104 National Highway Shaoxing Keqiao Qianqing to Keyan section reconstruction project TJ1 bid section construction bidding

Project overview and scope of tenders

The starting point of the project is located near Gujiadang, Qianqing Street, at the junction of Keqiao and Xiaoshan, starting from pile K0+011.334, following the proposed 104 National Highway Hangzhou Dajiang Donghezhuang to Xiaoshan Yaqian section of the project, the route passes through Qianqing, Huashe, Hutang and other streets, and finally near Hongqi Village, Keyan Street, Keqiao District, and connects with the current Keqiao section of National Highway 104, ending at pile K13+588.383, with a total length of about 13.6 kilometers. The route is arranged in a "Z" shape, Among them: the length of the interchange section from the starting point to Gujiadang is about 2.4 km, for the new viaduct section, the width of the bridge is 28 meters, the viaduct is connected to the reconstruction project of the Keqiao section of the Central Ring Road in Hangzhou; the length of the Gujiadang interchange to the Qinwang interchange section is about 7.3 km, which is the widening and reconstruction section of the ground road, with a subgrade width of 39.5 meters; the length of the Qinwang interchange to the end of the route is about 3.9 km, which is the widening and reconstruction section of the ground road of the current 104 National Highway, with a roadbed width of 39 meters, of which the central separation belt and the pier of the viaduct reconstruction project of the Keqiao section of the Hangzhou Central Ring Road are 39 meters. Parallel ramps are built and 8 meters wide. The project adopts the two-way six-lane first-class highway standard in the "Highway Engineering Technical Standard" (JTG B01-2014), the design speed is 80 km / h, the bridge and culvert design vehicle load level adopts highway - I. level, and other technical indicators comply with the provisions of the current relevant industry standards and norms, and meet the provisions of the Mandatory Provisions of the People's Republic of China "Engineering Construction Standards" (highway engineering part). The total estimated budget of the project approval is 199672 million yuan. The civil construction bidding set up 1 lot, the TJ1 lot: starting pile number is K0+011.334 ~ K13 +588.383, the main content is within a length of about 13.6 km of temporary engineering, subgrade engineering, pavement engineering, bridge culvert engineering, cross engineering, traffic engineering and facilities along the line, greening and environmental protection engineering, construction of other projects, completion, defect repair and warranty period warranty, etc., the main structures include: bridge 3082 meters / There are 12 (including the main line bridge in the interchange area), of which the special bridge is 2427 m/1 (the superstructure of the main bridge is a prestressed concrete variable section continuous box girder (with a span of 82+140+82 meters), the superstructure of the bridge is a prestressed concrete T beam, the substructure 9# pier is a gantry pier, the rest is a column pier, and the foundation is a bore-filled pile), the bridge is 322 meters/3 (the superstructure is a prestressed concrete hollow plate, the substructure is a column pier, and the foundation is a borehole pouring pile). Due to the navigation clearance requirements of the 22# bridge, the beam plate needs to be lifted, and the jacking height is 30cm), and the small and medium-sized bridge is 333 meters/10 (the superstructure of the Yuzhu Bridge is a prestressed concrete box girder, the superstructure of the remaining bridge is a prestressed concrete hollow slab, the substructure is a column pier, and the foundation is a borehole pouring pile); The estimated cost of the bidding scope is about 126815.9533 million yuan (including insurance premiums, temporary land occupation fees and preparation fees). Planned construction period: 40 months (1215 calendar days, excluding the mechanical and electrical trial operation period of 6 months, excluding the greening project protection period of 1 year; the elevated landing section needs to be completed before August 31, 2022 and ensure communication with the main line; the length of the Qinwang interchange to the end of the route is about 3.9 kilometers to be completed before August 31, 2022), and the defect liability period is 24 months (18 months for mechanical and electrical engineering, 12 months for greening projects).

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