高速公路红粘土路基填筑施工与改良方法研究  

Red-clay Road Bed of Expressway Filling Construction and Improvement Method Research

作　　者：易剑波 

机构地区：[1]湖南省桂武高速公路建设开发有限公司,湖南郴州424400

出　　处：《公路工程》2012年第5期141-143,共3页Highway Engineering

摘　　要：依据红粘土液限高,随含水量的增加压实强度显著降低的特性,在路基94区以下通过严格控制路基填筑土层厚度和最佳含水量及选择合理碾压机具,优化碾压遍数直接进行路基填筑,在96区通过对红粘土掺入合理级配的碎石进行改良,及对红粘土路基的包边处理控制水对路基的侵润,抑制红粘土路基遇水变形大、土体强度大幅降低等病害,能保证红粘土路基的填筑质量。On the basis of red clay with high liquid limit, with the increase of water content and compaction strength decreased characteristics,in the following 94 areas through strict control of subgrade filling of subgrade soil thickness and the optimum water content and choose the reasonable rolling equip- ment, optimizing the rolling times direct construction of subgrade; in the 96 areas through the red clay mixed with reasonable gradation gravel was improved, and the red clay subgrade edge processing control water on subgrade in invasion, inhibition of red clay subgrade deformation of soil strength with water, greatly reduce the disease. It is that to ensure the red clay subgrade filling quality.

关 键 词：路基 红粘土 碎石改良 包边处理 

分 类 号：U416.1[交通运输工程—道路与铁道工程]