A kind of underwater platform construction method

A construction method and construction preparation technology, applied in the direction of basic structure engineering, construction, etc., can solve the problems such as the difficulty of water sealing in the steel sleeve assembly gap, increase the construction cost, and prolong the construction period, so as to optimize the construction plan, reduce manpower, and protect the environment. Effect
CN104074199BActive Publication Date: 2017-02-08HANGZHOU HUANENG SAFETY ENG POLYTRON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU HUANENG SAFETY ENG POLYTRON TECH CO LTD
Publication Date
2017-02-08

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Abstract

The invention discloses an underwater bearing platform construction method. The underwater bearing platform construction method includes the following steps of (1) construction preparation, (2) steel plate coffering, (3) water pumping, (4) staking out in survey, (5) excavation of foundation pit, (6) pile head removing by chiseling, (7) underwater slush pumping, (8) cushion construction, (9) bearing platform construction, (10) concrete pouring, (11) concrete maintaining and form removal and (12) cofferdam removal. By means of the underwater bearing platform construction method, a bearing platform is stable and firm, meanwhile, a construction scheme is optimized, the construction period is further shortened, manpower and material resources are greatly reduced, economic benefits are remarkable, flying dust can not occur during construction, environment protection can be achieved, the accuracy during construction is effectively improved by the aid of secondary setting out of the bearing platform, the deviation is reduced, construction qualities are improved, and a whole pier column is stable.
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Description

technical field

[0001] The invention relates to a construction method of an underwater bearing platform. Background technique

[0002] In recent years, the large-diameter pillar-type bridge piers that have been popularized and applied in bridge construction mostly adopt the form of one pile and one column. The water level is lower than the normal water level. If the caps are all above the construction water level during construction, the construction can be carried out according to the conventional method; if a part of the caps is underwater, the steel casing method is usually used for construction. However, the entire cap is below the water surface during construction, and the cap is relatively large in size. Steel casings are generally used for construction. Due to the high water pressure in deep water operations, it is difficult to stop water in the gaps assembled by steel casings. In order to overcome the buoyancy of water, steel casings The amount of steel input into t...

Claims

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