CN210194455U

CN210194455U - Prefabricated assembled reinforced concrete culvert apron

Info

Publication number: CN210194455U
Application number: CN201920794656.3U
Authority: CN
Inventors: Xiaobo Cheng; 程晓波; Wengang Wu; 吴文刚; Yingliang Wu; 吴英良; Wei Ling; 凌伟; Fugui Li; 李富贵; Yu Liu; 刘宇
Original assignee: CITIC Guoan Construction Group Co Ltd
Current assignee: CITIC Guoan Construction Group Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-03-27
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a prefabricated assembly type reinforced concrete culvert cover plate, which comprises a cover plate, wherein two sides of the cover plate are provided with flanges extending downwards, the flanges and the cover plate are prefabricated integrated parts, and the inner side surfaces of the flanges are provided with grooves which are pulled through the cover plate along the length direction of the cover plate; the water-stop water; the top surface of reinforcing plate is movably inlayed and is established the clamp plate, sets up a plurality of evenly distributed's first elastic component between clamp plate and the apron, and first elastic component is in compression state. An object of the utility model is to provide a prefabricated assembled reinforced concrete culvert apron to solve among the prior art to the abundant area of water yield, the culvert is from the problem that upper portion soaked easily, realizes preventing that culvert upper portion from soaking, improving site operation efficiency's purpose.

Description

Prefabricated assembled reinforced concrete culvert apron

Technical Field

The utility model relates to a culvert field, concretely relates to prefabricated assembled reinforced concrete culvert apron.

Background

The culvert is a drainage channel (water channel) which is arranged below a roadbed and built below a road surface in order to ensure that a road can smoothly pass through a water channel without obstructing traffic in the road engineering construction, and water can flow through the lower surface of the road through the structure. The water-saving road is used for draining flood across natural valley depressions, or is used as an interchange for people, livestock and vehicles across large and small roads, or is used as a ditch for farmland irrigation. The culvert mainly comprises a tunnel body, a foundation, an end, a wing wall and the like. The culvert is built by common materials such as bricks, stones, concrete, reinforced concrete and the like according to the principle of the communicating vessels. Generally, the aperture is small, and the shape is tubular, box-shaped, arch-shaped and the like.

Culverts can be classified into a variety of types according to different standards. The concrete culvert can be divided into a brick culvert, a stone culvert, a concrete culvert and a reinforced concrete culvert according to building materials; according to the structural form, the culvert can be divided into a round pipe culvert, an arch culvert, a cover plate culvert and a box culvert. The culverts can be classified into open culverts and hidden culverts according to different soil filling conditions. The open culvert is characterized in that no filling soil is filled at the top of the tunnel, and the open culvert is suitable for low embankments and shallow trenches. The top of the hidden culvert is filled with soil, and the minimum soil filling thickness is more than 50cm, so that the hidden culvert is suitable for high embankments and deep ditches. According to the classification of water conservancy performance, the culvert can be divided into an unstressed culvert, a semi-stressed culvert and a stressed culvert. The non-pressure culvert refers to a culvert of which the water level of water flow at an inlet is lower than the upper edge of a tunnel opening and the water surface does not contact the top of the culvert within the full length range of a tunnel body. The semi-pressure culvert refers to a culvert of which the water level of water flow at an inlet is higher than the upper edge of a tunnel opening and part of the tunnel top bears the pressure of a water head. The inlet and outlet of the pressure culvert are submerged by water, and the water is drained from all the cross sections in the full-length range of the culvert.

For the existing concrete culvert, the cast-in-place mode is adopted for integrated molding, and the construction process has the advantages of high efficiency, short construction period and good water immersion resistance effect of the bottom of the culvert on water flow. And because the culvert generally leads water through the culvert, the construction mode can meet the requirements of most culverts. However, in some areas with abundant water, such as rainforests and wetlands with large precipitation, the problem of water immersion at the upper part of the culvert is always caused by water loss and sedimentation of cast-in-place concrete due to excessive water.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated assembled reinforced concrete culvert apron to solve among the prior art to the abundant area of water yield, the culvert is from the problem that upper portion soaked easily, realizes preventing that culvert upper portion from soaking, improving site operation efficiency's purpose.

The utility model discloses a following technical scheme realizes:

a prefabricated assembly type reinforced concrete culvert cover plate comprises a cover plate, wherein flanges extending downwards are arranged on two sides of the cover plate, the flanges and the cover plate are prefabricated integrated parts, and grooves for pulling through the cover plate along the length direction of the cover plate are arranged on the inner side surfaces of the flanges; the water-stop water-; the top surface of reinforcing plate is movably embedded with a pressing plate, a plurality of first elastic pieces which are uniformly distributed are arranged between the pressing plate and the cover plate, and the first elastic pieces are in a compressed state.

In the prior art, for the condition that water is easy to accumulate on some upper parts, such as rainforests, wetlands and other environments with large precipitation, the problem of water immersion on the upper parts of the culvert always exists, but the reason is that the culvert formed is easy to form water loss gaps on the top due to water loss settlement of cast-in-place concrete, and then the water easily permeates from the upper parts to the outside when the water amount is sufficient. Therefore the utility model discloses at first provide a prefabricated assembled reinforced concrete culvert apron, the both sides of apron set up the edge of a wing that stretches out downwards, and the both sides edge of a wing is used for installing outside culvert both sides board, and the edge of a wing is prefabricated integrative with the apron, so the edge of a wing is fabulous with the wholeness of apron, can regard as an integral part to see completely. The inboard surface on the edge of a wing sets up the recess that draws through the apron along apron length direction, the placing of the reinforcing plate of being convenient for, place on the lower surface of both sides recess at the relative both ends of reinforcing plate, be the below that the reinforcing plate fully paved the apron on the horizontal plane promptly, the reinforcing plate is at first used for strengthening the intensity of apron, improve the impact resistance and the anti erosion ability of culvert bottom, set up simultaneously between the reinforcing plate both ends and the recess top surface that corresponds and hinder the water pad, it is that the bottom surface that hinders the water pad is located the reinforcing plate upper surface promptly, the top surface and the recess top surface laminating that hinder the water pad. The water blocking cushion is made of water blocking materials as the name implies, and is used for blocking water from leaking out of a gap between the reinforcing plate and the flange. The top surface activity of reinforcing plate is inlayed and is established the clamp plate, set up a plurality of evenly distributed's first elastic component between clamp plate and the apron, first elastic component is in compression state, therefore first elastic component can exert decurrent pressure for the clamp plate all the time, presses the clamp plate to hold on the reinforcing plate, and then presses the reinforcing plate all the time to hold on the recess of both sides. Through the action of the elastic force of the first elastic pieces, the reinforcing plates are always stabilized in the grooves on the two sides, the reinforcing plates are prevented from shaking in the vertical direction, and the external force applied to the culvert in the vertical direction is consumed through the elastic potential energy of the first elastic pieces, so that the earthquake resistance grade of the whole culvert is obviously improved; simultaneously also can make the bottom surface of reinforcing plate tightly be pressed on both sides recess all the time, further improve the leakproofness between reinforcing plate and the edge of a wing, further the prevention moisture is from oozing from the culvert top when too much. The utility model discloses a prefabricated, integrative apron and both sides edge of a wing that forms for when the water yield is abundant, soak to the water at apron top can't be followed the apron and oozed outward, water is pushed down and is controlled by the elastic potential energy of first elastic component by the reinforcing plate. When the water pressure is too high and exceeds the elastic force of all the first elastic parts, the reinforcing plate is only lifted upwards properly to automatically create a larger overflowing area, and the cover plate cannot be forcibly pressed to cause the seepage from the cover plate. And the utility model discloses the apron that the prefabrication formed can reduce the on-the-spot pouring volume, consequently is showing the efficiency that has improved the site operation.

Furthermore, the guide plate is hinged to the inner side of the bottom surface of the flange, the guide plate is connected with the bottom surface of the corresponding flange through the second elastic piece, and when no external force acts, the guide plate inclines towards the outer side of the flange from top to bottom. The flange inner side refers to the side of the flange facing the inner direction of the culvert, and the flange outer side refers to the side of the flange departing from the inner direction of the culvert. The guide plate is hinged to the inner side of the bottom surface of the flange, so that the guide plate can rotate at the bottom of the flange. When no exogenic effect is used, deflector top-down is to the outside direction slope of flange to hoist the utility model provides a during the apron, can get into between the both sides flange through the deflector of both sides gradually with the curb plate guide of culvert both sides, ensure the smooth hoist and mount assembly in scene. In addition the second elastic component can be when deflector and culvert curb plate contact for the deflector is exerted the effort to the curb plate all the time, and then borrows the automatic of the apron and both sides edge of a wing under the curb plate realizes hoist and mount state by the reaction force of curb plate to the deflector and just, ensures along with constantly transferring making the stable card in both sides edge of a wing outside the culvert curb plate of both sides to the apron.

Furthermore, the top surface of the reinforcing plate is provided with a groove body matched with the pressing plate, the pressing plate is placed in the groove body, and the pressing plate is made of wood. The setting of clamp plate can also avoid the reinforcing plate whole pouring and lead to the unchangeable installation of first elastic component to be fixed. This scheme intermediate pressure board is formed by the timber preparation, consequently can't take one's place the back with the reinforcing plate jointly, and the clamp plate that will fix first elastic component again impels gradually in the cell body, greatly reduced the production and the construction degree of difficulty, make the utility model discloses the structure of covering that protects can be feasible carry out fast production, the on-the-spot installation clamp plate of being convenient for simultaneously.

Preferably, the two ends of the reinforcing plate are connected with the grooves on the two sides through cement mortar; the water-blocking cushion is made of rubber, and the first elastic piece is a disc spring.

Preferably, the joint of two adjacent cover plates is provided with a cement paste layer and a waterproof layer in sequence from bottom to top, and further comprises a steel cover for coating the cement paste layer and the waterproof layer, and the steel cover is simultaneously fixed on the top surfaces of the two cover plates. The culvert is different from open cut tunnels and other tunnel structures, the length of the culvert is not too long generally, and the existing precast concrete method can completely meet the prefabrication of culvert cover plates of more than twenty meters. When the great apron gross weight of culvert length is too big when being not convenient for transport, then divide into the multistage prefabrication with the apron to splice in proper order at the scene, then this scheme is selected for use under this kind of circumstances, sets gradually cement paste layer, waterproof layer from bottom to top in the junction of two adjacent apron, and reuse steel sheathing covers cement paste layer, waterproof layer, and good water-proof effects can be ensured to backfill stone at last.

A manufacturing method of a prefabricated reinforced concrete culvert cover plate comprises the following steps:

(a) prefabricating a cover plate and a flange, and integrally pouring and molding the cover plate and the flange;

(b) prefabricating a reinforcing plate, preparing a pressing plate, and fixing a first elastic piece on the surface of the pressing plate;

(c) turning over the cover plate and the flanges to enable the flanges to face upwards and the cover plate to face downwards, fixing the water blocking pads on two sides, coating cement mortar on two sides of the reinforcing plate, gradually pushing the reinforcing plate into the grooves on two sides, and keeping the reinforcing plate suspended; gradually pushing the pressure plate into a gap between the reinforcing plate and the cover plate;

(d) and turning over the whole body and resetting.

In the prefabricating process, after the cover plate and the reinforcing plate are prepared respectively, the cover plate is turned over, the flange faces upwards and the cover plate is arranged downwards, the reinforcing plate and the pressing plate can be quickly and conveniently in place, and gravity is fully utilized for assisting in installation.

Preferably, in the process of pushing the pressing plate in the step (c), when the first elastic member is about to enter the gap between the reinforcing plate and the cover plate, the first elastic member is artificially compressed until the first elastic member is released after partially entering the gap between the reinforcing plate and the cover plate.

Preferably, reinforcing steel bars are arranged in the cover plate. And forming the reinforced concrete culvert cover plate.

An assembling method of a prefabricated assembly type reinforced concrete culvert cover plate comprises the following steps of:

(i) completing the construction of the bottom plate and the side plate of the culvert;

(ii) hoisting the cover plate to enable flanges at two sides to be placed down along the outer walls of the side plates at two sides until the reinforcing plate is placed at the top end of the side plate;

(iii) (iii) lifting adjacent decking sheets and repeating step (ii);

(iv) and sequentially coating cement paste and waterproof paint at the joint of the two adjacent cover plates, and coating the joint with a steel cover.

Preferably, the two ends of the steel cover are respectively fixed on the tops of the two adjacent cover plates by bolts.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model relates to a prefabricated assembled reinforced concrete culvert apron forms, integrative apron and both sides edge of a wing through the prefabrication for when the water yield is abundant, soak to the unable exosmosis of apron department of water at apron top, water is pushed down by the reinforcing plate and is controlled by the elastic potential energy of first elastic component. When the water pressure is too high and exceeds the elastic force of all the first elastic parts, the reinforcing plate is only lifted upwards properly to automatically create a larger overflowing area, and the cover plate cannot be forcibly pressed to cause the seepage from the cover plate. And the utility model discloses the apron that the prefabrication formed can reduce the on-the-spot pouring volume, consequently is showing the efficiency that has improved the site operation.

2. The utility model relates to a prefabricated assembled reinforced concrete culvert apron blocks water and fills up and is used for the separation moisture to ooze outward in the gap between reinforcing plate and the edge of a wing. Through the action of the elastic force of the first elastic pieces, the reinforcing plates are always stabilized in the grooves on the two sides, the reinforcing plates are prevented from shaking in the vertical direction, and the external force applied to the culvert in the vertical direction is consumed through the elastic potential energy of the first elastic pieces, so that the earthquake resistance grade of the whole culvert is obviously improved; simultaneously also can make the bottom surface of reinforcing plate tightly be pressed on both sides recess all the time, further improve the leakproofness between reinforcing plate and the edge of a wing, further the separation moisture is oozed from the gap between reinforcing plate and the edge of a wing interior exosmosis.

3. The utility model relates to a prefabricated assembled reinforced concrete culvert apron is hoisting the utility model provides a during the apron, can get into between the both sides edge of a wing with the curb plate guide of culvert both sides gradually through the deflector of both sides, ensure the smooth hoist and mount assembly in scene. In addition the second elastic component can be when deflector and culvert curb plate contact for the deflector is exerted the effort to the curb plate all the time, and then borrows the automatic of the apron and both sides edge of a wing under the curb plate realizes hoist and mount state by the reaction force of curb plate to the deflector and just, ensures along with constantly transferring making the stable card in both sides edge of a wing outside the culvert curb plate of both sides to the apron.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention in a culvert;

FIG. 3 is a schematic view of a joint between two adjacent cover plates according to an embodiment of the present invention;

fig. 4 is a schematic diagram of the manufacturing process of the embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-cover plate, 2-flange, 3-groove, 4-reinforcing plate, 5-water-blocking cushion, 6-pressing plate, 7-first elastic part, 8-guide plate, 9-second elastic part, 10-reinforcing steel bar, 11-bottom plate, 12-side plate, 13-steel cover, 14-cement paste layer and 15-waterproof layer.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

the prefabricated assembly type reinforced concrete culvert cover plate as shown in figures 1 to 3 comprises a cover plate 1, wherein flanges 2 extending downwards are arranged on two sides of the cover plate 1, the flanges 2 and the cover plate 1 are prefabricated and integrated, and grooves 3 for pulling through the cover plate 1 along the length direction of the cover plate 1 are arranged on the inner side surfaces of the flanges 2; the water-stop water-saving device is characterized by further comprising a reinforcing plate 4, wherein two opposite ends of the reinforcing plate 4 are placed on the lower surfaces of the grooves 3 on the two sides, and water-stop cushions 5 are arranged between the two ends of the reinforcing plate 4 and the top surfaces of the corresponding grooves 3; the top surface of reinforcing plate 4 is movably embedded with a pressing plate 6, a plurality of first elastic pieces 7 which are uniformly distributed are arranged between pressing plate 6 and cover plate 1, and first elastic pieces 7 are in a compressed state. Wherein the water-blocking cushion 5 is a rubber block.

In the embodiment, the prefabricated and integrated cover plate and the flanges at the two sides enable water soaked to the top of the cover plate to be incapable of seeping out of the cover plate when the water amount is sufficient, the water is pressed by the reinforcing plate 4 and is controlled by the elastic potential energy of the first elastic piece 7. When the water pressure is too high to exceed the elastic force of all the first elastic elements 7, the reinforcing plate 4 is only lifted upwards to a proper degree to automatically create a larger flow area, and the cover plate is not forcibly pressed to cause the seepage from the cover plate. And the utility model discloses the apron that the prefabrication formed can reduce the on-the-spot pouring volume, consequently is showing the efficiency that has improved the site operation.

In addition, in the embodiment, the reinforcing plate 4 is always stabilized in the grooves on the two sides by the action of the elastic force of the first elastic parts 7, so that the reinforcing plate 4 is prevented from shaking in the vertical direction, and the external force applied to the culvert in the vertical direction is consumed by the elastic potential energy of the first elastic parts 7, so that the seismic grade of the whole culvert is obviously improved; simultaneously also can make the bottom surface of reinforcing plate 4 tightly be pressed on both sides recess all the time, further improve the leakproofness between reinforcing plate 4 and the edge of a wing, further the separation moisture is from oozing in the gap between reinforcing plate 4 and the edge of a wing.

Example 2:

as shown in fig. 1 to 3, in the prefabricated reinforced concrete culvert cover plate, on the basis of embodiment 1, the inner sides of the bottom surfaces of the flanges 2 are hinged with the guide plates 8, the guide plates 8 are connected with the bottom surfaces of the corresponding flanges 2 through the second elastic members 9, and when no external force is applied, the guide plates 8 are inclined towards the outer sides of the flanges 2 from top to bottom. The top surface of the reinforcing plate 4 is provided with a groove body matched with the pressing plate 6, the pressing plate 6 is placed in the groove body, and the pressing plate 6 is made of wood. The two ends of the reinforcing plate 4 are connected with the grooves 3 on the two sides through cement mortar; the water-blocking cushion 5 is made of rubber, and the first elastic piece 7 is a disc spring. The joint of two adjacent cover plates 1 is provided with a cement paste layer 14 and a waterproof layer 15 from bottom to top in sequence, and further comprises a steel cover 13 covering the cement paste layer 14 and the waterproof layer 15, and the steel cover 13 is fixed on the top surfaces of the two cover plates 1 simultaneously.

Example 3:

the method for manufacturing the prefabricated assembly type reinforced concrete culvert cover plate according to the

embodiment

1 or 2 comprises the following steps:

(a) prefabricating the cover plate 1 and the flange 2, and integrally casting the cover plate 1 and the flange 2;

(b) prefabricating a reinforcing plate 4, preparing a pressing plate 6, and fixing a first elastic piece 7 on the surface of the pressing plate 6;

(c) turning the cover plate 1 and the flange 2 to enable the flange 2 to face upwards and the cover plate 1 to face downwards, fixing the water blocking pads 5 on two sides, coating cement mortar on two sides of the reinforcing plate 4, gradually pushing the reinforcing plate 4 into the grooves 3 on two sides, and keeping the reinforcing plate 4 suspended; gradually pushing the pressing plate 6 into the gap between the reinforcing plate 4 and the cover plate 1;

(d) and turning over the whole body and resetting.

Preferably, in the process of pushing the pressing plate 6 in step (c), when the first elastic member 7 is about to enter the gap between the reinforcing plate 4 and the cover plate 1, the first elastic member 7 is artificially compressed until the first elastic member 7 is released after partially entering the gap between the reinforcing plate 4 and the cover plate 1.

Preferably, reinforcing bars 10 are arranged in the cover plate 1.

After the culvert cover plate is prefabricated according to the method in the embodiment, the culvert cover plate is transported to the site to be assembled according to the following method:

(i) completing the construction of the culvert bottom plate 11 and the side plates 12;

(ii) lifting the cover plate 1 to enable the flanges 2 on the two sides to be placed down along the outer walls of the side plates 12 on the two sides until the reinforcing plate 4 is placed at the top ends of the side plates 12;

(iii) (iii) lifting the adjacent decking 1 and repeating step (ii);

(iv) cement paste and waterproof paint are sequentially coated at the joint of the two adjacent cover plates 1 and are coated by a steel cover 13.

Preferably, the method further comprises the step of fixing two ends of the steel cover 13 on the tops of two adjacent cover plates 1 respectively by using bolts.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The prefabricated assembly type reinforced concrete culvert cover plate is characterized by comprising a cover plate (1), wherein flanges (2) extending downwards are arranged on two sides of the cover plate (1), the flanges (2) and the cover plate (1) are prefabricated and integrated, and grooves (3) which are pulled through the cover plate (1) along the length direction of the cover plate (1) are formed in the inner side surfaces of the flanges (2); the water-proof structure is characterized by further comprising reinforcing plates (4), wherein two opposite ends of each reinforcing plate (4) are placed on the lower surfaces of the grooves (3) on the two sides, and water-proof cushions (5) are arranged between the two ends of each reinforcing plate (4) and the top surfaces of the corresponding grooves (3); the top surface activity of reinforcing plate (4) is inlayed and is established clamp plate (6), set up a plurality of evenly distributed's first elastic component (7) between clamp plate (6) and apron (1), first elastic component (7) are in compression state.

2. The prefabricated assembly type reinforced concrete culvert cover plate according to claim 1, characterized in that, the inner side of the bottom surface of the flange (2) is hinged with a guide plate (8), the guide plate (8) is connected with the bottom surface of the corresponding flange (2) through a second elastic member (9), and when no external force is applied, the guide plate (8) is inclined towards the outer side direction of the flange (2) from top to bottom.

3. The prefabricated reinforced concrete culvert cover plate of claim 1, wherein the top surface of the reinforcing plate (4) is provided with a groove body matched with the pressing plate (6), the pressing plate (6) is placed in the groove body, and the pressing plate (6) is made of wood.

4. The prefabricated reinforced concrete culvert cover plate of claim 1, characterized in that the two ends of the reinforcing plate (4) are connected with the grooves (3) at the two sides through cement mortar; the water-blocking cushion (5) is made of rubber, and the first elastic piece (7) is a disc spring.

5. The prefabricated reinforced concrete culvert cover plate of claim 1, characterized in that a cement paste layer (14) and a waterproof layer (15) are sequentially arranged at the joint of two adjacent cover plates (1) from bottom to top, the prefabricated reinforced concrete culvert cover plate further comprises a steel cover (13) covering the cement paste layer (14) and the waterproof layer (15), and the steel cover (13) is simultaneously fixed on the top surfaces of the two cover plates (1).