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Bottom water sealing device for cofferdam construction process

A technology for cofferdams and I-beams is applied in protection devices, infrastructure engineering, buildings, etc., which can solve the problems of high construction cost, long construction period, and large environmental pollution, and achieve short construction period and low environmental pollution. , the effect of low cost

Pending Publication Date: 2021-12-31
TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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Problems solved by technology

The principle of this method is to balance the pressure of the water head difference inside and outside the cofferdam through the self-weight of the back-sealing concrete and the cohesion of the back-sealing concrete and the steel casing. For the cap foundation in a deep-water area, the thickness of the back-sealing concrete is set thicker, and the construction cost is higher. , The construction period is long, and the environmental pollution is relatively large

Method used

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  • Bottom water sealing device for cofferdam construction process
  • Bottom water sealing device for cofferdam construction process
  • Bottom water sealing device for cofferdam construction process

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Features such as component models, material names, connection structures, and control methods that are not clearly stated in this technical solution are regarded as common technical features disclosed in the prior art.

[0031] In the process of conception on the filing date, in order to ensure that the construction process of the wading cap is a dry working environment, the present invention relates to a water sealing device at the bottom of the cofferdam. Compared with the current method of sealing water at the bottom of the cofferdam with back-sealing concrete, the construction period is shorter , low cost and less environmental pollution.

[0032] At present, back-sealing concrete is often used to seal water at the bottom of the cofferdam. The principle of this method is to balance the water pressure caused by the head difference inside and...

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Abstract

The invention relates to a bottom water sealing device for a cofferdam construction process. The bottom water sealing device comprises a concrete leveling layer, a water sealing steel plate, a cross beam and a steel casing, wherein the concrete leveling layer is arranged above a basic soil layer; the water sealing steel plate is arranged above the concrete leveling layer; the cross beam is arranged above the water sealing steel plate; and the steel casing sequentially penetrates through the water sealing steel plate and the concrete leveling layer, and the steel casing is arranged at the joint of the cross beam and connected with the cross beam. Compared with the prior art, the device has the advantages of being short in construction period, low in manufacturing cost and small in environmental pollution compared with an existing method for sealing water at the bottom of the cofferdam through bottom sealing concrete.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a bottom water sealing device used in the cofferdam construction process. Background technique [0002] Bridges across rivers, rivers and seas are limited by their spans, and bridge piers will inevitably be located in water. In order to ensure the construction quality of wading caps and bridge piers, the construction must be in a dry working environment. [0003] At present, the purpose of sealing water and stopping water is generally achieved by pouring bottom-sealing concrete in the cofferdam. The principle of this method is to balance the pressure of the water head difference inside and outside the cofferdam through the self-weight of the back-sealing concrete and the cohesion of the back-sealing concrete and the steel casing. For the cap foundation in a deep-water area, the thickness of the back-sealing concrete is set thicker, and the construction cost is higher. , The con...

Claims

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Application Information

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IPC IPC(8): E02D19/04E02D31/02
CPCE02D19/04E02D31/02
Inventor 李金国周文骏杨梓牛伟迪
Owner TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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