CN221096559U - Waterproof two lining reinforcing bar securing device of tunnel vault - Google Patents
Waterproof two lining reinforcing bar securing device of tunnel vault Download PDFInfo
- Publication number
- CN221096559U CN221096559U CN202322695114.XU CN202322695114U CN221096559U CN 221096559 U CN221096559 U CN 221096559U CN 202322695114 U CN202322695114 U CN 202322695114U CN 221096559 U CN221096559 U CN 221096559U
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- Prior art keywords
- steel bar
- waterproof
- lining
- anchor rod
- exposed end
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- 230000003014 reinforcing effect Effects 0.000 title claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 95
- 239000010959 steel Substances 0.000 claims abstract description 95
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000011435 rock Substances 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 24
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 9
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a waterproof two-lining steel bar stabilizing device for a tunnel vault, which comprises a waterproof plate, a steel bar anchor rod, a sealing element and a fixed connecting element, wherein the waterproof plate is tightly attached to a concrete layer of surrounding rock; the steel bar anchor rod sequentially passes through the waterproof plate and the concrete layer, is inserted into the surrounding rock, and is anchored with the surrounding rock and the concrete layer through anchor slurry; the sealing piece is sleeved at the exposed end of the steel bar anchor rod in a sealing way and can seal the waterproof plate; the fixed connecting piece is used for connecting and fixing the two lining steel bars with the exposed ends of the steel bar anchor rods. The waterproof two lining reinforcing steel bar stabilizing device for the tunnel vault has the functions of stabilizing the two lining general reinforcing steel bars and also serving as an anchor rod and two lining waterproof, thereby improving engineering safety.
Description
Technical Field
The utility model relates to the technical field of ultra-large section tunnel construction equipment, in particular to a waterproof two-lining reinforcing steel bar stabilizing device for a tunnel vault.
Background
In recent years, more and more oversized-section tunnels appear, and when the oversized-section tunnels are constructed, in order to ensure that the tunnel structure is safer, the design of the second lining structure is thicker, the body quantity of the second lining steel bars is also larger and larger, and the risk of collapse accidents of the second lining steel bars is increased. If the construction accidents such as collapse and overturning of the reinforcing steel bar net are easy to occur without control, the safety of constructors is seriously influenced, and meanwhile, huge losses are caused to engineering economy.
On the other hand, in the existing tunnel vault secondary lining steel bar stabilizing piece, the secondary lining construction waterproof measure is not considered, after the steel bars penetrate through the waterproof board and penetrate through the concrete layer to enter surrounding rocks, the surrounding rock groundwater easily enters the secondary lining structure through gaps, and serious potential safety hazards are brought to engineering structures.
Disclosure of utility model
Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide the tunnel vault waterproof two-lining reinforcing steel bar stabilizing device which is provided with the functions of stabilizing two-lining general reinforcing steel bars and also serving as an anchor rod and two-lining waterproof, so that the engineering safety is improved.
In order to achieve the above object, the present utility model is realized by the following technical scheme: a tunnel vault waterproof two-lining steel bar stabilizing device, comprising:
The waterproof board is tightly attached to the concrete layer of the surrounding rock;
The steel bar anchor rod sequentially passes through the waterproof plate and the concrete layer, is inserted into the surrounding rock and is anchored with the surrounding rock and the concrete layer through anchor pulp;
The sealing piece is hermetically sleeved at the exposed end of the steel bar anchor rod and can seal the waterproof plate; and
And the fixed connecting piece is used for connecting and fixing the two lining steel bars with the exposed end of the steel bar anchor rod.
Further, the sealing element is a plastic pad, the exposed end of the steel bar anchor rod is provided with threads, and the plastic pad is connected with the exposed end of the steel bar anchor rod through the threads.
Further, the fixed connection piece includes tie and preforming, the exposed end of reinforcing bar stock with two lining reinforcing bars are alternately set up, the both ends of tie are provided with the screw thread, the middle part cover of tie is established the exposed end of reinforcing bar stock, tie both ends walk around behind two lining reinforcing bars relative be located the both sides of the exposed end of reinforcing bar anchor, the both ends of preforming are provided with the perforation, the preforming passes through the perforation cover is established two tip of tie, two tip of tie can be fixed respectively in two in the perforation.
Further, the fixed connecting piece further comprises two first nuts, the binding band is a steel wire, threads are arranged at two ends of the steel wire, the two first nuts are respectively sleeved at two ends of the binding band, the first nuts are rotated, and the two first nuts can push the pressing sheet to be pressed at the ends of the steel bar anchor rod.
Further, the waterproof plate further comprises a stabilizing piece, wherein the stabilizing piece is connected with the exposed end of the steel bar anchor rod and can be supported at the end part of the sealing piece, which is far away from the waterproof plate.
Further, the fixing piece is a jacking nut, the thread sleeve of the jacking nut is arranged at the exposed end of the steel bar anchor rod, and the jacking nut can be abutted against the sealing piece by rotating.
Further, the secondary lining steel bars are screw-thread steel bars.
Further, the steel bar anchor rod is a threaded steel bar.
The utility model has the beneficial effects that:
When the tunnel vault waterproof two-lining steel bar stabilizing device is used for constructing the two-lining steel bar of the oversized-section tunnel, after the primary support is constructed and the waterproof board is installed on the concrete layer of the surrounding rock, an anchoring hole is drilled from the waterproof board into the surrounding rock, and then a steel bar anchor rod is inserted into the anchoring hole and grouting is carried out in the anchoring hole, so that the anchor rod reinforcing effect is achieved; then, the sealing element is sleeved on the exposed end of the reinforced anchor rod and is fixed at a position close to the waterproof plate, and cementing agent is coated on the surface of the waterproof plate to be cemented with the sealing element, so that the sealing and waterproof effects are achieved; finally, the exposed end of the steel bar anchor rod is connected with the two lining steel bars through the fixed connecting piece, so that the two lining steel bars can be firmly acted, and meanwhile, through the sealing of the sealing piece, the surrounding rock groundwater easily enters the two lining structure through the gap, so that the potential safety hazard of the engineering structure is reduced.
By adopting the device, the device can not only stabilize the general quantity of steel bars of the tunnel vault two liners, but also give consideration to the waterproof function of the anchor rod and the two liners, thereby greatly improving the safety of the engineering structure.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a schematic view of a waterproof two-lining reinforcing bar stabilizer for a tunnel vault installed in a tunnel according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a waterproof two-lining reinforcing bar stabilizer for a tunnel vault of FIG. 1;
FIG. 3 is a schematic side view of a fixing connector of the waterproof two lining reinforcing steel bar fixing device of the tunnel vault shown in FIG. 1, which is fixed on a reinforcing steel bar anchor rod and two lining reinforcing steel bars;
reference numerals:
1. surrounding rock; 2. a concrete layer; 3. two lining steel bar
100. A waterproof board; 200. a steel bar anchor rod; 300. a seal; 400. fixing the connecting piece; 410. binding bands; 420. tabletting; 430. a first nut; 500. and (5) stabilizing the piece.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Referring to fig. 1 to 3, the present utility model provides a waterproof two-lining reinforcing bar stabilizing device for a tunnel vault, which comprises a waterproof board 100, a reinforcing bar anchor 200, a sealing member 300 and a fixing connector 400, and is used for waterproof the tunnel vault and stabilizing the two-lining reinforcing bars 3.
Specifically, the flashing 100 is placed against the concrete layer 2 of the surrounding rock 1. The reinforcing bar anchor rod 200 is inserted into the surrounding rock 1 after sequentially passing through the waterproof board 100 and the concrete layer 2, and is anchored with the surrounding rock 1 and the concrete layer 2 through the anchor slurry. The sealing member 300 is hermetically sleeved on the exposed end of the reinforcing bar stock 200, and is hermetically sleeved on the exposed end of the reinforcing bar stock 200 and can be tightly attached to the waterproof board 100. The fixing connector 400 is used to connect and fix the two lining reinforcing bars 3 with the exposed ends of the reinforcing bar anchors 200.
When the construction of the second lining steel bar of the oversized-section tunnel is carried out, after the primary support is finished and the waterproof board 100 is installed on the concrete layer 2 of the surrounding rock 1, an anchoring hole is firstly drilled in the surrounding rock 1 from the waterproof board 100, then the steel bar anchor rod 200 is inserted into the anchoring hole, and grouting is carried out in the anchoring hole, so that the anchor rod reinforcement function is realized; then, the sealing element 300 is sleeved on the exposed end of the steel bar anchor rod 200 and fixed at a position close to the waterproof board 100, and the surface of the waterproof board 100 is coated with cementing agent to be cemented with the sealing element 300, so that the sealing and waterproof functions are achieved; finally, the exposed end of the steel bar anchor rod 200 is connected with the secondary lining steel bar 3 through the fixed connecting piece 400, so that the secondary lining steel bar 3 can be stably acted; meanwhile, by sealing of the sealing element 300, the underground water of the surrounding rock 1 is not easy to enter the secondary lining structure through the gap, so that potential safety hazards of the engineering structure are reduced.
Specifically, the sealing member 300 is a plastic pad, and the exposed end of the reinforcing bar anchor 200 is provided with threads, and the plastic pad is connected with the exposed end of the reinforcing bar anchor 200 through the threads. With this structure, the sealing member 300 can be conveniently installed at the exposed end of the reinforcing bar anchor rod 200, and the sealing member 300 can be conveniently driven at a desired position, and when the sealing member 300 is rotatably moved to the vicinity of the waterproof board 100 during installation, the sealing can be performed by applying glue.
In this embodiment, the fixing connector 400 includes a binding band 410 and a pressing sheet 420, the exposed end of the reinforcing bar anchor rod 200 is disposed at the intersection with the secondary reinforcing bar 3, threads are disposed at two ends of the binding band 410, the middle of the binding band 410 is sleeved at the exposed end of the reinforcing bar anchor, two ends of the binding band 410 bypass the secondary reinforcing bar 3 and are located at two opposite sides of the exposed end of the reinforcing bar anchor rod 200, two ends of the pressing sheet 420 are provided with perforations, the pressing sheet 420 is sleeved at two ends of the binding band 410 through the perforations, and two ends of the binding band 410 can be fixed in the two perforations respectively.
When in installation, the middle part of the binding belt 410 is sleeved at the exposed end of the steel bar anchor, and then the two ends of the binding belt 410 bypass the two lining steel bars 3 and are positioned at the two opposite sides of the exposed end of the steel bar anchor 200; then, the two ends of the binding band 410 are inserted into the two holes, the pressing sheet 420 is pressed on the steel bar anchor rod 200, and finally, the two ends of the pulp binding band 410 are fixed in the two holes, so that the steel bar anchor rod 200 and the secondary lining steel bar 3 can be connected in a binding mode.
In this embodiment, the fixing connection piece 400 further includes two first nuts 430, the binding band 410 is a steel wire, two ends of the steel wire are provided with threads, the two first nuts 430 are respectively sleeved on two ends of the binding band 410, the two first nuts 430 are rotated, and the two first nuts 430 can push the pressing sheet 420 to be pressed on the ends of the steel bar anchor rod 200.
In this manner, the compression plate 420 can be conveniently compressed on the reinforcing bar stock 200. Of course, in other embodiments, the two ends of the strap 410 may be anchored or knotted within the perforations.
The apparatus also preferably includes a stabilizing member 500, the stabilizing member 500 being connected to the exposed end of the rebar anchor 200 and being supportable at the end of the seal 300 remote from the flashing 100.
Specifically, the stabilizing member 500 is a tightening nut, and the tightening nut thread set is disposed at the exposed end of the steel bar anchor 200, and the tightening nut can be rotated to abut against the sealing member 300. When the seal 300 is mounted, the seal 300 can be abutted against the seal 300 only by rotating the jacking nut, so that the position of the seal 300 is fixed.
As another preferred embodiment, the secondary reinforcement 3 is a screw reinforcement. When the secondary lining steel bar 3 is a screw-thread steel bar, the friction force between the secondary lining steel bar 3 and the exposed ends of the connecting band and the steel bar anchor rod 200 can be increased, thereby improving the stability of the fixed connection.
As a more preferable embodiment, the steel bar anchor rod 200 can be directly made of a screw thread steel bar, and inserting screw threads into the steel bar anchor rod 200 can increase the anchoring effect of the steel bar anchor rod 200 and the rock, and meanwhile, the materials are conveniently obtained.
The specific installation method adopting the device comprises the following steps:
when the construction of the second lining steel bar of the oversized-section tunnel is carried out, after the primary support is finished and the waterproof board 100 is installed on the concrete layer 2 of the surrounding rock 1, an anchoring hole is drilled from the outer side of the waterproof board 100 to the inner side of the surrounding rock 1, then the steel bar anchor rod 200 is inserted into the anchoring hole, and grouting is carried out in the anchoring hole, so that the anchor rod reinforcement function is realized;
Then, the plastic sealing piece 300 is sleeved on the exposed end of the steel bar anchor rod 200, the plastic sealing piece 300 is rotated until the plastic sealing piece 300 approaches the waterproof board 100, then cementing agent is coated on the surface of the waterproof board 100, and the plastic pad is cemented with the waterproof board 100, so that the sealing and waterproof effects of the waterproof board 100 and the steel bar anchor rod 200 are achieved; then, the exposed end of the steel bar anchor rod 200 is bound with the secondary lining steel bar 3 by using a steel wire bar, then the pressing sheet 420 is sleeved at the two ends of the steel wire bar, finally, the two first nuts 430 are rotated, and the pressing sheet 420 is pressed on the steel bar anchor rod 200, so that the installation of the whole device is completed.
By adopting the device, the device can not only stabilize the general quantity of steel bars of the tunnel vault two liners, but also give consideration to the waterproof function of the anchor rod and the two liners, thereby greatly improving the safety of the engineering structure.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. A waterproof two lining reinforcing bar securing device of tunnel vault, characterized by comprising:
The waterproof board is tightly attached to the concrete layer of the surrounding rock;
The steel bar anchor rod sequentially passes through the waterproof plate and the concrete layer, is inserted into the surrounding rock and is anchored with the surrounding rock and the concrete layer through anchor pulp;
The sealing piece is hermetically sleeved at the exposed end of the steel bar anchor rod and can seal the waterproof plate; and
The fixed connecting piece is used for connecting and fixing the two lining steel bars with the exposed end of the steel bar anchor rod;
The fixed connection piece comprises a binding band and a pressing sheet, the exposed end of the steel bar anchor rod and the two lining steel bars are arranged in a crossing mode, threads are arranged at two ends of the binding band, the middle part of the binding band is sleeved with the exposed end of the steel bar anchor rod, two ends of the binding band are located at two sides of the exposed end of the steel bar anchor rod after bypassing the two lining steel bars, perforation holes are formed in two ends of the pressing sheet, the pressing sheet is sleeved with the two ends of the binding band through the perforation holes, and the two ends of the binding band can be fixed in the two perforation holes respectively.
2. The tunnel vault waterproof two-lining steel bar stabilizing device according to claim 1, wherein the sealing element is a plastic pad, the exposed end of the steel bar anchor rod is provided with threads, and the plastic pad is connected with the exposed end of the steel bar anchor rod through the threads.
3. The tunnel vault waterproof two-lining steel bar stabilizing device according to claim 1, wherein the fixed connecting piece further comprises two first nuts, the binding band is a steel wire rod, threads are arranged on two end portions of the steel wire rod, the two first nuts are respectively sleeved on two end portions of the binding band, the first nuts are rotated, and the two first nuts can push the pressing sheet to be pressed on the end portions of the steel bar anchor rods.
4. A tunnel vault waterproofing double lined steel bar stabilizer according to claim 3, further comprising a stabilizing member connected to the exposed end of said steel bar anchor and supportable at the end of said sealing member remote from said flashing.
5. The tunnel vault waterproof two-lining steel bar stabilizing device according to claim 4, wherein the stabilizing piece is a jacking nut, the jacking nut thread suite is arranged at the exposed end of the steel bar anchor rod, and the jacking nut can be abutted against the sealing piece by rotating.
6. The tunnel vault waterproof secondary lining steel bar stabilizing device according to claim 1, wherein the secondary lining steel bars are screw-thread steel bars.
7. The tunnel vault waterproof double-lined steel bar stabilizing device according to claim 1, wherein the steel bar anchor is a screw-thread steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322695114.XU CN221096559U (en) | 2023-10-08 | 2023-10-08 | Waterproof two lining reinforcing bar securing device of tunnel vault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322695114.XU CN221096559U (en) | 2023-10-08 | 2023-10-08 | Waterproof two lining reinforcing bar securing device of tunnel vault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096559U true CN221096559U (en) | 2024-06-07 |
Family
ID=91329085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322695114.XU Active CN221096559U (en) | 2023-10-08 | 2023-10-08 | Waterproof two lining reinforcing bar securing device of tunnel vault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096559U (en) |
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2023
- 2023-10-08 CN CN202322695114.XU patent/CN221096559U/en active Active
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