摘要
结合南阳至邓州高速公路在建项目工程,对目前膨胀土路基产生的病害进行分析,找出了膨胀土路基产生各种病害的因素。通过室内试验对沿线弱、中膨胀土进行改性,并依据石灰改良膨胀土后的各种物理、力学性质的变化,确定合适的用灰量。根据室内试验得出的掺灰量并结合防水保湿防风化的原则,探讨膨胀土路基处理、边坡防护和排水设计。
This article analysed the expansive soils subgrade diseases based on the project of Nanyang-Denzhou expressway being built and found out the reasons.It is decided to mix lime into expansive soils and enhance waterproof & keeping wet in order to ensure subgrade stability and weather-proof.The dosage of perfect fit lime is found throughout experiments of changing character to expansive soils according to changes of physics and mechanics after expansive soils having been changed.Expansive soils subgrade treatment and side slope protection & drainage design are discussed by chamber experiments results and the principle of waterproof & keeping wet.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第11期5-9,共5页
Journal of Highway and Transportation Research and Development
关键词
膨胀土
改性
路基处理
边坡防护
排水设计
Expansive soils
Change character
Subgrade treatment
Sideslope protection
Drainage design
