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Floor heave prevention anchor pipe drilling machine

A technology for anchor drilling rigs and drilling rigs, which is applied to drill pipes, drill pipes, casings, etc.

Active Publication Date: 2014-05-07
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the prior art does not address the bottom sag drilling rig under soft rock conditions, the purpose of the present invention is to provide a bottom sag prevention and anchor pipe drilling rig that can perform efficient drilling under soft rock conditions

Method used

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  • Floor heave prevention anchor pipe drilling machine
  • Floor heave prevention anchor pipe drilling machine
  • Floor heave prevention anchor pipe drilling machine

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Embodiment Construction

[0019] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not limiting. this invention.

[0020] Such as figure 1 As shown, the present invention provides a bottom sag prevention anchor pipe drilling rig, including a base 1 , a frame 2 , a bracket 3 , a jacking device 4 , a drilling rig 5 and a controller 6 .

[0021] The base 1 can be a steel frame or an aluminum alloy frame, and can be firmly supported on the ground by a plurality of positioning feet on the bottom surface, so that the equipment installed on the base 1 can run smoothly. The base 1 is fixed with a pivot seat 11 by welding or bolts, and a pivot shaft can be installed on the upper end...

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Abstract

The invention provides a floor heave prevention anchor pipe drilling machine. The floor heave prevention anchor pipe drilling machine comprises a base, a machine frame, a jacking device and a drilling rig; wherein the base is supported on the ground; the front end of the machine frame is connected with the base in a pivoted mode; one end of the jacking device is fixed on the base, and the other end of the jacking device is fixed to the machine frame; the drilling jig is arranged on the machine frame in a sliding mode and comprises a power device, a drilling pipe and a drill; the jacking device drives the machine frame to pivot relative to the base, and the drilling jig on the machine frame reaches a drilling angle; the power device of the drilling jig drives the drill to conduct drilling through a drilling rod; during drilling, the drilling jig slides downwards along the machine frame. Rock dregs produced during hole drilling is successfully discharged through a through hole in the double-wall drilling rod under the action of positive pressure, and therefore an anchor pipe hole can be successfully drilled in the bottom of a roadway.

Description

technical field [0001] The invention relates to the technical field of bottom sag prevention and control anchor pipe drilling rigs, and is a drilling rig capable of drilling anchor pipe holes at the bottom of soft rock roadways so as to control roadway bottom sag by installing bottom angle anchor rods. Background technique [0002] One of the key points of roadway support under soft rock conditions is the floor of the roadway, and the bottom plate is the main form of roadway damage. Conventional methods such as traditional anti-arch bottom beams and pouring concrete are passive support methods, and it is difficult to control the bottom of the roadway, which is likely to cause repeated repairs of the roadway. At present, the effective measure to control the bottom sag is to control by installing the bottom anchor cable. By injecting grout in the anchor pipe and installing a constant resistance and large deformation anchor cable to form a high constant resistance and high pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B15/04E21B17/18E21B10/43
Inventor 何满潮王晓磊孙晓明王炯
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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