摘要
不良地质地段的隧道开挖具有很大的难度,如处理不当很容易出现坍塌现象。小导管注浆法便是隧道工程在不良地质条件中一种辅助开挖方法,它能够改善土体的物理性能,提高开挖面地层的自稳能力,达到限制地层松弛变形的目的。介绍了小导管注浆法作用原理,及小导管、注浆参数的确定方法,并结合具体的工程实例,阐述了其在隧道工程中的应用。实践表明其是一种非常有效的方法。
The excavation in the tunnel section with the worse geological conditions is very difficult. If it isnt handled well, the collapse accidents will occur. Small conduit injection process is an auxiliary excavation method in the tunnel section with the worse geological conditions. It can improve physical properties of the soil and the stability of the excavation face, and receive the restrictions on soil deformation relaxation. This paper introduces the mechanism of Small conduit injection process and the method of deciding the parameters of small conduit and injection process. Combining the engineering example, this paper introduces its effect in tunneling. Practice shows that it is a very useful method.
出处
《技术与创新管理》
CSSCI
2009年第3期399-401,共3页
Technology and Innovation Management
关键词
隧道施工
注浆法
小导管
tunneling
injection process
small conduit
