On December 28, 2020, in order to improve the structure of Yunnan's traffic road network, form a networked traffic system, and improve high-speed service levels, Wenshan Prefecture Transportation Bureau issued an announcement that the National Expressway Network G5615 Tianbao-Houqiao Expressway Tianbao-Wenshan Section ( Gastrodia section) initiated bidding, with a total investment of approximately 9.06 billion yuan.

National Expressway Network G5615 Tianbao-Houqiao Expressway Tianbao-Wenshan Section (Tianma Section) is "National Expressway Network G5615 Tianbao-Houqiao Expressway Tianbao-Wenshan Section" (including Tianbao-Malipo Section, Malipo-to Wenshan section).

The route starts at Tianbao Port, the starting point is pile number A2K0+700.317, and the overall route is from south to north. The route runs along the Wentian Class 2 Highway through the Tianbao Power Station. A Tianbao tunnel (4080m) is set near Maomaotiao to pass through Luojiayan and the Dabi River is super large. The bridge spans the Nanwen River (rigid frame bridge), with a tunnel passing through Abang Mountain, Jinzhuping to Manna, passing through the bamboo tiled house, setting up the Malutang in Xinzhai, and then setting up the Malutang Extra Large Bridge (480m main span cable-stayed bridge at Yanjiao) ) Cross the Malutang Reservoir to Xiaozhai, and then along the Chouyang River Extension Line, along the countercurrent ascending slope extension line of the river valley to the southern part of Malipo County. At Nanduo, the Malipo South Interchange connects the Tiantian secondary road and passes through Malipo. County Minority Middle School, Houshan and Dabang, stop at Malipo Interchange K54+748.133, with a total length of 52.5661km.

Tianbao Port, Mao Maotiao, Malutang Reservoir, and Ma Li County are the main control points. The main line adopts two-way four-lane expressway standard construction, with a design speed of 80km/h and a roadbed width of 25.5m. The automobile load class adopts the highway—Class I. The technical indicators of the main line and connecting lines are detailed in the "Main Technical Indicators Table".

The scope of this tender is the general contract for the design and construction of the Tianbao-Wenshan section (Tianma section) of the national expressway network G5615 Tianbao-Houqiao expressway, including temporary works, subgrade works, pavement works, bridge and culvert works across the entire line (including Berlin Interchange) , Tunnel engineering, route crossing, traffic safety facilities and embedded pipeline engineering, greening engineering, electrical and mechanical engineering, soil and water conservation and environmental protection engineering, building facilities along the line (including civil engineering, water and electricity, installation, interior and exterior decoration, fire protection, outdoor engineering, etc.) Construction drawing stage survey and design (including construction drawing budget, bridge and tunnel safety risk assessment, environmental protection chapter, soil and water conservation chapter and subsequent design services of this project), construction general contracting and defect responsibility repair work.

Anyone who is interested in participating in the bidding, please log in to the Yunnan Engineering Construction Transaction System (URL: https://www.ynggzy.com) before the deadline for obtaining the tender documents at 17:00 on January 4, 2021 (Beijing time, the same below). com/jsgc-tb), obtain the electronic bidding documents (electronic bidding document format is *.BZBJ) and other bidding materials on the Internet with the enterprise digital certificate (CA). For details of the digital certificate (CA), please refer to its handling process. Due to the epidemic period, this project requires bidders to obtain online after the completion of the operation, from 9:00 on December 28, 2020 to 17:00 on January 4, 2021 (Beijing time, the same below), by email Send the scanned copies of the documents and remittance vouchers required in the "Annex 1" of this Tender Announcement to 1624095413@qq.com to obtain paper tender documents and technical data. Editor/Peng Xue