CN116678376B - Monitoring device for settlement of geotechnical engineering construction soil layer - Google Patents
Monitoring device for settlement of geotechnical engineering construction soil layer Download PDFInfo
- Publication number
- CN116678376B CN116678376B CN202310966553.1A CN202310966553A CN116678376B CN 116678376 B CN116678376 B CN 116678376B CN 202310966553 A CN202310966553 A CN 202310966553A CN 116678376 B CN116678376 B CN 116678376B
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- Prior art keywords
- inner tube
- sleeve
- magnetic
- ball
- target rod
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- 239000002689 soil Substances 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 238000004062 sedimentation Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 206010063659 Aversion Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Abstract
The invention relates to the technical field of settlement monitoring, in particular to a monitoring device for settlement of a geotechnical engineering construction soil layer. This kind of monitoring devices for geotechnical engineering construction soil layer subsides, frictional force between ball and the sleeve pipe is greater than the frictional force between target pole and the inner tube, because the inner tube sinks and is slower than the target pole, after the target pole is sunk, the inner tube sinks again and overlaps on the target pole, the top of magnetic stripe reaches the inner tube top relatively this moment, and exert repulsion to magnetic sheet and pin, it locks to the ball to push it, the ball can't roll between inner tube and sleeve pipe, increase the frictional force of inner tube and sleeve pipe, make inner tube and sleeve pipe and lock, so through delaying the inner tube to move down, realize the locking to the current subsidence volume of target pole and inner tube, make the data of subsidence volume obtain preserving, avoid sleeve pipe and socket fixed position to sink again and lead to the fixed point aversion, and the condition of corresponding data inefficacy.
Description
Technical Field
The invention relates to the technical field of settlement monitoring, in particular to a monitoring device for settlement of a soil layer in geotechnical engineering construction.
Background
Ground subsidence is also known as ground subsidence or subsidence. The method is a local descending motion (or engineering geology phenomenon) of the surface elevation of the crust of the earth due to the consolidation and compression of underground loose strata under the influence of ergonomic activities, and is a main engineering geology problem of various large cities in the world at present. The method is generally characterized by two forms of regional sinking and local sinking, which can cause the inclination of a building and destroy the stability of a foundation, and the coastal city can cause the reverse flow of seawater, thereby greatly influencing the production and life.
When the soft stratum is encountered in geotechnical engineering construction and the operation is carried out on the soft stratum, the ground settlement condition needs to be monitored, and the foundation for controlling the construction progress, determining the loading and unloading time and evaluating the foundation treatment effect is conveniently used according to the actual settlement.
The prior patent (publication number: CN 113218363B) discloses a monitoring device for soil layer settlement in geotechnical engineering construction, which comprises a chassis, the through hole is formed in the inner center shaft of the chassis, a limit post is fixedly connected to the center shaft of the top of the chassis, the limit post is communicated with the through hole, reinforcing ribs are fixedly connected to the outer surface of the limit post in a ring shape, the bottoms of the reinforcing ribs are fixedly connected with the top of the chassis, a sleeve rod is sleeved in the limit post, a cap is arranged at the top of the sleeve rod, when the sleeve rod is placed in the sleeve rod, a spring in a connecting groove presses a jack post, so that the jack post drives balls to approach and contact the inner wall of the sleeve rod, when the soil is settled, the sleeve rod can slide downwards through balls, so that the settlement distance can be conveniently monitored, the balls can contact the sleeve rod, sliding friction is changed into rolling friction, and the monitoring effect is better. The existing monitoring equipment mainly relies on lubricating oil to assist the steel balls to reduce friction force when the side rods move downwards, but contact still exists between the side rods and the loop bars, certain friction force exists, and when the standard points for fixing the loop bars are also sunk, the prior sinking amount cannot be reserved.
In view of the above, we propose a monitoring device for soil layer settlement in geotechnical engineering construction.
Disclosure of Invention
The invention aims to provide a monitoring device for soil layer settlement in geotechnical engineering construction, which aims to solve the problems that in the prior art, the friction force is reduced when a side rod moves downwards mainly by means of lubricating oil assisted steel balls, the side rod still contacts a loop bar, a certain friction force exists, and the prior settlement cannot be reserved when a standard point for fixing the loop bar is also submerged. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a geotechnical engineering construction soil layer subsides and uses monitoring devices, includes the installing support, the fixed socket that is provided with on the installing support, and the upper and lower both ends of socket are the through structure, peg graft in the socket and have the sleeve pipe, and be provided with in the sleeve pipe and hinder the monitor falls.
And an observation groove corresponding to the resistance-reducing monitor is formed in the surface of the sleeve.
Preferably, the resistance-reducing monitor comprises an inner tube which is arranged in the sleeve in a sliding manner, a plurality of groups of grooves are formed in the inner wall of the inner tube, a single group of grooves are symmetrically formed along the inner tube, and magnetic rings are arranged on the grooves of the inner tube.
The inner tube is internally and movably connected with a target rod, and the bottom end of the target rod is fixedly provided with a sedimentation head.
Six caulking grooves are formed in the surface of the target rod, the six caulking grooves are in annular equidistant arrays along the surface of the target rod, magnetic strips are fixedly installed in the caulking grooves, and the magnetic ring applies repulsive force to the magnetic strips to place the target rod in the sleeve.
The sleeve is provided with a delay backstop matched with the magnetic stripe.
Preferably, the delay backstop comprises three groups of inner holes arranged in the sleeve, a single group of inner holes are a plurality of, the three groups of inner holes are positioned on the upper side of the sleeve, and the three groups of inner holes are arranged in an annular array along the sleeve.
The outer end of the inner hole is communicated with the outside, the ball is movably connected in the inner hole, a spring is arranged in the inner hole, and the spring pushes the ball to slide outwards.
The outer end of the inner hole is contracted into a cone opening with a narrow outer part and a wide inner part, the cone opening limits the rolling balls to slide out, and one third part of the rolling balls extends out from the cone opening and is attached to the inner wall of the sleeve.
The inner end of the inner hole is provided with a perforation communicated with the inside of the inner pipe, the perforated inside is connected with a pin in a sliding mode, one end of the pin, opposite to the ball, is provided with a clamping groove for pressing the lock ball, one end of the pin, opposite to the target rod, is fixedly provided with a magnetic sheet, and the magnetic sheet applies repulsive force to the magnetic sheet.
The surface of the inner tube is provided with a warning piece matched with the magnetic stripe.
Preferably, the warning member comprises a plurality of groups of through grooves formed along the surface of the inner tube, and the plurality of groups of through grooves are respectively positioned between two adjacent groups of notch grooves.
The magnetic strip is characterized in that the through groove corresponds to the position of the magnetic strip, a copper sheet is fixedly installed in the through groove, the copper sheet is of an inward bending structure, a magnetic column is fixedly installed on the copper sheet, the magnetic strip applies repulsive force to the magnetic column, and the magnetic column is pushed to deform by repulsive force outwards.
Preferably, the top of the sleeve is clamped with a pipe cap.
Preferably, the surface of the sleeve is provided with scales which are matched with the inner tube along the side of the observation groove.
Preferably, the magnetic stripe sleeve screw is fixedly arranged in the caulking groove.
Preferably, a clamping ring is fixedly arranged on the surface of the pin, and the clamping ring is positioned in the inner hole.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the magnetic ring in the inner tube applies repulsive force to the magnetic stripe, the magnetic stripe of the outer ring array of the target rod is used for restraining the target rod, so that the target rod is positioned at the central axis of the inner tube and cannot be contacted with the inner wall of the inner tube when moving downwards, friction with the inner tube in the sinking process of the target rod is avoided, interference of friction on displacement measurement of the target rod is reduced to the greatest extent, and the method has more immediate response and better accuracy.
According to the invention, the inner tube is connected in a contact sliding manner along the inside of the sleeve through the balls, so that the friction force between the balls and the sleeve is larger than the friction force between the target rod and the inner tube, the inner tube sinks slower than the target rod, after the target rod sinks, the inner tube is further sleeved on the target rod, at the moment, the top end of the magnetic strip relatively reaches the top end of the inner tube, repulsive force is applied to the magnetic strip and the pin, the magnetic strip is pushed to the balls to lock the balls, the balls cannot roll between the inner tube and the sleeve, the friction force between the inner tube and the sleeve is increased, the inner tube and the sleeve are locked, the current sinking amount of the target rod and the inner tube is locked by delaying the inner tube to store sinking amount data, and the situation that the target point is shifted and corresponding data fail due to secondary sinking of the fixed positions of the sleeve and the socket is avoided.
According to the invention, the inner tube sinks slower than the target rod, so that when the target rod slides out of the inner tube, the synchronous moving magnetic strips gradually leave the positions corresponding to the copper sheets from top to bottom, the copper sheets and the magnetic columns on the surfaces of the copper sheets lose thrust, the outwards protruded copper sheets deform inwards to return and make sounds, and meanwhile, after the inner tube sinks later, the return magnetic strips push the copper sheets to deform outwards again to make sounds, so that corresponding sounds for warning are made when the soil layer and the target rod sink, and besides active observation of a user, the sounds are used for prompting real-time occurrence of sinking, so that a better monitoring effect is achieved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a bottom exploded view of the present invention;
FIG. 3 is an exploded view of the sleeve and inner tube of the present invention;
FIG. 4 is an exploded view of the inner tube and subject rod of the present invention;
FIG. 5 is a partial exploded view of the inner tube and subject rod of the present invention;
FIG. 6 is a partial front cross-sectional view of an inner tube of the present invention;
FIG. 7 is an exploded view of the inner tube and ball of the present invention;
fig. 8 is an enlarged view of the invention at a in fig. 7.
In the figure: 1. a mounting bracket; 2. a socket; 3. a sleeve; 4. a resistance-reducing monitor; 41. an inner tube; 42. a groove is formed; 43. a magnetic ring; 44. a target rod; 45. a sedimentation head; 46. a caulking groove; 47. a magnetic stripe; 48. a delay backstop; 481. an inner bore; 482. a ball; 483. a spring; 484. a cone opening; 485. perforating; 486. a pin; 487. a clamping groove; 488. a magnetic sheet; 489. a warning member; 4891. a through groove; 4892. copper sheets; 4893. a magnetic column; 5. the cell was observed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a geotechnical engineering construction soil layer subsides and uses monitoring devices, including installing support 1, fixed being provided with socket 2 on the installing support 1, and the upper and lower both ends of socket 2 are the through structure, peg graft in the socket 2 have sleeve pipe 3, connect the bolt soon on the socket 2, screw up the bolt and fix after sleeve pipe 3 inserts in the socket 2, and be provided with in the sleeve pipe 3 and fall and hinder monitor 4, will fall and hinder monitor 4 and pack into from the bottom of sleeve pipe 3 when using, then insert sleeve pipe 3 socket 2 and install;
an observation groove 5 corresponding to the resistance-reducing monitor 4 is formed in the surface of the sleeve 3, the downward movement amount of the target rod 44 and the inner tube 41 can be seen through the observation groove 5, and the sinking amount is measured and calculated by utilizing the distance between the inner rod and the sleeve 3.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the resistance-reducing monitor 4 includes an inner tube 41 slidably disposed in the sleeve 3, and a plurality of groups of slots 42 are formed on the inner wall of the inner tube 41, the single group of slots 42 are symmetrically disposed along the inner tube 41, and a magnetic ring 43 is disposed in the inner tube 41 of the slots 42;
a target rod 44 is movably connected in the inner tube 41, and a sedimentation head 45 is fixedly arranged at the bottom end of the target rod 44;
six caulking grooves 46 are formed in the surface of the target rod 44, the six caulking grooves 46 are in annular equidistant arrays along the surface of the target rod 44, magnetic strips 47 are fixedly arranged in the six caulking grooves 46, the magnetic rings 43 apply repulsive force to the magnetic strips 47 to put the target rod 44 in the sleeve 3, the sleeve 3 can be made of transparent materials or provided with strip grooves, so that a user can observe the sinking of the target rod 44 through the observation grooves 5 and the sleeve 3, when the land is settled, the settlement head 45 and the inner rod synchronously move downwards along with gravity, in the process, the magnetic rings 43 in the inner tube 41 apply repulsive force to the magnetic strips 47, and the magnetic strips 47 of the outer ring array of the target rod 44 restrict the target rod 44, so that the target rod 44 is positioned at the central axis of the inner tube 41 and cannot contact the inner wall of the inner tube 41 when moving downwards;
the sleeve 3 is provided with a delay backstop 48 which is matched with the magnetic strip 47.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the delay backstop 48 includes three groups of inner holes 481 that are opened inside the casing 3, and the number of the single group of inner holes 481 is several, the three groups of inner holes 481 are located at the upper side of the casing 3, and the three groups of inner holes 481 are arranged in a ring array along the casing 3;
the outer end of the inner hole 481 is communicated with the outside, a ball 482 is movably connected in the inner hole 481, a spring 483 is arranged in the inner hole 481, and the spring 483 pushes the ball 482 to slide outwards;
the outer end of the inner hole 481 is contracted into a conical opening 484 with a narrow outer and a wide inner side, the conical opening 484 limits the sliding out of the ball 482, one third part of the ball 482 extends out of the conical opening 484 and is attached to the inner wall of the sleeve 3, and the inner tube 41 is in contact sliding connection along the inside of the sleeve 3 through the ball 482, so that the friction force between the ball 482 and the sleeve 3 is larger than the friction force between the target rod 44 and the inner tube 41, the inner tube 41 sinks to be slower than the target rod 44, and after the target rod 44 sinks to be over, the inner tube 41 sinks to be sleeved on the target rod 44;
the inner end of the inner hole 481 is provided with a perforation 485 communicated with the inside of the inner tube 41, the inside of the perforation 485 is connected with a pin 486 in a sliding way, one end of the pin 486 opposite to the ball 482 is provided with a clamping groove 487 for pressing and locking the ball 482, one end of the pin 486 opposite to the target rod 44 is fixedly provided with a magnetic sheet 488, the magnetic sheet 47 applies repulsive force to the magnetic sheet 488, the top end of the magnetic sheet 47 relatively reaches the top end of the inner tube 41, repulsive force can be applied to the magnetic sheet 488 and the pin 486 to push the magnetic sheet 488 and the pin 486 to lock the ball 482, the ball 482 cannot roll between the inner tube 41 and the sleeve 3, and the friction force between the inner tube 41 and the sleeve 3 is increased, so that the inner tube 41 and the sleeve 3 are locked;
the surface of the inner tube 41 is provided with a warning member 489 cooperating with the magnetic stripe 47.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the warning member 489 includes a plurality of groups of through slots 4891 formed along the surface of the inner tube 41, and the plurality of groups of through slots 4891 are respectively located between two adjacent groups of slots 42;
the through groove 4891 corresponds to the position of the magnetic strip 47, a copper sheet 4892 is fixedly arranged in the through groove 4891, the copper sheet 4892 is of an inward bending structure, a magnetic column 4893 is fixedly arranged on the copper sheet 4892, the magnetic strip 47 applies repulsive force to the magnetic column 4893, the magnetic column 4893 is pushed outwards by the repulsive force to push the copper sheet 4892 to deform, when the target rod 44 slides out of the inner tube 41, the synchronously moving magnetic strip 47 gradually leaves the position corresponding to the copper sheet 4892 from top to bottom, the copper sheet 4892 and the magnetic column 4893 on the surface of the copper sheet 4892 lose thrust, the outwards protruded copper sheet 4892 deforms inwards to return and emits sound, and meanwhile after the subsequent inner tube 41 sinks, the return magnetic strip 47 pushes the copper sheet 4892 to deform outwards again to emit sound.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, a cap is clamped at the top of the sleeve 3, and when the cap is pulled out, the resistance-reducing monitor 4 can be maintained along the sleeve 3, and when the cap is covered, external dust and rainwater can be blocked, so that the operation of the resistance-reducing monitor 4 is prevented from being affected.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, scales adapted to the inner tube 41 are formed on the surface of the sleeve 3 along the side of the observation groove 5, and the depth of the inner tube 41 sinking along the sleeve 3 can be intuitively and rapidly read by matching the scales by observing the position of the top end of the inner tube 41 along the observation groove 5.
In this embodiment, as shown in fig. 1, 2, 3, 4 and 5 to 8, the magnetic strip 47 is fixedly installed in the caulking groove 46 by a screw, and the quick assembly and disassembly of the magnetic strip 47 can be performed by screwing off the screw, thereby facilitating the overhaul and maintenance.
In this embodiment, as shown in fig. 1, 2, 3, 4 and 5 to 8, a snap ring is fixedly installed on the surface of the pin 486, and the snap ring is located in the inner hole 481, and the snap ring can only move in the inner hole 481 but cannot slide out, so as to restrict the sliding of the pin 486 and prevent the pin 486 from disengaging along the through hole 485.
The application method and the advantages of the invention are as follows: the monitoring device for the settlement of the geotechnical engineering construction soil layer works in the following working process:
as shown in fig. 1, 2, 3, 4, 5 to 8:
s1, loading the inner pipe 41 from the bottom of the sleeve pipe 3, loading the inner rod from the bottom end of the inner pipe 41, and inserting the sleeve pipe 3 into the socket 2 for installation, wherein the sedimentation head 45 at the bottom end of the inner rod is in contact with a soil layer;
s2, when the land subsides, the subsidence head 45 and the inner rod move downwards synchronously along with gravity, the subsidence amount is calculated through the interval between the inner rod and the sleeve 3, the magnetic ring 43 in the inner tube 41 applies repulsive force to the magnetic strip 47 in the process, the magnetic strip 47 of the outer ring array of the target rod 44 is used for restraining the target rod 44, so that the target rod 44 is positioned at the central axis of the inner tube 41 and cannot contact with the inner wall of the inner tube 41 when moving downwards, and friction between the target rod 44 and the inner tube 41 in the subsidence process is avoided;
s3, when the target rod 44 moves downwards in the inner tube 41, as the inner tube 41 is in contact sliding connection along the inside of the sleeve 3 through the balls 482, the friction force between the balls 482 and the sleeve 3 is larger than the friction force between the target rod 44 and the inner tube 41, so that the inner tube 41 sinks slower than the target rod 44, after the target rod 44 sinks, the inner tube 41 sinks again to be sleeved on the target rod 44, at the moment, the top end of the magnetic strip 47 relatively reaches the top end of the inner tube 41, repulsive force is applied to the magnetic strip 488 and the pin 486, the magnetic strip is pushed to the balls 482 to lock, the balls 482 cannot roll between the inner tube 41 and the sleeve 3, the friction force between the inner tube 41 and the sleeve 3 is increased, and the inner tube 41 and the sleeve 3 are locked, so that the locking of the current sinking amount of the target rod 44 and the inner tube 41 is realized by delaying the sinking of the inner tube 41, and the sinking amount data is saved;
s4, because the friction force between the ball 482 and the sleeve 3 is larger than the friction force between the target rod 44 and the inner tube 41, the inner tube 41 sinks slower than the target rod 44, when the target rod 44 slides out of the inner tube 41, the synchronously moving magnetic strips 47 gradually leave the positions corresponding to the copper sheets 4892 from top to bottom, the copper sheets 4892 and the magnetic columns 4893 on the surfaces of the copper sheets 4892 lose thrust, the outwards protruding copper sheets 4892 deform inwards to return to generate sound, and simultaneously after the inner tube 41 sinks later, the return magnetic strips 47 push the copper sheets 4892 to deform outwards again to generate sound, so that corresponding warning sounds are generated when the soil layer and the target rod 44 sink.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Monitoring devices is used in geotechnical engineering construction soil layer subsidence, including installing support (1), its characterized in that: the socket (2) is fixedly arranged on the mounting bracket (1), the upper end and the lower end of the socket (2) are of a through structure, the sleeve (3) is inserted into the socket (2), and the resistance-reducing monitor (4) is arranged in the sleeve (3);
an observation groove (5) corresponding to the resistance reduction monitor (4) is formed in the surface of the sleeve (3);
the resistance-reducing monitor (4) comprises an inner pipe (41) which is arranged in the sleeve (3) in a sliding manner, a plurality of groups of grooves (42) are formed in the inner wall of the inner pipe (41), a single group of grooves (42) are symmetrically arranged along the inner pipe (41), and magnetic rings (43) are arranged in the grooves (42) of the inner pipe (41);
a target rod (44) is movably connected in the inner tube (41), and a sedimentation head (45) is fixedly arranged at the bottom end of the target rod (44);
six caulking grooves (46) are formed in the surface of the target rod (44), the six caulking grooves (46) are in annular equidistant arrays along the surface of the target rod (44), magnetic strips (47) are fixedly arranged in the six caulking grooves (46), and the magnetic rings (43) apply repulsive force to the magnetic strips (47) to put the target rod (44) in the sleeve (3);
a delay backstop (48) matched with the magnetic stripe (47) is arranged on the sleeve (3);
the delay backstop (48) comprises three groups of inner holes (481) formed in the casing (3), wherein a plurality of single groups of inner holes (481) are formed, the three groups of inner holes (481) are positioned at the upper side of the casing (3), and the three groups of inner holes (481) are arranged in an annular array along the casing (3);
the outer end of the inner hole (481) is communicated with the outside, a ball (482) is movably connected in the inner hole (481), a spring (483) is arranged in the inner hole (481), and the spring (483) pushes the ball (482) to slide outwards;
the outer end of the inner hole (481) is contracted into a conical opening (484) with a narrow outer part and a wide inner part, the conical opening (484) limits the sliding out of the ball (482), and one third part of the ball (482) extends out of the conical opening (484) and is attached to the inner wall of the sleeve (3);
the inner end of the inner hole (481) is provided with a perforation (485) communicated with the inside of the inner tube (41), a pin (486) is slidably connected in the perforation (485), a clamping groove (487) for pressing and locking the ball (482) is formed in one end of the pin (486) opposite to the ball (482), a magnetic sheet (488) is fixedly arranged at one end of the pin (486) opposite to the target rod (44), and the magnetic sheet (488) is applied with repulsive force by the magnetic sheet (47);
the surface of the inner tube (41) is provided with a warning piece (489) matched with the magnetic strip (47);
the warning piece (489) comprises a plurality of groups of through grooves (4891) formed along the surface of the inner tube (41), and the groups of through grooves (4891) are respectively positioned between two adjacent groups of notch grooves (42);
the magnetic strip comprises a magnetic strip (4891), wherein the magnetic strip (4893) is fixedly arranged in the magnetic strip (47), the magnetic strip (4893) is fixedly arranged on the copper strip (4892), the magnetic strip (47) is provided with repulsive force, and the repulsive force is exerted on the magnetic strip (4893) to push the copper strip (4892) outwards to deform.
2. The monitoring device for settlement of geotechnical engineering construction soil layer according to claim 1, wherein: the top of the sleeve (3) is clamped with a pipe cap.
3. The monitoring device for settlement of geotechnical engineering construction soil layer according to claim 1, wherein: the surface of the sleeve (3) is provided with scales which are matched with the inner tube (41) along the side of the observation groove (5).
4. The monitoring device for settlement of geotechnical engineering construction soil layer according to claim 1, wherein: the magnetic strip (47) is fixedly arranged in the caulking groove (46) through a screw.
5. The monitoring device for settlement of geotechnical engineering construction soil layer according to claim 1, wherein: the surface of the pin (486) is fixedly provided with a clamping ring, and the clamping ring is positioned in the inner hole (481).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310966553.1A CN116678376B (en) | 2023-08-03 | 2023-08-03 | Monitoring device for settlement of geotechnical engineering construction soil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310966553.1A CN116678376B (en) | 2023-08-03 | 2023-08-03 | Monitoring device for settlement of geotechnical engineering construction soil layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116678376A CN116678376A (en) | 2023-09-01 |
| CN116678376B true CN116678376B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310966553.1A Active CN116678376B (en) | 2023-08-03 | 2023-08-03 | Monitoring device for settlement of geotechnical engineering construction soil layer |
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| CN (1) | CN116678376B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117346036B (en) * | 2023-12-06 | 2024-02-23 | 青岛地质工程勘察院(青岛地质勘查开发局) | Survey device suitable for weak soil ground subsides |
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| JPH03195645A (en) * | 1989-12-26 | 1991-08-27 | Fujitsu Ltd | Elevating/sinking mechanism |
| CN207730196U (en) * | 2017-11-10 | 2018-08-14 | 陕西交通技术咨询有限公司 | A kind of Sopwith staff of testing oneself for measuring tunnel face-upward slope ground settlement |
| CN208223469U (en) * | 2018-06-11 | 2018-12-11 | 中铁开发投资集团有限公司 | A kind of subway sedimentation monitoring system based on distributive fiber optic strain sensing |
| JP2019143345A (en) * | 2018-02-20 | 2019-08-29 | 東京瓦斯株式会社 | Settlement measuring device and settlement measuring system |
| CN113218363A (en) * | 2021-05-17 | 2021-08-06 | 中航勘察设计研究院有限公司 | Geotechnical engineering construction soil layer subsides and uses monitoring devices |
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| CN115248027B (en) * | 2021-04-28 | 2023-07-21 | 深圳大学 | Optical fiber sensing monitoring device for soil settlement and settlement measuring method |
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