摘要
土钉支护是近二十年来在国外发展起来的一种用于土体开挖和边坡稳定的新技术。随着高等级公路建设的快速发展,高陡挖方边坡的稳定性是人们最关心的问题,在众多的边坡稳定和整治手段中,土钉支护因其具有工艺简单、造价低、工期短等优点,在路堑边坡得到广泛使用。本文介绍了在长沙某道路边坡中应用土钉的实例,针对本道路边坡复杂的场地条件,根据规范要求对采用的土钉支护进行了设计计算和稳定性分析验算,给出了土钉支护在该基坑中的设计参数,为今后的土钉支护在道路边坡的应用提供了宝贵经验。
Soil nailing support is a new technology developed in foreign countries for the excavation of soil and slope stability in the past two decades. With the rapid development of high-grade highway construction, the stability of high-and-steep excavation slopes is the most concerned part. Among the many slope stabilization and treatment methods,soil nailing has been widely used because of its simple process, low cost, and duration. This paper introduces the application of soil nails in a road slope in Changsha. According to the complex site conditions of the road slope, the design calculation and stability analysis of soil nailing are carried out based on the requirements of the standard. The design parameters of the nail supporting in the foundation pit are provided, and the reasons for the difference between the actual calculation results and the calculation results of Lizheng Software are briefly analyzed, which provides valuable experience for the future application of soil nailing in roadside slopes.
作者
林潇
徐蒙
徐力生
LIN Xiao1,2 ,XU Meng1,2, XU Li-Sheng1,2(1 .Key laboratory of metaUogenic prediction of non-ferrous metals and Geological Environment Monitor （Central South University）, Ministry of Education, Changsha 410083, China ; 2. School of Geosciences and Info - Physics, Central South University, Changsha 410083, China)
出处
《科技视界》
2018年第19期113-115,共3页
Science & Technology Vision
关键词
边坡支护
土钉支护
设计参数
Slope support
Soil nail support
Design Parameters
