小客车专用城市地下道路的设计净高研究

Study on Design Clearance of Urban Underground Road Reserved for Cars

为适合小客车专用城市地下道路的特点,合理确定其设计净高,通过广泛调研统计分析国内小客车的尺寸数据,结合国内外工程案例,确定了小客车专用的城市地下道路设计净高标准,并就顶部对行车视距的影响进行了验证。研究结果表明,3.2 m可以作为小客车专用地下道路的最小设计净高,能够满足小客车及正常应急救援车辆的通行。该设计指标的研究应用,对今后减小地下道路建设规模,节约工程建设成本具有重要意义。

In order to suit the characteristics of urban underground road reserved for cars, its design clearance is reasonably determined. According to the wide investigation and study, the article analyzes the size data of cars in China. Based on the engineering cases at home and abroad, the article determines the design clearance standard of urban underground road reserved for cars, and validates the influence of top on driving sight distance. The study result shows that 3.2 m can be the minimum design clearance of underground road reserved for cars, which can satisfy the traffic of cars and the normal emergency rescue vehicles. The study and application of this design index are significant for decreasing the construction scale of underground road and economizing the engineering construction cost.