CN216049615U - Water-swelling rock-soil cylinder perimeter creep measurement device - Google Patents
Water-swelling rock-soil cylinder perimeter creep measurement device Download PDFInfo
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- CN216049615U CN216049615U CN202122340210.3U CN202122340210U CN216049615U CN 216049615 U CN216049615 U CN 216049615U CN 202122340210 U CN202122340210 U CN 202122340210U CN 216049615 U CN216049615 U CN 216049615U
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Abstract
The utility model relates to the technical field of rock mass test measuring devices, in particular to a water-swelling rock-soil cylinder perimeter creep measuring device, which comprises a water storage tank, a stress detection device and a circumference measuring scale, wherein a rock-soil sample is placed in the water storage tank; the sensing end of the stress detection device vertically acts on the surface of the rock-soil sample, and the stress detection device is used for restraining vertical deformation of the rock-soil sample and detecting a pressure value of the rock-soil sample; the circumference dipperstick sets up in the outside of ground style, the circumference dipperstick is used for measuring the girth value of ground style, and this device simple structure has solved current creep measuring device, does not have vertical restraint among the rock column body test process, and horizontal expansion is difficult to ensure even creep, is difficult to through test creep expansive force, the perimeter change's after the accurate measurement rock column body inflation problem.
Description
Technical Field
The utility model relates to the technical field of rock mass test measuring devices, in particular to a perimeter creep measuring device for a water-swelling rock-soil cylinder.
Background
The hydration of the expansive rock mass is a physical and chemical process, anisotropy exists due to the structure of the rock mass, perimeter creep is a comprehensive deformation reaction index of the expansive rock mass, the prior test on the perimeter creep of the expansive rock mass in water mainly adopts a dial indicator to test the transverse deformation of a cylinder, and a related theoretical formula is adopted to convert to obtain the perimeter deformation.
To sum up, need for a meet water inflation ground cylinder girth creep measuring device at present urgently, can be to the vertical restraint of inflation rock standard cylinder, under the environment through horizontal free meeting water inflation, realize through testing creep expansive force, the girth change after the accurate measurement rock cylinder inflation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: to current creep measurement device, there is not vertical restraint among the rock cylinder test process, and horizontal inflation is difficult to ensure even creep, is difficult to through test creep expansive force, the perimeter change's after the accurate measurement rock cylinder inflation problem provides a meet water inflation ground cylinder perimeter creep measurement device.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a perimeter creep measurement device for a water-swelling rock-soil cylinder comprises a water storage tank, a stress detection device and a circumference measurement scale, wherein the water storage tank is used for placing rock-soil samples; the sensing end of the stress detection device vertically acts on the top surface of the rock-soil style, and the stress detection device is used for restraining the vertical deformation of the rock-soil style and detecting the pressure value of the rock-soil style; the circumference dipperstick sets up in the outside of ground style, the circumference dipperstick is used for measuring the girth value of ground style.
The circumference measuring scale is arranged on the outer side of the rock-soil sample, the circumference of the rock-soil sample before expansion is tested, the rock-soil sample is immersed in the water storage tank, the sensing end of the stress detection device vertically acts on the surface of the rock-soil sample to limit the vertical deformation of the rock-soil sample, meanwhile, the stress detection device can also measure the vertical expansion force of the rock-soil sample, the expansion acting force continuously increases along with the expansion until the expansion force detected by the stress detection device stops increasing, the expansion of the rock-soil sample stops, the circumference of the expanded rock-soil sample is measured by the circumference measuring scale arranged on the outer side of the rock-soil sample, so that the circumference change value of the expansion of the rock-soil sample is accurately obtained, the device has a simple structure, the problems that the existing creep deformation measuring device has no vertical restraint in the rock column test process, the uniform creep deformation is difficult to ensure due to the transverse expansion, and the creep deformation expansion force is difficult to be tested, accurately measuring the circumference change of the expanded rock cylinder.
Preferably, the stress detection device further comprises a base and a bracket body arranged on the base, the water storage tank is placed at the upper end of the base, and the stress detection device is arranged on the bracket body.
Preferably, a box body is further arranged between the water storage tank and the base.
Preferably, the stress detection device comprises a distance adjusting rod, a gasket and a stress digital display device, the gasket is arranged at the lower end of the distance adjusting rod, a stress sensor is arranged between the distance adjusting rod and the gasket, the stress sensor is electrically connected with the stress digital display device, and the distance adjusting rod is in threaded connection with the support body. The adjustable distance rod rotates along the support body, the adjustable distance rod vertically moves, the gasket is in contact with the top of the rock-soil style, so that the effect of vertical constraint expansion of the rock-soil style is achieved, the stress sensor is arranged between the adjustable distance rod and the gasket, the expansion force of the rock-soil style acts on the gasket, then acts on the stress sensor through the gasket, the stress sensor is converted and transmitted to the stress digital display device, and therefore the change of the expansion force value can be observed visually.
Preferably, the box body is a transparent structural member, and the stress digital display device is placed in the box body.
Preferably, the circumference dipperstick includes the chi head, the one end of chi head is equipped with the chi area, the surface of chi head is equipped with the space frame, is equipped with the slant preforming on the space frame, the free end of chi area can pass the space frame, the tip of slant preforming can with the surface butt of chi area.
Preferably, the outer surfaces of the tape and the tape head are provided with scales, and the scales on the tape can be opposite to the scales on the tape head.
Preferably, permeable stones are arranged between the top end of the rock-soil pattern and the gasket and between the bottom end of the rock-soil pattern and the bottom wall of the water storage tank. Through setting up the permeable stone, make each position homoenergetic of ground style evenly contact with water.
Preferably, the bottom of the water storage tank is provided with a water injection pipe. The operation of injecting water into the water tank is convenient.
Compared with the prior art, the utility model has the advantages that: the utility model relates to a perimeter creep measurement device for a water-swelling rock-soil cylinder, wherein a circumference measuring scale is arranged on the outer side of a rock-soil sample to test the perimeter of the rock-soil sample before swelling, the rock-soil sample is immersed in a water storage tank, a sensing end of a stress detection device vertically acts on the surface of the rock-soil sample to limit the vertical deformation of the rock-soil sample, meanwhile, the stress detection device can also measure the vertical expansion force of the rock-soil sample, the expansion acting force continuously increases along with the progress of swelling until the expansion force detected by the stress detection device stops increasing, the expansion of the rock-soil sample stops, and the perimeter after the swelling of the rock-soil sample is measured by the circumference measuring scale arranged on the outer side of the rock-soil sample, so that the perimeter change value of the swelling of the rock-soil sample is accurately obtained. The transverse expansion is difficult to ensure uniform creep, and the circumferential change of the expanded rock cylinder is difficult to accurately measure through testing creep expansion force.
The beneficial effects of other embodiments of the application are as follows:
1. the adjustable distance rod rotates along the support body, the adjustable distance rod vertically moves, the gasket is in contact with the top of the rock-soil style, so that the effect of vertical constraint expansion of the rock-soil style is achieved, the stress sensor is arranged between the adjustable distance rod and the gasket, the expansion force of the rock-soil style acts on the gasket, then acts on the stress sensor through the gasket, the stress sensor is converted and transmitted to the stress digital display device, and therefore the change of the expansion force value can be observed visually.
Drawings
FIG. 1 is a schematic structural diagram of a perimeter creep measurement device for a water-swellable rock-soil cylinder.
Fig. 2 is a schematic view of a circumferential measuring scale for measuring geotechnical patterns.
Reference numerals
The device comprises a water storage tank 1, a water injection pipe 1a, a rock-soil model 2, a stress detection device 3, a distance adjusting rod 3a, a gasket 3b, a stress sensor 3c, a stress digital display device 3d, a circumference measuring scale 4, a scale head 4a, a scale belt 4b, a gap frame 4c, a slant press sheet 4d, a base 5, a support 6, a box 7 and a permeable stone 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1 and fig. 2, the perimeter creep measurement device for the water-swellable rock-soil cylinder comprises a water storage tank 1, a stress detection device 3 and a circumference measuring scale 4, and further comprises a base 5 and a support body 6 arranged on the base 5, wherein the circumference measuring scale 6 is arranged on the outer side of the rock-soil style 2, the circumference of the rock-soil style 2 before swelling is tested, the rock-soil style 2 is immersed in the water storage tank 1, the water storage tank 1 is arranged at the upper end of the base 4, the stress detection device 3 is arranged on the support body 6, the sensing end of the stress detection device 3 vertically acts on the surface of the rock-soil style 2, the vertical deformation of the rock-soil style 2 can be limited, meanwhile, the stress detection device 3 can also measure the vertical expansive force of the rock-soil style 2, the swelling acting force is continuously increased along with the progress of swelling until the expansive force detected by the stress detection device 3 stops increasing, rock soil style 2 stops the inflation, the circumference after rock soil style 2 inflation is measured to the circumference dipperstick 4 that the rethread set up in the outside of rock soil style 2, thereby the accurate circumference change value that reachs rock soil style 2 inflation, this device simple structure, suitable interval time of every, record circumference dipperstick and stress variation value, the reading variation range of dipperstick is within 0.02mm, the end test, current creep measurement device has been solved, there is not vertical restraint among the rock pillar body process of test, horizontal expansion is difficult to ensure even creep, be difficult to pass through test creep expansive force, the problem of the circumference change after the accurate measurement rock pillar body inflation.
The stress detection device 3 comprises a distance adjusting rod 3a, a gasket 3b and a stress digital display device 3d, the gasket 3b is arranged at the lower end of the distance adjusting rod 3a, a stress sensor 3c is arranged between the distance adjusting rod 3a and the gasket 3b, the stress sensor 3c is electrically connected with the stress digital display device 3d, the distance adjusting rod 3a is in threaded connection with the support body 6, the distance adjusting rod 3a is rotated along the support body 6 to enable the distance adjusting rod 3a to vertically move, the gasket 3b is contacted with the top of the rock-soil pattern 2, so that the vertical constraint expansion effect of the rock-soil pattern 2 is achieved, the stress sensor 3c is arranged between the distance adjusting rod 3a and the gasket 3b, the expansion force of the rock-soil pattern 2 acts on the gasket 3b, then acts on the stress sensor 3c through the gasket 3b, and the stress sensor 3c converts the pressure into a sensing signal and transmits the sensing signal to the stress digital display device 3d, tank 7 is still equipped with between tank 1 and the base 5, and tank 7 is the transparent material structure, stress digital display device 3d place in the tank 7 to the change of the inflation force of can audio-visually observing.
The circumference measuring scale 4 comprises a scale head 4a, one end of the scale head 4a is provided with a scale belt 4b, the outer surface of the scale head 4a is provided with a gap frame 4c, the gap frame 4c is provided with an oblique pressing sheet 4d, the free end of the scale belt 4b can penetrate through the gap frame 4c, the end part of the oblique pressing sheet 4d can be abutted against the outer surface of the scale belt 4b, the rock and soil pattern 2 expands to drive the scale belt 4b to move along the gap frame 4c, the oblique pressing sheet 4d is abutted against the scale belt 4b, the scale belt 4b is attached to the surface of the rock and soil pattern 2, so that the measuring accuracy is improved, the outer surfaces of the scale belt 4b and the scale head 4a are provided with scales, the scales on the scale belt 4b can be opposite to the scales on the scale head 4a, and the scales at different positions on the scale belt 4b are opposite to the scales on the scale head 4a, and calculating the expansion perimeter difference of the rock and soil sample 2 according to the scale difference between the expanded sample and the expanded sample.
The top of ground style 2 with between the gasket 3b and ground style 2's bottom with all be equipped with permeable stone 8 between the diapire of tank 1, through setting up permeable stone 8, make 2 kinds of positions homoenergetic of ground style evenly contact with water, the bottom of tank 1 is equipped with water injection pipe 1a, makes things convenient for the interior water injection operation of tank 1.
The above embodiments are only used for illustrating the utility model and not for limiting the technical solutions described in the utility model, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; therefore, it is intended to cover all modifications and variations of this invention provided they come within the scope of the appended claims.
Claims (9)
1. The utility model provides a meet water inflation ground cylinder girth creep measurement device, includes tank (1), tank (1) is used for placing ground style (2), its characterized in that: the stress measuring device also comprises a stress detecting device (3) and a circumference measuring scale (4); the sensing end of the stress detection device (3) vertically acts on the top surface of the rock-soil style (2), and the stress detection device (3) is used for restraining the vertical deformation of the rock-soil style (2) and detecting the pressure value of the rock-soil style (2); the circumference dipperstick (4) sets up in the outside of ground style (2), circumference dipperstick (4) are used for measuring the perimeter value of ground style (2).
2. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 1, characterized in that: the water storage tank is characterized by further comprising a base (5) and a support body (6) arranged on the base (5), the water storage tank (1) is placed at the upper end of the base (5), and the stress detection device (3) is installed on the support body (6).
3. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 2, characterized in that: a box body (7) is also arranged between the water storage tank (1) and the base (5).
4. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 3, characterized in that: stress detection device (3) are including roll adjustment pole (3a), gasket (3b) and stress digital display device (3d), gasket (3b) set up in the lower extreme of roll adjustment pole (3a), just roll adjustment pole (3a) with be equipped with stress sensor (3c) between gasket (3b), stress sensor (3c) with stress digital display device (3d) electricity is connected, roll adjustment pole (3a) with the support body (6) threaded connection.
5. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 4, characterized in that: permeable stones (8) are arranged between the top end of the rock-soil pattern (2) and the gasket (3b) and between the bottom end of the rock-soil pattern (2) and the bottom wall of the water storage tank (1).
6. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 4, characterized in that: the box body (7) is a transparent structural member, and the stress digital display device (3d) is placed in the box body (7).
7. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 1, characterized in that: the circumference dipperstick (4) includes chi head (4a), the one end of chi head (4a) is equipped with chi area (4b), the surface of chi head (4a) is equipped with space frame (4c), is equipped with slant preforming (4d) on space frame (4c), the free end of chi area (4b) can pass space frame (4c), the tip of slant preforming (4d) can with the surface butt of chi area (4 b).
8. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 7, characterized in that: the outer surfaces of the tape (4b) and the tape head (4a) are provided with scales, and the scales on the tape (4b) can be opposite to the scales on the tape head (4 a).
9. The water-swellable rock-soil cylinder perimeter creep measurement device according to claim 1, characterized in that: the bottom of the water storage tank (1) is provided with a water injection pipe (1 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340210.3U CN216049615U (en) | 2021-09-26 | 2021-09-26 | Water-swelling rock-soil cylinder perimeter creep measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340210.3U CN216049615U (en) | 2021-09-26 | 2021-09-26 | Water-swelling rock-soil cylinder perimeter creep measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN216049615U true CN216049615U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122340210.3U Active CN216049615U (en) | 2021-09-26 | 2021-09-26 | Water-swelling rock-soil cylinder perimeter creep measurement device |
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| Country | Link |
|---|---|
| CN (1) | CN216049615U (en) |
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2021
- 2021-09-26 CN CN202122340210.3U patent/CN216049615U/en active Active
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