某高原沟谷型泥石流发育特征及其影响分析  

Development Characteristics and Impact Analysis ofa Gully-Type Debris Flow in a Plateau Region

作　　者：王斌 曹鑫 姜士磊 Wang Bin;Cao Xin;Jiang Shilei(Tibet Tianyuan Mining Resources Development Co.,Ltd.;Zhongkan Metallurgical Investigation Design and Research Institute Co.,Ltd.)

机构地区：[1]西藏天圆矿业资源开发有限公司,西藏日喀则857000 [2]中勘冶金勘察设计研究院有限责任公司,河北保定071000

出　　处：《勘察科学技术》2025年第2期34-36,41,共4页Site Investigation Science and Technology

摘　　要：该文从地质构造及地层岩性两方面,分析了西藏某矿山泥石流物源颗粒的组成及形成背景。根据矿区泥石流发育特征,计算得到泥石流容重、流速、流量及一次输移量等参数。以N2泥石流为例,经分析,N2区域泥石流的规模较小、中等发育、处于发展期,并对该处拟建排土场的潜在风险进行评价,提出了解决建议。This paper analyzes the composition and formation background of debris flow source materials in a mining area in Tibet from the perspectives of geological structure and stratigraphic lithology.Based on the development characteristics of debris flow in the mining area,key parameters such as unit weight,velocity,discharge,and single transport volume of the debris flow is calculated.Taking the N2 debris flow as an example,the analysis indicates that the debris flow in the N2 area is small in scale,moderately developed,and currently in a developmental stage.The study also evaluates the potential risks posed to the proposed waste disposal site in the area and offers corresponding mitigation suggestions.

关 键 词：泥石流 沟道纵比降 汇水面积 发育特征 

分 类 号：P642.23[天文地球—工程地质学]