毕业设计（文）-泥石流勘查设计.doc

本科生毕业设计PAGE PAGE 15摘 要近年来，泥石流的频发给山区人民的日常生活和山区的经济建设造成了巨大的危害。本文以河北省某县、泥石流为例进行勘查设计。、在历史上没有发生过泥石流，沟域内植被较好。但从2005年至今，由于沟域内铁矿开采，植被遭到破坏，大量矿渣被堆积在沟道内及岸坡上，堵塞了原沟道，新增大量松散固体物源，在暴雨条件下发生大规模泥石流灾害的危险性大大增加，对中下游沟道旁、村居民区居民的生命财产安全构成威胁。本文论述了泥石流勘查设计工作的具体内容。并通过查明勘查区的地质环境条件，分析泥石流的形成条件和基本特征，提出来泥石流勘查工作的部署。运用地形测量，地质调查和测绘的方法，槽探和钻孔的勘探手段查明该区泥石流的发展程度，并提出合理的防治方案。、泥石流的治理工程的关键在于拦挡固源和降低泥石流水动力条件，尽可能避免弃渣堆积体物源启动。基于此，、中上段治理工程主要通过布置拦挡工程，而在、下游居民区处因地形条件限制，主要采用排导措施，起到保护、居民区的目的。关键词： 沟域形态 ；形成机制 ； 拦挡工程 ；排泄能力ABSTRACTIn recent years, debris flows caused great harm to the daily life of people who live in the mountainous area and the economy construction of mountainous area as the result of its frequent happening. The destruction of ecological environment increases the happening of debris flows. This article takes the debris flows of Chejiangou in Pingshan County of Hebei Province for example to conduct a survey of design. There never landslides in the history of Chejiangou and vegetation is better in the ditch area. However, since 2005, due to the iron mining in the ditch, the vegetation there was destructed and a large number of slags accumulated in the channel and bank which blocked the original channel. Added a large number of loose solid source, the risk of large-scale debris flows occurrence in heavy rain conditions is greatly increased which pose a threat to the life and property safety of Chejiangou neighborhood residents who live in the middle and lower reaches of the ditch road. This article discusses the specific content of the debris flow exploration and designation work. And to analyze the debris flow formation conditions and basic characteristics and proposed deployment of the debris flow survey work through the identification of geological environmental conditions in exploration area. We use topographic survey, geological survey and mapping, trenching and drilling exploration tools to identify the degree of development of the area of debris flow, and put forward reasonable prevention and treatment