides as a whole,but will mainly slip partially controlled by the terrain and human engineering activities.

关 键 词：樟木口岸 樟木堆积体 滑坡 结构 稳定性 

分 类 号：P642.22[天文地球—工程地质学]