CN217005782U - Novel tunnel headroom convergence deformation monitoring device - Google Patents
Novel tunnel headroom convergence deformation monitoring device Download PDFInfo
- Publication number
- CN217005782U CN217005782U CN202220792118.2U CN202220792118U CN217005782U CN 217005782 U CN217005782 U CN 217005782U CN 202220792118 U CN202220792118 U CN 202220792118U CN 217005782 U CN217005782 U CN 217005782U
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- China
- Prior art keywords
- rod
- light reflecting
- nut
- embedding
- embedding rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 8
- 230000011514 reflex Effects 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a novel tunnel clearance convergence deformation monitoring device which comprises an embedding rod, slurry outlet holes, slurry injection holes, a light reflecting device, a cap nut and threads, wherein the main body of the embedding rod is a hollow cylinder, the lower end of the embedding rod is a conical entity, four groups of eight slurry outlet holes which are communicated in pairs are equidistantly arranged in the middle of the embedding rod, the threads and the slurry injection holes are arranged at the upper end of the embedding rod, the light reflecting device and the cap nut are connected with the embedding rod through the threads, and the light reflecting device is formed by welding a square thin steel plate with a light reflecting paste and a hexagon nut.
Description
Technical Field
The utility model relates to the field of tunnel deformation monitoring, in particular to a novel tunnel clearance convergence deformation monitoring device.
Background
The tunnel deformation monitoring is an indispensable important link in tunnel engineering construction, and is fully utilized in the tunnel fields of subways, water conservancy projects, mining and the like at present. With the continuous promotion of the urbanization construction in China, the tunnel excavation becomes more and more common, but because the tunnel construction is hidden engineering, some safety problems inevitably exist in the engineering construction, and in order to prevent the problems, the deformation condition of the tunnel structure can be monitored in the tunnel construction, so that the safety of the engineering construction is ensured.
At the present stage, the clearance convergence of the tunnel is measured by mainly utilizing a total station and a deformation monitoring device. Although the monitoring method is simple to operate, the existing deformation monitoring device has some problems in use, for example, after the embedded rod is embedded into a rock mass, the anchoring force is not strong, and the measured data has errors due to the fact that the embedded rod is easy to loosen after being subjected to external force; once the existing deformation monitoring device is damaged in the tunnel, the deformation monitoring device must be buried again, and the engineering construction amount and the construction cost are greatly increased. Therefore, a new device for monitoring convergence deformation of tunnel clearance is needed.
Disclosure of Invention
In order to solve the problems of poor anchoring force, easy looseness, trouble replacement after damage and overhigh engineering cost of the conventional deformation monitoring device, the utility model provides the novel tunnel clearance convergence deformation monitoring device, which effectively solves the problems, increases the anchoring force between a rock mass and the deformation monitoring device, facilitates the replacement work after the deformation monitoring device is damaged, and reduces the engineering construction cost.
The utility model adopts the following technical scheme:
the utility model provides a novel tunnel headroom convergence warp monitoring devices, comprises embedding pole, grout outlet, injected hole, reflex reflector, cap nut and screw thread, characterized by: the embedded rod is characterized in that the main body of the embedded rod is a hollow cylinder, the lower end of the embedded rod is a conical entity, four groups of eight slurry outlet holes which are communicated in pairs are arranged in the middle of the embedded rod at equal intervals, threads and slurry injection holes are formed in the upper end of the embedded rod, the light reflecting device and the cap-shaped nut are connected with the embedded rod through the threads, and the light reflecting device is formed by welding a square thin steel plate with a light reflecting paste and a hexagonal nut.
Preferably, the radius of the grout outlet on the shank is 3 mm.
Preferably, the upper end of the embedded rod is screwed with the light reflecting device and the cap nut without excess length.
Preferably, the wall thickness of the hollow section of the central portion of the embedded rod is 3 mm.
Preferably, the light reflecting means is connected to the embedded rod by a hexagonal nut.
Preferably, the distance between the hexagonal opposite sides of the cap nut is 4mm less than the distance between the hexagonal opposite sides of the hexagonal nut.
The utility model has the beneficial effects that: (1) the setting up of grout outlet has made things convenient for the outflow of cement mortar, and cement mortar pours into from the slip casting hole, comes out from grout outlet through the cavity section of embedding pole, along with the increase of pouring into cement mortar, and the clearance between embedding pole and the pre-buried hole pore wall is filled up by cement mortar, treats that the mortar solidifies the back with embedding pole and rock mass even as an organic whole, has effectively solved the poor problem of anchor between traditional deformation monitoring devices and the rock mass. (2) The light reflecting device is locked by the cap nut, so that the measuring error caused by looseness of the light reflecting device is reduced, and meanwhile, the embedded rod can be prevented from leaking slurry by screwing the cap nut. (3) The appropriate thickness of the rod wall of the hollow section of the embedded rod avoids the deformation of the embedded rod caused by too thin thickness of the rod wall when the embedded rod is inserted into the embedded hole. (4) The lower end of the embedded rod is a conical entity, so that the deformation monitoring device can be conveniently inserted into the pre-buried hole. (5) The embedded rod is connected with the reflecting device through threads, so that the reflecting device is convenient to damage, replace and recycle, engineering materials are saved, and the engineering construction cost is reduced. (6) The size of the cap nut is smaller than that of the hexagon nut on the light reflecting device, so that the square thin steel plate on the light reflecting device can be prevented from influencing the installation of the cap nut, and the cap nut is guaranteed to be installed smoothly.
Drawings
Fig. 1 is a structural elevation view of the present invention.
Fig. 2 is a rear view of the structure of the present invention.
Fig. 3 is a front view of the structure of each component part of the present invention.
Fig. 4 is a rear view of the structure of the components of the present invention.
FIG. 5 is a top view of the structure of the components of the present invention.
In the figure, 1 an embedded rod, 2 slurry outlet holes, 3 slurry injection holes, 4 light reflecting devices, 4-1 light reflecting pastes, 4-2 square thin steel plates, 4-3 hexagonal nuts, 5 cap-shaped nuts and 6 threads.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the utility model provides a novel tunnel headroom convergence warp monitoring devices, comprises embedding pole 1, grout outlet 2, injected hole 3, reflex reflector 4, lid shape nut 5 and screw thread 6, characterized by: the main body of the embedded rod 1 is a hollow cylinder, the lower end of the embedded rod is a conical entity, four groups of eight slurry outlet holes 2 which are communicated in pairs are arranged in the middle of the embedded rod at equal intervals, the upper end of the embedded rod is provided with threads 6 and a slurry injection hole 3, a light reflecting device 4 and a cap nut 5 are connected with the embedded rod 1 through the threads 6, wherein the light reflecting device 4 is formed by welding a square thin steel plate 4-2 with a light reflecting paste 4-1 and a hexagon nut 4-3.
Preferably, the radius of the grout outlet 2 on the embedded bar 1 is 3 mm.
Preferably, the upper end thread 6 of the embedded rod 1 is screwed with the reflector 4 and the cap nut 5 without an excessive length.
Preferably, the wall thickness of the hollow section in the middle of the embedded rod 1 is 3 mm.
Preferably, the light reflecting means 4 is connected to the embedded rod 1 by means of a hexagonal nut 4-3.
Preferably, the distance between the hexagonal opposite sides of the cap nut 5 is 4mm less than the distance between the hexagonal opposite sides of the hexagonal nut 4-3.
When the device is used, firstly, an embedded hole is drilled at a point to be tested in a tunnel by an electric drill, the diameter of the embedded hole is slightly larger than that of the embedded rod 1, then the embedded rod 1 with the light reflecting device 4 screwed is embedded into the embedded hole, cement mortar is poured into the embedded rod 1 through the grouting hole 3 after the embedded rod is fixed, the cement mortar is poured from the grouting hole 3 and flows out of the grout outlet hole 2 through the hollow section of the embedded rod 1, along with the increase of the poured cement mortar, the gap between the embedded rod 1 and the wall of the embedded hole is filled with the cement mortar, after the mortar is solidified, the embedded rod 1 and a rock body are connected into a whole, the anchoring strength of the device is greatly increased, meanwhile, the hollow section of the embedded rod 1 is also filled with the cement mortar, the strength of the rod body of the embedded rod 1 is increased, in addition, in order to prevent the mortar from flowing out after being poured, a cover-shaped nut 5 is screwed on the cement mortar, and the cap nut 5 is tightly close to the hexagon nut 4-3 to prevent the light reflecting device 4 from loosening when in use.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a novel tunnel headroom convergence warp monitoring devices, comprises embedding pole (1), grout outlet (2), injected hole (3), reflex reflector (4), cap nut (5) and screw thread (6), characterized by: the main body of the embedding rod (1) is a hollow cylinder, the lower end of the embedding rod (1) is a conical entity, four groups of eight slurry outlet holes (2) which are communicated in pairs are arranged in the middle of the embedding rod at equal intervals, threads (6) and slurry injection holes (3) are arranged at the upper end of the embedding rod, a light reflecting device (4) and a cap nut (5) are connected with the embedding rod (1) through the threads (6), and the light reflecting device (4) is formed by welding a square thin steel plate (4-2) attached with a light reflecting sticker (4-1) and a hexagonal nut (4-3).
2. The device for monitoring convergence deformation of tunnel clearance as claimed in claim 1, wherein: the radius of the pulp outlet hole (2) on the embedding rod (1) is 3 mm.
3. The device for monitoring convergence deformation of tunnel clearance as claimed in claim 1, wherein: the upper end thread (6) of the embedded rod (1) has no excess length after the light reflecting device (4) and the cap-shaped nut (5) are screwed on.
4. The device for monitoring convergence deformation of tunnel clearance as claimed in claim 1, wherein: the thickness of the rod wall of the hollow section in the middle of the embedded rod (1) is 3 mm.
5. The device for monitoring convergence deformation of tunnel clearance as claimed in claim 1, wherein: the light reflecting device (4) is connected with the embedded rod (1) through a hexagonal nut (4-3).
6. The device for monitoring convergence deformation of tunnel clearance as claimed in claim 1, wherein: the distance between the hexagonal opposite sides of the cap-shaped nut (5) is 4mm smaller than that of the hexagonal opposite sides of the hexagonal nut (4-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792118.2U CN217005782U (en) | 2022-04-07 | 2022-04-07 | Novel tunnel headroom convergence deformation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792118.2U CN217005782U (en) | 2022-04-07 | 2022-04-07 | Novel tunnel headroom convergence deformation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217005782U true CN217005782U (en) | 2022-07-19 |
Family
ID=82376789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220792118.2U Expired - Fee Related CN217005782U (en) | 2022-04-07 | 2022-04-07 | Novel tunnel headroom convergence deformation monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217005782U (en) |
-
2022
- 2022-04-07 CN CN202220792118.2U patent/CN217005782U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220719 |