中国地质灾害与防治学报2012，Vol.23Issue(3)：13-17,5.
四川广巴高速公路红层滑坡成因分析及防治措施
Analysis of cause and treatment measures for a landslide in red mudstone in Guangyuan-Bazhong expressway
摘要
Abstract
Red bed landslide disaster is widespread to the Northern mountainous expressway in Sichuan province. According to the field exploration on Guangyuan-Bazhong expressway, the formation mechanism of landslide is analyzed through landforms, rock character, geologic structure, hydrological geology and landslide morphology, so the type of the landslide is proved to be sliding-traction. Through the analysis and calculation of the landslide, the stable coefficient K ranges from 1.05 to 1. 15, the front part of the landslide is in river bed which suffers flood flushing, and the ramp cutting and foundation pit excavation is harm to the landslide stability, which causes the decrease of stable coefficient in to a critical state, so the landslide needs to be reinforced. Combined with the engineering practice, treating measures are putting forward which are piles setting to the front part of secondary landslide, small diameter steel pipe piles setting to the backside of first order landslide, and assisting with draining and intercepting of water.关键词
红层滑坡/高速公路/成因机制/防治措施Key words
red bed landslide/expressway/formation mechanism/control measure分类
天文与地球科学引用本文复制引用
袁晓波,向波,赵丹,何云勇..四川广巴高速公路红层滑坡成因分析及防治措施[J].中国地质灾害与防治学报,2012,23(3):13-17,5.基金项目
四川交通科技计划项目 （）
