Saudi Arabia’s King Salman International Airport Development Company (KSIADC) has tendered the Zone C1+C2 roads, bridges and utility networks package for King Salman International airport (KSIA) in Riyadh.

沙特阿拉伯萨勒曼国王国际机场开发公司（King Salman International Airport Development Company，KSIADC）已就利雅得萨勒曼国王国际机场（King Salman International Airport，KSIA）C1+C2区道路、桥梁及公用设施管网工程标段发布招标公告。

The tender was issued on 26 October, and bids are due by 6 December.

该项目于10月26日发布招标文件，投标截止日期为12月6日。

The request for proposals covers the procurement, construction, testing and commissioning of civil infrastructure supporting Terminal 6, alongside the existing Terminals 1-5.

本次招标建议书征询文件（RFP）涵盖为机场6号航站楼（Terminal 6）及现有1至5号航站楼提供配套服务的土建基础设施工程，包括采购、施工、测试及调试等工作。

The scope includes upgrades to Airport Road 539, which runs west of Terminals 1-5, and to part of Mohamed Bin Faraj Road 5333, west of Junction 6.

项目主要建设内容包括对现有机场道路539号公路（Airport Road 539）进行升级改造，该道路位于1至5号航站楼西侧；同时，对6号交叉口（Junction 6）以西的穆罕默德·本·法拉杰路5333号公路（Mohamed Bin Faraj Road 5333）部分路段进行升级改造。

It also includes new roads, ramps, service roads, and signalised at-grade junctions. An additional access road will connect the Terminal 6 site offices to Road 5333.

此外，项目还将新建道路、匝道、服务道路及配备交通信号灯的平面交叉口，并增设一条连接6号航站楼现场办公区与5333号公路的出入道路。

Structures will include the Junction 6 and Terminal 6 bridges, retaining walls and reinforced-soil structures.

桥梁及结构工程方面，项目包括建设6号交叉口桥梁、6号航站楼桥梁、挡土墙及加筋土结构。

The contractor will also construct the central ground services equipment (GSE) bridge. Before construction begins, the contractor must validate the design, complete any outstanding elements – including mechanically stabilised earth walls, approach slabs, drainage and lighting – and secure the required authority approvals.

承包商还将负责建设中央地面服务设备桥（Central Ground Services Equipment Bridge，GSE Bridge）。在正式施工前，承包商须对现有设计进行复核确认，完成尚未完善的设计内容，包括机械加筋土挡墙、桥头搭板、排水及照明设施等，并取得相关主管部门的必要审批。

Dry utilities will comprise high- and extra-high-voltage containment, a 13.8kV medium-voltage network with package substations, low-voltage distribution and street lighting, and security-surveillance systems.

电力及通信等干式公用设施（Dry Utilities）方面，工程范围包括高压及超高压电缆敷设配套设施、13.8千伏中压配电网络及箱式变电站、低压配电系统、道路照明系统以及安防监控系统。

Wet utilities will include potable water, fire water, irrigation water, treated sewage effluent, district cooling and wastewater networks. Wastewater pipes will range from 200mm u-PVC gravity lines to 1,700mm glass-reinforced plastic mains.

给排水等湿式公用设施（Wet Utilities）方面，工程包括饮用水、消防供水、灌溉用水、再生污水回用水、区域集中供冷及污水管网等系统。其中，污水管道规格涵盖直径200毫米的硬聚氯乙烯（u-PVC）重力流管道至直径1,700毫米的玻璃纤维增强塑料（GRP）主管道。

The stormwater network will include channels, culverts, ponds and pipes ranging from 400mm to 1,400mm in diameter. Crossings will be constructed using open-cut excavation, horizontal directional drilling or microtunneling.

雨水排放系统包括排水明渠、涵洞、调蓄池及直径400毫米至1,400毫米的雨水管道。管线穿越工程将采用明挖施工、水平定向钻进（HDD）或微型隧道施工（Microtunneling）等方式实施。

Utilities serving the operational terminals will be diverted on a design-and-build basis. Enabling works will include earthworks and the relocation of the security fence and trees. The contractor will also demolish a temporary car park, existing bridges and a sewage pumping station.

对于现有运营航站楼配套的公用设施管线，承包商须采用设计—施工（Design and Build）模式实施迁改。前期准备工程包括土方施工、机场安保围栏及树木迁移。此外，承包商还须拆除临时停车场、现有桥梁以及一座污水提升泵站。

Optional works comprise two design-and-build elements that will proceed only at the client’s instruction.

可选工程（Optional Works）包括两项采用设计—施工模式实施的工程，是否启动将由业主根据实际需要另行指示。

The first is the south GSE bridge. The second is an approximately 1,400-metre, multi-lane access road to the Terminal 6 Transportation Hub, including bridges, underpasses, ramps and tunnels, as well as provisions for future Wadi Loop utilities and structures.

第一项为南侧地面服务设备桥（South GSE Bridge）工程。第二项为一条全长约1,400米的多车道道路，连接6号航站楼综合交通枢纽（Terminal 6 Transportation Hub）。该工程包括桥梁、下穿通道、匝道及隧道，并为未来Wadi Loop相关公用设施管线及结构工程预留建设条件。