泥石流暴發(fā)頻率與其形成區(qū)巖性的相關性研究.pdf

1、成都理工大學碩士學位論文泥石流暴發(fā)頻率與其形成區(qū)巖性的相關性研究姓名：魯科申請學位級別：碩士專業(yè)：地質(zhì)工程指導教師：余斌20100601成都理工大學碩士學位論文 II Study the relationship between frequency of debris flows and the lithology in channels of debris flows Introduction of the author: LuK

2、e, male, was born in October, 1985 whose tutor was Professor Yubin . He graduated from Chengdu University of Technology in Geological Engineering major and was granted the Master Degree in June, 2010. Abstract The area

3、of our country of mountainous region is big , geological ambient conditions is complex, geological hazards type is complete, growth measures big, it is broad to divide into cloth cover, serious threat the life property s

4、afety of people. Debris flow as the one of the type of geological hazards is a kind of course and phenomenon that burst natural calamity changes , is to be situated between go down , collapse wait for piece body sport an

5、d carry a series of continuously floating phenomenon between sand current sport, have frequently the course that forms complex break out suddenly , on-coming force violent last short destroy power maximum characteristic,

6、 as the economic construction of mountain area causes maximum damage. The debris flow calamity of our country is some few debris flow campaign on world most strong , calamity the most serious national one. Therefore, peo

7、ple pay attention to hope to make people avoid its harm through foreseeing forecast for the research work of debris flow calamity in recent years more. And what break out frequency for debris flow foresee always since is

8、 difficulty , this paper only breaks out frequency under so a background for debris flow related research work. The broken out frequency of debris flow can be divided into the rate of high frequency, the rate of interme

9、diate frequency and low frequency are led debris flow 3 kinds, the rate of high frequency and the rate of intermediate frequency of the debris flow are easy to be discovered by people, do not be easy to form calamity, an

10、d the rate of low frequency of the debris flow occurs frequency low, is easy by people place overlooks , so under special condition after breaking out debris flow, often form maximum calamity. This paper is with the purp

11、ose of foreseeing debris flow to break out frequency , supposes rock this single factor and the correlation that breaks out frequency: The lower frequency, the more solid rock. On this foundation, first, select the SiChu

12、an western area of 17 debris flow ditchs for the study, through looking up document, determine each ditch s break out frequency, then, focal point carries out the inquiry of open country, investigate in detail the rock t

13、hat each ditchs forms district or the accumulation district pellet of “Cu Hua Ceng“ etc., through analysing for the data of 17 ditchs inquiry, combination rock solid level grades , we reach the feature that debris flow a