研究土工格栅性能与水稳层厚度对面层开裂的影响  

Study on the Effect of Geogrid Performance and Thickness of Water Stable Layer on Surface Layer Cracking

作　　者：高超 Chao Gao(Beijing Urban Construction Design&Development Group Co.,Limited,Beijing,100044,China)

机构地区：[1]北京城建设计发展集团股份有限公司,中国·北京100044

出　　处：《工程技术研究（百科）》2020年第1期143-146,共4页Engineering technology research

摘　　要：基于滇中新区空港大道中段工程主路路面结构设计,采用ABAQUS软件分析土工格栅的种类及水泥稳定碎石层厚度对面层开裂的影响。格栅模量越大面层层底越呈现明显的受压状态,水泥稳定碎石层厚度越大面层层底越呈现明显的受压状态,当厚度达到一定值时继续增加基层厚度对改善面层层底受压的效果不明显。综合软件数据分析、经济效益确定水泥稳定碎石基层厚度为38cm,格栅采用玻纤格栅时,路面面层层底受压且面层不易在荷载作用下发生开裂破坏。Based on the pavement structure design of the main road in the middle section of airport avenue,central yunnan new area,ABAQUS software was used to analyze the influence of the type of geogrid and the thickness of cement stabilized gravel on the surface cracking.The larger the grille modulus,the more obvious the compression state appears at the bottom layer,and the thicker the cement stabilized gravel layer is,the more obvious the compression state appears at the bottom layer.When the thickness reaches a certain value,increasing the base layer thickness has no obvious effect on improving the compression state at the bottom layer.Based on the analysis of software data and economic benefits,it was determined that the thickness of cement stabilized Macbeth base was 38cm.When glass fiber grille was used for grille,the pavement layer was under pressure and the surface layer was not easy to crack under the action of load.

关 键 词：土工格栅 水泥稳定碎石 面层裂缝 

分 类 号：U41[交通运输工程—道路与铁道工程]