Sandbag module structure of drainage box culvert
The stability problem of the box culvert foundation pit slope was solved by using sandbag formwork and drainage system, which improved the stability of the slope and construction efficiency, quickly removed water from the foundation pit, and ensured the stability of the box culvert and the construction progress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-01
- Publication Date
- 2026-03-20
AI Technical Summary
During the construction of box culverts, soil sliding and voiding are prone to occur on the slope of the foundation pit, leading to instability of the foundation pit slope and affecting the construction progress and stability of the box culvert.
The drainage box culvert sandbag formwork structure, which consists of cast-in-place piles, sandbag layers, plastic sheeting layers, drainage ditches, drainage pipes, grids, sump pits, and pumping mechanisms, prevents soil slippage and provides stability through the permeability of the sandbag layers and the design of the reinforcement mechanism, and quickly removes water accumulated in the foundation pit through the drainage system.
It effectively prevents slope soil sliding, improves slope stability, ensures the smooth progress of box culvert construction, and reduces water pressure inside the box culvert by rapidly draining water through multiple channels, thus avoiding instability.
Smart Images
Figure CN116575364B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of drainage box culvert, and particularly relates to a sandbag mold structure of a drainage box culvert. BACKGROUND
[0002] The box culvert refers to a culvert with a box-shaped pipe section made of reinforced concrete. The box culvert is composed of one or more square or rectangular sections and is generally made of reinforced concrete or masonry. However, the reinforced concrete is more widely used. When the span is less than 4 m, the box culvert is used. For pipe culverts, the reinforced concrete box culvert is a cheap alternative. The pier and the abutment are integrally poured.
[0003] During the construction of the box culvert, the cast-in-place piles are densely arranged around the drainage box culvert foundation pit for support. There is generally a certain width of gap between the densely arranged cast-in-place piles. During the excavation of the foundation pit, due to the influence of underground water and adverse geology, the soil between the gaps will slide and be empty, forming a large cavity, which leads to the instability of the foundation pit slope and makes it inconvenient to build the box culvert in the foundation pit.
[0004] Therefore, it is necessary to provide a new sandbag mold structure of a drainage box culvert to solve the above technical problems. SUMMARY
[0005] The technical problem solved by the present application is to provide a sandbag mold structure of a drainage box culvert which can effectively prevent the sliding of the slope soil and improve the stability of the slope.
[0006] To solve the above technical problems, the sandbag mold structure of the drainage box culvert provided by the present application comprises: a cast-in-place pile; a foundation soil layer, a plurality of the cast-in-place pile box culverts are poured in the inside of the foundation soil layer, and the box culvert is installed in the inside of the foundation soil layer; a mold plate, the mold plate comprises a sandbag layer, a drainage ditch, a second mold plate, a drainage pipe, a plastic cloth layer, a fixing frame and a grid, the sandbag layer is symmetrically stacked in the inside of the foundation soil layer, and the sidewall of the sandbag layer is paved with the plastic cloth layer; the drainage ditch is symmetrically installed at the bottom end of the foundation soil layer, and the bottom end of the drainage ditch is symmetrically installed with the drainage pipe; the grid is installed on the surface of the drainage ditch, and the grid abuts against the bottom surface of the sandbag layer; the second mold plate abuts against the plastic cloth layer, and the second mold plate is fixed through the fixing frame; a collecting mechanism, the collecting mechanism comprises a notch, a water collecting well, a cylinder and a fixed plate, the two ends of the fixing frame abut against the water collecting well and the second mold plate respectively, the notch is arranged between the sandbag layers, and the water collecting well is installed in the inside of the notch; the fixed plate is fixed at the connection between the water collecting well and the cylinder, and the sidewall of the cylinder is installed with the drainage pipe; a water pumping mechanism, the water pumping mechanism is installed in the inside of the water collecting well and the cylinder; a drainage mechanism, the drainage mechanism is installed at the top end of the cylinder; a reinforcing mechanism, the reinforcing mechanism is connected between the box culvert and the water collecting well, and the reinforcing mechanism communicates with the cylinder.
[0007] Preferably, the box culvert comprises a bottom plate, a concrete pouring layer, a first formwork and a support, the bottom plate is poured at the bottom end of the foundation pit soil layer, the first formwork is fixed on the surface of the bottom plate through the support, and the concrete pouring layer is poured between the first formwork and the plastic cloth layer.
[0008] Preferably, the top surface of the cylinder body is in the same plane as the bottom surface of the bottom plate, and the height of the cylinder body is greater than the height of the drainage ditch.
[0009] Preferably, the drainage mechanism comprises a gauze layer, a first filter screen, a groove, a connecting pipe, a fixed block, a floating ball and a fixed net, the top surface of the cylinder body is provided with a plurality of circular truncated cone-shaped grooves, and the connecting pipe is installed in the interior of the groove; the top end of the connecting pipe is installed with the first filter screen, and the sidewall of the first filter screen wraps the gauze layer; the interior of the connecting pipe is installed with the fixed block and the fixed net, the floating ball abuts against the fixed net, and the floating ball is clamped in the funnel-shaped fixed block.
[0010] Preferably, the water pumping mechanism comprises a dewatering pipe, a water pump, a filter cartridge and a connecting rod, the fixed plate abuts against the connecting rod, and a plurality of connecting rods are symmetrically installed on the sidewall of the filter cartridge; the two ends of the dewatering pipe are respectively connected with the filter cartridge and the water pump, and the water pump is installed on the surface of the foundation pit soil layer.
[0011] Preferably, the bottom end of the cylinder body is in a conical structure, the vertical distance between the dewatering pipe and the bottom end of the cylinder body is less than the vertical distance between the connecting pipe and the bottom end of the cylinder body, and the drainage pipe is located between the bottom end of the dewatering pipe and the top end of the connecting pipe.
[0012] Preferably, the notch is aligned with one of the cast-in-place piles, and the second formwork is located in the interior of the notch.
[0013] Preferably, the reinforcing mechanism comprises a support rod, a second filter screen, an installation pipe, a first concrete layer, a steel reinforcement cage, a second concrete layer, a sealing plate and a pre-embedded part, the installation pipe is installed at the top end of the box culvert and the water collecting well, and the installation pipe communicates the interiors of the box culvert and the cylinder body; the bottom end of the installation pipe is installed with the sealing plate, and the sealing plate abuts against the fixed plate; one end of the installation pipe is installed with the hollow circular truncated cone-shaped second filter screen, and the second filter screen is fixed in the interior of the box culvert through the support rod; the first concrete layer is poured between the water collecting well and the box culvert, the steel reinforcement cage is laid in the interior of the first concrete layer, and the steel reinforcement cage is connected with the pre-embedded parts of the sidewalls of the box culvert and the water collecting well; the interior of the water collecting well is poured with the second concrete layer, and the second concrete layer abuts against the surface of the sealing plate.
[0014] Compared with related technologies, the drainage culvert sandbag mold structure provided by the present invention has the following beneficial effects:
[0015] This invention provides a drainage box culvert sandbag formwork structure. After excavating the foundation pit, cast-in-place piles are used to reinforce the pit slope. A base slab is poured at the bottom of the pit, and sandbag layers are stacked alternately upwards along the edge of the base slab. The sandbag layers are in contact with the pit slope, effectively preventing soil slippage and voiding, ensuring the stability of the pit, and providing convenient conditions for the casting of the box culvert structure. Because the sandbags themselves are permeable, if groundwater seeps in, the sandbag layers form a filter layer, providing a filter effect on the slope soil and releasing soil pressure. The sandbag layers themselves have good stability and are not prone to displacement or deformation. A plastic sheet is laid on the surface of the sandbag layers. A template is erected on the surface of the base slab using supports, and concrete is poured between the template and the plastic sheet to form a concrete pouring layer. The concrete pouring layer and the base slab form the box culvert. Thus, during the construction of the box culvert, the sandbag layers act as a template on one side of the box culvert, accelerating construction efficiency. The drainage ditch is set below the sandbag layer. When the soil moisture content of the foundation pit is too high, the sandbag layer has good permeability, and water enters the interior of the drainage ditch through the sandbag layer and the grid. Then, it enters the interior of the cylinder and the collection well through the drainage pipe. The pumping mechanism is used to drain the water inside the cylinder and the collection well, preventing water from accumulating at the bottom of the foundation pit, keeping the foundation pit dry, and facilitating construction. After the box culvert solidifies and the formwork is removed, the reinforcement mechanism is installed between the collection well and the box culvert. The reinforcement mechanism increases the stability of the box culvert in the soil. When encountering floods exceeding the standard during the flood season and the box culvert is full, the water has an excessive impact force on the interior of the box culvert, making it prone to instability. At this time, the reinforcement mechanism transports some of the water inside the box culvert into the interior of the cylinder, allowing the water inside the box culvert to be discharged through the drainage ditch. This multi-path drainage accelerates the drainage efficiency and reduces the water volume and pressure inside the box culvert, preventing instability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the drainage culvert sandbag mold structure provided by the present invention;
[0017] Figure 2 for Figure 1 The image shows a top view of the sandbag layer structure.
[0018] Figure 3 for Figure 1 The diagram shows an enlarged view of the structure at point A.
[0019] Figure 4 for Figure 2 The diagram shows an enlarged view of the structure at point B.
[0020] Figure 5 for Figure 3 The diagram shows an enlarged view of the structure at point C.
[0021] Figure 6 for Figure 3 The diagram shows the cylindrical structure.
[0022] Figure 7 for Figure 1 The diagram shows the structure of the drainage ditch.
[0023] Figure 8 for Figure 6 The diagram shows an enlarged view of the structure at point D.
[0024] The diagram labels are as follows: 1. Foundation pit soil layer; 2. Cast-in-place pile; 3. Box culvert; 31. Base slab; 32. Concrete pouring layer; 33. First formwork; 34. Support frame; 4. Formwork; 41. Sandbag layer; 42. Drainage ditch; 43. Second formwork; 44. Drainage pipe; 45. Plastic sheet layer; 46. Fixing frame; 47. Grating; 5. Drainage mechanism; 51. Gauze layer; 52. First filter screen; 53. Groove; 54. Connecting pipe; 55. Fixing block. 56. Float, 57. Fixed net, 6. Pumping mechanism, 61. Downdraft pipe, 62. Water pump, 63. Filter cartridge, 64. Connecting rod, 7. Collection mechanism, 71. Notch, 72. Collection well, 73. Cylinder, 74. Fixed plate, 8. Reinforcing mechanism, 81. Support rod, 82. Second filter screen, 83. Installation pipe, 84. First concrete layer, 85. Reinforcing cage, 86. Second concrete layer, 87. Sealing plate, 88. Embedded parts. Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The sandbag structure of the drainage box culvert comprises: a cast-in-place pile 2; a foundation pit soil layer 1, the inside of which is poured with a plurality of cast-in-place piles 2; a box culvert 3 installed in the inside of the foundation pit soil layer 1; a formwork 4 comprising a sandbag layer 41, a drainage ditch 42, a second formwork 43, a drainage pipe 44, a plastic cloth layer 45, a fixing frame 46 and a grating 47, the inside of the foundation pit soil layer 1 is symmetrically piled with the sandbag layer 41, and the sidewall of the sandbag layer 41 is paved with the plastic cloth layer 45; the bottom end of the foundation pit soil layer 1 is symmetrically installed with the drainage ditch 42, the bottom end of the drainage ditch 42 is symmetrically installed with the drainage pipe 44; the surface of the drainage ditch 42 is installed with the grating 47, and the grating 47 abuts against the bottom surface of the sandbag layer 41; the second formwork 43 abuts against the plastic cloth layer 45, and the second formwork 43 is fixed by the fixing frame 46; a collecting mechanism 7 comprising a notch 71, a water collecting well 72, a cylinder 73 and a fixed plate 74, the two ends of the fixing frame 46 respectively abut against the water collecting well 72 and the second formwork 43, the notch 71 is arranged between the sandbag layers 41, and the inside of the notch 71 is installed with the water collecting well 72; the fixed plate 74 is fixed at the connection between the water collecting well 72 and the cylinder 73, and the sidewall of the cylinder 73 is installed with the drainage pipe 44; a water pumping mechanism 6 installed in the inside of the water collecting well 72 and the cylinder 73; a drainage mechanism 5 installed at the top end of the cylinder 73; a reinforcing mechanism 8 connecting the box culvert 3 and the water collecting well 72, and the reinforcing mechanism 8 communicates with the cylinder 73.
[0027] The box culvert 3 comprises a bottom plate 31, a concrete pouring layer 32, a first formwork 33 and a support 34, the bottom end of the foundation pit soil layer 1 is poured with the bottom plate 31, the first formwork 33 is fixed on the surface of the bottom plate 31 by the support 34, and the concrete pouring layer 32 is poured between the first formwork 33 and the plastic cloth layer 45, so as to form the box culvert 3.
[0028] The water pumping mechanism 6 comprises a dewatering pipe 61, a water pumping pump 62, a filter cylinder 63 and connecting rods 64, the fixed plate 74 abuts against the connecting rods 64, the sidewall of the filter cylinder 63 is symmetrically provided with a plurality of connecting rods 64; the two ends of the dewatering pipe 61 are connected with the filter cylinder 63 and the water pumping pump 62 respectively, and the water pumping pump 62 is installed on the surface of the foundation pit soil layer 1; the top surface of the cylinder body 73 is in the same plane with the bottom surface of the bottom plate 31, and the height of the cylinder body 73 is greater than the height of the drainage ditch 42; in order to facilitate the accumulated water in the foundation pit to enter the inside of the drainage ditch 42, the accumulated water passes through the sand bag layer 31 for filtration after entering the inside of the cylinder body 73 through the drainage ditch 42, the sand bag layer 31 blocks the impurities in the accumulated water from entering the inside of the drainage ditch 42, and the water enters the inside of the cylinder body 73 again to remove the impurities in the water, thereby reducing the probability of water pump blockage; when the water pumping pump 62 operates to generate suction in the inside of the dewatering pipe 61, the accumulated water in the inside of the cylinder body 73 is discharged through the dewatering pipe 61, thereby avoiding the accumulated water in the inside of the foundation pit and facilitating the construction of workers.
[0029] The water pumping mechanism 6 comprises a dewatering pipe 61, a water pumping pump 62, a filter cylinder 63 and connecting rods 64, the fixed plate 74 abuts against the connecting rods 64, the sidewall of the filter cylinder 63 is symmetrically provided with a plurality of connecting rods 64; the two ends of the dewatering pipe 61 are connected with the filter cylinder 63 and the water pumping pump 62 respectively, and the water pumping pump 62 is installed on the surface of the foundation pit soil layer 1; the top surface of the cylinder body 73 is in the same plane with the bottom surface of the bottom plate 31, and the height of the cylinder body 73 is greater than the height of the drainage ditch 42; in order to facilitate the accumulated water in the foundation pit to enter the inside of the drainage ditch 42, the accumulated water passes through the sand bag layer 31 for filtration after entering the inside of the cylinder body 73 through the drainage ditch 42, the sand bag layer 31 blocks the impurities in the accumulated water from entering the inside of the drainage ditch 42, and the water enters the inside of the cylinder body 73 again to remove the impurities in the water, thereby reducing the probability of water pump blockage; when the water pumping pump 62 operates to generate suction in the inside of the dewatering pipe 61, the accumulated water in the inside of the cylinder body 73 is discharged through the dewatering pipe 61, thereby avoiding the accumulated water in the inside of the foundation pit and facilitating the construction of workers.
[0030] The bottom end of the cylinder body 73 is in a conical structure, in order to facilitate the cylinder body 73 to enter the soil layer and facilitate the impurities in the water to deposit at the bottom end of the cylinder body 73, and the vertical distance between the dewatering pipe 61 and the bottom end of the cylinder body 73 is less than the vertical distance between the connecting pipe 54 and the bottom end of the cylinder body 73, the drainage pipe 44 is located between the bottom end of the dewatering pipe 61 and the top end of the connecting pipe 54, in order to facilitate the water in the inside of the connecting pipe 54 and the drainage pipe 44 to enter the inside of the cylinder body 73, and facilitate the dewatering pipe 61 to timely pump out the accumulated water in the inside of the cylinder body 73.
[0031] The gap 71 is aligned with one of the bored piles 2, the bored pile 2 fixes the soil layer at the gap 71, avoids the soil layer at the gap 71 from sliding, and the second formwork 43 is located inside the gap 71, so as to facilitate the second formwork 43 to fill the gap at the gap 71, and facilitate the pouring of concrete.
[0032] The reinforcing machine 8 comprises a support rod 81, a second filter screen 82, a mounting pipe 83, a first concrete layer 84, a steel cage 85, a second concrete layer 86, a sealing plate 87 and a pre-embedded part 88. The mounting pipe 83 is mounted at the top end of the box culvert 3 and the water collecting well 72, and communicates the inside of the box culvert 3 and the cylinder 73. The bottom end of the mounting pipe 83 is mounted with the sealing plate 87, and the sealing plate 87 abuts against the fixed plate 74. One end of the mounting pipe 83 is mounted with the hollow circular truncated cone-shaped second filter screen 82, and the second filter screen 82 is fixed in the inside of the box culvert 3 through the support rod 81. The first concrete layer 84 is poured between the water collecting well 72 and the box culvert 3, the inside of the first concrete layer 84 is paved with the steel cage 85, and the steel cage 85 is connected with the pre-embedded part 88 of the side wall of the box culvert 3 and the water collecting well 72. The second concrete layer 86 is poured in the inside of the water collecting well 72, and abuts against the surface of the sealing plate 87. The first concrete layer 84, the steel cage 85 and the pre-embedded part 88 connect the water collecting well 72 and the box culvert 3 together, the inside of the water collecting well 72 is filled with the second concrete layer 86, so that the water collecting well 72 and the cylinder 73 form a foundation pile, a plurality of foundation piles connect two sides of the box culvert 3, prevent the box culvert 3 from deviating, and increase the stability of the box culvert 3 in the soil layer. When the inside of the box culvert 3 is full of water, the water in the inside of the box culvert 3 penetrates through the second filter screen 82 into the inside of the mounting pipe 83 and the cylinder 73, and is then discharged through the drainage ditch 42, so as to realize multi-path drainage, accelerate the drainage efficiency, reduce the flow rate and flow of the water in the inside of the box culvert 3, and avoid the instability caused by the excessive internal pressure of the box culvert 3.
[0033] The working principle of the sandbag mold structure of the drainage box culvert provided by the application is as follows: after the foundation pit is excavated, the cast-in-place pile 2 is used to reinforce the slope of the foundation pit; the bottom plate 31 is poured at the bottom end of the foundation pit, and the sandbag layer 41 is staggered and stacked upward along the edge of the bottom plate 31, the sandbag layer 31 is in contact with the slope of the foundation pit, which can effectively prevent the soil from slipping and emptying, ensure the stability of the foundation pit, and provide convenient conditions for pouring the box culvert structure; and since the sandbag itself has water permeability, if underground water seeps, the sandbag layer 41 forms a filter layer and has a filter effect on the soil of the slope, releases the pressure of the soil, and the sandbag layer 41 has good stability and is not prone to displacement and deformation; and the surface of the sandbag layer 41 is paved with the plastic cloth layer 45. The surface of the bottom plate 31 is provided with the first formwork 33 through the support 34, the sandbag layer 41 is provided with a notch 71 every 100 meters, and the notch 71 is provided with the cylinder 73 and the water collecting well 72; the second formwork 43 is installed in the notch 71 and fixed through the fixing frame 46; the second formwork 43 closes the gap at the notch 71 to avoid slurry leakage. The concrete pouring layer 32 is formed by pouring concrete between the first formwork 33 and the plastic cloth layer 45, and the plastic cloth layer 45 prevents concrete from leaking into the sandbag layer 41; the concrete pouring layer 32 and the bottom plate 31 form the box culvert 3, so that the sandbag layer 41 acts as a formwork on one side of the box culvert 3 during the construction of the box culvert, thereby accelerating the construction efficiency; the drainage ditch 42 is arranged below the sandbag layer 41, when the water content of the soil layer of the foundation pit is too large, the sandbag layer 41 has good water permeability, water enters the inside of the drainage ditch 42 through the sandbag layer 41 and the grid 47, and then enters the inside of the cylinder 73 and the water collecting well 72 through the drainage pipe 44, the water is filtered by the sandbag layer 31, and the sandbag layer 31 blocks impurities in the water from entering the inside of the drainage ditch 42; when the notch 71 is filled with water, the water flows downward into the groove 53 in the circular truncated cone shape, and then enters the inside of the cylinder 73 through the inside of the gauze layer 51, the first filter screen 52 and the connecting pipe 54, the gauze layer 51 blocks impurities from entering the inside of the cylinder 73; when the inside of the cylinder 73 is filled with too much water, the water contacts the floating ball 56 through the fixed net 57, pushes the floating ball 56 upward to close the fixed block 55, and avoids the water in the inside of the cylinder 73 from entering the foundation pit through the connecting pipe 54.When the barrel 73 inside water too much, the water pump 62 external power supply, the water pump 62 operation makes the precipitation pipe 61 inside produces suction, through the precipitation pipe 61 the barrel 73 inside the accumulated water is discharged, avoid the inside of the foundation pit accumulated water, facilitate the worker construction, and when the box culvert 3 solidification removes the first template 33 and the second template 43, the connecting pipe 54 is taken out from the groove 53, the installation pipe 83 is installed in the inside of the box culvert 3 and the barrel 73, the sealing plate 87 of the installation pipe 83 side wall is resisted the fixed plate 74;When the reinforcement cage 85 connects the box culvert 3 and the pre-embedded part 88 of the well 72 side wall, a layer of formwork is built between the well 72 and the box culvert 3, and the first concrete layer 84 is poured, and then the second concrete layer 86 is poured into the inside of the well 72, the sealing plate 87 and the fixed plate 74 prevent the concrete from entering the inside of the barrel 73, and whether the concrete enters the inside of the barrel 73 is observed through the groove 53 on the top surface of the barrel 73.When the box culvert 3 is completed and buried, the groove 53 is closed.In the use process of the box culvert 3, the first concrete layer 84, the reinforcement cage 85 and the pre-embedded part 88 connect the well 72 and the box culvert 3 together, the well 72 is filled with the second concrete layer 86, so that the well 72 and the barrel 73 form a foundation pile, and multiple foundation piles connect the two sides of the box culvert 3, prevent the box culvert 3 from deviating, and increase the stability of the box culvert 3 in the soil layer;When the inside of the box culvert 3 is full of water, the installation pipe 83 is installed at the top end of the box culvert 3, at this time, the water in the inside of the box culvert 3 penetrates the second filter screen 82 into the inside of the installation pipe 83 and the barrel 73, and then is discharged through the drainage ditch 42, multiple ways of drainage, accelerate the drainage efficiency, at the same time, reduce the flow rate and flow of the water in the inside of the box culvert 3, avoid the instability caused by the excessive internal pressure of the box culvert 3.In normal use, the sandbag layer 41 continues to act as a filter layer, and the excessive accumulated water in the soil layer around the box culvert 3 is discharged into the drainage ditch 42, so as to ensure the stability of the soil layer around the box culvert 3, and further protect the box culvert 3 in the soil layer.
[0034] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A drainage culvert sandbag formwork structure, characterized in that, include: Cast-in-place piles (2); The foundation pit soil layer (1) is filled with multiple cast-in-place piles (2). Box culvert (3), which is installed inside the soil layer (1) of the foundation pit; Template (4), the template (4) includes a sandbag layer (41), a drainage ditch (42), a second template (43), a drainage pipe (44), a plastic sheet layer (45), a fixing frame (46), and a grid (47). The sandbag layer (41) is symmetrically stacked inside the foundation pit soil layer (1), and the plastic sheet layer (45) is laid on the side wall of the sandbag layer (41). The drainage ditch (42) is symmetrically installed at the bottom end of the foundation pit soil layer (1), and the drainage pipe (44) is symmetrically installed at the bottom end of the drainage ditch (42). The grid (47) is installed on the surface of the drainage ditch (42), and the grid (47) abuts against the bottom surface of the sandbag layer (41). The second template (43) abuts against the plastic sheet layer (45), and the second template (43) is fixed by the fixing frame (46). The collection mechanism (7) includes a notch (71), a water collection well (72), a cylinder (73), and a fixing plate (74). The two ends of the fixing frame (46) respectively abut against the water collection well (72) and the second template (43). The notch (71) is provided between the sandbag layers (41), and the water collection well (72) is installed inside the notch (71). The fixing plate (74) is fixed at the connection between the water collection well (72) and the cylinder (73), and the drain pipe (44) is installed on the side wall of the cylinder (73). A pumping mechanism (6) is installed inside the water collection well (72) and the cylinder (73); A drainage mechanism (5) is installed at the top of the cylinder (73); The reinforcement mechanism (8) connects the box culvert (3) and the water collection well (72), and the reinforcement mechanism (8) is connected to the cylinder (73).
2. The drainage culvert sandbag formwork structure according to claim 1, characterized in that, The box culvert (3) includes a bottom plate (31), a concrete pouring layer (32), a first template (33), and a support (34). The bottom plate (31) is poured at the bottom of the foundation pit soil layer (1). The first template (33) is fixed to the surface of the bottom plate (31) by the support (34), and the concrete pouring layer (32) is poured between the first template (33) and the plastic cloth layer (45).
3. The drainage culvert sandbag formwork structure according to claim 2, characterized in that, The top surface of the cylinder (73) and the bottom surface of the base plate (31) are located in the same plane, and the height of the cylinder (73) is greater than the height of the drainage ditch (42).
4. The drainage culvert sandbag formwork structure according to claim 3, characterized in that, The drainage mechanism (5) includes a gauze layer (51), a first filter screen (52), a groove (53), a connecting pipe (54), a fixing block (55), a float (56), and a fixing net (57). The top surface of the cylinder (73) is provided with a plurality of frustum-shaped grooves (53). The interior of the grooves (53) is threadedly connected to the connecting pipe (54). The top end of the connecting pipe (54) is fitted with the first filter screen (52), and the side wall of the first filter screen (52) is wrapped with the gauze layer (51). The fixing block (55) and the fixing net (57) are installed inside the connecting pipe (54). The float (56) abuts against the fixing net (57), and the float (56) engages with the fixing block (55), which has a funnel-shaped interior.
5. The drainage culvert sandbag formwork structure according to claim 4, characterized in that, The pumping mechanism (6) includes a downwater pipe (61), a pump (62), a filter cartridge (63), and a connecting rod (64). The fixing plate (74) abuts against the connecting rod (64). Multiple connecting rods (64) are symmetrically installed on the side wall of the filter cartridge (63). The two ends of the downwater pipe (61) are respectively connected to the filter cartridge (63) and the pump (62), and the pump (62) is installed on the surface of the foundation pit soil layer (1).
6. The drainage culvert sandbag formwork structure according to claim 5, characterized in that, The bottom of the cylinder (73) is a conical structure, and the vertical distance between the downwater pipe (61) and the bottom of the cylinder (73) is less than the vertical distance between the connecting pipe (54) and the bottom of the cylinder (73). The drain pipe (44) is located between the bottom of the downwater pipe (61) and the top of the connecting pipe (54).
7. The drainage culvert sandbag formwork structure according to claim 3, characterized in that, The notch (71) is aligned with one of the cast-in-place piles (2), and the second template (43) is located inside the notch (71).
8. The drainage culvert sandbag formwork structure according to claim 1, characterized in that, The reinforcement mechanism (8) includes a support rod (81), a second filter screen (82), an installation pipe (83), a first concrete layer (84), a reinforcing cage (85), a second concrete layer (86), a sealing plate (87), and embedded parts (88). The installation pipe (83) is installed at the top of the box culvert (3) and the water collection well (72), and the installation pipe (83) connects the inside of the box culvert (3) and the cylinder (73). The sealing plate (87) is installed at the bottom end of the installation pipe (83), and the sealing plate (87) abuts against the fixing plate (74). One end of the installation pipe (83) is fitted with a hollow core. The second filter screen (82) is truncated in shape and is fixed inside the box culvert (3) by the support rod (81); the first concrete layer (84) is poured between the water collection well (72) and the box culvert (3), the steel cage (85) is laid inside the first concrete layer (84), and the steel cage (85) connects the embedded part (88) of the side wall of the box culvert (3) and the water collection well (72); the second concrete layer (86) is poured inside the water collection well (72), and the second concrete layer (86) abuts against the surface of the sealing plate (87).
Citation Information
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