Rock-socketed oblique pile impact-drilling and pile-forming construction process

A construction technology and inclined pile technology, applied in the direction of impact drilling, drilling tools, earthwork drilling, etc., can solve the problems of lack of pile forming technology and less research on inclined piles, so as to ensure the quality of piles and ensure piles. Slope, the effect of ensuring perfusion quality

Inactive Publication Date: 2020-09-15
江西省地质工程集团有限公司
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Problems solved by technology

[0002] Inclined piles are widely used in the foundations of bridges, piers, long-span stadiums, and large-scale transmission lines. In production operations, relevant books and specifications on the design and construction of vertical pile foundations have been discussed in detail, but There are few studies on inclined piles, especially the pile-forming technology of large-diameter piles in geological conditions containing boulders, pebble layers and hard rocks is still lacking

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  • Rock-socketed oblique pile impact-drilling and pile-forming construction process
  • Rock-socketed oblique pile impact-drilling and pile-forming construction process
  • Rock-socketed oblique pile impact-drilling and pile-forming construction process

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Embodiment Construction

[0033] The technical solution of the invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0034] Such as Figure 1-Figure 9 As shown, a construction technique of percussion drilling for rock-socketed inclined piles provided in this embodiment is suitable for slopes less than 1:5 (perpendicularity is about 88.5 degrees), pile diameters are 600-1500mm, and pile lengths are not suitable. For inclined piles greater than 45m and less than 6m outside the bottom of the steel casing, the steps are as follows:

[0035] S1. Construction preparation stage: After construction personnel enter the construction site, level the site, build construction access roads or construction platforms to facilitate heavy vehicles to travel and construct, lay out lines according to the requirements of the design and construction drawings, and release the pile positions on the ground or at the elevation of the platform. The focus is t...

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Abstract

The invention discloses a rock-socketed oblique pile impact-drilling and pile-forming construction process which belongs to the technical field of port wharf tubular pile construction. The rock-socketed oblique pile impact-drilling and pile-forming construction process comprises the following steps: S1, performing a construction preparation stage; S2, mounting a steel casing guide frame; S3, performing impact holing; S4, clearing holes for the first time; S5, mounting a reinforcement cage; S6, mounting guide tubes; S7, clearing the holes for the second time; and S8, pouring concrete. Accordingto the rock-socketed oblique pile impact-drilling and pile-forming construction process disclosed by the invention, self-innovation equipment and a process are combined to solve oblique pile construction technical problems, so that oblique pile inclination and the pile-forming quality are guaranteed, and oblique pile design requirements are met.

Description

technical field [0001] The invention relates to the technical field of pipe pile construction at port wharves, in particular to a construction technique of percussive drilling of rock-socketed inclined piles into piles. Background technique [0002] Inclined piles are widely used in the foundations of bridges, piers, long-span stadiums, and large-scale transmission lines. In production operations, relevant books and specifications on the design and construction of vertical pile foundations have been discussed in detail, but There are few studies on inclined piles, especially the pile-forming technology of large-diameter piles under the geological conditions of boulders, pebble layers and hard rocks. Contents of the invention [0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a construction technology of rock-socketed inclined pile impact drilling into piles, using special equipment and const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B1/00E21B7/04E21B12/00E21B21/16E21B21/00E21B33/138
CPCE21B1/00E21B7/04E21B12/00E21B21/00E21B21/16E21B33/138
Inventor 胡培强尧在雨周伏萍邹明敖小平
Owner 江西省地质工程集团有限公司
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