Multi-power guide linkage compound drilling tool, preparation method and pile type

A dynamic drilling tool and composite drilling technology, 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, poor adaptability, etc., and achieve single pile bearing capacity The effect of improvement, work efficiency improvement and strong adaptability

Pending Publication Date: 2018-12-18
李广信
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a multi-power guiding position linkage composite drilling tool, a preparation method and a pile type to solve the existing

Method used

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  • Multi-power guide linkage compound drilling tool, preparation method and pile type
  • Multi-power guide linkage compound drilling tool, preparation method and pile type
  • Multi-power guide linkage compound drilling tool, preparation method and pile type

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment provides a multi-power composite drilling tool, which includes: a coaxial and coaxially set guiding linkage drilling tool, a middle power drilling tool and an upper power drilling tool; the middle power drilling tool and the upper power drilling tool are respectively equipped with There is a power mechanism, and the power mechanism can drive its corresponding drilling tool to rotate independently; The guiding position linkage is realized between the drilling tools; the guiding position linkage drilling tool, the middle power drilling tool and the upper power drilling tool are constructed according to the softness and hardness of the soil inside the design pile body depth and the distribution, and the appropriate construction method is adopted to match the corresponding The drilling tools are combined.

[0048] 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 ...

Embodiment 2

[0082] to combine Figure 12 to Figure 28 As shown, this embodiment 2 further provides a method for preparing the type pile 4 according to the multi-power guide position linkage composite drilling tool, which includes: according to the requirements of the formation for the construction method, the upper power drilling tool 1, the middle power drilling tool Drilling tool 2 and guiding drilling tool 3 are successively drilled to their respective design depths; start concrete pump 5, start to press and pour concrete, and successively lift upper power drilling tool 1, medium power drilling tool 2 and guiding position drilling tool while pressing and pouring concrete. Linkage drilling tools 3 until the bottom ends of each power drilling tool are leveled in turn, then the hole elevation is synchronously raised, and concrete is also pressure poured into piles to the design elevation at the same time.

[0083] In the treatment of soft foundations such as building structures or railway...

Embodiment 3

[0114] combine Figure 29 to Figure 32 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 a technical field of civil engineering, in particular to a multi-power guide linkage compound drilling tool, a preparation method and a pile type. The drilling tool comprisesa guide linkage drilling tool, a middle power drilling tool and an upper power drilling tool arranged in turn with a shaft sleeve. The upper power drill and the middle power drill are respectively provided with a power mechanism. The guided drilling tool is provided with a guide device. At least one of the guide drilling tool, the middle power drilling tool and the upper power drilling tool is composed of a drilling tool body with function of squeezing and discharging soil. In construction, each drill tool is transformed from a traditional linkage mode to an active drive with linkage auxiliarymode. The squeezing and discharging of the soil, and the drilling and grouting concrete pilling can be achieved at the same time. The automation degree is high and the work efficiency is improved. The modified diameter of a pile and reasonable working method make the bearing capacity of single pile be further increased, thereby reducing cost. Comprehensive factors above shorten the duration of construction.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a multi-power guide position linkage composite drilling tool, a preparation method and a pile type. 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 depth of the 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); the soil discharge area (medium hard site soil) , except for hard ground soil). [0003] In or...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B17/22E02D5/34
CPCE21B7/00E21B17/22E02D5/34
Inventor 李广信
Owner 李广信
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