CN210216373U - Protection fixing device for pressure box for rock-soil body pressure test - Google Patents
Protection fixing device for pressure box for rock-soil body pressure test Download PDFInfo
- Publication number
- CN210216373U CN210216373U CN201920790373.1U CN201920790373U CN210216373U CN 210216373 U CN210216373 U CN 210216373U CN 201920790373 U CN201920790373 U CN 201920790373U CN 210216373 U CN210216373 U CN 210216373U
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- circular steel
- cylinder barrel
- screw
- soil
- nut
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- 239000002689 soil Substances 0.000 title claims abstract description 73
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 69
- 239000010959 steel Substances 0.000 claims abstract description 69
- 238000003466 welding Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000011435 rock Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a protection fixing device for ground body pressure test pressure cell, including circular steel plunger, circular rubber pad, cylinder, T font rubber circle. The circular steel plunger is inserted into the cylinder barrel; the soil pressure box is clamped by an upper circular rubber pad and a lower circular rubber pad and is placed in the cylinder barrel; the T-shaped rubber ring is used for clamping the circular steel plunger and the cylinder barrel, so that the circular steel plunger and the cylinder barrel have mutual moving spaces under the action of pressure and are prevented from being invaded into the interior by foreign objects; the screw passes through the circular steel plunger, the T-shaped rubber ring and the screw hole on the cylinder barrel, and the other end of the screw is fixed by a nut to connect the components together to form the device. The utility model has the advantages that: the installation operation is simple; the soil pressure cell is protected from being damaged by direct contact with soil or concrete when being buried; the problem that the measurement result is inaccurate when the soil pressure cell is contacted with an uneven soil body or tunnel surrounding rock is solved; when the tunnel surrounding rock pressure test is carried out, the soil pressure box is fixedly buried at any position of the annular direction of the tunnel.
Description
Technical Field
The utility model relates to a ground, tunnel engineering monitoring technology field, in particular to a protection fixing device for ground body pressure test pressure cell.
Background
The soil pressure cell is a device commonly used for testing the pressure of soil on site, is designed and manufactured by adopting the vibrating wire theory at present, has the advantages of high sensitivity, high precision, high stability and high testing speed, is suitable for long-term observation, and is frequently used for monitoring the soil pressure in projects such as tunnels, side slopes, foundation pits, dams and the like so as to obtain the pressure in the soil and the pressure of the soil acting on a contact object. The soil pressure cell has the soil pressure cell easy to be damaged when burying underground and fixing the soil pressure cell, and the measuring result is inaccurate, inconvenient fixed problem: during the pouring and vibrating process of concrete or when the concrete is sprayed to tunnel surrounding rocks, the concrete pressure box is easily damaged and cannot be protected; the burying of the soil pressure cell requires that a stress surface is in good contact with a soil body, but the soil body is often uneven, so that the soil pressure cell is difficult to be in close contact with the soil body, and the measuring result is inaccurate; in tunnel country rock pressure monitoring, fixing device need ensure that the earth pressure cell can install in tunnel hoop arbitrary position department, and current fixing device is difficult to satisfy the fixed requirement of earth pressure cell under the simple and easy, the quick prerequisite of burying underground of operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's defect, provide a protection fixing device for ground body pressure test pressure cell, can the effectual problem that exists of solving above-mentioned prior art.
In order to realize the purpose of the utility model, the utility model discloses the technical scheme who takes as follows:
a protection fixing device for a pressure box for testing the pressure of rock and soil mass comprises a circular steel plunger 6, a circular rubber pad A3, a soil pressure box 4, a circular rubber pad B5, a cylinder barrel 1, a T-shaped rubber ring 2, a screw 8 and a nut 18. The circular steel plunger 6 is inserted into the cylinder barrel 1; the soil pressure box 4 is clamped between a circular rubber pad A3 and a circular rubber pad B5 and is placed in the cylinder barrel 1;
the T-shaped rubber ring 2 is used for clamping the circular steel plunger 6 and the cylinder barrel 1, so that the circular steel plunger 6 and the cylinder barrel 1 are guaranteed to have a space for mutual movement under the action of pressure and are prevented from being invaded into the device by foreign objects, and the soil pressure box 4 is protected from being damaged.
The screw 8 passes through the circular steel plunger 6, the T-shaped rubber ring 2 and the screw hole 9 on the cylinder barrel 1, and the other end of the screw is fixed by a nut 18 to form the device.
Further, the circular steel plunger 6 is formed by welding a circular steel column 16, a circular steel plunger bottom plate 17 and a circular steel plunger surrounding shell 15.
The height of the circular steel column 16 is lower than that of the circular steel plunger surrounding shell 15, and the circular steel plunger surrounding shell 15 is used for preventing sundries such as soil bodies, concrete and the like from invading the interior and protecting the soil pressure box 4 from being damaged.
The circular steel plunger surrounding shell 15 and the circular steel plunger bottom plate 17 at the corresponding position thereof are reserved with three through screw holes 9 which are uniformly distributed along the circumferential direction and are used for connecting and fixing the device by using screws 8.
A square hole A12 is reserved at the position of the circular steel plunger surrounding shell 15 corresponding to the soil pressure cell 4, so that the connection of the soil pressure cell lead 7 and the soil pressure cell lead hole 11 from the outside after the device is assembled into a whole is ensured.
Further, the cylinder barrel 1 is formed by welding a cylinder barrel wall 14 and a cylinder barrel bottom plate 13.
The cylinder barrel bottom plate 13 is reserved with three evenly distributed screw holes 9 along the circumferential outer edge, and the depth of each screw hole 9 is three fifths of the thickness of the cylinder barrel bottom plate 13 and is used for connecting and fixing the device through screws 8.
A square hole B10 is reserved at the position, corresponding to the square hole A12 reserved in the cylinder barrel wall 14 and the circular steel column plug surrounding shell 15, and the size of the square hole B10 is 10mm multiplied by 5mm, so that the soil pressure box lead 7 is connected with the soil pressure box lead hole 11 from the outside after the devices are connected into a whole.
Preferably, the thickness of the circular rubber pad A3 and the circular rubber pad B5 is 5mm, so that the soil pressure cell 4 is uniformly stressed.
Preferably, the T-shaped rubber ring 2 has an outer ring dimension of height × thickness 10mm × 2mm and an inner ring dimension of height × thickness 5mm × 5 mm.
Preferably, the nut 18 is a hexagonal nut having an outer diameter slightly larger than the radius of the threaded hole 9 and an inner diameter equal to the radius of the screw 8, and is used together with the screw 8 to fix the whole device.
Preferably, nut holes 19 are reserved in positions of the cylinder barrel bottom plate 13 corresponding to the reserved three screw holes 9, through holes are formed between the nut holes 19 and the screw holes 9, the depth of each nut hole 19 is two fifths of that of the cylinder barrel bottom plate 13, the hole diameter is the same as the outer diameter of each nut 18, the nut 18 is placed and hidden, and the fact that the screw 8 and the nut 18 fix the whole device is guaranteed, and meanwhile, the outer portion of the cylinder barrel bottom plate 13 is flat and smooth.
Preferably, the tip of the screw 8 is threaded, the rest is smooth, the smooth part is the thickness of the device minus the thickness of the nut 18, and the diameter of the screw 8 is slightly smaller than that of the screw hole 9. Mainly in order to ensure that the circular steel plunger 6 and the cylinder 1 can still move relative to each other along the smooth screw (8) under the action of pressure after the whole device is fixed.
Preferably, the total height of the circular steel plunger 6 is consistent with that of the cylinder barrel 1, and the T-shaped rubber ring 2 is clamped between the circular steel plunger 6 and the cylinder barrel 1, so that a space for mutual movement is formed under the action of pressure.
Compared with the prior art, the utility model has the advantages of: the soil pressure box is simple to install and operate, can be protected from being damaged when buried in a soil body, and can be fixed at a preset position, and most importantly, the soil pressure box can be uniformly stressed, and the accuracy of a monitoring result is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall disassembled structure of the present invention;
FIG. 2 is a schematic structural view of the present invention after being integrally assembled;
FIG. 3 is a schematic view of the structure of the utility model taken apart after partially disassembled;
FIG. 4 is a schematic structural view of the present invention assembled after cutting part;
FIG. 5 is a schematic view of a disassembled structure of a circular steel plunger;
FIG. 6 is a schematic view of a circular steel plunger cut-away and disassembled structure;
FIG. 7 is a schematic view of a disassembled structure of the cylinder barrel;
FIG. 8 is a schematic view of a cylinder cut-away and disassembled structure;
FIG. 9 is a schematic structural view of a T-shaped rubber ring;
FIG. 10 is a structural diagram of a T-shaped rubber ring cut;
FIG. 11 is a schematic structural view of a circular rubber pad;
FIG. 12 is a schematic structural view of a circular rubber pad;
FIG. 13 is a schematic view of the structure of the soil pressure cell with its wires separated;
fig. 14 is a schematic structural view of the soil pressure cell after connection with a lead.
The attached drawings are as follows: the soil pressure box comprises a 1-cylinder barrel, a 2-T-shaped rubber ring, a 3-circular rubber ring A, a 4-soil pressure box, a 5-circular rubber ring B, a 6-circular steel plunger, a 7-soil pressure box lead, 8-screws, 9-screw holes, 10-square holes, 11-soil pressure box lead holes, 12-square holes, 13-cylinder barrel bottom plates, 14-cylinder barrel walls, 15-circular steel plunger surrounding shells, 16-circular steel columns, 17-circular steel plunger bottom plates, 18-nuts and 19-nut holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail by the following embodiments.
As shown in fig. 1 to 4, the protective fixing device for the pressure cell for testing the pressure of the rock-soil mass comprises a circular steel plunger 6, a circular rubber pad A3, a soil pressure cell 4, a circular rubber pad B5, a cylinder barrel 1, a T-shaped rubber ring 2, a screw 8 and a nut 18. The circular steel plunger 6 is inserted into the cylinder barrel 1; the soil pressure box 4 is clamped between a circular rubber pad A3 and a circular rubber pad B5 and is placed in the cylinder barrel 1;
the T-shaped rubber ring 2 is used for clamping the circular steel plunger 6 and the cylinder barrel 1, so that the circular steel plunger 6 and the cylinder barrel 1 are guaranteed to have a space for mutual movement under the action of pressure and are prevented from being invaded into the device by foreign objects, and the soil pressure box 4 is protected from being damaged.
The screw 8 passes through the circular steel plunger 6, the T-shaped rubber ring 2 and the screw hole 9 on the cylinder barrel 1, and the other end of the screw is fixed by a nut 18 to form the device.
As shown in fig. 5 and 6, the circular steel plunger 6 is formed by welding a circular steel column 16, a circular steel plunger bottom plate 17 and a circular steel plunger surrounding shell 15.
The height of the circular steel column 16 is lower than that of the circular steel plunger surrounding shell 15, and the circular steel plunger surrounding shell 15 is mainly used for preventing sundries such as soil bodies, concrete and the like from invading the interior and protecting the soil pressure box 4 from being damaged.
The circular steel plunger surrounding shell 15 and the circular steel plunger bottom plate 17 at the corresponding position thereof are reserved with three through screw holes 9 which are uniformly distributed along the circumferential direction and are used for connecting and fixing the device by using screws 8.
A square hole A12 is reserved at the position, corresponding to the soil pressure cell 4, of the circular steel plunger surrounding shell 15, the size of the square hole is 10mm multiplied by 5mm, and the connection of the soil pressure cell lead 7 and the soil pressure cell lead hole 11 from the outside after the device is connected into a whole is guaranteed.
As shown in fig. 7 and 8, the cylinder tube 1 is further formed by welding a cylinder tube wall 14 and a cylinder tube bottom plate 13.
The cylinder barrel bottom plate 13 is reserved with three evenly distributed screw holes 9 along the circumferential outer edge, and the depth of each screw hole 9 is three fifths of the thickness of the cylinder barrel bottom plate 13 and is used for connecting and fixing the device through screws 8.
A square hole B10 is reserved at the position, corresponding to the square hole A12 reserved in the circular steel column plug surrounding shell 15, of the cylinder barrel wall 14, and the size of the square hole B is 10mm multiplied by 5mm, so that the soil pressure box lead 7 is connected with the soil pressure box lead hole 11 from the outside after the devices are connected into a whole, as shown in figures 13 and 14.
The thicknesses of the circular rubber pad A3 and the circular rubber pad B5 are 5mm, so that the soil pressure cell 4 is uniformly stressed.
As shown in fig. 9 and 10, the T-shaped rubber ring 2 has an outer ring dimension of 10mm × 2mm in height and an inner ring dimension of 5mm × 5mm in height.
The nut 18 is a hexagon nut, the outer diameter of the nut is slightly larger than the radius of the screw hole 9, the inner diameter of the nut is the same as the radius of the screw 8, and the nut and the screw 8 are used for fixing the whole device.
The tip part of the screw 8 is threaded, the rest part is smooth, the smooth part is the thickness of the device minus the thickness of the nut 18, and the diameter of the screw 8 is slightly smaller than that of the screw hole 9. Mainly in order to ensure that the circular steel plunger 6 and the cylinder 1 can still move relative to each other along the smooth screw (8) under the action of pressure after the whole device is fixed.
The total height of the circular steel plunger 6 is consistent with that of the cylinder barrel 1, and the T-shaped rubber ring 2 is clamped between the circular steel plunger 6 and the cylinder barrel 1, so that a space for mutual movement is formed under the action of pressure.
When pressure acts on the cylinder barrel 1, the cylinder barrel 1 is pushed, the circular steel plunger 6 is forced to press the soil pressure box 4, at the moment, the pressure is transmitted to the soil pressure box 4, and the pressure reading can be read through the reading meter of the soil pressure box 4.
It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner of practicing the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (9)
1. The utility model provides a protection fixing device for ground body pressure test pressure cell which characterized in that: comprises a circular steel plunger (6), a circular rubber pad A (3), a soil pressure box (4), a circular rubber pad B (5), a cylinder barrel (1), a T-shaped rubber ring (2), a screw (8) and a nut (18); the circular steel plunger (6) is inserted into the cylinder barrel (1); the soil pressure box (4) is clamped between a circular rubber pad A (3) and a circular rubber pad B (5) and is placed in the cylinder barrel (1);
the T-shaped rubber ring (2) is used for clamping the circular steel plunger (6) and the cylinder barrel (1), so that the circular steel plunger (6) and the cylinder barrel (1) have mutually moving spaces under the action of pressure and are prevented from being invaded into the device by foreign objects, and the soil pressure box (4) is protected from being damaged;
the screw (8) penetrates through the circular steel plunger (6), the T-shaped rubber ring (2) and the screw hole (9) in the cylinder barrel (1), and the other end of the screw is fixed by a nut (18) to form the device.
2. The protection fixing device for the pressure test pressure box of the rock-soil body according to claim 1, wherein: the circular steel plunger (6) is formed by welding a circular steel column (16), a circular steel plunger bottom plate (17) and a circular steel plunger surrounding shell (15);
the height of the circular steel column (16) is lower than that of the circular steel plunger surrounding shell (15), and the circular steel plunger surrounding shell (15) is used for preventing sundries such as soil bodies, concrete and the like from entering the interior and protecting the soil pressure box (4) from being damaged;
the circular steel plunger surrounding shell (15) and the circular steel plunger bottom plate (17) at the corresponding position thereof are reserved with three through screw holes (9) which are uniformly distributed along the circumferential direction and are used for connecting and fixing the device by screws (8);
a square hole A (12) is reserved at the corresponding position of the circular steel column plug surrounding shell (15) and the soil pressure cell (4), and the connection of a soil pressure cell wire (7) and a soil pressure cell wire hole (11) from the outside after the device is connected into a whole is ensured.
3. The protection fixing device for the pressure test pressure box of the rock-soil body according to claim 2, wherein: the cylinder barrel (1) is formed by welding a cylinder barrel wall (14) and a cylinder barrel bottom plate (13);
three evenly distributed screw holes (9) are reserved in the cylinder barrel bottom plate (13) along the circumferential outer edge, and the depth of each screw hole (9) is three fifths of the thickness of the cylinder barrel bottom plate (13) and is used for connecting and fixing the device through a screw (8);
a square hole B (10) is reserved at a position corresponding to a square hole A (12) reserved in the cylinder barrel wall (14) and the circular steel column plug surrounding shell (15), and the size of the square hole B is 10mm multiplied by 5mm, so that the device is guaranteed to be connected into a whole, and then the soil pressure box lead (7) is connected with the soil pressure box lead hole (11) from the outside.
4. The protection fixing device for the pressure test pressure box of the rock-soil body according to claim 3, wherein: nut hole (19) are reserved with three screw (9) corresponding position department of reserving in cylinder bottom plate (13), form the hole that link up with screw (9), and the degree of depth of nut hole (19) is two fifths of cylinder bottom plate (13), and the aperture is the same with nut (18) external diameter for place and hide nut (18), when guaranteeing that screw (8) and nut (18) fix whole device, cylinder bottom plate (13) outside is leveled smoothly.
5. The protection fixing device for the pressure test pressure box of the rock-soil body according to claim 4, wherein: the tip part of the screw (8) is threaded, the rest part is smooth, the thickness of the nut (18) is subtracted from the thickness of the device at the smooth part, and the diameter of the screw (8) is slightly smaller than that of the screw hole (9); mainly in order to ensure that the circular steel plunger (6) and the cylinder barrel (1) can still move mutually along the smooth screw (8) under the action of pressure after the whole device is fixed.
6. The protection fixing device for the pressure test pressure box of the rock-soil body according to claim 5, wherein: the total height of the circular steel plunger (6) is consistent with that of the cylinder barrel (1), and the T-shaped rubber ring (2) is clamped between the circular steel plunger (6) and the cylinder barrel (1), so that a space for mutual movement is formed under the action of pressure.
7. The protective fixture for the pressure test pressure box of the geotechnical body according to any one of claims 1 to 6, wherein: the thicknesses of the circular rubber pad A (3) and the circular rubber pad B (5) are 5mm, and the soil pressure box (4) is guaranteed to be evenly stressed.
8. The protective fixture for the pressure test pressure box of the geotechnical body according to any one of claims 1 to 6, wherein: the outer ring of the T-shaped rubber ring (2) is 10mm multiplied by 2mm in height multiplied by thickness, and the inner ring is 5mm multiplied by 5mm in height multiplied by thickness.
9. The protective fixture for the pressure test pressure box of the geotechnical body according to any one of claims 1 to 6, wherein: the nut (18) is a hexagon nut, the outer diameter of the nut is slightly larger than the radius of the screw hole (9), the inner diameter of the nut is the same as the radius of the screw (8), and the nut and the screw (8) are used for fixing the whole device together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790373.1U CN210216373U (en) | 2019-05-29 | 2019-05-29 | Protection fixing device for pressure box for rock-soil body pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790373.1U CN210216373U (en) | 2019-05-29 | 2019-05-29 | Protection fixing device for pressure box for rock-soil body pressure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210216373U true CN210216373U (en) | 2020-03-31 |
Family
ID=69928742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920790373.1U Withdrawn - After Issue CN210216373U (en) | 2019-05-29 | 2019-05-29 | Protection fixing device for pressure box for rock-soil body pressure test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210216373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016904A (en) * | 2019-05-29 | 2019-07-16 | 成都理工大学 | A kind of fixed device of protection for Rock And Soil pressure test pressure cell |
-
2019
- 2019-05-29 CN CN201920790373.1U patent/CN210216373U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016904A (en) * | 2019-05-29 | 2019-07-16 | 成都理工大学 | A kind of fixed device of protection for Rock And Soil pressure test pressure cell |
| CN110016904B (en) * | 2019-05-29 | 2023-11-28 | 成都理工大学 | Protection fixing device for rock-soil body pressure test pressure box |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20231128 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20231128 |