利雅得地铁是沙特阿拉伯利雅得正在建设的大型城市交通系统项目。该项目将沿 6 条公交线路建设 85 个车站，铁路总长度达 176 公里。预计该系统在 2018 年启用时每天将服务至少 100 万名乘客。
For this large infrastructure project, Dextra Middle East has been involved on various stations and packages.
挖掘工程
Before proceeding with general construction works, during early excavation phase, it is required to anchor retaining walls back into the stable ground in order to prevent any wall displacement. This will allow to keep excavating in a safe environment.
For that purpose, Dextra supplied steel ground anchors installed through retaining wall. Each system is based on a high-tensile fully threaded bar, coming with nut and plate, and grouted to provide bonding with the soil.
筏式和垂直连接
Bartec 钢筋连接器 were supplied for the works in the stations. Couplers were used for slabs, column and wall connections. A typicall application on this project is to cast rebar couplers in the concrete with reinforcement, and then proceed with second phase bar connection at a later stage.
Unitec bolted couplers can have also been use on various parts of the project. Typically 联合技术公司 is used when overlap is planned but lapping length appear to be too short to perform a safe splice. In that case Unitec provides a convenient and full performance connection.