低等级特长公路隧道逃生救援关键技术研究

Study on Key Technology of Escape and Rescue in Low-grade Super-long Highway Tunnel

随着人们对交通需求的提高,一些早期建成的公路隧道在使用功能上已不满足要求,如隧道内照度不满足要求,隧道内空气条件较差等等,个别特长隧道因建设年代早,消防救援设施较为匮乏,因此各地公路管养部门根据隧道的实际使用情况逐步对其进行升级改造。在诸多改造内容中,因隧道为地下工程,断面改造难度大,消防救援设施的改造更为困难,需要进行多方案的研究及比选。以连云港某低等级超长公路隧道为对象,研究了避难所、平行导洞及上部逃生通道三种方案,最终根据项目条件推荐采用避难所作为本项目的推荐方案,供类似工程参考。

With the improvement of traffic demand of the people, the using functions of some early built highway tunnels have not met the requirements, i.e. the illumination in tunnel cannot meet the requirements,the air conditions in tunnel are poor and etc. The fire and rescue facilities in several super-long tunnels are poor because of the early construction. Therefore, the highway administration departments various regions carry out the upgrading reconstruction of these facilities step by step according to the practical service conditions of tunnel. In many reconstructions, the fire and rescue facilities are difficultly reconstructed due to the tunnels are underground projects and the reconstruction sections are more difficult. It is necessary to study, compare and select many schemes. Taking a low-grade super-long highway tunnel in Lianyungang as an example, three schemes of refuge, parallel pilot tunnel and upper escape tunnel are studied. Finally, based on the conditions of the project, the refuge is recommended as the scheme for this project, which can be referred for the similar projects.