膨胀土(岩)路堑施工中应重视的几个问题  

On some problems in expansive soil cutting construction

作　　者：伍尚前 

机构地区：[1]南广铁路有限责任公司,广西南宁530022

出　　处：《山西建筑》2016年第20期144-145,共2页Shanxi Architecture

摘　　要：针对膨胀土吸水性显著、膨胀软化、失水急剧收缩开裂及往复湿胀干缩的特性,从土石方开挖、基床换填、坡面植被快速恢复三方面,探讨了膨胀土路堑施工应重视的事项,从而避免膨胀土路堑病害的发生。According to the features of the expansive soil including the evident water absorption,expansion and softening,cracks by sudden shrink of losing water,and repeated moisture expansion and drying shrinkage,the paper explores the precautions in the cutting construction from the earth rock excavation,bed replacement and filling,speedy resuming of slope plants,so as to avoid the cutting diseases of the expansion soil.

关 键 词：膨胀土 路堑 基床换填 植被 

分 类 号：U416.13[交通运输工程—道路与铁道工程]