中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2004, Vol. 23 ›› Issue (5): 82-88.

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Research on formation conditions of V-shaped debris flow with impact and deposit

TANG Hong-mei, CHEN Hong-kai   

  1. Inst.of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074,China
  • Received:2003-12-03 Online:2004-10-15 Published:2015-05-18

冲淤变动型沟谷泥石流形成条件研究

唐红梅,陈洪凯   

  1. 重庆交通学院岩土工程研究所,重庆400074
  • 作者简介:唐红梅(1968—),女,重庆合川市人,副研究员,从事岩土工程研究
  • 基金资助:
    交通部基金项目( 95060233) 、交通部人才基金项目( 95050508) 和国家十五攻关项目( 2001BA604A02- 3) 资助

Abstract: As one type of debris flow along highway to trigger disaster in west China, V-shaped debris flow with impact and deposit usually impact and bury structures of highway. The authors make some studies to formation conditions of the debris flow from geomorphology, material and dynamic features in this paper. It are identified that both formation region with greater area and less than 5.0 of length and width ratio, steeper pass region and gently deposit region are geomorphologic conditions for the de...

Key words: V-shaped debris flow with impact and deposit, highway, precipitation constitute, temperature change

摘要: 冲淤变动型沟谷泥石流是我国西部公路沿线致灾最强烈的泥石流类型,通常表现为对公路构建筑物的冲击 和淤埋毁损。笔者从地貌条件、物源及动力条件3方面出发对该类泥石流的形成条件进行了研究。泥石流沟长宽比 小于50并且具有较大的形成区、大比降的流通区、宽缓的沉积区是该类泥石流形成的地貌条件;丰富且稳定性差 的第四系松散堆积物及工程弃渣是该类泥石流形成的物质条件;前期降雨量和降雨强度的有机结合或较高的日温 度是该类泥石流形成的动力条件。研究成果丰富了公路泥石流学的科学内涵

关键词: 冲淤变动型沟谷泥石流, 公路, 降雨组合, 温度变化

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