Box culvert structure for relieving lateral steep drop

Abstract

The utility model relates to a box culvert structure for relieving lateral steep drop. The box culvert structure comprises an inner frame formed by connecting a pouring bottom plate, two pouring side plates arranged on the two sides of the pouring bottom plate respectively and a pouring top plate arranged above the two pouring side plates. The pouring bottom plate and the pouring side plates are detachably connected, and the pouring side plates and the pouring top plate are detachably connected. An inner supporting mechanism for vertically and laterally supporting a backfill soil layer of the culvert is arranged in the inner frame, the bottom of the inner supporting mechanism is connected with the pouring bottom plate, and the two sides of the inner supporting mechanism are connected with the adjacent pouring side plates respectively; outer supporting mechanisms are detachably connected to the sides, deviating from each other, of the two pouring side plates, and the inclination of the pouring side plates is adjusted through the outer supporting mechanisms; the top of the pouring top plate is fixedly connected with an inverted trapezoidal box cover plate; the box culvert can be adjusted according to the gradient of the soil slopes on the two sides of the culvert, the soil layer structure on one side of the roadbed is effectively supported, and sudden settlement of the box culvert side pavement is prevented.

Description

Technical Field

[0001] The utility model relates to a box culvert structure for alleviating lateral steep drop, belonging to the technical field of box culvert construction. Background Art

[0002] Since there is a certain amount of gravel in the backfill earth, compression settlement will occur on both sides of the box culvert structure during use, which will cause a sudden settlement of the road surface on the side of the box culvert, making the road surface uneven and bumpy, affecting the safety and comfort of driving and pedestrians.

[0003] A Chinese patent with announcement number CN204703078U discloses a box culvert structure for alleviating the steep drop on the side of a box culvert, including a box culvert body consisting of a box culvert top plate, a box culvert bottom plate, and box culvert side walls on both sides. The edges of the box culvert bottom plate on both sides extend horizontally to both sides to form extension plates, respectively, and a plurality of ribs are formed between the box culvert side walls and the extension plates. The edges of the extension plates are located at each rib plate and extend horizontally outward to form a convex toe, and inner pile foundations and outer pile foundations are formed under the box culvert side wall and under the intersection of the rib plate and the convex toe. The patent is to fill the backfill area on both sides of the box culvert body with low-compressible fillers, as well as the inner pile foundation, the outer pile foundation, the extension plate, and the rib plate to jointly bear the backfill soil load and the road surface load on the side of the box culvert to prevent the soil layer below the outer side of the box culvert side wall from being compressed and sinking to form a steep drop; however, the soil slopes on both sides of the culvert are inclined soil slopes, and the box culvert side walls are vertically arranged, resulting in the bottom of the box culvert side wall needing to bear a large backfill soil load, and the effect of supporting the soil layer structure on one side of the roadbed is limited. Utility Model Content

[0004] In order to overcome the above problems, the utility model provides a box culvert structure for alleviating side steep drop, which can be adjusted according to the inclination of the soil slopes on both sides of the culvert, and effectively supports the soil layer structure on one side of the roadbed to prevent the steep settlement of the road surface on the box culvert side.

[0005] The technical solution of the utility model is as follows:

[0006] A box culvert structure for alleviating lateral steep drop, comprising an inner frame formed by a cast bottom plate, two cast side plates arranged on both sides of the cast bottom plate, and a cast top plate arranged above the two cast side plates, which are connected to each other; the cast bottom plate and the cast side plates, as well as the cast side plates and the cast top plate, are all detachably connected; an inner support mechanism is provided in the inner frame for providing vertical and lateral support for the backfill soil layer of the culvert, the bottom of the inner support mechanism is connected to the cast bottom plate, and the two sides of the inner support mechanism are respectively connected to the adjacent cast side plates; the opposite sides of the two cast side plates are detachably connected to an external support mechanism, and the inclination of the cast side plates is adjusted by the external support mechanism; the top of the cast top plate is fixedly connected to an inverted trapezoidal box cover plate.

[0007] Furthermore, a base is provided on one side of the culvert, the base extends into the culvert, and a U-shaped mounting plate fixedly connected to the base is provided in the middle part of the base along its length direction; the casting bottom plate is placed between two mounting vertical plates of the U-shaped mounting plate and is detachably connected to the mounting horizontal plate; the external support mechanism is placed outside the U-shaped mounting plate and is fixedly connected to the base.

[0008] Furthermore, each of the external support mechanisms includes a side panel support plate and a row of electric push rods arranged along the length direction of the cast side panel; the bottom of the side panel support plate is placed above the adjacent mounting vertical plate and is hinged thereto by a hinge, and the side of the side panel support plate is detachably connected to the adjacent casting side panel; the cylinder end of each electric push rod is provided with a cylinder fixing seat hinged thereto, and the cylinder fixing seat is fixedly connected to the base; the piston end of each electric push rod is provided with a piston fixing seat hinged thereto, and the piston fixing seat is fixedly connected to the side of the side panel support plate.

[0009] Furthermore, the internal support mechanism is an L-shaped support plate placed between the casting bottom plate and the casting top plate; both sides of the supporting vertical plates of the L-shaped support plate protrude horizontally outward to form a number of tie rods arranged at intervals, and a sliding sleeve is sleeved on the outer periphery of each tie rod, and the tie rod and the sliding sleeve are connected by a spring; the other end of the sliding sleeve is hinged to a sliding sleeve fixing seat through a rotating shaft, and the other end of the sliding sleeve fixing seat is fixedly connected to the adjacent casting side plate; the L-shaped support plate is fixedly connected to the casting bottom plate by a tightening screw.

[0010] Furthermore, a plurality of fixing screw holes are arranged at intervals along the length direction of the top surface of the casting base plate, and a plurality of pairs of guide rods are symmetrically arranged on both sides of the fixing screw holes; a plurality of guide grooves matching the guide rods are formed inwardly on both sides of the supporting transverse plate of the L-shaped support plate; each of the fixing screws passes through the supporting vertical plate and is threadedly connected with the adjacent fixing screw hole to fix the L-shaped support plate to the casting base plate.

[0011] Furthermore, the bottom of the box covering plate is concave along its length direction to form a receiving groove for accommodating the cast top plate; two groups of vertically penetrating strip-shaped travel grooves are symmetrically arranged on the top surface of the box covering plate, and each travel groove is provided with a positioning bolt, and each positioning bolt is respectively locked with a nut after passing through the box covering plate and the cast top plate; the box covering plate is provided with a cover plate grouting hole that passes through the top and bottom.

[0012] Furthermore, the casting bottom plate, casting side plate and casting top plate are all provided with grouting holes; when the box covering plate is connected to the casting top plate, the grouting holes of the cover plate overlap with the grouting holes on the casting top plate, and the interior of the box covering plate is connected with the interior of the casting top plate.

[0013] Furthermore, a plurality of groups of rollers are embedded along the length direction of the middle portion of the U-shaped mounting plate and the surface of the side plate support plate close to the adjacent cast side plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model strengthens the vertical supporting force of the inner frame through the L-shaped supporting plate and the box covering plate, and strengthens the lateral supporting force of the inner frame through the cooperation of the pull rod, the sliding sleeve, the spring and the inclined surfaces on both sides of the inverted trapezoidal box covering plate, thereby improving the inner frame's load on backfill soil and road surface load, and preventing the sudden settlement of the road surface on the side of the box culvert.

[0016] 2. The utility model realizes the casting, movement and installation of the inner frame at the construction site by making the inner frame detachably connected to the U-shaped mounting plate and the outer supporting mechanism and utilizing the cooperation of rollers. At the same time, the outer supporting mechanism can be used to timely adjust the inclination of the casting side plate according to the slope of the culvert side, thereby improving the adaptability of the utility model.

[0017] 3. The utility model provides pulling force on the inside of the casting side plate and the lateral support plate when adjusting the inclination of the casting side plate through the cooperation of the L-shaped support plate, the pull rod, the sliding sleeve and the spring, and uses the electric push rod to provide supporting force on the outside. The pulling and supporting on the inside and the outside prevent the casting side plate and the side plate support plate from overturning during adjustment, thereby improving the construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the connection between the inner frame and the box cover plate, mounting plate and base when placed in the culvert.

[0020] Figure 3 It is a schematic diagram of the overall structure of the utility model when the side panels are tilted during casting.

[0021] Figure 4 It is a structural schematic diagram of the connection between the external support mechanism, the mounting plate and the base.

[0022] Figure 5 This is an exploded view of the inner frame, inner support structure, and box cover plate.

[0023] The reference numerals in the figure represent:

[0024] 1. Inner frame; 11. Casting bottom plate; 111. Tightening screw hole; 112. Guide rod; 12. Casting side plate; 121. Diagonal brace; 13. Casting top plate; 2. Inner support mechanism; 21. Support vertical plate; 22. Pull rod; 23. Sleeve; 24. Spring; 25. Sleeve fixing seat; 26. Tightening screw; 27. Support horizontal plate; 28. Guide groove; 3. Outer support mechanism; 31. Side plate support plate; 32. Electric push rod; 321. Cylinder fixing seat; 322. Piston fixing seat; 4. Box cover plate; 41. Receiving groove; 42. Travel groove; 43. Positioning bolt; 44. Nut; 45. Cover plate grouting hole; 5. Culvert; 51. Slope; 6. Base; 7. U-shaped mounting plate; 71. Mounting vertical plate; 72. Mounting horizontal plate; 8. Grouting hole; 9. Roller. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] See also Figure 1-5 A box culvert structure for alleviating side steep drop comprises an inner frame 1 formed by a cast bottom plate 11, two cast side plates 12 disposed on both sides of the cast bottom plate 11, and a cast top plate 13 disposed above the two cast side plates 12; the cast bottom plate 11 and the cast side plates 12, as well as the cast side plates 12 and the cast top plate 13 are all detachably connected, and the detachable connection method is bolt connection; an inner support mechanism 2 is arranged in the inner frame 1, the bottom of the inner support mechanism 2 is connected to the cast bottom plate 11, and the two sides of the inner support mechanism 2 are respectively connected to the adjacent cast side plates 12; an outer support mechanism 3 detachably connected to the two cast side plates 12 is arranged outside the inner frame 1; an inverted support mechanism 3 is fixedly connected to the top of the inner frame 1 Trapezoidal box cover plate 4; grouting holes 8 are provided on the casting bottom plate 11, casting side plates 12, casting top plate 13, and box cover plate 4; wherein, the two casting side plates 12 are adjusted to be parallel to the slopes 51 on both sides of the culvert 5 by the external support mechanism 3 detachably connected thereto, and during the adjustment process, the internal support mechanism 2 provides a pulling force to the two casting side plates 12 to prevent them from overturning. When the utility model is placed in the culvert 5, the internal support mechanism 2 can provide vertical and lateral support forces to the inner frame 1, and the inclined surfaces on both sides of the box cover plate 4 can provide a certain lateral support force to the backfill soil layer, and the cooperation between the internal support mechanism 2 and the box cover plate 4 can increase the load capacity of the inner frame 1 on the backfill soil layer.

[0027] Furthermore, a base 6 is provided on one side of the culvert 5, and the base 6 extends into the culvert 5. A U-shaped mounting plate 7 fixedly connected to the base 6 is provided in the middle part along its length direction. The casting bottom plate 11 is placed between two mounting vertical plates 71 of the U-shaped mounting plate 7 and is detachably connected to the mounting horizontal plate 72, and the detachable connection method is bolted; wherein, external support mechanisms 3 are provided on the outer sides of the two mounting vertical plates 71, and the two sides of the external support mechanisms 3 are respectively connected to the adjacent casting side plates 12 and the base 6.

[0028] Furthermore, each external support mechanism 3 includes a side panel support plate 31 and a row of electric push rods 32 arranged along the length direction of the cast side panel 12; the bottom of the side panel support plate 31 is placed above the adjacent mounting vertical plate 71 and is hinged to it by a hinge; the side of the side panel support plate 31 is detachably connected to the adjacent cast side panel 12, and the detachable connection is bolted; the cylinder end of each electric push rod 32 is provided with a cylinder fixing seat 321 hinged to it, and the cylinder fixing seat 321 is fixedly connected to the base 6; the piston end of each electric push rod 32 is provided with a piston fixing seat 322 hinged to it, and the piston fixing seat 322 is fixedly connected to the side of the side panel support plate 31.

[0029] Furthermore, the internal support mechanism 2 is an L-shaped support plate placed between the casting bottom plate 11 and the casting top plate 13. Both sides of the support vertical plate 21 of the L-shaped support plate protrude horizontally outward to form a plurality of tie rods 22 arranged at intervals. A sliding sleeve 23 is sleeved on the outer periphery of each tie rod 22. The tie rod 22 and the sliding sleeve 23 are connected by a spring 24. The other end of the sliding sleeve 23 is hinged to a sliding sleeve fixing seat 25 through a rotating shaft, and the other end of the sliding sleeve fixing seat 25 is fixedly connected to the adjacent casting side plate 12. The L-shaped support plate is fixedly connected to the casting bottom plate 11 by a tightening screw 26.

[0030] By hingedly connecting the side panel support plate 31 with the adjacent mounting vertical plate 71, the electric push rod 32 can conveniently adjust the inclination of the side panel support plate 31 and drive the connected casting side panel 12 to tilt. The cooperation of the L-shaped support plate, the pull rod 22, the sliding sleeve 23 and the spring 24 is used to provide pulling force for the casting side panel 12 and the side panel support plate 31 to prevent them from overturning. When the casting side panel 12 moves to the desired inclination, the side panel support plate 31 and the electric push rod 32 provide stable supporting force for the casting side panel 12 to stabilize the position of the casting side panel 12, so as to facilitate its installation, casting and solidification.

[0031] Furthermore, a plurality of fixing screw holes 111 are arranged at intervals along the length direction of the top surface of the casting base plate 11, and a plurality of pairs of guide rods 112 are symmetrically arranged on both sides of the fixing screw holes 111; a plurality of guide grooves 28 matching the guide rods 112 are formed inwardly on both sides of the supporting transverse plate 27 of the L-shaped supporting plate; each fixing screw 26 passes through the supporting vertical plate 21 and is threadedly connected with the adjacent fixing screw hole 111 to fix the L-shaped supporting plate to the casting base plate 11.

[0032] Furthermore, the bottom of the box covering plate 4 is concave along its length direction to form a receiving groove 41 for accommodating the casting top plate 13, and two groups of vertically penetrating strip-shaped travel grooves 42 are symmetrically arranged on the top surface of the box covering plate 4, and each travel groove 42 is provided with a positioning bolt 43. Each positioning bolt 43 passes through the box covering plate 4 and the casting top plate 13 and is respectively locked with a nut 44 to fix the box covering plate 4 on the casting top plate 13. At this time, the cover plate grouting hole 45 on the box covering plate 4 coincides with the grouting hole 8 on the casting top plate 13, and concrete can be injected into the casting top plate 13 and the box covering plate 4 in turn.

[0033] Furthermore, a plurality of groups of rollers 9 are embedded along the length direction of the middle portion of the U-shaped mounting plate 7 and the surface of the side plate support plate 31 close to the adjacent cast side plate 12, so as to facilitate the staff to move the inner frame 1 after demoulding along the length direction of the U-shaped mounting plate 7 into the culvert 5; the rollers 9 can cooperate with the jacking mechanism to move the inner frame 1.

[0034] Furthermore, each cast side plate 12 is fixedly connected with a plurality of groups of diagonal brace embedded parts along its length direction. When the inner frame 1 is placed in the culvert 5, each cast side plate 12 is fixedly connected with the base 6 by providing a diagonal brace 121 through the diagonal brace embedded parts, thereby improving the load capacity and stability of the inner frame 1.

[0035] The working principle of this utility model:

[0036] See also Figure 1-5 , a base 6 is cast on the construction ground on one side outside the culvert 5 and extended into the culvert 5, a U-shaped mounting plate 7 is welded in the middle of the top surface of the base 6 along its length direction, and a row of electric push rods 32 fixedly connected to the base 6 are arranged on both sides of the U-shaped mounting plate 7; the casting bottom plate 11 is placed between the two mounting vertical plates 71 of the U-shaped mounting plate 7, the casting bottom plate 11 is fixedly connected to the mounting horizontal plate 72, and concrete is poured into the casting bottom plate 11 through the grouting holes 8 of the casting bottom plate 11. After it is solidified, a side plate support plate 31 is vertically arranged above the two mounting vertical plates 71: the bottom of each side plate support plate 31 is hinged to the top of the adjacent mounting vertical plate 71 through a hinge, and the side of each side plate support plate 31 is fixedly connected to the adjacent row of electric push rods 32, and casting side plates 12 are arranged on both sides of the casting bottom plate 11, so that each casting side plate 12 is connected to the adjacent side plate support plate 31 through bolts.

[0037] Place the L-shaped support plate above the casting base plate 11, so that the guide rods 112 on the casting base plate 11 cooperate with the corresponding guide grooves 28 on the supporting cross plate 27, guide and position the L-shaped support plate, and lock the fixing screws 26 with the fixing screw holes 111 on the adjacent casting base plate 11 to fix the L-shaped support plate to the casting base plate 11. At this time, the pull rod 22 and the sliding sleeve 23 are parallel to the ground, and the sliding sleeve fixing seat 25 is fixedly connected to the adjacent casting side plate 12.

[0038] Drive the electric push rod 32 to make the side plate support plate 31 drive the casting side plate 12 connected thereto to be adjusted to be parallel to the inclined surface of the adjacent slope 51, and then fix the bottom of the casting side plate 12 to the casting bottom plate 11 by bolts to stabilize the position of the casting side plate 12.

[0039] After concrete is poured into the casting side plates 12 through the grouting holes 8 on the casting side plates 12 and solidified, a casting top plate 13 is arranged above the two casting side plates 12 and the L-shaped support plate, so that the two sides of the bottom surface of the casting top plate 13 and the top surfaces of the adjacent casting side plates 12, and the middle part of the bottom surface of the casting top plate 13 and the top surface of the supporting vertical plate 21 are connected by welding. At this time, the casting top plate 13, the two casting side plates 12, and the casting bottom plate 11 form an inner frame 1.

[0040] A box covering plate 4 is arranged above the casting top plate 13, so that the casting top plate 13 is placed in the receiving groove 41 of the box covering plate 4, and each positioning bolt 43 is sequentially passed through the adjacent travel groove 42, the casting top plate 13 and the nut 44 to be locked, so as to fix the box covering plate 4 with the casting top plate 13. At this time, the grouting hole 45 of the cover plate overlaps with the grouting hole 8 on the casting top plate 13, and the interior of the box covering plate 4 is connected with the interior of the casting top plate 13. Concrete can be poured into the casting top plate 13 and the box covering plate 4 in turn, and demoulding is performed after it is solidified and formed: the casting side plates 12 are separated from the adjacent side plate support plates 31, and the casting bottom plate 11 is separated from the installation cross plate 72; after demoulding, the inner frame 1 and the box covering plate 4 connected thereto are moved on the U-shaped installation plate 7 to the culvert 5 by the roller 9, and finally the diagonal brace 121 is arranged by the diagonal brace embedded part to improve the load capacity and stability of the inner frame 1.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A box culvert structure for relieving steep side drops, comprising an inner frame (1) formed by connecting a casting bottom plate (11), two casting side plates (12) disposed on both sides of the casting bottom plate (11), and a casting top plate (13) disposed above the two casting side plates (12); the casting bottom plate (11) and the casting side plates (12), and the casting side plates (12) and the casting top plate (13) are all detachably connected, characterized in that: The inner frame (1) is provided with an inner support mechanism (2) for providing vertical and lateral support for the backfill soil layer of the culvert (5); the bottom of the inner support mechanism (2) is connected to the casting bottom plate (11), and the two sides of the inner support mechanism (2) are respectively connected to the adjacent casting side plates (12); the two opposite sides of the two casting side plates (12) are detachably connected to the outer support mechanism (3), and the inclination of the casting side plates (12) is adjusted by the outer support mechanism (3); the top of the casting top plate (13) is fixedly connected to an inverted trapezoidal box cover plate (4).

2. A box culvert structure for alleviating side steep drop according to claim 1, characterized in that: A base (6) is provided on one side of the culvert (5), the base (6) extending into the culvert (5), and a U-shaped mounting plate (7) fixedly connected to the base (6) is provided in the middle of the base (6) along its length direction; the casting bottom plate (11) is placed between two mounting vertical plates (71) of the U-shaped mounting plate (7) and is detachably connected to the mounting horizontal plate (72); the external support mechanism (3) is placed outside the U-shaped mounting plate (7) and is fixedly connected to the base (6).

3. A box culvert structure for alleviating side steep drop according to claim 2, characterized in that: Each of the external support mechanisms (3) comprises a side panel support plate (31) and a row of electric push rods (32) arranged along the length direction of the cast side panel (12); the bottom of the side panel support plate (31) is placed above the adjacent mounting vertical plate (71) and is hinged thereto by a hinge, and the side of the side panel support plate (31) is detachably connected to the adjacent casting side panel (12); the cylinder end of each of the electric push rods (32) is provided with a cylinder fixing seat (321) hinged thereto, and the cylinder fixing seat (321) is fixedly connected to the base (6); the piston end of each of the electric push rods (32) is provided with a piston fixing seat (322) hinged thereto, and the piston fixing seat (322) is fixedly connected to the side of the side panel support plate (31).

4. A box culvert structure for alleviating side steep drop according to claim 1 or 3, characterized in that: The inner support mechanism (2) is an L-shaped support plate placed between the casting bottom plate (11) and the casting top plate (13); both sides of the support vertical plate (21) of the L-shaped support plate protrude horizontally outward to form a plurality of tie rods (22) arranged at intervals, and each tie rod (22) is sleeved with a sliding sleeve (23) on the outer periphery, and the tie rod (22) and the sliding sleeve (23) are connected by a spring (24); the other end of the sliding sleeve (23) is hinged with a sliding sleeve fixing seat (25) through a rotating shaft, and the other end of the sliding sleeve fixing seat (25) is fixedly connected to the adjacent casting side plate (12); the L-shaped support plate is fixedly connected to the casting bottom plate (11) by a fixing screw (26).

5. A box culvert structure for alleviating side steep drop according to claim 4, characterized in that: The top surface of the casting bottom plate (11) is provided with a plurality of fixing screw holes (111) at intervals along its length direction, and a plurality of pairs of guide rods (112) are symmetrically provided on both sides of the fixing screw holes (111); the supporting transverse plate (27) of the L-shaped supporting plate is respectively concave on both sides to form a plurality of guide grooves (28) adapted to the guide rods (112); each fixing screw (26) passes through the supporting vertical plate (21) and is threadedly connected to an adjacent fixing screw hole (111) to fix the L-shaped supporting plate to the casting bottom plate (11).

6. A box culvert structure for alleviating side steep drop according to claim 5, characterized in that: The bottom of the box cover plate (4) is concave inward along its length direction to form a receiving groove (41) for receiving the casting top plate (13); two groups of vertically penetrating strip-shaped travel grooves (42) are symmetrically arranged on the top surface of the box cover plate (4), and each travel groove (42) is provided with a positioning bolt (43), and each positioning bolt (43) is respectively locked with a nut (44) after passing through the box cover plate (4) and the casting top plate (13); and the box cover plate (4) is provided with a cover plate grouting hole (45) that is vertically penetrating.

7. A box culvert structure for alleviating lateral steep drop according to claim 6, characterized in that: The casting bottom plate (11), the casting side plate (12) and the casting top plate (13) are all provided with grouting holes (8); when the box cover plate (4) is connected to the casting top plate (13), the cover plate grouting holes (45) overlap with the grouting holes (8) on the casting top plate (13), and the interior of the box cover plate (4) is connected to the interior of the casting top plate (13).

8. A box culvert structure for alleviating side steep drop according to claim 3, characterized in that: A plurality of groups of rollers (9) are embedded in the middle of the U-shaped mounting plate (7) and on the surface of the side plate support plate (31) close to the adjacent casting side plate (12) along the length direction thereof.

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