CN115031603A - Geological crack measuring device and using method thereof - Google Patents
Geological crack measuring device and using method thereofDownload PDFInfo
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- CN115031603A CN115031603ACN202210636771.4ACN202210636771ACN115031603ACN 115031603 ACN115031603 ACN 115031603ACN 202210636771 ACN202210636771 ACN 202210636771ACN 115031603 ACN115031603 ACN 115031603A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
Technical Field
The application relates to the field of engineering geology monitoring, in particular to a geological crack measuring device and a using method thereof.
Background
The engineering construction, excavation, blasting, mining and other human activities often cause the destruction and instability of rock-soil mass, thereby causing the occurrence of surface cracks. Cracks usually appear in a rock-soil body stress concentration area or a place with lower strength, the generation of the cracks can be a precursor of geological disasters such as ground subsidence, collapse and the like, and the development and the change of the cracks naturally influence normal engineering construction, production, traffic roads and surface buildings. The change trend of the engineering geological crack is mastered, and the engineering geological crack is an important basis for engineering technicians to take corresponding precautionary and reinforcement measures in time, so that the deformation of the engineering geological crack needs to be monitored.
Current geological crack measuring device includes two sets of pegs graft in the peg graft pole on ground and the connecting plate of fixed connection between two sets of peg graft poles usually, be provided with scale and two sets of gliding sliding plates on the connecting plate, when measuring the geological crack, insert two sets of sliding plates in the crack, through two sets of sliding plates of sliding, make one side that two sets of sliding plates kept away from each other and the laminating of the cracked inner wall of geology, then read out the distance between two sets of sliding plates according to the scale, thereby the realization is measured the geological crack.
In view of the above-mentioned related art, the inventors found that the following drawbacks exist: the back is usually a whole after being connected between inserted bar and the connecting plate to the whole volume of geological crack measuring device is great, need adopt great box to pack it in packing or the transportation to it, leads to not portable.
Disclosure of Invention
In order to facilitate packing and carrying geological crack measuring device, this application provides a geological crack measuring device.
The application provides a geological crack measuring device adopts following technical scheme:
a geological crack measuring device comprises two groups of parallel insertion rods and a sliding plate, and also comprises a telescopic rod, a bending positioning component and a lengthening component which are arranged between the two groups of insertion rods; the bending positioning assembly is arranged between the insertion rod and the telescopic rod, and the insertion rod is rotatably connected with the telescopic rod through the bending positioning assembly; the extension subassembly includes the multiunit adapter sleeve, the adapter sleeve can be dismantled and set up on the telescopic link, set up the spout that sets up along telescopic link length direction on the adapter sleeve, sliding plate and spout slip adaptation, all be provided with the scale that sets up along telescopic link length direction on the adapter sleeve.
Through adopting above-mentioned technical scheme, before measuring the crack, to installing the adapter sleeve on the telescopic link and making the telescopic link extension, two sets of sliding plates slip the back in the spout on the adapter sleeve, can adjust the distance between two sets of sliding plates, so that geological crack measuring device can measure the crack of different width, after the measurement is accomplished, make through buckling positioning assembly and can realize folding through rotating between peg graft pole and the telescopic link, thereby the length at geological crack measuring device's both ends has been reduced, the telescopic link makes the whole volume of geological crack measuring device reduce simultaneously, so that pack and carry the device wholly.
Optionally, the bending positioning assembly comprises a threaded rod, a limiting sleeve and a threaded sleeve, one end of the threaded rod is rotatably connected to one end of the telescopic rod, the insertion rod is detachably connected to the threaded rod, the limiting sleeve and the threaded sleeve are sleeved on the threaded rod, the threaded sleeve is located at one end, away from the telescopic rod, of the limiting sleeve, the threaded sleeve is in threaded connection with the threaded rod, and the limiting sleeve is movably abutted to the end portion of the telescopic rod.
Through adopting above-mentioned technical scheme, the threaded rod rotates the back and is located the same axis with the telescopic link, rotates the thread bush again and can drive the stop collar and remove, and the thread bush restricts the position of stop collar, mutual butt between stop collar and the telescopic link to can make the threaded rod angularly fixed after rotating, make the whole expansion of geological crack measuring device, so that install it in ground after to the crack measure.
Optionally, one end of the limiting sleeve, which is close to the telescopic rod, is provided with a limiting block, and the telescopic rod is provided with a limiting groove which is in plug-in fit with the limiting block.
Through adopting above-mentioned technical scheme, during stop collar and telescopic link butt, make the stopper on the stop collar insert the spacing groove on the telescopic link to make and form wholly between stop collar and the telescopic link, make the threaded rod rotate the back more stable, improve the effect of stop collar to the angle fixation of threaded rod, and then confirm the relative position of telescopic link and inserted bar, be convenient for install the use to the device.
Optionally, a connecting groove in plug-in fit with the limiting sleeve is formed in the threaded sleeve, an opening of the connecting groove is gradually enlarged from one side close to the threaded sleeve to one side far away from the threaded sleeve, and the limiting sleeve is rotatably connected with the threaded sleeve.
Through adopting above-mentioned technical scheme, stop collar and thread bush connect into a whole, and the stop collar can rotate in the inside of spread groove, makes its motion on the threaded rod through rotating the thread bush to can drive stop collar simultaneous movement, need not to rotate the manual position to the stop collar behind the thread bush and adjust, it is more convenient to make the device installation and dismantlement.
Optionally, a through hole for the insertion rod to penetrate is formed in the threaded rod, a threaded hole communicated with the through hole is formed in the threaded rod, and a jackscrew movably abutted to the insertion rod is connected to the threaded hole in an internal thread mode.
Through adopting above-mentioned technical scheme, rotate the jackscrew and can make it and peg graft the pole contact or break away from to can adjust the position of threaded rod and peg graft pole contact, thereby can make behind the peg graft pole inserts the soil layer, adjust the telescopic link height on the horizontal direction, be convenient for make the sliding plate insert the crack in measure.
Optionally, the extension subassembly still includes two sets of locating levers, and is two sets of the locating lever set up respectively in the both ends of telescopic link, locating lever and telescopic link parallel arrangement are two sets of along the length direction sliding connection of telescopic link between the locating lever, set up the draw-in groove with the locating lever grafting adaptation on the link sleeve.
Through adopting above-mentioned technical scheme, when the telescopic link extended, two sets of locating levers moved to the both ends of telescopic link respectively, inserted the adapter sleeve again and locate the locating lever to be convenient for increase the installation to the adapter sleeve, and comparatively stable after the installation.
Optionally, one end of the connecting sleeve is provided with an inserting block, and the other end of the connecting sleeve is provided with an inserting groove adapted to the inserting block in an inserting manner
By adopting the technical scheme, when two groups of adjacent connecting sleeves are connected, the inserting block on one group of connecting sleeves is inserted into the inserting groove on the other group of connecting sleeves, so that a whole is formed between the two adjacent groups of connecting sleeves, the connecting is more stable, and the mounting effect is better.
Optionally, the telescopic rod is provided with an elastic member for driving the telescopic rod to contract.
By adopting the technical scheme, the connecting sleeves are inserted into the positioning rods and then are installed, and the elastic pieces enable the telescopic rods to contract, so that the multiple groups of connecting sleeves can be clamped and fixed, the connection integrity between the multiple groups of connecting sleeves is better, and the sliding plate can slide conveniently.
Optionally, the sliding plate is rotatably connected with a measuring plate, and a rotation axis of the measuring plate is parallel to the insertion rod.
Through adopting above-mentioned technical scheme, geological crack measuring device rotates the measurement board when placing storing, makes two sets of measurement boards form a plane to further reduce the space that occupies, be convenient for place and store.
The application provides a method for using geological crack measuring device adopts following technical scheme: the method comprises the following steps:
the method comprises the following steps: the threaded rod is rotated to be arranged coaxially with the telescopic rod, the threaded sleeve is rotated to push the limiting sleeve to move, the limiting block is inserted into the limiting groove, and the two groups of inserting rods are unfolded;
step two: the telescopic rod is pulled to drive the two groups of positioning rods to slide and extend, then the connecting sleeve is arranged on the positioning rods, the inserting block on the connecting sleeve is inserted into the inserting groove on the adjacent connecting sleeve, and after the telescopic rod is contracted by the elastic part, the multiple groups of connecting sleeves are clamped and fixed, so that a certain distance is ensured between the two groups of inserting rods;
step three: inserting the inserting rod into the soil layer to ensure that the telescopic rod is vertical to the geological crack to be measured;
step four: rotating the jackscrew, adjusting the connecting position of the threaded rod and the inserting rod so as to adjust the horizontal height of the telescopic rod, and rotating the measuring plates to insert the two groups of measuring plates into the geological crack;
step five: and two groups of sliding plates slide in the sliding grooves, so that the side walls of the measuring plate are attached to the side walls of the geological crack, and the distance between the two groups of sliding plates is calculated according to the number of the connecting sleeves between the two groups of sliding plates and the positions of the sliding plates on the connecting sleeves.
To sum up, the application comprises at least the following beneficial technical effects:
1. when the device is used, the threaded rod is positioned on the same axis by rotating the threaded rod, the threaded sleeve can be rotated to drive the limiting sleeve to move, the threaded sleeve limits the position of the limiting sleeve, the limiting sleeve and the telescopic rod are mutually abutted, so that the rotated angle of the threaded rod is fixed, the telescopic rod is extended to drive the positioning rod to move, the connecting sleeve is inserted on the positioning rod, the elastic piece pulls the telescopic rod to stretch, the position of the connecting sleeve is fixed, the overall length of the device is increased, and larger cracks can be conveniently measured;
2. after the measurement is accomplished, make through the locating component of buckling and realize folding through rotating between peg graft pole and the telescopic link to the length at geological crack measuring device's both ends has been reduced, the telescopic link makes the whole volume of geological crack measuring device reduce simultaneously, so that pack and carry the device wholly.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of the portion A of FIG. 2;
FIG. 4 is a schematic diagram of the overall structure of an embodiment of the present application showing an extension assembly.
Reference numerals: 1. a plug rod; 2. a sliding plate; 21. measuring a plate; 3. a telescopic rod; 31. a limiting groove; 4. a bending positioning component; 41. a threaded rod; 411. perforating; 412. a threaded hole; 413. carrying out top thread; 42. a limiting sleeve; 421. a limiting block; 43. a threaded sleeve; 431. connecting grooves; 5. lengthening the assembly; 51. connecting sleeves; 511. a chute; 512. a card slot; 513. an insertion block; 514. inserting grooves; 52. a graduated scale; 53. positioning a rod; 54. an elastic member.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses geological crack measuring device.
Referring to fig. 1, a ground matter crack measuring device includes two sets ofpeg graft pole 1, two sets of slidingplate 2,telescopic link 3, buckle locatingcomponent 4 andextension subassembly 5,telescopic link 3 sets up between two sets ofpeg graft poles 1 so that adjust distance between two sets ofpeg graft poles 1, length is fixed after can makingtelescopic link 3 extend throughextension subassembly 5, thereby can increase distance between two sets ofpeg graft poles 1, two sets of slidingplate 2 slide on the peg graft board, be convenient for measure great crack, relative rotation takes place through bucklinglocating component 4 andtelescopic link 3 forpeg graft pole 1, thereby can be convenient for fold after the device uses, reduce the holistic volume of device.
Referring to fig. 1-3, in order to facilitate the angle adjustment between theinsertion rod 1 and thetelescopic rod 3, mounting plates are integrally formed at both ends of thetelescopic rod 3, two sets of bending assemblies are provided, each bendingpositioning assembly 4 comprises a threadedrod 41, a limitingsleeve 42 and a threadedsleeve 43, one end of each threadedrod 41 is rotatably connected with a connecting rod, one end of each connecting rod, which is far away from the threadedrod 41, is rotatably connected to the mounting plate at one end of thetelescopic rod 3, so that the threadedrod 41 can rotate relative to thetelescopic rod 3, and the volume of the device can be reduced by rotating the threadedrod 41 when the device is not in use, so that the device can be packaged and carried conveniently;
in order to facilitate the positioning of the rotated threadedrod 41, the limitingsleeve 42 and the threadedsleeve 43 are sleeved on the threadedrod 41, the threadedsleeve 43 is positioned at one end of the limitingsleeve 42, which is far away from thetelescopic rod 3, the threadedsleeve 43 is in threaded connection with the threadedrod 41, the limitingsleeve 42 is movably abutted against the end part of thetelescopic rod 3, after the threadedrod 41 is rotated to be positioned on the same axis with thetelescopic rod 3, the threadedsleeve 43 is rotated to abut the limitingsleeve 42 against the mounting plate, so that the angle of the threadedrod 41 is fixed;
in order to further improve the fixing effect of the threadedrod 41, one end of thelimit sleeve 42, which is close to thetelescopic rod 3, is fixedly connected with alimit block 421, alimit groove 31 which is in splicing fit with thelimit block 421 is formed in a mounting plate at the end part of thetelescopic rod 3, and when thelimit sleeve 42 is abutted against the mounting plate, thelimit block 421 is inserted into thelimit groove 31, so that the threadedrod 41 and thetelescopic rod 3 are integrated, and the fixing effect is better;
in order to facilitate the movement of the threadedsleeve 43 and simultaneously drive thestop collar 42 to move, the threadedsleeve 43 is provided with a connectinggroove 431 in plug fit with thestop collar 42, the opening of the connectinggroove 431 is gradually enlarged from one side close to the threadedsleeve 43 to one side far away from the threadedsleeve 43, thestop collar 42 is rotatably connected with the threadedsleeve 43, thestop collar 42 and the threadedsleeve 43 are connected into a whole, the threadedsleeve 43 can move on the threadedrod 41 when rotating, so that thestop collar 42 is simultaneously driven to move, thestop collar 42 is conveniently abutted against or separated from the mounting plate, and the threadedsleeve 43 and thestop collar 42 do not need to be respectively adjusted during installation or disassembly;
Referring to fig. 1 and 4, in order to facilitate the fixing after adjusting the length of the telescopic rod 3, the extension assembly 5 includes a plurality of sets of connecting sleeves 51 and two sets of positioning rods 53, the connecting sleeves 51 are detachably disposed on the telescopic rod 3, and are fixed by the length of the telescopic rod 3, in this embodiment, the two sets of positioning rods 53 are respectively and fixedly connected to the mounting plates at two ends of the telescopic rod 3, and the positioning rods 53 are disposed in parallel with the telescopic rod 3, the two sets of positioning rods 53 are slidably connected along the length direction of the telescopic rod 3, when the telescopic rod 3 extends, the two sets of positioning rods 53 slide to lengthen the whole formed by the two sets of positioning rods 53, the connecting sleeve 51 is provided with a slot 512 adapted to the positioning rod 53, the connecting sleeve 51 is inserted onto the positioning rod 53 to complete the mounting of the connecting sleeves 51, an elastic member 54 is fixedly connected between the two sets of mounting plates, in this embodiment, the elastic member 54 is a spring, and the axial direction of the spring is the same as the extension direction of the telescopic rod 3, after the connecting sleeve 51 is installed, the spring enables the telescopic rod 3 to contract, so that the connecting sleeves 51 on the positioning rods 53 are connected and fixed, in order to enable the plurality of groups of connecting sleeves 51 on the positioning rods 53 to be more stable after connection, one end of each connecting sleeve 51 is fixedly connected with an inserting block 513, the other end of each connecting sleeve 51 is provided with an inserting groove 514 which is matched with the inserting block 513 in an inserting manner, after the plurality of groups of connecting sleeves 51 are installed, the inserting blocks 513 on one group of connecting sleeves 51 are inserted into the inserting grooves 514 on the adjacent connecting sleeves 51, and the installing plates limit the two ends of the plurality of groups of connecting sleeves 51, so that the plurality of groups of connecting sleeves 51 are better in integrity and more stable in installation;
in order to measure the crack conveniently, the connectingsleeve 51 is provided with a slidinggroove 511 arranged along the length direction of thetelescopic rod 3, the slidingplates 2 are matched with the slidinggroove 511 in a sliding manner, the connectingsleeve 51 is fixedly connected with a graduatedscale 52 arranged along the length direction of thetelescopic rod 3, so that the sliding distance of the slidingplates 2 and the distance between the two groups of slidingplates 2 can be read conveniently, meanwhile, the slidingplates 2 are rotatably connected with the measuringplates 21, the rotating axes of the measuringplates 21 are parallel to the insertingrods 1, and the two groups of measuringplates 21 can be rotated to be positioned on the same plane when being stored, so that the measuring plates are convenient to store, and the two groups of measuringplates 21 are rotated to be parallel to each other when being reused, so that the measuring is convenient.
The embodiment of the application also discloses a use method of the geological crack measuring device.
A use method of a geological fracture measuring device comprises the following steps:
the method comprises the following steps: the threadedrod 41 is rotated to enable the threadedrod 41 and thetelescopic rod 3 to be coaxially arranged, the threadedsleeve 43 is rotated to push the limitingsleeve 42 to move, the limitingblock 421 is inserted into the limitinggroove 31, and the two groups of insertingrods 1 are unfolded;
step two: pulling thetelescopic rod 3 to drive the two groups ofpositioning rods 53 to slide and extend, sleeving the connectingsleeve 51 on thepositioning rods 53, inserting the insertingblock 513 on the connectingsleeve 51 into the insertinggroove 514 on the adjacent connectingsleeve 51, and clamping and fixing the groups of connectingsleeves 51 after thetelescopic rod 3 is contracted by theelastic part 54 so as to ensure a certain distance between the two groups of insertingrods 1;
step three: inserting the insertingrod 1 into a soil layer to ensure that thetelescopic rod 3 is vertical to a geological crack to be measured;
step four: rotating thejackscrew 413, adjusting the connecting position of the threadedrod 41 and the insertingrod 1 so as to adjust the horizontal height of thetelescopic rod 3, and rotating the measuringplates 21 to insert the two groups of measuringplates 21 into the geological crack;
step five: and (3) sliding the two groups of slidingplates 2, wherein the slidingplates 2 slide in the slidinggrooves 511 to ensure that the side walls of the measuringplate 21 are attached to the side walls of the geological crack, and the distance between the two groups of slidingplates 2 is calculated according to the number of the connectingsleeves 51 between the two groups of slidingplates 2 and the positions of the slidingplates 2 on the connectingsleeves 51.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a ground crack measuring device, includes two sets of spliced poles (1) and sliding plate (2) that are parallel to each other, its characterized in that: the telescopic rod (3), the bending positioning component (4) and the lengthening component (5) are arranged between the two groups of inserting rods (1);
the bending positioning component (4) is arranged between the insertion rod (1) and the telescopic rod (3), and the insertion rod (1) is rotatably connected with the telescopic rod (3) through the bending positioning component (4);
lengthening subassembly (5) include multiunit adapter sleeve (51), adapter sleeve (51) can be dismantled and set up on telescopic link (3), spout (511) that set up along telescopic link (3) length direction are seted up on adapter sleeve (51), sliding plate (2) and spout (511) slip adaptation, all be provided with scale (52) that set up along telescopic link (3) length direction on adapter sleeve (51).
2. A geological fracture measuring device according to claim 1, characterized in that: the bending positioning component (4) comprises a threaded rod (41), a limiting sleeve (42) and a threaded sleeve (43), one end of the threaded rod (41) is rotatably connected with one end of the telescopic rod (3), the insertion rod (1) is detachably connected onto the threaded rod (41), the limiting sleeve (42) and the threaded sleeve (43) are both sleeved on the threaded rod (41), the threaded sleeve (43) is located at one end, away from the telescopic rod (3), of the limiting sleeve (42), the threaded sleeve (43) is in threaded connection with the threaded rod (41), and the limiting sleeve (42) is movably abutted to the end of the telescopic rod (3).
3. A geological fracture measuring device as defined in claim 2, wherein: the limiting sleeve (42) is close to one end of the telescopic rod (3) and is provided with a limiting block (421), and a limiting groove (31) matched with the limiting block (421) in an inserting mode is formed in the telescopic rod (3).
4. A geological fracture measuring device as defined in claim 2, wherein: offer on the thread bush (43) with spread groove (431) of stop collar (42) grafting adaptation, the opening of spread groove (431) is by being close to thread bush (43) one side to keeping away from one side direction grow gradually of thread bush (43), stop collar (42) and thread bush (43) are rotated and are connected.
5. A geological fracture measuring device as defined in claim 2, wherein: the threaded rod (41) is provided with a through hole (411) for the insertion rod (1) to penetrate through, the threaded rod (41) is provided with a threaded hole (412) communicated with the through hole (411), and the threaded hole (412) is internally connected with a jackscrew (413) movably abutted to the insertion rod (1).
6. A geological fracture measuring device as defined in claim 1, wherein: the lengthening assembly (5) further comprises two groups of positioning rods (53), the two groups of positioning rods (53) are respectively arranged at two ends of the telescopic rod (3), the positioning rods (53) are arranged in parallel with the telescopic rod (3), the two groups of positioning rods (53) are connected in a sliding mode along the length direction of the telescopic rod (3), and a clamping groove (512) matched with the positioning rods (53) in an inserting mode is formed in the connecting sleeve (51).
7. A geological fracture measuring device as claimed in claim 6, wherein: one end of the connecting sleeve (51) is provided with an inserting block (513), and the other end of the connecting sleeve (51) is provided with an inserting groove (514) matched with the inserting block (513) in an inserting mode.
8. A geological fracture measuring device as claimed in claim 6, wherein: the telescopic rod (3) is provided with an elastic piece (54) for driving the telescopic rod to contract.
9. A geological fracture measuring device as defined in claim 1, wherein: the sliding plate (2) is rotatably connected with a measuring plate (21), and the rotating axis of the measuring plate (21) is parallel to the inserting rod (1).
10. A use method of a geological crack measuring device is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: the threaded rod (41) is rotated to enable the threaded rod (41) and the telescopic rod (3) to be arranged coaxially, the threaded sleeve (43) is rotated to push the limiting sleeve (42) to move, the limiting block (421) is inserted into the limiting groove (31), and the two groups of inserting rods (1) are unfolded;
step two: the telescopic rod (3) is pulled to drive the two groups of positioning rods (53) to slide and extend, the connecting sleeve (51) is sleeved on the positioning rods (53), the inserting block (513) on the connecting sleeve (51) is inserted into the inserting groove (514) on the adjacent connecting sleeve (51), and the elastic piece (54) enables the telescopic rod (3) to contract and then clamp and fix the groups of connecting sleeves (51), so that a certain distance is ensured between the two groups of inserting rods (1);
step three: inserting the inserting rod (1) into a soil layer to ensure that the telescopic rod (3) is vertical to the geological crack to be measured;
step four: rotating the jackscrew (413), adjusting the connecting position of the threaded rod (41) and the inserting rod (1) so as to adjust the horizontal height of the telescopic rod (3), and rotating the measuring plates (21) to insert the two groups of measuring plates (21) into the geological crack;
step five: and two groups of sliding plates (2) are slid, the sliding plates (2) slide in the sliding grooves (511), so that the side walls of the measuring plate (21) are attached to the side walls of the geological crack, and the distance between the two groups of sliding plates (2) is calculated according to the number of connecting sleeves (51) between the two groups of sliding plates (2) and the positions of the sliding plates (2) on the connecting sleeves (51).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210636771.4ACN115031603B (en) | 2022-06-07 | 2022-06-07 | Geological fracture measuring device and application method thereof |
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| CN202210636771.4ACN115031603B (en) | 2022-06-07 | 2022-06-07 | Geological fracture measuring device and application method thereof |
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| CN115031603B CN115031603B (en) | 2024-10-18 |
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| CN115711852A (en)* | 2022-11-25 | 2023-02-24 | 浙江省工程勘察设计院集团有限公司 | Automatic side slope crack monitoring device and hoisting method thereof |
| CN117928343A (en)* | 2024-03-22 | 2024-04-26 | 山东乾通重工科技有限公司 | Steel structure welding seam measuring tool and using method thereof |
| CN118009970A (en)* | 2024-04-10 | 2024-05-10 | 广信检测认证集团有限公司 | Crack three-way deformation measuring instrument and use method thereof |
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