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原文传递 Experiences and Lessons from Treatment of Collapsible Loess Foundation in Ningxia Highways--A Case Study of Ningxia Highways in the Section of Tongxin to Yanchuangzi

题名：	Experiences and Lessons from Treatment of Collapsible Loess Foundation in Ningxia Highways--A Case Study of Ningxia Highways in the Section of Tongxin to Yanchuangzi
正文语种：	中文
作者：	TAO Lianjin CHU Chenglong HOU Sen LIU Chunxiao
作者单位：	Key Laboratory of Urban Security and isaster Engineering of Ministry of Education,Beijing University of Technology, Beijing B Resident Mission in the PR , Beijing
关键词：	Collapsible Loess Subgrade Treatment Road Damage
摘要：	Many highways in Hui Autonomous Region and other northwestern PRC pass through collapsible loess regions.Road damages often become severe and maintenance high due to inappropriate road foundation treatment for budget and construction period reasons.In view of this, experiment sections were set on highways from Tongxin to Yanchuangzi, on which different processing methods are tested for different classes of collapsible loess.Methods including impact rolling method, compaction method for replaced filling, dynamic compaction method and compaction pile method were used in different experiment section.The asphalt pavement was also divided three layers and constructed with three phases in intervals for better mitigating road damages.In general the overall measures take effects in terms of quality and cost.The experiences and lessons from the highway in an attempt to do more with less may be beneficial and instructive to future similar highway projects in northwestern area in China.
会议日期：	20150422
会议举办地点：	上海
会议名称：	第七届中国公路科技创新高层论坛
出版日期：	2015-04-22
母体文献：	第七届中国公路科技创新高层论坛论文集