CN110617081A - Prefabricated inverted arch structure of highway tunnel assembled - Google Patents
Prefabricated inverted arch structure of highway tunnel assembled Download PDFInfo
- Publication number
- CN110617081A CN110617081A CN201910964795.0A CN201910964795A CN110617081A CN 110617081 A CN110617081 A CN 110617081A CN 201910964795 A CN201910964795 A CN 201910964795A CN 110617081 A CN110617081 A CN 110617081A
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- prefabricated
- inverted arch
- arch structure
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- 238000005336 cracking Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 11
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- 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 the technical field of highway tunnels, in particular to a highway tunnel assembled prefabricated inverted arch structure, wherein a flange plate is welded at the end part of a connecting member, a stiffening rib plate is welded on the connecting member and the flange plate, the connecting sleeve connects the end parts of two connecting members, the flange plate is fixed at the end part and the side surface of a prefabricated member A and a prefabricated member B by connecting bolts, an anti-cracking reinforcing steel bar net is arranged at the upper part and the lower part of the connecting member and the connecting sleeve, cast-in-place concrete is arranged on the connecting member, the connecting sleeve and the anti-cracking reinforcing steel bar net, pre-buried connecting reinforcing steel bars are arranged on the prefabricated member B, a hoisting hole and a grouting hole are arranged on the prefabricated member A and the prefabricated member B, and the pre-buried. Prefabricated component A and prefabricated component B accessible steel pipe concrete connecting elements high-speed joint, the inverted arch structure can in time exert bearing capacity, are favorable to the stability of tunnel cave body, have improved operating efficiency and operating personnel's safety.
Description
Technical Field
The invention relates to a prefabricated inverted arch structure, in particular to an assembled prefabricated inverted arch structure of a highway tunnel, and belongs to the technical field of highway tunnels.
Background
The traditional tunnel inverted arch lining structure construction is carried out by adopting a mode of manually binding reinforcing steel bars and template cast-in-place concrete on site. Due to the influence of factors such as lack of design and manufacturing standards of an inverted arch template, low on-site steel bar positioning accuracy, poor construction and maintenance environment and the like, the tunnel inverted arch construction often has the quality problems of cavities, non-compact zones, irregular structural shape, poor strength and appearance and the like; and the traditional inverted arch structure has various construction processes and high requirements on skilled workers, and often causes the problems of low construction speed, incapability of timely bearing lining, high material and labor cost and the like, so that the design of the highway tunnel assembly type prefabricated inverted arch structure is necessary.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a highway tunnel assembly type prefabricated inverted arch structure.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a prefabricated inverted arch structure of highway tunnel assembled, includes prefabricated component A, prefabricated component B, connecting elements, connecting sleeve, crack control reinforcing bar net, cast in situ concrete, pre-buried connecting reinforcement, grouting holes, hoisting hole and grouting holes, ring flange, stiffening rib board, connecting bolt and secondary lining.
The flange plate is welded at the end part of the connecting component, the stiffening rib plate is welded on the connecting component and the flange plate, the connecting sleeve connects the end parts of the two connecting components, the flange plate is fixed at the end part and the side surface of the prefabricated component A and the prefabricated component B by the connecting bolts, the anti-cracking reinforcing steel bar net is arranged at the upper part and the lower part of the connecting component and the connecting sleeve, the cast-in-place concrete is arranged on the connecting component, the connecting sleeve and the anti-cracking reinforcing steel bar net, the embedded connecting reinforcing steel bars are arranged on the prefabricated component B, the grouting holes are arranged on the connecting sleeve, the hoisting holes and the grouting holes are arranged on the prefabricated component A and the prefabricated component B, and the embedded connecting.
According to the technical scheme, the prefabricated component A of the highway tunnel prefabricated inverted arch structure is of a prefabricated concrete structure, connecting bolts are embedded at two ends and on the side face of the prefabricated component A, and are distributed according to hole positions of the flange plates and are uniformly embedded in the prefabricated component A.
According to the technical scheme, as further optimization, the prefabricated component B of the highway tunnel prefabricated inverted arch structure is a prefabricated concrete structure, connecting bolts are embedded in one end and the side face of the prefabricated component B, and are distributed according to hole positions of the flange plate and are uniformly embedded in the prefabricated component B.
As further optimization of the technical scheme, the connecting member of the prefabricated inverted arch structure for the highway tunnel is of a steel pipe concrete structure.
As a further optimization of the technical scheme, the end of the connecting sleeve of the highway tunnel assembly type prefabricated inverted arch structure is welded on the surface of the connecting member, a grouting hole is arranged at the top of the connecting sleeve, and grouting is performed after the connecting sleeve is connected with the connecting member.
As a further optimization of the technical scheme, the anti-cracking reinforcing mesh of the prefabricated inverted arch structure for the highway tunnel is paved on the upper and lower parts of the connecting member and the connecting sleeve.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the highway tunnel assembly type prefabricated inverted arch structure, the prefabricated component A and the prefabricated component B can be quickly connected through the steel pipe concrete connecting component, the inverted arch structure can timely exert the bearing capacity, the stability of a tunnel body is facilitated, and the operation efficiency and the safety of operators are improved.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
fig. 1 is a schematic structural diagram of an assembled prefabricated inverted arch structure of a highway tunnel.
Fig. 2 is a partially enlarged view of an assembled type prefabricated inverted arch structure C for a road tunnel according to the present invention.
Fig. 3 is a sectional view of a prefabricated part a1 of an assembled prefabricated inverted arch structure for a road tunnel according to the present invention.
Fig. 4 is a plan view of a prefabricated part a1 of an assembled prefabricated inverted arch structure for a road tunnel according to the present invention.
Fig. 5 is a sectional view of a prefabricated part B2 of an assembled prefabricated inverted arch structure for a road tunnel according to the present invention.
Fig. 6 is a plan view of a prefabricated part B2 of an assembled prefabricated inverted arch structure for a road tunnel according to the present invention.
Fig. 7 is a schematic structural diagram of a connecting member 3 of a prefabricated inverted arch structure for a highway tunnel according to the present invention.
Fig. 8 is a schematic connection diagram of a connecting member 3 and a connecting sleeve 4 of a highway tunnel prefabricated inverted arch structure.
Fig. 9 is a plan view of a flange plate 10 of a prefabricated inverted arch structure for a road tunnel according to the present invention.
Wherein: prefabricated part A1; prefabricated member B2; a connecting member 3; a connecting sleeve 4; an anti-cracking reinforcing mesh 5; casting concrete 6 in situ; embedding connecting steel bars 7; a grouting hole 8; the hoisting hole also serves as a grouting hole 9; a flange plate 10; a stiffening rib plate 11; a connecting bolt 12; and a secondary lining 13.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The invention discloses a prefabricated inverted arch structure for a road tunnel, which is shown in the accompanying drawings 1-9 and comprises: the prefabricated member A1, the prefabricated member B2, the connecting member 3, the connecting sleeve 4, the anti-cracking reinforcing mesh 5, cast-in-place concrete 6, pre-embedded connecting reinforcing steel bars 7, grouting holes 8, a hoisting hole and grouting hole 9, a flange plate 10, a stiffening rib plate 11, connecting bolts 12 and a secondary lining 13.
The flange plate 10 is welded at the end part of the connecting member 3, the stiffening rib plate 11 is welded on the connecting member 3 and the flange plate 10, the connecting sleeve 4 connects the end parts of the two connecting members 3, the connecting bolts 12 fix the flange plate 10 at the end part and the side surface of the prefabricated member A1 and the prefabricated member B2, the anti-cracking reinforcing mesh 5 is arranged at the upper part and the lower part of the connecting member 3 and the connecting sleeve 4, the cast-in-place concrete 6 is arranged on the connecting member 3, the connecting sleeve 4 and the anti-cracking reinforcing mesh 5, the embedded connecting reinforcing steel 7 is arranged on the prefabricated member B2, the grouting hole 8 is arranged on the connecting sleeve 4, the hoisting hole and grouting hole 9 is arranged on the prefabricated member A1 and the prefabricated member B2, and the embedded connecting reinforcing steel 7 connects the prefabricated member B2 with the.
The prefabricated part A1 is of a prefabricated concrete structure, connecting bolts are embedded at two ends and on the side face of the prefabricated part A1 and are distributed according to hole positions of the flange plate 10 and are uniformly embedded inside the prefabricated part A1.
The prefabricated component B2 is of a prefabricated concrete structure, connecting bolts are embedded at one end and the side face of the prefabricated component B2 and are distributed according to hole positions of the flange plate 10 and are uniformly embedded in the prefabricated component B2.
The connecting member 3 is a steel pipe concrete structure.
The end part of the connecting sleeve 4 is welded on the surface of the connecting component 3, a grouting hole 8 is arranged at the top of the connecting sleeve 4, and grouting is carried out after the connecting sleeve 4 is connected with the connecting component 3.
The anti-cracking reinforcing mesh 5 is laid on the upper and lower parts of the connecting member 3 and the connecting sleeve 4.
The connecting member 3 is connected to the end parts and the side surfaces of the prefabricated member A1 and the prefabricated member B2 through a flange plate 10 and a connecting bolt 12, cement slurry is poured between the connecting member 3 and the connecting sleeve 4 through a grouting hole 8, after the connecting member 3 and the connecting sleeve 4 are connected, anti-cracking reinforcing steel meshes 5 are paved up and down, after paving, cast-in-place concrete 6 is poured, so that the whole inverted arch structure is formed into a whole, the embedded connecting steel bars 7 are embedded at one end of the prefabricated member B2, and the prefabricated member B2 is connected with the secondary lining 13 through the embedded connecting steel bars 7; the prefabricated inverted arch structure is mainly formed by splicing a prefabricated part A1 and a prefabricated part B2, the prefabricated parts are connected through a steel pipe concrete structure, the steel pipe concrete, a prefabricated part A1 and a prefabricated part B2 are connected through embedded connecting bolts 12 and a flange plate 10, and after the connecting bolts 12 are connected, hoisting holes and grouting holes 9 are formed in the prefabricated part A1 and the prefabricated part B2. In order to improve the connection between the prefabricated part B2 and the cast-in-place secondary lining 13, embedded connecting steel bars 7 are embedded at one end of the prefabricated part B2.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a prefabricated inverted arch structure of highway tunnel assembled, includes prefabricated component A (1), prefabricated component B (2), connecting element (3), adapter sleeve (4), crack control reinforcing bar net (5), cast in situ concrete (6), pre-buried connecting reinforcement (7), slip casting hole (8), hoisting hole and slip casting hole (9), ring flange (10), stiffening rib board (11), connecting bolt (12) and secondary lining (13), its characterized in that: the flange plates (10) are welded at the end parts of the connecting members (3), the stiffening rib plates (11) are welded on the connecting members (3) and the flange plates (10), the connecting sleeves (4) connect the end parts of the two connecting members (3), the connecting bolts (12) fix the flange plates (10) at the end parts and the side surfaces of the prefabricated member A (1) and the prefabricated member B (2), the anti-cracking reinforcing mesh (5) is arranged at the upper part and the lower part of the connecting members (3) and the connecting sleeves (4), the cast-in-place concrete (6) is arranged at the connecting members (3), on adapter sleeve (4) and anti-cracking reinforcing bar net (5), pre-buried connecting reinforcement (7) set up on prefabricated component B (2), and injected hole (8) set up on adapter sleeve (4), and hoisting hole and injected hole (9) set up on prefabricated component A (1) and prefabricated component B (2), and pre-buried connecting reinforcement (7) are connected between prefabricated component B (2) and secondary lining (13).
2. The fabricated inverted arch structure for road tunnels according to claim 1, wherein: the prefabricated part A (1) is of a prefabricated concrete structure, connecting bolts are embedded at two ends and side faces of the prefabricated part A, are arranged according to hole positions of the flange plates (10), and are uniformly embedded in the prefabricated part A (1).
3. The fabricated inverted arch structure for road tunnels according to claim 1, wherein: the prefabricated part B (2) is of a prefabricated concrete structure, connecting bolts are embedded at one end and the side face of the prefabricated part B, are distributed according to hole positions of the flange plates (10), and are uniformly embedded in the prefabricated part B (2).
4. The fabricated inverted arch structure for road tunnels according to claim 1, wherein: the connecting member (3) is of a steel pipe concrete structure.
5. The fabricated inverted arch structure for road tunnels according to claim 1, wherein: the end part of the connecting sleeve (4) is welded on the surface of the connecting component (3), a grouting hole (8) is arranged at the top of the connecting sleeve (4), and grouting is carried out after the connecting sleeve (4) is connected with the connecting component (3).
6. The fabricated inverted arch structure for road tunnels according to claim 1, wherein: the anti-cracking reinforcing mesh (5) is laid on the upper and lower parts of the connecting member (3) and the connecting sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964795.0A CN110617081B (en) | 2019-10-11 | 2019-10-11 | Prefabricated inverted arch structure of highway tunnel assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964795.0A CN110617081B (en) | 2019-10-11 | 2019-10-11 | Prefabricated inverted arch structure of highway tunnel assembled |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110617081A true CN110617081A (en) | 2019-12-27 |
| CN110617081B CN110617081B (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910964795.0A Active CN110617081B (en) | 2019-10-11 | 2019-10-11 | Prefabricated inverted arch structure of highway tunnel assembled |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387119A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | Prefabricated assembled tunnel inverted arch, tunnel structure and its construction method |
| CN109763838A (en) * | 2019-03-13 | 2019-05-17 | 中铁第一勘察设计院集团有限公司 | Assembled inverted arch structure and its assembling method suitable for drill+blast tunnel |
| JP2019127692A (en) * | 2018-01-22 | 2019-08-01 | 戸田建設株式会社 | Joint structure of concrete members |
| CN110080797A (en) * | 2019-05-09 | 2019-08-02 | 黄河勘测规划设计研究院有限公司 | The board-like steel compound tube piece making method of full Baogang suitable for shield formula TBM |
-
2019
- 2019-10-11 CN CN201910964795.0A patent/CN110617081B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387119A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | Prefabricated assembled tunnel inverted arch, tunnel structure and its construction method |
| JP2019127692A (en) * | 2018-01-22 | 2019-08-01 | 戸田建設株式会社 | Joint structure of concrete members |
| CN109763838A (en) * | 2019-03-13 | 2019-05-17 | 中铁第一勘察设计院集团有限公司 | Assembled inverted arch structure and its assembling method suitable for drill+blast tunnel |
| CN110080797A (en) * | 2019-05-09 | 2019-08-02 | 黄河勘测规划设计研究院有限公司 | The board-like steel compound tube piece making method of full Baogang suitable for shield formula TBM |
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| Publication number | Publication date |
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| CN110617081B (en) | 2021-01-22 |
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