CN210269371U - Testing arrangement of ground body shear strength under high temperature high pressure - Google Patents
Testing arrangement of ground body shear strength under high temperature high pressure Download PDFInfo
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- CN210269371U CN210269371U CN201920502530.4U CN201920502530U CN210269371U CN 210269371 U CN210269371 U CN 210269371U CN 201920502530 U CN201920502530 U CN 201920502530U CN 210269371 U CN210269371 U CN 210269371U
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Abstract
The embodiment of the utility model provides a testing arrangement of ground body shear strength under high temperature and high pressure, include: the device comprises a speed reducing motor, a speed regulator, an air compressor, a sealed cabin, a water bath cabin, a torque sensor, a cross plate, a heating copper pipe and a temperature sensor; the speed regulator is connected with a speed reducing motor and a power supply, the speed reducing motor is fixed on the sealed cabin, a main shaft of the speed reducing motor penetrates through a top cover of the sealed cabin and extends into the sealed cabin, the main shaft is connected with a cross plate, the cross plate is suspended in the sealed cabin, and the torque sensor is fixed on the main shaft; the air compressor is connected with the sealed cabin through a gas pipeline; a water bath bin is arranged outside the sealed cabin, and a heating copper pipe is arranged in the water bath bin; the temperature sensors are distributed in the sealed cabin and the water bath cabin. The embodiment of the utility model provides a can compensate the research limitation among the traditional shear test, realize the high-speed shear flow state of ground body under high temperature high pressure.
Description
Technical Field
The utility model relates to a geotechnical engineering surveys technical field, especially relates to a testing arrangement of geotechnical body shear strength under high temperature high pressure.
Background
For the shear strength indoor test of soil, the main test methods in soil mechanics at present include direct shear test, triaxial compression test, unconfined compression test and the like, and are generally limited to the conditions of low shear rate and small strain under quasi-static deformation. In the fields of geotechnical engineering and underground engineering, a shear flow state with large deformation under high-temperature and high-pressure environments exists, such as the flow of soil bodies in the processes of shield tunneling, rotary drilling rig construction and the like, and obviously, the existing geotechnical test instrument is difficult to provide large deformation characteristics and does not consider the influence of the high-temperature environment on the shear strength.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a testing arrangement of ground body shear strength under high temperature high pressure can compensate the research limitation among the traditional shear test, realizes the high-speed shear flow state of ground body under high temperature high pressure, overcomes prior art's defect.
In order to achieve the purpose, the utility model adopts the following technical scheme.
The utility model provides a following scheme:
a testing arrangement of rock and soil body shear strength under high temperature high pressure includes: the device comprises a speed reducing motor (1), a speed regulator (2), an air compressor (7), a sealed cabin (8), a water bath cabin (10), a torque sensor (13), a cross plate (14), a heating copper pipe (15) and a temperature sensor (16);
the speed regulator (2) is connected with the speed reducing motor (1) and a power supply, the speed reducing motor (1) is fixed on the sealed cabin (8), a main shaft of the speed reducing motor (1) penetrates through a top cover of the sealed cabin (8) and extends into the sealed cabin (8), the main shaft is connected with a cross plate (14), the cross plate (14) is suspended in the sealed cabin (8), and the torque sensor (13) is fixed on the main shaft;
the air compressor (7) is connected with the sealed cabin (8) through a gas pipeline;
a water bath bin (10) is arranged outside the sealed cabin (8), and a heating copper pipe (15) is arranged in the water bath bin (10);
the temperature sensors (16) are distributed in the sealed cabin (8) and the water bath cabin (10).
Preferably, an air inlet switch (6) and a pressure stabilizing valve (5) are further arranged between the air compressor (7) and the sealed cabin (8).
Preferably, a heat preservation clapboard (9) is arranged outside the water bath cabin (10).
Preferably, the sealed cabin comprises a cylinder body and an upper cover, and the cylinder body and the upper cover are connected through a flange.
Preferably, the upper cover is provided with a bolt hole, an air inlet hole, an exhaust hole, a wire guide hole and a pressure gauge (4) for fixing the speed reducing motor (1).
Preferably, the torque sensor (13) is connected to a torque detection system (11).
Preferably, the temperature sensor (16) is connected to a temperature acquisition system (12).
Preferably, a rubber gasket is clamped between the speed reducing motor (1) and the sealed cabin (8) for sealing
Preferably, the pressure regulating range of the pressure stabilizing valve (5) is 0-0.5 MPa.
Preferably, the controllable range of the environmental temperature in the sealed cabin (8) and the water bath cabin (10) is 20-80 ℃.
By the foregoing the technical scheme of the utility model provides a can see out, the embodiment of the utility model provides a testing arrangement of ground body shear strength under high temperature high pressure, the device accessible air compressor machine exerts certain pressure to the ground body, the temperature of steerable ground body simultaneously to through the moment of torsion of torque sensor record when cuting, the soil body of conversion does not drainage shear strength.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a device for testing shear strength of a rock-soil body under high temperature and high pressure provided by an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a testing arrangement structure section schematic diagram of ground body shear strength under high temperature and high pressure.
Reference numerals:
1, a speed reducing motor; 2, a speed regulator; 3, an air escape valve; 4, a pressure gauge; 5 a pressure stabilizing valve; 6, an air inlet switch; 7, an air compressor; 8, sealing the cabin; 9, insulating partition boards; 10, a water bath cabin; 11 a torque acquisition system; 12 a temperature acquisition system; 13 a torque sensor; 14 a cross plate; 15 heating the copper tube; 16 temperature sensor
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be given by way of example only with reference to the accompanying drawings, and the embodiments are not limited thereto.
The embodiment of the utility model provides a testing arrangement of ground body shear strength under high temperature and high pressure, as shown in fig. 1-2, include: the device comprises a speed reducing motor 1, a speed regulator 2, an air release valve 3, a pressure gauge 4, a pressure stabilizing valve 5, an air inlet opening 6, an air compressor 7, a sealed cabin 8, a heat insulation partition plate 9, a water bath 10, a torque acquisition system 11, a temperature acquisition system 12, a torque sensor 13, a cross plate 14, a heating copper pipe 15 and a temperature sensor 16.
The speed regulator 2 is connected with the speed reducing motor 1 and a power supply and is used for controlling the starting and the rotating speed of the motor. The sealed cabin 8 consists of a cylinder body and an upper cover which are connected through a flange. The upper cover of the sealed cabin 8 is provided with a bolt hole, an air inlet hole, an exhaust hole, a wire guide hole, a pressure gauge 4 and the like for fixing the motor, and the exhaust hole is fixedly provided with an air escape valve 3 for releasing pressure of the sealed cabin 8 after the test is completed. The speed reducing motor 1 is connected with the upper cover of the sealed cabin 8 through bolts, the speed reducing motor 1 is sealed through a rubber pad, the speed reducing motor is arranged outside the sealed cabin 8, and a motor spindle penetrates through the upper cover of the sealed cabin 8 and extends into the sealed cabin.
The outside of 8 barrels in sealed cabin is equipped with water bath storehouse 10, has arranged annular heating copper pipe 15 in the water bath storehouse 10, and water bath storehouse 10 is outer to be arranged heat preservation baffle 9, can effectively prevent that the heat from leaking, maintains the constant temperature environment. Temperature sensors 16 connected with the temperature acquisition system 12 are respectively arranged in the water bath cabin 10 and the sealed cabin 8. The water bath cabin 10 is filled with water as a heat transfer medium, the heating copper pipe 15 is arranged in the sealed cabin to serve as a heat source, the heating mode is water bath heating, the temperature sensors feed back the ambient temperatures in the sealed cabin 8 and the water bath cabin 10 in real time, and the controllable range of the ambient temperature is 20-80 ℃.
The air compressor 7 provides air pressure for the sealed cabin 8 to pressurize the rock mass body in the sealed cabin 8. The air compressor 7 is connected with the sealed cabin 8 through an air inlet pipe, one end of the air inlet pipe is connected with an air inlet hole of an upper cover of the sealed cabin 8, the tail end of the other end of the air inlet pipe is connected with the air compressor 7, an air inlet switch 6 and a pressure stabilizing valve 5 are arranged on an air inlet pipe section and used for controlling the pressure value in the sealed cabin 8, the pressure value is accurately controlled by the pressure stabilizing valve 5, and the pressure adjusting range is 0-0.5 MPa.
The torque sensor 13 is connected in the middle of a motor spindle in the sealed cabin 8, the tail end of the lower portion of the spindle is connected with a cross plate 14, a data acquisition line of the torque sensor 13 is led out of the sealed cabin through a wire hole in an upper cover of the sealed cabin 8 and is connected with the torque acquisition system 11, the torque sensor 13 records torque required in the process that the cross plate 14 shears the rock-soil body in real time, and the non-drainage shearing strength of the rock-soil body can be obtained through conversion according to the torque.
The embodiment of the utility model provides a testing arrangement of ground body shear strength under high temperature high pressure, its use is as follows:
firstly, disassembling bolts between an upper cover and a barrel of a sealed cabin 8, filling a test rock-soil body into the barrel of the sealed cabin 8, burying a temperature sensor 16 into the rock-soil body, then inserting the upper cover of the sealed cabin 8 connected with a torque sensor 13 and a cross plate 14 into the rock-soil body from top to bottom integrally, and fixing the connecting bolts to ensure complete sealing. And opening an air inlet switch 6, closing a pressure release valve 3, opening an air compressor 7 to enable compressed air to enter a sealed cabin 8, closing the air compressor 7 when the pressure reaches 0.3MPa, standing for 5min, checking whether the reading of a pressure gauge 4 is reduced, and if not, proving that the pressure maintaining capacity of the sealed cabin 8 is reliable. And opening the pressure release valve 3, and closing the pressure release valve 3 to perform the second step of test after the compressed air is discharged.
And secondly, starting a heating copper pipe 15, heating purified water in the water bath bin 10, observing the temperature of rock and soil mass in the water bath bin 10 and the sealed cabin 8 monitored by the temperature sensor 16 in real time through a display of the temperature acquisition system 12, and ensuring that the temperature is maintained within a set range.
And thirdly, closing the air inlet switch 6, setting the air pressure value of the pressure stabilizing valve 5, opening the air compressor 7 to generate pressure gas, opening the air inlet switch 6 to enable the pressure gas to enter the sealed cabin 8 after the air pressure value in the air compressor 7 reaches the set air pressure value of the pressure stabilizing valve 5, observing the air pressure value in the pressure gauge 4, and closing the air compressor 7 after the air pressure in the sealed cabin 8 reaches the set value and keeps constant.
And fourthly, starting the speed regulator 2 and setting the working rotating speed of the speed reducing motor 1 to enable the speed reducing motor 1 to drive the shaft lever and the cross plate 14 to start rotating, observing and recording the torque of the shaft lever monitored by the torque sensor 13 in real time through a display of the torque acquisition system 11, and converting the shearing strength of the rock-soil body through a torque value.
It will be understood by those skilled in the art that the application of the above-described water bath heating structure is merely exemplary, and that other existing or future heating structures, such as may be suitable for use in embodiments of the present invention, are also intended to be encompassed within the scope of the present invention and are hereby incorporated by reference.
To sum up, the embodiment of the utility model provides a pair of testing arrangement of ground body shear strength under high temperature high pressure, the operability is good, and the pressurization mode is simple reliable, can apply gas pressure to the soil body through surge damping valve accurate control air compressor machine as required. The torque sensor is adopted to measure and record the shearing torque, so that the precision is high and the accuracy is good. The rotating speed of the motor is adjustable, the rotating speed of the rotating shaft can be obtained at 0-20 r/min according to needs, the rotating speed is controlled accurately, and the shearing strength of the rock and soil mass in a large deformation state can be tested. And a water bath heating method is adopted, the operability is strong, and the method can be used for researching the shearing behavior of the rock-soil body at the temperature of 20-80 ℃.
Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a testing arrangement of rock and soil body shear strength under high temperature high pressure which characterized in that includes: the device comprises a speed reducing motor (1), a speed regulator (2), an air compressor (7), a sealed cabin (8), a water bath cabin (10), a torque sensor (13), a cross plate (14), a heating copper pipe (15) and a temperature sensor (16);
the speed regulator (2) is connected with the speed reducing motor (1) and a power supply, the speed reducing motor (1) is fixed on the sealed cabin (8), a main shaft of the speed reducing motor (1) penetrates through a top cover of the sealed cabin (8) and extends into the sealed cabin (8), the main shaft is connected with a cross plate (14), the cross plate (14) is suspended in the sealed cabin (8), and the torque sensor (13) is fixed on the main shaft;
the air compressor (7) is connected with the sealed cabin (8) through a gas pipeline;
a water bath bin (10) is arranged outside the sealed cabin (8), and a heating copper pipe (15) is arranged in the water bath bin (10);
the temperature sensors (16) are distributed in the sealed cabin (8) and the water bath cabin (10).
2. The device according to claim 1, characterized in that an air inlet switch (6) and a pressure maintaining valve (5) are arranged between the air compressor (7) and the sealed cabin (8).
3. The device according to claim 1 or 2, characterized in that a heat-insulating partition plate (9) is arranged outside the water bath cabin (10).
4. The apparatus of claim 1, wherein the capsule comprises a barrel and a lid, the barrel and lid being flanged.
5. The device according to claim 4, characterized in that the upper cover is provided with bolt holes, air inlet holes, air outlet holes, wire guide holes and pressure gauge (4) for fixing the gear motor (1).
6. The device according to claim 1, characterized in that the torque sensor (13) is connected to a torque acquisition system (11).
7. The device according to claim 1, characterized in that the temperature sensor (16) is connected to a temperature acquisition system (12).
8. The device according to claim 1, characterized in that a rubber gasket is arranged between the reduction motor (1) and the sealed cabin (8) for sealing.
9. The device according to claim 2, characterized in that the pressure regulating range of the pressure stabilizing valve (5) is 0-0.5 MPa.
10. The device according to claim 1, characterized in that the controllable range of the environmental temperature in the sealed cabin (8) and the water bath cabin (10) is 20-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502530.4U CN210269371U (en) | 2019-04-12 | 2019-04-12 | Testing arrangement of ground body shear strength under high temperature high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502530.4U CN210269371U (en) | 2019-04-12 | 2019-04-12 | Testing arrangement of ground body shear strength under high temperature high pressure |
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| Publication Number | Publication Date |
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| CN210269371U true CN210269371U (en) | 2020-04-07 |
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| CN201920502530.4U Active CN210269371U (en) | 2019-04-12 | 2019-04-12 | Testing arrangement of ground body shear strength under high temperature high pressure |
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