Water passing box culvert structure capable of achieving micro-deformation control

Abstract

The water passing box culvert structure capable of achieving micro-deformation control comprises a box culvert, a box culvert top plate and a box culvert bottom plate are arranged at the top and the bottom of the box culvert correspondingly, and a stress pier, backfill, a protection pier and a waterproof reinforced concrete protection wall are sequentially arranged in the box culvert from inside to outside. A first heat preservation structure is arranged on the periphery of the stress pier, a second heat preservation structure is arranged in a gap between the backfill and the protection pier, and a third heat preservation structure is arranged in a gap between the protection pier and the waterproof reinforced concrete protection wall. The method has the beneficial effects that the heat preservation and insulation layer is arranged on the periphery of the box culvert, the influence of temperature change on box culvert deformation is relieved, and besides the heat preservation and insulation layer is attached, the micro-deformation is further controlled by adopting the method of backfilling the backfilling material with the small heat conductivity coefficient and the large specific heat capacity.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic box culverts, and in particular to a water box culvert structure capable of realizing micro-deformation control. Background Art

[0002] Box culvert is a commonly used water-passing structure in water conservancy and municipal engineering. It has the characteristics of simple structure, convenient construction, good force-bearing performance, etc. It has a wide range of applications. Box culvert is a box-shaped frame, generally made of reinforced concrete structure, composed of one or more rectangular sections. Conventional box culverts do not have the ability to control micro-deformation, that is, with the change of ambient temperature, the box culvert reinforced concrete material will have a certain micro-deformation under the action of thermal expansion and contraction. The micro-deformation is generally not large and has little impact on conventional projects. However, when there are important scientific research equipment or other important instruments that are sensitive to micro-deformation on the upper part of the box culvert, it is necessary to improve the traditional box culvert structure and reduce the micro-deformation through certain technical means, thereby reducing the impact of micro-deformation on the upper structure.

[0003] At present, conventional box culverts cannot control the micro-deformation caused by thermal expansion and contraction of materials under temperature changes. Therefore, it is urgent to develop a water-passing box culvert structure that can achieve micro-deformation control, so as to meet the requirements of important equipment and instruments on the upper part of the box culvert for micro-deformation control.

[0004] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a water box culvert structure capable of realizing micro-deformation control in view of the above-mentioned deficiencies and defects of the prior art, so as to solve the above-mentioned problems.

[0006] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0007] A water-passing box culvert structure capable of realizing micro-deformation control is characterized in that it comprises a box culvert, wherein the top and bottom of the box culvert are respectively provided with a culvert top plate and a culvert bottom plate, wherein the interior of the box culvert is provided with a load-bearing pier, backfill material, a protection pier, and a waterproof reinforced concrete protection wall in sequence from the inside to the outside, wherein a first insulation structure is arranged around the load-bearing pier, a second insulation structure is arranged in a gap between the backfill material and the protection pier, and a third insulation structure is arranged in a gap between the protection pier and the waterproof reinforced concrete protection wall.

[0008] In a preferred embodiment of the present invention, it also includes a fourth insulation structure which is arranged on the contact surface between the waterproof reinforced concrete protection wall and the box culvert top plate and the box culvert bottom plate and is not connected to the box culvert top plate and the box culvert bottom plate.

[0009] In a preferred embodiment of the present invention, a layer of reinforced concrete is cast on the upper surface of the box culvert top plate, and the layer of reinforced concrete is used to protect the thermal insulation layer on the upper part of the box culvert top plate.

[0010] In a preferred embodiment of the present invention, the first thermal insulation structure comprises a first thermal insulation layer, and the first thermal insulation layer is attached to the contact surface between the load-bearing pier and the backfill material.

[0011] In a preferred embodiment of the present invention, the second thermal insulation structure includes a second thermal insulation layer, which is respectively attached to the contact surface between the backfill material and the protective pier, the contact surface between the backfill material and the box culvert top plate, and the contact surface between the backfill material and the box culvert bottom plate.

[0012] In a preferred embodiment of the present invention, the third thermal insulation structure includes a third thermal insulation layer, which is respectively attached to the contact surface between the protective pier and the waterproof reinforced concrete protective wall and the contact surface between the protective pier and the culvert top plate and is not connected to the culvert top plate.

[0013] In a preferred embodiment of the present invention, the fourth thermal insulation structure includes a fourth thermal insulation layer, which is attached to the contact surface between the waterproof reinforced concrete protection wall and the box culvert top plate and box culvert bottom plate and is not connected to the box culvert top plate and box culvert bottom plate.

[0014] In a preferred embodiment of the present invention, the top of the load-bearing pier is connected to the top plate of the box culvert, and the bottom of the load-bearing pier is connected to the bottom plate of the box culvert.

[0015] In a preferred embodiment of the present invention, the protection pier is in the shape of a hollow long strip.

[0016] In a preferred embodiment of the present invention, the first thermal insulation structure, the second thermal insulation structure, the third thermal insulation structure, and the fourth thermal insulation structure are all made of polyethylene styrene boards, and the thickness of the polyethylene styrene boards is 10 cm.

[0017] Due to the adoption of the above technical scheme, the beneficial effects of the present invention are: a thermal insulation layer is arranged around the box culvert by the present invention to reduce the influence of temperature change on the deformation of the box culvert, and in addition to affixing the thermal insulation layer, a method of backfilling a backfill material with a small thermal conductivity coefficient and a large specific heat capacity is adopted to further control micro-deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is one of the plan views of the present invention.

[0020] Figure 2 It is a plan view of the protective pier of the present invention.

[0021] Figure 3 It is a plan view of the waterproof reinforced concrete protection wall of the present invention.

[0022] Figure 4 It is the second plan view of the present invention.

[0023] Figure 5 yes Figure 4 AA cross-section diagram.

[0024] Figure 6 yes Figure 4 Cross-sectional view of BB.

[0025] Figure 7 It is a perspective view of the present invention. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0027] See also Figures 1 to 7 A water-passing box culvert structure capable of realizing micro-deformation control is shown, comprising a box culvert 1. The box culvert 1 of the present invention takes a three-hole box culvert as an example, and there is an opening between two adjacent box culverts 1.

[0028] The top and bottom of the box culvert 1 are respectively provided with a box culvert top plate 2 and a box culvert bottom plate 3. A layer of reinforced concrete is poured on the upper surface of the box culvert top plate 2 in this embodiment, and the layer of reinforced concrete is used to protect the thermal insulation layer 2a on the top of the box culvert top plate 2.

[0029] The interior of the box culvert 1 is provided with a load-bearing pier 10, a backfill material 20, a protection pier 30, and a waterproof reinforced concrete protection wall 40 in sequence from the inside to the outside. A first insulation structure 10a is provided around the load-bearing pier 10, a second insulation structure 20a is provided in the gap between the backfill material 20 and the protection pier 30, and a third insulation structure 30a is provided in the gap between the protection pier 30 and the waterproof reinforced concrete protection wall 40.

[0030] The first thermal insulation structure 10a includes a first thermal insulation layer, which is attached to the contact surface between the load-bearing pier 10 and the backfill material 20. In this embodiment, the first thermal insulation layer is made of polyethylene styrene board with a thickness of 10 cm. The first thermal insulation layer 10a is attached to the four sides of the load-bearing pier 10 and a large amount of backfill material 20 is filled outside the thermal insulation layer for heat preservation. The backfill material is selected from materials with low thermal conductivity and large specific heat capacity.

[0031] The second thermal insulation structure 20a includes a second thermal insulation layer, which is respectively attached to the contact surface between the backfill material 20 and the protection pier 30, the contact surface between the backfill material 20 and the box culvert top plate 2, and the contact surface between the backfill material 20 and the box culvert bottom plate 3. In this embodiment, the second thermal insulation layer 20a is made of polyethylene benzene board with a thickness of 10 cm.

[0032] The third thermal insulation structure 30a includes a third thermal insulation layer, which is respectively attached to the contact surface between the protection pier 30 and the waterproof reinforced concrete protection wall 40 and the contact surface between the protection pier 30 and the culvert top plate 2 and is not connected to the culvert top plate 2. The third thermal insulation layer 30a in this embodiment is made of polyethylene benzene board with a thickness of 10 cm.

[0033] It also includes a fourth thermal insulation structure 40a which is arranged on the contact surface between the waterproof reinforced concrete protection wall 40 and the box culvert top plate 2 and the box culvert bottom plate 3 and is not connected to the box culvert top plate 2 and the box culvert bottom plate 3. The fourth thermal insulation structure 40a in this embodiment includes a fourth thermal insulation layer, and the thermal insulation layer 40a is attached to the contact surface between the waterproof reinforced concrete protection wall 40 and the box culvert top plate 2 and the box culvert bottom plate 3 and is not connected to the box culvert top plate 2 and the box culvert bottom plate 3. Specifically, the fourth thermal insulation structure 40a adopts a polyethylene benzene board with a thickness of 10 cm.

[0034] The top of the stress-bearing pier 10 is connected to the box culvert top plate 2, and the bottom of the stress-bearing pier 10 is connected to the box culvert bottom plate 3. Specifically, since it is a three-hole box culvert, four stress-bearing piers are set, the bottom of the stress-bearing pier 10 is connected to the box culvert bottom plate 3, and the top of the stress-bearing pier 10 is connected to the box culvert top plate 2. The force of the box culvert top plate 2 will be transmitted to the stress-bearing pier 10. The stress-bearing pier 10 is the key insulation object. After the stress-bearing pier 10 is affected by the temperature, it will expand and contract, which will directly affect the micro-deformation of the box culvert top plate 2.

[0035] The protection pier 30 is in the shape of a hollow long strip. The bottom of the protection pier 30 in this embodiment is connected to the bottom plate 3 of the box culvert, and the top part 31 of the protection pier 30 is connected to the top plate 2 of the box culvert (such as Figure 2As shown, it is mainly around the box culvert), the other part 32 is not connected to the box culvert top plate 2, an insulation layer 20a is attached between the protection pier 30 and the backfill material 20, and an insulation layer 30a is attached between the protection pier 30 and the waterproof reinforced concrete protection wall 40, but there will still be a certain deformation. The method of separating the top of a part of the protection pier from the box culvert top plate 2 can avoid the influence of thermal expansion and contraction of the protection pier 30 on the box culvert top plate 2 after being affected by temperature.

[0036] A waterproof reinforced concrete protective wall 40 is arranged around the protective pier 30, mainly used to ensure that the third thermal insulation layer 30a outside the protective pier 30 is not in contact with water. Specifically, the top and bottom of a portion 41 of the waterproof reinforced concrete protective wall 40 are connected to the box culvert 1 (such as Figure 3 As shown, it is mainly around the box culvert), the top and bottom of the other part 42 of the waterproof reinforced concrete protection wall 40 are not connected to the box culvert 1 (the reason why this part of the waterproof reinforced concrete protection wall 40 is not connected to the top and bottom plates of the box culvert is that a fourth thermal insulation layer 40a is to be attached between this part and the top and bottom plates of the box culvert).

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water culvert structure capable of realizing micro-deformation control, characterized in that: The invention comprises a box culvert, wherein the top and bottom of the box culvert are respectively provided with a box culvert top plate and a box culvert bottom plate, the interior of the box culvert is provided with load-bearing piers, backfill materials, protective piers, and waterproof reinforced concrete protective walls in sequence from the inside to the outside, a first thermal insulation structure is provided around the load-bearing piers, a second thermal insulation structure is provided in the gap between the backfill materials and the protective piers, and a third thermal insulation structure is provided in the gap between the protective piers and the waterproof reinforced concrete protective wall.

2. A water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: It also includes a fourth insulation structure which is arranged on the contact surface between the waterproof reinforced concrete protection wall and the box culvert top plate and the box culvert bottom plate and is not connected to the box culvert top plate and the box culvert bottom plate.

3. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: A layer of reinforced concrete is poured on the upper surface of the box culvert top plate, and the layer of reinforced concrete is used to protect the thermal insulation layer on the upper part of the box culvert top plate.

4. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The first thermal insulation structure comprises a first thermal insulation layer, and the first thermal insulation layer is attached to the contact surface between the load-bearing pier and the backfill material.

5. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The second thermal insulation structure includes a second thermal insulation layer, which is respectively attached to the contact surface between the backfill material and the protection pier, the contact surface between the backfill material and the box culvert top plate, and the contact surface between the backfill material and the box culvert bottom plate.

6. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The third thermal insulation structure includes a third thermal insulation layer, which is respectively attached to the contact surface between the protection pier and the waterproof reinforced concrete protection wall and the contact surface between the protection pier and the box culvert top plate and is not connected to the box culvert top plate.

7. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The fourth thermal insulation structure includes a fourth thermal insulation layer, which is attached to the contact surface between the waterproof reinforced concrete protection wall and the box culvert top plate and the box culvert bottom plate and is not connected to the box culvert top plate and the box culvert bottom plate.

8. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The top of the stress-bearing pier is connected to the top plate of the box culvert, and the bottom of the stress-bearing pier is connected to the bottom plate of the box culvert.

9. The water culvert structure capable of realizing micro-deformation control according to claim 1, characterized in that: The protective pier is in a hollow long strip shape.

10. The water culvert structure capable of realizing micro-deformation control according to claim 2, characterized in that: The first thermal insulation structure, the second thermal insulation structure, the third thermal insulation structure and the fourth thermal insulation structure are all made of polyethylene styrene boards, and the thickness of the polyethylene styrene boards is 10 cm.

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