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Features And Treatment Measures Of Debris Flow In Tuanchengzi Village

Posted on:2021-05-28Degree:MasterType:Thesis
Country:ChinaCandidate:Y B ChenFull Text:PDF
GTID:2480306542473414Subject:Geological Engineering
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Debris flows are sudden natural disasters in mountain valleys,triggered by rainstorms,melting ice and snow,and other water sources.They have strong impact and destructiveness.Due to the complex terrain and geological conditions,the serious destruction of soil vegetation,and the impact of human engineering activities such as mining of minerals,bad geological disasters such as debris flows are widely distributed and occur frequently.Therefore,research on the development characteristics and treatment measures of the mountain torrent and debris flow disaster is of important practical significance for reducing the hazards of the mountain torrent and debris flow disaster,promoting local economic and social development,and maintaining social s Tab.ility.(1)the thesis,through data collection and field surveys,has ascertained the natural geography and environmental geological background of the mud-rock flow ditch watershed in Tuanchengzi Village,and provided basic data for the research on the development characteristics of mud-rock flow disasters and control measures.(2)the thesis uses a combination of field experiment and indoor comprehensive analysis to study the formation conditions of the debris flow in Tuanchengzi Village.The river erosion in the debris flow ditch is strong,the slope s Tab.ility is poor,and collapses and landslides are easy to form.At the same time,the study area exists.A large number of artificial sources,solid sources accumulate in the ditch.It is believed that when the debris flow ditch encounters concentrated rainfall(heavy rain)with a short period of time and high intensity,torrents will be generated,and strong kinetic energy will be generated in the narrow,steep and deep valleys.A mudslide disaster occurred.(3)the paper analyzes the fluid flow characteristics of the debris flow,and concludes that the debris flow in Tuanchengzi Village is a high-frequency,sparse,rainstorm,and valley-type debris flow.(4)on the basis of the risk assessment,according to the disaster characteristics of the mud-rock flow in Tuanchengzi Village and the existing treatment plan,a variety of prevention and control engineering plans are proposed and the engineering treatment design is carried out.
Keywords/Search Tags:debris flow, formation conditions, risk assessment, prevention measures
PDF Full Text Request
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