东川公路泥石流形成环境和致灾特点研究..docx

摘要公路作为一种重要的基础工程，连接着各个地区，在文化交流、经济发展、思想进步、民族团结等方面都起着重要的作用。近年来，西南部地区经济高速发展，人口流动量大，能源物质大量的输入输出，对各种交通运输工程的需求量特别大，公路在其中承担着重要的角色。西南部山区是我国公路泥石流的高发区，尤其是项目所在的东川地区，很多山体风化严重，岩层裸露，植被覆盖率低，松松破碎物质储量丰富，降雨集中，多暴雨，是孕育泥石流的天堂。区域内存在着数以百计的泥石流，其中不乏规模大、爆发频率高、危害性严重的泥石流，泥石流的存在对区域内的公路工程建设有着很大的影响。 本论文依托国道 G85 昆明市功山至东川高速公路勘察设计项目开展研究，以边坡防护设计为目标，从研究泥石流入手。在公路设计阶段，结合公路工程线位和穿越方式，进行边坡防护设计和边坡防护技术比选，考虑项目区域内泥石流对公路工程的影响。 关键词：公路，泥石流，边坡防护技术 AbstractHighway as an important infrastructure, connected every region, in the cultural exchange and economic development in such aspects as ideological progress, national unity and plays an important role. In recent years, southwest economy high speed development, the population flow, energy material, a large number of input and output, the demand for all kinds of transportation engineering, particularly large highway an important role in it. Southwest mountainous area is a high incidence zone of our country highway landslide, especially dongchuan region, where many mountain weathering, bare rock, vegetation coverage rate is low, easily broken material is abundant, rainfall concentrated, more heavy rain, is the paradise of debris flow. Area there are several hundreds of landslides, including size, severe outbreak of high frequency and harmfulness of debris flow and debris flow exists in the region of highway engineering construction has a great influence.Work in kunming, in this paper, based on national highway G85 mountain to dongchuan highway survey and design project of research, aiming at slope protection design, from the perspective of the study of debris flow. In the stage of highway design, combined with highway engineering line and through this way, for slope protection design and slope protection technology comparison, considering the influence of debris flow to the highway engineering project area.KEY WORDS: highway, debris flow, slope protection technology目录摘要11东川公路泥石流形成环境和致灾特点研究11.1东川公路泥石流形成的影响因素11.1.1丰富的物源11.1.2充足的水源21.1.3地形地貌21.1.4人为因素31.2东川公路泥石流的致灾特点31.2.1