CN117538925A - Surrounding rock crack detection device for geotechnical engineering - Google Patents
Surrounding rock crack detection device for geotechnical engineering Download PDFInfo
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- CN117538925A CN117538925A CN202410026430.4A CN202410026430A CN117538925A CN 117538925 A CN117538925 A CN 117538925A CN 202410026430 A CN202410026430 A CN 202410026430A CN 117538925 A CN117538925 A CN 117538925A
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- 238000001514 detection method Methods 0.000 title claims abstract description 210
- 239000011435 rock Substances 0.000 title claims abstract description 32
- 238000005070 sampling Methods 0.000 claims abstract description 28
- 210000001503 joint Anatomy 0.000 claims description 54
- 230000007246 mechanism Effects 0.000 claims description 45
- 238000007790 scraping Methods 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000000605 extraction Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 11
- 239000000523 sample Substances 0.000 description 10
- 238000003032 molecular docking Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
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Abstract
The invention relates to the technical field of geotechnical engineering exploration and discloses a geotechnical engineering surrounding rock crack detection device which comprises a support component, wherein the end part of the support component is fixedly connected with a front end plugging detection component, and one side of the front end plugging detection component is sequentially provided with a sampling component and a rear end plugging detection component which are connected with the support component; the supporting component comprises a bearing pipe, wherein the outer ring at one end of the bearing pipe is fixedly sleeved with a front end plugging plate, and the outer ring at the other end of the bearing pipe is fixedly sleeved with a rear end plugging plate. According to the invention, the traditional detection construction mode is changed, the air state in the detection hole is detected in real time by performing one-time blocking according to the depth of the detection hole, the detection medium permeated by overflow is timely supplemented, the occurrence of inaccurate detection caused by too few detection mediums is reduced, the detection operation of detecting different positions of the detection hole is realized while the detection medium is blocked in one time and supplemented in real time, the operation difficulty of detection personnel is reduced, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering exploration, in particular to a surrounding rock crack detection device for geotechnical engineering.
Background
In nature and practical engineering application, cracks with different geometric shapes exist in a rock body, filling materials with different physical properties and geometric dimensions exist in most cracks, and in general, a filling medium is a low-strength medium which is formed by weathering, construction and groundwater, has loose structures such as gravel, sandy soil and the like, irregular morphological structures, large porosity and is easy to deform.
The rock mass used in engineering construction is generally a complex rock mass containing cracks, a large number of filling substances with different properties are often contained in the cracks, a plurality of filling cracks are usually generated on the periphery of the rock mass after a cavity is excavated in the engineering, and the existence of the filling cracks not only ensures that the anisotropy of surrounding rock is very remarkable, but also causes the discontinuity of the surrounding rock, reduces the strength of the surrounding rock, leads deformation damage to be more complex and directly influences the stability of the surrounding rock of the cavity.
Under the action of various complex loads such as fluid seepage, confining pressure and the like, the filling cracks cause damage to the filling cracks in various aspects such as mechanics, chemistry, deformation, fracture and the like, so that engineering instability and geological disasters are not enumerated, and particularly, the deformation of the filling cracks has non-negligible influence on the safety and stability of the engineering such as mines, water conservancy, bridges, mountain tunnels and the like. Therefore, the crack development degree of surrounding rock in the construction and operation processes is detected, and the effect of engineering disaster treatment measures is analyzed, so that the stability and the safety of engineering are evaluated, the safety and the quality can be ensured, a reasonable decision can be timely made, and the occurrence of geological disasters is avoided.
The existing single-hole detection mode generally adopts the following mode to detect:
before testing, firstly cleaning the drill hole by wind or water; placing the probe into the measuring hole and connecting a long water pipe; blocking the hole by using an air bag, and injecting water into the measuring hole by using a water pump when the air bag is inflated by using an air cylinder; when the water in the measuring hole is full, the longitudinal wave velocity of the point can be measured; deflating the air bag, moving out the probe for 20cm, allowing air and water to flow in, and performing the test of the next point until the completion;
when the detection mode is operated, the air bag inflation and deflation, the water injection, the water pumping, the air suction and the air inflation of the detection hole are required to be carried out, the operation is troublesome, meanwhile, detection mediums cannot be timely supplemented in the detection hole when the overflow and the leakage of the detection hole occur in the detection process, the detection error is overlarge, the detection precision is inaccurate, and therefore the geotechnical engineering surrounding rock crack detection device is provided.
Disclosure of Invention
In order to solve the technical problems of troublesome operation and inaccurate detection precision caused by overlarge detection error due to incapability of timely supplementing detection media in a detection hole when overflow and leakage of the detection hole occur in the detection process, the invention provides a surrounding rock crack detection device for geotechnical engineering.
The invention is realized by adopting the following technical scheme: the surrounding rock crack detection device for geotechnical engineering comprises a support component, wherein the end part of the support component is fixedly connected with a front end plugging detection component, and a sampling component and a rear end plugging detection component which are connected with the support component are sequentially arranged on one side of the front end plugging detection component;
the support assembly comprises a bearing pipe, a front end plugging plate is fixedly sleeved on the outer ring at one end of the bearing pipe, a rear end plugging plate is fixedly sleeved on the outer ring at the other end of the bearing pipe, a support pipe positioned on the outer ring of the bearing pipe is fixedly connected between the front end plugging plate and the rear end plugging plate, the support pipe penetrates through a first guide channel, a second guide channel and a third guide channel which are distributed between the front end plugging plate and the rear end plugging plate, the first guide channel, the second guide channel and the third guide channel are all arranged along the length direction of the support pipe, side baffles fixedly connected with the bearing pipe are fixedly connected to two sides of the openings of the first guide channel, the second guide channel and the third guide channel, a driving unit I movably sleeved with the rear end plugging plate is arranged in the first guide channel, a driving unit II movably sleeved with the rear end plugging plate is arranged in the guide channel, and a driving unit III movably sleeved with the rear end plugging plate is arranged in the guide channel;
the rear end plugging detection assembly comprises a housing which is sleeved on an outer ring of the support tube in a sliding manner, one side of the housing, which is close to the sampling assembly, is provided with a first installation groove of the annular structure, the first installation groove is connected with a first scraping mechanism which is movably sleeved with the support tube, the top and the bottom of one side of the housing, which is close to the sampling assembly, are respectively provided with a first triggering extraction mechanism, the outer ring of the housing is fixedly sleeved with an air bag I, a conveying sleeve I for accommodating a cable duct is arranged in the housing, a first butt joint unit, a second butt joint unit and a third butt joint unit which are sequentially distributed are fixedly connected with an inner ring of the housing, the first butt joint unit is connected with the first driving unit, the second butt joint unit is connected with the second driving unit, and the third butt joint unit is connected with the third driving unit;
the sampling assembly comprises a fixed disc which is sleeved on the outer ring of the supporting tube in a sliding manner, wherein the inner ring of the fixed disc is fixedly connected with a fourth butting unit, a fifth butting unit and a sixth butting unit which are distributed in sequence, the fourth butting unit is connected with the first driving unit, the fifth butting unit is connected with the second driving unit, and the sixth butting unit is connected with the third driving unit;
the front end shutoff detection assembly comprises a box body of a disc-shaped structure, a second installation groove which is coaxially arranged on one side, close to the sampling assembly, of the box body is provided with a second scraping mechanism which is in sliding sleeve joint with the outer ring of the supporting tube, an extension rod fixedly connected with the front end shutoff plate is fixedly connected to the inner side wall of the end portion of the box body, a second triggering extraction mechanism is arranged on the top and the bottom, close to one side of the sampling assembly, of the box body, an air bag is fixedly sleeved on the outer side of the box body, and a second conveying sleeve for accommodating a cable pipeline is arranged in the box body.
According to the technical scheme, the distance between the rear end plugging detection component and the front end plugging detection component is adjusted according to the depth of the detection hole, so that the detection device is suitable for the detection operation of the detection hole with the current depth, the adjusted detection device is thrown into the detection hole, plugging operation is carried out from the bottom and the opening of the detection hole by using the rear end plugging detection component and the front end plugging detection component, then the detection hole is subjected to air extraction and liquid injection operation by using the rear end plugging detection component and the front end plugging detection component, a detection medium is injected into the detection hole, and meanwhile, the rear end plugging detection component and the front end plugging detection component are used for detecting the medium in the detection hole in real time, so that the air content in the detection hole is reduced, the detection medium is filled into the detection hole as much as possible, and the detection error is reduced; and then detecting sequentially along the length direction of the detection hole by utilizing the sampling assembly.
As a further improvement of the scheme, the first driving unit comprises a first rotating shaft movably sleeved with the front end plugging plate and the rear end plugging plate, a driving groove of a spiral structure arranged along the length direction of the first rotating shaft is formed in the outer ring of the first rotating shaft, the first rotating shaft is connected with the first butting unit and the fourth butting unit, the second driving unit comprises a second rotating shaft movably sleeved with the front end plugging plate and the rear end plugging plate, a limiting groove arranged along the length direction of the second rotating shaft is formed in the outer ring of the second rotating shaft, the cross section of the limiting groove is of a regular polygon structure, the second rotating shaft is connected with the second butting unit and the fifth butting unit, and the third driving unit is consistent with the first driving unit in structure.
As a further improvement of the scheme, the first butt joint unit comprises a first baffle fixedly connected with the inner ring of the housing, the first baffle is in sliding connection with the side baffle and the bearing tube, a first through hole which is in sliding connection with the first driving unit is formed in the first baffle, a pushing rod which is in sliding connection with the first driving unit is fixedly connected with the inner ring of the housing, the second butt joint unit comprises a second baffle fixedly connected with the inner ring of the housing, the second baffle is in sliding connection with the side baffle and the bearing tube, the second baffle is movably sleeved with a third baffle fixedly connected with the inner ring of the housing, the third baffle is in sliding connection with the side baffle and the bearing tube, the third baffle is movably sleeved with a second transfer ring which is movably sleeved with the third driving unit, the second inner ring of the transfer ring is fixedly connected with a sealing rod which is in sliding connection with the third driving unit, the second butt joint unit is consistent with the fifth butt joint unit, the sixth butt joint unit is consistent with the first butt joint unit, and the third butt joint unit is consistent with the fourth butt joint unit.
According to the technical scheme, the motor I on the driving unit I is started to drive the rotating shaft I to rotate, the baffle I slides along the length direction of the side plate baffle under the action of the driving groove and the pushing rod I on the baffle I on the butting unit I, and then the cover shell is driven to integrally slide along the length direction of the supporting tube, so that the position of the cover shell on the supporting tube is adjusted, and the distance between the rear end plugging detection assembly and the front end plugging detection assembly is adjusted; and the motor II of the driving mechanism II is started to drive the rotating shaft II to rotate, and then the rotating shaft II drives the movable sleeve which is in sliding connection with the limiting groove on the rotating shaft II to rotate so as to drive the scraping mechanism I and the scraping mechanism II to carry out scraping operation.
As a further improvement of the scheme, the scraping mechanism I comprises a rotary plate I which is movably sleeved with a mounting groove I and is movably sleeved with a supporting tube outer ring, one side, close to a housing, of the rotary plate I is fixedly connected with a rotary plate II which is of an annular structure, the rotary plate I is fixedly connected with a supporting rod, the other end of the supporting rod is fixedly connected with a scraper mounting plate, the scraper mounting plate is fixedly connected with a scraper, an inner ring of one end, extending into the housing, of the rotary plate II is fixedly sleeved with a bevel gear ring, the bevel gear ring is meshed with a switching unit, the switching unit is connected with a movable sleeve which is slidably connected with a driving unit II, the movable sleeve outer ring is movably sleeved with a supporting frame which is of an L-shaped structure and fixedly connected with the housing, and the scraping mechanism I is consistent with the structure of the scraping mechanism II.
As a further improvement of the scheme, the switching unit comprises a first bevel gear meshed with the bevel gear ring, a rotating rod is fixedly sleeved on an inner ring of the first bevel gear, a transverse plate fixedly connected with the housing is movably sleeved on an outer ring of the rotating rod, a second bevel gear is meshed with an outer ring of the rotating rod, and a third bevel gear fixedly sleeved with the movable sleeve is meshed with one side of the second bevel gear.
Through the technical scheme, the movable sleeve drives the bevel gear III to rotate, then the bevel gear ring rotates under the drive of the bevel gear II, the rotary rod and the bevel gear I, then the rotary plate II rotates, and the rotary plate I rotates, so that the supporting rod moves, and then the scraping plate scrapes away the foreign matters on the trigger unit along with the movement of the scraping plate mounting plate.
As a further improvement of the scheme, the first triggering and extracting mechanism comprises a triggering unit fixedly connected to the housing, an extracting unit is arranged on one side, far away from the supporting tube, of the triggering unit, the triggering unit comprises a top transverse conducting strip fixedly sleeved on the housing, a first conducting block integrally arranged is fixedly connected to the bottom of one end of the top transverse conducting strip, a second conducting block positioned on the housing is arranged at the other end of the top transverse conducting strip, a bottom transverse conducting strip integrally arranged is fixedly connected to the bottom of the second conducting block, and the top transverse conducting strip and the bottom transverse conducting strip are arranged in parallel and reserved with a gap; the extraction unit comprises an air pipe I and a water pipe I which are fixedly sleeved with the housing.
As a further improvement of the scheme, the conductive posts are fixedly connected to one ends of the top transverse conductive strip and the bottom transverse conductive strip, which extend into the housing, and the conductive posts are connected with a first cable.
Through the technical scheme, when scraping, in order to avoid the scraper blade to block up and switch on, the thickness of scraper blade is less than the clearance between horizontal conducting strip in top and the conducting bar II, the thickness of scraper blade is less than the clearance between horizontal conducting strip in bottom and the conducting bar I, after the scraper blade is clear away the foreign matter that the surface of horizontal conducting strip in top, the conducting bar II, the horizontal conducting strip in bottom and conducting bar I, when the medium surface of water is higher than the trigger unit top, trigger unit is switched on and forms the trigger signal, when the medium surface of water is lower than the trigger unit top, trigger unit is not switched on and does not form the trigger signal, the foreign matter adhesion in the medium can effectually be avoided on the trigger unit to influence trigger unit detection effect to this mode, on the one hand in time clear away the foreign matter that trigger unit adhered, ensure that trigger unit in time triggers, also can reduce simultaneously because of the mistake interference condition emergence that the foreign matter adhered and formed, ensure to detect accurately.
As a further improvement of the scheme, the outer ring of the fixed disc is inlaid with sensors distributed in an array, and one side of the fixed disc is fixedly connected with a conveying sleeve III which is sleeved with the first butt joint unit and the rear end plugging plate in a sliding manner and used for accommodating cables.
Through the technical scheme, the ultrasonic transmitting probe and the ultrasonic receiving probe are utilized to transmit and receive ultrasonic waves, so that the sampling operation of the detection hole is realized.
As a further improvement of the scheme, the second conveying sleeve is of an L-shaped structure, the second conveying sleeve is in sliding sleeve joint with the second butt joint unit and the rear end plugging plate, the first air bag is communicated with the second air pipe fixedly connected with the housing, and the second air bag is communicated with the third air pipe fixedly connected with the box body.
As a further improvement of the scheme, the outer ring of the supporting tube is provided with scales arranged along the length direction of the supporting tube, and the outer ring of one end of the supporting tube, which is far away from the front end plugging detection assembly, is fixedly connected with a handle.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the traditional detection construction mode is changed, the air state in the detection hole is detected in real time by performing one-time blocking according to the depth of the detection hole, the detection medium permeated by overflow is timely supplemented, and the occurrence of inaccurate detection caused by too few detection mediums is reduced.
According to the invention, the plugging position is adjusted according to the depth of the detection hole, so that the installation operation of the detection holes with different depths is realized, and the method is suitable for detection operation under different conditions; the air state inside the detection holes with different inclination angles can be detected, so that the detection holes with different inclination states can be ensured to be timely supplied with detection media during detection.
The invention changes the traditional detection modes of back and forth blocking switching, air charging and discharging and water filling and pumping, realizes detection operation on different positions of the detection hole while one-time blocking and real-time supplementing of detection media, reduces the operation difficulty of detection personnel and improves the detection efficiency.
Drawings
FIG. 1 is a schematic structural view of a geotechnical engineering surrounding rock crack detection device provided by the invention;
FIG. 2 is a cross-sectional view of a geotechnical engineering surrounding rock fracture detection device provided by the invention;
FIG. 3 is a schematic view of the structure of FIG. 2 with enlarged view of the portion A;
FIG. 4 is a side view of a back end occlusion detection assembly provided by the present invention;
fig. 5 is a schematic structural diagram of a first rotary plate and a second rotary plate according to the present invention;
FIG. 6 is a schematic structural diagram of a first scraping mechanism according to the present invention;
FIG. 7 is a schematic view of a support assembly according to the present invention;
FIG. 8 is a schematic diagram of a trigger unit according to the present invention;
FIG. 9 is a schematic diagram of a sampling assembly according to the present invention;
fig. 10 is a schematic view of a structure partially enlarged at B in fig. 2 according to the present invention.
Main symbol description:
the device comprises a support component 1, a rear end plugging detection component 2, a sampling component 3, a front end plugging detection component 4, a bearing pipe 11, a rear end plugging plate 12, a support pipe 13, a guide channel 14, a guide channel 15, a guide channel 16, a side baffle 17, a drive unit 18, a drive unit 19, a drive unit 110, a drive unit 21, a housing 21, a mounting groove 22, a scraping mechanism 23, a triggering extraction mechanism 24, a conveying sleeve 25, a butt joint unit 26, a butt joint unit 27, a butt joint unit 28, a balloon 29, a fixed disk 31, a butt joint unit 32, a butt joint unit 33, a butt joint unit 34, a butt joint unit six, a box body 41, a 42 extension rod, a mounting groove 43, a scraping mechanism 44, a scraping mechanism 45, a scraping mechanism 46, a balloon 47 conveying sleeve 47, a rotating plate 232 rotating plate, a supporting rod 233, a scraper mounting plate 234, a scraper 235, a conical gear ring, a 237 switching unit 238, a movable sleeve 239, a supporting frame 241, a top transverse conductive bar 242 conductive block, a conductive block 244 and a bottom transverse conductive bar.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Example 1
Referring to fig. 1-10, the geotechnical engineering surrounding rock crack detection device of the embodiment comprises a support assembly 1, wherein a front end plugging detection assembly 4 is fixedly connected to the end part of the support assembly 1, and a sampling assembly 3 and a rear end plugging detection assembly 2 which are connected with the support assembly 1 are sequentially arranged on one side of the front end plugging detection assembly 4;
the supporting component 1 comprises a bearing pipe 11, wherein a front end plugging plate 112 is fixedly sleeved on the outer ring at one end of the bearing pipe 11, a rear end plugging plate 12 is fixedly sleeved on the outer ring at the other end of the bearing pipe 11, a supporting pipe 13 positioned on the outer ring of the bearing pipe 11 is fixedly connected between the front end plugging plate 112 and the rear end plugging plate 12, a first guide channel 14, a second guide channel 15 and a third guide channel 16 which are distributed between the front end plugging plate 112 and the rear end plugging plate 12 penetrate through the supporting pipe 13, the first guide channel 14, the second guide channel 15 and the third guide channel 16 are all arranged along the length direction of the supporting pipe 13, side baffles 17 fixedly connected with the bearing pipe 11 are fixedly connected to the two sides of the openings of the first guide channel 14, the second guide channel 15 and the third guide channel 16, a first driving unit 18 movably sleeved with the rear end plugging plate 12 is mounted in the first guide channel 14, a second driving unit 19 movably sleeved with the rear end plugging plate 12 is mounted in the guide channel 15, and a third driving unit 110 movably sleeved with the rear end plugging plate 12 is mounted in the guide channel three 16;
the rear end plugging detection assembly 2 comprises a housing 21 which is in an annular structure and is sleeved on the outer ring of the supporting tube 13 in a sliding manner, one side, close to the sampling assembly 3, of the housing 21 is provided with a first mounting groove 22 in an annular structure, the first mounting groove 22 is connected with a first scraping mechanism 23 which is movably sleeved with the supporting tube 13, the top and the bottom of one side, close to the sampling assembly 3, of the housing 21 are provided with a first triggering and extracting mechanism 24 respectively, the outer ring of the housing 21 is fixedly sleeved with an air bag 29, a first conveying sleeve 25 for accommodating a cable duct is arranged in the housing 21, the inner ring of the housing 21 is fixedly connected with a first abutting unit 26, a second abutting unit 27 and a third abutting unit 28 which are sequentially distributed, the first abutting unit 26 is connected with the first driving unit 18, the second abutting unit 27 is connected with the second driving unit 19, and the third abutting unit 28 is connected with the third driving unit 110;
the sampling assembly 3 comprises a fixed disc 31 which is sleeved on the outer ring of the supporting tube 13 in a sliding manner, wherein a fourth docking unit 32, a fifth docking unit 33 and a sixth docking unit 34 which are sequentially distributed are fixedly connected to the inner ring of the fixed disc 31, the fourth docking unit 32 is connected with the first driving unit 18, the fifth docking unit 33 is connected with the second driving unit 19, and the sixth docking unit 34 is connected with the third driving unit 110;
the front end shutoff detection assembly 4 comprises a box 41 of a disc-shaped structure, a second mounting groove 43 which is coaxially arranged on one side, close to the sampling assembly 3, of the box 41 is provided with a second scraping mechanism 44 which is slidably sleeved on the outer ring of the supporting tube 13, an extension rod 42 fixedly connected with a front end shutoff plate 112 is fixedly connected to the inner side wall of the end part of the box 41, a second triggering extraction mechanism 45 is arranged on the top and the bottom of one side, close to the sampling assembly 3, of the box 41, an air bag 46 is fixedly sleeved on the outer ring of the box 41, and a second conveying sleeve 47 for accommodating a cable pipeline is arranged inside the box 41.
The implementation principle of the geotechnical engineering surrounding rock crack detection device in the embodiment of the application is as follows: the distance between the rear end plugging detection component 2 and the front end plugging detection component 4 is adjusted according to the depth of the detection hole, so that the detection device is suitable for the detection operation of the detection hole with the current depth, the adjusted detection device is thrown into the detection hole, plugging operation is carried out from the bottom and the opening of the detection hole by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, then the detection hole is subjected to air extraction and liquid injection operation by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, a detection medium is injected into the detection hole, and meanwhile, the medium in the detection hole is detected in real time by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, so that the air content in the detection hole is reduced, the detection medium is filled into the detection hole as much as possible, and the detection error is reduced; and then the sampling assembly 3 is utilized to detect the detection sequentially along the length direction of the detection hole.
Example 2
The further improvement of this embodiment on the basis of embodiment 1 is that: the first driving unit 18 comprises a first rotating shaft movably sleeved with the front end plugging plate 112 and the rear end plugging plate 12, a driving groove of a spiral structure arranged along the length direction of the first rotating shaft is formed in the outer ring of the first rotating shaft, the first rotating shaft is connected with the first butt joint unit 26 and the fourth butt joint unit 32, the second driving unit 19 comprises a second rotating shaft movably sleeved with the front end plugging plate 112 and the rear end plugging plate 12, a limiting groove arranged along the length direction of the second rotating shaft is formed in the outer ring of the rotating shaft, the cross section of the limiting groove is of a regular polygon structure, the second rotating shaft is connected with the second butt joint unit 27 and the fifth butt joint unit 33, and the third driving unit 110 is consistent with the first driving unit 18 in structure;
a motor I is arranged at one end of the first rotating shaft extending end plugging plate 12, and a motor II is arranged at one end of the second rotating shaft extending end plugging plate 12;
the first butt joint unit 26 comprises a first baffle fixedly connected with the inner ring of the housing 21, the first baffle is in sliding connection with the side baffle 17 and the bearing tube 11, a first through hole which is in sliding connection with the first rotating shaft of the first driving unit 18 is formed in the first baffle, a first pushing rod which is in sliding connection with the driving groove of the first driving unit 18 is fixedly connected with the inner ring of the first through hole, the second butt joint unit 27 comprises a second baffle fixedly connected with the inner ring of the housing 21, the second baffle is in sliding connection with the side baffle 17 and the bearing tube 11, the second baffle is movably sleeved with a first switching ring which is in sliding connection with the limiting groove of the second driving unit 19, the third butt joint unit 28 comprises a third baffle fixedly connected with the inner ring of the housing 21, the third baffle is in sliding connection with the side baffle 17 and the bearing tube 11, the third baffle is movably sleeved with a second switching ring which is movably sleeved with the third switching ring 110, the inner ring is fixedly connected with a sealing rod which is in sliding connection with the driving groove of the third driving unit 110, the second butt joint unit 27 is consistent with the fifth butt joint unit 33, the sixth butt joint unit 34 is consistent with the first butt joint unit 26, and the third butt joint unit 28 is consistent with the fourth butt joint unit 32.
Example 3
The further improvement of this embodiment on the basis of embodiment 1 is that: the scraping mechanism I23 comprises a first rotating plate 231 which is movably sleeved with the first mounting groove 22 and is movably sleeved with the outer ring of the supporting tube 13, a second rotating plate 232 which is of an annular structure is fixedly connected to one side, close to the housing 21, of the first rotating plate 231, a supporting rod 233 is fixedly connected to the outer ring of the first rotating plate 231, a scraper mounting plate 234 is fixedly connected to the other end of the supporting rod 233, a scraper 235 is fixedly connected to the scraper mounting plate 234, a bevel gear ring 236 is fixedly sleeved on the inner ring of one end, extending into the housing 21, of the second rotating plate 232, a switching unit 237 is meshed with the bevel gear ring 236, the switching unit 237 is connected with a movable sleeve 238 which is in sliding connection with a limiting groove of the second driving unit 19, a support frame 239 which is of an L-shaped structure and fixedly connected with the housing 21 is movably sleeved on the outer ring of the movable sleeve 238, and the scraping mechanism I23 is consistent with the structure of the scraping mechanism II 44;
the adapter unit 237 comprises a first bevel gear meshed with the bevel gear ring 236, a rotating rod is fixedly sleeved on an inner ring of the first bevel gear, a transverse plate fixedly connected with the housing 21 is movably sleeved on an outer ring of the rotating rod, a second bevel gear meshed with the outer ring of the rotating rod, and a third bevel gear fixedly sleeved with the movable sleeve 238 is meshed with one side of the second bevel gear.
Example 4
The first triggering and extracting mechanism 24 comprises a triggering unit fixedly connected to the housing 21, an extracting unit is arranged on one side, far away from the supporting tube 13, of the triggering unit, the triggering unit comprises a top transverse conducting strip 241 fixedly sleeved on the housing 21, a first conducting block 242 which is integrally arranged is fixedly connected to the bottom of one end of the top transverse conducting strip 241, a second conducting block 243 which is positioned on the housing 1 is arranged at the other end of the top transverse conducting strip 241, a bottom transverse conducting strip 244 which is integrally arranged is fixedly connected to the bottom of the second conducting block 243, and the top transverse conducting strip 241 and the bottom transverse conducting strip 244 are arranged in parallel and are reserved with gaps; the extraction unit comprises an air pipe I and a water pipe I which are fixedly sleeved with the housing 21;
the ends of the top transverse conducting strip 241 and the bottom transverse conducting strip 244 extending into the housing 21 are fixedly connected with conducting columns, and the conducting columns are connected with a first cable.
Example 5
The outer ring of the fixed disc 31 is embedded with sensors distributed in an array, and one side of the fixed disc 31 is fixedly connected with a conveying sleeve III which is sleeved with the first butt joint unit 26 and the rear end plugging plate 12 in a sliding manner and is used for accommodating cables;
the second conveying sleeve 47 is of an L-shaped structure, the second conveying sleeve 47 is in sliding sleeve joint with the second butt joint unit 27 and the rear end plugging plate 12, the first air bag 29 is communicated with a second air pipe fixedly connected with the housing 21, and the second air bag 46 is communicated with a third air pipe fixedly connected with the box 41;
the outer lane of stay tube 13 has offered the scale that sets up along its length direction, and the one end outer lane rigid coupling that stay tube 13 kept away from front end shutoff detection assembly 4 has the handle.
Example 6
The three-way pipe is arranged at one end of the first air pipe, the first water pipe, the second air pipe and the third air pipe, which extend out of the supporting pipe 13, one of the three-way pipes is connected with the conveying pipe, the other one of the three-way pipes is connected with the extracting pipe, and the sensor comprises an ultrasonic transmitting probe and an ultrasonic receiving probe which are embedded in the fixed disc 31.
The air supply pump is communicated with the conveying pipes of the first air pipe, the second air pipe and the third air pipe, the air pump is communicated with the extracting pipes of the first air pipe, the second air pipe and the third air pipe, the liquid storage tank is communicated with the conveying pipe of the first water pipe, and the recovery tank is communicated with the extracting pipe of the first water pipe; the delivery pipe and the extraction pipe of the first water pipe are respectively provided with an infusion pump;
the controller is connected with the storage battery, the air supply pump, the air pump, the liquid storage tank, the recovery tank, the motor I, the motor II, the infusion pump, the ultrasonic transmitting probe and the ultrasonic receiving probe.
Working principle: firstly, excavating a detection hole with a certain direction and depth in surrounding rock according to the detection requirement of the surrounding rock, then adjusting the distance between a rear end plugging detection component 2 and a front end plugging detection component 4 according to the depth of the detection hole, enabling the detection device to be suitable for the detection operation of the detection hole with the current depth, afterwards, throwing the adjusted detection device into the detection hole, plugging the detection hole from the bottom and the opening of the detection hole by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, then performing air extraction and liquid injection on the detection hole by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, injecting a detection medium into the detection hole, simultaneously detecting the medium in the detection hole in real time by utilizing the rear end plugging detection component 2 and the front end plugging detection component 4, reducing the air content in the detection hole, filling the detection medium in the detection hole as much as possible, and reducing the detection error; and then the sampling assembly 3 is utilized to detect the detection sequentially along the length direction of the detection hole.
When the detection length of the detection hole is adjusted, the motor I on the driving unit I18 is started to drive the rotating shaft I to rotate, the baffle I slides along the length direction of the side plate baffle 17 under the action of the driving groove and the pushing rod I on the baffle I on the butting unit I26, then the cover 21 is driven to integrally slide along the length direction of the support tube 13, so that the position of the cover 21 positioned on the support tube 13 is adjusted, the distance between the rear end plugging detection assembly 2 and the front end plugging detection assembly 4 is adjusted, meanwhile, the switching ring I on the baffle II on the butting unit II 27 is in sliding sleeve joint with the limiting groove on the driving unit II 19, the switching ring I and the rotating shaft II are sealed, the sealing rod in the switching ring II on the baffle III seals the driving groove on the driving unit III 110, the sampling mechanism 3 is not moved when the driving unit I18 is started, the scraping mechanism I23 and the scraping mechanism II 44 are not rotated to scrape, and then the two ends of the detection hole are plugged by the air bags 29 and the air bags II 46, and a closed detection cavity is formed.
When detecting the gas in the detection hole, when detecting the detection hole in a horizontal state, the first trigger extraction mechanism 24 and the second trigger extraction mechanism 45 positioned at the top of the housing 21 and the box 41 are not triggered when no medium is conducted, and the first trigger extraction mechanism 24 and the second trigger extraction mechanism 45 at the top are indicated to have excessive air in the detection hole, so that the gas needs to be extracted and the medium is filled; when the inclined detection hole is detected, the first trigger extraction mechanism 24 or the second trigger extraction mechanism 45 at the uppermost position is not triggered when no medium is conducted, and the first trigger extraction mechanism 24 or the second trigger extraction mechanism 45 at the top position indicates that the air in the detection hole is too much and needs to be extracted to fill the medium, and the air in the detection hole is extracted by the first air pipe at the moment, the first water pipe conveys the detection medium into the detection hole and supplements the overflow-permeated detection medium.
Meanwhile, when detecting the gas in the detection hole, a motor II of a driving mechanism II 19 is started to drive a rotating shaft II to rotate, then the rotating shaft II drives a movable sleeve 238 which is in sliding connection with a limiting groove on the rotating shaft II to rotate, the movable sleeve 238 drives a bevel gear III to rotate, then a bevel gear ring 236 is driven by the bevel gear II, a rotating rod and the bevel gear I to rotate, then a rotating plate II 232 is rotated, a rotating plate I231 is rotated, so that a supporting rod 233 moves, and then a scraper 235 scrapes away foreign matters on a trigger unit along with the movement of a scraper mounting plate 234.
When scraping, in order to avoid the blocking and conduction of the scraping plate 235, the thickness of the scraping plate 235 is smaller than the gap between the top transverse conducting strip 241 and the conducting block two 243, the thickness of the scraping plate 235 is smaller than the gap between the bottom transverse conducting strip 244 and the conducting block one 242, after the scraping plate 235 clears away the foreign matters adhered to the surfaces of the top transverse conducting strip 241, the conducting block two 243, the bottom transverse conducting strip 244 and the conducting block one 242, when the medium water surface is higher than the top of the triggering unit, the triggering unit is conducted to form a triggering signal, and when the medium water surface is lower than the top of the triggering unit, the triggering unit is not conducted to form a triggering signal.
When the sampling assembly 3 performs sampling, the motor I on the driving unit III 110 is started, the driving unit I18 is used for driving the fixed disc 31 to move along the length direction of the supporting tube 13, and when the fixed disc 13 moves to a preset position, the ultrasonic transmitting probe and the ultrasonic receiving probe are used for transmitting and receiving ultrasonic waves, so that detection information is acquired, and detection is performed without adopting a mode of adjusting an air bag back and forth, inflating and deflating, injecting water and pumping and adjusting a detection position.
The design changes the traditional detection construction mode, performs disposable blocking according to the depth of the detection hole, detects the air state in the detection hole in real time, supplements the detection medium permeated by overflow in time, and reduces the occurrence of inaccurate detection caused by too few detection mediums; according to the depth of the detection hole, the blocking position is adjusted, so that the installation operation of the detection holes with different depths is realized, and the detection device is suitable for detection operations under different conditions; the air state inside the detection holes with different inclination angles can be detected, so that the detection holes with different inclination states can be ensured to be timely supplemented with detection media during detection; the detection mode of traditional back and forth shutoff switching, inflation and deflation and water injection and pumping is changed, detection operation on different positions of the detection hole is realized when the detection medium is supplemented in real time through disposable shutoff, the operation difficulty of detection personnel is reduced, and the detection efficiency is improved.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (10)
1. The surrounding rock crack detection device for geotechnical engineering is characterized by comprising a support component, wherein the end part of the support component is fixedly connected with a front end plugging detection component, and one side of the front end plugging detection component is sequentially provided with a sampling component and a rear end plugging detection component which are connected with the support component;
the support assembly comprises a bearing pipe, a front end plugging plate is fixedly sleeved on the outer ring at one end of the bearing pipe, a rear end plugging plate is fixedly sleeved on the outer ring at the other end of the bearing pipe, a support pipe positioned on the outer ring of the bearing pipe is fixedly connected between the front end plugging plate and the rear end plugging plate, the support pipe penetrates through a first guide channel, a second guide channel and a third guide channel which are distributed between the front end plugging plate and the rear end plugging plate, the first guide channel, the second guide channel and the third guide channel are all arranged along the length direction of the support pipe, side baffles fixedly connected with the bearing pipe are fixedly connected to two sides of the openings of the first guide channel, the second guide channel and the third guide channel, a driving unit I movably sleeved with the rear end plugging plate is arranged in the first guide channel, a driving unit II movably sleeved with the rear end plugging plate is arranged in the guide channel, and a driving unit III movably sleeved with the rear end plugging plate is arranged in the guide channel;
the rear end plugging detection assembly comprises a housing which is sleeved on an outer ring of the support tube in a sliding manner, one side of the housing, which is close to the sampling assembly, is provided with a first installation groove of the annular structure, the first installation groove is connected with a first scraping mechanism which is movably sleeved with the support tube, the top and the bottom of one side of the housing, which is close to the sampling assembly, are respectively provided with a first triggering extraction mechanism, the outer ring of the housing is fixedly sleeved with an air bag I, a conveying sleeve I for accommodating a cable duct is arranged in the housing, a first butt joint unit, a second butt joint unit and a third butt joint unit which are sequentially distributed are fixedly connected with an inner ring of the housing, the first butt joint unit is connected with the first driving unit, the second butt joint unit is connected with the second driving unit, and the third butt joint unit is connected with the third driving unit;
the sampling assembly comprises a fixed disc which is sleeved on the outer ring of the supporting tube in a sliding manner, wherein the inner ring of the fixed disc is fixedly connected with a fourth butting unit, a fifth butting unit and a sixth butting unit which are distributed in sequence, the fourth butting unit is connected with the first driving unit, the fifth butting unit is connected with the second driving unit, and the sixth butting unit is connected with the third driving unit;
the front end shutoff detection assembly comprises a box body of a disc-shaped structure, a second installation groove which is coaxially arranged on one side, close to the sampling assembly, of the box body is provided with a second scraping mechanism which is in sliding sleeve joint with the outer ring of the supporting tube, an extension rod fixedly connected with the front end shutoff plate is fixedly connected to the inner side wall of the end portion of the box body, a second triggering extraction mechanism is arranged on the top and the bottom, close to one side of the sampling assembly, of the box body, an air bag is fixedly sleeved on the outer side of the box body, and a second conveying sleeve for accommodating a cable pipeline is arranged in the box body.
2. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein the first driving unit comprises a first rotating shaft movably sleeved with the front end plugging plate and the rear end plugging plate, a driving groove of a spiral structure arranged along the length direction of the first rotating shaft is formed in the outer ring of the first rotating shaft, the first rotating shaft is connected with the first abutting unit and the fourth abutting unit, the second driving unit comprises a second rotating shaft movably sleeved with the front end plugging plate and the rear end plugging plate, a limiting groove arranged along the length direction of the second rotating shaft is formed in the outer ring of the second rotating shaft, the cross section of the limiting groove is of a regular polygon structure, the second rotating shaft is connected with the second abutting unit and the fifth abutting unit, and the third driving unit is consistent with the first driving unit.
3. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein the first butt joint unit comprises a first baffle fixedly connected with an inner ring of a housing, the first baffle is connected with a side baffle and a bearing pipe in a sliding manner, a through hole I connected with the first driving unit in a sliding manner is formed in the first baffle, a pushing rod I connected with the first driving unit in a sliding manner is fixedly connected with the inner ring of the first through hole, the second butt joint unit comprises a second baffle fixedly connected with the inner ring of the housing, the second baffle is connected with the side baffle and the bearing pipe in a sliding manner, the second baffle is movably sleeved with a transfer ring I connected with the second driving unit in a sliding manner, the third baffle is connected with the third baffle in a sliding manner, a sealing rod connected with the third driving unit in a sliding manner is movably sleeved with the second baffle, the second butt joint unit is consistent with the fifth butt joint unit in a structure, the sixth butt joint unit is consistent with the first butt joint unit in a structure, and the third butt joint unit is consistent with the fourth butt joint unit in a structure.
4. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein the scraping mechanism I comprises a first rotating plate with an annular structure which is movably sleeved with the mounting groove I, the first rotating plate is movably sleeved with the outer ring of the supporting tube, one side, close to the housing, of the first rotating plate is fixedly connected with a second rotating plate with the annular structure, the outer ring of the first rotating plate is fixedly connected with a supporting rod, the other end of the supporting rod is fixedly connected with a scraper mounting plate, the scraper mounting plate is fixedly connected with a scraper, one end inner ring of the second rotating plate extending into the housing is fixedly sleeved with a bevel gear ring, the bevel gear ring is meshed with a switching unit, the switching unit is connected with a movable sleeve which is in sliding connection with the second driving unit, the outer ring of the movable sleeve is movably sleeved with a support frame with an L-shaped structure which is fixedly connected with the housing, and the scraping mechanism I is consistent with the structure of the second scraping mechanism.
5. The geotechnical engineering surrounding rock crack detection device according to claim 4, wherein the switching unit comprises a first bevel gear meshed with the bevel gear ring, a rotary rod is fixedly sleeved on an inner ring of the first bevel gear, a transverse plate fixedly connected with the housing is movably sleeved on an outer ring of the rotary rod, a second bevel gear meshed with the outer ring of the rotary rod, and a third bevel gear fixedly sleeved with the movable sleeve is meshed with one side of the second bevel gear.
6. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein the first trigger extraction mechanism comprises a trigger unit fixedly connected to the housing, the extraction unit is arranged on one side, far away from the supporting tube, of the trigger unit, the trigger unit comprises a top transverse conducting strip fixedly sleeved on the housing, a first conducting block integrally arranged is fixedly connected to the bottom of one end of the top transverse conducting strip, a second conducting block positioned on the housing is arranged at the other end of the top transverse conducting strip, a bottom transverse conducting strip integrally arranged is fixedly connected to the bottom of the second conducting block, and the top transverse conducting strip and the bottom transverse conducting strip are arranged in parallel and reserved with a gap; the extraction unit comprises an air pipe I and a water pipe I which are fixedly sleeved with the housing.
7. The geotechnical engineering surrounding rock crack detection device according to claim 6, wherein the conductive posts are fixedly connected to one ends of the top transverse conductive strip and the bottom transverse conductive strip extending into the housing, and the conductive posts are connected with a first cable.
8. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein sensors distributed in an array are embedded in the outer ring of the fixed disc, and a conveying sleeve three for cable storage, which is in sliding sleeve connection with the first butt joint unit and the rear end plugging plate, is fixedly connected to one side of the fixed disc.
9. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein the second conveying sleeve is of an L-shaped structure, the second conveying sleeve is in sliding sleeve joint with the second butt joint unit and the rear end plugging plate, the first air bag is communicated with the second air pipe fixedly connected with the housing, and the second air bag is communicated with the third air pipe fixedly connected with the box body.
10. The geotechnical engineering surrounding rock crack detection device according to claim 1, wherein scales arranged along the length direction of the outer ring of the support tube are arranged, and a handle is fixedly connected with the outer ring of one end, far away from the front end plugging detection assembly, of the support tube.
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