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Efficient and environment-friendly long spiral rock-socketed pile machine

A technology of long auger and long auger, which is applied in drilling equipment and methods, construction, earthwork drilling and mining, etc., and can solve problems such as environmental pollution, noise pollution, and inability to drill into rocks

Inactive Publication Date: 2021-03-19
OCEAN UNIV OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing rock drilling piles mainly include percussion drilling rigs, rotary drilling rigs, and rotary drilling. During the working process, the noise pollution is serious, and a large amount of mud is produced to pollute the environment. The drilling efficiency is very low or even impossible to drill into the rock

Method used

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  • Efficient and environment-friendly long spiral rock-socketed pile machine
  • Efficient and environment-friendly long spiral rock-socketed pile machine
  • Efficient and environment-friendly long spiral rock-socketed pile machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1-4 As shown, a kind of high-efficiency and environment-friendly long spiral rock-socketed pile machine of the present invention comprises drill bit 1, long spiral drill rod 2, and described long spiral drill rod 2 is provided with helical blade 3; The outside of the long auger drill rod 2 is provided with an air supply outer pipe 4; the air supply outer pipe 4 passes through the helical blade 3 along the outer wall of the long auger drill rod 2;

[0029] Further, the high-efficiency and environment-friendly long spiral rock-socketed pile machine described in the present invention also includes a high wind pressure air compressor 5, a power head 6, a shock absorber 7, a long spiral drilling machine 8, and an air supply pipe 9; One end of the air supply pipe 9 is connected with the high wind pressure air compressor 5; the power head 6 is connected with the long auger drill rod 2 and is arranged on the top of the long auger drill rod 2 and the power head 6...

Embodiment 2

[0041] The difference between Embodiment 2 and Embodiment 1 is that the number of said air supply outer pipes 4 is three, and they are evenly distributed along the circumference of the cross-section of the long auger drill rod 2 .

Embodiment 3

[0043] The difference between Embodiment 2 and Embodiment 1 is that, in the high-efficiency and environment-friendly long spiral rock-socketed pile driver described in the present invention, the air supply outer pipe 4 passes through the spiral blade 3, and the air supply outer pipe 4 The number is 2, and the two air supply outer pipes 4 are evenly distributed along the circumference of the cross section of the long auger drill rod 2 .

[0044] Advantages of the present invention: by improving the drill rod structure of the long auger drilling rig, the drilling efficiency can reach 5 to 10 times that of the traditional long auger drilling rig when drilling into the rock. The bearing capacity of single pile can be increased by more than 15%. The high-pressure compressed air blows the cuttings and rock powder at the bottom of the hole generated during drilling away from the contact surface between the drill bit and the original rock, increasing the effective contact area between...

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Abstract

The invention belongs to the technical field of geotechnical engineering, and particularly relates to an efficient and environment-friendly long spiral rock-socketed pile machine. The efficient and environment-friendly long spiral rock-socketed pile machine comprises a high-power power head arranged at the top of a drilling machine and a long spiral drilling machine drill rod; the long spiral drilling machine drill rod is provided with spiral blades; an air supply outer pipe is arranged outside the long spiral drilling machine drill rod; the air supply outer pipe penetrates through the spiralblades along the outer wall of the long spiral drilling machine drill rod; and the drill bit is arranged at the end of the long spiral drilling machine drill rod. The efficient and environment-friendly long spiral rock-socketed pile machine has the advantages that by improving the structure of the long spiral drilling machine drill rod, the drilling efficiency during rock drilling can be 5-10 times that of a traditional long spiral drilling machine, and the single-pile bearing capacity of a cast-in-place pile formed through the process can be improved by 15% or above; and high-wind-pressure compressed air blows rock debris and rock powder at the bottom of a hole generated during drilling away from the contact surface of the drill bit and primary rock, so that the rock cutting and crushingcapacity of drill teeth is improved, the rock drilling efficiency is improved, and when the high-pressure air is pressed into the hole bottom to move upwards, the temperature of the drill bit and thedrill rod can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to an efficient and environment-friendly long spiral rock-socketed pile driver. Background technique [0002] With the rapid development of urban construction, skyscrapers are row upon row, building heights are getting higher and higher, and structural loads are increasing. The use of bored piles in building foundations as foundation engineering piles and foundation pit support piles is becoming more and more common. , the requirements for the bearing capacity of single piles and the penetration depth of cast-in-situ piles are getting higher and higher. The existing rock drilling piles mainly include percussion drilling rigs, rotary drilling rigs, and rotary drilling. During the working process, the noise pollution is serious, and a large amount of mud is produced to pollute the environment. The drilling efficiency is very low or even impossible to dril...

Claims

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Application Information

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IPC IPC(8): E21B7/02E21B15/00E21B17/22E21B21/16
CPCE21B7/02E21B15/00E21B17/22E21B21/16
Inventor 刘洪华刘红军王忠胜刘凯闫君徐红兵贾世祥王同洪
Owner OCEAN UNIV OF CHINA
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