中国地质灾害与防治学报
中國地質災害與防治學報
중국지질재해여방치학보
THE CHINESE JOURNAL OF GEOLOGICAL HAZARD AND CONTROL
2009年
4期
31-35
,共5页
江岳安%王运生%万永文%吴峻峰%孙耀明%胡芹龙%王晓欣%韩丽芳%李月美
江嶽安%王運生%萬永文%吳峻峰%孫耀明%鬍芹龍%王曉訢%韓麗芳%李月美
강악안%왕운생%만영문%오준봉%손요명%호근룡%왕효흔%한려방%리월미
泥石流%动力学特征%土体%危险性%四川康定
泥石流%動力學特徵%土體%危險性%四川康定
니석류%동역학특정%토체%위험성%사천강정
debris flow%dynamics feature%soil mass%risk degree%Kangding County%Sichuan Province
本文在实地调查江咀沟地质背景、形成区物源特征、流通区沟道特征及堆积区的结构特征和成份特征基础上,系统分析了江咀沟泥石流的动力学特征、输砂量以及危险性.研究表明,受瓜达沟断层和昌昌断层破碎带、岩性、岩体结构、新构造运动、地形及人类工程活动的综合影响,沟内物源丰富,流通区狭窄,沟道堵塞较为严重,为高度危险泥石流沟,50年一遇洪水泥石流输砂量为16.78×10~4m~3,对下游水电库区淤积有一定影响,但程度有限.
本文在實地調查江咀溝地質揹景、形成區物源特徵、流通區溝道特徵及堆積區的結構特徵和成份特徵基礎上,繫統分析瞭江咀溝泥石流的動力學特徵、輸砂量以及危險性.研究錶明,受瓜達溝斷層和昌昌斷層破碎帶、巖性、巖體結構、新構造運動、地形及人類工程活動的綜閤影響,溝內物源豐富,流通區狹窄,溝道堵塞較為嚴重,為高度危險泥石流溝,50年一遇洪水泥石流輸砂量為16.78×10~4m~3,對下遊水電庫區淤積有一定影響,但程度有限.
본문재실지조사강저구지질배경、형성구물원특정、류통구구도특정급퇴적구적결구특정화성빈특정기출상,계통분석료강저구니석류적동역학특정、수사량이급위험성.연구표명,수과체구단층화창창단층파쇄대、암성、암체결구、신구조운동、지형급인류공정활동적종합영향,구내물원봉부,류통구협착,구도도새교위엄중,위고도위험니석류구,50년일우홍수니석류수사량위16.78×10~4m~3,대하유수전고구어적유일정영향,단정도유한.
Based on the survey of the Jiangzui valley, including its geological background, material factors of forming region, characteristics of circulation area, and structural characteristics and composition features of pile area, the article systematically analyzes the debris flow dynamics feature, soil mass and the risk. The research shows that in the comprehensive influence of fracture zone, lithology, rock mass structure, neotecetonics, terrain and human engineering activities of Guada valley fault and Changchang fault, Jiangzui Valley has abundant materials, its circulation area is narrow, and channel is blocked seriously. It makes the Jiangzui Valley a high-risk debris flow valley. The soil mass is 16.78 × 10~4m~3 in the condition of the debris flow happens once in 50 years, it has a certain but limited influence on the downstream hydroelectric station.
