与综合管廊结合的路下隧道式立体车库及其建造方法构想

在道路下方建设隧道形式的立体车库,并将隧道式立体车库与综合管廊结合,既能解决城市停车难问题,也能够更充分利用地下空间。提出将综合管廊与地下立体车库结合,并综合分析路下隧道式立体车库的建筑方案、结构组成、建造方法、运行流程及未来的发展,得到以下结论:利用地下空间增建路下隧道式立体车库,路面上仅保留地上出入口,占用一小块地面空间建设地下立体车库,可以进一步解决目前存在的停车难问题;采用顶管、盾构等机械自动化建设方案,对已有道路结构及周边环境影响较小,对道路通行能力影响较小,且始发井/接收井可用作立体车库的升降通道,进一步提高地下空间利用率。在国家兴建地下综合管廊的同时修建地下车库,将二者合二为一,既能够解决社会问题,也能够节省工期和成本,对城市建设具有重大意义。

Study on influence of ground settlement in bored metro tunnel

At present the bored construction method is one of the main construction methods of metro and tunnel construction in China. The empirical estimated formulas of tunnel ground surface settlement using the bored construction method were obtained, combining the mechanical stimulant calculated result of tunnel model of different embedded depth, different cross section and different construction method and the actual measurement data of Beijing metro construction. According to the regressed analysis of calculated data, the calculated equations of ground surface settlement value and settlement range of tunnel section under the condition of different embedded depth, different cross section and different construction method were gained. Among them there are some empirical formulas can apply to the construction design of metro tunnel directly.