Study Of Movement Mechanism And Happened Of Debris Flow Of Hillslope

It was based on that Beibei in Chongqing is located on parallel mountain range and vale in the east of Sichuan basin in this text. Debris flow of hillslope were developed in unusual big rainstorm in the mountainous region and it had brought heavy economy expense. In order to decrease effectively and defend successfully economy expense for disaster of debris flow of hillslope, construct harmonious society, build favorable environment of human being resident and accelerate consecutive development of society. It was taken unusual big rainstorm of "7.19" incident in 2003 for example. After the investigations on the forty -eight debris flows in Bei-bei, we made out a great of experiments in the lab and obtained several sorts of several ten-thousand datum. By using the combinative way of determine the nature and fix quantify and compositive making use of SPSS and MAPINFOR ,it has been the important base so that we could analyze and study completely movement mechanism and happened of debris flow of hillslope in Bei-bei. Conditions has been created for the decreasing and defending disaster, the blankness of studying fix quantity has been filled up and the reference of studying fix quantity has been provided in debris flow of hillslope in Chong-qing city .especially in south west area.This article includes seven parts:First part is a brief introduction about the debris flow of hillslope, the research history of the ground subsidence both at home and abroad, and current situation, and the primary studying method about the debris flow of hillslope .Second part is an introduction about the background of the researched problem selected, the significance of studying about the debris flow of hillslope, studying content and the research approaches adopted.The third part is a brief introduction of the overview of the research area, mainly including the nature status, economy status of society and the distribution of debris flow of hillslope.In the fourth part is a analysis of formative postulate of debris flow of hillslope. On the base of lots of investigations, we studied scraping substance, geologic construction, lithology and weathering process. On the one hand, we lucubrated the characters of the terrain and relief combining with the map in 1:5000, such as average gradient, vertical channel and vale, the length of slope, drainage area, the elements of drainage form and the incision of the drainage etc. On the base of taking soil samples of typical debris flow of hillslope, we exerted the way of Jia-zhong densimeter, then we rectified its outcomes through new granularity analysis instrument and finally...