摘要
GIS技术在地质灾害领域得到了越来越广泛的应用。采用节理玫瑰花图和赤平投影法,通过对三峡库区某区域岩质顺层边坡的大量节理裂隙的统计和主要结构面组合切割关系的分析,选取12个坡体组合计算点及其坡体组合类型,并利用ArcGIS软件依据岩层倾向一致性原则进行识别与处理,从而确定了每个坡体组合计算点所能影响的区域范围,最终得到研究区域范围内岩质顺层边坡坡体组合类型的空间分布,可为岩质边坡稳定性评价提供依据。
GIS technology has been applied more and more to the field of geological hazards.This paper makes statistical analysis of a large number of joints and fractures of bedding rock slope and analyzes the integrated relationship of the major structural planes by using the method of joint rose diagram and stereographic projection.Based on this,the paper determines 12 calculation points of the slope combination and their combinated types.Then the paper uses ArcGIS to search the influence scope of the calculation points with the principle of consistency of the slope and rock stratum inclination directions.Finally,the paper obtains the spatial distribution of the combination types of the bedding rock slope in the studying area.The paper can provides important reference for the analysis of rock slope stability.
出处
《安全与环境工程》
CAS
2017年第4期47-51,共5页
Safety and Environmental Engineering
基金
广西科技开发课题项目(桂科能15122001-3-18)
广西高校符号计算与工程数据处理重点实验室项目
关键词
岩质顺层边坡
坡体组合类型
空间分布
赤平投影
GIS
节理裂隙统计
bedding rock slope
slope combination type
spatial distribution
stereographic projection
GIS
statistic of joint and fracture
