CN109268040B - Special-shaped arch frame and supporting structure for highway tunnel - Google Patents
Special-shaped arch frame and supporting structure for highway tunnel Download PDFInfo
- Publication number
- CN109268040B CN109268040B CN201811459243.6A CN201811459243A CN109268040B CN 109268040 B CN109268040 B CN 109268040B CN 201811459243 A CN201811459243 A CN 201811459243A CN 109268040 B CN109268040 B CN 109268040B
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- Prior art keywords
- arch
- tunnel
- wave
- shaped
- arch frame
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- 238000010276 construction Methods 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- E21D11/14—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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a highway tunnel abnormal-shaped arch frame, which is of an annular closed structure and comprises an upper arch frame and a lower arch frame; the lower arch frame is of a U-shaped structure with an upward opening side; the upper arch is used for supporting the top of the tunnel, the upper arch is a continuous wave-shaped curve, the extension direction of the wave-shaped curve is the width direction of the tunnel, the wave-shaped curve is composed of a plurality of single wave curves with the same structure, the vertical lines from the wave crest to the wave trough are parallel to the extension direction of the tunnel, and the two ends of the upper arch are respectively connected with the two ends of the lower arch. The arch frame increases the longitudinal connection between the arch frames of the composite lining primary support of the tunnel, longitudinally bends the arch frames, expands the circumferential support range of the arch frames, increases the local support rigidity of the arch frames and the stability of the integral combined support, and can reduce the construction risk caused by larger longitudinal stress difference of the tunnel.
Description
Technical Field
The invention relates to the technical field of highway tunnel construction, in particular to a highway tunnel abnormal-shaped arch frame.
Background
At present, a single-truss annular ring is adopted for the tunnel composite lining primary support middle arch frame, and steel bars are used for connecting longitudinally to strengthen surrounding rocks so as to resist the large deformation of the surrounding rocks. However, at the longitudinal connection of the arches, the reinforcing steel bars only play a role of longitudinal connection, and the arch is in the absence of support among the longitudinal directions, so that larger settlement and even 'door closing collapse' are easy to occur at the positions.
Aiming at the prior art, a novel arch frame is necessary to be designed for solving the problem that the prior arch frame cannot play a supporting role in the longitudinal direction.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a highway tunnel abnormal arch frame, wherein the top of the arch frame adopts a net structure, so that the longitudinal connection rigidity of the arch frame is increased, the circumferential support range of the arch frame is expanded, and the overall support stability is enhanced.
The invention is realized by the following technical scheme:
The special-shaped arch frame of the highway tunnel is of a circular closed structure and comprises an upper arch frame and a lower arch frame;
the lower arch frame is of a U-shaped structure with an upward opening side;
The upper arch is used for supporting the top of the tunnel, the upper arch is a continuous wave-shaped curve, the extension direction of the wave-shaped curve is the width direction of the tunnel, the wave-shaped curve is composed of a plurality of single wave curves with the same structure, the vertical lines from the wave crest to the wave trough are parallel to the extension direction of the tunnel, and the two ends of the upper arch are respectively connected with the two ends of the lower arch.
Optionally, the upper arch frame is in a circular arc structure.
Optionally, two ends of the upper arch are located at the center of the wave height.
Optionally, the wave height of the waveform curve is 500mm-1500mm, and the distance between two adjacent wave crests is 800mm-1200mm.
Optionally, a connecting hole is provided at each crest or trough of the upper arch for connecting with an adjacent arch.
Optionally, the axis of the connecting hole is parallel to the extending direction of the tunnel.
Optionally, the cross section of the arch frame is I-shaped, round or polygonal.
Optionally, the i-shaped waist is vertically arranged.
The application also provides a protection structure of the highway tunnel, which comprises the arches, wherein a plurality of arches are arranged at equal intervals along the extending direction of the tunnel, two adjacent arches are arranged in a radial mirror image way along the tunnel, and the wave crests of the adjacent arches are connected or the wave troughs of the adjacent arches are connected, so that the upper part of the support structure forms a net structure.
Compared with the prior art, the invention has the following beneficial technical effects:
The supporting structure of the highway tunnel provided by the application enables the arches to be sealed in the circumferential direction, increases the longitudinal connection between the arch frames of the composite lining primary support of the tunnel, longitudinally bends the arches, expands the circumferential supporting range of the arches, increases the local supporting rigidity of the arches and the stability of the integral combined supporting, and can reduce the construction risk caused by larger longitudinal stress difference of the tunnel.
When the tunnel supporting structure is installed, the supporting system of the tunnel is completed by forward and reverse assembling of the arches, the arches are prefabricated and formed in batches in a factory, and are installed on site, so that the construction efficiency of the supporting system is improved, and the construction cost is reduced. And meanwhile, the bolts are used for longitudinal connection, so that a welding process is omitted. And secondly, after the arches are connected, the top of the supporting structure forms a net structure, so that the overall stability of the combined use of the arches is improved.
Drawings
FIG. 1 is a front view of an arch of the present invention;
FIG. 2 is a side view of an arch of the present invention;
FIG. 3 is a top view of the arch of the present invention;
FIG. 4 is an isometric view of an arch of the present invention;
Fig. 5 is a schematic view of the installation of the arch according to the invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.
As shown in fig. 1-4, a highway tunnel opposite arch is formed by an annular closed structure consisting of an upper arch and a lower arch.
The lower arch frame is of a U-shaped structure with an upward opening side, and the upper arch frame is arranged on the upper part of the lower arch frame.
The shape of the upper arch frame is matched with the top of the tunnel, the upper arch frame is in a circular arc structure, the upper arch frame is formed by a continuous wave-shaped curve, the wave-shaped curve is formed by a plurality of single wave curves with the same structure, the vertical line from the wave crest to the wave trough is parallel to the extending direction of the tunnel, the two ends of the upper arch frame are positioned at the center of the wave height, and the two ends of the upper arch frame are respectively connected with the two top ends of the lower arch frame.
The wave height of the wave curve is 500mm-1500mm, and the distance between two adjacent wave crests is 800-1200.
And connecting holes are formed in the wave crests and the wave troughs and are used for being connected with adjacent arches, and the axes of the connecting holes are parallel to the extending direction of the tunnel. The adjacent two arches are arranged along the radial mirror image of the tunnel, and are connected by bolts or welded, preferably bolted.
The cross sections of the upper arch frame and the lower arch frame are I-shaped, and the I-shaped supporting parts are vertically arranged.
The upper arch frame and the lower arch frame are formed by bending I-steel, and the top surface of the upper arch frame supports the top surface of the tunnel; the bottom surface of the lower arch is supported on the ground of the tunnel.
The cross sections of the upper and lower arches may also be circular, directional, rectangular or polygonal.
As shown in FIG. 5, a supporting structure of a highway tunnel comprises a plurality of the above-mentioned circumferentially closed arches, wherein the arches are arranged at equal intervals along the extending direction of the tunnel, two adjacent arches are arranged along the radial mirror image of the tunnel, and the peaks of the two adjacent arches are connected through bolts, or the troughs of the two adjacent arches are connected through bolts, so that the upper part of the supporting structure forms a net structure.
The supporting structure of the highway tunnel provided by the application enables the arches to be sealed in the circumferential direction, increases the longitudinal connection between the arch frames of the composite lining primary support of the tunnel, longitudinally bends the arches, expands the circumferential supporting range of the arches, increases the local supporting rigidity of the arches and the stability of the integral combined supporting, and can reduce the construction risk caused by larger longitudinal stress difference of the tunnel.
When the tunnel supporting structure is installed, the plurality of arches are used, the supporting system of the tunnel is completed by forward and reverse assembly, the arches are prefabricated and formed in batches in a factory, and are installed on site, so that the construction efficiency of the supporting system is improved, and the construction cost is reduced. And meanwhile, the bolts are used for longitudinal connection, so that a welding process is omitted. And secondly, after the arches are connected, the top of the supporting structure forms a net structure, so that the overall stability of the combined use of the arches is improved.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (7)
1. The special-shaped arch frame of the highway tunnel is characterized in that the arch frame is of a ring-shaped closed structure and comprises an upper arch frame and a lower arch frame;
the lower arch frame is of a U-shaped structure with an upward opening side;
The upper arch is used for supporting the top of the tunnel, the upper arch is a continuous wave-shaped curve, the extension direction of the wave-shaped curve is the width direction of the tunnel, the wave-shaped curve is composed of a plurality of single wave curves with the same structure, the vertical line from the wave crest to the wave trough is parallel to the extension direction of the tunnel, and the two ends of the upper arch are respectively connected with the two ends of the lower arch;
the upper arch frame is of a circular arc structure, and two ends of the upper arch frame are positioned at the center of the wave height.
2. A highway tunnel profiled arch according to claim 1, wherein the wave height of the wave form curve is 500mm-1500mm and the spacing between adjacent peaks is 800mm-1200mm.
3. A highway tunnel profiled arch according to claim 1, wherein each peak or trough of the upper arch is provided with a connecting hole for connection with an adjacent arch.
4. A highway tunnel profile arch according to claim 3, wherein the axis of the connection holes is parallel to the direction of elongation of the tunnel.
5. A highway tunnel profiled arch according to claim 1, wherein the cross section of the arch is i-shaped, circular or polygonal.
6. A highway tunnel profile arch according to claim 5, wherein the i-shaped waist is arranged vertically.
7. A supporting structure of a highway tunnel, characterized by comprising the arches according to any one of claims 1 to 6, wherein a plurality of arches are arranged at equal intervals along the extending direction of the tunnel, two adjacent arches are arranged along the radial mirror image of the tunnel, and the peaks of two adjacent arches are connected, or the troughs of two adjacent arches are connected, so that the upper part of the supporting structure forms a net structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459243.6A CN109268040B (en) | 2018-11-30 | 2018-11-30 | Special-shaped arch frame and supporting structure for highway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459243.6A CN109268040B (en) | 2018-11-30 | 2018-11-30 | Special-shaped arch frame and supporting structure for highway tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109268040A CN109268040A (en) | 2019-01-25 |
| CN109268040B true CN109268040B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811459243.6A Active CN109268040B (en) | 2018-11-30 | 2018-11-30 | Special-shaped arch frame and supporting structure for highway tunnel |
Country Status (1)
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Citations (18)
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|---|---|---|---|---|
| GB808500A (en) * | 1954-09-09 | 1959-02-04 | Bergbaustahl Gmbh & Co | Anchor supports for roofs and walls of mine galleries and the like |
| DE2637738A1 (en) * | 1976-08-21 | 1978-02-23 | Wuppermann Gmbh Theodor | Tunnel lining with arches and corrugated sheets - has corrugated cold rolled steel sheets secured to return flanges of U=section arches |
| FR2497871A1 (en) * | 1981-01-14 | 1982-07-16 | Salzgitter Maschinen Ag | TRIM TRIM FOR COMPOSITE SUPPORT BASED ON CONCRETE SPRAYED FOR WELL DRAINING OR DIGGING WELLS OR TUNNELS |
| AU1471602A (en) * | 2001-02-19 | 2002-08-22 | Neumann Steel Pty Limited | A mine support |
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| CN206175841U (en) * | 2016-11-21 | 2017-05-17 | 康命源（安徽）塑料科技发展股份有限公司 | Support reinforcing hollow wall winding pipe of plastic structure |
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- 2018-11-30 CN CN201811459243.6A patent/CN109268040B/en active Active
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| FR2497871A1 (en) * | 1981-01-14 | 1982-07-16 | Salzgitter Maschinen Ag | TRIM TRIM FOR COMPOSITE SUPPORT BASED ON CONCRETE SPRAYED FOR WELL DRAINING OR DIGGING WELLS OR TUNNELS |
| AU1471602A (en) * | 2001-02-19 | 2002-08-22 | Neumann Steel Pty Limited | A mine support |
| CN200948183Y (en) * | 2006-05-11 | 2007-09-19 | 辽宁生物医学材料研发中心有限公司 | Arch streamline net cylinder type lumen frame for human being |
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| Publication number | Publication date |
|---|---|
| CN109268040A (en) | 2019-01-25 |
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