Steel cofferdam caulking treatment method in sea-crossing bridge construction process

A processing method and a technology of the construction process, which can be applied in construction, infrastructure engineering, climate change adaptation, etc., and can solve problems such as unsatisfactory practicality, difficult process, and rubber strip washing away

Active Publication Date: 2021-09-07
CHINA RAILWAY 20 BUREAU GRP
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Problems solved by technology

[0005] However, further studies have shown that for construction scenarios such as bay tidal flat areas, they usually have the characteristics of abundant groundwater and obvious fluctuations in tidal water. In addition, as the buried depth increases, the lower water pressure is extremely high, and the protection struct

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  • Steel cofferdam caulking treatment method in sea-crossing bridge construction process
  • Steel cofferdam caulking treatment method in sea-crossing bridge construction process
  • Steel cofferdam caulking treatment method in sea-crossing bridge construction process

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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] figure 1 It is used to demonstrate the connection schematic diagram of locking steel pipe piles for water-proof sealing, figure 2 It is a schematic diagram for exemplary display of the positional relationship between the male and female locking buckles of the locking steel pipe pile and the elastic body water-proof layer. The following will combine figure 1 and figure 2 , to specifically explain the entire treatment process according to the present invention.

[0032] First, on the opposite side of the outer wall of the main body of the steel pipe pile such as a threaded welded pipe, a...

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Abstract

The invention belongs to the related technical field of bridge construction, and discloses a steel cofferdam caulking treatment method in the sea-crossing bridge building process. The steel cofferdam caulking treatment method in the sea-crossing bridge building process comprises the steps of welding a female lock catch and a male lock catch on a steel pipe pile main body correspondingly, and processing the outer end of the female lock catch into a tip shape; arranging a viscous elastomer waterproof slurry layer on the inner wall of the female lock catch in a mold pouring mode; conducting pile sinking operation to form steel pipe pile cofferdams connected end to end in series; and conducting concrete bottom sealing operation on a foundation pit, and meanwhile conducting blocking treatment on other possible leakage. According to the steel cofferdam caulking treatment method in the sea-crossing bridge building process, the water stopping effect of the steel pipe pile cofferdams can be remarkably improved, quality control and high-efficiency technological operation are facilitated, and therefore the caulking and water stopping requirements of the cofferdams in the sea-crossing bridge building process can be better met.

Description

technical field [0001] The invention belongs to the technical field related to bridge construction, and more specifically relates to a method for caulking steel cofferdams in the construction process of cross-sea bridges. Background technique [0002] As a temporary protection structure widely used in bridge foundation construction, cofferdams currently include earth-rock cofferdams, double-wall steel casing cofferdams, steel sheet pile cofferdams, steel pipe pile cofferdams, reinforced concrete caissons, etc. . Among them, the steel pipe pile cofferdam has received more and more attention in recent years due to its stable structure, strong adaptability, and high recovery rate. [0003] The water-stop effect of the steel pipe pile cofferdam directly affects the efficiency and even the project quality of the cap platform construction. Most of the existing steel pipe pile cofferdams are connected by CT-shaped locks. In order to ensure the water-stop effect, the conventional ...

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Application Information

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IPC IPC(8): E02D19/04E02D5/04E02D5/06
CPCE02D19/04E02D5/04E02D5/06Y02A10/11
Inventor 杨星智屈家奎李栋任高峰仲维玲王锋李宏强张华林雷建明王维军石新朋刘杰唐学杰杨泽杨凯
Owner CHINA RAILWAY 20 BUREAU GRP
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