模块式加筋土挡墙墙面板与土工格栅之间的摩擦性质研究  

STUDY ON FRICTION CHARACTER BETWEEN GEOGRID AND CONCRETE BLOCK REINFORCED EARTH RETAINING WALL

作　　者：刘卫华[1] 雷胜友[2] 黄润秋[1] 冯勇[3] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家专业实验室,四川成都610059 [2]长安大学公路学院,陕西西安710064 [3]武警交通第一总队,四川成都610041

出　　处：《岩石力学与工程学报》2006年第z1期3218-3223,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金雅砻江水电开发联合研究基金重点资助项目(50539050);地质灾害防治与地质环境保护国家专业实验室基金项目(GZ2005-03)

摘　　要：根据模块式加筋土挡墙的墙面板和土工格栅之间摩擦的足尺试验结果,分析两者之间的摩擦力和摩擦因数,以及影响两者之间摩擦性质的因素。试验研究表明:摩擦力及摩擦因数与竖向压应力有良好的对数关系,筋带竖向间距的大小决定墙体的墙面板与筋带之间可以采用摩擦连接的范围。该结果具有工程应用价值。Full-scale friction experiments of concrete block reinforced earth retaining wall between the block and geogrid are modeled on the special testing machine.The size of block which the interface of block and geogrid is the surface of 500 mm is 500 mm×500 mm×220 mm.The number of experiments is 96 and the laid dry and mortal masonry are divided.The force of friction,coefficient of friction and the influence factors are analyzed.The experimental study indicates that the force of friction increases with the vertical pressure increasing and the frictional connection reduces with the vertical pressure increased,but there are not linearity relationshipst,here are well logarithm relationships between force of friction and vertical pressure,coefficient of friction and vertical pressure respectively.The calculating result of a concrete block reinforced earth retaining wall with adjusted size of concrete block shows that the interval space decides the confine in which the frictional connection between block and geogrid can be used.The test results are useful for engineering practice.

关 键 词：土力学 组合模块式墙面板 土工格栅 摩擦性质 

分 类 号：TU43[建筑科学—岩土工程]