甘肃省环县天池乡干沟不稳定斜坡地质灾害特征及治理研究  

Study on geological hazard features and control of Gangou unstable slope in Tianchi Town,Huanxian County

作　　者：陈昊东 CHEN Haodong(The Second Institute of Geology and Mineral Exploration,Gansu Bureau of Geology and Mineral Resources,Lanzhou 730020,Gansu,China)

机构地区：[1]甘肃省地质矿产勘查开发局第二地质矿产勘查院,甘肃兰州730020

出　　处：《资源信息与工程》2022年第3期115-117,共3页Resource Information and Engineering

摘　　要：天池乡地处陇东黄土高原,属黄土高原丘陵沟壑区。由于黄土的结构松散、具大孔隙和垂直节理、遇水易软化崩解等特殊性,发育了大量的不稳定斜坡,危害当地人民群众的生命财产安全。本文以天池乡干沟不稳定斜坡为例,分析其地质结构基本特征及稳定性,通过工程地质条件分析,采用地下、地表排水+坡脚回填反压+挡土坝的综合防治措施来治理该不稳定斜坡,可获得较好的经济、社会和环境效益。Tianchi Township is located in the Loess Plateau of Eastern Gansu province,which belongs to the hilly and gully region of the Loess Plateau.Due to the loose structure of the loess,large pores,vertical joints,water softening and disintegration,a large number of unstable slopes were developed,which endangered the life and property safety of local people.This paper took Gangou unstable slope in Tianchi township as an example to analyze the basic features and stability of its geological structure.Through the analysis of engineering geological conditions,the comprehensive prevention and control measures of underground and surface drainage+slope foot backfill and backpressure+retaining dam were adopted to treat the unstable slope.The scheme could achieve excellent economic,social and environmental benefits.

关 键 词：不稳定斜坡 地质特征 治理方案 干沟 

分 类 号：P694[天文地球—地质学]