长江科学院院报2012，Vol.29Issue(5)：16-20,31,6.
“水石分离”在泥石流灾害防治工程中的应用
Separation of Stone and Water to Prevent Debris Flow
文联勇 1谢宇 2李东 2王勇2
作者信息
- 1. 成都理工大学环境与土木工程学院,成都610059
- 2. 四川省地质工程集团公司,成都610017
- 折叠
摘要
Abstract
As the secondary disaster after the megaquake on May 12,2008, a heavy debris flow broke out on August13, 2010 in Wenjiagou village with its one-time discharge amount up to 4. 6 million cubic meters and maximum depth of gully bed downcutting over 70 meters. This catastrophic debris flow, together with complex geological conditions , makes it challenging to select and design the control scheme. Based on analysis of the formation and source of the debris flow, we demonstrated the effects and limitations of control schemes involving drainage, obstructing, source consolidation, flow cutoff and diversion. Through comparison, we proposed the scheme of separating the upstream water flow with middle stream stone by flow diversion tunnels. The project consisted of diversion tunnel, catch basin, diversion dike, and screening grids at the bottom of the catch basin. The project was proved to be effective through rainfalls of 165mm, 130mm, 182.4mm in 2011, This research provides a new approach and could be referential for the control over large-scale debris flow.关键词
泥石流/水石分离/防治工程/地质灾害/引水隧洞Key words
debris flow/ separation of stone and water/ prevention project/ geohazard/ diversion tunnel分类
资源环境引用本文复制引用
文联勇,谢宇,李东,王勇..“水石分离”在泥石流灾害防治工程中的应用[J].长江科学院院报,2012,29(5):16-20,31,6.
