Screening of debris flow risk factors and risk evaluation based on rank correlation

CHEN Peng-yu; QIAO Jing-shun; PENG Zu-wu; XIE Kai; YU Hong-ming

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Screening of debris flow risk factors and risk evaluation based on rank correlation

更新时间：2026-06-25

- Screening of debris flow risk factors and risk evaluation based on rank correlation
- Vol. 34, Issue 5, (2013)
- 作者机构：
  
  1. 中国地质大学（武汉）工程学院,武汉,430074
  2. 黄淮学院建筑工程学院,河南,驻马店,463000
- 作者简介：
- 基金信息：
- DOI：
  CLC： P694
- Online First：14 May 2013，
  
  Published：2013
- 稿件说明：
移动端阅览
CHEN Peng-yu, QIAO Jing-shun, PENG Zu-wu, et al. Screening of debris flow risk factors and risk evaluation based on rank correlation[J]. 2013, 34(5).
DOI：

CHEN Peng-yu, QIAO Jing-shun, PENG Zu-wu, et al. Screening of debris flow risk factors and risk evaluation based on rank correlation[J]. 2013, 34(5). DOI：

摘要

针对泥石流危险因子之间的单调性差异和主次危险因子之间的非线性关系，提出了结合散点图和Spearman等级相关评价泥石流主次危险因子相关性的方法，以散点图作为危险因子初步筛选的依据，以Spearman等级相关系数作为危险因子最终筛选和权重分配的依据。以云南省37条泥石流沟的基础数据为例，建立了泥石流危险度综合评价模型，以此计算东川市12条泥石流沟的危险度评价结果，计算结果表明，新方法比经典方法更能体现物源条件与动力条件对泥石流危险性的贡献，从而证明了新方法的合理性。

Abstract

In view of the difference in the monotonicity for risk factors and the nonlinear relationship between the primary risk factors and secondary risk factors in the evaluation of debris flow risk

a new method to evaluate the correlation between the primary risk factors and secondary risk factors by using scatter diagrams and Spearman rank correlation is proposed. In the method

the scatter diagrams are used to analyze the relationship between the primary risk factors and the secondary risk factors

and on this basis

a preliminary screening of the secondary risk factors can be made. Spearman coefficients of rank correlations are used to further screen the secondary risk factors and identify their weights. With the new method

a new formula of debris flow risk is established by using the basic data of 37 debris flow gullies in Yunnan province. Finally

the new formula is taken to calculate the debris flow risk of 12 debris flow gullies in Dongchuan city. The results verify that the source conditions and dynamic conditions are significant to the potential risk of debris flows

so as to justify the rationality of this method.

关键词

Keywords

references

Views

1744

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Engineering vulnerability assessment for bridges and tunnels harmed by debris flow hazards

Fractional nonlinear creep constitutive model of salt rock

Experiment study of fractal feature and relationship between fractal dimension and permeability coefficient of gravelly soil in debris flow source area

Development of software for nonlinear analysis of single pile response based on load transfer method and its application

Debris flow susceptibility analysis based on theories of minimum entropy and uncertainty measurement

Related Author

XU Lin-rong

CHEN Shu-yang

CAO Lu-lai

WU Fei

LIU Jian-feng

WU Zhi-de

BIAN Yu

ZHOU Zhi-wei

Related Institution

School of Civil Engineering, Central South University

Key Laboratory of Energy Engineering Safety and Disaster Mechanics of Ministry of Education, Sichuan University

College of water Resources and Hydropower, Sichuan University

Langfang Branch, China Research Institute of Petroleum Exploration and Development

Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources

AI问答

⁰