CN114592889A - Arch self-bearing type formwork for tunnel concrete construction pouring - Google Patents
Arch self-bearing type formwork for tunnel concrete construction pouring Download PDFInfo
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- CN114592889A CN114592889A CN202210506676.2A CN202210506676A CN114592889A CN 114592889 A CN114592889 A CN 114592889A CN 202210506676 A CN202210506676 A CN 202210506676A CN 114592889 A CN114592889 A CN 114592889A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000009415 formwork Methods 0.000 title claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000004258 portal system Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
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- 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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Mining & Mineral Resources (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 an arched self-bearing type template for tunnel concrete construction pouring, which comprises an upper template and a lower template hinged with the left end and the right end of the upper template, wherein a plurality of hydraulic rods I and a plurality of tightening rods are arranged at the hinged part of the upper template and the lower template; the bottom of the lower template is provided with a plurality of joists along the length direction, the joists are vertically provided with through holes, longitudinal beams are arranged in the through holes in a vertically movable mode, the upper parts of the longitudinal beams are provided with connecting plates, the joists are vertically provided with a first screw rod, the upper end of the first screw rod penetrates out of the connecting plates and then is screwed with a threaded sleeve, the tops of the longitudinal beams are fixedly connected with the same cross beam, at least two joists are fixedly provided with a second hydraulic rod, and the telescopic rods of the second hydraulic rods correspond to the cross beam; and a clamping seat corresponding to the clamping grooves on the two sides of the pouring layer is arranged below the longitudinal beam, and a tensioning device for applying acting force to the longitudinal beam is arranged on the clamping seat.
Description
Technical Field
The invention belongs to the technical field of tunnel pouring equipment, and particularly relates to an arched self-bearing type formwork for tunnel concrete construction pouring.
Background
At present, when roads, railways and high-speed railways built in China pass through mountain areas, tunnels need to be excavated, lining trolleys for concrete construction in tunnel construction are generally formed by welding steel plates, and welded support portals are uniformly distributed in the trolleys in order to enhance the support strength of the trolleys. The patent with the publication number of CN206801592U discloses a hydraulic lining platform truck for concrete placement of tunnel open cut tunnel, and it includes platform truck portal system, sideslip system, traveling system, cope match-plate pattern, side bolster and lead screw governing system, wherein the side of platform truck portal system is passed through lead screw governing system with the side bolster is connected, the cope match-plate pattern with the top of side bolster passes through the pin and connects. Because the steel plate welded supporting portal frames are more, the using space of construction is occupied, the demoulding in lining construction is influenced, the weight and the volume of the trolley are larger, the transportation is difficult, and the loading, unloading and installation of the trolley entering a construction site are more complicated. Aiming at the problems, the invention provides the arch-shaped self-bearing type formwork for pouring the tunnel concrete construction, which is convenient to install, construct and transfer, and is rapid and convenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing an arch-shaped self-bearing type formwork for tunnel concrete construction pouring, which is convenient to install, construct and transfer quickly and conveniently.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an arched self-bearing template for tunnel concrete construction pouring comprises an upper template and a lower template hinged with the left end and the right end of the upper template, wherein a plurality of first hydraulic rods and a plurality of tension rods are arranged at the hinged positions of the upper template and the lower template, and the two ends of the first hydraulic rods and the two ends of the tension rods are respectively hinged with the lower part of the upper template and the upper part of the lower template;
the bottom of the lower template is provided with a plurality of joists along the length direction, the joists are vertically provided with through holes, longitudinal beams are arranged in the through holes in a vertically movable mode, the upper parts of the longitudinal beams are provided with connecting plates, the joists are vertically provided with a first screw rod, the upper end of the first screw rod penetrates out of the connecting plates and then is screwed with a threaded sleeve, the tops of the longitudinal beams are fixedly connected with the same cross beam, at least two of the joists are fixedly provided with a second hydraulic rod, and the telescopic rods of the second hydraulic rods correspond to the cross beam;
and a clamping seat corresponding to the clamping grooves on the two sides of the pouring layer is arranged below the longitudinal beam, and a tensioning device for applying acting force to the longitudinal beam is arranged on the clamping seat.
The trolley comprises a square frame, a first support frame and a second support frame are fixedly arranged above and below the four corners of the frame respectively, a support plate is fixedly arranged on the first support frame at the front part, the top of the support plate is matched with the edge of the outer edge of the upper template, a guide cylinder is fixedly arranged on the first support frame at the rear part, and a support rod is arranged in the guide cylinder and can move up and down;
the support frame is characterized in that a connecting frame is fixedly arranged at the bottom of the support frame II, three supporting legs are evenly arranged at the bottom of the connecting frame in an annular mode, a yielding hole is formed in the support frame II and the connecting frame in the vertical direction, a supporting beam is arranged in the yielding hole, a hydraulic rod III is arranged between the top of the supporting beam and the top of the support frame II, a walking frame is arranged at the bottom of the supporting beam, a guide rail is arranged below the walking frame, and a transverse moving device is arranged between the walking frame and the supporting beam.
As an embodiment of the present invention, the traverse device includes a guide seat disposed on the top of the traveling frame, the guide seat is provided with a guide groove along the left-right direction, the bottom of the support beam is fixedly provided with a guide plate adapted to the guide groove, and a hydraulic rod iv is disposed between the guide plate and the guide seat.
As an embodiment of the invention, the guide rail is i-shaped, the bottom of the walking frame is provided with a plurality of walking wheels matched with the top of the guide rail, and the bottom of the walking frame is provided with side wheels at two sides of the guide rail through mounting arms.
As an implementation mode of the invention, the tensioning device comprises a mounting seat fixedly arranged on the outer side of the top of the clamping seat and a movable locking block arranged on the inner side of the top of the clamping seat, a plurality of second screws penetrate through the mounting seat and the locking block in parallel, the bottom end of the longitudinal beam is positioned between the mounting seat and the locking block, and locking nuts are arranged at two ends of the second screws.
As an embodiment of the present invention, a cylindrical support pillar is disposed at a bottom end of the longitudinal beam, and the support pillar is located between the mounting seat and the locking block.
As an embodiment of the present invention, the connecting plate is fixedly disposed on the top of the longitudinal beam, and the cross beam is fixedly disposed on the top of the connecting plate.
As an embodiment of the invention, a hydraulic rod five is arranged in the guide cylinder, and the hydraulic rod five is positioned between the bottom of the guide cylinder and the lower end of the support rod.
As an embodiment of the invention, the support rod is a square tube with an opening at the top, the tube opening of the support rod is obliquely arranged, a square tube-type support head is inserted at the tube opening of the support rod, the top of the support head is matched with the arc-shaped profile of the tunnel, and a baffle plate with the same inclination angle as the tube opening is arranged at the upper part of the support head.
As an embodiment of the invention, a plurality of reinforcing ribs are arranged on two sides of the supporting plate in a criss-cross manner, and the height of the reinforcing ribs longitudinally arranged on the inner side is gradually reduced from inside to outside and is matched with the arc-shaped edge of the upper template.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the arched self-bearing type template for tunnel concrete construction pouring is formed by hinging the upper template and the lower template, is convenient to mount and construct, is quick and convenient to transfer, realizes complete locking through the clamping seat and the clamping groove at the bottom of the lower template, realizes complete bearing of the upper template and the lower template, does not need to be additionally provided with a portal frame, and greatly simplifies the template structure. Through setting up the platform truck not only can realize the back-and-forth movement of template, the sideslip device that sets up on the platform truck can also realize adjusting about template, platform truck and guide rail, and the practicality is very strong.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a partially enlarged schematic view of fig. 1 at B.
Fig. 4 is a schematic view of the construction of the form and the trolley of the present invention.
Fig. 5 is a schematic structural view of the cart of the present invention.
Fig. 6 is a schematic view of the internal structure of the cart of the present invention.
Fig. 7 is a partially enlarged schematic view of C in fig. 6.
Fig. 8 is another angular configuration of fig. 7.
Fig. 9 is a schematic structural view of a guide cylinder, a support rod and a hydraulic rod in the trolley.
Fig. 10 is a front view schematically showing the construction of the die plate and the carrier in the present invention.
Fig. 11 is a partially enlarged schematic view at D in fig. 10.
Fig. 12 is a rear view schematically showing the structure of the support plate of fig. 10.
Wherein: 1 upper template, 2 lower templates, 3 hinged shafts, 4 hydraulic rods I, 5 tensioning rods, 6 joists, 7 longitudinal beams, 8 supporting columns, 9 connecting plates, 10 cross beams, 11 mounting plates, 12 screw rods I, 13 thread sleeves, 14 clamping seats, 15 mounting seats, 16 locking blocks, 17 screw rods II, 18 locking nuts, 19 hydraulic rods II, 20 trolley frames, 2001 supporting frames I, 2002 supporting plates, 21 supporting frames II, 22 connecting frames, 23 supporting legs, 24 supporting beams, 25 hydraulic rods III, 26 walking frames, 2601 guiding seats, 2602 guiding grooves, 2603 guiding plates, 2604 hydraulic rods IV, 27 walking wheels, 28 side wheels, 2801 mounting arms, 29 guide rails, 30 pouring layers, 31 clamping grooves, 32 guiding cylinders, 33 supporting rods, 3301 supporting heads, 3302 baffle plates and 34 hydraulic rods V.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail and fully with reference to the following embodiments.
As shown in fig. 1-3, 10 and 11, the arch-shaped self-supporting formwork for tunnel concrete construction pouring comprises an arc-shaped upper formwork 1 and an arc-shaped lower formwork 2 hinged with the left end and the right end of the upper formwork through a hinge shaft 3, wherein a plurality of first hydraulic rods 4 and a plurality of tension rods 5 are arranged at the hinged part of the upper formwork 1 and the lower formwork 2, and two ends of the first hydraulic rods 4 and the tension rods 5 are respectively hinged with the lower part of the upper formwork 1 and the upper part of the lower formwork 2; and a plurality of pouring windows are uniformly formed in the upper template 1 and the lower template 2. As shown in fig. 1, cope match-plate pattern 1 and lower bolster 2 are the last mould module and the lower mould module of U-shaped by the same cross-section of a plurality of widths respectively and form through vertical portion interconnect, wherein hydraulic stem 4 and tightening rod 5 all articulate the vertical portion junction of last mould module and lower mould module, in this embodiment, the template left and right sides respectively is equipped with two hydraulic stem 4, and two hydraulic stem 4 of homonymy set up respectively anterior and rear portion hinge department of template, tightening rod 5 is the screw thread telescopic link, is equipped with reverse internal thread cover and the threaded rod of two looks adaptations at both ends.
The bottom of the lower template 2 is provided with a plurality of joists 6 along the length direction, the joists 6 are vertically provided with through holes, longitudinal beams 7 are arranged in the through holes in a vertically movable mode, the upper parts of the longitudinal beams 7 are provided with connecting plates 9, the joists 6 are vertically provided with first screws 12, the upper ends of the first screws 12 penetrate out of the connecting plates 9 and then are screwed with threaded sleeves 13, the tops of the longitudinal beams 7 are fixedly connected with the same cross beam 10, no less than two joists 6 are fixedly provided with second hydraulic rods 19, and telescopic rods of the second hydraulic rods 19 correspond to the cross beam 10 and can jack the cross beam 10; in this embodiment, the connecting plate 9 is fixedly arranged at the top of the longitudinal beam 7, and the cross beam 10 is fixedly arranged at the top of the connecting plate 9. The vertical stress of the joist 6 is transmitted to the longitudinal beam 7 through the first screw 12 and the threaded sleeve 13, and then transmitted to the clamping groove 31 of the pouring layer 30 through the clamping seat 14.
Clamping seats 14 corresponding to the clamping grooves 31 on the two sides of the pouring layer 30 are arranged below the longitudinal beam 7, tensioning devices for applying horizontal acting force to the longitudinal beam 7 are arranged on the clamping seats 14, and the applying direction of the acting force faces the outer side of the formwork, namely the inner wall of the corresponding tunnel. The horizontal force of the joist 6 acts on the clamping seat 14 through the tension device, so that the force is transmitted to the pouring layer 30. Because the stress of the joist 6 in the vertical direction and the stress of the joist 6 in the horizontal direction are from the upper template 1 and the lower template 2, the joist 6 and the locked clamping seat 14 completely bear the upper template 1 and the lower template 2, and a portal does not need to be additionally arranged, so that the template structure is greatly simplified.
As shown in fig. 4-9 and 12, as a further optimization of the present invention, the present invention further includes a trolley, which can adjust the left and right positions of the formwork, the trolley and the guide rail by matching with the formwork, the trolley includes a square frame 20, a first support frame 2001 and a second support frame 21 are respectively fixed above and below four corners of the trolley frame 20, a support plate 2002 is fixed on the first support frame 2001 at the front part, the top of the support plate 2002 is matched with the outer end edge of the upper formwork 1, and plays a role in supporting and jacking when sealing the joint of the cast tunnel, a guide cylinder 32 is fixed on the first support frame 2001 at the rear part, a support rod 33 is arranged in the guide cylinder 32, and the support rod 33 is extended to prop against the top of the tunnel, so as to prevent the trolley and the formwork from moving.
The bottom of the second support frame 21 is fixedly provided with a connecting frame 22, the bottom of the connecting frame 22 is annularly and uniformly provided with three support legs 23, the inner vertical direction of the second support frame 21 and the connecting frame 22 is provided with a yielding hole, a support beam 24 is arranged in the yielding hole, a hydraulic rod III 25 is arranged between the top of the support beam 24 and the top of the second support frame 21, the bottom of the support beam 24 is provided with a walking frame 26, a guide rail 29 is arranged below the walking frame 26, and a transverse moving device is arranged between the walking frame 26 and the support beam 24.
In this embodiment, the traverse device includes a guide seat 2601 fixedly disposed at the top of the traveling frame 26, the guide seat 2601 is provided with a guide slot 2602 along the left-right direction, the bottom of the support beam 24 is fixedly provided with a guide plate 2603 adapted to the guide slot 2602, a hydraulic rod 2604 is disposed between the guide plate 2603 and the guide seat 2601, and the left-right relative position between the guide plate 2603 and the guide seat 2601 can be adjusted by the extension and contraction of the hydraulic rod 2604, i.e., the left-right relative position between the support beam 24 and the traveling frame 26 can be adjusted. The guide rail 29 is I-shaped, a plurality of traveling wheels 27 matched with the tops of the guide rail 29 are arranged at the bottom of the traveling frame 26, side wheels 28 are arranged on two sides of the guide rail 29 at the bottom of the traveling frame 26 through mounting arms 2801, and the guide rail 29 can be lifted up through the mounting arms 2801 and the side wheels 28. When the support beam 24 is lifted by the third hydraulic rod 25 with the support legs 23 close to each other, the guide rail 29 is lifted by the side wheels 28, and the left and right positions of the guide seat 2601, the walking frame 26 and the guide rail 29 can be changed under the action of the cross-sliding device; after the left and right positions of the guide seat 2601, the walking frame 26 and the guide rail 29 are adjusted, the hydraulic rod three 25 is extended (at the moment, the top of the upper template 1 does not contact the cast tunnel), until the guide rail 29 is adjacent, and the support leg 23 is separated from the ground; then the second hydraulic rod 19 jacks up the cross beam 10 and the longitudinal beam 7, so that the longitudinal beam 7 is separated from the clamping seat 14, the tensioning rod 5 is loosened, the first hydraulic rod 4 is shortened, and the lower template 2 is contracted inwards; at this time, on one hand, the front and back positions of the trolley and the template can be adjusted along the guide rail 29 through the travelling wheels 27, on the other hand, the left and right positions of the supporting legs 23, the supporting beam 24 and the trolley frame 20 can be adjusted through the transverse moving device, after the left and right positions of the supporting legs 23, the supporting beam 24 and the trolley frame 20 are adjusted, the hydraulic rods three 25 are shortened to lift the supporting beam 24 and the guide rail 29, the supporting legs 23 are adjacent to each other, the left and right positions of the guide seat 2601, the walking frame 26 and the guide rail 29 can be continuously adjusted through the transverse moving device, and the left and right positions of the supporting legs 23, the supporting beam 24 and the trolley frame 20 are adjusted through the transverse moving device, so that the reciprocating operation is carried out, the gradual adjustment of the left and right positions of the template and the trolley can be realized, and the actual operation efficiency is greatly improved at the turning positions of the tunnel and the like; after all adjustment is completed, the third hydraulic rod 25 is extended, one end of the upper template 1, which is provided with the supporting plate 2002, is abutted against the joint of the poured tunnel, the supporting rod 33 at the other end is extended and then abutted against the top of the tunnel, the first hydraulic rod 4 is extended, the lower template 2 is extended outwards, the tensioning rod 5 is locked, the longitudinal beam 7 is tensioned through the tensioning device, and further construction operation is performed on the next step.
In this embodiment, the tensioning device includes a mounting base 15 fixedly arranged on the outer side of the top of the clamping base 14 and a movable locking block 16 arranged on the inner side of the top of the clamping base 14, a plurality of second screw rods 17 are arranged in parallel on the mounting base 15 and the locking block 16 in a penetrating manner, the bottom end of the longitudinal beam 7 is located between the mounting base 15 and the locking block 16, locking nuts 18 are arranged at two ends of the second screw rods 17, and along with the tightening of the locking nuts 18, the locking block 16 contacts with the longitudinal beam 7, so that the longitudinal beam 7 is tensioned towards the outer side of the lower template 2 (the direction of the inner wall of the tunnel at one side corresponding to the lower template 2). The bottom end of the longitudinal beam 7 is provided with a cylindrical supporting column 8, the supporting column 8 is located between the mounting seat 15 and the locking block 16, and the supporting column 8 is tensioned towards the outer side of the lower template 2 through the second screw rod 17 and the locking nut 18, so that the template can realize self bearing.
As shown in fig. 9, a hydraulic rod five 34 is arranged in the guide cylinder 32, and the hydraulic rod five 34 is located between the bottom of the guide cylinder 32 and the lower end of the support rod 33. In this embodiment, the support rod 33 is open-topped square pipe, and the mouth of pipe slope sets up, the mouth of pipe department of support rod 33 inserts and is equipped with square cast support head 3301, support the arc profile looks adaptation in head 3301 top and tunnel, support head 3301 upper portion and be equipped with the baffle 3302 the same with mouth of pipe slope angle.
As shown in fig. 4, 10 and 12, a plurality of reinforcing ribs are arranged on both sides of the support plate 2002 in a criss-cross manner, and the height of the reinforcing ribs longitudinally arranged on the inner side is gradually reduced from inside to outside to be matched with the arc-shaped edge of the upper template 1, so that the edge of the upper template 1 is supported by the reinforcing ribs.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may still make modifications to the technical solutions described in the foregoing embodiments, or may substitute some technical features of the embodiments; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a tunnel concrete construction is pour and is used arch self-supporting formula template which characterized in that: the device comprises an upper template and a lower template hinged with the left end and the right end of the upper template, wherein a plurality of first hydraulic rods and a plurality of tension rods are arranged at the hinged part of the upper template and the lower template, and the two ends of the first hydraulic rods and the two ends of the tension rods are respectively hinged with the lower part of the upper template and the upper part of the lower template;
the bottom of the lower template is provided with a plurality of joists along the length direction, the joists are vertically provided with through holes, longitudinal beams are arranged in the through holes in a vertically movable mode, the upper parts of the longitudinal beams are provided with connecting plates, the joists are vertically provided with a first screw rod, the upper end of the first screw rod penetrates out of the connecting plates and then is screwed with a threaded sleeve, the tops of the longitudinal beams are fixedly connected with the same cross beam, at least two of the joists are fixedly provided with a second hydraulic rod, and the telescopic rods of the second hydraulic rods correspond to the cross beam;
and a clamping seat corresponding to the clamping grooves on the two sides of the pouring layer is arranged below the longitudinal beam, and a tensioning device for applying acting force to the longitudinal beam is arranged on the clamping seat.
2. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 1, wherein: the trolley comprises a square frame type trolley frame, a first support frame and a second support frame are fixedly arranged above and below the four corners of the trolley frame respectively, a support plate is fixedly arranged on the first support frame in the front part, the top of the support plate is matched with the edge of the outer edge of the upper template, a guide cylinder is fixedly arranged on the first support frame in the rear part, and a support rod is arranged in the guide cylinder and can move up and down;
the support frame is characterized in that a connecting frame is fixedly arranged at the bottom of the support frame II, three supporting legs are evenly arranged at the bottom of the connecting frame in an annular mode, a yielding hole is formed in the support frame II and the connecting frame in the vertical direction, a supporting beam is arranged in the yielding hole, a hydraulic rod III is arranged between the top of the supporting beam and the top of the support frame II, a walking frame is arranged at the bottom of the supporting beam, a guide rail is arranged below the walking frame, and a transverse moving device is arranged between the walking frame and the supporting beam.
3. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 2, wherein: the transverse moving device comprises a guide seat arranged at the top of the walking frame, guide grooves are formed in the guide seat in the left-right direction, guide plates matched with the guide grooves are fixedly arranged at the bottom of the support beam, and a hydraulic rod IV is arranged between the guide plates and the guide seat.
4. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 3, wherein: the guide rail is the I shape, walking frame bottom be equipped with a plurality ofly with the walking wheel of guide rail top looks adaptation, walking frame bottom is in through the installation arm the guide rail both sides are provided with the side wheel.
5. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 1, wherein: the tensioning device comprises a mounting seat fixedly arranged on the outer side of the top of the clamping seat and a locking block movably arranged on the inner side of the top of the clamping seat, a plurality of second screw rods are arranged on the mounting seat and the locking block in a penetrating mode in parallel, the bottom end of the longitudinal beam is located between the mounting seat and the locking block, and locking nuts are arranged at two ends of each second screw rod.
6. The arched self-bearing formwork for tunnel concrete construction pouring according to claim 5, wherein: the bottom end of the longitudinal beam is provided with a cylindrical support column, and the support column is located between the mounting seat and the locking block.
7. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 1, wherein: the connecting plate is fixedly arranged at the top of the longitudinal beam, and the cross beam is fixedly arranged at the top of the connecting plate.
8. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 2, wherein: and a hydraulic rod V is arranged in the guide cylinder and is positioned between the bottom of the guide cylinder and the lower end of the support rod.
9. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 2, wherein: the support rod is open-topped side's pipe, and the mouth of pipe slope sets up, support rod mouth of pipe department inserts and is equipped with square cast's support head, support the head top and the arc profile looks adaptation in tunnel, support first upper portion and be equipped with the baffle the same with mouth of pipe inclination.
10. The arched self-supporting formwork for tunnel concrete construction pouring according to claim 2, wherein: the two sides of the supporting plate are provided with a plurality of reinforcing ribs in a criss-cross mode, and the height of the reinforcing ribs longitudinally arranged on the inner side is gradually reduced from inside to outside and is matched with the arc-shaped edge of the upper template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506676.2A CN114592889B (en) | 2022-05-11 | 2022-05-11 | Arch-shaped self-bearing type formwork for tunnel concrete construction pouring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506676.2A CN114592889B (en) | 2022-05-11 | 2022-05-11 | Arch-shaped self-bearing type formwork for tunnel concrete construction pouring |
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| CN114592889A true CN114592889A (en) | 2022-06-07 |
| CN114592889B CN114592889B (en) | 2022-07-08 |
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