粗粒径混合填料的力学特性研究及其在高陡填方边坡中的应用  

Study on Mechanical Properties of Mixed Filler for High and Steep Fill Slope

作　　者：李晓宁 陈位洪[1] 申琦瑜 Li Xiaoning;Chen Weihong;Shen Qiyu(Guangdong Architectural Design and Research Institute,Guangzhou 510010,China)

机构地区：[1]广东省建筑设计研究院,广州510010

出　　处：《特种结构》2020年第3期29-34,共6页Special Structures

摘　　要：以广州东部固体资源再生中心(萝岗福山循环经济产业园)的高陡填方边坡为研究背景,通过采用室内直剪试验、现场压板试验对最大粒径为20cm的石土混合填料进行研究,发现石土比为7:3的级配碎石土混合填料,其力学参数满足坡度为1:1.5的高陡填方边坡的设计需求。施工完成两年后,经现场监测,填方边坡已稳定,设计参数取值可行,希望为同类型工程设计提供参考。Based on the high and steep fill slope of Guangzhou Eastern Solid Resource Regeneration Center,the mechanical parameters of the filler with the maximum particle size of 20 cm were studied by the direct shear test in the laboratory and the on-site plate loading test.The test results showed that the mechanical parameters of the stone-to-soil mixed filler with the ratio of 7:3 could meet the design requirements of the high ard steep fill slope with slope of 1:1.5.After two-year’s monitoring,the filling slope has been stable and the values of the design parameters are feasible,which is expected to be helpful to the other similar construction.

关 键 词：高陡填方边坡 直剪试验 压板试验 

分 类 号：U414[交通运输工程—道路与铁道工程]