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Low gravity center three-axle spiral drilling machine and drilling method thereof

A technology of auger drilling rig and low center of gravity, which is applied to drilling equipment and methods, rotary drilling rigs, rotary drilling, etc. It can solve the problems of high center of gravity of auger drilling rigs and high center of gravity of drilling rigs, so as to increase construction depth and reduce overall weight , the effect of reducing the overall height

Active Publication Date: 2013-01-16
CHINA RAILWAY ENG MACHINERY RES & DESIGN INST +2
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  • Abstract
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Problems solved by technology

[0008] The object of the present invention is to provide a low-center-of-gravity three-axis auger drilling machine and its drilling method, which solves the problem of high center of gravity of the drilling rig without reducing the drilling depth, and overcomes the problem that the center of gravity of the auger drilling rig is too high in the prior art

Method used

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  • Low gravity center three-axle spiral drilling machine and drilling method thereof
  • Low gravity center three-axle spiral drilling machine and drilling method thereof

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Embodiment Construction

[0025] see figure 1 and figure 2 , the low-center-of-gravity three-axis auger drill of the present invention includes a body (not shown), a rubber tube winding frame 1, a rubber tube 2, a rubber tube guide wheel 3, a drilling power head 4, a third telescopic drill rod 5, a first The two-section telescopic drill pipe 6, the first helical telescopic drill pipe 7, the rotary joint 8, and the helical drill bit 9 are composed of a rubber tube winding frame 1, a rubber tube guide wheel 3, and a drilling power head 4 installed on the body; the third Sectional telescopic drill pipe 5, second telescopic drill pipe 6, and first section helical telescopic drill pipe 7 jointly form a telescopic telescopic combined drill pipe, wherein the telescopic combined drill pipe can also be two sections or four Sections and other different combinations, preferably three sections in this embodiment, are fixed by joint pins between the telescopic drill rods, and are positioned by joint pins when ext...

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Abstract

The invention relates to a low gravity center three-axle spiral drilling machine and a drilling method thereof. The drilling machine comprises a main body, a rubber tube, a rubber tube guide wheel, a rubber tube winding machine, a power head, a drill rod, a rotating joint and a spiral drill bit, wherein the drill rod is a telescopic sleeve drill rod; one end of the rubber tube is connected to thespiral drill bit by the rotating joint; and the joint between the telescopic sleeve drill rod and the rotating joint maintains a pipeline for delivering cement grout and gas a closed loop so as to effectively lower the height of the gravity center of construction equipment under the premise of not influencing the original construction technology.

Description

technical field [0001] The invention relates to an auger drilling machine and a drilling method thereof, in particular to a low-center-of-gravity three-axis auger drilling machine and a drilling method thereof. Background technique [0002] At present, a kind of SMW construction method is commonly used in drilling. This construction method is also called columnar soil cement wall construction method, that is, a multi-axis long helical drilling machine is used to drill holes in the soil. After the cement slurry of the diaphragm wall of different projects reaches the predetermined depth, reverse the lifting and continue to transport the cement slurry, fully stir, and build a section of cement-soil diaphragm wall at the original position, and then carry out the second section of wall construction to make the adjacent soil The cement walls have overlapping sections, and the continuous construction can make the underground continuous wall. At the same time, insert H-shaped steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B3/00E21B17/00
Inventor 章军平汤旭东朱雪峰
Owner CHINA RAILWAY ENG MACHINERY RES & DESIGN INST
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