无粘性土中抗滑桩桩间土拱形成机理分析  

The Analysis of the Mechanism of Soil Arch between Anti-slide Piles in Cohesionless Soil

作　　者：郑学鑫[1] 

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《防灾科技学院学报》2014年第1期86-90,共5页Journal of Institute of Disaster Prevention

摘　　要：抗滑桩是防治滑坡灾害非常有效的工程措施,但工程实践中往往由于其设置的不合理使其并没有发挥应有的工程效益。本文从理论和数值两方面对无粘性土中抗滑桩桩间土拱形成机理进行分析,得出只要抗滑桩设置合理,在桩间就会形成土拱效应。在工程实践中,无粘性土中抗滑桩桩间土拱是以小主应力拱的形态存在的,要想形成稳定的土拱,桩前土体需要提供足够大的抗滑力。Setting up anti-slide piles is a very effective engineering measure to prevent landslide disaster. However, in actual projects, anti-slide piles can＇ t play the role because of being set up unreasonably. Based on theory analysis and numerical analysis, the mechanism of soil arch between anti-slide piles is analyzed in this study, in order to establish a theoretical foundation for using anti-slide piles better.

关 键 词：无粘性土 抗滑桩 土拱 抗滑力 数值模拟 

分 类 号：P642.22[天文地球—工程地质学]