某高海拔地区泥石流防治方案实例

A Certain Instance of Debris Flow Prevention and Control Plan in High Altitude Area

某泥石流沟地处四川省甘孜州理塘县,沟域最高点位于源头高程为4710m,沟口与下游河流交汇处高程为3217m,相对高差1493m。该泥石流沟类型以往属低频泥石流,目前进入活跃期,约每10年爆发一次泥石流灾害。根据泥石流沟所处地理地质环境并结合保护对象,对其进行拦挡+排导的方式进行综合治理,取得了良好的社会效益。

A certain debris flow gully is located in Litang county Ganzi prefectures in Sichuan province. The highest point of the valley is at the source domain apogee reaching 4710 m, the height of intersection of downstream river and outlet is 3217 m, the relative height difference is 1493 m. The kind of the debris flow belonged to a low frequency type in the past, but it turns into the active period, breaking out into once debris flow disasters every 10 years. According to the geographical geological environment of debris flow gully and combining the protection object, the comprehensive treatment was adopted bar block and dredging, which achieved a good social benefits.