Construction method of filling steel sheet pile cofferdam
A steel sheet pile cofferdam and construction method technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of large environmental impact, large space occupation, low utilization rate, etc., achieve good adaptability, reduce occupation The effect of improving the utilization rate of ground space
Active Publication Date: 2022-06-03
GUANGXI ROAD & BRIDGE ENG GRP CO LTD
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Problems solved by technology
[0004] The object of the present invention is to provide a steel sheet pile enclosure for filling soil in view of the technical problems of existing steel structure construction platforms on water that occupy a large space, high cost, low utilization rate and great impact on the environment in the background technology. Weir construction method
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Embodiment 1
like figure 1 As shown in the figure, a construction method of filling steel sheet pile cofferdam is applied to the pile foundation construction at the junction of sea and land in the island terrain as an example. Using the above construction method, before the specific construction, the topographic and topographic conditions are investigated, and each construction stage is analyzed. According to the working conditions, according to the calculation of water and soil pressure in the construction area, optimize the size design of the steel sheet pile cofferdam, establish the mechanical model of the steel sheet pile cofferdam, and perform structural verification in advance to provide data support for the specific construction in line with the actual construction environment.
[0020] The specific construction includes the following steps:
S1: According to the results of structural verification, at the design position, use a static pressure pile planter or a plate driver to drive ...
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The invention relates to the field of underwater building construction, in particular to a construction method of a filling steel sheet pile cofferdam, which comprises the following steps: S1, driving steel sheet piles to form a cofferdam; s2, filling the cofferdam with a filling material to a specified height; s3, peripheral hoops are installed on the cofferdam, and structural reinforcement is conducted; s4, the cofferdam is filled with filling materials to the tops of the steel sheet piles, and a construction platform is formed; s5, pile foundation construction operation is conducted on the construction platform; s6, after pile foundation construction is finished, filling materials are dug back layer by layer, cofferdam inner supports are constructed synchronously, and peripheral hoops are dismantled till the inner bottom of the cofferdam is lower than the designed height of a bearing platform; and S7, carrying out bearing platform steel sheet pile cofferdam dry construction on the pile foundation. The overwater bridge substructure construction platform can replace a traditional steel structure platform to conduct overwater bridge substructure construction, the utilization rate of the steel sheet piles is increased, the steel material use amount input for overwater bridge substructure construction is reduced, the construction cost is reduced, meanwhile, the overwater bridge substructure construction platform is good in adaptability to different terrain environments, the occupied space of overwater bridge substructure construction is reduced, and damage to the construction area environment is reduced.
Description
technical field [0001] The invention relates to the field of underwater building construction, in particular to a construction method of an earth-filled steel sheet pile cofferdam. Background technique [0002] The construction of the substructure of the bridge on the water is highly dependent on the steel structure construction platform. During the construction of the pile foundation, a steel casing needs to be set up. The transportation of the steel casing and construction equipment needs to set up a steel trestle, and the construction of the underwater bearing platform needs to set up a steel sheet pile enclosure. Weir or steel hanging box. During the construction of the existing water bridge substructure, steel construction platforms such as steel casing, steel trestle, and steel sheet pile cofferdam are set up independently, and the construction requires a large space and high cost, and the input steel material is relatively high. The utilization rate is relatively low,...
Claims
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IPC IPC(8): E02D19/04E02D5/04
CPCE02D19/04E02D5/04Y02A10/11
Inventor 李莘哲蒋赣猷韦景光王政森马澜锦杨茗钦陈松松郑伟锋黄业圣马文辉黄凯科郑健王乃双韦苡松朱俊颖黄俊权
Owner GUANGXI ROAD & BRIDGE ENG GRP CO LTD