既有隧道上方修建轻轨车站的设计与施工对策

Design and construction measures for a light-rail station to be built above an existing tunnel

某轻轨车站拟修建于正在营运中的既有隧道上方 ,该隧道为双洞双向四车道的城市道路隧道 ,修建轻轨车站时需掘除隧道上方的部分岩层。文中通过力学计算分析 ,确定了方案的可行性 ,并对轻轨车站实施过程中有关既有隧道的保护以及轻轨车站的设计和施工提出了切实可行的措施。

A light-rail station is planned to be built above an existing tunnel, which is a twin-tube, two-direction and four traffic lane road one. Part of the rocks above the tunnel will be removed before constructing the light-rail station. According to the mechanical calculation and analysis, the feasibility of this project is confirmed. In addition, some feasible measures are put forward to protect the existing tunnel and to design and build the light-rail station.