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Extension casing and its construction method

A construction method and a casing technology, which can be applied to foundation structure engineering, buildings, sheet pile walls, etc., and can solve problems such as the difficulty of replacing the extended casing

Active Publication Date: 2021-05-14
中铁大桥局第七工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the object of the present invention is to provide an extension casing and its construction method, which can effectively solve the problem of difficulty in replacing or extending the casing when the underwater casing is damaged.

Method used

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  • Extension casing and its construction method
  • Extension casing and its construction method

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0036] figure 1 It is a structural schematic diagram of the variable diameter casing in the embodiment of the present invention, figure 2 It is a schematic structural view of the extension casing in the embodiment of the present invention, image 3 It is a structural schematic diagram of the construction of the extended casing in the embodiment of the present invention. like Figure 1 to Figure 3 As shown, the embodiment of the present invention provides an extension casing, including:

[0037] A variable-diameter casing 1, the variable-diameter casing includes a casing top section 11, a casing middle section 12, and a casing bottom section 13 that are sequentially connected coaxially, and the diameter D1 of the casing top section 11 is smaller than that of the casing bottom section 13 Diameter D2, the diameter D1 of the top section 11 of...

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Abstract

The invention discloses an extended casing. The extended casing includes: a variable-diameter casing. The variable-diameter casing includes a top section of the casing, a middle section of the casing, and a bottom section of the casing, which are sequentially connected coaxially. The diameter of the top section of the casing is smaller than the bottom section of the casing, and the diameter of the top section of the casing is configured to be the same as the diameter of the casing to be connected. A plurality of guide pieces guide the casing to be connected into the bottom section of the casing, and the plurality of guide pieces are arranged at intervals on the bottom section of the casing. The invention effectively solves the problem that the underwater casing is damaged, and it is difficult to replace or extend the casing.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to an extension casing and a construction method thereof. Background technique [0002] Casing is a circular barrel used to protect the hole piles due to the unstable soil quality during the process of manually digging the piles, which can prevent the holes from collapsing and thus avoid affecting the construction progress and safety. [0003] When constructing pile foundations in water, casing is a device commonly used, especially in the pile foundation construction of high pile caps in deep water. During the construction process, if there is an abnormal situation, the casing will be damaged, and the normal construction of the pile foundation will not be possible. [0004] In order to ensure the normal construction of the pile foundation, it is necessary to pull out the casing and then reinsert the casing. When it is difficult to remove the casing, the damaged part of the casin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/68E02D13/02
Inventor 郭焕李勇波程建华汪志祥苏子豪刘旭邓超
Owner 中铁大桥局第七工程有限公司