Previously, except for the projects related to the introduction of Chongqing hub into Chongqing station and Chongqing east station, the other main line projects of Chongqing Qianjiang section of Chongqing Hunan high speed railway have been officially started in March 2020, and the reconstruction projects of the remaining Chongqing station have not been tendered yet.
Trend diagram of Chongqing Qianjiang section of Chongqing Hunan high speed railway ▼..
Specifically include: ① construction of all pre station works and relevant interface works behind the station within the design scope of construction drawings for the starting and ending mileage dk21 + 200 ~ dk30 + 680 of Chongqing Qianjiang Railway (excluding the scope of agency construction of Chongqing Construction Headquarters such as station and yard earthwork, subgrade ancillary works, etc.); ② Construction of all pre station works and relevant interface works behind the station within the design scope of the construction drawing of Chongqing Wanzhou high speed railway within the scope of Chongqing East Station (excluding the scope of agency construction of Chongqing Construction Headquarters such as earthwork works and subgrade ancillary works within the scope of the station); ③ Construction of all pre station works and relevant interface works behind the station within the design scope of the construction drawing of the east ring tie line (excluding the scope of earth rock works within the station, subgrade ancillary works and other agency works of Chongqing Construction Headquarters).
Key and difficult projects: (1) Zhangjiashan tunnel, with a length of 6590m, is multi line, large-span, gently inclined mudstone and crosses many railways under construction and planning; (2) The subgrade of j2k0 + 210 ~ + 650 section of Chongqing East EMU station is a deep artificial spoil area.
The proportion of project investment is 50% of project capital and 50% of bank loans.
1517), and the owner of the project is Chongqing Railway Investment Group Co., Ltd, The construction funds come from the capital and bank loans invested by China National Railway Group Co., Ltd.
So far, the whole line of Chongqing Qianjiang section of Chongqing Hunan high speed railway is about to enter the formal construction stage, and the planned construction period is until the end of June 2025.
The main contents of the bidding announcement are as follows: I.
On September 28, the announcement on prequalification of construction lump sum contract and construction lump sum contract bidding for Lot 3 of station front works and lot 1 of track laying works of the new Chongqing Qianjiang Railway East Station and related projects (announcement on behalf of bidding) was issued.
Project overview construction scale: the line is led from Chongqing station of Chongqing hub, passes through Yuzhong District, Nan’an District, Banan District, Nanchuan District, Wulong District, Pengshui County and Qianjiang District of Chongqing, and connects with the Guizhou Zhangjiakou Changzhou Railway under construction.
Subgrade works: 3917m, single track, ballastless track bed (including ballastless track fine adjustment and fine adjustment parts).
The total construction period is planned to be 5.5 years.
Tunnel Engineering: 6590m, 1 double track; 2647m, 6 single lines.
Main technical standards: railway grade: high speed railway; Number of main lines: double track; Design driving speed: 120 km / h for Chongqing east section and 350 km / h for Chongqing East Qianjiang section; Distance between main lines: 4m from Chongqing to East Chongqing and 5m from East Chongqing to Qianjiang; Minimum curve radius: 800m from Chongqing to East Chongqing and 7000m from East Chongqing to Qianjiang (5500m in difficult sections); Maximum gradient: 20 ‰ in general sections and 30 ‰ in local sections; Effective length of arrival departure track: 650 m; Train operation control mode: automatic control; Dispatching command mode: centralized dispatching; Minimum running interval: 3 minutes.
The funds have been implemented, the construction drawing design documents are complete, and the tenderee is Chongqing Guizhou Railway Co., Ltd.
2.
(1) Cqqjpg-1, quantities: track works: 25.15km, main line; 77.92km, station line; 236 sets of turnouts; Sleeper prefabrication; Chongqing East track laying base.
Station works: Chongqing East Railway Station (part of earthwork); Chongqing East bullet train station.
Bid section division: this bidding is divided into two bid sections with bid section numbers of cqqjpg-1 and cqqjzq-3.
The bidding scope includes Chongqing east railway station track project, Chongqing Hunan high-speed railway main line, EMU station, EMU line, east ring connecting line and other projects.
3.
2.
Planned construction period: 1307 calendar days, planned commencement date: December 1, 2021, and planned completion date: June 30, 2025.
and Chongqing.
2、 Project overview and bidding scope 1.
The total length of the main line is 269.506km.
(2) Cqqjzq-3, quantity: 1.
bidding conditions the new Chongqing Qianjiang railway of the construction project has been approved by the national development and Reform Commission with the reply of the national development and Reform Commission on the feasibility study report of the new Chongqing Qianjiang Railway (fgjj [2018] No.
There are 8 stations in the whole line, including 6 new stations (Chongqing East, Banan, Nanchuan north, Shuijiang north, Wulong South and Pengshui South), and 2 stations (Chongqing station and Qianjiang station).
