IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
有限物源流域不同规模的泥石流频率分析——以四川黑水县罗坝街泥石流沟为例
Alternative TitleDifferent Scale Debris Flow Frequency for Limited Triggering Earth ——Loubajie Debirs Flow Valley
Language中文
陈宁生1; 陈清波2; 王晓颖3
Corresponding Author陈宁生
2002
Source Publication第三届海峡两岸山地灾害与环境保育学术研讨会 ; 海峡两岸山地灾害与环境保育研究第三卷
Pages115-123
Conference Date2002-7-26
Conference Place云南昆明
Funding Organization中国水土保持学会
Abstract

在分析有限物源的不同规模泥石流频率难以用暴雨频率这一单因素确定的前提下,提出用综合分析的办法确定其频率.以黑水县罗坝街沟1933年、1983年、1984年和1997年泥石流为研究物件,对其流量进行测量和分析计算.从降雨频率与泥石流频率的巨大差异,可知此类泥石流的暴发频率与泥石流的频率差别极大.从历史调查法,地震与土源和产流关系分析法和推理公式与水科院公式的计算类比推算出罗坝街沟1933年的泥石流远大于百年一遇,1983年的泥石流为百年一遇,1984年的泥石流为50年一遇,1997年泥石流为10年一遇.从一系列的分析计算可知,有限物源流域不同规模的泥石流频率的确定需要考虑多种因素,并进行综合分析.

Other Abstract

As there are some problems to check the debris flow frequency with the precipitation frequency in earth source limited area. It is suggested that judging the frequency by comprehesive way. Applying the Loubajie valley debris flow in 1933, 1983, 1984 and 1977 as study cases we analyzed the basin characters, the debris flow basic nature. It is found that the debris flow frequency of Luojiba is different from the frequency of local precipitaion. Therefore we have to use the comprehensive way to check the real frequency of debris flow. First, the history of debris flow are gotten to check the debris flow frequency; Secondly, the carthquake frequency is studied and be used to compared the debris flow frequency; Thirdly different hydraulic calculation ways are used to calculate the debris flow frequency. At last it is make sure that the frequency of debris flow in 1933 is more frequent than 100 years a time; that of 1983 is 100 years a time; that of 1984 is 50 years a time and that of 1997 is 10 years a time.

Keyword有限物源区 泥石流 频率
Subject AreaP642.23
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18511
Collection成都山地所知识仓储(2009年以前)
山地灾害与地表过程重点实验室
Affiliation1.中国科学院水利部成都山地灾害与环境研究所
2.四川清源工程咨询有限公司
3.四川大学建筑与环境学院
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
陈宁生,陈清波,王晓颖. 有限物源流域不同规模的泥石流频率分析——以四川黑水县罗坝街泥石流沟为例[C],2002:115-123.
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