Sewage collection device for line cutting demolition of sea-crossing bridge

Abstract

This invention belongs to the technical field of bridge equipment and provides a sewage collection device for the demolition of cross-sea bridges via wire cutting. The invention includes a vertical beam with a wire cutting groove, a cooling water spray pipe, and a collection structure. The sewage collection device is located below the wire cutting groove. One end of the collection structure with the cooling water spray pipe is the inlet, and the other end is the outlet with a sewage outlet. A top-opening collection channel is provided between the inlet and outlet ends of the collection structure. The inlet end is higher than the outlet end, and the collection channel spirals downwards around the vertical beam. This invention diverts and collects sewage generated during the wire cutting of the bridge's vertical beam, reducing environmental pollution caused by cooling water during the wire cutting process; it also simplifies the installation and removal of the sewage collection device, minimizing its impact on the construction process and avoiding delays in the demolition of the vertical beam and construction progress.

Description

Technical Field

[0001] This invention relates to the field of bridge equipment technology and provides a sewage collection device for the wire cutting and demolition of cross-sea bridges. Background Technology

[0002] Bridges are an important part of roads. With the rapid growth of my country's economy, the road transportation industry has also developed rapidly. Some bridges built two or three decades ago can no longer meet transportation needs, thus requiring the construction of new bridges to replace the old ones. Some old bridges cannot be demolished by blasting, such as those located in nature reserves, scenic areas, or drinking water areas. Demolition by blasting would easily damage the environment and water sources of the area. Therefore, other methods must be chosen for demolition, such as wire cutting. This method cuts the old bridge into several small units, which are then lifted away by a hoisting device. Water is used as a coolant during wire cutting. If the wastewater generated after cooling falls directly from the bridge deck to the area below, it can still easily pollute the environment or water bodies. Therefore, the wastewater discharge problem must be properly addressed during the cutting process. Existing technology CN212714600U provides a dismantling structure for the main beam of a long-span tied arch bridge over water, including a main beam load-bearing system and a main beam lifting system. The main beam lifting system is located between the main beam and the auxiliary bridge. The main beam load-bearing system includes a set of steel pipe supports, which are arranged symmetrically on both sides of the main beam to divide it into two spans. Support seats are fixed on the top of the steel pipe supports. The main beam lifting system includes a gantry crane and a gantry crane track foundation. The gantry crane track foundation is located between the main beam and the auxiliary bridge. The gantry crane is slidably connected to the track foundation so that it can move along the central axis of the main beam. The track foundation includes steel pipe piles, which are fixedly connected to the adjacent steel pipe supports in a Z-shape using seamless steel pipes. Threaded rods are inserted through the auxiliary bridge piers and the steel pipe piles. The above technical solution addresses the wastewater collection problem during the wire cutting process of horizontal beams, but it cannot be applied to wastewater collection during the wire cutting process of vertical beams. The inventors believe there is significant room for improvement. Summary of the Invention

[0003] The purpose of this invention is to divert and collect wastewater generated during the wire cutting process of vertical beams in bridges, thereby reducing the environmental pollution caused by cooling water during the wire cutting process. Secondly, it expands the applicability of the wastewater collection device to be suitable for vertical beams of different shapes; it simplifies the installation and dismantling process of the wastewater collection device, reduces its impact on the construction process, and avoids affecting the dismantling of vertical beams and delaying the construction progress.

[0004] A wastewater collection device for the demolition of a cross-sea bridge via wire cutting includes a vertical beam with a wire cutting groove, a cooling water spray pipe, and a collection structure. The wastewater collection device is located below the wire cutting groove. One end of the collection structure with the cooling water spray pipe is the inlet, and the other end is the outlet with a wastewater drain. A top-opening collection channel is provided between the inlet and outlet ends of the collection structure. The inlet end is higher than the outlet end, and the collection channel spirals downwards around the vertical beam. In existing wire cutting processes, the diamond cutting wire cuts laterally around the vertical beam. The cooling water spray pipe sprays cooling water at the initial contact point between the diamond cutting wire and the vertical beam. During the diamond cutting cycle, the cooling water adheres to the wire cutting groove of the vertical beam, cooling it down. Before the diamond cutting wire leaves the wire cutting groove, most of the cooling water flows out as wastewater from the wire cutting process. Therefore, the wastewater from wire cutting is mainly generated on the side of the vertical beam where the diamond cutting wire contacts the vertical beam, i.e., the side of the vertical beam facing away from the wire cutting machine. The sewage collection device for the wire cutting demolition of the cross-sea bridge is located below the wire cutting groove. The sewage overflowing from the wire cutting groove flows into the sewage collection device by gravity. The starting point of the collection water channel of the collection structure is below the cooling water spray pipe, which reduces the volume of the sewage collection device and avoids the location of the subsequent vertical beam collapse. Since the cooling water is prone to mixing with the insoluble substances such as concrete generated by wire cutting during the cooling process, the collection water channel spirals downward around the vertical beam, which helps the cooling water carry the insoluble substances out and avoids the debris generated by wire cutting from blocking the water channel.

[0005] Preferably, the sewage collection device for the wire-cutting demolition of cross-sea bridges also includes a fixing structure. This fixing structure is laterally wrapped around the vertical beam and includes a flexible frame. The flexible frame comprises at least two elastic bodies, and its inner surface is fitted to the vertical beam. The flexible frame is located below the collection structure. The fixing structure uses a flexible mechanism to secure the vertical beam, accommodating vertical beams of different shapes and sizes. Being located below the collection structure avoids damage to the fixing structure from solid particles generated during wire cutting. The flexible frame reduces the number of fixing points in the collection channel, naturally forming a uniformly sloped, downward-sloping collection channel, reducing the assembly precision of the sewage collection device and shortening installation time.

[0006] Preferably, the fixing structure further includes at least two first fixing supports. One end of each first fixing support is a first connecting end connected to the flexible frame, and the other end is a first fixing end connected to the vertical beam. The elastic body of the flexible frame is connected end-to-end by the first fixing supports. Using the first fixing supports to fix the flexible frame ensures that the slope of the flexible frame changes uniformly under gravity; the flexible frame absorbs the impact of heavy solid particles generated by wire cutting, preventing the impact of heavy solid particles on the fixing structure.

[0007] Preferably, the fixing structure also includes at least two second fixing supports. One end of each second fixing support is a second connecting end connected to the collection structure, and the other end is a second fixing end connected to the flexible frame. The upper part of the second fixing support is away from the vertical beam, and the lower part is close to the vertical beam. Due to the influence of the construction site and construction height of the cross-sea bridge, the external environment has strong winds. The second fixing supports are inclined centripetally from top to bottom, which centripetally transfers the gravity generated by the sewage during the wire cutting process and the load on the fixing structure from the external environment during construction to the vertical beam, enabling the fixing structure to bear a large load.

[0008] Preferably, the upper part of the first fixed bracket is far from the vertical beam, and the lower part is close to the vertical beam. The contact surface between the first fixed end and the vertical beam is provided with anti-slip transverse texture. The first fixed bracket is inclined concentrically from top to bottom, which transfers the gravity generated by the sewage during wire cutting, the external environment during construction, and the gravity of the sewage collection device itself to the vertical beam, enabling the sewage collection device to bear a larger load. At the same time, it tightens the vertical beam, reducing or even eliminating the use of connectors, and allows the sewage collection device to be quickly and tightly fixed around the surface of the vertical beam, reducing the number of fixing bolts required and shortening the installation time. The anti-slip transverse texture on the contact surface between the first fixed end and the vertical beam prevents the first fixed bracket from slipping due to a small amount of sewage leaking along the joint between the vertical beam and the sewage collection device.

[0009] Preferably, the side of the collection channel away from the vertical beam is equipped with an inclined side plate, while the side of the collection channel near the vertical beam is open. The upper part of the inclined side plate is away from the vertical beam, and the lower part is close to the vertical beam. The inclined side plate increases the upper opening of the collection channel, which is beneficial for collecting sewage with a larger splash range due to high-speed wire cutting. At the same time, the inclined side plate makes the sewage collection device into an inverted cone shape. When the device is affected by environmental loads, the load is centripetal and transmitted to the vertical beam, enabling the sewage collection device to withstand larger loads.

[0010] Preferably, the first fixed end of the first fixed bracket is provided with a connector, which fixes the first fixed end and the vertical beam. Using a connector to fix the first fixed end and the vertical beam ensures the reliability of the connection between the sewage collection device and the vertical beam.

[0011] Preferably, the second fixing end of the second fixing bracket is located to the left and / or right of the first connecting end of the first fixing bracket.

[0012] Preferably, the slope of the sewage outlet near the collection channel is greater than the slope of the outlet further away from the collection channel. The steep slope of the inlet near the sewage outlet accelerates the flow of sewage into the tank; the gentle slope of the inlet further away from the sewage outlet reduces the flow velocity and prevents sewage from impacting the filtration system.

[0013] Preferably, the arc α of the collection structure surrounding the vertical beam is 90 ≤ α ≤ 270°. Since the vertical beam needs to tilt towards the wire cutting machine after the wire cutting is completed, the above-mentioned arc setting preserves the space required for the vertical beam to tilt; at the same time, it covers most of the overflow points of wastewater during the wire cutting process, which can effectively collect the wastewater generated during the wire cutting process and avoid environmental pollution.

[0014] This invention solves the problem of diverting and collecting wastewater generated during the wire cutting process of bridge vertical beams, reducing environmental pollution caused by cooling water during wire cutting; it expands the applicability of the wastewater collection device to vertical beams of different shapes; it simplifies the installation and dismantling process of the wastewater collection device, reduces its impact on the construction process, avoids affecting the dismantling of vertical beams and delaying the construction progress, and has the following beneficial effects: it centripetally transfers the gravity generated by the wastewater during wire cutting, the external environment during construction, and the gravity of the wastewater collection device itself to the vertical beam, enabling the wastewater collection device to bear a larger load; it tightly grips the vertical beam, allowing the wastewater collection device to be quickly and firmly fixed around the surface of the vertical beam, reducing the number of fixing bolts required and shortening the installation time; and it facilitates the discharge of insoluble substances carried by the cooling water, preventing debris generated during wire cutting from clogging the collection channels. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 A structural diagram illustrating the process of dismantling a sewage collection device for a cross-sea bridge using wire cutting.

[0017] Figure 2 A schematic diagram of the structure at the end of the wire-cut vertical beam;

[0018] Figure 3 A top view of the work being carried out during the wire cutting and dismantling of the sewage collection device for the cross-sea bridge;

[0019] Figure 4 A schematic diagram of the structure for wire cutting and dismantling of a sewage collection device for a cross-sea bridge.

[0020] Figure 5 A top view of the removal of the sewage collection system for a cross-sea bridge via wire cutting.

[0021] Figure 6 This is a schematic diagram of the structure of the first fixed support;

[0022] Figure 7This is a cross-sectional view of the first fixed bracket.

[0023] Legend: 1 Vertical beam; 2 Collection structure; 21 Water inlet; 22 Collection channel; 23 Sewage outlet; 23a Front end; 23b Rear end; 3 Cooling water spray pipe; 4 Wire cutting groove; 5 Fixing structure; 51 First fixing bracket; 52 Second fixing bracket; 52a Second connecting end; 52b Second fixing end; 53 Elastomer; 51a First connecting end; 51b Connector; 51c Horizontal texture; 51d First fixing end. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Combination Figure 1 and Figure 2 As shown, a wastewater collection device for the demolition of a cross-sea bridge via wire cutting includes a vertical beam 1 with a wire cutting groove 4, a cooling water spray pipe 3, and a collection structure 2. The wastewater collection device is located below the wire cutting groove 4. One end of the collection structure 2 with the cooling water spray pipe 3 is the water inlet 21, and the other end of the collection structure 2 is the drainage end with a wastewater outlet 23. Figure 3As shown, a collection channel 22 with an open top is provided between the water inlet end 21 and the drain end of the collection structure 2. The height of the water inlet end 21 is higher than that of the drain end. The collection channel 22 of the collection structure 2 spirals downward around the vertical beam 1. In the existing wire cutting process, the diamond cutting wire cuts horizontally around the vertical beam 1. Cooling water spray pipe 3 sprays cooling water at the contact point between the diamond cutting wire and the vertical beam 1. During the diamond cutting cycle, the cooling water adheres to the wire cutting groove 4 of the vertical beam 1 to cool it down. Before the diamond cutting wire leaves the wire cutting groove 4, most of the cooling water will flow out as wastewater from the wire cutting. Therefore, the wastewater from the wire cutting is mainly generated on the side where the diamond cutting wire contacts the vertical beam 1, that is, the side of the vertical beam 1 facing away from the wire cutting machine. The wastewater collection device for the wire cutting demolition of the cross-sea bridge is located below the wire cutting groove 4. Wastewater overflowing from the wire cutting groove 4 flows into the wastewater collection device by gravity. The starting point of the collection channel 22 of the collection structure 2 is located below the cooling water spray pipe 3, reducing the volume of the wastewater collection device and avoiding the location where the vertical beam 1 will tilt. Since the cooling water easily mixes with insoluble substances such as concrete generated during the cooling process, the collection channel 22 spirals downward around the vertical beam 1, which helps the cooling water carry away the insoluble substances and avoids the blockage of the channel by debris generated during the wire cutting. The arc α of the collection structure 2 around the vertical beam 1 is 90≤α≤270°. Since the vertical beam 1 needs to tilt towards the wire cutting machine after the wire cutting is completed, the above arc setting covers most of the overflow position of the wastewater during the wire cutting process and reserves the space required for the tilting of the vertical beam 1. At the same time, it can effectively collect the wastewater generated during the wire cutting process and avoid environmental pollution.

[0026] like Figure 1 and Figure 2 As shown, the sewage collection device for the wire-cutting demolition of the cross-sea bridge also includes a fixing structure 5. The fixing structure 5 is horizontally fixed around the vertical beam 1. The fixing structure 5 includes a flexible frame, which includes at least two elastic bodies 53. The inner surface of the flexible frame is in contact with the vertical beam 1, and the flexible frame is located below the collection structure 2. The fixing structure 5 uses a flexible mechanism to fix the vertical beam 1, which can adapt to vertical beams 1 of different shapes and sizes. The fixing structure 5 is located below the collection structure 2, which avoids damage to the fixing structure 5 caused by solid particles generated by wire cutting. The flexible frame can reduce the fixing points of the collection channel 22, naturally forming a uniformly sloped spiraling downward collection channel 22, reducing the assembly precision of the sewage collection device and reducing the installation time.

[0027] like Figure 4As shown, the fixing structure 5 also includes at least two first fixing brackets 51. One end of the first fixing bracket 51 is a first connecting end 51a connected to the flexible frame, and the other end of the first fixing bracket 51 is a first fixing end 51d connected to the vertical beam 1. The elastic body 53 of the flexible frame is connected end to end by the first fixing brackets 51. The first fixing brackets 51 are used to fix the flexible frame to ensure that the slope of the flexible frame changes uniformly under the action of gravity; the flexible frame absorbs the impact of large solid particles generated by wire cutting, avoiding the impact of large solid particles on the fixing structure 5.

[0028] like Figure 4 As shown, the fixing structure 5 also includes at least two second fixing brackets 52. One end of the second fixing bracket 52 is a second connecting end 52a connected to the collecting structure 2, and the other end of the second fixing bracket 52 is a second fixing end 52b connected to the flexible frame. The upper part of the second fixing bracket 52 is away from the vertical beam 1, and the lower part of the second fixing bracket 52 is close to the vertical beam 1. The second fixing end 52b of the second fixing bracket 52 is located to the left and / or right of the first connecting end 51a of the first fixing bracket 51.

[0029] Due to the influence of the construction site and height of the cross-sea bridge, the external environment is characterized by strong winds. The second fixed support 52 is inclined centripetally from top to bottom, which centripetally transfers the gravity generated by the sewage during the wire cutting process and the load on the fixed structure 5 from the external environment during construction to the vertical beam 1, enabling the fixed structure 5 to bear a large load.

[0030] Combination Figure 4 and Figure 6 As shown, the upper part of the first fixed bracket 51 is away from the vertical beam 1, and the lower part of the first fixed bracket 51 is close to the vertical beam 1. The contact surface between the first fixed end 51d and the vertical beam 1 is provided with anti-slip transverse texture 51c. The first fixed bracket 51 is inclined concentrically from top to bottom, which concentrically transmits the gravity generated by the sewage during the wire cutting process, the external environment during construction, and the gravity of the sewage collection device itself to the vertical beam 1, so that the sewage collection device can bear a large load. At the same time, it hugs the vertical beam 1, which can quickly fix the sewage collection device around the surface of the vertical beam 1, reducing the number of fixing bolts required and shortening the installation time. The contact surface between the first fixed end 51d and the vertical beam 1 is provided with anti-slip transverse texture 51c to prevent the first fixed bracket 51 from slipping due to a small amount of sewage leaking along the joint between the vertical beam 1 and the sewage collection device.

[0031] The horizontal texture 51c can adopt a serrated, wavy, or grid-like anti-slip structure, with a texture depth preferably of 0.5–2 mm, to prevent the bracket from slipping by increasing the friction coefficient of the contact surface. As a preferred embodiment, the angle between the first fixed bracket and the vertical beam is controlled within the range of 15–30 degrees, ensuring both fixing strength and ease of installation and adjustment. The anti-slip texture can be achieved through stamping, laser engraving, or inlaying anti-slip strips.

[0032] This technical solution optimizes the spatial layout and contact surface structure of the first fixed bracket. Compared with conventional vertical fixing methods, this design achieves higher structural stability with the same amount of material, making it particularly suitable for special working conditions such as cross-sea bridges subject to continuous wind loads. Simultaneously, the anti-slip texture eliminates the need for additional fasteners, simplifying the disassembly and maintenance process; it also effectively solves the problem of collection device displacement caused by vibration during wire cutting operations. The inclined bracket forms a triangular stable structure, which, combined with the anti-slip texture, significantly improves vibration resistance.

[0033] like Figure 2 As shown, the collecting channel 22 has an inclined side plate on the side away from the vertical beam 1, and the collecting channel 22 is open on the side closer to the vertical beam 1. The upper part of the inclined side plate is away from the vertical beam 1, and the lower part of the inclined side plate is close to the vertical beam 1. The inclined side plate can increase the upper opening of the collecting channel 22, which is beneficial for collecting sewage with a larger splash range due to high-speed wire cutting. At the same time, the inclined side plate makes the sewage collection device as a whole inverted cone shape. When the device is affected by environmental loads, the load is centripetal and transmitted to the vertical beam 1, enabling the sewage collection device to bear a larger load.

[0034] Combination Figure 6 and Figure 7 As shown, the first fixed end 51d of the first fixed bracket 51 is provided with a connector 51b, which fixes the first fixed end 51d and the vertical beam 1. The connector 51b is used to fix the first fixed end 51d and the vertical beam 1 to ensure the reliability of the connection between the sewage collection device and the vertical beam 1.

[0035] like Figure 4 and Figure 5 As shown, the slope of the front end 23a of the sewage outlet 23 near the collection channel 22 is greater than the slope of the rear end 23b away from the collection channel 22. The steep slope of the inlet at the front end, which is close to the sewage outlet 23, accelerates the flow of sewage into the tank; the gentle slope of the inlet at the rear end, which is away from the sewage outlet 23, reduces the flow velocity and prevents sewage from impacting the filtration system.

[0036] This invention solves the problem of diverting and collecting wastewater generated during the wire cutting process of vertical beams in bridges, reducing the environmental pollution caused by cooling water during wire cutting; it expands the applicability of the wastewater collection device to vertical beams of different shapes; it simplifies the installation and dismantling process of the wastewater collection device, reduces the impact of the wastewater collection device on the construction process, avoids affecting the dismantling of vertical beams and delaying the construction progress, and has the following beneficial effects: it centripetally transfers the gravity generated by the wastewater during wire cutting, the external environment during construction, and the gravity of the wastewater collection device itself to the vertical beam 1, enabling the wastewater collection device to bear a larger load; it tightly grips the vertical beam 1, allowing the wastewater collection device to be quickly and firmly fixed around the surface of the vertical beam 1, reducing the number of fixing bolts required and shortening the installation time; it facilitates the discharge of insoluble substances carried by the cooling water, preventing debris generated during wire cutting from clogging the collection channel 22.

[0037] The above embodiments and / or implementation methods are merely illustrative of preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art may make some modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but these should still be regarded as the technology or embodiments that are substantially the same as the present invention.

Claims

1. A sewage collection device for the wire cutting demolition of a cross-sea bridge, comprising a vertical beam (1) with a wire cutting groove (4), a cooling water spray pipe (3), and a collection structure (2), characterized in that, The sewage collection device for the cross-sea bridge wire cutting demolition is located below the wire cutting groove (4). The collection structure (2) has a cooling water spray pipe (3) at one end as the water inlet (21) and a sewage outlet (23) at the other end as the drainage end. A collection water channel (22) with an open top is provided between the water inlet (21) and the drainage end of the collection structure (2). The height of the water inlet (21) is higher than that of the drainage end. The collection water channel (22) of the collection structure (2) spirals downward around the vertical beam (1). The cross-sea bridge wire cutting demolition sewage collection device also includes a fixing structure (5), which is horizontally fixed around the vertical beam (1). The fixing structure (5) includes a flexible frame and at least two first fixing brackets (51). One end of the first fixing bracket (51) is a first connecting end (51a), which is connected to the flexible frame. The other end of the first fixing bracket (51) is a first fixing end (51d), which is connected to the vertical beam (1). The elastic body (53) of the flexible frame is connected end to end by the first fixing bracket (51). The fixing structure (5) further includes at least two second fixing brackets (52). One end of the second fixing bracket (52) is a second connecting end (52a), which is connected to the collecting structure (2). The other end of the second fixing bracket (52) is a second fixing end (52b), which is connected to the flexible frame. The upper part of the second fixing bracket (52) is away from the vertical beam (1), and the lower part of the second fixing bracket (52) is close to the vertical beam (1).

2. The cross-sea bridge line cutting demolition sewage collection device according to claim 1, characterized in that, The flexible frame includes at least two elastic bodies (53), the inner surface of the flexible frame is attached to the vertical beam (1), and the flexible frame is located below the collection structure (2).

3. The cross-sea bridge line cutting demolition sewage collection device according to claim 1, characterized in that, The upper part of the first fixed bracket (51) is far away from the vertical beam (1), and the lower part of the first fixed bracket (51) is close to the vertical beam (1). The contact surface between the first fixed end (51d) and the vertical beam (1) is provided with anti-slip transverse texture (51c).

4. The cross-sea bridge line cutting demolition sewage collection device according to claim 3, characterized in that, The first fixed end (51d) of the first fixed bracket (51) is provided with a connector (51b), which fixes the first fixed end and the vertical beam (1).

5. The cross-sea bridge line cutting demolition sewage collection device according to claim 3, characterized in that, The second fixing end (52b) of the second fixing bracket (52) is located to the left and / or right of the first connecting end (51a) of the first fixing bracket (51).

6. The cross-sea bridge line cutting demolition sewage collection device according to claim 1, characterized in that, The collecting water channel (22) has an inclined side plate on the side away from the vertical beam (1), and the collecting water channel (22) is open on the side close to the vertical beam (1). The upper part of the inclined side plate is away from the vertical beam (1), and the lower part of the inclined side plate is close to the vertical beam (1).

7. The cross-sea bridge line cutting demolition sewage collection device according to claim 1, characterized in that, The slope of the sewage outlet (23) near the front end (23a) of the collection channel (22) is greater than the slope of the rear end (23b) away from the collection channel (22).

Images