CN204690785U - Long span section core in open-cut - Google Patents
Long span section core in open-cut Download PDFInfo
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- CN204690785U CN204690785U CN201520322746.4U CN201520322746U CN204690785U CN 204690785 U CN204690785 U CN 204690785U CN 201520322746 U CN201520322746 U CN 201520322746U CN 204690785 U CN204690785 U CN 204690785U
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Abstract
The utility model belongs to open-cut technical field, particularly Long span section core in a kind of open-cut.Long span section core in this open-cut, is characterized in that: comprise some parallel annulus, and described annulus connecting reinforcement connects, and annulus surrounding is evenly provided with bamboo plate, and bamboo plate outsourcing is provided with tin plate, two ends bamboo slab rubber 5 shutoff.The beneficial effects of the utility model are: not only cost comparatively aerated core and double-wall corrugated pipe core low, and conveniently can install fixing and ensure the intensity of core, work progress core mould is reliable and stable, ensure that the monolithic stability of constructing structure and on-the-spot safety.
Description
(1) technical field
The utility model belongs to open-cut technical field, particularly Long span section core in a kind of open-cut.
(2) background technology
At present, known Long span concrete cross section, for reducing deadweight, ensures intensity, the safety and stability of structure, adopts core process in the structure.Because the open cut tunnel had belongs to box culvert structure, as adopted aerated core construction, after construction, core can not take out the increase causing construction cost.
(3) summary of the invention
The utility model, in order to make up the deficiencies in the prior art, provides Long span section core in the open-cut that a kind of cost is low, installation convenient fixing, intensity are high.
The utility model is achieved by the following technical solution:
Long span section core in a kind of open-cut, it is characterized in that: comprise some parallel annulus, described annulus connecting reinforcement connects, and annulus surrounding is evenly provided with bamboo plate, and bamboo plate outsourcing is provided with tin plate, two ends bamboo slab rubber shutoff.
The spacing of described annulus is 1m.
Described connecting reinforcement is 3, is evenly arranged at the surrounding of annulus.
The screw-thread steel of described annulus Ф 12 is made, and the screw-thread steel of connecting reinforcement Ф 10 is made.
The beneficial effects of the utility model are: not only cost comparatively aerated core and double-wall corrugated pipe core low, and conveniently can install fixing and ensure the intensity of core, work progress core mould is reliable and stable, ensure that the monolithic stability of constructing structure and on-the-spot safety.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing 1 is main TV structure schematic diagram of the present utility model;
Accompanying drawing 2 is plan structure schematic diagram of the present utility model;
In figure, 1 annulus, 2 connecting reinforcements, 3 bamboo plates, 4 tin plates, 5 bamboo slab rubber.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises some parallel annulus 1, and annulus 1 connecting reinforcement 2 connects, and annulus 1 surrounding is evenly provided with bamboo plate 3, and bamboo plate 3 outsourcing is provided with tin plate 4, two ends bamboo slab rubber 5 shutoff.The spacing of annulus 1 is 1m.Connecting reinforcement 2 is 3, is evenly arranged at the surrounding of annulus 1.Annulus 1 screw-thread steel of Ф 12 is made, and connecting reinforcement 2 screw-thread steel of Ф 10 is made.
Adopt Long span section core in open-cut of the present utility model, first the screw-thread steel of Ф 12 is adopted to be made into the annulus 1 of required core size several, adopting the screw-thread steel of Ф 10 these annulus 1 to be coupled together composition afterwards, cylindrical (pitch arrangement of annulus 1 is 1m, the quantity of Ф 10 connecting reinforcement 2 is 3, a ring), cylindrical complete after again bamboo plate 3 is uniformly clouded in cylindrical surrounding, finally adopt tin plate 4 wrap up shaping.For ensureing core firm, not off normal in work progress, adopt the mode of reinforcement welding by core and main body reinforcing bar fixed.Fixation is: spacing 0.5 meter arranges that a reinforced steel bar ring is firm with main body reinforcement welding after locking core.In work progress, the concreting time-division four layers builds, and carries out observation to the high level of core and plan-position constantly and control.First floor concreting did not have 10cm at the bottom of core, after 1 ~ 1.5 hour after-pouring second layer concrete, second layer concreting thickness is 30cm, after 1 ~ 1.5 hour after-pouring third layer concrete, third layer concreting thickness is 30cm, after 1 ~ 1.5 hour after-pouring the 4th layer concrete, it was 30cm that the 4th layer concrete builds thickness.Face maintenance is received in press polish afterwards.Every layer concrete vibrates when building fully, and vibrating spear must not contact with core the breakage preventing core.
Adopt Long span section core in open-cut of the present utility model, cost obviously reduces: cost-per-meter valency is only 180 yuan, and to adopt double-wall corrugated pipe to do core cost-per-meter valency be 380 yuan, adopts aerated core price cost every meter to be 300 yuan.
Claims (4)
1. Long span section core in an open-cut, it is characterized in that: comprise some parallel annulus (1), described annulus (1) connecting reinforcement (2) connects, annulus (1) surrounding is evenly provided with bamboo plate (3), bamboo plate (3) outsourcing is provided with tin plate (4), two ends bamboo slab rubber (5) shutoff.
2. Long span section core in a kind of open-cut according to claim 1, is characterized in that: the spacing of described annulus (1) is 1m.
3. Long span section core in a kind of open-cut according to claim 1, is characterized in that: described connecting reinforcement (2) is 3, is evenly arranged at the surrounding of annulus (1).
4. Long span section core in a kind of open-cut according to claim 1, it is characterized in that: described annulus (1) is made with the screw-thread steel of Ф 12, connecting reinforcement (2) is made with the screw-thread steel of Ф 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322746.4U CN204690785U (en) | 2015-05-19 | 2015-05-19 | Long span section core in open-cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322746.4U CN204690785U (en) | 2015-05-19 | 2015-05-19 | Long span section core in open-cut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204690785U true CN204690785U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520322746.4U Active CN204690785U (en) | 2015-05-19 | 2015-05-19 | Long span section core in open-cut |
Country Status (1)
| Country | Link |
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| CN (1) | CN204690785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895109A (en) * | 2015-05-19 | 2015-09-09 | 济南城建集团有限公司 | Long-span section mandrel in open cut construction and treatment method thereof |
-
2015
- 2015-05-19 CN CN201520322746.4U patent/CN204690785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895109A (en) * | 2015-05-19 | 2015-09-09 | 济南城建集团有限公司 | Long-span section mandrel in open cut construction and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |