摘要
新老路基的不均匀沉降和路面反射裂缝是道路拓建中的核心问题。结合上海某高速公路的拓宽工程,揭示了拓宽路基荷载作用下地基中附加应力的分布特点,分析了拓宽路基的沉降特性,研究了拓宽宽度对新老路基不均匀沉降的影响,进而提出更全面、可靠的工后沉降控制标准。
The differential settlements between the new and original subgrades and the surface reflective cracks are the essential problems in road widening constructions.In this paper based on a highway widening project in Shanghai,the characteristics of the additional stress distribution in settlement under the load of the widening subgrades were presented,the settlement characteristics of the widening subgrades were analyzed,the effects of the widening width on the differential settlements between the new and original subgrade were studied.In the end a more comprehensive and reliable control standards of post-construction settlements were proposed.
出处
《上海公路》
2016年第3期17-19,54,共4页
Shanghai Highways
关键词
拓宽路基
附加应力
不均匀沉降
控制标准
Widening Subgrade
Additional Stress
Differential Settlement
Control Standards
