Abstract

The present invention provides a floating bridge structure and a construction process thereof. The floating bridge structure comprises a main bridge section located above a channel, an approach bridge section connected between an end portion of the main bridge section and the land, and a ship lock located at the center of the channel and below the main bridge section. The main bridge section comprises a plurality of first supporting structures spaced apart in the width direction of the channel and floating box bearing platforms provided with first box girders and arranged on top of the plurality of first supporting structures. The approach bridge section comprises a second supporting structure arranged in the width direction of the channel and a second box girder arranged on top of the second supporting structure. The ship lock is positioned between the first supporting structures located on two sides of the center of symmetry of the main bridge section. A first anchoring assembly and a second anchoring assembly are distributed below the main bridge section, and are used for anchoring the main bridge section and the ship lock, respectively. The floating bridge structure of the present invention is suitable for deep-water and soft-foundation water areas, and the span of the bridge is greater than that of conventional floating bridges, thereby achieving channel navigation without water depth limitations.

IPC Classes  ?

• E01D 15/14 - Floating bridges, e.g. pontoon bridges
• E01D 19/00 - Details of bridges
• E01D 2/04 - Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
• E02C 1/00 - LocksShaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
• E01D 101/30 - Metal
• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

Disclosed in the present invention is an application of a suspended beam and false cantilever construction technology in viaduct construction, the application comprising the steps as follows: a complete bridge positioned between adjacent expansion joints comprises several spans, and in different spans, beam sections near the expansion joints are constructed by means of a false cantilever, and remaining beam sections No. 1 on two sides of a cap beam are constructed by means of a suspended beam; in false cantilever construction, specifically, an expansion joint is taken as a center, and a segmental box girder close to the expansion joint is constructed by means of a temporary support; the suspended beam construction is specifically to use a post-anchoring technology, the suspended beam is assembled in an anchoring manner, and construction of the segmental box beams on two sides of the cap beam is completed in a suspended hanging manner by means of the suspended beam; and construction of the segmental box girders on two sides of the cap beam comprises: taking a central line of a longitudinal bridge direction of the cap beam as a symmetrical point, lifting the segmental box girders symmetrically to the suspended beam by means of a lifting appliance, adjusting the segmental box girders to design positions, making temporary fine-rolled deformed steel bars to penetrate the segmental box girders, forming permanent tension in a cross tension mode, and removing the suspended beam after completion.

IPC Classes  ?

• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges
• E01D 21/10 - Cantilevered erection

Abstract

A construction method for pulling out a concrete pipe pile on water and a pile pulling-out tool, wherein the construction method comprises the following steps: step one: a pile-driving barge lifts the pile pulling-out tool to the position of a PHC pipe pile such that the position of the pile pulling-out tool matches that of the PHC pipe pile; step two: the pile pulling-out tool is sunk to the bottom elevation of the PHC pipe pile, and lifts an inner sleeve (2) and the PHC pipe pile altogether by means of friction between the inner sleeve (2) and the PHC pipe pile; step three: the pipe pulling-out tool and the PHC pipe pile are lifted ashore by means of a hook of the pile-driving barge; step four: the PHC pipe pile is taken out; and step five: an outer sleeve (1) is pulled out and lifted ashore by means of a vibration hammer, and the inner sleeve and the outer sleeve (2,1) are assembled to pull out the next pile. The pile pulling-out tool lifts the inner sleeve (2) and a single PHC pipe pile by means of friction between the inner sleeve (2) and the PHC pipe pile, and the pile pulling-out tool and the single PHC pipe pile are lifted ashore by means of the hook of the pile-driving barge. The pile pulling-out process is simpler and the pile pulling-out efficiency is high.

IPC Classes  ?

• E02D 9/02 - Removing sheet pile bulkheads, piles, mould-pipes, or other moulds by withdrawing
• E02D 13/08 - Removing obstacles
• E02D 9/04 - Removing sheet pile bulkheads, piles, mould-pipes, or other moulds by cutting-off under water