高速公路红砂岩的路用性能及施工工艺研究
摘要:已有高速公路路堤工程实践表明,红砂岩在大气环境或干湿循环作用下,岩块易崩解碎裂、颗粒软化、强度降低,是一种不良的路基填料。但红砂岩在我国分布较广泛,尤其在山区公路建设中大量存在。为此,结合大量的试验研究,对红砂岩的物理力学性质和路用性能进行了探讨,提出了以"预崩解→耙压→碾压"为核心的红砂岩路基填筑施工工艺和处理技术。
Abstract:The practice on embankment of existing expressway shows that red sandy rock is not a good filling material of subgrade with relatively low natural strength. It is easy to crash and disintegrate, which leads to strength reduction, when it is exposed to atmospheric environment or under drying and watering cycle action. However, red sandy rock exists and distributes widely in our country, especially in areas where mountainous highways locate.Through a lot of experiments,the physical and mechanical properties and the performance of red sandy rock are discussed. Also, some disposal procedure and construction technique which should be adopted when red sandy rock is used as subgrade filling material are putted forward, the core of which is "pre-crack and decompose-rake and compress-grind and compress".
中文标题：
高速公路红砂岩的路用性能及施工工艺研究
Study on Performance and Construction Technique of Red Sandy Rock in Expressway
作者：
邓觐宇
DENG Jin-yu
作者简介:邓觐宇,1945年生,女,汉族,江西南昌人,毕业于江西赣南师范学院,高级工程师,从事公路工程施工与管理。E-mail:djiyu@21cn.com
通讯地址：
湖南省高速公路建设开发总公司, 长沙 410001
中图分类号:U416
出版物：岩土工程技术
收稿日期:2003-07-17
网络出版日期:2021-07-21
关键词:高速公路,红砂岩,路基填料,路用性能,施工工艺
Key words:expressway,red sandy rock,subgrade filling material,performance,construction technique
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