广州国际金融城起步区地下道路系统总体设计

Overall Design of Underground Road System in Starting Area of Guangzhou International Financial City

广州国际金融城起步区内核心区域地面完全实现电动车+慢行的绿色交通,车行交通都通过地下道路系统组织。负三层地下道路系统由"两横两环"骨架组成,地下道路通过次环和连接道两种方式与地块车库衔接。运用模拟软件对隧道内的火灾场景及烟气蔓延情况进行模拟计算,论证了消防疏散体系的安全性,分区域采用了隧道纵向或横向通风排烟方式,隧道内采用泡沫-水喷雾联用自动灭火系统和智能交通系统。

The green transport of electric vehicle + slow traffic is completely realized on the ground of core area in the starting area of Guangzhou International Financial City. The vehicle traffic is all through the underground road system. The underground three-layer road system is composed of the two-cross and two-ring framework. The underground road is connected with block garage by two modes of second ring and connection way. The simulation software is used to simulate and calculate the fire field and smoke spreading in tunnel, which demonstrates the safety of fire control and evacuating system. The areal longitudinal or horizontal ventilation and smoke discharge modes are used. The bubble-water spray combined automatic extinguishing system and intelligent transportation system are used in tunnel.