CN113294171B - Corrugated steel plate and UHPC combined assembled tunnel lining structure and construction method thereof - Google Patents
Corrugated steel plate and UHPC combined assembled tunnel lining structure and construction method thereof Download PDFInfo
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- CN113294171B CN113294171B CN202110581964.XA CN202110581964A CN113294171B CN 113294171 B CN113294171 B CN 113294171B CN 202110581964 A CN202110581964 A CN 202110581964A CN 113294171 B CN113294171 B CN 113294171B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 74
- 239000010959 steel Substances 0.000 title claims abstract description 74
- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 61
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 238000009412 basement excavation Methods 0.000 claims abstract description 8
- 239000011083 cement mortar Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/20—Special cross- sections, e.g. corrugated
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (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 assembled tunnel lining structure combining the corrugated steel plate and the UHPC comprises a multi-section lining unit, wherein the lining unit comprises an inverted arch positioned at the bottom of a tunnel, side wall sections are arranged at the left end and the right end of the inverted arch, arch top sections are erected between the tops of the two side wall sections, the side wall sections and the arch top sections respectively comprise a corrugated steel top plate and UHPC rib plate beams, cement mortar is filled between the corrugated steel top plate and an excavation surface of the tunnel to form an initial support of the tunnel, and cast-in-place concrete is filled between the corrugated steel top plate and the UHPC rib plate beams to form a permanent support of the tunnel. The utility model has simple structure, reasonable design and convenient construction, can be widely applied to tunnel structures, improves the construction efficiency and prolongs the service life.
Description
Technical Field
The utility model relates to an assembled tunnel lining structure combined by a corrugated steel plate and UHPC (ultra high performance concrete) and a construction method thereof.
Background
The tunnel is an important component of the national traffic infrastructure, and in order to prevent surrounding rocks from deforming or collapsing, a composite lining, namely primary support and secondary lining, is constructed by using materials such as reinforced concrete, section steel and the like along the periphery of the tunnel body under most conditions. Then, the existing tunnel has the defects of severe construction operation conditions, various construction procedures, difficult guarantee of construction quality, tunnel freeze damage, water leakage, lining cracking and the like, the operation and maintenance cost of the tunnel is improved, and the service life is shortened.
Disclosure of Invention
The utility model aims to provide an assembled tunnel lining structure combining a corrugated steel plate and UHPC, which has the advantages of reasonable structural design, convenient construction, shortened construction period, material saving, improved labor conditions and improved structural size precision and quality.
The technical scheme of the utility model is as follows: the assembled tunnel lining structure combining the corrugated steel plate and the UHPC comprises a multi-section lining unit, wherein the lining unit comprises an inverted arch positioned at the bottom of a tunnel, side wall sections are arranged at the left end and the right end of the inverted arch, arch top sections are erected between the tops of the two side wall sections, the side wall sections and the arch top sections respectively comprise a corrugated steel top plate and UHPC rib plate beams, cement mortar is filled between the corrugated steel top plate and an excavation surface of the tunnel to form an initial support of the tunnel, and cast-in-place concrete is filled between the corrugated steel top plate and the UHPC rib plate beams to form a permanent support of the tunnel.
Furthermore, the wave form steel roof comprises a plurality of wave form, and the spraying of one side towards the tunnel has waterproof material, the longitudinal arc line of wave form steel roof is unanimous with the outline in tunnel.
Further, the UHPC rib plate beam comprises a bottom plate, one or two rib plates are arranged on the bottom plate, the longitudinal arc line of the UHPC rib plate beam is consistent with the inner contour of the tunnel, when the number of the rib plates is 1, the rib plates and the bottom plate form an inverted T shape, and when the number of the rib plates is 2, the rib plates and the bottom plate form an inverted pi shape.
Furthermore, a plurality of anchor bolts are embedded in the rib plates, and the corrugated steel top plate is fixedly connected with the UHPC rib plate beam through the anchor bolts.
Furthermore, a steel reinforcement framework is arranged between the bottom plate and the rib plate.
Further, a grouting working hole is formed in the rib plate.
Furthermore, the inverted arch is of a prefabricated or cast-in-place reinforced concrete structure.
Furthermore, the inverted arch, the arch top segment and the two side wall segments are spliced through anchor rods, and waterproof sealing gaskets are arranged at the splicing positions.
Furthermore, the lining units are sequentially arranged in a ring-by-ring mode along the length direction of the tunnel, two adjacent UHPC rib plate beams are connected through a prestressed anchor rod, two adjacent corrugated steel roof plates are connected through a flange and a bolt, a waterproof sealing gasket is arranged at the connection position, and the splicing position of the two adjacent lining units is arranged in a staggered joint mode.
A construction method of an assembled tunnel lining structure suitable for a combination of a corrugated steel plate and UHPC comprises the following steps:
(1) according to the actual field condition and the technological requirements, after the full section of the tunnel is excavated, the inverted arch is cast in place or prefabricated and hoisted;
(2) prefabricating a corrugated steel top plate and a UHPC rib plate beam in a factory and conveying to a construction site;
(3) after the UHPC rib plate beam is maintained to reach the strength, connecting the corrugated steel top plate with the UHPC rib plate beam through the anchor bolts pre-embedded on the rib plates; conveying the vault segment and the two side wall segments formed after connection into a tunnel gallery for splicing;
(4) respectively installing the two side wall segments to the left end and the right end of the inverted arch;
(5) the vault sections are hung and assembled on beam supports of the two side wall sections to form an assembled tunnel lining which is connected with one another in a ring-to-ring mode along the length direction of the tunnel;
(6) splicing the splicing positions of the two side wall sections, the arch top section and the inverted arch by using anchor rods, and arranging waterproof sealing gaskets at the splicing positions;
(7) connecting bottom plates of two adjacent UHPC rib plate beams by using a prestressed anchor rod, connecting flanges of two adjacent corrugated steel top plates by using a high-strength bolt, and arranging a waterproof sealing pad at a splicing position;
(8) filling a gap between the corrugated steel top plate and the tunnel excavation surface with cement mortar to form a primary support of the tunnel;
(9) and an inner cavity between the common concrete cast-in-place corrugated steel top plate and the UHPC rib plate beam is adopted, so that a permanent supporting structure is formed, and construction and manufacturing are completed.
Compared with the prior art, the utility model has the following advantages: the utility model gives full play to the high shear resistance of the corrugated steel plate, the ultrahigh compressive strength, the high crack resistance, the impermeability and the freeze-thaw resistance of the ultrahigh-performance concrete and the high durability performance, and the dimensional accuracy and the quality of the prefabricated segment component can be ensured; the corrugated steel roof can replace the top steel bar of the lining, and the UHPC rib plate beam can replace the bottom steel bar and the abdomen stirrup, thus saving the construction link of binding the steel reinforcement framework in the inner cavity; the mechanized assembly in the holes can shorten the construction period and improve the labor conditions; the assembled ring can be used as a non-dismantling template for grouting the inner cavity, bear the self weight of grouting and cast-in-place concrete and save a large amount of supporting materials and labor. Meanwhile, the utility model has simple structure, reasonable design and convenient construction, can be widely applied to tunnel structures, improves the construction efficiency and prolongs the service life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention;
in the figure: 1-corrugated steel roof plate, 2-UHPC rib plate beam, 3-cast-in-place concrete, 4-wave lining unit, 5-tunnel, 6-tunnel excavation surface, 7-cement mortar, 11-wave, 12-waterproof material, 21-bottom plate, 22-rib plate, 23-steel bar framework, 24-grouting working hole, 25-anchor bolt, 41-side wall segment, 42-vault segment, 43-inverted arch, 44-anchor bolt, 51-prestressed anchor rod, 52-bolt and 53-waterproof sealing gasket.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1-2.
In a preferred embodiment of the present invention: the assembled tunnel lining structure combining the corrugated steel plate and the UHPC comprises a multi-section lining unit, wherein the lining unit comprises an inverted arch positioned at the bottom of a tunnel, side wall sections are arranged at the left end and the right end of the inverted arch, arch top sections are erected between the tops of the two side wall sections, the side wall sections and the arch top sections respectively comprise a corrugated steel top plate and UHPC rib plate beams, cement mortar is filled between the corrugated steel top plate and an excavation surface of the tunnel to form an initial support of the tunnel, and cast-in-place concrete is filled between the corrugated steel top plate and the UHPC rib plate beams to form a permanent support of the tunnel.
In this embodiment, for the structural strength who increases the wave form steel roof, the wave form steel roof comprises a plurality of wave form, and a side spraying towards the tunnel has waterproof material to guarantee water-proof effects, the longitudinal arc line of wave form steel roof is unanimous with the outline in tunnel.
In this embodiment, the UHPC rib plate beam includes a bottom plate, one or two rib plates are disposed on the bottom plate, a longitudinal arc of the UHPC rib plate beam is identical to an inner contour of the tunnel, when the number of the rib plates is 1, the rib plate and the bottom plate form an inverted T shape, and when the number of the rib plates is 2, the rib plate and the bottom plate form an inverted pi shape.
In this example, the corrugated steel roof and UHPC rib beam are pre-fabricated in the factory.
In this embodiment, a plurality of anchor bolts are embedded at the top end of the rib plate, and the corrugated steel top plate and the UHPC rib plate beam are fixedly connected through the anchor bolts.
In this embodiment, in order to ensure the connection strength between the rib plate and the bottom plate, a steel reinforcement framework is arranged between the bottom plate and the rib plate.
In this embodiment, the rib plate is provided with a grouting working hole, and when permanent support is required, the permanent support can be formed by pouring cast-in-place concrete into the interlayer between the UHPC rib plate beam and the corrugated steel roof plate.
In this embodiment, the inverted arch is a prefabricated or cast-in-place reinforced concrete structure.
In this embodiment, the lining units are sequentially arranged in a ring-by-ring manner along the length direction of the tunnel, two adjacent UHPC rib plate beams are connected through a prestressed anchor rod, two adjacent corrugated steel roof plates are connected through a flange and a bolt, the flange is generally arranged at the front end and the rear end of each corrugated steel roof plate, a through hole for the bolt to pass through is formed in the flange, and a waterproof sealing gasket is arranged at the connection position.
In this embodiment, through the stock concatenation between inverted arch, vault segment and two side wall segments, the concatenation department is provided with waterproof sealing pad. The end parts of the inverted arch, the arch top segment and the side wall segment are provided with embedding openings, the embedding openings are mutually embedded during splicing, and the anchoring rods are used for fixing.
In this embodiment, the joints between the inverted arch, the arch segment and the two side wall segments are arranged in a staggered manner, so that the joints of two adjacent lining units are staggered.
A construction method of an assembled tunnel lining structure suitable for a combination of a corrugated steel plate and UHPC comprises the following steps:
(1) according to the actual field condition and the technological requirements, after the full section of the tunnel is excavated, the inverted arch is cast in place or prefabricated and hoisted;
(2) prefabricating a corrugated steel top plate and a UHPC rib plate beam in a factory and conveying to a construction site;
(3) after the UHPC rib plate beam is maintained to reach the strength, connecting the corrugated steel top plate with the UHPC rib plate beam through the anchor bolts pre-embedded on the rib plates; conveying the vault segment and the two side wall segments formed after connection into a tunnel gallery for splicing;
(4) respectively installing the two side wall segments to the left end and the right end of the inverted arch;
(5) the vault sections are hung and assembled on beam supports of the two side wall sections to form an assembled tunnel lining which is connected with one another in a ring-to-ring mode along the length direction of the tunnel;
(6) splicing the splicing positions of the two side wall sections, the arch top section and the inverted arch by using anchor rods, and arranging waterproof sealing gaskets at the splicing positions;
(7) connecting bottom plates of two adjacent UHPC rib plate beams by using a prestressed anchor rod, connecting flanges of two adjacent corrugated steel top plates by using a high-strength bolt, and arranging a waterproof sealing pad at a splicing position;
(8) filling a gap between the corrugated steel top plate and the tunnel excavation surface with cement mortar to form a primary support of the tunnel;
(9) and an inner cavity between the common concrete cast-in-place corrugated steel top plate and the UHPC rib plate beam is adopted, so that a permanent supporting structure is formed, and construction and manufacturing are completed.
The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various types of fabricated tunnel lining structures combining corrugated steel plates and UHPC and methods of constructing the same are designed according to the teachings of the present invention without any inventive labor, and all equivalent changes, modifications, substitutions and alterations made in the claims of the present invention shall be covered by the present invention without departing from the principles and spirit of the present invention.
Claims (10)
1. The assembled tunnel lining structure combining the corrugated steel plate and the UHPC comprises a plurality of lining units, wherein each lining unit comprises an inverted arch positioned at the bottom of a tunnel, and the assembled tunnel lining structure is characterized in that side wall sections are arranged at the left end and the right end of each inverted arch, arch top sections are erected between the tops of the two side wall sections, each side wall section and each arch top section comprise a corrugated steel top plate and an UHPC rib plate beam, cement mortar is filled between each corrugated steel top plate and a tunnel excavation surface to form primary support of the tunnel, and cast-in-place concrete is filled between each corrugated steel top plate and the corresponding UHPC rib plate beam to form permanent support of the tunnel.
2. The fabricated tunnel lining structure of a combination of corrugated steel plate and UHPC as claimed in claim 1, wherein the corrugated steel top plate is composed of a plurality of corrugations, one side surface facing the tunnel is coated with waterproof material, and the longitudinal arc line of the corrugated steel top plate is consistent with the outer contour of the tunnel.
3. The assembled tunnel lining structure of a corrugated steel plate and UHPC combination according to claim 1, wherein the UHPC rib plate beam comprises a bottom plate, one or two rib plates are arranged on the bottom plate, the longitudinal arc line of the UHPC rib plate beam is consistent with the inner contour of the tunnel, when the number of the rib plates is 1, the rib plates and the bottom plate form an inverted T shape, and when the number of the rib plates is 2, the rib plates and the bottom plate form an inverted pi shape.
4. The fabricated tunnel lining structure with the combination of the corrugated steel plate and the UHPC as claimed in claim 3, wherein a plurality of anchor bolts are embedded in the rib plates, and the corrugated steel top plate and the UHPC rib plate beam are fixedly connected through the anchor bolts.
5. The fabricated tunnel lining structure of a corrugated steel plate and UHPC combined as recited in claim 3, wherein a steel reinforcement cage is disposed between the bottom plate and the rib plate.
6. The fabricated tunnel lining structure of a corrugated steel plate and UHPC combined as recited in claim 3, wherein said rib plate is provided with grouting work holes.
7. The fabricated tunnel lining structure of a corrugated steel plate combined with UHPC of claim 1, wherein the inverted arch is a prefabricated or cast-in-place reinforced concrete structure.
8. The fabricated tunnel lining structure of a corrugated steel plate and UHPC combination according to claim 1, characterized in that the inverted arch, the arch top segment and the two side wall segments are spliced by anchor rods, and waterproof gaskets are arranged at the spliced parts.
9. The assembled tunnel lining structure formed by combining the corrugated steel plates and the UHPC according to claim 8, wherein the lining units are sequentially arranged in a ring-by-ring mode along the length direction of the tunnel, two adjacent UHPC rib plate beams are connected through prestressed anchor rods, two adjacent corrugated steel top plates are connected through flanges and bolts, waterproof sealing gaskets are arranged at the connecting positions, and the splicing positions of two adjacent lining units are arranged in a staggered joint mode.
10. A construction method of a fabricated tunnel lining structure adapted to the corrugated steel plate and UHPC combined as set forth in any one of claims 1 to 9, comprising the steps of:
(1) according to the actual field condition and the technological requirements, after the full section of the tunnel is excavated, the inverted arch is cast in place or prefabricated and hoisted;
(2) prefabricating a corrugated steel top plate and a UHPC rib plate beam in a factory and conveying to a construction site;
(3) after the UHPC rib plate beam is maintained to reach the strength, connecting the corrugated steel top plate with the UHPC rib plate beam through the anchor bolts pre-embedded on the rib plates; conveying the vault segment and the two side wall segments formed after connection into a tunnel gallery for splicing;
(4) respectively installing the two side wall segments to the left end and the right end of the inverted arch;
(5) the vault sections are hung and assembled on beam supports of the two side wall sections to form an assembled tunnel lining which is connected with one another in a ring-to-ring mode along the length direction of the tunnel;
(6) splicing the splicing positions of the two side wall sections, the arch top section and the inverted arch by using anchor rods, and arranging waterproof sealing gaskets at the splicing positions;
(7) connecting bottom plates of two adjacent UHPC rib plate beams by using a prestressed anchor rod, connecting flanges of two adjacent corrugated steel top plates by using a high-strength bolt, and arranging a waterproof sealing pad at a splicing position;
(8) filling a gap between the corrugated steel top plate and the tunnel excavation surface with cement mortar to form a primary support of the tunnel;
(9) and an inner cavity between the common concrete cast-in-place corrugated steel top plate and the UHPC rib plate beam is adopted, so that a permanent supporting structure is formed, and construction and manufacturing are completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581964.XA CN113294171B (en) | 2021-05-27 | 2021-05-27 | Corrugated steel plate and UHPC combined assembled tunnel lining structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581964.XA CN113294171B (en) | 2021-05-27 | 2021-05-27 | Corrugated steel plate and UHPC combined assembled tunnel lining structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN113294171A CN113294171A (en) | 2021-08-24 |
| CN113294171B true CN113294171B (en) | 2022-04-08 |
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| CN115012984B (en) * | 2022-08-05 | 2022-11-22 | 湖南大学 | Phase change thermal insulation layer-UHPC combined shield segment capable of being assembled quickly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780949A (en) * | 2017-10-13 | 2018-03-09 | 北京工业大学 | A kind of steel FRP complex waves card tunnel support method |
| CN210564582U (en) * | 2019-09-30 | 2020-05-19 | 河北交通职业技术学院 | Cold region tunnel heat-insulating lining |
| CN111396079A (en) * | 2019-04-23 | 2020-07-10 | 中国建筑股份有限公司 | Superposed assembly type tunnel secondary lining structure and construction method thereof |
| CN111828038A (en) * | 2020-04-10 | 2020-10-27 | 同济大学 | Prefabricated lining for tunnel reinforcement and installation method thereof |
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2021
- 2021-05-27 CN CN202110581964.XA patent/CN113294171B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780949A (en) * | 2017-10-13 | 2018-03-09 | 北京工业大学 | A kind of steel FRP complex waves card tunnel support method |
| CN111396079A (en) * | 2019-04-23 | 2020-07-10 | 中国建筑股份有限公司 | Superposed assembly type tunnel secondary lining structure and construction method thereof |
| CN210564582U (en) * | 2019-09-30 | 2020-05-19 | 河北交通职业技术学院 | Cold region tunnel heat-insulating lining |
| CN111828038A (en) * | 2020-04-10 | 2020-10-27 | 同济大学 | Prefabricated lining for tunnel reinforcement and installation method thereof |
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