CN217421208U - Auxiliary construction device of two-lining structure - Google Patents
Auxiliary construction device of two-lining structure Download PDFInfo
- Publication number
- CN217421208U CN217421208U CN202220850142.7U CN202220850142U CN217421208U CN 217421208 U CN217421208 U CN 217421208U CN 202220850142 U CN202220850142 U CN 202220850142U CN 217421208 U CN217421208 U CN 217421208U
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- Prior art keywords
- protective layer
- main
- positioning plate
- plate
- locating plate
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000011241 protective layer Substances 0.000 claims abstract description 90
- 210000003205 muscle Anatomy 0.000 claims abstract description 64
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 230000002787 reinforcement Effects 0.000 claims description 30
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Road Paving Structures (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses an auxiliary construction device of a two-lining structure, which comprises a first main rib positioning plate (1), a second main rib positioning plate (2), a connecting plate (3), a protective layer ejector rod (4) and a protective layer thickness adjusting sleeve (5); first main muscle locating plate and second main muscle locating plate are parallel and link into an organic whole structure through the connecting plate, there are reinforcing bar constant head tank (6) on the inboard side of first main muscle locating plate and second main muscle locating plate, be equipped with protective layer thickness adjusting collar on the outside limit of first main muscle locating plate and second main muscle locating plate, the protective layer ejector pin passes through protective layer thickness adjusting collar and first main muscle locating plate and second main muscle locating plate swing joint, and the protective layer ejector pin extends to the outside of first main muscle locating plate and second main muscle locating plate. The utility model discloses can the accurate positioning owner muscle reinforcing bar, control owner muscle interval and inside and outside owner muscle headroom can the accurate control protective layer thickness simultaneously.
Description
Technical Field
The utility model relates to a construction auxiliary assembly especially relates to a supplementary construction equipment of two lining structures.
Background
In the construction of an inverted arch secondary lining structure of a tunnel structure, the requirements on the control of the distance between reinforcing steel bars and the thickness of a protective layer are high. In actual work progress, the reinforcing bar interval generally adopts the mode of marking off to control, and the construction is more troublesome, and interval control accuracy is relatively poor, often causes the inhomogeneous scheduling problem of reinforcing bar interval. In addition, the thickness of the protective layer of the two lining walls is generally controlled by the protective blocks, the protective blocks need to be bound on the reinforcing steel bars, the casting thickness of the protective layer is determined according to the thickness of the protective blocks, the binding and installation of the protective blocks are troublesome, and the protective blocks are easy to fall off under the disturbance of concrete casting and the like. When the formwork is sealed, if the position of the formed steel bar deviates from the design value, the thickness of the steel bar protective layer is larger than the design value, and the protective block can lose the function. And the protective block can only control the minimum value of the protective layer, so that the concrete protective layer poured in actual construction is generally larger.
Disclosure of Invention
An object of the utility model is to provide a supplementary construction equipment of two lining structures can the accurate positioning owner muscle reinforcing bar, and control owner muscle interval and inside and outside owner muscle headroom can the accurate control protective layer thickness simultaneously.
The utility model discloses a realize like this:
an auxiliary construction device of a secondary lining structure comprises a first main rib positioning plate, a second main rib positioning plate, a connecting plate, a protective layer ejector rod and a protective layer thickness adjusting sleeve; the first main reinforcement positioning plate and the second main reinforcement positioning plate are arranged in parallel and are connected into an integral structure through a connecting plate, a plurality of reinforcement positioning grooves are formed in the first main reinforcement positioning plate and the second main reinforcement positioning plate at intervals, and the reinforcement positioning grooves are located on the inner side edges of the first main reinforcement positioning plate and the second main reinforcement positioning plate which are oppositely arranged; protective layer thickness adjusting sleeves are arranged on the first main rib positioning plate and the second main rib positioning plate respectively, and are positioned on the outer side edges of the first main rib positioning plate and the second main rib positioning plate which are arranged in a back-to-back manner; the protective layer ejector rod is movably connected with the first main rib positioning plate and the second main rib positioning plate through the protective layer thickness adjusting sleeve, and the protective layer ejector rod extends to the outer sides of the first main rib positioning plate and the second main rib positioning plate.
The connecting plate is provided with scale marks and is vertically connected with the first main rib positioning plate and the second main rib positioning plate.
The reinforcing bar constant head tank semicircular structure, the reinforcing bar constant head tank runs through the inboard side of first main muscle locating plate and second main muscle locating plate, makes the reinforcing bar can pass through the joint of reinforcing bar constant head tank on first main muscle locating plate and second main muscle locating plate.
The surface of the protective layer ejector rod is provided with an external thread, an internal thread is formed on the inner wall of the protective layer thickness adjusting sleeve, one end of the protective layer ejector rod penetrates through the protective layer thickness adjusting sleeve and is in threaded connection with the protective layer thickness adjusting sleeve, and the other end of the protective layer ejector rod extends to the outer sides of the first main rib positioning plate and the second main rib positioning plate.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses owing to be equipped with first main muscle locating plate and the main muscle locating plate of second that have the reinforcing bar constant head tank, can fix a position and rectify a deviation to the reinforcing bar that the ligature is good through the reinforcing bar constant head tank, simultaneously through the interval of the first main muscle locating plate of connecting plate control and the main muscle locating plate of second that have the scale, both retrained two lining wall main muscle intervals, retrained inside and outside main muscle headroom again, guarantee the reinforcement quality, thereby promote the construction quality of two lining structures in the tunnel engineering, be favorable to improving the efficiency of construction.
2. The utility model discloses owing to be equipped with protective layer ejector pin and protective layer thickness control cover, can adjust and control the extension length of protective layer ejector pin through the screw thread rotating for the top tightly reaches the purpose of accurate control protective layer thickness on outer envelope and inboard primary structure, avoids the protective layer ejector pin to receive the disturbance at the concrete placement in-process through the interlock of screw thread simultaneously, ensures the unity of protective layer thickness.
3. The utility model has the advantages of simple structure, dismouting simple operation, with low costs, easily draw materials and preparation, practicality and commonality are strong, can circulate to have enough to meet the need the use, can popularize and apply in constructions such as two lining structures in the tunnel.
Drawings
Fig. 1 is a front view of the auxiliary construction device of the two-lining structure of the present invention.
In the figure, 1 a first main rib positioning plate, 2 a second main rib positioning plate, 3 connecting plates, 4 protective layer ejector rods, 5 protective layer thickness adjusting sleeves and 6 steel bar positioning grooves.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to the attached figure 1, the auxiliary construction device of the two-lining structure comprises a first main rib positioning plate 1, a second main rib positioning plate 2, a connecting plate 3, a protective layer ejector rod 4 and a protective layer thickness adjusting sleeve 5; the first main reinforcement positioning plate 1 and the second main reinforcement positioning plate 2 are arranged in parallel and connected into an integral structure through a connecting plate 3, a plurality of reinforcement positioning grooves 6 are formed on the first main reinforcement positioning plate 1 and the second main reinforcement positioning plate 2 at intervals, and the reinforcement positioning grooves 6 are positioned on the inner side edges of the first main reinforcement positioning plate 1 and the second main reinforcement positioning plate 2 which are oppositely arranged; protective layer thickness adjusting sleeves 5 are arranged on the first main rib positioning plate 1 and the second main rib positioning plate 2 respectively, and the protective layer thickness adjusting sleeves 5 are positioned on the outer side edges of the first main rib positioning plate 1 and the second main rib positioning plate 2 which are arranged in a back-to-back manner; protective layer ejector pin 4 passes through protective layer thickness adjusting collar 5 and first main muscle locating plate 1 and the 2 swing joint of second main muscle locating plate, and protective layer ejector pin 4 extends to the outside of first main muscle locating plate 1 and second main muscle locating plate 2. Through the good two lining structure inside and outside reinforcing bars of reinforcement constant head tank 6 location and the ligature of rectifying on first main muscle locating plate 1 and the main muscle locating plate 2 for guarantee the reinforcing bar interval, and connect first main muscle locating plate 1 and main muscle locating plate 2, the headroom of control inside and outside reinforcing bar through connecting plate 3. Meanwhile, the protective layer ejector rod 4 and the relative protective layer thickness adjusting sleeve 5 move to control the extension length of the protective layer ejector rod 4, so that the protective layer ejector rod 4 is tightly pressed on the enclosure structure and the supporting structure, and the protective layer ejector rod is used for accurately controlling the thickness of the protective layer.
Connecting plate 3 on be equipped with scale mark (not shown in the figure), connecting plate 3 is connected with first main muscle locating plate 1 and second main muscle locating plate 2 are perpendicular, can pass through the interval of first main muscle locating plate 1 of scale mark accurate control and second main muscle locating plate 2 to clearance between the outside reinforcing bar in the control.
The reinforcing bar constant head tank 6 semicircular structure, reinforcing bar constant head tank 6 runs through the inboard side of first main muscle locating plate 1 and second main muscle locating plate 2, makes the reinforcing bar can pass through 6 joints of reinforcing bar constant head tank on first main muscle locating plate 1 and second main muscle locating plate 2. The reinforcing steel bar main reinforcing steel bar can be effectively clamped by the reinforcing steel bar positioning grooves 6 of the semicircular structures, so that the reinforcing steel bar main reinforcing steel bar is conveniently bound and fixed with the first main reinforcing steel bar positioning plate 1 and the second main reinforcing steel bar positioning plate 2, and the reinforcing steel bar is accurately positioned and corrected.
The surface of the protective layer ejector rod 4 is provided with an external thread, an internal thread is formed on the inner wall of the protective layer thickness adjusting sleeve 5, one end of the protective layer ejector rod 4 penetrates through the protective layer thickness adjusting sleeve 5 and is in threaded connection with the protective layer thickness adjusting sleeve 5, and the other end of the protective layer ejector rod 4 extends to the outer sides of the first main rib positioning plate 1 and the second main rib positioning plate 2. Through the rotation of screw thread, turn into axial linear motion with the rotation of protective layer ejector pin 4 to control protective layer ejector pin 4 and stretch out the length of first main muscle locating plate 1 and second main muscle locating plate 2, and then control the thickness of protective layer.
Preferably, first main muscle locating plate 1 and second main muscle locating plate 2 can adopt the angle steel to make, and the length of first main muscle locating plate 1 and second main muscle locating plate 2 can be confirmed according to the design size of two lining structures, and connecting plate 3 can adopt steel sheet, steel ruler etc. to make, and confirm behind the interval of first main muscle locating plate 1 and second main muscle locating plate 2 with connecting plate 3 through modes such as spiro union or welding and first main muscle locating plate 1 and second main muscle locating plate 2 connect into the rectangle frame structure. The protective layer ejector rod 4 can adopt a bolt, and the protective layer thickness adjusting sleeve 5 can adopt a nut matched with the bolt.
The utility model discloses application method in tunnel structure inverted arch second lining construction is:
according to the main muscle interval and the main muscle specification that the design drawing required, set up reinforcing bar constant head tank 6 on first main muscle locating plate 1 and second main muscle locating plate 2, through the accurate two lining wall main muscle intervals of restraint of reinforcing bar constant head tank 6, restraint inside and outside main muscle headroom, through the thickness of the length determination protective layer in first main muscle locating plate 1 and the 2 outsides of second main muscle locating plate of protective layer ejector pin 4, accurate control protective layer thickness.
Fixing the main reinforcement steel bars on the outer side in the steel bar positioning grooves 6 of the first main reinforcement positioning plate 1, and binding the first main reinforcement positioning plate 1 and the main reinforcement steel bars on the outer side together; according to the design thickness of the outer side protective layers of the two lining walls, the protective layer ejector rod 4 on the first main rib positioning plate 1 moves relative to the first main rib positioning plate 1 through threaded rotation, the other end of the protective layer ejector rod 4 is tightly propped against the exterior protection structure on the outer side, and the engaged threads between the protective layer ejector rod 4 and the protective layer thickness adjusting sleeve 5 are used for preventing the protective layer ejector rod 4 from moving in the concrete pouring process, so that the uniform thickness of the protective layer is ensured.
Fixing the main reinforcement steel bars at the inner side in the steel bar positioning grooves 6 of the second main reinforcement positioning plate 2, and binding the second main reinforcement positioning plate 2 and the main reinforcement steel bars at the inner side together; according to the design thickness of the two lining wall outer side protective layers, the protective layer ejector rod 4 on the second main rib positioning plate 2 moves relative to the second main rib positioning plate 2 through screw thread rotation, the other end of the protective layer ejector rod 4 is tightly propped against the primary support structure on the inner side, and the screw thread meshed between the protective layer ejector rod 4 and the protective layer thickness adjusting sleeve 5 is utilized to prevent the protective layer ejector rod 4 from moving in the concrete pouring process, so that the uniform thickness of the protective layer is ensured.
Finish the utility model discloses an installation and adjust the back, can carry out concrete placement, guarantee to pour two interior rebar intervals of back lining wall even, and protective layer thickness is unified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (4)
1. An auxiliary construction device of a two-lining structure is characterized in that: the protective layer structure comprises a first main rib positioning plate (1), a second main rib positioning plate (2), a connecting plate (3), a protective layer ejector rod (4) and a protective layer thickness adjusting sleeve (5); the first main reinforcement positioning plate (1) and the second main reinforcement positioning plate (2) are arranged in parallel and connected into an integral structure through the connecting plate (3), a plurality of reinforcement positioning grooves (6) are formed in the first main reinforcement positioning plate (1) and the second main reinforcement positioning plate (2) at intervals, and the reinforcement positioning grooves (6) are positioned on the inner side edges of the first main reinforcement positioning plate (1) and the second main reinforcement positioning plate (2) which are oppositely arranged; protective layer thickness adjusting sleeves (5) are arranged on the first main rib positioning plate (1) and the second main rib positioning plate (2), and the protective layer thickness adjusting sleeves (5) are positioned on the outer side edges of the first main rib positioning plate (1) and the second main rib positioning plate (2) which are arranged in a back-to-back manner; the protective layer ejector rod (4) is movably connected with the first main rib positioning plate (1) and the second main rib positioning plate (2) through a protective layer thickness adjusting sleeve (5), and the protective layer ejector rod (4) extends to the outer sides of the first main rib positioning plate (1) and the second main rib positioning plate (2).
2. The secondary lining structure auxiliary working apparatus according to claim 1, wherein: the connecting plate (3) is provided with scale marks, and the connecting plate (3) is vertically connected with the first main rib positioning plate (1) and the second main rib positioning plate (2).
3. The secondary working apparatus of a secondary lining structure as set forth in claim 1, wherein: reinforcing bar constant head tank (6) semicircular structure, reinforcing bar constant head tank (6) run through the inboard side of first main muscle locating plate (1) and second main muscle locating plate (2), make the reinforcing bar can pass through reinforcing bar constant head tank (6) joint on first main muscle locating plate (1) and second main muscle locating plate (2).
4. The secondary working apparatus of a secondary lining structure as set forth in claim 1, wherein: the surface of the protective layer ejector rod (4) is provided with an external thread, an internal thread is formed on the inner wall of the protective layer thickness adjusting sleeve (5), one end of the protective layer ejector rod (4) penetrates through the protective layer thickness adjusting sleeve (5) and is in threaded connection with the protective layer thickness adjusting sleeve (5), and the other end of the protective layer ejector rod (4) extends to the outer sides of the first main rib positioning plate (1) and the second main rib positioning plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850142.7U CN217421208U (en) | 2022-04-12 | 2022-04-12 | Auxiliary construction device of two-lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850142.7U CN217421208U (en) | 2022-04-12 | 2022-04-12 | Auxiliary construction device of two-lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421208U true CN217421208U (en) | 2022-09-13 |
Family
ID=83182194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220850142.7U Expired - Fee Related CN217421208U (en) | 2022-04-12 | 2022-04-12 | Auxiliary construction device of two-lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749141A (en) * | 2022-10-28 | 2023-03-07 | 中国十七冶集团有限公司 | Control tool and installation method for concrete column steel bar positioning protective layer |
-
2022
- 2022-04-12 CN CN202220850142.7U patent/CN217421208U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749141A (en) * | 2022-10-28 | 2023-03-07 | 中国十七冶集团有限公司 | Control tool and installation method for concrete column steel bar positioning protective layer |
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| 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: 20220913 |