Novel underpinning construction method for steel pipe under existing building foundation

A technology of existing buildings and construction methods, applied in infrastructure engineering, construction, building maintenance, etc., can solve the problem of unstable connection between underpinning piles and steel pipes, and achieve the effect of ensuring load strength and securing effect.

Active Publication Date: 2021-08-31
武汉武建机械施工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to improve the unstable connection between underpinning piles and steel pipes, this application provides a new underpinning construction method for steel pipes under existing building foundations

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  • Novel underpinning construction method for steel pipe under existing building foundation
  • Novel underpinning construction method for steel pipe under existing building foundation
  • Novel underpinning construction method for steel pipe under existing building foundation

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Embodiment Construction

[0047] The following is attached Figure 1-7 The application is described in further detail.

[0048] The embodiment of the present application discloses a new underpinning construction method of a steel pipe under an existing building foundation. refer to figure 1 and figure 2 , the new steel pipe underpinning construction method under the existing building foundation includes the following steps,

[0049] S1, preparatory work, excavating and leveling the site on all four sides of the building, so that the foundation 1 of the building leaks out to ensure the normal operation of the drilling rig;

[0050]S2, piling, a plurality of underpinning piles 3 are driven into both sides of the building to ensure that the height of the top of the underpinning pile 3 is lower than the position to be drilled, and the position of the underpinning pile 3 is close to the position of the foundation 1; the underpinning pile 3 uses The method of hammering is knocked into the soil, and the ...

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Abstract

The invention relates to a novel underpinning construction method for a steel pipe under an existing building foundation, and relates to the field of foundation construction. The novel underpinning construction method comprises the following steps of S1, carrying out preparation work; S2, piling; S3, drilling; S4, installing the steel pipe; S5, reinforcing the steel pipe; S6, repeating the operations from S3 to S5; S7, reinforcing and supporting; and S8, finishing. The novel underpinning construction method has the effects that the supporting strength of the steel pipe is improved, then the load strength of the steel pipe is achieved, the operation structure is simple and materials are environmentally friendly while the efficient underpinning of a steel column is ensured, and the construction cost is reduced.

Description

technical field [0001] The application relates to the field of foundation construction, in particular to a new underpinning construction method of steel pipes under foundations of existing buildings. Background technique [0002] At present, in the current social life, it is necessary to protect the safety of existing buildings, especially the foundation part. The construction method of embedding steel pipe brackets is selected for reinforcement. However, most of the existing construction methods are directly excavated at the bottom of the main body of the building. Then carry out the construction, which will directly cause damage to the building foundation, and is also not conducive to the operation of mechanical equipment. At the same time, the existing construction method cannot ensure the tightness of the combination of the steel pipe and the foundation, and the reinforcement stability is insufficient. Therefore, a new method needs to be proposed. construction method. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/48E04G23/06
CPCE02D27/48E04G23/06
Inventor 杨傲冷钢李锡银张明伦毛卓能
Owner 武汉武建机械施工有限公司
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