土工复合材料在高等级公路路基中的应用  

Application of Geosynthetics in Subgrade of Highway

作　　者：李姗姗 LI Shan-shan(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,Shaanxi,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043

出　　处：《合成材料老化与应用》2021年第4期158-160,共3页Synthetic Materials Aging and Application

摘　　要：为了研究土工复合材料在高级公路路基中的应用技术体系,对相关技术文献进行了整合分析,发现在高等级公路路基中的土工复合材料应用方向主要有两点:一是配合土钉、锚索等结构力学构建,使用复合栅格对夯土结构进行预应力强化;二是利用复合材料的阻水、疏水、排水性能,防止夯土结构在降水环境下的水饱和风险,减少夯土路基的含水量,保障其稳定性。研究认为,使用土工复合材料对高标准公路基础结构稳定性具有不可替代的积极意义。In order to study the application technology system of geosynthetics in the high-grade highway subgrade,the relevant technical documents are analyzed and found that the application direction of the geosynthetics in the subgrade of high-grade highway is mainly two points:firstly,the prestressed strengthening of rammed earth structure is carried out by using composite grid in combination with the structural mechanics construction of soil nails and anchor cables;2nd,the water resistance,drainage and drainage performance of rammed soil structure can prevent the risk of water saturation under precipitation environment,reduce the moisture content of rammed soil subgrade and ensure its stability.Therefore,the research shows that the use of geosynthetics is of great significance to the stability of high standard highway infrastructure.

关 键 词：土工复合材料 高等级公路 含水量 预应力 技术体系 

分 类 号：TU425[建筑科学—岩土工程]