土工基础

土工基础 ›› 2020, Vol. 34 ›› Issue (5): 565-567.

• 专题论述 • 上一篇    下一篇

桂北山区泥石流形成及发生成因分析——以灌阳县仁合村泥石流为例

董兵红，刘之葵，李善梅，李屹然   

  1. （桂林理工大学 土木与建筑工程学院，广西桂林 541004）
  • 收稿日期:2019-10-17 修回日期:2019-10-26 出版日期:2020-10-20 发布日期:2020-11-02
  • 作者简介:董兵红（1994-），男，硕士，研究方向为地质工程。
  • 基金资助:
    国家自然科学基金（41867039）；广西自然科学基金（2017GXNSFAA198238）

Analysis of Debris Flow in Northern Guangxi Using Mudslide in Renhe Village, Guanyang County as an Example

DONG Binghong, LIU Zhikui, LI Shanmei, LI Yiran   

  1. (School of Civil and Engineering and Architecture, Guilin University of Technology, Guilin 541004)
  • Received:2019-10-17 Revised:2019-10-26 Online:2020-10-20 Published:2020-11-02

摘要： 泥石流是最为常见的山区地质灾害之一，是降水在向斜沟或背斜坡上形成的一种含有大量细颗粒、粗颗粒或砾颗粒等坚硬物质的特殊流体。泥石流具有同发性、周期性及群发性等灾害特征。泥石流的成因分析是预防及治理泥石流灾害的根本。以桂北山区灌阳县仁合村委蒋家屯泥石流为研究对象，结合现场详细勘察数据，基于地形地貌、岩性、地质构造、气象条件等多方面分析该处泥石流发生的原因。结果表明，陡峭的地形、松散的岩性、断裂带的作用、古滑坡造成的堰塞湖以及短时间强降雨都是造成该泥石流发生的主要因素。

关键词: 泥石流, 地质灾害, 成因

Abstract: Debris flow is one of the most common geological hazards in mountainous areas. It is a special fluid containing large quantities of fine, coarse or gravel sized particles that are formed by the precipitation in synclinal gullies or back slopes. Debris flow has the characteristics of cooccurrence, periodicity and mass occurrence. The cause analysis of debris flow is fundamental to the of preventing and controlling debris flow hazard. This paper presents the Jiangjiatun debris flow in Renhe Village of Guanyang County in the mountainous area of northern Guangxi. The cause of debris flow in this area is analyzed based on the topographical features, stratigraphic lithology, geological structure and meteorological conditions. The results show that the steep terrain, loose and weak lithology, fault zone, quake lake caused by ancient landslide and short period of heavy rainfall are the main factors causing the mudslide.

Key words: Mud Flow, Geological Hazards, Formation Mechanism

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