Construction method of pile body underwater cutting

A technology of underwater cutting and construction method, applied in sheet pile wall, foundation structure engineering, construction and other directions, can solve problems such as hidden danger, water leakage in dock, difficult to control the direction of dumping, etc., to achieve high safety and fast construction speed. Effect

Active Publication Date: 2012-10-17
CCCC THIRD HARBOR ENG +1
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Problems solved by technology

[0002] The existing underwater cutting adopts forming blasting cutting, which has two disadvantages. One is that the cut pile body is in a free state, and it is difficult to control the direction of its dumping. If it falls to the inside of the dock mouth, it will damage the dock mouth The structure caused damage; second, there was a certain amount of vibration from the blasting. The water-stop system under the bottom plate at the front of the dock uses high-pressure jet-spray piles to stop the water.

Method used

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  • Construction method of pile body underwater cutting
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  • Construction method of pile body underwater cutting

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Embodiment Construction

[0044] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0045] refer to figure 1 and Figure 4 As shown, the technological process is as follows:

[0046] Underwater cleaning→planting bolts on the bottom plate of the dock→perforating the retaining wall of the pile body→underwater cutting→cleaning outside the dock door

[0047] 1) Underwater cleaning

[0048] The +5.0m construction platform outside the enclosure system of the dock entrance and the soil below are excavated by dredgers. The underwater slope protection cleaning and underwater dredging are divided into two times. First, the surface rock slope protection is cleaned, and the mud surface is lowered to -4m, which meets the draft requirements of the large-scale watercraft used for demolition, and starts the second underwater dredging when t...

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Abstract

The invention discloses a construction method of pile body underwater cutting, wherein the method comprises the following steps: underwater cleaning, embedding bolt on a base plate of a dock port, drilling enclosure wall of the pile body, underwater cutting, and cleaning out dock gate; a chain saw cutting machine is used to act on a cast-in-place pile and a three-shaft stirring body which are to be disassembled to directly destroy the combination among molecules when the materials (metal, concrete and the like) are located at a solid state so as to form a cut, and then the cut-off materials are lifted away. The construction method has the beneficial effects of possible mechanization, easy operation, smooth cut, being suitable for the underwater cutting of materials in irregular shape and materials in large area and large volume, high security, high construction speed, environment protecting, no vibration, no noise, no dust and no pollution to water area.

Description

technical field [0001] The invention relates to a construction method for underwater cutting of a pile body, which is suitable for underwater demolition of the retaining wall of a dock mouth. Background technique [0002] The existing underwater cutting adopts forming blasting cutting, which has two disadvantages. One is that the cut pile body is in a free state, and it is difficult to control the direction of its dumping. If it falls to the inside of the dock mouth, it will damage the dock mouth The structure was damaged; secondly, there was a certain amount of vibration from the blasting. The water-stop system under the bottom plate at the front edge of the dock is water-stopped with high-pressure jet-spray piles. [0003] Therefore, in contrast, the construction of this method is safe and reliable. Contents of the invention [0004] In order to overcome the above-mentioned shortcoming, the object of the present invention is to provide a kind of construction method of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D9/04
Inventor 杜善丰陶云毛娟龙朱珍慧孙伟明蔡立张益军韩照晏顾博磊霍振东赵家旺
Owner CCCC THIRD HARBOR ENG
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