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A static penetrating sounding device and method for rock and soil geological exploration

A technology of static penetration and geological exploration, which is applied in the field of foundation soil survey, construction, infrastructure engineering, etc., and can solve the problem of the skew of static penetration equipment, the troublesome disassembly of the static penetration device, and the lack of a device for adjusting the level. And other issues

Active Publication Date: 2021-07-06
ENGINEERING RESEARCH INSTITUTE OF APPRAISAL AND STRENGTHENING SHANDONG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing static penetration testing equipment is not necessarily horizontal during actual exploration, and the existing static penetration testing equipment is directly fixed on the rock and soil, and lacks a device for adjusting the level, resulting in static penetration testing equipment There will be a skewed phenomenon, which will cause the probe rod to be pressed into the rock and soil not vertically and horizontally. The deflection of the probe rod will not only lead to inaccurate measurement data, but also more likely to cause the probe rod to break. Force penetration devices need to use very long steel nails to be fixed on the ground for exploration. After the exploration, the steel nails usually need to be pulled out manually. Even with the help of tools, it is very difficult to pull out the steel nails. The disassembly of the detection device has caused trouble

Method used

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  • A static penetrating sounding device and method for rock and soil geological exploration
  • A static penetrating sounding device and method for rock and soil geological exploration
  • A static penetrating sounding device and method for rock and soil geological exploration

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Effect test

Embodiment 1

[0061] see Figure 1-8 According to an embodiment of the present invention, a static CPT device for rock and soil geological exploration includes a base 1, a probe rod 2 and a probe 3, the base 1 is in the shape of a rectangular plate, and the middle part of the base 1 is provided with a perforation 4 , the four corners of the base 1 are provided with mounting holes 5, the top of the base 1 is provided with a horizontal plate 6, and the four corners of the horizontal plate 6 are provided with a spherical chute 7, and the spherical chute 7 can be moved. A steel ball 8 is provided, and a first screw rod 9 is fixed under the steel ball 8, and the outer wall of the lower end of the first screw rod 9 is threadedly connected with a threaded cylinder 10, and the threaded cylinder 10 is fixed on the base 1, Both ends of the horizontal plate 6 are fixed with a first hydraulic cylinder 11, the piston rod of the first hydraulic cylinder 11 is provided with a fixed plate 12 and the piston...

Embodiment 2

[0064] see figure 1 , 4 and 5, for the base 1, the base 1 is fixed on the ground 27 by steel nails 28 and the steel nails 28 all pass through the installation holes 5; for the first screw mandrel 9, the first wire The outer wall of the upper end of the rod 9 is welded with four metal rods 29 at equal intervals, and the outer wall of the end of the metal rod 29 away from the first screw rod 9 is fixedly covered with a non-slip rubber sleeve 30 .

[0065] Through the above solution of the present invention, the metal rod 29 can conveniently rotate the first threaded mandrel 9 , and the anti-slip rubber sleeve 30 can increase the anti-slip performance of the outer wall of the metal rod 29 .

Embodiment 3

[0067] see Figure 4 and 7 , for the first screw mandrel 9, a limit rope 31 is provided between the first screw mandrel 9 and the threaded barrel 10, and the upper end of the limit rope 31 is fixedly connected to the lower end of the first screw mandrel 9, The lower end of the limit rope 31 is fixedly connected to the inner wall of the lower end of the threaded cylinder 10; for the clamping plate 23, the clamping plate 23 has an arc-shaped structure and the clamping plate 23 matches the probe rod 2, The inner wall of the clamping plate 23 is processed with anti-slip lines 32 in the horizontal direction.

[0068] Through the above scheme of the present invention, the limit rope 31 can limit the movable range of the first screw rod 9, thereby preventing the first screw rod 9 from detaching from the threaded cylinder 10, and increasing the contact between the clamping plate 23 and the probe rod 2 area and can increase the coefficient of friction between the clamping plate 23 an...

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Abstract

The invention discloses a static penetration testing device and a control method for rock and soil geological exploration. The control method of the invention can ensure that the static penetration testing equipment can be controlled based on horizontal parameters during the actual exploration process. The change of the probe rod can be pressed into the rock and soil at the maximum vertical level, and the control parameters can be adjusted in time when an error occurs. The static penetrating device can use a biaxial level sensor to detect the levelness of the horizontal plate, and transmit the detected data to the processor for display on the display screen. By rotating the first screw rod, the horizontal plate can be adjusted to a horizontal level. State, so that the vertical horizontal plane of the probe rod can be pressed into the rock and soil through the first hydraulic cylinder, so that the accuracy of the detection data can be increased, and the phenomenon of rod breakage is not easy to occur when the probe rod is pressed vertically, and the third hydraulic cylinder can be used to The steel nails are pulled out, which can greatly reduce the difficulty of removing the steel nails.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular, to a static penetration testing device and a control method for rock and soil geological exploration. Background technique [0002] The basic principle of static penetration testing is to use static pressure to press a probe with a sensor inside into the soil at a constant speed. Due to the different softness and hardness of various soils in the formation, the resistance suffered by the probe is naturally different. The penetration resistance of different sizes is input into the recording instrument through electrical signals and recorded, and then through the qualitative and statistical correlations between the penetration resistance and the engineering geological characteristics of the soil. Static penetration testing is not only a means of in-situ testing, but also a means of exploration. Compared with conventional exploration procedures such as drilling, sampling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D1/00
CPCE02D1/00E02D2600/10
Inventor 刘国辉孙剑平邵广彪李莹江宗宝
Owner ENGINEERING RESEARCH INSTITUTE OF APPRAISAL AND STRENGTHENING SHANDONG JIANZHU UNIVERSITY
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