CN214530268U - Strenghthened type assembled corrugated steel shed tunnel structure - Google Patents
Strenghthened type assembled corrugated steel shed tunnel structure Download PDFInfo
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- CN214530268U CN214530268U CN202023109473.5U CN202023109473U CN214530268U CN 214530268 U CN214530268 U CN 214530268U CN 202023109473 U CN202023109473 U CN 202023109473U CN 214530268 U CN214530268 U CN 214530268U
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Abstract
The utility model discloses a strenghthened type assembled corrugated steel shed hole structure, including the bottom sprag structure who buries underground in the ground, bottom sprag structure is formed by reinforced concrete pouring, set up interior wall and outer wall respectively in bottom sprag structure's upper end both sides, erect corrugated steel crown arch support body between interior wall and outer wall, corrugated steel crown arch support body includes corrugated steel ceiling and reinforced concrete reinforcing crown arch, reinforced concrete reinforcing crown arch is equipped with the side reinforcement body at the outer wall side integrated into one piece, the side reinforcement body includes base portion and flange portion, base portion and reinforced concrete reinforcing crown arch are integrative, the flange portion extends upwards along the base portion, the flange portion inclines to near mountain one side and the contained angle scope of plumb line is 5-15 degrees; the corrugated steel roof arch support body of the utility model adopts the prefabricated splicing technology, the assembly and splicing are simple and rapid, and the economic benefit is obvious; the utility model discloses powerful the atress performance that has improved the shed tunnel structure of ripple steel crown arch support body has promoted the anti rockfall impact's of shed tunnel structure ability.
Description
Technical Field
The utility model belongs to the technical field of railway, highway tunnel engineering, especially, relate to a strenghthened type assembled corrugated steel shed tunnel structure.
Background
The shed tunnel is a tunnel which belongs to the open cut tunnel category, wherein a simple ceiling frame is constructed after the cut is dug in the open cut, and a tunnel body is formed by backfilling.
When a highway or a railway trunk line passes through a high mountain canyon, the roadbed of the highway or the railway trunk line is usually formed by slope cutting and excavation of a relatively stable side slope body and belongs to a slope high-position roadbed. The bridge road engineering is positioned in a special geological and geomorphic environment, particularly a high-speed slope rockfall disaster formed by middle/high collapse often damages vehicles and blocks traffic, and the economic and social development is seriously influenced. Especially on the traffic trunk line in the western mountainous area, the collapse and rock rolling disasters are serious, and the damage is particularly serious.
Referring to fig. 1, in the prior art, a common shed tunnel structure adopts a reinforced concrete rectangular frame structure, the rectangular frame is completed by a traditional slab concrete cast-in-place construction process, and the rectangular structure has poor deformation adaptability, poor bearing capacity and poor rock fall impact resistance due to the stress property. Meanwhile, the reinforced concrete rectangular frame structure is complex in construction process, limited in construction site, serious in damage to the environment, high in construction cost and long in construction period.
SUMMERY OF THE UTILITY MODEL
The application provides the technical problem that solves provides a strenghthened type assembled corrugated steel shed tunnel structure, solves among the prior art board-like concrete shed tunnel structure adaptability deformability and bearing capacity poor, the work progress is complicated, the period is long, the problem that the cost is high.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a reinforced assembled corrugated steel shed tunnel structure comprises a bottom supporting structure buried in a foundation, a composite pavement is paved on the upper end surface of the foundation, the bottom supporting structure is formed by pouring reinforced concrete, the cross section of the bottom supporting structure is of an inverted concave structure or an H-shaped structure, an inner wall and an outer wall are respectively arranged on two sides of the upper end of the bottom supporting structure, a corrugated steel crown support is erected between the inner wall and the outer wall and comprises a corrugated steel ceiling and a reinforced concrete crown arch, the corrugated steel ceiling is formed by connecting a plurality of corrugated steel plate wave crests and wave troughs which are overlapped into arch pieces, the corrugated steel ceiling is fixedly connected with the reinforced concrete crown arch on the upper portion of the corrugated steel ceiling through anchors, the reinforced concrete crown arch is integrally formed on the outer wall side and provided with side reinforcing bodies, each side reinforcing body comprises a foundation portion and a flange portion, the foundation portion and the reinforced concrete crown are integrated, the edge blocking part extends upwards along the base part, and the included angle between the edge blocking part and the plumb line is 5-15 degrees when the edge blocking part inclines towards the mountain-approaching side; the concrete mortar is characterized in that a cement mortar reinforcing layer is filled between the inner wall and the mountain body, grout rubbles are built outside the outer wall and the side reinforcing body, grout rubbles are built above the cement mortar reinforcing layer and between the corrugated steel top arch supporting body and the mountain body, and a thick gravel cushion layer, a thick clay layer and a vegetation layer are sequentially arranged above the grout rubbles.
Furthermore, the lower end of the corrugated steel ceiling is fixed with the inner wall and the outer wall through a plurality of groups of foundation bolts.
Furthermore, deformation joints of 2-5cm are reserved in the corrugated steel roof at intervals of 10m along the direction of the shed tunnel.
Further, a waterproof layer is arranged above the corrugated steel roof arch supporting body and made of waterproof boards and geotextile.
Furthermore, the interval of the wall thickness of the corrugated steel plate is 2.5 mm-12 mm, the wave distance wave height selection comprises 380mm 140mm, 150mm 50mm, 200mm 55mm, 230mm 64mm, 300mm 110mm or 400mm 150mm, and the steel plate material comprises Q345, Q235 or Q355.
Furthermore, a foam sealing gasket or a rubber water stop belt is arranged in superposed gaps among the corrugated steel plates.
Furthermore, corrugated steel strain gauges are arranged on the far mountain side, the top arch and the near mountain side of the lower end face of the corrugated steel top arch support body.
The utility model has the advantages that:
1. the corrugated steel roof arch support body of the utility model adopts the prefabricated splicing technology, the assembly and splicing are simple and rapid, the construction risk is low, the structure is durable and safe, energy-saving and environment-friendly, the safety risk of constructors is low, the comprehensive cost is greatly reduced, and the economic benefit is obvious; the utility model discloses corrugated steel roof arch support body combines the bearing structure and the packing setting of its bottom, and powerful the atress performance that has improved the shed hole structure has promoted the anti rockfall impact's of shed hole structure ability, improves driving comfort and security, improves the operation safety and the quality of high slope highway section.
2. The utility model discloses a reinforced concrete consolidates the crown arch and adds the solid at outside wall side integrated into one piece reinforced concrete structure's side, and the side adds the solid and includes base portion and flange portion, and flange portion inclines 5-15 degrees to the massif, has good anti landslide and shock resistance, effectively reduces the shed hole structure stress concentration phenomenon that the catastrophe body arouses, more is applicable to the mountain area, and the regional construction is frequently taken place to natural disasters.
Drawings
FIG. 1 is a shed tunnel structure of a reinforced concrete rectangular frame in the prior art;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a simplified diagram of the installation structure of the corrugated steel crown arch support of the present invention;
FIG. 4 is a schematic view of a corrugated steel plate according to the present invention;
in the figure, 1-bottom supporting structure, 2-inner wall, 3-outer wall, 4-corrugated steel crown arch support, 5-corrugated steel ceiling, 6-reinforced concrete reinforced crown arch, 7-side reinforcing body, 8-cement mortar reinforcing layer, 9-grouted rubble and 10-corrugated steel plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and examples, and it is obvious that the described examples are only some of the examples of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b):
referring to fig. 2 and 3, the reinforced assembled corrugated steel shed tunnel structure includes a bottom support structure 1 buried in a foundation, a composite pavement is laid on an upper end surface of the foundation, the bottom support structure 1 is formed by pouring reinforced concrete, and has a cross section of an inverted "concave" structure, in other embodiments, the bottom support structure 1 may also be an "H" structure or other structures; an inner wall 2 and an outer wall 3 are respectively arranged on two sides of the upper end of the bottom supporting structure 1, a corrugated steel crown arch support body 4 is erected between the inner wall 2 and the outer wall 3, and the lower end of the corrugated steel crown arch support body 4 is fixed with angle steel embedded in the inner wall 2 and the outer wall 3 through a plurality of groups of foundation bolts;
the corrugated steel roof arch support comprises a corrugated steel roof 5 and a reinforced concrete reinforced roof arch 6, wherein the corrugated steel roof 5 is connected into an arch structure after being overlapped by a plurality of corrugated steel plates 10 wave crests and wave troughs, the corrugated steel roof 5 is erected behind an inner wall 2 and an outer wall 3, the reinforced concrete reinforced roof arch 6 fixedly connected to the upper part of the corrugated steel roof arch is anchored, the main body of the reinforced concrete reinforced roof arch 6 is of an arch structure, the corrugated steel roof arch support 4 has excellent mechanical property, the thickness of the reinforced concrete reinforced roof arch 6 is 50cm and is far smaller than 80cm of a traditional rectangular frame, the reinforced concrete reinforced roof arch 6 is integrally formed on one side of the outer wall 3 and is provided with a side reinforcing body 7, the side reinforcing body 7 comprises a base part and a flange part, the lower part of the base part is connected with the outer wall 3 and is integrated with the reinforced concrete roof arch 6, the flange part extends upwards along the base part to form a long wall structure, and the flange part is as high as the reinforced concrete roof arch 6, the edge blocking part inclines towards one side close to the mountain, and specifically, the included angle between the edge blocking part and the plumb line is 10 degrees; the concrete mortar reinforced concrete wall is characterized in that a cement mortar reinforced layer 8 is filled between the inner wall 2 and the mountain body, a grout rubble 9 is built outside the outer wall 3 and the side reinforced concrete body 7, the grout rubble 9 is built above the cement mortar reinforced layer 8 and between the corrugated steel crown arch supporting body 4 and the mountain body, and a thick gravel cushion layer, a thick clay layer and a vegetation layer are sequentially arranged above the grout rubble 9.
In order to avoid damage to the structure caused by deformation of the shed tunnel under the action of external factors, deformation joints of 2-5cm are reserved in the corrugated steel ceiling 5 at intervals of 10m along the direction of the shed tunnel.
The waterproof layer is arranged above the corrugated steel top arch support body 4 and is made of waterproof boards and geotextile, and foam sealing gaskets or rubber water stop belts are arranged in superposed gaps among the plurality of corrugated steel plates 6 to prevent water leakage at the joints of the plurality of corrugated steel plates 5.
Referring to fig. 4, the interval of the wall thickness of the corrugated steel plate is 2.5 mm-12 mm, the wave distance wave height selection comprises 380mm 140mm, 150mm 50mm, 200mm 55mm, 230mm 64mm, 300mm 110mm or 400mm 150mm, and the steel plate material comprises Q345, Q235 or Q355; in this embodiment, the preferred wave pitch wall thickness is 380mm 140mm 5 mm.
In order to monitor the stress and deformation of the corrugated steel arch support 4 in real time, corrugated steel strain gauges can be arranged on the lower end face of the corrugated steel arch support 4 at multiple points on the far mountain side, the top arch side and the near mountain side and are connected with a central monitoring room in a wired or wireless mode.
It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. Any partial modification or replacement within the technical scope of the present invention disclosed by the present invention should be covered by the present invention.
Claims (7)
1. A reinforced assembled corrugated steel shed tunnel structure comprises a bottom supporting structure (1) buried in a foundation, and a composite pavement is laid on the upper end surface of the foundation, and is characterized in that the bottom supporting structure (1) is formed by pouring reinforced concrete, the cross section of the bottom supporting structure is of an inverted concave structure or an H structure, an inner wall (2) and an outer wall (3) are respectively arranged on two sides of the upper end of the bottom supporting structure (1), a corrugated steel crown support body (4) is erected between the inner wall (2) and the outer wall (3), the corrugated steel crown support body comprises a corrugated steel ceiling (5) and a reinforced concrete reinforced crown (6), the corrugated steel ceiling (5) is formed by connecting a plurality of corrugated steel plates (10) after wave crests and wave troughs are overlapped and then connected into arch sheets, the corrugated steel ceiling (5) is fixedly connected with the reinforced concrete crown (6) on the upper portion of the corrugated steel ceiling through anchoring, the reinforced concrete reinforcing top arch (6) is integrally provided with a side reinforcing body (7) at the side of the outer wall (3), the side reinforcing body (7) comprises a base part and a flange part, the base part and the reinforced concrete reinforcing top arch are integrated, the flange part extends upwards along the base part, and the included angle range between the flange part, which inclines towards the side close to the mountain, and the plumb line is 5-15 degrees; fill cement mortar back up coat (8) between interior wall (2) and massif, establish grout rubble (9) at the outside building of outer wall (3), side back up body (7), build between cement mortar back up coat (8) top, ripple steel crown arch support body (4) and massif and establish grout rubble (9), set gradually thick gravel bed course, thick muck layer and vegetation layer in the top of building grout rubble (9).
2. The reinforced fabricated corrugated steel shed tunnel structure according to claim 1, wherein the lower end of the corrugated steel roof (5) is fixed to the inner wall (2) and the outer wall (3) by a plurality of sets of anchor bolts.
3. A reinforced fabricated corrugated steel shed tunnel structure according to claim 1 or 2, characterized in that deformation joints of 2-5cm are reserved for the corrugated steel roof (5) at every 10m intervals along the shed tunnel direction.
4. The reinforced fabricated corrugated steel shed tunnel structure according to claim 3, characterized in that a waterproof layer is further provided above the corrugated steel crown arch support body (4), and the waterproof layer is made of waterproof boards and geotextiles.
5. The reinforced fabricated corrugated steel shed tunnel structure according to claim 4, wherein the corrugated steel sheets (10) have a wall thickness interval of 2.5mm to 12mm, the wave pitch pattern comprises 380mm 140mm, 150mm 50mm, 200mm 55mm, 230mm 64mm, 300mm 110mm or 400mm 150mm, and the steel sheet material comprises Q345, Q235 or Q355.
6. The reinforced fabricated corrugated steel shed tunnel structure of claim 5, wherein: and foam sealing gaskets or rubber water stop belts are arranged in superposed gaps among the corrugated steel plates (10).
7. The reinforced fabricated corrugated steel shed tunnel structure of claim 6, wherein: corrugated steel strain gauges are arranged on the far mountain side, the top arch and the near mountain side of the lower end face of the corrugated steel top arch support body (4).
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| CN202023109473.5U CN214530268U (en) | 2020-12-22 | 2020-12-22 | Strenghthened type assembled corrugated steel shed tunnel structure |
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| CN202023109473.5U CN214530268U (en) | 2020-12-22 | 2020-12-22 | Strenghthened type assembled corrugated steel shed tunnel structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523113A (en) * | 2020-12-22 | 2021-03-19 | 西安世纪金属结构有限公司 | Reinforced assembled corrugated steel shed tunnel structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523113A (en) * | 2020-12-22 | 2021-03-19 | 西安世纪金属结构有限公司 | Reinforced assembled corrugated steel shed tunnel structure |
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