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Reverse circulation construction technique and apparatus of single rope impact drill

A technology of construction device and construction process, applied in the field of reverse circulation construction process and device, can solve the problems of complex operation, limited adaptability, high equipment cost, etc.

Inactive Publication Date: 2008-10-01
张安禄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can overcome the shortcomings of the above-mentioned positive circulation process, but its equipment cost is large, the operation is complicated, and its technicality is strong, so its adaptability is limited and its market share is extremely small

Method used

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  • Reverse circulation construction technique and apparatus of single rope impact drill
  • Reverse circulation construction technique and apparatus of single rope impact drill
  • Reverse circulation construction technique and apparatus of single rope impact drill

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Embodiment Construction

[0027] The present invention will be explained in more detail below through examples, but the present invention is not limited thereto.

[0028] Such as figure 1 , 2 , Shown in 3 and 4, the reverse circulation construction device of this single-rope percussion drill includes a percussion drill, a slurry pumping pipe deep into the bottom of the hole, and a mud purifier positioned at the orifice; wherein,

[0029] In the percussion drilling machine, the drill bit 1 is composed of a drill body and a cutting blade. The drill body is composed of a hammer body, a corner plate and a base. There is a connecting hole 12 at the upper end of the hammer body 8. The drill bit 1 and the non-rotating steel wire rope 2 pass through the connecting hole 12. Knotted and fastened with a steering gear, a plurality of angled plates 9 are distributed at the same angle in the axial direction on the cylindrical or tubular hammer body 8, and the base is composed of an inner base 10 and an outer base 1...

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Abstract

The invention discloses a process and a device for the reverse circulation execution of a single rope impact drill, the reverse circulation execution device comprises a percussion drill, a slurry pumping pipe at the hole bottom and a slurry purifier at the hole mouth, the drill bit is composed of a drill bit body and a cutting blade, the drill bit body is composed of a hammer body, corner boards and a base, the upper end of the hammer body is provided with a connecting hold connected with a non-rotating rope, the corner boards are distributed in the same angle axially on the cylindrical or circular-tube-shaped hammer body, the base is composed of coaxial inner base and outer base, which are tube-shaped, the upper surfaces of the two base are in the same plane, the inner base is higher than the outer base, the lower ends of the corner boards are connected with the two bases, the hammer body, the corner plate and the base are integrated by welding, casting or riveting, the lower end of the base is evenly equipped with multiple cutting blades; pile types of various section shapes can be dilled by the drill bit, the reverse circulation process of hole bottom slag pumping is used when drilling, the execution process is fastened, the energy consumption is reduced, the slag is cleaned completely and clearly, the time for cleaning the hole is shortened.

Description

technical field [0001] The invention belongs to the technical field of building pile foundation construction, and in particular relates to a reverse circulation construction technique and device of a single-rope percussion drill. Background technique [0002] In pile foundation construction, underwater hole formation and cast-in-place pile formation are all concealed projects, and their construction is mostly restricted by natural conditions (climate, site, geology, energy...), and become the bottleneck that restricts the entire project. Therefore Therefore, people can only adapt to construction conditions and schedule requirements by adjusting equipment and updating processes. At present, the drilling rigs commonly used in construction include rotary drilling rigs, impact drilling rigs, bucket drilling rigs, punching and grabbing drilling rigs, etc. Among them, the impact drilling is the most adaptable, and this drilling type is divided into different types according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B1/00E21B21/00
Inventor 张安禄王四振
Owner 张安禄
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