摘要
干线公路路面补强和改善是我国公路网改造提高中面临的关键技术问题.本文评价分析了试点地区路网强度水平,提出路网强度分级标准;应用经验方法计算了路网中各条干线公路多种补强方案的补强层厚度;提出了计算旧路顶面当量回弹模量的经验公式,为应用弹性层状理论方法计算旧路补强层厚度探索了新的途径.
Strengthening and condition improvement of the trunk roads is a key technical problem to be solved urgently in China.In this paper,the strength level of road net in an experimental region is proposed; the thicknesses are determined by emperical method for strengthening layers of various options designed for trunk roads in , the. road net. an empirical formula for calculating the equivalent resilient modulus of the top course is put forward for probing into a new way to calculate the strengthening layer's thickness with an elastic layered theory.
出处
《公路交通科技》
CAS
CSCD
北大核心
1989年第1期8-16,共9页
Journal of Highway and Transportation Research and Development
