冲积扇油气管道坡面侵蚀灾害因子分析

doi:10.11885/j.issn.1674-5086.2017.12.08.01

西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (6): 157-164.DOI: 10.11885/j.issn.1674-5086.2017.12.08.01

冲积扇油气管道坡面侵蚀灾害因子分析

王庆栋¹, 汪鹏飞², 王子帅¹, 潘松杰¹, 李策策¹

1. 兰州大学西部灾害与环境力学教育部重点实验室, 甘肃兰州 730000;
2. 中国石油西部管道公司, 新疆乌鲁木齐 830013

收稿日期:2017-12-08 出版日期:2018-12-01 发布日期:2018-12-01
通讯作者: 汪鹏飞,E-mail:wangpengfei@petrochina.com.cn
作者简介:王庆栋,1991年生,男,汉族,甘肃靖远人,博士,主要从事油气储运工程线路选址及风险性评价、公路与铁路地质灾害防治与评估、特殊土力学性质等方面的研究。E-mail:wangqd15@lzu.edu.cn;汪鹏飞,1976年生,男,汉族,山西灵丘人,工程师,主要从事长输油气管道工程地质灾害风险、管道工程等方面管理工作。E-mail:wangpengfei@petrochina.com.cn;王子帅,1995年生,男,汉族,河南周口人,硕士研究生,主要从事油气储运地质灾害调查,管道安全评估等方面的研究。E-mail:848283453@qq.com;潘松杰,1994年生,男,汉族,甘肃岷县人,硕士研究生,主要从事油气储运工程地质灾害分析、评价等方面的研究。E-mail:1332583321@qq.com;李策策,1992年生,男,汉族,河北石家庄人,硕士研究生,主要从事油气储运工程管道勘察、风险性评价等方面的研究。E-mail:13021493515@163.com
基金资助:
中国石油天然气股份有限公司西部管道分公司科技开发项目（XG-2015-001）

Analysis of Disaster Factors of Slope Erosion for Oil and Gas Pipelines Crossing Alluvial Fans

WANG Qingdong¹, WANG Pengfei², WANG Zishuai¹, PAN Songjie¹, LI Cece¹

1. Key Laboratory of Mechanics on Western Disaster and Environment Mechanics, Lanzhou University, Lanzhou, Gansu 730000, China;
2. West Pipeline Company, Petrochina, Urumqi, Xinjiang 830013, China

Received:2017-12-08 Online:2018-12-01 Published:2018-12-01

摘要/Abstract

摘要： 坡面侵蚀是管道破坏的重要地质灾害之一，且其过程复杂，各指标因子相互作用。基于熵权法确定指标权重，距出水口距离所占权重最高，达24%。通过GIS沿管道两侧50 m建立缓冲区，利用空间加权叠加分析，得到缓冲区侵蚀强度。以灾害点侵蚀强度为统计指标，对坡面侵蚀的抗冲性、渗透性、植被、坡度、距出水口距离、水量6类指标进行统计分析。结果表明，坡面侵蚀强度与渗透性、坡度、水量呈现较好的正相关；抗冲性、植被与侵蚀强度具有一定程度的负相关关系；整体而言，侵蚀强度随距出水口距离的减小变高。

关键词: 坡面侵蚀, 地理信息系统, 冲积扇, 熵权法, 侵蚀强度

Abstract: Slope erosion is one of the major geological disasters that causes pipeline damage. The damage induced by slope erosion involves a complex process and is affected by multiple indicator factors. In this study, the weights of each indicator factor are determined based on the entropy weight method. The distance to the water outlet is found to possess the highest weight of 24%. Furthermore, a 50 m buffer zone is constructed along the two sides of pipeline using GIS. The erosion strength of the buffer zone is obtained by performing a spatial weight stacking analysis. Taking the erosion strength of the disaster site as a statistical indicator, we performed statistical analyses of six parameters, including the impact resistance of slope erosion, permeability, vegetation, slope, distance to water outlet, and water volume. The results show that the slope erosion strength is positively related to the permeability, the slope, and the water volume. The impact resistance and vegetation are found to be negatively related to the erosion strength. In summary, the erosion strength becomes stronger with decreasing distance to the water outlet.

Key words: slope erosion, geographic information system, alluvial fan, entropy weight method, erosion strength

中图分类号:

TE89

王庆栋, 汪鹏飞, 王子帅, 潘松杰, 李策策. 冲积扇油气管道坡面侵蚀灾害因子分析[J]. 西南石油大学学报(自然科学版), 2018, 40(6): 157-164.

WANG Qingdong, WANG Pengfei, WANG Zishuai, PAN Songjie, LI Cece. Analysis of Disaster Factors of Slope Erosion for Oil and Gas Pipelines Crossing Alluvial Fans[J]. 西南石油大学学报(自然科学版), 2018, 40(6): 157-164.

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冲积扇油气管道坡面侵蚀灾害因子分析

Analysis of Disaster Factors of Slope Erosion for Oil and Gas Pipelines Crossing Alluvial Fans

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