CN109629506B - Rock plug blasting model test water pressure detection device and use method - Google Patents
Rock plug blasting model test water pressure detection device and use method Download PDFInfo
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- CN109629506B CN109629506B CN201811578521.XA CN201811578521A CN109629506B CN 109629506 B CN109629506 B CN 109629506B CN 201811578521 A CN201811578521 A CN 201811578521A CN 109629506 B CN109629506 B CN 109629506B
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Abstract
The invention relates to a rock plug blasting model test water pressure detection device and a use method thereof, and belongs to the technical field of hydraulic engineering. The invention utilizes the gate plate capable of adjusting the position and the pressure sensor provided with the rubber bag to detect the pressure on the gate plate, and simultaneously cooperates with the drainage tube to detect the water pressure in the drainage section to obtain the water pressure detection device. The sealing cover plate is arranged at the top of the main shell, a cushion pad is arranged on the inner wall of one side of the main shell, a water injection hole is formed in the sealing cover plate and is close to one side of the main shell, one end of a water injection pipe penetrates through the water injection hole and is arranged in the main shell, the water injection pipe is connected with the sealing cover plate, a water outlet hole is formed in the position, close to the bottom, of the other side of the main shell, a plugging cap is arranged in the water outlet hole and is made of a rubber material, a limiting ring is arranged on the plugging cap, a vertical.
Description
Technical Field
The invention relates to a rock plug blasting model test water pressure detection device and a use method thereof, and belongs to the technical field of hydraulic engineering.
Background
At present, in the projects of development in the field of water conservancy and hydropower, flood control and the like, underwater rock plug blasting is a frequently used technical means, is mainly used for building an inlet and an outlet of a tunnel water channel of a reservoir and a lake, does not need to empty water in the reservoir or the lake and build a cofferdam in the construction process, saves a large amount of cost and time for construction, needs to consider terrain and topography when some projects adopt the underwater rock plug blasting, avoids other geological disasters caused by blasting, causes reservoir collapse and the like, needs to carry out test simulation before construction operation to ensure the safety of construction, mainly carries out analysis and detection on stress conditions at each part by simulating the current rock plug water inlet blasting model, then determines an optimal construction scheme according to the result or provides reference suggestions for construction, and needs to carry out water pressure detection at the rear end of the rock plug water inlet, the current simulation detection means is that the pressure sensor is directly distributed at the corresponding position, the stress is analyzed through the pressure sensor, the sensor is directly contacted with a water body, in the test simulation process, because the stress after blasting is dispersed, and the stress is complex, the influence and the damage to the sensor are more serious, the subsequent detection is influenced, the sensor is not subjected to protection measures, and the detection at a fixed distance cannot be adjusted, so that the detection flexibility is limited.
The authorization notice number CN104762918B discloses a hydraulic pressure test method for a rock plug blasting model test, which comprises the following steps: the method comprises the steps of firstly establishing a normal model according to a rock plug blasting model scale, arranging pressure sensors in a subarea mode, selecting the types of the pressure sensors and acquiring pressure data.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to improve the situation, the invention provides a water pressure detection device for a rock plug blasting model test and a using method thereof, and the water pressure detection device is used for detecting the pressure on a gate plate by utilizing a gate plate capable of adjusting the position and a pressure sensor provided with a rubber bag and detecting the water pressure in a drainage section by matching with a drainage tube. The sensor can be protected, and the service life is prolonged.
The technical scheme of the invention is as follows: a rock plug blasting model test water pressure detection device comprises a main body device and an adjusting and detecting device;
the main body device comprises a main shell 1, a water injection pipe 3, a sealing cover plate 4, a vertical partition plate 5, a first inclined partition plate 6, a water storage cavity 7, a plugging cap 9, a drain pipe 12, a rock plug water inlet 15 and a second inclined partition plate 16;
the top of the main shell body 1 is arranged in the sealing cover plate 4, the sealing cover plate 4 is provided with a water injection hole and is close to one side of the main shell body 1, one end of the water injection pipe 3 penetrates through the water injection hole and is arranged in the main shell body 1, the water injection pipe 3 is connected with the sealing cover plate 4, the other side of the main shell body 1 is provided with a water outlet hole close to the bottom position, the plugging cap 9 is arranged in the water outlet hole, the vertical clapboard 5 is arranged in the main shell body 1, one end of the vertical clapboard 5 is arranged in the middle position of the bottom surface of the sealing cover plate 4, the other end of the vertical clapboard 5 is provided with a transverse plate, one end of the second inclined clapboard 16 is connected with one end of the transverse plate, the other end of the second inclined clapboard extends downwards to the position close to the bottom of the main shell body, the other end of the first inclined partition plate 6 extends downwards obliquely to be connected with a water discharge pipe 12, a water storage cavity 7 is arranged among the vertical partition plate 5, the first inclined partition plate 6 and the water discharge pipe 12, and a communicating groove is formed in the water discharge pipe 12 and communicated with the water storage cavity 7;
the adjusting and detecting device comprises a supporting rod 8, a data transmission line 10, an adjusting nut 11, a gate plate 13, a water conduit 14, an outer supporting arm 17, an inner rubber sleeve 18, a fixed cover plate 19, a rubber bag 20, an installation clamping groove 21, a pressure sensor 22 and a sealing ring 23;
the water guide pipe 14 is arranged on the drain pipe 12 and is positioned between the first inclined partition plate 6 and the second inclined partition plate 16, the water guide pipe 14 is communicated with the drain pipe 12, an inner rubber sleeve 18 is arranged on the inner wall of the water guide pipe 14, a plurality of through grooves are formed in the water guide pipe 14, a plurality of outer support arms 17 are respectively arranged on the outer wall of the water guide pipe 14 and are installed in a one-to-one correspondence manner with the through grooves, pressure sensors 22 are arranged on the inner sides of the outer support arms 17, the gate plate 13 is arranged in the inner rubber sleeve 18, a sealing ring 23 is arranged on the outer ring of the gate plate 13, one end of the support rod 8 is connected with the gate plate 13, the other end of the support rod penetrates out of the plugging cap 9, an adjusting nut 11 is sleeved on the other end of the support rod 8 and is in threaded connection with the support rod 8, a plurality of installation clamping grooves 21 are formed in one side of the gate plate 13, a pressure sensor 22 is, one end of the data transmission line 10 penetrates out of the supporting rod 8, the fixed cover plate 19 is arranged on one side of the gate plate 13, a plurality of through holes are formed in the fixed cover plate 19 and are in one-to-one correspondence with the mounting clamping grooves 21, and the rubber capsules 20 are arranged in the through holes in one-to-one correspondence.
Further, a buffer pad 2 is arranged on the inner wall of one side of the main shell 1.
Further, drain pipe 12 one end is connected with main casing body 1 opposite side, and corresponding with the apopore, and the drain pipe 12 other end upwards bends to one side, and is connected with the oblique baffle 16 of second, and the drain pipe 12 other end is loudspeaker column structure, and the drain pipe 12 other end embeds there is plug water inlet 15, and communicates with the inlet opening is corresponding.
Further, the blocking cap 9 is made of a rubber material.
Further, the support bar 8 can slide on the plugging cap 9.
Furthermore, a plurality of through grooves are formed on the water conduit 14 at equal angles.
Further, a connecting ring is arranged outside the rubber bag 20 and connected with the fixed cover plate 19.
Further, a limit ring is arranged on the plugging cap 9.
The application method of the rock plug blasting model test water pressure detection device comprises the following specific steps:
1. firstly, placing simulated rock into a rock plug water inlet 15, injecting water into the main shell 1 through a water injection pipe 3, wherein the water in the main shell 1 is positioned in a cavity formed by a second inclined partition plate 16 and a vertical partition plate 5;
2. then, the position of the support rod 8 in the water conduit 14 is adjusted by rotating the adjusting nut 11, and the support rod 8 drives the gate plate 13 to move so as to adjust the position of the gate plate 13 in the water conduit 14;
3. connecting the data transmission line 10 with an external control device, and connecting the pressure sensors 22 on the gate plate 13 and the outer support arm 17 with the external control device;
4. rock burst is simulated, a rock plug inlet is opened, water between the vertical partition plate 5 and the second inclined partition plate 16 enters the drainage pipe 12 through the rock plug inlet, then enters the water conduit 14, the water impacts the inner rubber sleeve 18 and the fixed cover plate 19, the rubber bag 20 on the fixed cover plate 19 extrudes the pressure sensor 22 on the gate plate 13 under the impact force, the pressure sensor 22 on the gate plate 13 carries out pressure detection, meanwhile, the inner rubber sleeve 18 expands outwards under the stress to extrude the pressure sensor 22 on the inner side of the outer supporting arm 17, and then the pressure sensor 22 on the inner side of the outer supporting arm 17 detects the water pressure in the drainage section, and the pressure sensor 22 is not directly contacted with the water body in the detection process;
5. the pressure sensors 22 on the outer supporting arms 17 and the gate plate 13 transmit the detected pressure signals to an external control device through the data transmission line 10, and the external control device performs observation and analysis;
6. after the simulation is completed, the plugging cap 9 is opened, the gate plate 13 is taken out from the drain pipe 12, and water flows into the water storage cavity 7 along the drain pipe 12 and is discharged outwards through the water outlet hole.
The invention has the beneficial effects that:
1. the invention can adjust the position of the gate to detect a plurality of positions.
2. The invention can protect the sensor and prolong the service life.
3. The invention can detect the circumferential water pressure of the drainage section.
4. According to the invention, the pressure on the gate plate is detected by using the gate plate capable of adjusting the position and the pressure sensor provided with the rubber bag, and the water pressure in the drainage section is detected by matching with the drainage tube.
Drawings
FIG. 1 is a schematic structural diagram of a rock plug blasting model test water pressure detection device according to the invention;
FIG. 2 is a schematic perspective view of an outer support arm of a rock plug blasting model test water pressure detection device according to the present invention;
FIG. 3 is a schematic diagram of a three-dimensional structure of a rubber bag of the rock plug blasting model test water pressure detection device.
Reference numbers in fig. 1-3: 1-a main shell, 2-a buffer pad, 3-a water injection pipe, 4-a sealing cover plate, 5-a vertical partition plate, 6-a first inclined partition plate, 7-a water storage cavity, 8-a support rod, 9-a blocking cap, 10-a data transmission line, 11-an adjusting nut, 12-a drain pipe, 13-a gate plate, 14-a water guide pipe, 15-a rock plug water inlet, 16-a second inclined partition plate, 17-an outer support arm, 18-an inner rubber sleeve, 19-a fixed cover plate, 20-a rubber bag, 21-an installation clamping groove, 22-a pressure sensor and 23-a sealing ring.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Example 1: as shown in fig. 1-3, a rock plug blasting model test water pressure detection device comprises a main body device and an adjusting detection device;
the main body device comprises a main shell 1, a water injection pipe 3, a sealing cover plate 4, a vertical partition plate 5, a first inclined partition plate 6, a water storage cavity 7, a plugging cap 9, a drain pipe 12, a rock plug water inlet 15 and a second inclined partition plate 16;
the sealing cover plate 4 is arranged at the top of the main shell body 1, a buffer cushion 2 is arranged on the inner wall of one side of the main shell body 1, a water injection hole is formed in the sealing cover plate 4 and is close to one side of the main shell body 1, one end of a water injection pipe 3 penetrates through the water injection hole and is arranged in the main shell body 1, the water injection pipe 3 is connected with the sealing cover plate 4, a water outlet hole is formed in the other side of the main shell body 1 close to the bottom, a plugging cap 9 is arranged in the water outlet hole, the plugging cap 9 is made of rubber materials, a limiting ring is arranged on the plugging cap 9, a vertical partition plate 5 is arranged in the main shell body 1, one end of the vertical partition plate is arranged at the middle position of the bottom of the sealing cover plate 4, a transverse plate is arranged at the other end of the vertical partition plate 5, one, the water storage device is characterized in that a water inlet hole is formed in the second inclined partition plate 16, the drain pipe 12 is arranged in the main shell 1, one end of the drain pipe 12 is connected with the other side of the main shell 1 and corresponds to a water outlet hole, the other end of the drain pipe 12 is bent upwards in an inclined mode and is connected with the second inclined partition plate 16, the other end of the drain pipe 12 is of a horn-shaped structure, a rock plug water inlet 15 is formed in the other end of the drain pipe 12 and is correspondingly communicated with the water inlet hole, the other end of the transverse plate is connected with one end of the first inclined partition plate 6, the other end of the first inclined partition plate 6 extends downwards in an inclined mode and is connected with the drain pipe 12, a water storage cavity 7 is formed between the vertical partition plate;
the adjusting and detecting device comprises a supporting rod 8, a data transmission line 10, an adjusting nut 11, a gate plate 13, a water conduit 14, an outer supporting arm 17, an inner rubber sleeve 18, a fixed cover plate 19, a rubber bag 20, an installation clamping groove 21, a pressure sensor 22 and a sealing ring 23;
the water guide pipe 14 is arranged on the drain pipe 12 and is positioned between the first inclined partition plate 6 and the second inclined partition plate 16, the water guide pipe 14 is communicated with the drain pipe 12, an inner rubber sleeve 18 is arranged on the inner wall of the water guide pipe 14, a plurality of through grooves are formed in the water guide pipe 14 at equal angles, a plurality of outer support arms 17 are respectively arranged on the outer wall of the water guide pipe 14 and are installed in a one-to-one correspondence manner with the through grooves, pressure sensors 22 are arranged on the inner sides of the outer support arms 17, the gate plate 13 is arranged in the inner rubber sleeve 18, a sealing ring 23 is arranged on the outer ring of the gate plate 13, one end of the support rod 8 is connected with the gate plate 13, the other end of the support rod penetrates out of the plugging cap 9, the support rod 8 can slide on the plugging cap 9, an adjusting nut 11 is sleeved on the other end of the support rod 8 and is in threaded connection with the support rod 8, a plurality of installation clamping grooves 21 are formed, the pressure sensor 22 is provided with a data transmission line 10, one end of the data transmission line 10 penetrates out of the support rod 8, the fixed cover plate 19 is arranged on one side of the gate plate 13, the fixed cover plate 19 is provided with a plurality of through holes which are in one-to-one correspondence with the mounting clamping grooves 21, the rubber bags 20 are arranged in the through holes in one-to-one correspondence, and the outer side of each rubber bag 20 is provided with a connecting ring which is connected with the fixed cover plate 19.
The application method of the rock plug blasting model test water pressure detection device comprises the following specific steps:
1. firstly, placing simulated rock into a rock plug water inlet 15, injecting water into the main shell 1 through a water injection pipe 3, wherein the water in the main shell 1 is positioned in a cavity formed by a second inclined partition plate 16 and a vertical partition plate 5;
2. then, the position of the support rod 8 in the water conduit 14 is adjusted by rotating the adjusting nut 11, and the support rod 8 drives the gate plate 13 to move so as to adjust the position of the gate plate 13 in the water conduit 14;
3. connecting the data transmission line 10 with an external control device, and connecting the pressure sensors 22 on the gate plate 13 and the outer support arm 17 with the external control device;
4. rock burst is simulated, a rock plug inlet is opened, water between the vertical partition plate 5 and the second inclined partition plate 16 enters the drainage pipe 12 through the rock plug inlet, then enters the water conduit 14, the water impacts the inner rubber sleeve 18 and the fixed cover plate 19, the rubber bag 20 on the fixed cover plate 19 extrudes the pressure sensor 22 on the gate plate 13 under the impact force, the pressure sensor 22 on the gate plate 13 carries out pressure detection, meanwhile, the inner rubber sleeve 18 expands outwards under the stress to extrude the pressure sensor 22 on the inner side of the outer supporting arm 17, and then the pressure sensor 22 on the inner side of the outer supporting arm 17 detects the water pressure in the drainage section, and the pressure sensor 22 is not directly contacted with the water body in the detection process;
5. the pressure sensors 22 on the outer supporting arms 17 and the gate plate 13 transmit the detected pressure signals to an external control device through the data transmission line 10, and the external control device performs observation and analysis;
6. after the simulation is completed, the plugging cap 9 is opened, the gate plate 13 is taken out from the drain pipe 12, and water flows into the water storage cavity 7 along the drain pipe 12 and is discharged outwards through the water outlet hole. The aim of carrying out test simulation on rock plug blasting in hydraulic engineering is achieved.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a rock plug blasting model test water pressure detection device which characterized in that: comprises a main body device and an adjusting and detecting device;
the main body device comprises a main shell (1), a water injection pipe (3), a sealing cover plate (4), a vertical partition plate (5), a first inclined partition plate (6), a water storage cavity (7), a plugging cap (9), a drain pipe (12), a rock plug water inlet (15) and a second inclined partition plate (16);
the top of the main shell body (1) is arranged in the sealing cover plate (4), a water injection hole is formed in the sealing cover plate (4) and is close to one side of the main shell body (1), one end of a water injection pipe (3) penetrates through the water injection hole and is arranged in the main shell body (1), the water injection pipe (3) is connected with the sealing cover plate (4), a water outlet hole is formed in the other side of the main shell body (1) close to the bottom position, a plugging cap (9) is arranged in the water outlet hole, a vertical partition plate (5) is arranged in the main shell body (1), one end of the vertical partition plate (5) is arranged in the middle position of the bottom surface of the sealing cover plate (4), a transverse plate is arranged at the other end of the vertical partition plate (5), one end of a second inclined partition plate (16) is connected with one end of the transverse plate, the other end of the second inclined partition plate extends to be, the drain pipe (12) is arranged in the main shell (1), the other end of the transverse plate is connected with one end of the first inclined partition plate (6), the other end of the first inclined partition plate (6) extends downwards in an inclined mode to be connected with the drain pipe (12), a water storage cavity (7) is arranged among the vertical partition plate (5), the first inclined partition plate (6) and the drain pipe (12), and a communicating groove is formed in the drain pipe (12) and communicated with the water storage cavity (7);
the adjusting and detecting device comprises a supporting rod (8), a data transmission line (10), an adjusting nut (11), a gate plate (13), a water conduit (14), an outer supporting arm (17), an inner rubber sleeve (18), a fixed cover plate (19), a rubber bag (20), an installation clamping groove (21), a pressure sensor (22) and a sealing ring (23);
the water guide pipe (14) is arranged on the drain pipe (12) and is positioned between the first inclined partition plate (6) and the second inclined partition plate (16), the water guide pipe (14) is communicated with the drain pipe (12), an inner rubber sleeve (18) is arranged on the inner wall of the water guide pipe (14), a plurality of through grooves are formed in the water guide pipe (14), a plurality of outer support arms (17) are respectively arranged on the outer wall of the water guide pipe (14) and are installed in one-to-one correspondence with the through grooves, pressure sensors (22) are arranged on the inner sides of the outer support arms (17), the gate plate (13) is arranged in the inner rubber sleeve (18), a sealing ring (23) is arranged on the outer ring of the gate plate (13), one end of the support rod (8) is connected with the gate plate (13), the other end of the support rod penetrates out of the plugging cap (9), an adjusting nut (11) is sleeved on the other end of the support rod (8) and is in threaded connection with the support, a plurality of installation clamping grooves (21) are formed in one side of the gate plate (13), a pressure sensor (22) is also arranged in each installation clamping groove (21), a data transmission line (10) is arranged on each pressure sensor (22), one end of each data transmission line (10) penetrates out of the corresponding support rod (8), a fixed cover plate (19) is arranged on one side of the gate plate (13), a plurality of through holes are formed in the fixed cover plate (19) and correspond to the installation clamping grooves (21) one by one, and a plurality of rubber bags (20) are arranged in the through holes one by one;
drain pipe (12) one end is connected with main casing body (1) opposite side, and corresponding with the apopore, bends to one side drain pipe (12) other end, and is connected with second baffle (16) to one side, and the drain pipe (12) other end is loudspeaker column structure, and drain pipe (12) other end embeds there is rock plug water inlet (15), and communicates with the inlet opening is corresponding.
2. The rock plug blasting model test water pressure detection device of claim 1, wherein: a buffer pad (2) is arranged on the inner wall of one side of the main shell (1).
3. The rock plug blasting model test water pressure detection device of claim 1, wherein: the plugging cap (9) is made of rubber material.
4. The rock plug blasting model test water pressure detection device of claim 1, wherein: the supporting rod (8) can slide on the plugging cap (9).
5. The rock plug blasting model test water pressure detection device of claim 1, wherein: the water conduit (14) is provided with a plurality of through grooves at equal angles.
6. The rock plug blasting model test water pressure detection device of claim 1, wherein: the outer side of the rubber bag (20) is provided with a connecting ring and is connected with a fixed cover plate (19).
7. The rock plug blasting model test water pressure detection device of claim 1, wherein: a limiting ring is arranged on the plugging cap (9).
8. The use method of the rock plug blasting model test water pressure detection device of claim 1 is characterized in that: the using method comprises the following specific steps:
1) firstly, placing simulated rock into a rock plug water inlet (15), injecting water into the main shell (1) through a water injection pipe (3), wherein the water in the main shell (1) is positioned in a cavity formed by a second inclined partition plate (16) and a vertical partition plate (5);
2) then, the position of the support rod (8) in the water conduit (14) is adjusted by rotating the adjusting nut (11), and the support rod (8) drives the gate plate (13) to move so as to adjust the position of the gate plate (13) in the water conduit (14);
3) connecting the data transmission line (10) with an external control device, and connecting the gate plate (13) and the pressure sensor (22) on the outer support arm (17) with the external control device;
4) rock blasting is simulated, a rock plug inlet is opened, water between a vertical partition plate (5) and a second inclined partition plate (16) enters a drain pipe (12) through the rock plug inlet, then enters a water conduit (14), the water impacts an inner rubber sleeve (18) and a fixed cover plate (19), a rubber bag (20) on the fixed cover plate (19) extrudes a pressure sensor (22) on a gate plate (13) under the impact force, then the pressure sensor (22) on the gate plate (13) carries out pressure detection, meanwhile, the inner rubber sleeve (18) is expanded outwards under the stress, the pressure sensor (22) on the inner side of an outer supporting arm (17) is extruded, then the pressure sensor (22) on the inner side of the outer supporting arm (17) detects the water pressure in a drainage section, and the pressure sensor (22) is not directly contacted with a water body in the detection process;
5) the pressure sensors (22) on the outer supporting arms (17) and the gate plate (13) transmit detected pressure signals to an external control device through a data transmission line (10), and the external control device is used for observation and analysis;
6) and after the simulation is finished, the plugging cap (9) is opened, the gate plate (13) is taken out from the water discharge pipe (12), and water flows into the water storage cavity (7) along the water discharge pipe (12) and is discharged outwards through the water outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578521.XA CN109629506B (en) | 2018-12-24 | 2018-12-24 | Rock plug blasting model test water pressure detection device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578521.XA CN109629506B (en) | 2018-12-24 | 2018-12-24 | Rock plug blasting model test water pressure detection device and use method |
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| CN109629506A CN109629506A (en) | 2019-04-16 |
| CN109629506B true CN109629506B (en) | 2020-10-09 |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413255A (en) * | 2008-11-27 | 2009-04-22 | 浙江省电力设计院 | Electric power plant circulating water rock plug type intake and construction method |
| CN203362103U (en) * | 2013-07-03 | 2013-12-25 | 中水东北勘测设计研究有限责任公司 | Plugging device for high-precision radial drill holes inside rock-plug blasting cave |
| CN104404912B (en) * | 2014-10-27 | 2019-10-29 | 水利部交通运输部国家能源局南京水利科学研究院 | Chock blasting model test rock plug setting method |
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