Intelligent drilling acquisition equipment and system for geotechnical engineering investigation

A technology of geotechnical engineering and acquisition equipment, applied in the field of exploration, can solve problems affecting the accuracy of exploration, soil sample damage, etc.

Pending Publication Date: 2021-09-14
福建泉成勘察有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventor believes that the soil samples at different depths are squeezed into the storage chamber through the sampling port; and as the drilling pipe drills, the soil that first enters the storage chamber is continuously squeezed and moves away from the storage chamber for sampling. One end of the mouth is moved, which will damage the collected soil samples to varying degrees, which may affect the exploration accuracy

Method used

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  • Intelligent drilling acquisition equipment and system for geotechnical engineering investigation
  • Intelligent drilling acquisition equipment and system for geotechnical engineering investigation
  • Intelligent drilling acquisition equipment and system for geotechnical engineering investigation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] refer to figure 1 The intelligent drilling and collection equipment for geotechnical engineering survey includes a sampling device 1 .

[0057] refer to figure 2 , image 3 , the sampling device 1 comprises a drill pipe 11, a collection cavity 12, a guide ring 13 and a pull-back member 14; the end of the drill pipe 11 that is drilled into the soil body is provided with a sampling port 111, and along with the drilling operation, part of the soil sample will be removed from the The sampling port 111 enters the drill pipe 11 .

[0058] The collection chamber 12 is built in the drill pipe 11; the collection chamber 12 includes a retractable ring pipe 121 and a sealing plate 122; The retractable ring pipe 121 is an organ cover structure, and the retractable ring pipe 121 is in a contracted state before drilling, and is located on the side close to the sampling port 111 . The sealing plate 122 is fixed on an end of the telescopic ring tube 121 away from the sampling port...

Embodiment 2

[0069] refer to Figure 4 , based on embodiment 1, the difference between this embodiment and embodiment 1 is that

[0070] A lubrication module 16 is provided between the collection cavity 12 and the drill pipe 11, and the lubrication module 16 is used to provide lubricant between the collection cavity 12 and the drill pipe 11 to reduce the friction between them. The lubricating module 16 can be sleeved on the outer periphery of the pullback member 14 , or can be embedded in the inner wall of the drill pipe 11 .

[0071] In this embodiment, the lubricating module 16 is arranged around the outer periphery of the pullback member 14 near the sealing plate 122 , and lubricant is stored in the lubricating module 16 . When starting, the lubricating module 16 can spray lubricant to the inner wall of the drill pipe 11, so that the lubricant can diffuse along the inner wall of the drill pipe 11 towards the area where the collection cavity 12 is located, so as to improve the lubricati...

Embodiment 3

[0075] refer to Figure 5 , based on the above-mentioned embodiment 1, the intelligent drilling acquisition system for geotechnical engineering investigation in this embodiment includes the central control equipment 2 and the above-mentioned drilling sampling device 1 .

[0076] The drilling sampling device 1 also includes a pullback monitoring module 17 arranged on the sealing plate 122 , a sampling monitoring module 18 arranged on the inner wall of the sampling port 111 , and a first depth monitoring module 19 arranged on the sampling port 111 .

[0077] The central control device 2 includes a control module 21, a data storage module 22, an alarm module 23, and a processing module 24; the processing module 24 is respectively connected to the control module 21, the data storage module 22, the pullback monitoring module 17, the sampling monitoring module 18, and the alarm module 24. module 23 and the first depth monitoring module 19. The control module 21 is connected to the ...

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Abstract

The invention relates to exploration engineering, in particular to intelligent drilling acquisition equipment and system for geotechnical engineering investigation. The intelligent drilling acquisition system comprises a central control device and a drilling sampling device of drilling acquisition equipment, wherein the sampling device comprises a drill pipe with a sampling port, a collection cavity, a pull-back piece and a pull-back driving piece, the sampling port is communicated with the collection cavity, and the inner diameter of the collection cavity is not smaller than that of the sampling port, so that the extrusion of a soil sample entering the collection cavity through the sampling port is relieved, and the risk that the soil sample is damaged due to extrusion is improved. According to the invention, whether external force is needed to assist in pulling back the collection cavity or not is determined by monitoring the pushing pressure of a sealing plate from the soil sample, a processing module compares the pushing pressure with a first pressure threshold value, a first control signal is sent to a control module, a pulling-back driving piece is controlled to drive the sealing plate and a telescopic ring pipe to move, and the extrusion degree between the soil samples is relieved.

Description

technical field [0001] The present application relates to the field of survey technology, in particular to an intelligent drilling and acquisition equipment and system for geotechnical engineering survey. Background technique [0002] Geotechnical engineering survey refers to the investigation, research, analysis and judgment of the construction site by means of testing methods and methods according to the requirements of the construction project. The scope of the research includes the geological conditions of the engineering buildings, the hardness of the natural geology after construction, the foundation structure and bearing capacity. Capacity, etc., and provide the engineering address and geotechnical engineering data required for foundation design and construction, and foundation reinforcement when necessary. [0003] During the survey process, it is often necessary to sample and analyze the rock and soil in the target area to determine the soil quality information of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 林月东黄春满吴国清
Owner 福建泉成勘察有限公司
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