Anti-clogging box culvert structure

Abstract

The application relates to the technical field of box culverts, in particular to an anti-silt box culvert structure. The anti-silt box culvert structure comprises a box body, a culvert is arranged in the box body, a water discharge groove is arranged at the bottom of the culvert, a protective plate is arranged in the water discharge groove, a plurality of rows of supporting rods are arranged at the bottom of the water discharge groove, each row of supporting rods is arranged along the width direction of the water discharge groove and at least three supporting rods are arranged, a movable cylinder is arranged at the bottom of the protective plate, the movable cylinder is sleeved on the supporting rods, supporting springs are arranged between the movable cylinder and the supporting rods, the elastic coefficient of the supporting springs located on the two sides is smaller than that of the supporting springs located in the middle, and sewage storage grooves are arranged at the two sides of the water discharge groove and are communicated with the outside. When flood is discharged, sewage flows normally in the culvert, when sludge in the sewage deposits in the culvert, the sludge falls on the protective plate, the protective plate deforms and forms an upwardly-convex arch structure. At this time, the sludge on the protective plate slides to the two sides along the arch structure and falls into the sewage storage grooves.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of box culverts, in particular to a silt-preventing box culvert structure. BACKGROUND

[0002] A box culvert refers to a culvert constructed by a reinforced concrete box-shaped pipe section, which is composed of one or more square or rectangular sections and is mainly used for flood discharge and waterlogging drainage.

[0003] The related art can refer to the Chinese patent with the announcement number CN210140780U, which discloses a silt-preventing ecological water-permeable box culvert, comprising tenons, Y-shaped drainage pipes, grooves, a box body and a culvert pipe. The box body is provided with a through hole in the middle of the lower side to form the culvert pipe. The top of the box body is provided with protruding tenons, and the grooves are concave between the adjacent two tenons. The Y-shaped drainage pipes are arranged in at least part of the tenons, and the lower ends of the Y-shaped drainage pipes are connected to the culvert pipe. The upper sections of the Y-shaped drainage pipes are bifurcated and respectively opened on the opposite two outer walls of the tenons.

[0004] When the box culvert discharges sewage, a large amount of solid suspended matter and impurities are usually contained in the sewage. Part of the solid impurities is discharged together with the sewage, and part of the solid impurities is accumulated at the bottom of the box culvert. Long-term accumulation will cause the box culvert to be silted, thereby reducing the drainage effect of the box culvert. SUMMARY

[0005] In order to ensure the drainage effect of the box culvert, the application provides a silt-preventing box culvert structure.

[0006] The silt-preventing box culvert structure provided by the application adopts the following technical scheme:

[0007] The silt-preventing box culvert structure comprises a box body, at least one culvert is arranged in the box body, a drainage groove is arranged at the bottom of the culvert, an elastic protection plate for shielding the top of the drainage groove is movably connected in the drainage groove, a plurality of rows of support rods are arranged at the bottom of the drainage groove, each row of support rods is arranged along the width direction of the drainage groove and at least three support rods are arranged in each row, an activity barrel corresponding to each support rod is arranged at the bottom of the protection plate, the activity barrel is sleeved on the support rod, a support spring is arranged between the activity barrel and the support rod, the elastic coefficient of the support springs located on the two sides is smaller than that of the support spring located in the middle, and a sewage storage tank is arranged at the two sides of the drainage groove and is in communication with the outside.

[0008] By adopting the technical scheme, when flood is discharged, sewage flows normally in the culvert, and when sludge in the sewage deposits in the culvert, the sludge falls on the protection plate, the protection plate is stressed to descend and exert downward pressure on the support springs below, and because the elastic coefficients of the support springs at different positions are different, the deformation amounts of the support springs are also different when the same pressure is exerted, and the deformation amounts of the support springs on the two sides are greater, which leads to a longer descending distance of the protection plate on the two sides than that of the protection plate at the middle position. That is, the protection plate deforms to form an arched structure that bulges upward. At this time, the sludge on the protection plate slides along the arched structure to the two sides, the pressure on the two sides of the protection plate becomes greater, the protection plate descends more, the two sides of the protection plate are opposite to the sludge storage tank, and the sludge slides into the sludge storage tank. The amount of sludge on the protection plate is reduced, and the protection plate is reset, thereby reducing the accumulation of sludge on the surface of the protection plate and ensuring the drainage effect of the culvert itself.

[0009] Preferably, a wall scraping frame is vertically and slidingly connected in the sludge storage tank, and the wall scraping frame is fixedly connected with the movable cylinders on the two sides and abuts against the inner wall of the sludge storage tank.

[0010] By adopting the technical scheme, during the descending process of the protection plate, the sludge slides into the sludge storage tank, and the wall scraping frame follows the descending to scrape the inner wall of the sludge storage tank, thereby removing the sludge on the inner wall of the sludge storage tank and preventing adhesion.

[0011] Preferably, a sludge cleaning block is detachably connected to the end of the sludge storage tank, a sludge cleaning rod is rotationally connected to the center of the sludge cleaning block, and a spiral sludge cleaning groove is arranged on the outer wall of the sludge cleaning rod.

[0012] By adopting the technical scheme, when the amount of sludge in the sludge storage tank reaches a certain amount, an operator can install the sludge cleaning block at the end of the sludge storage tank, and then rotate the sludge cleaning rod. The sludge cleaning groove on the outer wall of the sludge cleaning rod exerts a pushing force on the sludge in the sludge storage tank to push the sludge out of the other end of the sludge storage tank, and the sludge cleaning is convenient.

[0013] Preferably, a limiting plate is threadedly connected to the bottom of the support rod, and the diameter of the limiting plate is greater than the inner diameter of the movable cylinder.

[0014] By adopting the technical scheme, during the descending process of the protection plate, the movable cylinder descends until it abuts against the limiting plate. The limiting plate limits the descending position of the movable cylinder, that is, limits the deformation degree of the protection plate, and the limiting plate is connected to the support rod in a threaded manner, which facilitates the adjustment of the position of the limiting plate, thereby ensuring that the deformation degrees of the protection plates at different positions are different and corresponding arched structures can be formed.

[0015] As preferred, the inner wall of the box is provided with a flood discharge hole along the length direction of the box, the flood discharge hole is communicated with the end of the box, the side wall of the culvert is provided with a plurality of anti-flooding holes arranged obliquely, the lower end of the anti-flooding hole is provided on the inner wall of the culvert, and the other end is communicated with the flood discharge hole.

[0016] By adopting the above technical scheme, when the sludge in the sludge storage tank is full and the sludge accumulated on the protection plate affects drainage, the water level in the culvert rises until it exceeds the anti-flooding hole, the sewage enters the flood discharge hole from the anti-flooding hole, and is discharged through the flood discharge hole, thereby ensuring the drainage effect of the culvert. The oblique arrangement of the anti-flooding hole can effectively prevent the sludge and dust from blocking the anti-flooding hole and affecting the flood discharge.

[0017] As preferred, the inner wall of the culvert is slidably connected with a floating plate for shielding the anti-flooding hole, and the density of the floating plate is less than the density of water.

[0018] By adopting the above technical scheme, under normal circumstances, the floating plate shields the anti-flooding hole under the action of gravity, thereby shielding and protecting the anti-flooding hole and preventing dust from blocking the anti-flooding hole. When the water level rises and lifts the floating plate, the sewage can be discharged through the anti-flooding hole, thereby ensuring the drainage effect.

[0019] As preferred, the bottom of the culvert on both sides is obliquely provided with a water guide plate, and the upper end of the water discharge groove is connected with the lower end of the water guide plate.

[0020] By adopting the above technical scheme, the water guide plate reduces the accumulation of sludge at the corner of the culvert, and the sludge slides down the water guide plate and falls on the protection plate, which can be discharged, thereby reducing the accumulation of sludge in the culvert.

[0021] As preferred, the protection plate is provided with a plurality of connecting holes corresponding to the movable cylinders one by one, a connecting bolt for threadedly connecting with the movable cylinder is arranged in the connecting hole, and the end of the connecting bolt is located above the protection plate.

[0022] By adopting the above technical scheme, the protection plate is detachably connected with the movable cylinder through the connecting bolt, which is convenient for disassembly and maintenance of the protection plate, and also facilitates cleaning of the sludge storage tank and the water discharge groove.

[0023] Another object of the present application is to provide a construction method of the anti-clogging box culvert structure, measuring and lofting, the surveyor uses the total station instrument to release the box culvert center line and the road center line, and uses the level to measure the ground elevation, and according to the box culvert center line and the road center line, the total station instrument and the steel ruler are used to release the foundation pit bottom line and the foundation pit upper opening excavation line, and the center pile and the excavation edge line are guided by the total station instrument; the foundation trench is excavated, the box culvert foundation pit is excavated, the foundation pit excavation slope is adopted, the slope is 1:1.5, and the actual soil quality is appropriately adjusted; the cushion is laid, after the foundation pit excavation is completed, the 50cm thick sand gravel cushion is laid in the middle part, the end part is 80cm, the filling is divided into two layers, and the tamping machine is used for compaction; the base steel bar is bound, the form is erected, after the on-site technical personnel self-inspection is qualified, the concrete pouring is carried out, the concrete surface is polished for the second time, then the geotextile is covered in time, the water is sprinkled for maintenance, the drainage ditch is excavated around the foundation pit during the maintenance process, and the rainwater is prevented from entering the foundation pit; the form is removed after the concrete strength reaches 85% of the design strength, the appearance quality and the geometric size are checked by the supervising engineer during the form removal, and the supervision engineer signs the approval, so that the next process construction is carried out.

[0024] As preferred, a plurality of vertical support rods are embedded in the bottom of the drainage groove during the concrete pouring.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. By arranging the drainage groove, the sludge storage groove and the protection plate, the sludge in the culvert can be discharged to a certain extent, so that the sludge in the culvert is reduced, and the effect of the culvert drainage is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, box; 2, culvert; 3, drainage groove; 4, support rod; 5, movable cylinder; 6, support spring; 7, sludge storage groove; 8, wall scraping frame; 9, sludge cleaning block; 10, sludge cleaning rod; 12, limiting plate; 13, flood discharge hole; 14, waterlogging prevention hole; 15, floating plate; 16, water guide plate; 17, connecting hole; 18, connecting bolt; 19, protection plate. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below in combination with all the drawings.

[0031] Embodiment one

[0032] The embodiment of the present application discloses an anti-clogging box culvert structure, referring to Figure 1, including the box 1, the box 1 middle part is provided with a through box 2 along the length direction, the bottom of the culvert 2 is provided with a lower drainage channel 3. The drainage channel 3 is slidably connected with the guard plate 19 for shielding the drainage channel 3, the guard plate 19 has a certain elastic toughness, can be deformed to a certain extent.

[0033] The bottom of the drainage channel 3 is fixed with a plurality of support rods 4, the support rods 4 are arranged in rows, the drainage channel 3 is laid with a plurality of rows of support rods 4 along the length direction, and each row is provided with at least three support rods 4. A plurality of connecting holes 17 corresponding to the support rods 4 are formed in the guard plate 19, connecting bolts 18 are arranged in the connecting holes 17, the upper ends of the connecting bolts 18 are located on the upper surface of the guard plate 19, the lower ends of the connecting bolts 18 are threadedly connected with protective cylinders, and the protective cylinders are sleeved on the support rods 4. The support springs 6 are arranged between the support rods 4 and the protective cylinders. The elastic coefficients of the support springs 6 located on both sides are smaller than that of the support spring 6 located in the middle.

[0034] When the guard plate 19 is subjected to pressure, the guard plate 19 descends along the drainage channel 3, the protective cylinder compresses the support spring 6, and because the elastic coefficients of the support springs 6 are different, the deformation amount of the springs located on both sides is larger, so the descending distance of the guard plate 19 on both sides is also larger. Therefore, the guard plate 19 forms an arched structure that arches upward.

[0035] The drainage channel 3 is provided with two sewage storage tanks 7 on both sides, and the two ends of the sewage storage tanks 7 are communicated with the outside. When the culvert 2 is used for flood discharge and sewage discharge, the sludge is deposited on the guard plate 19, the guard plate 19 is deformed into an arch shape, the edges of the guard plate 19 on both sides are lowered and point to the sewage storage tanks 7. The sludge slides along the arched guard plate 19 to both sides and flows into the sewage storage tanks 7, thereby reducing the deposition of sludge on the guard plate 19. The drainage effect of the culvert 2 itself is ensured, and clogging is prevented.

[0036] The bottom of the support rod 4 is threadedly connected with a limiting plate 12, and the diameter of the limiting plate 12 is larger than the inner diameter of the movable cylinder 5. When the movable cylinder 5 slides downward along the support rod 4 and abuts against the limiting plate 12, the movable cylinder 5 cannot continue to slide downward. The limiting plate 12 is connected with the support rod 4 in a threaded manner, the position of the limiting plate 12 can be adjusted, and thus the movement stroke of the movable cylinder 5 can be adjusted and controlled. Therefore, the stroke of the movable cylinder 5 at different positions can be adjusted and controlled, and the smooth formation of the arched structure of the guard plate 19 can be ensured.

[0037] The wall scraping frame 8 is connected with the movable cylinder 5 on both sides in a fixed manner. The wall scraping frame 8 is in contact with the inner wall of the silt storage tank 7. When the movable cylinder 5 slides up and down, the wall scraping frame 8 scrapes the inner wall of the silt storage tank 7, thereby scraping the sludge on the inner wall of the silt storage tank 7 and reducing the accumulation of sludge in the silt storage tank 7. The silt storage tank 7 is detachably connected with a silt cleaning block 9. The silt cleaning block 9 is rotatably connected with a silt cleaning rod 10. The silt cleaning rod 10 is provided with a spiral silt cleaning groove on the outer wall. When the amount of sludge in the silt storage tank 7 reaches a certain amount, the operator can install the silt cleaning block 9 at the end of the silt storage tank 7, and then rotate the silt cleaning rod 10. The silt cleaning groove on the outer wall of the silt cleaning rod 10 can apply a pushing force to the sludge in the silt storage tank 7, thereby pushing the sludge out of the other end of the silt storage tank 7, and the dredging is convenient.

[0038] The bottom of the side wall of the culvert 2 is obliquely provided with a water guide plate 16. The upper end of the water discharge groove 3 is connected with the lower end of the water guide plate 16. The water guide plate 16 reduces the accumulation of sludge at the corners of the culvert 2. The sludge slides down the water guide plate 16 and falls on the protection plate 19, which can be discharged, thereby reducing the accumulation of sludge in the culvert 2.

[0039] The side wall of the box body 1 is provided with a flood discharge hole 13 parallel to the culvert 2. The two ends of the flood discharge hole 13 are connected with the outside. The side wall of the culvert 2 is provided with a plurality of obliquely arranged waterlogging prevention holes 14. The lower end of the waterlogging prevention hole 14 is provided on the inner wall of the culvert 2, and the other end is connected with the flood discharge hole 13. The inner wall of the culvert 2 is slidably connected with a floating plate 15 for shielding the waterlogging prevention hole 14. The density of the floating plate 15 is less than that of water. Under normal circumstances, the floating plate 15 shields the waterlogging prevention hole 14 under the action of gravity, thereby shielding and protecting the waterlogging prevention hole 14 and preventing dust from blocking the waterlogging prevention hole 14. When the water level rises and lifts the floating plate 15, sewage can be discharged through the waterlogging prevention hole 14, thereby ensuring the drainage effect.

[0040] The implementation principle of the anti-clogging box culvert structure of the embodiment is as follows: when the flood is discharged, the sewage flows out of the culvert 2. When the sludge deposits on the protection plate 19, the protection plate 19 descends and deforms into an arch shape. The sludge slides to both ends of the protection plate 19 and flows into the silt storage tank 7. When the water level rises due to excessive sludge, the sewage can be discharged from the waterlogging prevention hole 14, thereby ensuring the drainage effect of the culvert 2.

[0041] When it is sunny, the operator can disassemble the protection plate 19 to clean the silt storage tank 7 and the water discharge groove 3 and maintain or replace the internal components.

[0042] Embodiment two

[0043] The application discloses a construction method of an anti-clogging box culvert structure. A center line of the box culvert and a center line of a road are laid out by a total station instrument; a ground elevation is measured by a level; a bottom line of a foundation pit and an excavation line of an upper opening of the foundation pit are laid out according to the center line of the box culvert and the center line of the road by the total station instrument and a steel ruler; a center pile and an excavation edge line are led out by the total station instrument; a foundation trench is excavated; the box culvert foundation pit is excavated; a slope of the foundation pit is excavated; a slope gradient is 1:1.5; the slope gradient is adjusted according to actual soil conditions; a cushion is laid; after the foundation pit is excavated, a 50cm-thick sand and gravel cushion is laid in the middle part, an 80cm-thick sand and gravel cushion is laid in end parts, the sand and gravel cushion is filled in two layers, and the sand and gravel cushion is compacted by ramming machinery; base steel bars are bound and formwork is erected; after self-inspection of on-site technical personnel is qualified, concrete is poured; when the concrete is poured, a plurality of support rods vertically arranged are pre-buried at a water discharge groove; after secondary smoothing of a concrete surface, the concrete surface is covered with geotextile in time, water is sprinkled for maintenance, a drainage ditch is excavated around the foundation pit during the maintenance process, and rainwater is prevented from entering the foundation pit; formwork is removed after the concrete strength reaches 85% of the design strength; when the formwork is removed, a supervising engineer inspects appearance quality and geometric dimensions and signs a certificate, so as to facilitate construction of a next process.

[0044] The above are all preferred embodiments of the application, and do not limit the protection scope of the application; therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. An anti-clogging box culvert structure comprising a box body (1), at least one culvert (2) is arranged in the box body (1), characterized in that: The culvert (2) is provided with a drainage groove (3) at the bottom, a flexible protection plate (19) for shielding the top of the drainage groove (3) is movably connected in the drainage groove (3), a plurality of support rods (4) are arranged at the bottom of the drainage groove (3), each row of support rods (4) is arranged along the width direction of the drainage groove (3) and at least three support rods (4) are arranged, the bottom of the protection plate (19) is provided with a movable cylinder (5) corresponding to each support rod (4), the movable cylinder (5) is sleeved on the support rod (4), a support spring (6) is arranged between the movable cylinder (5) and the support rod (4), the elastic coefficient of the support spring (6) located at the two sides is smaller than that of the support spring (6) located in the middle, and the drainage groove (3) is provided with a sewage storage tank (7) with two ends communicating with the outside at both sides.

2. The anti-clogging box culvert structure according to claim 1, characterized in that: A wall scraping frame (8) is vertically and slidably connected in the sewage storage tank (7), the wall scraping frame (8) is fixedly connected with the movable cylinders (5) located at the two sides, and the wall scraping frame (8) abuts against the inner wall of the sewage storage tank (7).

3. The anti-clogging box culvert structure according to claim 1, characterized in that: A sewage cleaning block (9) is detachably connected to the end of the sewage storage tank (7), a sewage cleaning rod (10) is rotatably connected to the center of the sewage cleaning block (9), and a spiral sewage cleaning groove is arranged on the outer wall of the sewage cleaning rod (10).

4. The anti-clogging box culvert structure according to claim 1, characterized in that: A limiting plate (12) is threadedly connected to the bottom of the support rod (4), and the diameter of the limiting plate (12) is greater than the inner diameter of the movable cylinder (5).

5. The anti-clogging box culvert structure according to claim 1, characterized in that: A flood discharge hole (13) is formed in the inner wall of the box (1) along the length direction of the box (1), the flood discharge hole (13) communicates with the end of the box (1), and a plurality of anti-flooding holes (14) are formed in the side wall of the culvert (2) and are arranged obliquely, one end of the anti-flooding hole (14) is formed on the inner wall of the culvert (2), and the other end communicates with the flood discharge hole (13).

6. The anti-clogging box culvert structure according to claim 5, characterized in that: A floating plate (15) for shielding the anti-flooding hole (14) is slidably connected to the inner wall of the culvert (2), and the density of the floating plate (15) is less than that of water.

7. The anti-clogging box culvert structure according to claim 1, characterized by: Water guide plates (16) are obliquely arranged at the bottom of the culvert (2) on both sides, and the upper end of the drainage groove (3) is connected with the lower end of the water guide plate (16).

8. The anti-clogging box culvert structure according to claim 1, characterized in that: A plurality of connecting holes (17) corresponding to the movable cylinders (5) are formed in the protection plate (19), connecting bolts (18) for threadedly connecting with the movable cylinders (5) are arranged in the connecting holes (17), and the ends of the connecting bolts (18) are located above the protection plate (19).

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