On November 24, 2022, Beijing Construction Engineering Information Network released the announcement of the bid winning candidates for the pre station construction bidding of Chongqing Section of the new Chengdu Chongqing Middle Line Railway. The project is divided into five sections, with a planned construction period of five years and a total bid price of about 10.5 billion yuan.

Project overview

Construction site: North Chongqing to Dazu, Shapingba District, Chongqing

Construction scale: The newly-built Chengdu Chongqing Middle Line Railway leads westward from Chongqing North Railway Station, the Chongqing hub, and enters Sichuan Province through Chongqing Science City, Tongliang District, and Dazu District. The newly-built main line is 291.315km long, of which the main line in Chongqing section is 102.698km long and the design speed is 350km/h. There are 4 stations in Chongqing section, including 3 new stations and 1 reconstructed station.

Planned duration: 1826 calendar days, planned commencement date: November 30, 2022, and planned completion date: November 30, 2027.

CYCQZQ-1, the quantities are: 1. The total length of DK13+611.386 ～ DK29+415 is 15.804km, including 2.5 tunnels/111.14km, 6 bridges/2.786km, and 1.904km subgrade; The total proportion of bridges and tunnels is 87.9%. 2. Chongqing Science City Station Project, central mileage DK21+407. 3. The beam yard of Science City Station, with the supply scope of DK9+363-DK34+847, is responsible for the prefabrication and erection of 250 hole box girders, including 48 holes in the second section of the hub, 114 holes in the first section of the station, and 81 holes in the second section of the station; And be responsible for the transportation and installation of small components in this section. The beam yard is also responsible for the prefabrication, transportation and installation of the assembled bridge deck system on this section and the box girder erected. Mileage/range: DK13+611.386 ～ D DK29+415, section length 15.804km.

CYCQZQ-2, quantities: 1. DK29+415 ～ DK49+666, total length 20.251km, including 1.5 tunnels/6.852km, 13 bridges/1.037km, and 3.362km subgrade; The total proportion of bridges and tunnels is 83.4%. 2. The center mileage of Tongliang Station is DK47+757. 3. The beam yard of Tongliang Station, DK34+895-DK73+000, is responsible for the prefabrication and erection of 687 hole box girders, including 196 holes in the front two sections and 491 holes in the front three sections. The beam yard is also responsible for the prefabrication, transportation and installation of the assembled bridge deck system on this section and the box girder erected. Mileage/range: DK29+415 ～ DK49+666, section length 20.251km.

CYCQZQ-3, the quantities are: 1. DK49+666 ～ DK81+540, with a total length of 31.874km, including 5.5 tunnels/5.804km, 17 bridges/23.885km, and 2.185km subgrade; The total proportion of bridges and tunnels is 93.1%. 2. Tongliang sleeper prefabrication plant is responsible for sleeper prefabrication and loading of section DK0+000-DK102+706; And responsible for the prefabrication and loading of small components in Section 1, Section 2, Section 3 and Section 4 in front of the station. Mileage/range: DK49+666 ～ DK81+540, with a section length of 31.874km.

CYCQZQ-4, the quantities are: 1. DK81+540 ～ DK102+706, with a total length of 21.166km, including 3.5 tunnels/12.435km, 10.5 bridges/7.457km, and 1.274km subgrade; The total proportion of bridges and tunnels is 94.0%. 2. Dazu Stone Carving Station Project, with the central mileage of DK84+341. 3. The beam yard of Dazu Stone Carving Station, with the scope of supply of DK73+000-DK102+706, is responsible for the prefabrication and erection of 420 hole box girders, including 189 holes in the front three bid sections and 231 holes in the front four bid sections, and for the transportation and installation of small components in this bid section. The beam yard is also responsible for the prefabrication, transportation and installation of the assembled bridge deck system on this section and the box girder erected. Mileage/range: DK81+540 ～ DK102+706, with the bid section length of 21.166km. Keywords: engineering news, engineering construction information, engineering construction

Bid winning information

The first candidate for winning the bid for the first bid of Chongqing Section of the newly-built Chengdu Chongqing Middle Line Railway: China Railway 12th Bureau Group Co., Ltd., with a bid price of 2.79 billion yuan; The first candidate to win the bid for the first two bids of Chongqing Section Station: China Railway No.4 Engineering Group Co., Ltd., with a bid price of 2.548 billion yuan; The first candidate to win the bid for the first three bids of Chongqing Section Station: China Railway Fifth Bureau Group Co., Ltd., with a bid price of 2.433 billion yuan;

The first candidate for the first four bid winning bids of Chongqing Section Station: China Railway 14th Bureau Group Co., Ltd., with a bid price of 2.726 billion yuan. editor /Zhao E