石笼结构在山区公路特殊路基中的适用性研究  

Application of Gabion Structure in Special Subgrade of Mountainous Highway

作　　者：孙国富[1] 贾新娜[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《交通标准化》2011年第19期88-92,共5页Communications Standardization

基　　金：北京市自然科学基金项目(8062007);北京工业大学研究生科技基金(YKJ20072039)

摘　　要：石笼结构具有良好的柔性、渗透性和生态环保特性,应用于山区公路的特殊路段是对传统支挡防护形式的有效补充,是很有前景的一种结构。基于北京山区黄关公路的工程应用,总结了石笼挡墙、石笼护坡在山区公路工程中的适应性和待深入研究的方向。目前石笼结构的力学分析、变形分析等方面的理论研究尚且不足,尤其对石笼护坡的研究还是空白。以石笼挡墙的颗粒流力学模拟研究成果为基础,结合黄关公路中提出的石笼护坡的整体失稳、局部失稳、冲刷淘蚀脱空、生态恢复四大技术关键点,还需进一步展开对石笼护坡力学特性的研究,为石笼结构在山区公路中的推广应用奠定基础。Gabion structure has good flexibility and permeability.It has been used in special subgrade of mountainous highway based on its environmental protection characteristic.It is a effective complement to the form of traditional retaining protection and a coming structure.Based on Beijing Huang-guan road Rehabilitation project,this paper summarizes the applicability and deficiency of gabion retaining wall and gabion slope protection in special subgrade of mountainous highway.At present,the calculation of earth pressure and distortion is not sufficient,especially in gabion slope protection.Based on gabion retaining wall research results by Particle Flow Code and combined with the problem of the global instability,the local instability,the water eroding and flooding and the ecological restoration,we should develop the mechanical property of gabion slope protection in order to lay a foundation for the generalization of gabion structure.

关 键 词：道路工程 特殊路基 石笼挡墙 石笼护坡 力学特性 颗粒流 

分 类 号：U416[交通运输工程—道路与铁道工程]