On June 17, 2022, the Yunnan Provincial Public Resources Trading Network released the announcement of investors and cooperative contractors for the section from Maluwan to Yiliang Expressway from Maluwan to Yiliang County. Co., Ltd. won the bid; Section 2 was won by the consortium of China Metallurgical Tiangong Group Co., Ltd., Yunnan Shunhua Intelligent Technology Co., Ltd., and Zhaotong Xianxing Road and Bridge Engineering Co., Ltd. Zhaotong Expressway Prefabricated Construction Co., Ltd.; Section 3 was won by China Railway Seventeenth Bureau The Group Co., Ltd. won the bid, with a total project investment of about 8.838 billion yuan.

Project Overview

The route from Maluwan to Yiliang Expressway to Yiliang County is generally north-south. The route starts from the vicinity of Chahe Interchange of G85 Yinkun Expressway, and the Chahe Junction is connected to Yinkun Expressway. Zehe River goes south, and Tianxing Interchange is set up in the northwest of Tianxing Town, Daguan County to connect S304, passing through the west of Tianxing Town, the route continues to the south, and Yiliang North-North Interchange is set up in Qianjiahegou, Long'an Town, Yiliang County to connect with Chongqing-Kunming High-speed Railway Yiliang North Station, then transit to the west of Yiliang County, and then to the end of the project to set up a peanut land hub to connect to Yizhao Expressway.

technical standard

This project adopts the standard of two-way four-lane expressway, the design speed is 80Km/h, the width of the roadbed is 25.5 meters, the design vehicle load of bridges and culverts adopts highway class I, and the design flood frequency: roadbed, large and medium bridges 1/100, extra-large bridges 1/300 , the peak acceleration of ground motion is 0.15g, the seismic intensity is Ⅶ degree, and the traffic engineering and facilities along the line adopt the A-level standard. The total length of the recommended route in the preliminary design of the project is 36.708km, of which: the road section in Daguan County is 20.086km long, and the road section in Yiliang County is 16.622km long. Set up 7588.4m/15 bridges, including 3538.9m/3 extra-large bridges, 3928.5m/10 bridges, and 121m/2 middle bridges; set up a total of 25540.578m/10 tunnels, including 16390m/4 extra-long tunnels and long tunnels 8282.578m/4 blocks, 868m/2 short tunnels; set up 4 interchanges, including 2 hub interchanges and 2 general interchanges; set up 1 parking area, 1 management center, 1 maintenance area, and 2 tunnel management offices place. The content in the project overview is subject to the final approved construction drawing design. Keywords: engineering news, engineering construction information, engineering construction

Bidding Information

The 1st part of the project was won by China Railway 24th Bureau Group Co., Ltd. with a quotation of about 1.6 billion yuan; The consortium of High-speed Prefabricated Construction Co., Ltd. won the bid with an offer of 3.8 billion yuan; the 3rd bid was won by China Railway Seventeenth Bureau Group Co., Ltd. with an offer of about 1.62 billion yuan.Editor/Zhao E