CN214883073U - Box culvert for widening roads - Google Patents
Box culvert for widening roads Download PDFInfo
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- CN214883073U CN214883073U CN202023258227.6U CN202023258227U CN214883073U CN 214883073 U CN214883073 U CN 214883073U CN 202023258227 U CN202023258227 U CN 202023258227U CN 214883073 U CN214883073 U CN 214883073U
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- box culvert
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Abstract
The utility model discloses a box culvert for widening roads, which comprises a top plate, a bottom plate, inclined plates, vertical plates, a middle partition plate and antiskid plates; the top plate is opposite to the bottom plate and is rectangular; the inclined plate is used for connecting the top plate and the bottom plate and is rectangular; the vertical plate is used for sealing a three-dimensional structure formed by enclosing a top plate, a bottom plate and an inclined plate to form a closed quadrangular prism which is trapezoidal, and the middle partition plate is vertically arranged between the top plate and the bottom plate at equal intervals; the antiskid plate is fixedly connected with the lower surface of the bottom plate, is parallel to the vertical plate and is vertical to the middle partition plate. The utility model provides a box culvert for widening road has reduced newly-built road bed earth-filling load of widening the road when the construction, has reduced the additional load of tunnel structure and the disturbance of tunnel country rock, avoids the tunnel structure deformation fracture and the inhomogeneous settlement that the construction of filling soil in tunnel top arouses, has the advantage that the construction is fast, the reliability is strong and the durability is good.
Description
Technical Field
The utility model relates to a road construction technical field especially relates to a box culvert for widening road.
Background
At present, when a road is widened, common soil is usually adopted for carrying out layered rolling to form a roadbed structure of the road; the engineering is widened to the road above the subway, receives the influence that tunnel structure buried depth and tunnel structure rigidity are less, if widen the fill soil load process of process, probably lead to the tunnel structure below to appear diseases such as uneven settlement or fracture, probably lead to the concrete structure of tunnel structure to fall the piece and gush the great risk of water gushing and sand to take place when serious. And. The box culvert for road widening provided by the prior art can cause the problems of complex construction, low road reliability, poor quality, poor durability and the like in road widening engineering due to the structural influence of the box culvert.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a box culvert for widening road has reduced newly-built road bed banket load of widening the road when the construction, has reduced the additional load of tunnel structure and the disturbance of tunnel country rock, avoids the tunnel structure deformation fracture and the inhomogeneous settlement that tunnel top banket construction arouses, has the advantage that the construction is fast, the reliability is strong and the durability is good.
In order to overcome the defect among the above-mentioned prior art, the embodiment of the utility model provides a box culvert for widening road, include:
the device comprises a top plate, a bottom plate, an inclined plate, a vertical plate, a middle partition plate and an antiskid plate;
the top plate is opposite to the bottom plate; the inclined plate is used for connecting the top plate and the bottom plate; the vertical plate is used for sealing a three-dimensional structure formed by the top plate, the bottom plate and the inclined plate, so that the top plate, the bottom plate, the inclined plate and the vertical plate form a closed quadrangular prism;
the middle partition plates are vertically arranged between the top plate and the bottom plate at equal intervals;
the antiskid plate is fixedly connected with the lower surface of the bottom plate, is parallel to the vertical plate and is perpendicular to the middle partition plate.
Preferably, the thickness of the top plate is in the range of 300 mm to 500 mm.
Preferably, the thickness of the base plate ranges from 300 mm to 500 mm.
Preferably, the number of the intermediate bulkheads is determined according to road vehicle load.
Preferably, the number of the antiskid plates is at least two, and the antiskid plates are symmetrical to each other about the central axis of the base plate.
Preferably, the box culvert is a reinforced concrete box culvert.
Compared with the prior art, the embodiment of the utility model provides a box culvert for widening road has reduced newly-built road bed banket load of widening the road when the construction, has reduced the additional load of tunnel structure and the disturbance of tunnel country rock, avoids tunnel structure deformation fracture and the inhomogeneous settlement that tunnel top banket construction arouses, has the advantage that the construction is fast, the reliability is strong and the durability is good.
Drawings
Fig. 1 is a schematic perspective view of a box culvert provided in an embodiment of the present invention;
fig. 2 is a front view of a three-dimensional structure of a box culvert provided in an embodiment of the present invention;
fig. 3 is a longitudinal sectional view of a box culvert in construction according to an embodiment of the present invention;
figure 4 is a cross-sectional view of a box culvert in accordance with an embodiment of the present invention;
fig. 5 is a plan view of the construction box culvert and the widened road provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1-4, an embodiment of the present invention provides a box culvert 2 for widening roads, where fig. 1 is a three-dimensional structure diagram of the box culvert, and fig. 2 is a front view of the box culvert structure; fig. 3 and 4 are a longitudinal sectional view and a cross sectional view of a box culvert in construction according to an embodiment of the present invention; the box culvert 2 includes: the device comprises a top plate 21, a bottom plate 22, an inclined plate 23, a vertical plate 24, a middle partition plate 25 and an antiskid plate 26;
the top plate 21 is opposite to the bottom plate 22 to form the upper surface and the lower surface of the prism, and the top plate 21 and the bottom plate 22 are both rectangular; the inclined plates 23 comprise two inclined plates which are respectively used for connecting the top plate 21 and the bottom plate 22 to form the left surface and the right surface of the prism, and the two inclined plates 23 are rectangular; the vertical plates 24 comprise two vertical plates which are respectively used for sealing a three-dimensional structure formed by enclosing the top plate 21, the bottom plate 22 and the inclined plate 23 to form the front and back surfaces of a prism, the two vertical plates 24 are trapezoidal, the middle partition plates 25 are vertically arranged between the top plate 21 and the bottom plate 22 at equal intervals, and the number of the middle partition plates can be adjusted according to actual needs; the anti-skid plate 26 is arranged below the bottom plate 22, is parallel to the vertical plate 24 and is perpendicular to the middle partition plate 25.
In one embodiment, the thickness of the top plate 21 ranges from 300 mm to 500 mm.
In one embodiment, the thickness of the base plate 22 ranges from 300 mm to 500 mm.
In one embodiment, the number of midplanes 25 is determined based on road vehicle load.
In one embodiment, the cleat 26 comprises at least two and is symmetrical about the central axis of the base plate;
in one embodiment, the box culvert is a reinforced concrete box culvert, wherein the material properties of the reinforced concrete box culvert are determined by the reinforced concrete box culvert. Firstly, the reinforcing steel bars and the concrete have approximately the same linear expansion coefficient, and excessive stress cannot be generated due to different environments. Secondly, there is good adhesion between the reinforcement and the concrete, and sometimes the surface of the reinforcement is also machined with spaced ribs (called deformed bars) to improve the mechanical engagement between the concrete and the reinforcement, and when this is still insufficient to transmit the tensile forces between the reinforcement and the concrete, the ends of the reinforcement are typically hooked 180 degrees. In addition, the alkaline environment provided by calcium hydroxide in the concrete forms a layer of passivation protective film on the surface of the steel bar, so that the steel bar is less prone to corrosion compared with the neutral and acidic environments.
Please refer to fig. 5, a certain embodiment of the present invention provides a planar top view of a construction box culvert and a widened road, wherein an original road 1 is located above a subway tunnel 3, the tunnel 3 is composed of 1 or more tunnels, the widened road 4 is located outside the original road 1 and above the subway tunnel 3, and 2 is a box culvert body.
In order to help understand the utility model provides a concrete method of box culvert when the construction, the utility model discloses a certain embodiment still provides this box culvert and widens road construction method's flow, include:
(1) acquiring the buried depth and the structure of the tunnel, and acquiring the position of the tunnel structure on the ground according to the side line of the tunnel;
(2) calculating the additional stress of the tunnel structure caused by roadbed filling according to the ground elevation and the designed pavement elevation within the road widening range; when the additional stress of the tunnel structure caused by roadbed filling does not meet the stress requirement, calculating the additional stress caused by the dead weight of the box culvert structure; the roadbed filling height is the difference value between the designed pavement elevation and the current pavement elevation;
(3) judging additional stress caused by the self weight of the box culvert structure and a first preset threshold, and excavating a soil layer with the thickness of 1-3 meters downwards when the additional stress is greater than the first preset threshold; to be used as a road to be widened above the tunnel;
(4) filling the two sides of the road to be widened and the outer side of the tunnel, wherein the filling boundary is a stable slope which is downward at an included angle of 30 degrees with the vertical direction and is tangent to the bottom edge of the tunnel;
(5) constructing the box culvert by taking the stable slope and the side slope as boundaries;
(6) judging whether the bearing capacity of the box culvert substrate stratum is greater than or equal to a second preset threshold value or not; and if not, taking foundation reinforcement measures until the bearing capacity of the foundation layer of the box culvert is greater than or equal to a second preset threshold value, namely completing the box culvert construction when the bearing capacity requirement is met.
The embodiment of the utility model provides a box culvert for widening road has reduced newly-built road bed earth-filling load of widening the road when the construction, has reduced the additional load of tunnel structure and the disturbance of tunnel country rock, avoids the tunnel structure deformation fracture and the uneven settlement that the construction of filling soil above the tunnel arouses, has the advantage that the construction is fast, the reliability is strong and the durability is good.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (6)
1. A box culvert for widening roads, comprising:
the device comprises a top plate, a bottom plate, an inclined plate, a vertical plate, a middle partition plate and an antiskid plate;
the top plate is opposite to the bottom plate; the inclined plate is used for connecting the top plate and the bottom plate; the vertical plate is used for sealing a three-dimensional structure formed by the top plate, the bottom plate and the inclined plate, so that the top plate, the bottom plate, the inclined plate and the vertical plate form a closed quadrangular prism;
the middle partition plates are vertically arranged between the top plate and the bottom plate at equal intervals;
the antiskid plate is fixedly connected with the lower surface of the bottom plate, is parallel to the vertical plate and is perpendicular to the middle partition plate.
2. A box culvert for widening roads according to claim 1, wherein said roof plate has a thickness in the range of 300 mm to 500 mm.
3. A box culvert for widening roads according to claim 1, wherein said bottom plate has a thickness in the range of 300 mm to 500 mm.
4. A box culvert for widening roads according to claim 1, wherein the number of said intermediate bulkheads is determined according to road vehicle load.
5. A box culvert for widening roads according to claim 1, wherein said number of said skid plates comprises at least two, and are symmetrical to each other about a central axis of the bottom plate.
6. A box culvert for widening roads according to claim 1, characterized in that said box culvert is a reinforced concrete box culvert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258227.6U CN214883073U (en) | 2020-12-29 | 2020-12-29 | Box culvert for widening roads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258227.6U CN214883073U (en) | 2020-12-29 | 2020-12-29 | Box culvert for widening roads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214883073U true CN214883073U (en) | 2021-11-26 |
Family
ID=78911322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023258227.6U Active CN214883073U (en) | 2020-12-29 | 2020-12-29 | Box culvert for widening roads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214883073U (en) |
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2020
- 2020-12-29 CN CN202023258227.6U patent/CN214883073U/en active Active
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