CN208633847U - A kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation - Google Patents
A kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation Download PDFInfo
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- CN208633847U CN208633847U CN201820936065.0U CN201820936065U CN208633847U CN 208633847 U CN208633847 U CN 208633847U CN 201820936065 U CN201820936065 U CN 201820936065U CN 208633847 U CN208633847 U CN 208633847U
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- corrugated steel
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- corrugated
- dome
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Abstract
The utility model discloses a kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation, it includes dome corrugated steel, and stalk corrugated steel, steel mesh, stalk end pours pedestal concrete, embeds channel steel and anchor bolt.Dome corrugated steel is successively bolted with stalk corrugated steel, splicing cyclization.Injected hole is arranged in the middle part of dome corrugated steel and stalk corrugated steel, and Superfluid state concrete is perfused between each corrugated steel and country rock.The utility model uses ripple steel-concrete combined structure, it can satisfy the requirement of the supporting of newly built tunnels and the maintenance in disease tunnel, meanwhile the multiple parameters such as the thickness of all kinds of corrugated steels, the size of unit sheet bar and radian can be adjusted according to concrete engineering situation in structure, strong applicability.Technical solutions of the utility model, which have, improves constructing tunnel work efficiency, reduces tunnel O&M cost and the advantages such as rapid reinforcement and maintenance.
Description
Technical field
It is related to being suitable for circular arch stalk formula tunnel the utility model relates to tunnel-liner support construction applications, especially one kind
The corrugated steel supporting construction of full face tunneling.
Background technique
It is rigid that vcehicular tunnel generallys use the flexible preliminary bracing binding reinforcement concrete based on anchor pole and gunite concrete
Property two lining composite linings, to make full use of country rock self-bearing capacity as core concept.
Many materials such as there are thickness for composite lining itself greatly, construction complexity, construction machinery requirement height, cracking resistance difference
Problem.Vcehicular tunnel section is big simultaneously, and liner structure is various informative, and geological conditions is uncertain big, is also easy to produce construction not
Specification causes the various defects in construction, such as: not enough, thickness of tunnel linings is directly thinned in deficient dig for out break control；It backbreaks backfill
Leakiness, leads to lining cutting back cavity etc., and the deficiency of lining thickness and the cavity of behind change the force-bearing situation of liner structure, hold
The stress destruction of liner structure is easily led to, while liner structure is section construction, adjacent lining cutting section is respectively independent, bears country rock lotus
Discontinuity when load, it would therefore be highly desirable to provide a kind of novel fabricated tunnel lining structure come such issues that solve.
Summary of the invention
The utility model is big for liner structure thickness existing in the prior art, globality poor, and speed of application is slow etc. asks
Topic, provides that a kind of speed of application is fast, mechanical property is good, O&M expense is low is suitable for newly built tunnels supporting and disease tunnel maintenance
Corrugated steel supporting construction structure.
It is a kind of suitable for circular arch stalk formula full section of tunnel to realize that the technical solution of the present utility model purpose is to provide
The corrugated steel supporting construction of excavation, it includes dome corrugated steel, stalk corrugated steel, steel mesh, shear connector；It is described
Dome corrugated steel three pieces of properties of arched corrugated steel are mutually lapped fixed formation by bolt, dome corrugated steel and stalk wave
Line steel plate is bolted；Dome corrugated steel both ends overlap joint trough at be equipped with vertically to connection reinforcing bar, steel mesh
By connection reinforcement welding in the back side of dome corrugated steel；It is welded at the back side trough of dome corrugated steel and stalk corrugated steel
Shear connector (12)；Stalk corrugated steel is connected with channel steel by horizontal direction anchor bolt, and channel steel passes through vertically to anchor bolt and base
Seat is connected；Dome corrugated steel, stalk corrugated steel both ends be respectively equipped with flange, longitudinally through flanged joint；Each wave
Injected hole, concrete perfusion between corrugated steel and country rock is arranged in the middle part of line steel plate.
The steel mesh is bound by several circumferential arch reinforcing bars and several longitudinal reinforcements.
Compared with prior art, the utility model has the beneficial effects that
1. the utility model is provided using corrugated steel itself as template, production dedicated trolley is not needed, trolley is reduced
Application cost；Supporting construction reduces the reinforcing bar usage amount in concrete, can be prefabricated in outfield, and the scene that do not need carries out reinforcing bar and ties up
It pricks, reduces labor intensity of workers, improve speed of application, be conducive to improve construction quality.
2. supporting construction provided by the utility model reduces the thickness of tunnel-liner, reduce country rock excavated volume, saves
Engineering cost.Meanwhile lining cutting outermost is corrugated steel, has preferable globality, ductility, free from flaw is isotonic on lining cutting surface
Leak paths；Even if still ensuring that tunnel has preferable environment in the case where crack occurs in inner concrete.
3. lining cutting can be used prefabrication, the construction method of in-site installation and slip casting, it can be achieved that tunnel-liner quick dimension
It repairs.
Detailed description of the invention
Fig. 1 is a kind of corrugated steel suitable for circular arch stalk formula tunnel full-section excavation provided by the embodiment of the utility model
The structural schematic diagram of supporting construction.
Fig. 2 is a kind of corrugated steel suitable for circular arch stalk formula tunnel full-section excavation provided by the embodiment of the utility model
The corrugated steel bottom plate longitudinal cross-section structure chart of supporting construction.
Fig. 3 is a kind of corrugated steel suitable for circular arch stalk formula tunnel full-section excavation provided by the embodiment of the utility model
The stalk corrugated steel and pedestal attachment structure schematic diagram of supporting construction.
Label in attached drawing is described below: 1. steel meshes, and 2. just serve as a contrast concrete, 3. top arcuate corrugated steels, 4. connections
Reinforcing bar, 5. injected holes, 6. Superfluid state concretes, 7. stalk corrugated steels, 8. side arched corrugated steel plates, the connection of 9. corrugated steels
Node, 10. pedestals, 11. corrugated steel bottom plates, 12. shear connectors, 13. horizontal anchor bolts, 14. substrate channel steels, 15. vertical anchors
Bolt.
Specific embodiment
Technical solutions of the utility model are described in further detail with reference to the accompanying drawings and examples.
Embodiment 1
Referring to attached drawing 1, it is a kind of ripple suitable for circular arch stalk formula tunnel full-section excavation provided in this embodiment
Steel supporting construction schematic diagram has been arranged circumferentially five blocks of steel plates, including dome corrugated steel and two blocks of stalk corrugated steels along tunnel
7, dome corrugated steel connects spiral shell by corrugated steel with two pieces of side arched corrugated steel plates 8 by top arcuate corrugated steel 3
Bolt 9 connects into dome-shaped, and two pieces of side arched corrugated steel plates 8 are connect with two blocks of stalk corrugated steels 7 by corrugated steel respectively again
Bolt 9 connects, and forms corrugated steel supporting construction；Be equipped at overlapped at the both ends of three pieces of dome corrugated steels trough vertically to
Reinforcing bar 4 is connected, steel mesh 1 is bound by several circumferential arch reinforcing bars and several longitudinal reinforcements, four angles of every piece of steel mesh
Point by four vertically to connection reinforcing bar 4, respectively with formed dome three pieces of corrugated steels back side weld.Connect reinforcing bar
It is made for several hot-rolled reinforced bars by i.e. scale cun；The both ends of five pieces of corrugated steels are each provided with flange, longitudinally through flanged joint；
Injected hole 5 is respectively set at the middle part of every piece of top arcuate corrugated steel 3, side arched corrugated steel plate 8 and stalk corrugated steel 7,
Superfluid state concrete 6 is perfused between each corrugated steel and country rock, outermost layer is just to serve as a contrast concrete 2.The bottom end of two blocks of stalk corrugated steels 7
It is fixed on by connector in the concrete of pedestal 10.
Referring to attached drawing 2, it is the vertical of corrugated steel bottom plate used in corrugated steel supporting construction provided in this embodiment
To cross section structure figure；It includes top arcuate corrugated steel, side that shear connector 12, which is respectively arranged at each corrugated steel bottom plate 11(,
Arched corrugated steel plate and stalk corrugated steel) back side trough at.In the present embodiment, shear connector is several hot-rolled reinforced bars
It is made by i.e. scale cun 90-degree bent, is welded with each corrugated steel.
In the present embodiment, pedestal 10 is reinforced concrete structure；Bolt is using high-strength bolt, generally higher than 8.8
Grade, and carry out hot galvanizing preservative treatment.
The Superfluid state concrete that the present embodiment uses, as in the original concrete that the slump of premixing is 8~12 cm
In, the suitable fluidizing reagent of people is mixed, by the stirring of 1~5 min, the slump of concrete is made to increase to 20~22 cm, energy immediately
The concrete flowed as water.
Referring to attached drawing 3, it is a kind of ripple suitable for circular arch stalk formula tunnel full-section excavation provided in this embodiment
The stalk corrugated steel and pedestal attachment structure schematic diagram of steel supporting construction；Stalk corrugated steel 7 and channel steel 14 pass through horizontal direction anchor
Bolt 13 is connected, and stalk corrugated steel by being fixed in the concrete of pedestal 10 to anchor bolt 15 by channel steel 14 vertically.
The multiple parameters such as the thickness of all kinds of corrugated steels, the size of unit sheet bar and radian can be according to specific in above structure
Project situation is adjusted, strong applicability.
A kind of tool of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation provided in this embodiment
Body implementation steps are as follows:
Step 1, by the over-the-counter prefabricated one piece of supporting corrugated steel top arcuate corrugated steel 3 of design parameter, two pieces of side arches
Shape corrugated steel 8 and two pieces of stalk corrugated steels 7, as unit of 1 m width, i.e., longitudinal length is 1 m, each corrugated steel both ends
It is welded with the flange connect for group；The centre of five pieces of corrugated steel wooden partitions has an injected hole 5 for concrete perfusion, and five
Shear connector 12 is welded at the back side trough of block corrugated steel；
Step 2, over-the-counter three pieces of steel meshes 1 for processing dome corrugated steel, every piece of steel mesh is by several circumferential arches
Reinforcing bar and several longitudinal reinforcements are bound, four angle points by four vertically to connection reinforcing bar 4 respectively with dome three
The welding of block corrugated steel.
Step 3, tunnel surrounding are excavated to design hole diameter, just spray 4 cm thickness and just serve as a contrast concrete 2, then spray three modified milks
Change pitch as waterproof layer；
Step 4 pours C30 concrete and forms pedestal 10, substrate channel steel 14 is placed in pedestal concrete；
Step 5 installs stalk corrugated steel arch 7, is anchored using horizontal anchor bolt 13 with substrate channel steel 14, pours residue
Base concrete forms closed area in corrugated steel bottom；
Step 6 successively installs three pieces of corrugated steels of dome, connects bolt 9 by corrugated steel and connects cyclization；
Step 7, it is longitudinal successively assembled by step 4~step 6, but each ring that longitudinal upper lap position is different, i.e., adjacent
Fissure of displacement splicing；Consolidation service distance is 3 m；
Step 8, the gap smearing structure glue between the lateral surface and first lining of one Pin corrugated steel arch ring of outermost, to be formed
Side-closed region, one Pin corrugated steel of most inner side utilizes area face closure, or is closed with structure glue；
Step 9, the closed high-strength slightly expanded concrete 6 of completion after-pouring superfluidity type, pours, directly since the abutment wall of two sides
There is slurries spilling to top two sides corrugated steel injected hole, then carry out slip casting from top two sides corrugated steel injected hole respectively, until having
Slurries are overflowed from top injected hole, finally by grouting port supplementary irrigation at vault, after the perfusion for completing concrete, obtain a kind of be applicable in
In the corrugated steel supporting construction of circular arch stalk formula tunnel full-section excavation.
Claims (2)
1. a kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation, it is characterised in that: it includes circle
Arch corrugated steel, stalk corrugated steel, steel mesh, shear connector；The dome corrugated steel is by bolt by three pieces
Properties of arched corrugated steel is mutually lapped fixed formation, and dome corrugated steel is bolted with stalk corrugated steel (7)；Dome
Corrugated steel both ends overlap joint trough at be equipped with vertically to connection reinforcing bar (4), steel mesh (1) by connection reinforcing bar (4) welding
In the back side of dome corrugated steel；Shear connector (12) are welded at the back side trough of dome corrugated steel and stalk corrugated steel；
Stalk corrugated steel (7) is connected with channel steel (14) by horizontal direction anchor bolt (13), and channel steel (14) passes through vertically to anchor bolt (15)
It is connected with pedestal (10)；Dome corrugated steel, stalk corrugated steel (7) both ends be respectively equipped with flange, longitudinally through method
Orchid connection；Injected hole (5) are arranged in the middle part of each corrugated steel, concrete perfusion (6) between corrugated steel and country rock.
2. a kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation according to claim 1,
It is characterized by: the steel mesh (1) is bound by several circumferential arch reinforcing bars and several longitudinal reinforcements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936065.0U CN208633847U (en) | 2018-06-18 | 2018-06-18 | A kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936065.0U CN208633847U (en) | 2018-06-18 | 2018-06-18 | A kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation |
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| CN208633847U true CN208633847U (en) | 2019-03-22 |
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| CN201820936065.0U Expired - Fee Related CN208633847U (en) | 2018-06-18 | 2018-06-18 | A kind of corrugated steel supporting construction suitable for circular arch stalk formula tunnel full-section excavation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915734A (en) * | 2018-06-18 | 2018-11-30 | 苏州大学 | A kind of corrugated steel-Combined concrete supporting construction and its construction method |
| CN113931664A (en) * | 2021-10-15 | 2022-01-14 | 中国铁建重工集团股份有限公司 | Assembled arch steel construction |
| CN114148221A (en) * | 2021-11-22 | 2022-03-08 | 兰州铁道设计院有限公司 | Contact net hanging post fixing structure for operating railway open cut tunnel and construction method thereof |
-
2018
- 2018-06-18 CN CN201820936065.0U patent/CN208633847U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915734A (en) * | 2018-06-18 | 2018-11-30 | 苏州大学 | A kind of corrugated steel-Combined concrete supporting construction and its construction method |
| CN113931664A (en) * | 2021-10-15 | 2022-01-14 | 中国铁建重工集团股份有限公司 | Assembled arch steel construction |
| CN114148221A (en) * | 2021-11-22 | 2022-03-08 | 兰州铁道设计院有限公司 | Contact net hanging post fixing structure for operating railway open cut tunnel and construction method thereof |
| CN114148221B (en) * | 2021-11-22 | 2024-04-02 | 兰州铁道设计院有限公司 | Contact net hanging column fixing structure for operation railway open cut tunnel and construction method thereof |
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| 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: 20190322 Termination date: 20210618 |