It is understood that the Zengjiayan Jialing River Bridge has a novel structure, the main bridge spans 540 meters, and it adopts a three-span continuous steel truss bridge structure with rigid stiffeners and suspended cables. The span arrangement is (135m+270m+135m), ranking first among similar bridges in China. There are 44 steel truss beams of the main bridge, with about 24,000 tons of steel and 630,000 sets of high bolts.
At the same time, the superstructure of the main bridge is in the form of a double-deck steel truss beam, the upper layer is a two-way six-lane and sidewalks on both sides, and the lower layer is a two-lane urban rail transit 10 line. It is the first highway-railway dual-purpose bridge in China to build a rail transfer station on the bridge.
The rail transit 10 line under construction connects Nan 'an District, Banan District, Jiangbei District and Yubei District, and crosses the Yangtze River and Jialing River at the same time. It is a rail line running through the central axis of the main city. The 10 line crosses Jialing River at Zengjiayan, which will improve the rail transit network in the main city and ease the road traffic pressure.
Zengjiayan Jialing River Bridge crosses Zengjiayan Station and pedestrian platform of Rail Transit Line 2. Zengjiayan Station of Rail Transit 10 Line is located at the lower level of the bridge, above the Guest Road, and set in the north-south direction. The L-shaped passage will be used to transfer between two stations, forming a new urban landscape. There are stations under and above the bridge, which is expected to become another scenic spot for network celebrities to punch in.
At present, the overall construction of Zengjiayan Jialing River Bridge has been completed over 85%. At present, large-scale equipment such as bridge deck cranes and construction platforms are being dismantled, dismantled and left the site, and the steel truss girder primer has been brushed. Next, the auxiliary construction of the bridge will be carried out, and it is expected that the construction of the deck pavement will begin tomorrow.
After the completion of Zengjiayan Jialing River Bridge, the urban road network system will be improved, the traffic congestion in the north-central part of the main city will be alleviated, and the contact between important groups in the main city will be strengthened. The bridge and the north-south approach road are within the existing two north-south passages (passage 1: newly built north-south road-Jialing River/Yu 'ao Bridge-Bayi/Xiangyang Tunnel; Passage 2: Wu Tong Road-huanghuayuan bridge-Shihuang Tunnel) forms the third largest passage (namely Jinkai Avenue-Sheng Xing Avenue-North Bank Connecting Tunnel-Zengjiayan Jialing River Bridge-Yuzhong District Connecting Tunnel-Changbin Road/Caiyuanba Bridge).
In this way, the traffic flow of the existing two passages can be diverted, and the traffic pressure of Hongqi Hegou, Jianxin North-South Road, Guanyinqiao Business Circle, Shangqingsi-Lianglukou, Huanghuayuan and Caiyuanba can be alleviated to some extent.
Project: Southwest Half Ring Road of Rail Transit (Strait Road-Chongqing West Railway Station-Chongqing Library)
Progress: 98% of the civil image progress, 93% of the equipment installation and decoration, and 85% of the system equipment.
Goal: 9.5km (Strait Road to Erlang Section) is planned to be opened to traffic in 20 19, and the whole line is planned to be completed and opened to traffic in June 2020.
Project: the section from Jiantapo to Bishan of the track extension line.
Progress: civil construction progress is 90%, equipment installation and decoration is 13%, main track laying is 80%, noise barrier is 1 1%, and system equipment is 25%.
Target: 65438+completed and put into use in February.
Project: South Section of Phase I Project of Rail Transit Line 5
Progress: 94.6% of the south section was completed in civil engineering, 75% in equipment installation and decoration, and 62% in system equipment.
Goal: The civil engineering will be basically completed in 20 19, and the installation decoration and system equipment will be completed by 80%.
Project: Phase I Project of Rail Transit Line 9
Progress: 63% of the civil works have been completed, and the equipment installation of bidding system is under way.
Goal: 95% of civil construction and 30% of track laying will be completed in 20 19.
Project: Phase II Project of Rail Transit Line 6 Branch Line
Progress: 82% of the civil works have been completed, and the general contract for post-station construction has been opened and is being announced.
Goal: The civil works will be basically completed in 20 19, and the installation, decoration and system equipment installation projects will be put into construction.
Project: Rail Transit 10 Line Phase II (Lanhua Road-Jianxin East Road)
Progress: 30% of civil engineering is completed. The tender documents for general contracting are being countersigned.
Goal: 30% of civil works will be completed in 20 19.
Project: Chongqing suburban railway (rail transit extension line) jumps to Jiangjin Line.
Progress: construction on site, underground tunnel excavation completed 100%, open-cut tunnel project completed 95%, pile foundation completed 63%, pile cap completed 6 1%, pier column completed 63%, box girder completed 58%, earth and stone work in depot completed 9 1%, and Zhongliangshan tunnel excavation completed 98%.
Objectives: A package of civil construction and B package of electrical survey and design.
Project: Copper wire for urban rapid rail wall
Progress: The review of the feasibility study report has been completed.
Target: 65438+start in February.
Project: Jialingjiang Bridge in Hongyan Village
Progress: pier beams P 1, P2, P3 and P4 of Jialing River Bridge in Hongyan Village have all been completed. A5 abutment foundation excavation is completed, and cushion pouring is completed.
Goal: 2065438+2009 bridge project completed; 60% of the main structure and section reservation project of Hongyan Village Station of Rail Transit Line 5 has been completed.
Project: Guojiatuo Yangtze River Bridge and the southern section of Liuzong Line.
Progress: Four concrete piles are poured at Huahongwan Interchange in Jiangbei section, and 2 1 pile is poured at the main bridge on the north bank. Pouring of P6 pile foundation of South Bank main bridge.
Goal: This year, the P5 main tower will be completed110m, and the south extension pile foundation will be completed by 35%.
Project: Baijusi Yangtze River Bridge
Progress: The main bridge has completed 26 piles and 3 caps, and the construction of P7 and P8 main towers has been completed 10. The East Approach Bridge has completed 52 piles, 9 caps and 2 piers.
Goal: The pylons on both sides of the main bridge will complete 80% of the total height.
Project: Zengjiayan Jialing River Bridge
Progress: The main bridge has been closed. Excavation and support of the left line of the jiangbei and Yubei sections of the tunnel has been completed 187 1 m, and excavation and support of the right line has been completed1765m. Excavation and support of left line in Yuzhong section 1460m, excavation and support of right line1761m.
Objective: 20 19 main project construction
Project: Jialing River Bridge in Cai Jia
Progress: pile foundation of south approach bridge is completed 100%, and pile cap is completed1-10. North approach bridge pile foundation 100%, P 15-P24 cap 100%, pier cap 79%.
Objective: 20 19 main project construction
Project: Soil and Water Jialing River Bridge
Progress: The pile foundation and pile caps of the whole bridge of Shuitu Bridge are completed, the Jiangjiaping Interchange of Shuitu South Approach Road is about 22. 1%, the Honghua Interchange is about 5.6%, and the main line is about 6.7%.
Goal: the main tower will be completed in 20 19 years100%; 65% of the steel main girder is installed.
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