论文部分内容阅读
本文以张承高速公路崇礼至张承界段科技项目为基础,通过对冻土路基技术研究,通过室内大试件试验、室内试槽及现场试验,研究季节性冻土地区路基冻害的水、热、力相互作用的关系,进一步研究季节性冻土地区路基的冻胀与融沉机理;通过对季节性冻土地区路基容许冻深确定方法、路基合理设计高度、路基设计方法及路基路面冻害防治技术的研究,形成一整套适用于季节性冻土地区路基设计方法。该项目研究成果将为今后规范的制定提供依据。
Based on the science and technology projects of Chongli-Zhangchengjie section in Zhang-Cheng Expressway, this paper studies the technology of permafrost embankment through indoor large-scale test, indoor test-bed and field test to study the water damage of roadbed in seasonal frozen soil area , Heat and force interaction, further study on the frost heave and thaw settlement mechanism of subgrade in seasonal frozen soil region. Through the method of determining subgrade allowable freezing depth in seasonal frozen soil region, the reasonable design height of subgrade, design method of subgrade and subgrade pavement Frost damage prevention and control technology to form a set of subgrade design methods suitable for seasonal frozen soil area. The research results of this project will provide the basis for the future specification.