CN111140262A - Movable device for quickly positioning two lining steel bars in tunnel - Google Patents
Movable device for quickly positioning two lining steel bars in tunnel Download PDFInfo
- Publication number
- CN111140262A CN111140262A CN202010143043.0A CN202010143043A CN111140262A CN 111140262 A CN111140262 A CN 111140262A CN 202010143043 A CN202010143043 A CN 202010143043A CN 111140262 A CN111140262 A CN 111140262A
- Authority
- CN
- China
- Prior art keywords
- steel bar
- layer
- steel bars
- longitudinal
- positioning
- Prior art date
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 160
- 239000010959 steel Substances 0.000 title claims abstract description 160
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 60
- 230000003014 reinforcing effect Effects 0.000 description 16
- 238000010276 construction Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 7
- 239000011241 protective layer Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a movable device for quickly positioning a secondary lining steel bar of a tunnel, which is characterized in that a longitudinal steel bar penetrates into a longitudinal steel bar positioning hole at the other end along the longitudinal steel bar positioning hole, steel bar interval positioning fixtures are arranged on inner and outer layers of longitudinal steel bars according to the designed interval of circumferential steel bars, the inner and outer layers of circumferential steel bars are arranged on the steel bar interval positioning fixtures along the outer edge of the longitudinal steel bar, the longitudinal steel bars, the circumferential steel bars and the erection steel bars are welded into a whole again, and finally, a steel bar positioning block is connected with the inner layer of longitudinal steel bars to finish the binding work of the secondary lining steel bars of the tunnel, thereby not only ensuring the distance between the double layers of.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a device capable of movably and quickly positioning a secondary lining steel bar of a tunnel.
Background
In the construction of tunnel engineering with poor surrounding rock, the accurate positioning of the space between two lining steel bar layers is always a difficult problem for restricting the quality of two lining construction. At present, the construction of two common lining steel bars generally adopts a trolley to carry out construction and the trolley structure is very simple, namely, the trolley has the function of providing a shelf operation platform for workers. The mode of location muscle is mostly adopted in the reinforcing bar location now, if the operation is not good just easy to puncture the waterproof layer and 20-30 m's reinforcing bar is more difficult through artifical accurate positioning, leans on the reinforcing bar of preliminary bracing one side often to press on the waterproof layer because of warping, makes it not have the protective layer when concreting, and leans on the inside reinforcing bar protective layer of tunnel clearance and the interval of two-layer reinforcing bar all to be difficult to control for this secondary lining's reinforcing bar construction quality is relatively poor. The phenomenon generally exists in the prior art at present, and becomes a common fault and hidden trouble of tunnel engineering quality.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a movable device for quickly positioning the secondary lining reinforcing steel bars of the tunnel, which can ensure that the construction of the lining reinforcing steel bars of the tunnel is quick, convenient, efficient and accurate, and the construction quality of the interlayer spacing of the lining reinforcing steel bars is ensured.
In order to achieve the technical purpose, the technical scheme of the invention is realized in such a way.
A movable device for quickly positioning a second lining steel bar in a tunnel comprises a primary concrete layer, a waterproof layer, a second lining concrete layer, a movable portal frame, a pulley, a steel rail, a second lining template trolley, a longitudinal steel bar positioning plate, an outer layer longitudinal steel bar positioning hole, an inner layer longitudinal steel bar positioning hole, an outer layer longitudinal steel bar, an inner layer longitudinal steel bar, an outer layer circumferential steel bar, an inner layer circumferential steel bar, a steel bar positioning block and a steel bar interval positioning clamp; the inner side of the primary concrete layer is a waterproof layer, the inner side of the waterproof layer is a two-lining concrete layer, the movable portal frame is arranged in the tunnel, four corners at the bottom end of the movable portal frame are provided with pulleys, steel rails are arranged below the pulleys, the rear side of the movable portal frame is a two-lining template trolley, two lining positions at the front end and the rear end of the movable portal frame are longitudinal steel bar positioning plates, outer longitudinal steel bar positioning holes and inner longitudinal steel bar positioning holes are formed in the longitudinal steel bar positioning plates, outer longitudinal steel bars are installed in the outer longitudinal steel bar positioning holes, inner longitudinal steel bars are installed in the inner longitudinal steel bar positioning holes and connected with outer annular steel bars through steel bar spacing positioning clamps, the inner longitudinal steel bars are connected with the inner annular steel bars through steel bar spacing positioning clamps.
Furthermore, the movable door frame is provided with four layers of working platforms.
Furthermore, the number of the steel bar positioning blocks is 5, and the number of the steel bar positioning blocks is one for every 2 meters in the longitudinal direction.
Furthermore, the outer layer longitudinal steel bar positioning hole and the inner layer longitudinal steel bar positioning hole are designed positions for the inner layer steel bar longitudinal steel bar and the outer layer steel bar longitudinal steel bar of the tunnel secondary lining respectively.
Furthermore, the opening of the steel bar spacing positioning fixture is 2mm larger than the diameter of the circumferential steel bar.
Has the beneficial effects.
Compared with the prior art, this device penetrates two lining longitudinal reinforcement locating holes to two lining longitudinal reinforcement locating holes of the other end along two lining longitudinal reinforcement locating holes, in two lining, according to hoop reinforcing bar design interval installation reinforcing bar interval positioning fixture on the outer longitudinal reinforcement, with two lining insides, outer hoop reinforcing bar is installed to reinforcing bar interval positioning fixture along two lining longitudinal reinforcement outer fringe, again with longitudinal reinforcement, hoop reinforcing bar and the welding of setting up the reinforcing bar are a whole, connect the reinforcing bar locating piece at two lining inlayer longitudinal reinforcement at last, accomplish two lining reinforcing bar ligatures work in tunnel, not only guarantee double-deck reinforcing bar interval apart also improve work efficiency simultaneously, guarantee tunnel reinforcing bar protective layer thickness construction quality requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of the present invention.
Fig. 2 is a side view of the invention.
Fig. 3 is a side view of a tunnel.
Fig. 4A is a cross-sectional view.
Fig. 5B is a partially enlarged front view.
Fig. 6B is a partially enlarged side view.
In the figure: the steel bar positioning device comprises a primary concrete layer 1, a waterproof layer 2, a secondary lining concrete layer 3, a movable portal 4, pulleys 5, steel rails 6, a secondary lining template trolley 7, a longitudinal steel bar positioning plate 8, an outer layer longitudinal steel bar positioning hole 91, an inner layer longitudinal steel bar positioning hole 92, an outer layer longitudinal steel bar 101, an inner layer longitudinal steel bar 102, an outer layer circumferential steel bar 111, an inner layer circumferential steel bar 112, a steel bar positioning block 12 and a steel bar interval positioning clamp 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Referring to fig. 1-6, a movable rapid positioning device for secondary lining steel bars in a tunnel comprises a primary concrete layer 1, a waterproof layer 2, a secondary lining concrete layer 3, a movable portal 4, pulleys 5, steel rails 6, a secondary lining template trolley 7 longitudinal steel bar positioning plate 8, an outer layer longitudinal steel bar positioning hole 91, an inner layer longitudinal steel bar positioning hole 92, an outer layer longitudinal steel bar 101, an inner layer longitudinal steel bar 102, an outer layer circumferential steel bar 111, an inner layer circumferential steel bar 112, a steel bar positioning block 12 and a steel bar spacing positioning clamp 13; the inner side of the primary concrete layer 1 is a waterproof layer 2, the inner side of the waterproof layer 2 is a second lining concrete layer 3, the movable portal 4 is arranged in a tunnel, pulleys 5 are arranged at four corners at the bottom end of the movable portal 4, a steel rail 6 is arranged below the pulleys 5, a second lining template trolley 7 is arranged at the rear side of the movable portal 4, the two lining positions at the front end and the rear end of the movable portal 4 are longitudinal steel bar positioning plates 8, outer longitudinal steel bar positioning holes 91 and inner longitudinal steel bar positioning holes 92 are formed in the upper surfaces of the longitudinal steel bar positioning plates 8, outer longitudinal steel bars 101 are arranged in the outer longitudinal steel bar positioning holes 91, inner longitudinal steel bars 102 are arranged in the inner longitudinal steel bar positioning holes 92, the outer longitudinal steel bars 101 are connected with outer annular steel bars 111 through steel bar spacing positioning clamps 13, the inner longitudinal steel bars 102 are connected with the inner annular steel.
The movable portal 4 is provided with four layers of working platforms; the number of the steel bar positioning blocks 12 is 5, and one steel bar positioning block is arranged every 2 meters in the longitudinal direction; the outer layer longitudinal steel bar positioning hole 91 and the inner layer longitudinal steel bar positioning hole 92 are designed positions for inner layer and outer layer longitudinal steel bars of the tunnel secondary lining respectively; the opening of the steel bar spacing positioning fixture 13 is 2mm larger than the diameter of the circumferential steel bar.
The working principle is as follows.
After one-die steel bar binding is finished, a two-lining trolley power system is started to enable a two-lining trolley to push a pulley 5 below a moving gantry 4 to move forwards along a steel rail 6 for one-die concrete pouring, meanwhile, a former-die steel bar is ready to be installed, a longitudinal steel bar positioning plate 8 is installed firstly, an outer-layer longitudinal steel bar 101 penetrates into an outer-layer longitudinal steel bar positioning hole 91 on the other-end longitudinal steel bar positioning plate 8 along an outer-layer longitudinal steel bar positioning hole 91 on the longitudinal steel bar positioning plate 8, steel bar interval positioning fixtures 13 are installed on the outer-layer longitudinal steel bar 101 according to the designed interval of the circumferential steel bars, an outer-layer circumferential steel bar 111 is installed to the steel bar interval positioning fixtures 13 along the outer edge of the outer-layer longitudinal steel bar 101, then the inner-layer longitudinal steel bar 102 penetrates into an inner-layer longitudinal steel bar positioning hole 92 on the other-end longitudinal steel bar positioning plate 8, and (3) installing the inner-layer circumferential steel bars 112 to the steel bar spacing positioning fixture 13 along the outer edge of the inner-layer longitudinal steel bars 102, welding the longitudinal steel bars, the circumferential steel bars and the erection steel bars into a whole, and finally connecting the steel bar positioning blocks 12 with the inner-layer longitudinal steel bars 102 to finish the binding work of the secondary lining steel bars in the tunnel.
After the longitudinal steel bar positioning plates 8 in the front and the back of the movable portal frame 4 of the device are removed, the power system of the second lining trolley 7 is started to enable the second lining trolley 7 to push the movable portal frame 4 of the device to move forward to a first mould, a concrete protective layer is determined through the steel bar positioning blocks 12, concrete of the mould is poured, and meanwhile, steel bars of the first mould are ready to be installed.
The above embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the patent of the invention should be defined by the claims and the equivalents of the technical features of the claims. I.e., equivalent alterations and modifications within the scope and range of equivalents of the invention, are also encompassed by the present patent.
Claims (5)
1. A movable device for quickly positioning a second lining steel bar in a tunnel comprises a primary concrete layer (1), a waterproof layer (2), a second lining concrete layer (3), a movable portal frame (4), pulleys (5), steel rails (6), a second lining template trolley (7), longitudinal steel bar positioning plates (8), outer layer longitudinal steel bar positioning holes (91), inner layer longitudinal steel bar positioning holes (92), outer layer longitudinal steel bars (101), inner layer longitudinal steel bars (102), outer layer circumferential steel bars (111), inner layer circumferential steel bars (112), steel bar positioning blocks (12) and steel bar spacing positioning clamps (13); the inner side of the primary concrete layer (1) is provided with a waterproof layer (2), the inner side of the waterproof layer (2) is provided with a second lining concrete layer (3), a movable portal frame (4) is arranged in the tunnel, pulleys (5) are arranged at four corners at the bottom end of the movable portal frame (4), a steel rail (6) is arranged below the pulleys (5), a second lining template trolley (7) is arranged at the rear side of the movable portal frame (4), longitudinal steel bar positioning plates (8) are arranged at the front end and the rear end of the movable portal frame (4), outer-layer longitudinal steel bar positioning holes (91) and inner-layer longitudinal steel bar positioning holes (92) are arranged above the longitudinal steel bar positioning plates (8), outer-layer longitudinal steel bars (101) are arranged in the outer-layer longitudinal steel bar positioning holes (91), inner-layer longitudinal steel bars (102) are arranged in the inner-layer longitudinal steel bar positioning holes (92), and the outer, the inner-layer longitudinal steel bars (102) are connected with the inner-layer annular steel bars (112) through steel bar spacing positioning clamps (13), and the inner-layer longitudinal steel bars (102) are connected with steel bar positioning blocks (12).
2. The device for movable rapid positioning of secondary lining steel bars in tunnel according to claim 1 is characterized in that the moving portal (4) is provided with four working platforms.
3. The device for movably and rapidly positioning secondary lining steel bars in a tunnel according to claim 1, wherein the steel bar positioning blocks (12) are circumferentially arranged by 5 and longitudinally arranged by every 2 meters.
4. The device for movably and rapidly positioning the reinforcing steel bars in the tunnel secondary lining according to claim 1, wherein the outer longitudinal reinforcing steel bar positioning holes (91) and the inner longitudinal reinforcing steel bar positioning holes (92) are designed for the inner and outer longitudinal reinforcing steel bars in the tunnel secondary lining respectively.
5. The device for movably and rapidly positioning the secondary lining steel bars in the tunnel according to claim 1, wherein the opening of the steel bar spacing positioning fixture (13) is 2mm larger than the diameter of the circumferential steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143043.0A CN111140262A (en) | 2020-03-04 | 2020-03-04 | Movable device for quickly positioning two lining steel bars in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143043.0A CN111140262A (en) | 2020-03-04 | 2020-03-04 | Movable device for quickly positioning two lining steel bars in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140262A true CN111140262A (en) | 2020-05-12 |
Family
ID=70528666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010143043.0A Pending CN111140262A (en) | 2020-03-04 | 2020-03-04 | Movable device for quickly positioning two lining steel bars in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140262A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441801A (en) * | 2020-05-25 | 2020-07-24 | 中交路桥建设有限公司 | Positioning clamp for controlling protective layer of secondary lining steel bar in tunnel and control method |
| CN113090285A (en) * | 2021-04-22 | 2021-07-09 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113236295A (en) * | 2021-04-25 | 2021-08-10 | 中铁二局第二工程有限公司 | Construction method of intensive tunnel embedded channel |
| CN113969795A (en) * | 2021-11-17 | 2022-01-25 | 山东大学 | Excavation supporting structure and construction method of tunnel |
-
2020
- 2020-03-04 CN CN202010143043.0A patent/CN111140262A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441801A (en) * | 2020-05-25 | 2020-07-24 | 中交路桥建设有限公司 | Positioning clamp for controlling protective layer of secondary lining steel bar in tunnel and control method |
| CN113090285A (en) * | 2021-04-22 | 2021-07-09 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113090285B (en) * | 2021-04-22 | 2022-12-02 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113236295A (en) * | 2021-04-25 | 2021-08-10 | 中铁二局第二工程有限公司 | Construction method of intensive tunnel embedded channel |
| CN113969795A (en) * | 2021-11-17 | 2022-01-25 | 山东大学 | Excavation supporting structure and construction method of tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111140262A (en) | Movable device for quickly positioning two lining steel bars in tunnel | |
| KR101048474B1 (en) | Piping Finish Assembly | |
| CN202240273U (en) | Assembling and welding follower fixture for side wall of stainless steel railway passenger carriage | |
| CN205000631U (en) | Reinforcing apparatus of outer shear force wall aluminum mould toe riser | |
| CN212079323U (en) | Movable device for quickly positioning two lining steel bars in tunnel | |
| CN208778016U (en) | Trolley is widened in tunnel | |
| CN113027493B (en) | Support structure for treating collapse and construction method | |
| CN206319893U (en) | A kind of middle buried water stop positioning chassis steel end mould | |
| CN210002396U (en) | modularized pile foundation dado | |
| CN109811725B (en) | Non-water-cut-off quick maintenance method for water delivery channel | |
| CN116335727A (en) | Construction method for rapid and accurate installation of tunnel primary support steel frame | |
| CN212716664U (en) | Shield constructs interval tunnel portal ring roof beam and does not have support steel mould subassembly | |
| CN111942547B (en) | Pre-lapping method for scaffold at butt joint of ship bulkhead | |
| CN113371582A (en) | Marine quick unhook frock of carrying on | |
| CN209942846U (en) | Quick positioner of portable tunnel lining reinforcing bar | |
| CN106761829A (en) | A kind of middle buried water stop positioning chassis steel end mould and Second Lining Construction method | |
| CN113404165A (en) | Assembled steel-concrete composite structure and manufacturing method thereof | |
| CN204126054U (en) | Just dismounting girder steel and the board-like combined type board house of rain-proof cover | |
| CN217680565U (en) | Aluminum alloy template for building | |
| CN105625708A (en) | Aluminum wood composite formwork system for buildings | |
| CN212652755U (en) | Rail drill jig | |
| CN109763668A (en) | A kind of roof boarding aperture and reperforating method | |
| CN218263495U (en) | Super high concrete cable tower reinforcing bar positioner | |
| CN104594509B (en) | The twin beams of a kind of movable plank house and the attachment structure of diagonal brace | |
| CN215759823U (en) | Back building partition wall, constructional column and bearing wall's drawknot structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |