Formation and Characteristics of Mine Debris Flows Based on Dynamic Conditions——Taking Hougou Gully in Shimian County for an Example
详细信息
- 责任者：Ni Huayong (Chengdu Institute of Geology and Mineral Resources ; CGS ; Chengdu 610081 ; China) ; Zheng Wanmo
- 刊名：Journal of Mountain Science
- 出版年：2010
- 卷期：28(4)
- 关键词：泥石流 ; debris flows ; 矿山环境 ; mine environment ; 四川 ; Sichuan Province
- 页码：p.470-477
- 图表：5 illus., 3 tables, 10 refs.
- 分类号：1800
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
摘要
Hougou gully in Shimian County can be seen as a representative of the occurrence of mine debris flow. Three kinds of causes including surface eroding of mine slags on slopes, channel eroding of mine slags in gully beds and lateral eroding of tailing mine slags at gully mouth consists of the typical formation process of mine debris flows such as Hougou debris flow. Dynamical conditions of both floods and debris flows under different frequency were calculated respectivly and it can be proved that the tailing mine slags are difficult to be eroded only by flood. Different natural debris flows, five characteristics of mine debris flows were presented in this paper in the following forms: 1) centrality and fixity of solid material supplying; 2) more easier and frequent origination of occurrence process; 3) monotony and reiteration of moving process; 4) interacting and chaining of disaster-making process; and 5) controllable and integrative of prevention process.