CN111636290A - Improved generation overflow bridge structure - Google Patents
Improved generation overflow bridge structure Download PDFInfo
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- CN111636290A CN111636290A CN202010548888.8A CN202010548888A CN111636290A CN 111636290 A CN111636290 A CN 111636290A CN 202010548888 A CN202010548888 A CN 202010548888A CN 111636290 A CN111636290 A CN 111636290A
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- concrete
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- foundation structure
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- 239000004567 concrete Substances 0.000 claims abstract description 62
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 27
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 27
- 241000018646 Pinus brutia Species 0.000 claims abstract description 27
- 239000004575 stone Substances 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000010426 asphalt Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000009991 scouring Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an improved type overflowing bridge structure which comprises a concrete foundation structure layer and concrete retaining walls on two sides of the concrete foundation structure layer, wherein soil and stone slag are filled on the concrete foundation structure layer, a cross-over pipe culvert is arranged on the connecting surface of the concrete foundation structure layer and the soil and stone slag, and the pipe culvert penetrates through the concrete retaining walls on the two sides; the method comprises the following steps that (1) pine piles are arranged on a concrete foundation structure layer, the tops of the pine piles are flush with the top of the concrete foundation structure layer, and the pine piles downwards penetrate through the concrete foundation structure layer and a graded broken stone cushion layer at the bottom of the concrete foundation structure layer and are driven into a river course foundation layer; and a hardened pavement structure is arranged on the top of the earth and stone slag. The flooding bridge has the advantages of good integrity and stability, strong anti-scouring capability, low cost and simple construction.
Description
Technical Field
The invention relates to an improved type overflowing bridge structure, and belongs to the technical field of highway bridges and culverts.
Background
In valley areas of mountain areas, gullies or rivers are frequently seen, the whole width of the river channel is not large, the river water amount is obvious seasonality, namely, the water amount in the dry period is small, the water flow speed is low, the water amount in the rainy season is large, and the water flow speed is high; in order to ensure continuous traffic on both sides of the river and reduce the construction cost, the overflow bridge is constructed for communication. The conventional method for the flooding bridge comprises the following steps: firstly, the finished pipe culvert is formed by filling soil and stone slag in parallel; secondly, finished pipe culverts are embedded side by side and filled with concrete to form the finished pipe culverts; thirdly, forming a cast-in-place reinforced concrete box culvert or a slab culvert; although the methods achieve basic use functions, the methods have some defects, namely, the method has low cost and quick construction, but has poor overall stability, is not resistant to scouring, and is easily damaged by flood in a rainstorm period; the manufacturing method II and the manufacturing method III are resistant to scouring, but the whole stability is greatly influenced by the bridge foundation, and the cost is high.
Disclosure of Invention
The invention aims to improve the existing overflowing bridge method and provides an overflowing bridge structure which is resistant to scouring, good in overall stability, low in cost and simple in construction.
The invention is realized by the following steps:
an improved type overflowing bridge structure comprises a concrete foundation structure layer and concrete retaining walls on two sides of the concrete foundation structure layer, wherein soil and stone residues are filled in the concrete foundation structure layer, a cross pipe culvert is arranged on a connecting surface of the concrete foundation structure layer and the soil and stone residues, and the pipe culvert penetrates through the concrete retaining walls on the two sides; the method comprises the following steps that (1) pine piles are arranged on a concrete foundation structure layer, the tops of the pine piles are flush with the top of the concrete foundation structure layer, and the pine piles downwards penetrate through the concrete foundation structure layer and a graded broken stone cushion layer at the bottom of the concrete foundation structure layer and are driven into a river course foundation layer; and a hardened pavement structure is arranged on the top of the earth and stone slag.
Further, the pine piles are arranged between the row pipe culverts in a matrix mode, the tip diameters of the pine piles are 12-20 cm, and the length of the pine piles is larger than or equal to 3.0 m.
Further, the lower portion 1/3 of the pipe culvert is buried in the concrete foundation layer, and the upper portion 2/3 is buried in the earth and rock ballast.
Furthermore, the hardened pavement structure corresponds to a traffic lane and is separated from the top structure of the concrete retaining wall by an asphalt-flax separation seam.
Furthermore, a protective railing is fixedly embedded on the concrete retaining wall.
Furthermore, settlement joints are arranged along the water flow direction on rigid structures including the concrete foundation structure layer and the concrete retaining wall, and the joints are filled with asphalt floc.
Compared with the prior art, firstly, the flood bridge has good integrity and stability, because the pine piles are driven into the riverbed foundation layer and are in cast-in-place rigid connection with the concrete foundation structure layer and the concrete retaining wall, the soil and stone residues are located in the concrete foundation structure layer and the concrete retaining wall, the bridge body has good integrity, and because the pine pile components are adopted, the bridge body has the advantages of improved adaptability to the foundation and good stability; the rigid structure of the bridge body is provided with the settlement transverse seam, so that the bridge has the advantages of enhancing the integral deformation resistance of the structure and the like.
Secondly, the scheme of the invention has strong anti-scouring capability, because the upstream and downstream upstream water-facing surfaces and the road surface of the bridge body adopt a concrete retaining wall structure and a hardened road surface structure, the invention can bear the steep rising and steep falling scouring of river water in a rainstorm period without damage, and the later repair and maintenance investment is reduced.
Thirdly, the invention has low cost and simple construction, because the bridge body of the flooding bridge adopts a 'gold-coated silver' structure: the construction method has the advantages that the concrete foundation layer, the concrete retaining wall and the earth and stone slag achieve the anti-scouring effect, the cost is reduced, the pine pile can be made of local materials, and due to the adoption of the structure, large-scale equipment is not needed in the construction process, and the construction method has the advantages of low investment of manpower, machinery and the like, simplicity and convenience in construction and the like.
Drawings
FIG. 1 is a schematic plan view of the structure;
FIG. 2 is a schematic longitudinal section view of the structure (section A-A);
FIG. 3 is a schematic diagram of a structural longitudinal section II (section B-B);
FIG. 4 is a cross-sectional view of the structure I (section C-C);
FIG. 5 is a cross-sectional view of the structure (section D-D).
Description of reference numerals: 1-pine pile, 2-graded broken stone cushion, 3-concrete retaining wall, 31-concrete foundation structure layer, 4-pipe culvert, 5-soil and stone slag, 6-hardened pavement structure, 7-asphalt and linen-wadding separation seam, 8-protective railing, 9-settlement seam and 10-riverbed slope.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The novel structure is used in the construction of the water-overflowing bridge of part of projects, the effect is good, and the implementation case and the process are as follows.
In the embodiment, the river bay reservoir flood bridge is taken as an example, the length of the flood bridge is 18.5m, the width of a bridge deck is 5.5m, and the water passing pipe culvert consists of reinforced concrete prefabricated pipes with 7 holes and the diameter of 1.5m, and the specific implementation mode is as follows:
1. leveling the slope 10 and the base course of the riverbed, excavating, filling and tamping the foundation of the riverbed, and if a soft layer is involved, excavating, removing and replacing with broken stones.
2. Paving a graded broken stone cushion layer 2 on the leveled and compacted riverbed base layer, wherein the paving thickness is about 0.3-0.5 m, and compacting; according to the structural plan of the building, a pine pile 1 and a pipe culvert 4-axis net or positioning points are distributed according to the structural plan of the building 1, the pine pile 1 is driven into a river bed base layer, the tip diameter of the pine pile 1 is 12-20 cm, the length of the pine pile is more than or equal to 3.0m, the exposed height of the pine pile after the pine pile is driven is up to 1/3 of the lower part of the pipe culvert 4, the height of the pine pile is shown in figure 3, the exposed height of the pine pile is 1.0m in the embodiment, and the pine.
3. And (3) pouring concrete of the foundation structure layer by using a vertical mould, wherein the concrete adopts C25 secondary composition, a 2 cm-wide settlement joint 9 is arranged at the middle position of the flooding bridge shown in the figure 3, asphalt is filled with flax, and when the concrete is poured to the bottom elevation of the pipe culvert 4, the concrete is continuously poured to be flush with the top elevation of the pine pile 1 shown in the figure 3 after the pipe culvert 4 is hoisted and laid by using an 8t truck crane for fixing.
4. And (3) vertically casting the upstream and downstream concrete retaining walls 3 to the designed elevation of the bridge deck, arranging settlement joints 9 with the width of 2cm at the middle position shown in figure 2, filling asphalt catkins, and showing the concrete casting effect in figures 4 and 5.
5. After the concrete reaches the design age, 1m is utilized3～2m3A back-hoe excavator excavates earth and stone slag 5 to the inside of the bridge body shown in the figure 4, the excavator is assisted with manual layered paving, the paving thickness is 30-50 cm, a hand-held vibrating tamper is assisted with a tamper plate for layered grinding compaction, the compaction degree is not less than 90 percent, and the bridge body earth and stone slag is paved and rolled in a layered mode to the hardened road shown in the figure 4The floor elevation of the face structure 6.
6. And (3) erecting a mould on the finished surface of the stone ballast 5, pouring a concrete hardened pavement structure 6, and arranging a 2 cm-wide asphalt-flax-wadding separation seam 7 between the two sides of the road and the concrete retaining wall 3.
7. And (4) backfilling cement paste after the top of the two side concrete retaining walls 3 is provided with holes for inserting the protective railings 8, and completing the connection of the protective railings 8 and the connecting rods and bolts.
Of course, the above is only a specific application example of the present invention, and other embodiments of the present invention are also within the scope of the present invention.
Claims (6)
1. An improved generation overflow bridge structure which characterized in that: the concrete retaining wall comprises a concrete foundation structure layer (31) and concrete retaining walls (3) on two sides of the concrete foundation structure layer, wherein the concrete foundation structure layer (31) is filled with concrete and stone ballast (5), a cross pipe culvert (4) is arranged on the connecting surface of the concrete foundation structure layer (31) and the concrete and stone ballast (5), and the pipe culvert (4) penetrates through the concrete retaining walls (3) on two sides; a pine pile (1) is arranged on the concrete foundation structure layer (31), the top of the pine pile (1) is flush with the top of the concrete foundation structure layer (31), and the pine pile (1) downwards passes through the concrete foundation structure layer (31) and the graded broken stone cushion layer (2) at the bottom and is driven into the river course foundation layer; and a hardened pavement structure (6) is arranged on the top of the earth and stone slag (5).
2. The improved flooded bridge structure of claim 1, wherein: the pine pile (1) is arranged between the pipe culvert (4) in a matrix mode, the tip diameter of the pine pile (1) is 12-20 cm, and the length is larger than or equal to 3.0 m.
3. The improved flooded bridge structure of claim 1, wherein: the lower part 1/3 of the pipe culvert (4) is buried in the concrete foundation structure layer (31), and the upper part 2/3 is buried in the earth-rock ballast (5).
4. The improved flooded bridge structure of claim 1, wherein: the hardened pavement structure (6) corresponds to a traffic lane and is separated from the top structure of the concrete retaining wall (3) by an asphalt bast fiber separation seam (7).
5. The improved flooded bridge structure of claim 1, wherein: and a protective railing (8) is fixedly embedded on the concrete retaining wall (3).
6. The improved flooded bridge structure of claim 1, wherein: setting settlement joints (9) for rigid structures including the concrete foundation structure layer (31) and the concrete retaining wall (3) along the water flow direction, and filling the joints with asphalt flocs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548888.8A CN111636290A (en) | 2020-06-16 | 2020-06-16 | Improved generation overflow bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548888.8A CN111636290A (en) | 2020-06-16 | 2020-06-16 | Improved generation overflow bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN111636290A true CN111636290A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010548888.8A Withdrawn CN111636290A (en) | 2020-06-16 | 2020-06-16 | Improved generation overflow bridge structure |
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| Country | Link |
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| CN (1) | CN111636290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813844A (en) * | 2021-02-08 | 2021-05-18 | 中交路桥建设有限公司 | Access-protecting passage meeting rapid flood discharge requirement in river channel and construction method |
-
2020
- 2020-06-16 CN CN202010548888.8A patent/CN111636290A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813844A (en) * | 2021-02-08 | 2021-05-18 | 中交路桥建设有限公司 | Access-protecting passage meeting rapid flood discharge requirement in river channel and construction method |
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Application publication date: 20200908 |
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| WW01 | Invention patent application withdrawn after publication |