中南大学学报（自然科学版）2017，Vol.48Issue(7)：1849-1857,9.DOI:10.11817/j.issn.1672-7207.2017.07.023
山区公路微型桩-加筋土挡墙系统技术开发
Development of road micropile-MSE wall system in mountainous areas
摘要
Abstract
In order to deal with the difficulties in the design,construction of roadway retaining walls on steep terrain as well as its failure problems,the scheme of micropile-MSE wall system,which is suitable for the road construction in mountainous areas in western China,was put forward so as to solve the problems mentioned above.In the road micropile-MSE wall system,a pair of vertical and inclined micropiles goes through the MSE region and penetrates into the foundation,and then pile cap and grade beam are placed on the pile top to form the longitudinal framing mode.After that,the road barrier is connected to the grade beam and micropiles by connecting linkages.The structural style,technical features,construction method as well as quantity control were introduced,and contrastive numerical simulations on the deformation property of MSE Wall with different reinforcements were conducted to validate the superofity of the proposed micropile-MSE wall preliminarily.The results show that this system has the merits such as convenient construction,moderate excavation and filling as well as grading.The retaining wall's local stability,global stability and impact resistance of barrier can be improved simultaneously after adding suitable reinforcing component.关键词
加筋土挡墙/微型桩/边坡/外部稳定性Key words
MSE wall/micropile/slope/global stability分类
建筑与水利引用本文复制引用
张智超,刘汉龙,陈育民..山区公路微型桩-加筋土挡墙系统技术开发[J].中南大学学报（自然科学版）,2017,48(7):1849-1857,9.基金项目
国家自然科学基金资助项目(51609040) （51609040）
福建省自然科学基金资助项目(2016J05112) （2016J05112）
福建省科技创新平台建设项目(2014Y2007) Project(51609040) supported by the National Natural Science Foundation of China （2014Y2007）
Project(2016J05112) supported by the Natural Science Foundation of Fujian Province （2016J05112）
Project(2014Y2007) supported by the Science and Technology Innovation Platform of Fujian Province) （2014Y2007）
