Trestle-free overwater bridge pile foundation and bearing platform construction method

A construction method and bridge technology, applied in the direction of bridges, bridge forms, bridge construction, etc., can solve the problems of time-consuming disassembly and assembly of trestle bridges, high construction costs, and infrequent equipment operation.

Inactive Publication Date: 2020-10-27
CHONGQING COMM CONSTR GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the construction work can be completed, it is necessary to build trestles and supporting trestles from the shore to the position of the platform. Although the construction of these trestles is convenient for the operation of the equipment, the operation of the equipment is not frequent, mainly because the most artificial passages. The construction of the trestle requires a lot of steel and labor costs, so the cost of the construction is high, and the disassembly and assembly of the trestle in the later stage is also a waste of time

Method used

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  • Trestle-free overwater bridge pile foundation and bearing platform construction method
  • Trestle-free overwater bridge pile foundation and bearing platform construction method
  • Trestle-free overwater bridge pile foundation and bearing platform construction method

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Embodiment Construction

[0034] The present invention can be explained in detail through the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0035] combined with Figure 1 to Figure 7 A construction method for pile foundations and caps of bridges on water without trestles, using the combination of cofferdams 4 and pontoons 6 to realize construction operations without trestles, the cofferdams 4 circle the construction area 1 in the water, and in the construction area 1 Internal construction of pile foundation 3 and cap 2;

[0036] The cofferdam 4 is a closed rhombus structure, and the long symmetrical line 19 of the cofferdam 4 is arranged parallel to the water flow direction, and the short symmetrical line 20 of the cofferdam 4 is arranged perpendicular to the water flow direction;

[0037] The cofferdam 4 is composed of a V-shaped connecting frame 10, an I-shaped cofferdam 11 and a protrudin...

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Abstract

The invention discloses a trestle-free overwater bridge pile foundation and bearing platform construction method. The construction method adopts a cofferdam and floating bridge combined mode to realize trestle-free construction operation, the cofferdam encloses a construction area in water, and pile foundation and bearing platform construction is carried out in the construction area; the cofferdamis of a rhombus structure, so that water flow impact force borne by the whole cofferdam is smaller, a cofferdam and floating bridge combined mode is adopted to replace a traditional cofferdam and trestle combined mode for construction, and compared with a trestle, the floating bridge is convenient to assemble and disassemble, lower in manufacturing cost and capable of being repeatedly used.

Description

technical field [0001] The invention relates to the technical field of bridge construction over water, in particular to a construction method for pile foundations and caps of bridges over water without trestle bridges. Background technique [0002] Equipment (or temporary structures) used in traditional crafts: At present, the pile foundation under the bridge cap in the water area is constructed with a drilling platform, and the steel casing is used to stabilize the hole wall, prevent the hole from collapsing, isolate the surface water, guide the drill bit and fix the pile It is realized on the platform by drilling bored piles, placing steel cages and pouring concrete; while the construction of platform caps generally adopts structures such as steel sheet pile cofferdams, earth-rock cofferdams, steel hanging boxes, and steel sleeve boxes. and its corresponding construction techniques. [0003] Although the construction work can be completed, it is necessary to build trestle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E02D19/04E01D15/14E02D5/03E02D5/08E02D5/14E02D5/40E02D5/38E02D27/14
CPCE01D15/14E01D21/00E02D5/03E02D5/08E02D5/14E02D5/385E02D5/40E02D19/04E02D27/14E02D2250/0023
Inventor 黄宁刘国强张猛张庆明刁吉陈勇曾潇李慧英
Owner CHONGQING COMM CONSTR GRP
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