Bridge Linear Drain system with improved rainwater collection structure

Abstract

The present invention provides a bridge pre-drainage system having a structure for improving rainwater collection, which is installed on the road surface of a bridge to discharge rainwater on the road surface, so as to efficiently improve the collection of rainwater for pre-drainage toward transverse and longitudinal drainage by guiding the discharge of rainwater toward a catchment on the side of the bridge. The system comprises: a catchment channel formed to be blocked out on the side of the road surface of the bridge deck so as to allow rainwater flowing along the road surface to flow in; a collection unit arranged at a distance corresponding to the side of the catchment channel and installed embedded on a guard wall to collect rainwater flowing in from the catchment channel in a lateral direction; a transverse drainage pipe with one end connected to the collection unit to induce drainage of rainwater and extended in a downward sloping direction toward the outside of the bridge; and a longitudinal drainage pipe installed on the guard wall of the bridge to extend in a front-rear longitudinal direction and drain rainwater discharged from the transverse drainage pipe; and a rainwater collection means that closes the rainwater flow path of the catchment channel between the catchment channel and the collection unit to induce drainage toward the collection unit.

Description

Technology Field

[0001] The present invention relates to a bridge drainage system having a structure for improving rainwater collection, and more specifically, to a bridge drainage system having a structure for improving rainwater collection that guides the discharge of rainwater toward a catchment on the side of the bridge, thereby enabling efficient improvement of rainwater collection for drainage toward transverse and longitudinal drainage. Background Technology

[0003] Generally, a bridge is a structure that allows people or vehicles to pass, and it consists of a deck, guardrails formed at the edges of the deck to prevent falls, and piers that support the deck. Additionally, drainage channels, which are drainage structures, are constructed along both edges of the deck as a means to drain rainwater or sewage that accumulates on the deck due to rain or snow.

[0005] In such drainage channels, a point drainage system is installed by perforating the bridge deck at regular intervals to install catch basins and connecting multiple catch basins to drainage pipes for drainage.

[0007] However, point drainage facilities have a structure in which the bridge deck is perforated and drainage pipes are embedded inside the deck, which causes a decrease in the durability of the bridge deck. Additionally, catch basins and drainage pipes become clogged by debris such as soil that flows in with rainwater, requiring frequent maintenance. This leads to increased maintenance costs and causes traffic congestion due to traffic blockages.

[0009] Due to these problems, a pre-drainage facility is installed and operated by arranging a linear trench along the shoulder guardrail without drilling the bridge deck, extending a transverse drain pipe connected to the trench to the outside of the shoulder guardrail, and installing a longitudinal drain pipe on the outside of the shoulder guardrail using a bracket.

[0011] As prior art disclosed in relation to the above-mentioned pre-drainage facility, Korean Registered Patent Publication No. 1625024 (May 23, 2016) discloses a bridge pre-drainage device that is configured to include grating collection holes that can be spaced apart on the deck of a bridge and have first inflow holes formed on one side through which water from the deck can flow in and discharge holes formed on the other side, a grating that connects the adjacent grating collection holes and has second inflow holes formed on one side through which water from the deck can flow in, a transverse drainage pipe connected to the discharge holes within a protective wall, and a longitudinal drainage pipe positioned outside the bridge and located below the discharge pipe through which the water drained through the grating collection holes, the transverse drainage pipe, and the discharge pipe flows in, thereby preventing damage to the pre-drainage device by workers, equipment, etc. during intermediate processes.

[0013] In addition, Registered Patent Publication No. 2017871 (August 28, 2019) describes a cantilever deck installed in a cantilevered form along the longitudinal direction via a support member on a coping portion of the upper part of a bridge pier, and having a hole in the retaining wall portion through which the inner and outer sides are connected; a water collection trench installed on the upper part of the cantilever deck to communicate with the road surface of the bridge; a transverse drainage pipe installed on the outer side of the water collection trench, with the discharge end side installed in a hole formed in the retaining wall portion of the cantilever deck and penetrating the retaining wall portion; a fixing bracket fixed to the cantilever deck; and a hanger member formed in a U-shape, with one side connected to the fixing bracket. A bridge drainage facility using a cantilever deck is disclosed, which is configured to include a longitudinal drain pipe that is mounted on the above-mentioned hanger member and guides and drains water drained from the above-mentioned transverse drain pipe along the longitudinal direction, thereby providing excellent constructability and facilitating maintenance.

[0015] However, the aforementioned conventional technologies only provide a method of simply guiding rainwater to flow by installing grating catches or catch trenches. Consequently, when rainwater flows in from multiple directions, it is not collected evenly, and there is a possibility that some of it will remain on the road surface or overflow to the sides. This results in significantly low rainwater collection efficiency, which causes hydroplaning due to poor drainage and a decrease in traffic safety. Prior art literature

[0017] KR Registered Patent Publication No. 10-1625024 (May 23, 2016) KR Registered Patent Publication No. 10-2017871 (August 28, 2019) The problem to be solved

[0018] The present invention aims to solve the above-mentioned problems by providing a bridge pre-drainage system having an improved rainwater collection structure that can increase rainwater collection efficiency while ensuring structural stability, by configuring the flow of rainwater on the bridge road surface to be guided and concentrated toward transverse drainage pipes spaced apart from each other. means of solving the problem

[0020] The bridge pre-drainage system having a rainwater collection improvement structure proposed by the present invention is a pre-drainage system installed on the road surface of a bridge to discharge rainwater from the road surface, comprising: a collection channel formed to block out the side of the road surface of the bridge deck to allow rainwater flowing along the road surface to flow in; a collection unit arranged at a distance corresponding to the side of the collection channel and installed embedded on a guard wall to collect rainwater flowing in from the collection channel in a lateral direction; a transverse drainage pipe having one end connected to the collection unit to induce drainage of rainwater and extending in a downward sloping direction toward the outside of the bridge; and a longitudinal drainage pipe installed on the guard wall of the bridge to extend in a front-rear longitudinal direction and drain rainwater discharged from the transverse drainage pipe; and comprising a rainwater collection means that closes the rainwater flow path of the collection channel between the collection channel and the collection unit to induce drainage toward the collection unit.

[0022] The above-mentioned water collection unit comprises an inner plate installed on the inner side at a distance from the inner wall surface to accommodate and support the rainwater collection means.

[0024] The above longitudinal drain pipe comprises a fixed bracket that is fixedly installed on a bridge guardrail and extends outward in a straight direction, and a variable connection means that connects the installation position of the longitudinal drain pipe to correspond to the above transverse drain pipe so as to be variable up and down based on the fixed bracket.

[0026] The above-described longitudinal drain pipe comprises a longitudinal drain fixing body formed with an upper and lower vertical opening and having a fixed end and a binding end, and a longitudinal drain main body having a fitting groove capable of being connected to the binding end of the longitudinal drain fixing body and forming a drainage path in the longitudinal direction.

[0028] In the above-mentioned longitudinal drainage pipe, a longitudinal drainage extension is formed by connecting and coupling between the above-mentioned longitudinal drainage fixing body and the above-mentioned longitudinal drainage main body to enable the vertical height of the drainage pipe to be extended.

[0030] The above rainwater collection means comprises a fixed plate that is vertically extended and fixedly installed within the collection section, and a collection plate that is formed to extend perpendicularly from the fixed plate toward the collection channel and configured to close the collection channel. Effects of the invention

[0032] According to the bridge pre-drainage system having a rainwater collection improvement structure of the present invention, rainwater flowing along the road surface is naturally concentrated and guided toward the collection section through a collection channel formed on the side of the bridge road surface, a collection section formed on the side of the guardrail at a certain distance from it, and a rainwater collection means disposed between them. This makes it possible to improve rainwater collection efficiency while solving existing problems of scattered rainwater flow or failure to enter the collection port. Furthermore, since the rainwater collection means controls the flow of rainwater to minimize unnecessary retained water, the drainage of the road surface is improved, and the effects of improving vehicle driving safety and braking performance are obtained. Brief explanation of the drawing

[0034] FIG. 1 is a cross-sectional view showing an embodiment according to the present invention. FIG. 2 is a plan view showing an embodiment according to the present invention. FIG. 3 is a cross-sectional view showing a water collection unit and a rainwater collection means in an embodiment according to the present invention. FIG. 4 is a side cross-sectional view showing a water collection unit and a rainwater collection means in an embodiment according to the present invention. FIG. 5 is a exploded view showing a longitudinal drain pipe in an embodiment according to the present invention. Specific details for implementing the invention

[0035] The present invention is characterized by a bridge pre-drainage system having an improved rainwater collection structure, which is installed on the road surface of a bridge to discharge rainwater from the road surface, comprising: a collection channel formed to be blocked out on the side of the road surface of the bridge deck to allow rainwater flowing along the road surface to flow in; a collection unit arranged at a distance corresponding to the side of the collection channel and installed embedded on a guard wall to collect rainwater flowing in from the collection channel in a lateral direction; a transverse drainage pipe having one end connected to the collection unit to induce drainage of rainwater and extending in a downward sloping direction toward the outside of the bridge; and a longitudinal drainage pipe installed on the guard wall of the bridge to extend in a front-rear longitudinal direction and drain rainwater discharged from the transverse drainage pipe; and a rainwater collection means that closes the rainwater flow path of the collection channel between the collection channel and the collection unit to induce drainage toward the collection unit.

[0037] Next, a preferred embodiment of a bridge drainage system having a rainwater collection improvement structure according to the present invention will be described in detail with reference to the drawings.

[0039] First, an embodiment of a bridge pre-drainage system having a rainwater collection improvement structure according to the present invention is a pre-drainage system installed on the road surface of a bridge (1) to discharge rainwater from the road surface, as shown in FIGS. 1 and 2, comprising a collection channel (10), a collection section (20), a transverse drainage pipe (30), and a longitudinal drainage pipe (40).

[0041] The above-mentioned water collection channel (10) is formed concavely by block-out construction on the side of the road surface of the bridge deck (3) of the bridge (1), and performs the function of flowing rainwater flowing along the road surface of the bridge (1) into the above-mentioned water collection channel (20).

[0043] As shown in FIGS. 1 and 2, the above-mentioned water collection channel (10) is installed at the boundary between the road surface of the bridge (1) and the guard wall (5), that is, at the location of the side drainage line.

[0045] The above-mentioned water collection unit (20) is installed embedded on the protective wall (5) of the bridge deck (3) and configured to collect and discharge rainwater flowing in from the water collection channel (10) in a lateral direction. That is, it performs the function of efficiently collecting water along the flow direction of the road surface and the drainage path on the side of the protective wall (5).

[0047] The above-mentioned water collection unit (20) is spaced apart in correspondence with the side of the water collection channel (10) and is configured to be installed as a buried channel structure on the protective wall (5) of the bridge (1).

[0049] The above water collection unit (20) is provided with a water collection body (21) with one side open, and a water collection grating (23) is configured with an inlet formed in front of the water collection body (21) that is open in correspondence with the water collection channel (10) to allow rainwater to flow in.

[0051] As shown in FIGS. 3 and 4, the above-mentioned water collection unit (20) is configured with an inner plate (25) that is installed on the inner side at a distance from the inner wall surface and accommodates and supports the rainwater collection means (50). That is, the inner plate (25) is configured to be installed at a distance equal to the thickness of the rainwater collection means (50) from the side wall of the water collection unit (20).

[0053] The above transverse drain pipe (30) performs the function of discharging rainwater flowing in from the above water collection unit (20) toward the outside of the bridge.

[0055] As shown in FIG. 1, the above transverse drain pipe (30) is connected at one end to the water collection section (20) to induce drainage of rainwater, and is formed to extend in a downward slope (approximately 3 to 7°) toward the outside of the bridge (1). That is, it is configured so that rainwater can naturally flow toward the longitudinal drain pipe (40) by gravity from the downward slope structure of the transverse drain pipe (30), so that a continuous drainage flow is maintained without any pressure loss or stagnation even during rainfall.

[0057] The above transverse drain pipe (30) is formed with a circular or elliptical cross-sectional shape and is configured to have a variable length extending in the front-rear longitudinal direction.

[0059] The above-mentioned longitudinal drain pipe (40) forms a main discharge passage that transports rainwater discharged from the above-mentioned transverse drain pipe (30) to an outlet on the outside of the bridge.

[0061] The above-mentioned longitudinal drain pipe (40) is installed on the protective wall (5) of the bridge (1) and extended in the front-rear longitudinal direction (length direction of the bridge). That is, the above-mentioned longitudinal drain pipe (40) is extended along the length direction of the bridge and communicates with a plurality of the above-mentioned transverse drain pipes (30) installed in each section of the bridge deck (3) to complete the overall drainage flow.

[0063] The above-mentioned longitudinal drain pipe (40) is configured with a fixed bracket (47) that is fixedly installed on the outer wall of a bridge (1) or a protective wall (5) and extends outward in a straight line direction, and a variable connection means (49) that connects the installation position of the longitudinal drain pipe (40) to the above-mentioned transverse drain pipe (30) so as to be variable up and down based on the fixed bracket (47).

[0065] As shown in FIG. 5, the above-mentioned longitudinal drain pipe (40) is an assembled structure comprising a longitudinal drain fixing body (41) and a longitudinal drain body (43).

[0067] The above-mentioned longitudinal drainage fixed body (41) creates a path for rainwater to initially flow in through the above-mentioned transverse drainage pipe (30) from the upper side of the pipe and is formed to be open vertically.

[0069] The above-mentioned longitudinal drainage fixing body (41) is configured to have a fixing end (41a) provided at the top for binding and coupling on the variable connection means (49), and a binding end (41b) formed to protrude in the shape of a projection at the bottom.

[0071] The above-mentioned longitudinal drainage body (43) is a main body part that forms the main drainage path of the above-mentioned longitudinal drainage pipe (40), and is provided with a fitting groove (43a) that can be connected to the binding end (41b) of the above-mentioned longitudinal drainage fixing body (41), and forms a drainage path in the longitudinal direction.

[0073] The above-mentioned longitudinal drain pipe (40) is configured with a longitudinal drain extension member (45) that is additionally connected and coupled between the above-mentioned longitudinal drain fixing member (41) and the above-mentioned longitudinal drain main body (43) to enable the vertical height of the drainage pipe to be extended.

[0075] The above-mentioned longitudinal drainage extension (45) is formed as a tube-shaped extension pipe and is provided with a coupling groove (45a) and a binding projection (45b) at the upper and lower ends, respectively, to form a snap-fit ​​coupling structure between adjacent upper and lower components. That is, the above-mentioned longitudinal drainage extension (45) is snap-fitted between the coupling groove (45a) and the binding projection (45b) to continuously connect multiple units, and is flexibly selected and applied according to conditions such as the step difference of the bridge structure and the site drainage height.

[0077] The above rainwater collection means (50) is configured to prevent rainwater on the road surface of the bridge (1) from flowing out indiscriminately through the collection channel (10) and to concentrate and guide it toward the collection section (20). That is, the above rainwater collection means (50) performs the function of effectively diverting the inflow of rainwater on the road surface of the bridge (1) toward the collection section (20) and guiding it for drainage.

[0079] The above rainwater collection means (50) is installed between the above water collection channel (10) and the above water collection section (20), and is configured to close the rainwater flow path of the above water collection channel (10).

[0081] As shown in FIGS. 3 and 4, the above rainwater collection means (50) comprises a fixed plate (51) fixedly installed between the inner plate (25) and the inner side of the water collection section (20), and a collection plate (53) formed extending perpendicularly toward the water collection channel (10) from the lower side of the fixed plate (51).

[0083] The above-mentioned fixed plate (51) is fixedly installed inside the water collection section (20) by the inner plate (25) and forms a plate body extending in a vertical direction. That is, the above-mentioned fixed plate (51) contacts and fixes the above-mentioned collection plate (53) on the water collection section (20).

[0085] The above collection plate (53) is formed by extending horizontally from the lower end of the above fixing plate (51) toward the above water collection channel (10).

[0087] The above collection plate (53) can close the above water collection channel (10) to block the flow of rainwater on the road surface and provides a guiding surface so that rainwater is concentrated and flows toward the collection section (20). That is, the front end of the above collection plate (53) is extended to close the flow path of the above water collection channel (10), and guides rainwater to naturally flow toward the collection section (20) along the guiding surface of the above collection plate (53).

[0089] In other words, according to the bridge pre-drainage system having a rainwater collection improvement structure configured as described above, rainwater flowing along the road surface is naturally concentrated and guided toward the collection section through a collection channel formed on the side of the bridge road surface, a collection section formed on the side of the guardrail at a certain distance from it, and a rainwater collection means disposed between them. This makes it possible to improve rainwater collection efficiency while resolving existing problems of scattered rainwater flow or failure to enter the collection port. Furthermore, since the rainwater collection means controls the flow of rainwater to minimize unnecessary water retention, it is possible to improve the drainage of the road surface and enhance vehicle driving safety and braking performance.

[0091] Although a preferred embodiment of a bridge drainage system having a rainwater collection improvement structure according to the present invention has been described above, the present invention is not limited thereto and can be implemented with various modifications within the scope of the claims, the specification of the invention, and the attached drawings, and such modifications also fall within the scope of the present invention. Explanation of the symbols

[0093] 1 : Bridge 3 : Deck 5 : Barrier 10 : Catchment 20 : Catchment section 21 : Catchment body 23 : Drainage grating 25 : Inner plate 30 : Transverse drain pipe 40 : Longitudinal drain pipe 41 : Longitudinal drain fixed body 41a : Fixed end 41b : Binding section 43 : Main body of the drainage pipe 43a : Insertion groove 45 : Longitudinal drainage extension 45a : Connecting groove 45b : Binding projection 47 : Fixed bracket 49 : Variable connection means 50 : Rainwater collection means 51 : Fixing plate 53 : Collector's Edition

Claims

Claim 1 A pre-drainage system installed on the road surface of a bridge for discharging rainwater from the road surface comprises: a collection channel formed to block out the side of the road surface of the bridge deck portion to allow rainwater flowing along the road surface to flow in; a collection section arranged at a distance corresponding to the side of the collection channel and installed embedded on a guardrail to collect rainwater flowing in from the collection channel in a lateral direction; a transverse drainage pipe having one end connected to the collection section to induce drainage of rainwater and extending in a downward sloping direction toward the outer side of the bridge; and a longitudinal drainage pipe installed on the guardrail of the bridge to extend in a front-rear longitudinal direction and drain rainwater discharged from the transverse drainage pipe; and a rainwater collection means formed to close the rainwater flow path of the collection channel between the collection channel and the collection section to induce drainage toward the collection section, wherein the rainwater collection means comprises a fixed plate vertically extended to be fixedly installed within the collection section, and a collection plate formed to extend perpendicularly from the fixed plate toward the collection channel to enable the closure of the collection channel. A bridge drainage system having a structure for improving rainwater collection. Claim 2 A bridge pre-drainage system having a rainwater collection improvement structure according to claim 1, wherein the water collection section comprises an inner plate installed on the inner side spaced apart from the inner wall surface and accommodating and supporting the rainwater collection means. Claim 3 A bridge pre-drainage system having a rainwater collection improvement structure according to claim 1, wherein the longitudinal drain pipe comprises a fixed bracket fixedly installed on a bridge guardrail and extended outward in a straight direction, and a variable connection means that connects the installation position of the longitudinal drain pipe to the transverse drain pipe so as to be variable up and down based on the fixed bracket. Claim 4 A bridge pre-drainage system having a rainwater collection improvement structure according to claim 1, wherein the longitudinal drain pipe comprises a longitudinal drainage fixing body formed vertically open and having a fixed end and a binding end, and a longitudinal drainage main body having a fitting groove that can be connected to the binding end of the longitudinal drainage fixing body and forming a drainage path in the longitudinal direction. Claim 5 A bridge drainage system having a rainwater collection improvement structure according to claim 4, wherein the longitudinal drainage pipe comprises a longitudinal drainage extension member configured to extend the vertical height of the drainage pipe by connecting and coupling between the longitudinal drainage fixing member and the longitudinal drainage main body. Claim 6 delete

Images