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Method for deeply processing and placing double-layer steel sleeve

A double-layer steel and double-sleeve technology, which is applied in the field of housing construction, can solve the problems of insufficient lowering of the reinforcement cage, thick slag at the bottom of the pile, and failure of the bearing capacity to meet the design requirements, so as to improve the quality of the pile body and reduce the sediment Effect

Inactive Publication Date: 2020-12-18
高荣琪青建设集团有限公司
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Problems solved by technology

[0002] In the construction of pile foundation projects in housing construction, the more common construction techniques include mud retaining bored piles and rotary drilling bored piles, but no matter which construction technology will be used when the stratum is complex or the weak layer is thick The reinforcement cage cannot be lowered in place due to the shrinkage cavity of the hole wall, or the slag at the bottom of the pile is thicker due to the collapse of the hole, so that the bearing capacity of the pile cannot meet the design requirements;

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  • Method for deeply processing and placing double-layer steel sleeve
  • Method for deeply processing and placing double-layer steel sleeve
  • Method for deeply processing and placing double-layer steel sleeve

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Embodiment 1

[0043] Embodiment 1, see Figure 1-4 , the present invention provides a technical solution: a method for deepening and placing a double-layer steel casing, comprising the following steps;

[0044] Step (1), double-steel casing deepening processing;

[0045] S1. Before using the steel plate for casing, the circumference is calculated according to the middle diameter of the pipe. When cutting the material, add 2mm welding shrinkage allowance for transverse seam, and add 2mm welding shrinkage allowance for each circular seam in the length direction, and use semi-automatic cutting machine to cut ;

[0046] S2. According to the thickness of the double-sleeve design plate, the steel plate adopts the form of single groove, both the outer groove and the inner groove are acceptable, and the internal root is cleaned and welded. After the groove is cut by a semi-automatic cutting machine, it is necessary to Check whether the diagonal error value of the plate is within the specified all...

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Abstract

The invention discloses a method for deeply processing and placing a double-layer steel sleeve. The method is characterized by comprising the following steps that (1) the double-layer steel sleeve isdeeply machined and manufactured; (2) circular seam treatment is carried out; (3) sleeve assembling is carried out; (4) mounting and fixing are carried out on the double-layer steel sleeve; and (5) hoisting, placing and constructing are carried out on the double-layer steel sleeve.

Description

technical field [0001] The invention relates to the technical field of house construction, in particular to a method for deepening and placing a double-layer steel casing. Background technique [0002] In the construction of pile foundation projects in housing construction, the more common construction techniques include mud retaining bored piles and rotary drilling bored piles, but no matter which construction technology will be used when the stratum is complex or the weak layer is thick The reinforcement cage cannot be lowered in place due to the shrinkage cavity of the hole wall, or the slag at the bottom of the pile is thicker due to the collapse of the hole, so that the bearing capacity of the pile cannot meet the design requirements; [0003] However, this construction method adopts double casings with the above two common construction techniques, which can completely avoid shrinkage holes and collapse holes encountered in the construction process, and make the concret...

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Application Information

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IPC IPC(8): E02D17/08E02D5/66E02D5/52B23P15/00B23P23/06
CPCB23P15/00B23P23/06E02D5/526E02D5/665E02D17/08E02D2300/0029E02D2600/20
Inventor 钱竹青钱琪琪沈彬炜沈萍高峰
Owner 高荣琪青建设集团有限公司