色多沟泥石流动力特征及危险性评估研究  

Dynamics Features and Hazard Assessment of Mud-rock Flow in Seduogou

作　　者：舒志乐[1] 史宝宁 张德宇[1] 

机构地区：[1]西华大学建筑与土木工程学院,成都610039

出　　处：《四川理工学院学报（自然科学版）》2016年第6期70-74,共5页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：国家自然科学基金创新群体基金(50621403);教育部春晖计划项目(14206503);西华大学重点基金项目(z1120635)

摘　　要：黑水县是"5·12"汶川特大地震重灾区之一,此次地震不仅给当地造成了巨大的经济财产损失,同时还引发了较多的次生地质灾害,如泥石流、滑坡、崩塌等。以黑水县知木林村的泥石流形成条件为背景,详细介绍了该区域泥石流发生的地形,物源和水源条件,并且结合该地区泥石流勘测报告,以现场配浆法和查表法分别计算了该地区的泥石流容重,通过对比最终确定以查表法得到的数据作为色多沟泥石流发生时的泥石流容重,并以此计算出泥石流发生时的流速,流量以及峰值流量等数据,随后采用多因子综合判定模式对色多沟泥石流进行了危险性评估,得出该地区泥石流的发展正处于壮年阶段,危险等级为高度危险。在治理色多沟泥石流流域时应该主要采用以排为主、停排结合的总体原则。Heishui county is one of the areas hit hardest by the＂5·12＂Wenchuan earthquake. The earthquake not only caused a lot of economic damage to property,at the same time also inspired more debris flows,landslides,collapses and secondary geological disasters. From the formation of the conditions of mud-rock flow in the Zhimulin village of heishui county,the topography,provenance and water conditions of mud-rock flow in the region are detailed. Combinated the survey report in the mud-rock flow area,the scene with slurry method and look-up table method are used to calculate the mud-rock flow in the region. The data got by the look-up table method is taken as the debris flow concentration when mud-rock flow gully occurs;and by comparing the data,the mud-rock flow velocity,flow rate and peak flow etc. are calculated. Then using multi factor comprehensive decision model of multi colored debris flow of risk assessment,it is shown that the development of the area of mud-rock flow are in the prime stage with high risk of risk rating. Finally,it is proposed that the general principle of the main use of the combination of row and stop arrangement should be adopted in the management of Seduogou mud-rock flow.

关 键 词：色多沟 泥石流 动力特征 危险性评价 

分 类 号：TU451[建筑科学—岩土工程]