CN107631901B - Soil sampling device and method for central part of compacted soil sample - Google Patents
Soil sampling device and method for central part of compacted soil sample Download PDFInfo
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- CN107631901B CN107631901B CN201710807407.9A CN201710807407A CN107631901B CN 107631901 B CN107631901 B CN 107631901B CN 201710807407 A CN201710807407 A CN 201710807407A CN 107631901 B CN107631901 B CN 107631901B
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Abstract
The invention belongs to the technical field of geotechnical tests and relates to a device and a method for taking out soil of a center part of a compacted soil sample, which comprises a bottom plate, a vertical rod, a bearing platform, a spoon, a graduated scale, a compaction cylinder, a motor, a rotary rod and blades, wherein the bottom plate is provided with a vertical rod; the vertical rod and the compaction cylinder are respectively arranged on the bottom plate; the bearing platform is arranged on the vertical rod and can freely slide along the axial direction of the vertical rod; the spoon and the graduated scale are movably arranged on the bearing platform; the motor is fixedly arranged on the bearing platform; a compaction soil sample is arranged in the compaction cylinder; the motor is connected with the blades through the rotating rods and drives the blades to rotate through the rotating rods; the blade is coaxial with the compaction cylinder. The invention provides the device and the method for taking the soil of the central part of the compacted soil sample, which can improve the test efficiency, are convenient to carry and have low processing cost.
Description
Technical Field
The invention belongs to the technical field of geotechnical tests and relates to a device and a method for taking out soil from the central part of a compacted soil sample.
Background
The compaction test is an important test for testing the maximum dry density and the optimal water content of the soil body, and has important significance for highway subgrade construction and quality control, and the test of the soil sampling position and the subsequent water content of the compacted soil sample has important influence on test data, so that the reasonable soil sampling and water content testing of the compacted soil sample have important practical significance and theoretical significance in the soil test.
The invention provides a device and a method for taking soil from the center part of a compacted soil sample, which are used for quickly and efficiently completing the soil taking work of the center position of the compacted soil sample.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides the device and the method for taking the soil of the central part of the compacted soil sample, which can improve the test efficiency, are convenient to carry and have low processing cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a hit real soil sample central part device that fetches earth which characterized in that: the soil sampling device at the central part of the compacted soil sample comprises a bottom plate, a vertical rod, a bearing platform, a spoon, a graduated scale, a compacted barrel, a motor, a rotary rod and blades; the vertical rod and the compaction cylinder are respectively arranged on the bottom plate; the bearing platform is arranged on the vertical rod and can freely slide along the axial direction of the vertical rod; the spoon and the graduated scale are movably arranged on the bearing platform; the motor is fixedly arranged on the bearing platform; a compaction soil sample is arranged in the compaction cylinder; the motor is connected with the blades through the rotating rods and drives the blades to rotate through the rotating rods; the blade is coaxial with the compaction cylinder.
Preferably, the device for taking out the soil from the center of the compacted soil sample used in the present invention further comprises a spring disposed between the rotating rod and the blade.
Preferably, the spoon and the graduated scale adopted by the invention are respectively arranged on the bearing platform through the hook.
Preferably, the bearing platform adopted by the invention is arranged on the vertical rod through the knob; the knob drives the bearing platform to freely slide on the vertical rod along the axial direction of the vertical rod.
Preferably, the vanes used in the present invention include two cross vanes, and the two cross vanes are welded through a center point.
Preferably, the outer edge of the cross-shaped blade used in the present invention is provided with a cutting edge.
Preferably, the motor used in the present invention is a vertical motor with a power of 250W.
The soil sampling method based on the soil sampling device for the center part of the compacted soil sample is characterized in that: the method comprises the following steps:
1) placing the compaction cylinder with the compaction sample on the bottom plate, ensuring that the center of the compaction cylinder is aligned with the blade, adjusting the position of the knob to ensure that the blade is contacted with the upper surface of the compaction sample in the compaction cylinder and ensure that the spring is in a compressed state;
2) after the test is started, the motor is started to drill soil, then the size is measured by the scale until the depth is close to the central position of the compaction soil sample in the compaction cylinder, the knob is adjusted to enable the blade to be separated from the compaction soil sample in the compaction cylinder, the remaining soil in the compaction soil sample in the compaction cylinder is taken out by the spoon, the knob is adjusted again to enable the blade to continue to drill soil, after the specified depth is reached, the motor is turned off, the knob is adjusted to enable the blade to ascend to the initial height, and finally the partial soil sample is taken out by the spoon, so that the soil sampling operation of the central part of the compaction soil sample is completed.
Preferably, the method adopted by the invention further comprises, after step 2):
3) after soil removal is completed, the compacting cylinder is removed, and the compacting cylinder, the spoon and the blades are cleaned to ensure that no attachment is on the surface for the next test.
The invention has the advantages that:
the invention provides a device and a method for taking out soil of a central part of a compacted soil sample, wherein the device for taking out soil of the central part of the compacted soil sample comprises a bottom plate, a vertical rod, a bearing platform, a spoon, a graduated scale, a compacting barrel, a motor, a rotary rod and blades; the vertical rod and the compaction cylinder are respectively arranged on the bottom plate; the bearing platform is arranged on the vertical rod and can freely slide along the axial direction of the vertical rod; the spoon and the graduated scale are movably arranged on the bearing platform; the motor is fixedly arranged on the bearing platform; a compaction soil sample is arranged in the compaction cylinder; the motor is connected with the blades through the rotating rods and drives the blades to rotate through the rotating rods; the blade is coaxial with the compaction cylinder. The bearing platform is used for hanging the motor and related components, the hook is used for hanging the spoon and the graduated scale, the spoon is used for taking out redundant soil samples, the graduated scale is used for measuring and measuring the drilling depth, the blades are ensured to reach the central position of the cylindrical soil samples, the blades are used for drilling the cylindrical soil samples, the bottom plate is used for placing the compacting cylinder and the fixed vertical rod, the rotary rod is used for driving the blades to rotate, the spring is used for buffering the vibration of the blades and reducing the influence of the vibration on the motor and the device, the compacting cylinder with the compacting soil samples is placed on the bottom plate before the test, the center is aligned with the blades, the position of the rotary knob is adjusted, the blades are in contact with the top surface of the soil samples, the spring is ensured to be in a compressed state, the motor is started to drill the soil, then the size is measured by the graduated scale until the depth is close to the central position of the soil samples, the rotary knob is, and finally, the part of the soil sample is taken out by a spoon, so that the soil sampling work of the central part of the compacted soil sample is completed, the subsequent moisture content test can be conveniently and smoothly carried out, the efficient soil sampling of the central part of the compacted soil sample is realized through the design of the soil sampling device and the innovation of the soil sampling method, the test efficiency is improved, the processing cost is low, and the soil sampling device is easy to popularize and apply in production and teaching. The device for taking out the soil of the central part of the compacted soil sample provided by the invention realizes the purpose of taking out the soil of the central part of the compacted soil sample through the arrangement of the drilling blades and the graduated scale, lays a foundation for the subsequent high-efficiency test of the water content, has important significance for the test research of the maximum dry density and the optimal water content of the soil sample, and has the advantages of simple structure, convenience in carrying, low processing cost and easiness in popularization and application in production and teaching.
Drawings
FIG. 1 is a schematic structural view of a device for sampling soil at a center portion of a compacted soil sample according to the present invention;
wherein:
1-a bearing platform; 2-hooking; 3-a knob; 4-spoon; 5-a graduated scale; 6-vertical rod; 7-a bottom plate; 8-compacting cylinder; 9-cylindrical soil sample; 10-a blade; 11-a spring; 12-rotating rod; 13-motor.
Detailed Description
The structure and method of operation of the present invention will be described in further detail with reference to the following detailed description of the preferred embodiments and the accompanying drawings in which:
referring to fig. 1, the present invention provides a device for taking out soil from a center part of a compacted soil sample, which comprises a bottom plate 7, a vertical rod 6, a bearing platform 1, a spoon 4, a graduated scale 5, a compacting barrel 8, a motor 13, a rotary rod 12 and blades 10; the vertical rod 6 and the compaction cylinder 8 are respectively arranged on the bottom plate 7; the bearing platform 1 is arranged on the vertical rod 6 and can freely slide along the axial direction of the vertical rod 6; the spoon 4 and the graduated scale 5 are movably arranged on the bearing platform 1; the motor 13 is fixedly arranged on the bearing platform 1; a compaction soil sample is arranged in the compaction cylinder 8; the motor 13 is connected with the blade 10 through a rotating rod 12 and drives the blade 10 to rotate through the rotating rod 12; the blade 10 is coaxial with the compaction cylinder 8.
Meanwhile, the device for taking out the soil at the central part of the compacted soil sample further comprises a spring 11 arranged between the rotating rod 12 and the blade 10; the spoon 4 and the graduated scale 5 are respectively arranged on the bearing platform 1 through the hook 2; the bearing platform 1 is arranged on the vertical rod 6 through the knob 3; the knob 3 drives the bearing platform 1 to freely slide on the vertical rod 6 along the axial direction of the vertical rod 6; the blades 10 comprise two cross-shaped blades, and the two cross-shaped blades are welded through a central point; the outer edge of the cross-shaped blade is provided with a cutting edge; the motor 13 is a vertical motor with a power of 250W.
In addition, the invention also provides an earth sampling method based on the previous device for sampling earth at the center part of the compacted soil sample, which comprises the following steps:
1) placing a compaction cylinder 8 with a compaction sample on a bottom plate 7, ensuring that the center of the compaction cylinder 8 is aligned with a blade 10, adjusting the position of a knob 3, enabling the blade 10 to be in contact with the upper surface of the compaction sample in the compaction cylinder 8, and ensuring that a spring 11 is in a compressed state;
2) after the test is started, a motor 13 is started to drill soil, then the size is measured by a graduated scale 5 until the depth is close to the central position of the compaction soil sample in the compaction cylinder 8, a knob 3 is adjusted to enable a blade 10 to be separated from the compaction soil sample in the compaction cylinder 8, the remaining soil in the compaction soil sample in the compaction cylinder 8 is taken out by a spoon 4, the blade 10 is further adjusted to drill soil continuously by the knob 3, after the specified depth is reached, the motor 13 is closed, the knob 3 is adjusted to enable the blade 10 to ascend to the initial height, and finally the part of soil sample is taken out by the spoon 5, so that the soil sampling operation of the central part of the compaction soil sample is completed;
3) after the soil removal is completed, the compacting barrel 8 is removed, and the compacting barrel 8, the spoon 4 and the blade 10 are washed to ensure that no attachment is present on the surface for the next test.
The following detailed description will be given by taking specific embodiments as examples:
example 1:
referring to fig. 1, a device for taking soil from the center of a compacted soil sample comprises a bearing platform 1, a hook 2, a knob 3, a spoon 4, a graduated scale 5, a vertical rod 6, a bottom plate 7, a compaction cylinder 8, blades 10, a spring 11, a rotary rod 12 and a motor 13; the bearing platform 1 is 26.9cm long, 0.6cm thick and high in strength and is used for hanging the motor 13 and related components. The hook 2 comprises a left hook 2 and a right hook 2 which are spaced by 4.3cm and are respectively used for hanging the spoon 4 and the graduated scale 5; the knob 3 is used for adjusting the height of the bearing platform 1, so that the blades 10 can conveniently drill into a soil sample to take soil; the measuring range of the graduated scale 5 is 20cm, and the graduated scale is used for measuring and measuring the drilling depth and ensuring that the blade 10 reaches the central position of the cylindrical soil sample 9; the vertical rod 6 is 43.4cm long and is fixed at one end of the bottom plate 7; the compaction cylinder 8 is 17cm high, is the compaction cylinder 8 after the heavy compaction test is finished, and the interior of the compaction cylinder is a compaction soil sample; the blade 10 is formed by welding two cross-shaped blades with the same size and is used for drilling a cylindrical soil sample 9; the spring 11 is used for buffering the vibration of the blade 10 and reducing the influence of the vibration on the motor 13 and the device; the rotating rod 12 is 11cm long and is used for driving the blade 10 to rotate; the motor 13 is a 250W vertical motor 13 and is used for driving the rotating rod 12 to rotate.
The operation method of the soil sampling device for the center part of the compacted soil sample comprises the following steps:
A. according to the installation instrument shown in fig. 1, a compaction cylinder 8 with a compaction sample is arranged on a bottom plate 7, the center is ensured to be aligned with a blade 10, the position of a knob 3 is adjusted, so that the blade 10 is contacted with the top surface of the soil sample, and a spring 11 is ensured to be in a compressed state;
B. after the test is started, a motor 13 is started to drill soil, then the scale 5 is used for measuring the size until the depth is close to the central position of the soil sample, a knob 3 is adjusted to enable a blade 10 to be separated from the soil sample, the spoon 4 is used for taking out the residual soil in the soil sample, the knob 3 is adjusted again to enable the blade 10 to continue to drill the soil, after the specified depth is reached, the motor 13 is closed, the knob 3 is adjusted to enable the blade 10 to be lifted to the initial height, finally the spoon 4 is used for taking out the part of the soil sample, and the soil sampling work of compacting the central part of the soil sample is completed;
C. after the soil removal is completed, the compacting barrel 8 is removed, and the compacting barrel 8, the spoon 4 and the blade 10 are cleaned to ensure that no attachment is left on the surface for the next test.
The device for sampling soil at the central part of the compacted soil sample achieves the purpose of sampling soil at the central part of the compacted soil sample by the arrangement of the drilling blades 10 and the graduated scale 5, lays a foundation for subsequent high-efficiency testing of water content, has important significance for testing and researching the maximum dry density and the optimal water content of the soil sample, and is simple in structure, convenient to carry, low in processing cost and easy to popularize and apply in production and teaching.
Finally, the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the best embodiment, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a hit real soil sample central part device that fetches earth which characterized in that: the device for taking the soil from the center part of the compacted soil sample comprises a bottom plate (7), a vertical rod (6), a bearing platform (1), a spoon (4), a graduated scale (5), a compacting cylinder (8), a motor (13), a rotary rod (12) and blades (10); the vertical rod (6) and the compaction cylinder (8) are respectively arranged on the bottom plate (7); the bearing platform (1) is arranged on the vertical rod (6) and can freely slide along the axial direction of the vertical rod (6); the spoon (4) and the graduated scale (5) are movably arranged on the bearing platform (1); the motor (13) is fixedly arranged on the bearing platform (1); a compaction soil sample is arranged in the compaction cylinder (8); the motor (13) is connected with the blades (10) through the rotating rods (12) and drives the blades (10) to rotate through the rotating rods (12); the blade (10) is coaxial with the compaction cylinder (8);
the device for taking the soil at the central part of the compacted soil sample further comprises a spring (11) arranged between the rotating rod (12) and the blade (10); the blade (10) is in contact with the upper surface of a compaction soil sample in the compaction cylinder (8) and ensures that the spring (11) is in a compressed state.
2. The device for sampling soil at a center portion of a compacted soil sample according to claim 1, wherein: the spoon (4) and the graduated scale (5) are arranged on the bearing platform (1) through the hook (2) respectively.
3. The device for sampling soil at a center portion of a compacted soil sample according to claim 2, wherein: the bearing platform (1) is arranged on the vertical rod (6) through the knob (3); the knob (3) drives the bearing platform (1) to freely slide on the vertical rod (6) along the axial direction of the vertical rod (6).
4. The device for sampling soil at a compacted soil-like center according to claim 1, 2 or 3, wherein: the blade (10) comprises two cross-shaped blades, and the two cross-shaped blades are formed by welding central points.
5. The device for sampling soil at a center portion of a compacted soil sample according to claim 4, wherein: the outer edge of the cross-shaped blade is provided with a cutting edge.
6. The device for sampling soil at a center portion of a compacted soil sample according to claim 5, wherein: the motor (13) is a vertical motor with the power of 250W.
7. A soil sampling method based on the device for sampling soil at the center of a compacted soil sample according to claim 6, wherein: the method comprises the following steps:
1) placing a compaction cylinder (8) with a compaction sample on a bottom plate (7), ensuring that the center of the compaction cylinder (8) is aligned with a blade (10), adjusting the position of a knob (3), enabling the blade (10) to be in contact with the upper surface of the compaction sample in the compaction cylinder (8), and ensuring that a spring (11) is in a compressed state;
2) after the test is started, a motor (13) is started to drill soil, then the size is measured by a graduated scale (5) until the depth is close to the center position of a compaction soil sample in a compaction cylinder (8), a knob (3) is adjusted to enable a blade (10) to be separated from the compaction soil sample in the compaction cylinder (8), the remaining soil in the compaction soil sample in the compaction cylinder (8) is taken out by a spoon (4), the blade (10) is further drilled by adjusting the knob (3), after the specified depth is reached, the motor (13) is turned off, the knob (3) is adjusted to enable the blade (10) to ascend to the initial height, finally the part of the soil sample is taken out by the spoon (5), and the soil taking work of the center part of the compaction soil sample is completed.
8. The method of claim 7, wherein: the method further comprises, after step 2):
3) after soil removal is completed, the compacting barrel (8) is removed, and the compacting barrel (8), the spoon (4) and the blade (10) are cleaned to ensure that no attachment is on the surface for the next test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710807407.9A CN107631901B (en) | 2017-09-08 | 2017-09-08 | Soil sampling device and method for central part of compacted soil sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710807407.9A CN107631901B (en) | 2017-09-08 | 2017-09-08 | Soil sampling device and method for central part of compacted soil sample |
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| CN107631901A CN107631901A (en) | 2018-01-26 |
| CN107631901B true CN107631901B (en) | 2020-10-16 |
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