新鲤鱼溪二号隧道洞口高仰坡滑坡体的防护论证

Reinforcement treatment for landslide of high slope at the portal of the second Xinliyuxi tunnel

文章在分析株六铁路增建Ⅱ线的新鲤鱼溪二号隧道进口高仰坡滑坡体的工程特征的基础上 ,论证了防洪抢险中所采用的“护拱 +拱型梁 +挡墙 +两级护墙”的防护设计方案。由于采用了该方案 ,顺利地处理了现场危险 ,确保了洞门结构的稳定 。

In this paper, based on the analysis of the properties of high-slope landslide at the portal of the second Xinliyuxi tunnel which is a tunnel in the railway from Zhuzhou to Liupanshui, a comprehensive reinforcement treatment, including support arch, arch beam, supporting wall and double-layer protecting wall, are demonstrated, which can be used in flood prevention and emergency treatment. It obviates the in-situ danger successively, ensures the stability of portal structure and the traveling safety.