埋入式抗滑桩锚拉植筋带加固边坡的模型试验研究  

Model Test on Slope Reinforcement by Embedded Anti-slide Piles Combined with Vertical Geotextile Belts

作　　者：黄良誉 龚震 周成[1] 陈群[1] 何廷全 HUANG Liangyu;GONG Zhen;ZHOU Cheng;CHEN Qun;HE Tingquan(College of Water Resource&Hydropower,Sichuan University,Chengdu,Sichuan 610065,China;Guangxi New Development Transportation Group Co.,Ltd.,Nanning,Guangxi 530029,China)

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]广西新发展交通集团有限公司,广西南宁530029

出　　处：《水利与建筑工程学报》2022年第3期28-34,共7页Journal of Water Resources and Architectural Engineering

基　　金：2020年度第三批广西交通运输行业重点科技项目(XFZ-KY-LYH-20200112);四川省国际科技创新合作/港澳台科技创新合作项目(2019YFH0076);国家自然科学基金资助项目(51579167,41977239)。

摘　　要：为了解决埋入式抗滑桩支护边坡可能出现的滑坡“越顶破坏”问题,提出一种埋入式抗滑桩锚拉竖向植筋带加固边坡的技术,开展了仅有透水挡墙、埋入式抗滑桩协同透水挡墙、埋入式抗滑桩协同植筋带联合透水挡墙加固的边坡模型降雨滑坡试验来探究该技术的可行性。通过对比分析三组边坡模型试验的坡面侵蚀破坏特征、坡体土水特征、坡面线演化特征等,得到以下结论:埋入式抗滑桩协同植筋带联合透水挡墙加固边坡的效果最佳,其加固位置的坡面沉陷是埋入式抗滑桩协同透水挡墙加固边坡的30%左右,仅有透水挡墙加固边坡的15%左右。In order to solve the problem of"overtopping failure"of landslide which may occur in the slope reinforced by embedded anti-slide piles,a slope reinforcement technique is presented by embedded anti-slide piles combined with vertical geotextile belts.The feasibility of this technique is explored by carrying out rainfall induced landslide tests of slope models reinforced by permeable retaining wall,embedded anti-slide piles combined with permeable retaining wall,embedded anti-slide piles combined with vertical geotextile belts and permeable retaining wall.By comparing and analyzing the surface erosion failure characteristics,soil-water characteristics and slope surface evolution characteristics of the three groups of slope model tests,the following conclusions are obtained:the reinforcement effect of embedded anti-slide piles combined with vertical geotextile belts and permeable retaining wall is the best,the collapse height of the slope surface at the position of piles is about 30%of that reinforced by embedded anti-slide piles combined with permeable retaining wall,and about 15%of that only reinforced by permeable retaining wall.

关 键 词：埋入式抗滑桩 植筋带 侵蚀破坏 土水特征 

分 类 号：TU473[建筑科学—结构工程]