Sampling device for geotechnical engineering drilling investigation and sampling method thereof

A sampling device and geotechnical engineering technology, applied in the direction of sampling devices, etc., can solve the problems affecting the accuracy of the test results and the mixing of soil layers, so as to achieve the effect of simple process and improved accuracy

Active Publication Date: 2020-11-17
中化明达(福建)地质勘测有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: in the process of collecting soil layer samples by the drill pipe, there is a large friction force between the soil and the inner wall of the drill pipe, so that the soil is squeezed up and down when entering the inside of the drill pipe. Deep soil layers may be mixed during extrusion, affecting the accuracy of test results

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  • Sampling device for geotechnical engineering drilling investigation and sampling method thereof
  • Sampling device for geotechnical engineering drilling investigation and sampling method thereof
  • Sampling device for geotechnical engineering drilling investigation and sampling method thereof

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Embodiment Construction

[0044] The following is attached Figure 1-8 The application is described in further detail.

[0045] see figure 1 , is a sampling device for geotechnical engineering drilling survey disclosed in the embodiment of the present application, comprising a body 1 of the sampling device arranged in a sampling hole, and the sampling hole is drilled by a drilling rig.

[0046] see figure 1 , the body 1 includes a base 2 , a top base 3 and a support column 4 , and the support column 4 is symmetrically fixed between the base 2 and the top base 3 to realize the connection between the top base 3 and the base 2 . Both sides of the bottom of the top base 3 are respectively fixedly connected with fixing plates. When in use, the body 1 is put into the sampling hole so that the bottom of the base 2 abuts against the bottom of the sampling hole, and the bottom of the fixing plate abuts against the ground around the top of the sampling hole.

[0047] see figure 2 A mounting column 5 is arra...

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Abstract

The invention relates to a sampling device for geotechnical engineering drilling investigation, relates to the technical field of sampling equipment, improves the problem of low soil layer test accuracy, and comprises a body, the body comprises a base, a top seat and a supporting column, a mounting column slides between the top seat and the base, an air cylinder is arranged on one side of the mounting column, and an abutting plate is arranged on the air cylinder; the top seat is provided with an air pump, the mounting column is provided with a connecting rod, a connecting hole is formed in themounting column, the connecting rod slides in the connecting hole, a closed groove is formed in the mounting column, a closed column slides in the closed groove, and a penetrating hole is formed in the closed column; the base is provided with a driving plate, the connecting rod is provided with a sampling half cylinder, the sampling half cylinder is provided with a supporting plate, a sliding groove is formed in the sampling half cylinder, a closed half cylinder slides in the sliding groove and is rotationally connected with a rotating shaft, a transmission gear is fixed to the rotating shaft, a tooth groove is formed in the closed half cylinder, a rotating gear is fixed to the rotating shaft, and the mounting column is provided with a rack. The soil layer testing device has the effect ofimproving the soil layer testing accuracy.

Description

technical field [0001] The present application relates to the technical field of sampling equipment, in particular to a sampling device for geotechnical engineering drilling and investigation and a sampling method thereof. Background technique [0002] Drilling or exploration is the use of mechanical engineering technology for deep drilling. By taking the actual situation of the section of the stratum, physical samples are taken to provide experiments and obtain relevant data. Drilling rigs are generally used for drilling. [0003] At present, the Chinese utility model patent whose notification number is CN209670910U discloses a drilling device, which includes a drilling frame, a support platform, a drilling motor and a drilling rod. The drilling frame is erected vertically on the ground, the supporting platform is connected with the drilling frame by sliding up and down through the lifting guide device, the drilling motor is fixed to the supporting platform, the drilling ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 李森
Owner 中化明达(福建)地质勘测有限公司
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