Multi-power compound drilling tool, production method thereof and pile

A technology of power drilling tools and compound drilling, applied in drilling equipment and methods, drilling equipment, drill pipes, etc., can solve the problems of low single pile bearing capacity, low degree of automation, and single construction method, and achieve single pile bearing capacity The effect of improving, improving work efficiency and high degree of automation

Pending Publication Date: 2018-12-28
李广信
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of multi-power composite drilling tool, preparation method and type pile, to solve the equipment existing in the prior art with low degree of automation, single construction method, single pile type, poor adaptability, and low bearing capacity of single pile technical issues

Method used

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  • Multi-power compound drilling tool, production method thereof and pile
  • Multi-power compound drilling tool, production method thereof and pile
  • Multi-power compound drilling tool, production method thereof and pile

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Experimental program
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Effect test

Embodiment 1

[0043] This embodiment provides a multi-power composite drilling tool, which includes: a lower power drilling tool, a middle power drilling tool and an upper power drilling tool coaxially set in sequence; the lower power drilling tool, the middle power drilling tool and the upper power drilling tool The drilling tools are respectively equipped with a power mechanism, and the power mechanism can independently drive the corresponding drilling tools to rotate; the lower power drilling tool, the middle power drilling tool and the upper power drilling tool are constructed according to the design depth of the pile body and the soil softness in the ground. According to the degree of hardness and distribution, adopt the appropriate construction method and match the corresponding drilling tools for combination.

[0044] If the ground soil within the depth of the pile body is medium-hard ground soil (or most of it is medium-hard ground soil), the combined drilling tools are soil-discharg...

Embodiment 2

[0075] combine Figure 11 to Figure 26 As shown, the second embodiment provides a method for preparing the pile 4 according to the multi-power composite drilling tool, which includes: according to the requirements of the stratum for the construction method, the upper power drilling tool 1 and the middle power drilling tool 2 and the lower power drilling tool 3 successively drill to their respective design depths; start the concrete pump 5, start to press the concrete, and while pressing the concrete, successively lift the upper power drilling tool 1, the middle power drilling tool 2 and the lower power drilling tool 3, Until the bottom ends of each power drilling tool are flush in turn, the elevation of the hole is raised synchronously, and the concrete is also poured into piles to the design elevation at the same time.

[0076] In the treatment of soft foundations such as building structures or railways and highways, the foundation soil that needs to be treated can be general...

Embodiment 3

[0108] combine Figure 27 to Figure 36 As shown, this embodiment also provides a type pile 4 prepared according to the multi-power composite drilling tool, which includes: a main pile body 41; the main body pile body 41 is provided with at least two inverted conical stepped bodies 42 ; The range of the included angle between the extension line of the inclined plane at the variable diameter of the inverted tapered stepped body 42 and the central axis of the main pile body 41 is: 5°-90°. For example: the reduced diameter of the inverted cone stepped body 42 is located at the shallow part of the pile body, and the included angle between the extension line of the inclined plane where the reduced diameter of the inverted cone stepped body 42 is located and the central axis of the main pile body 41 The range value should be 30°~45°. Another example: the reduced diameter of the inverted tapered step-shaped body 42 is located in the deep part of the pile body, and the included angle ...

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Abstract

The invention relates to the technical field of civil engineering, in particular to a multi-power compound drilling tool, a production method thereof and a pile. The multi-power compound drilling toolcomprises a lower power drilling tool body, a middle power drilling tool body and an upper power drilling tool body which sleeve a same shaft sequentially, each of the three power drilling tool bodies is equipped with a power mechanism, and at least one of the three power drilling tool bodies comprises a drilling tool main body integrating soil squeezing and removing functions. The multi-power compound drilling tool has the advantages that when the multi-power compound drilling tool is used for construction, every drilling tool body is converted into active driving from traditional linkage tosqueeze and remove soil simultaneously and complete drilling and pressure grouting of the concrete pile once, and accordingly the automation degree is high and the work efficiency is improved; the single pile is provided with a variable-diameter pile body and formed according to a reasonable construction method, thereby being higher in bearing capacity and lower in cost; the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a multi-power composite drilling tool, a preparation method and a type pile. Background technique [0002] In the soft foundation treatment of building structures or bridges, ports, railways, highways, airports, water conservancy and hydropower facilities, etc., the foundation soil that needs to be treated can be generally divided into weak sites from shallow to deep according to the change law of equivalent shear wave velocity. Soil, medium soft field soil, medium hard field soil, hard field soil. According to the softness and hardness of the site soil and the distribution of each soil layer, the foundation soil can be simply divided into the compacted soil area (weak site soil, medium soft site soil, except for high water content or saturated cohesive soil); Site soil and hard site soil are excluded). [0003] In order to improve the bearing capacity of the foundati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B17/22E02D5/34
CPCE21B7/00E21B17/22E02D5/34
Inventor 李广信
Owner 李广信
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