CN211113577U - Soil sampler for measuring compaction degree of fine-grained soil roadbed - Google Patents
Soil sampler for measuring compaction degree of fine-grained soil roadbed Download PDFInfo
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- CN211113577U CN211113577U CN201922036151.3U CN201922036151U CN211113577U CN 211113577 U CN211113577 U CN 211113577U CN 201922036151 U CN201922036151 U CN 201922036151U CN 211113577 U CN211113577 U CN 211113577U
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Abstract
The utility model provides a soil sampler for measuring the compaction degree of a fine grained soil roadbed, which belongs to the technical field of roadbed compaction degree tests and comprises a sample cylinder, a foot boot, a support frame, a support ring, a loading block and a roller; the foot shoe is of an annular structure matched with the section size of the sample cylinder, the top end of the foot shoe is supported at the bottom end of the sample cylinder, and the bottom end of the foot shoe is a blade end; the support frame comprises two vertical rods symmetrically arranged at the top end of the sample cylinder and a cross rod connected with the top ends of the two vertical rods; the support ring is an annular structure matched with the section size of the sample cylinder and is arranged on the two vertical rods in a sliding and penetrating mode; the loading block is slidably arranged on the two vertical rods in a penetrating way and is positioned above the support ring; the cylinder is located the top of loading piece, and the center pin rotates and installs on two montants, and the barrel is fixed on the center pin, and the winding has the connection rope on the barrel, connects the rope and is connected with the loading piece. The soil sampler can solve the technical problem that the soil sampling by the middle annular cutter method in the prior art is difficult to ensure that the annular cutter is vertically pressed downwards.
Description
Technical Field
The utility model belongs to the technical field of the road bed compactness is experimental, a survey soil sampler of fine grain dirt road bed compactness is specifically disclosed.
Background
The roadbed compactness is one of key indexes for roadbed and pavement construction quality detection, the density condition after on-site compaction is represented, and the higher the compactness is, the higher the density is, and the better the overall performance of the material is. The method for detecting the compaction degree of the fine-grained soil subgrade mainly comprises a sand filling method and a cutting ring method. According to the test method for measuring compactness by the pit digging and sand filling method of T0921-2008, the sand filling method is suitable for various soils, has the advantages of accurate measured value and complex operation, needs to put a substrate on a road surface to be detected, vertically chisels holes along holes in the substrate, takes out chiseled samples, puts the chiseled samples into a plastic bag, and then fills the holes with sand for measurement. According to T0923-1995 & lt & ltring cutter method for determining compactness & gt, the ring cutter method is suitable for fine-grained soil without aggregates, and has the advantages that the equipment is simple and convenient to operate, the cutting edge of the ring cutter is placed on the road surface to be detected, the ring cover is covered, the ring cover is uniformly knocked, the ring cutter is driven into the road surface to be detected, the ring cover is taken down and taken out, the residual soil at the two ends of the ring cutter is cut off, the mass of the ring cutter and the mass of the soil are measured, the mass of the ring cutter is subtracted, and the volume of the ring cutter is removed to obtain the. In the cutting ring method, the cutting ring is guaranteed to be pressed perpendicularly in the knocking process, otherwise, the accuracy of sampling is affected, but the cutting ring is often difficult to guarantee to be pressed perpendicularly due to subjective influence of workers in actual operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a geotome of survey fine grain dirt road bed compactness to it is difficult to guarantee that the cutting ring pushes down perpendicularly to improve prior art zhonghuan sword method geotome, and there is the technical problem of deviation in the sample.
In order to achieve the purpose, the utility model provides a soil sampler for measuring the compaction degree of a fine-grained soil roadbed, which comprises a sample cylinder, a foot shoe, a support frame, a support ring, a loading block and a roller; the foot shoe is of an annular structure matched with the section size of the sample cylinder, the top end of the foot shoe is supported at the bottom end of the sample cylinder, and the bottom end of the foot shoe is a blade end; the support frame comprises two vertical rods symmetrically arranged at the top end of the sample cylinder and a cross rod connected with the top ends of the two vertical rods; the support ring is an annular structure matched with the section size of the sample cylinder and is arranged on the two vertical rods in a sliding and penetrating mode; the loading block is slidably arranged on the two vertical rods in a penetrating way and is positioned above the support ring; the cylinder is located the top of loading piece, and the center pin rotates and installs on two montants, and the barrel is fixed on the center pin, and the winding has the connection rope on the barrel, connects the rope and is connected with the loading piece.
Further, a roller mounting block is arranged on the vertical rod; the two ends of the central shaft penetrate through the roller mounting block.
Furthermore, one end of the central shaft penetrates through the roller mounting block and is connected with a Z-shaped handle.
Further, the height of the sample cylinder is the same as the compacted thickness of the roadbed to be detected.
Furthermore, a lifting ring is arranged on the loading block; the end part of the connecting rope is provided with a hook.
Further, the vertical rods comprise a first vertical rod and a second vertical rod; the bottom end of the first vertical rod is detachably connected with the top end of the sample tube, and the top end of the first vertical rod is detachably connected with the bottom end of the second vertical rod; the top end of the second vertical rod is detachably connected with the cross rod.
Compared with the prior art, the utility model discloses following beneficial effect has:
the soil sampler is aligned and placed at the detection position of the roadbed, the support ring slides down to the top end of the sample cylinder, a worker holds the cross rod by one hand to prevent the soil sampler from deviating, the other hand rotates the roller to enable the loading block to rise to a certain height, the roller is suddenly loosened to enable the loading block to fall freely, applying impact force to the support ring, cutting soil under the action of the impact force by the foot shoe and the sample cylinder, entering soil easily due to the fact that the bottom end of the foot shoe is a sharp edge end, stopping loading after the sample cylinder reaches a certain depth, holding the cross rod by two hands for shaking for a few times, taking out the sample cylinder filled with the soil sample, unloading the sample cylinder, leveling the residual soil at the upper end and the lower end of the sample cylinder, weighing the total mass of the soil sample and the sample cylinder, subtracting the mass of the sample cylinder to obtain the mass of the soil sample, or directly weighing the soil sample, and dividing by the volume of the sample cylinder to obtain the wet density of the roadbed. Because the loading block is a free falling body, the impact force can be ensured to be vertical and downward, and the soil sample can be taken out along the vertical direction, thereby improving the sampling accuracy. The soil sampler for measuring the compaction degree of the fine-grained soil subgrade is novel simple equipment, is simple to manufacture, consumes less materials, can realize rapid collection of a fine-grained soil subgrade soil sample, is convenient and rapid, saves labor and time, and can rapidly detect the density of the fine-grained soil subgrade, so that the device has high cost performance and wide popularization value.
Drawings
Fig. 1 is a schematic structural diagram of the soil sampler for high-determination fine-grained soil subgrade compactness provided by the utility model;
fig. 2 is a cross-sectional view of the foot boot of the geotome of fig. 1.
In the figure: 1-a sample cartridge; 2-a foot boot; 3-a support ring; 4-loading the block; 5-a roller; 6-a cross bar; 7-a first vertical bar; 8-a second vertical bar; 9-roller mounting block.
Detailed Description
The utility model provides a soil sampler for measuring compaction degree of fine grained soil roadbed, which comprises a sample cylinder 1, a foot shoe 2, a support frame, a support ring 3, a loading block 4 and a roller 5; the foot shoe 2 is an annular structure matched with the section size of the sample cylinder 1, the top end of the foot shoe is supported at the bottom end of the sample cylinder 1, and the bottom end of the foot shoe is a blade end; the support frame comprises two vertical rods symmetrically arranged at the top end of the sample cylinder 1 and a cross rod 6 connected with the top ends of the two vertical rods; the support ring 3 is an annular structure matched with the section size of the sample cylinder 1 and is arranged on the two vertical rods in a sliding and penetrating mode; the loading block 4 is slidably arranged on the two vertical rods in a penetrating way and is positioned above the support ring 3; the cylinder 5 is located the top of loading piece 4, and the center pin rotates and installs on two montants, and the barrel is fixed on the center pin, and the winding has connection rope 6 on the barrel, connects rope 6 and is connected with loading piece 4.
The soil sampler is aligned and placed on a detection position of a roadbed, a support ring 3 slides on the top end of a sample cylinder 1, a worker holds a cross rod 6 by one hand to prevent the soil sampler from deviating, rotates a roller 5 by the other hand to enable a loading block 4 to rise to a certain height, releases the roller 5 suddenly to enable the loading block 4 to fall freely, applies impact force to the support ring 3, cuts soil under the action of the impact force by a foot shoe 2 and the sample cylinder 1, is easy to insert soil due to the fact that the bottom end of the foot shoe 2 is a sharp blade end, stops loading after the sample cylinder 1 reaches a certain depth, holds the cross rod 6 by two hands to shake for a few times, takes out the sample cylinder 1 with the soil sample, unloads the sample cylinder 1, levels the residual soil at the upper end and the lower end of the sample cylinder 1, weighs the total mass of the soil sample and the sample cylinder 1, subtracts the mass of the sample cylinder 1 to obtain the soil sample mass, or directly drops the soil sample and weighs the soil sample, the wet density of the roadbed can be obtained.
Further, be provided with cylinder installation piece 9 on the montant, the both ends of center pin are worn to establish in cylinder installation piece 9, realize that the center pin is connected with the rotation of two montants.
Further, one end of the central shaft is connected with a Z-shaped handle through the drum mounting block 9 to facilitate rotation of the drum 5.
Further, the height of the sample cylinder 1 is the same as the compacted thickness of the roadbed to be detected, so that the taken soil sample can represent the density of the whole soil foundation layer and is representative.
Further, a hanging ring is arranged on the loading block 4, and a hook is arranged at the end part of the connecting rope 6 so as to facilitate connection.
Further, the vertical bars comprise a first vertical bar 7 and a second vertical bar 8; the bottom end of the first vertical rod 7 is detachably connected with the top end of the sample tube 1, and the top end of the first vertical rod is detachably connected with the bottom end of the second vertical rod 8; the top end of the second vertical rod 8 is detachably connected with the cross rod 6. The detachable connection generally adopts threaded connection or splicing so as to be convenient for assembly and disassembly, and can be detached and stored when not in use.
The soil sampler is mainly made of stainless steel materials, and the specific size is as follows:
1. the inner diameter of the sample cylinder 2de is 15cm, the wall thickness is 1cm, and the height is consistent with the compacted thickness of the roadbed;
2. the inner diameter of the foot boot 2 is 15cm, the upper end is 1cm thick, the lower end is pointed, and the height is 3 cm;
3. support ring 3: the inner diameter is 15cm, the thickness is 1cm, and the height is 1 cm;
4. the length of the loading block 4 is 20cm, the width and the height of the loading block are both 5cm, the diameter of the semicircular hoisting ring is 5mm, the diameter of the ring is 4cm, the diameter of the round hole is 1.5cm, and the height of the loading block is 5 cm;
5. the diameter of the cylinder body of the roller 5 is 5cm, the length of the cylinder body is 14cm, the length of the transverse rod of the Z-shaped handle is 5cm, the vertical rod degree is 2cm, and the diameter of the transverse rod is 1 cm;
6. the diameter of the cross rod 6 is 2cm, and the length of the cross rod is 60 cm;
7. the diameter of the first vertical rod 7 is 1cm, the height of the first vertical rod is 50cm, the diameter of the second vertical rod 8 is 1cm, the height of the second vertical rod is 20cm, and the length of the roller mounting block 9 is 4cm, the width of the roller mounting block is 1cm, and the height of the roller mounting block is 2 cm.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the present invention, or directly or indirectly applied to other related technical fields, and all included in the same way in the protection scope of the present invention.
Claims (6)
1. The soil sampler for measuring the compaction degree of the fine-grained soil roadbed is characterized by comprising a sample cylinder, a foot shoe, a support frame, a support ring, a loading block and a roller;
the foot shoe is of an annular structure matched with the section size of the sample cylinder, the top end of the foot shoe is supported at the bottom end of the sample cylinder, and the bottom end of the foot shoe is a blade end;
the support frame comprises two vertical rods symmetrically arranged at the top end of the sample cylinder and a cross rod connected with the top ends of the two vertical rods;
the support ring is of an annular structure matched with the section size of the sample cylinder and is arranged on the two vertical rods in a sliding and penetrating mode;
the loading block is slidably arranged on the two vertical rods in a penetrating manner and is positioned above the support ring;
the cylinder is located the top of loading piece, and the center pin of cylinder rotates and installs on two montants, and the barrel of cylinder is fixed on the center pin, and the winding has the connection rope on the barrel, connects the rope and is connected with the loading piece.
2. The geotome of claim 1 wherein said vertical posts are provided with roller mounting blocks;
and two ends of the central shaft penetrate through the roller mounting block.
3. The geotome of claim 1 wherein a Z-handle is attached to one end of said central shaft through said roller mounting block.
4. The geotome of claim 1 wherein the sample cylinder has a height equal to the thickness of the subgrade to be compacted.
5. The geotome of claim 1 wherein the loading block has a lifting ring thereon;
the end part of the connecting rope is provided with a hook.
6. The geotome of claim 1 wherein said vertical posts comprise a first vertical post and a second vertical post;
the bottom end of the first vertical rod is detachably connected with the top end of the sample tube, and the top end of the first vertical rod is detachably connected with the bottom end of the second vertical rod;
the top end of the second vertical rod is detachably connected with the cross rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922036151.3U CN211113577U (en) | 2019-11-22 | 2019-11-22 | Soil sampler for measuring compaction degree of fine-grained soil roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922036151.3U CN211113577U (en) | 2019-11-22 | 2019-11-22 | Soil sampler for measuring compaction degree of fine-grained soil roadbed |
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| CN211113577U true CN211113577U (en) | 2020-07-28 |
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| CN201922036151.3U Active CN211113577U (en) | 2019-11-22 | 2019-11-22 | Soil sampler for measuring compaction degree of fine-grained soil roadbed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695726A (en) * | 2020-12-09 | 2021-04-23 | 黑龙江龙捷市政轨道交通工程有限公司 | Fine-grained soil large-thickness roadbed compactness detection device and detection method |
-
2019
- 2019-11-22 CN CN201922036151.3U patent/CN211113577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695726A (en) * | 2020-12-09 | 2021-04-23 | 黑龙江龙捷市政轨道交通工程有限公司 | Fine-grained soil large-thickness roadbed compactness detection device and detection method |
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