CN215486079U

CN215486079U - Roadbed supporting device based on incremental launching box culvert

Info

Publication number: CN215486079U
Application number: CN202122303125.XU
Authority: CN
Inventors: 李涛; 吕玉蓉; 王德富; 张峰; 王子龙; 郑国庆; 向鑫; 李永波; 范勇
Original assignee: Hubei Provincial Communications Planning And Design Institute Co ltd
Current assignee: Hubei Provincial Communications Planning And Design Institute Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-11
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a roadbed supporting device based on a pushing box culvert, which comprises an arch-shaped plate and a backup plate positioned below the arch-shaped plate, wherein the backup plate is provided with two backup plates respectively close to two ends of the arch-shaped plate, a positioning mechanism arranged on the arch-shaped plate and a supporting mechanism arranged on the backup plate; the positioning mechanism comprises positioning blocks, pillars, lower semicircular rings, lower connecting pieces, limiting rods, upper connecting pieces and upper semicircular rings, a group of positioning blocks are fixedly arranged on the outer walls of the arched plates close to the front side and the rear side of the arched plates respectively, and each positioning block is fixedly connected with one lower semicircular ring through one pillar; the supporting mechanism comprises threaded columns, supporting cones, a turntable and a poke rod, wherein two threaded columns are in threaded connection with each backup plate, and the two threaded columns are symmetrically arranged on the horizontal central axis of each backup plate. According to the utility model, the bearing strength of the pipe shed is greatly improved by supporting two sides of the pipe shed by using multi-point grab, so that the problem that two sides of the pipe shed are easy to damage and collapse is avoided.

Description

Roadbed supporting device based on incremental launching box culvert

Technical Field

The utility model relates to the technical field of roadbed supporting, in particular to a roadbed supporting device based on a pushing box culvert.

Background

The box culvert refers to a culvert built by reinforced concrete box pipe joints. The box culvert is composed of one or more square or rectangular sections, generally made of reinforced concrete or masonry, and when a newly-built road must pass through a railway or a road bed, a box culvert jacking construction technology can be adopted after necessary reinforcement measures are taken on an original route.

In the box culvert jacking construction process, a pipe shed method is often applied, the pipe shed method is also called a pipe shed advanced support method, and is a new technology for tunneling in weak surrounding rock, and the concrete mode is as follows: the method comprises the following steps that a thick-wall steel pipe is driven into the periphery of the upper half section design of an excavation working face before excavation and tunneling, grouting holes are formed in the steel pipe, constructors drill holes in an unearthed stratum according to a set direction, then pipes erected on an arch frame are inserted into the drilling holes, then grouting is conducted in the steel pipe, and injected grout is extruded into the stratum through the grouting holes in the steel pipe to complete reinforcement; excavation is more stable under the protection of a temporary bearing shed constructed in the stratum.

The roadbed supporting device in the prior art only strengthens the supporting parts at the upper end and the lower end of the pipe shed, the side edge of the roadbed supporting device has a common fixed supporting effect, the two sides of the pipe shed are low in strength and easy to damage and collapse, the fixing mode for laying steel pipes is not flexible enough, the size range of the applicable steel pipes is small, and therefore the roadbed supporting device based on the pushing box culvert is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a roadbed supporting device based on a pushing box culvert, which can effectively solve the problems that in the prior art, the roadbed supporting device only strengthens the supporting parts at the upper end and the lower end of a pipe shed, the side fixing and supporting effects are general, the two sides of the pipe shed are low in strength and easy to damage and collapse, the fixing mode for laying steel pipes is not flexible enough, and the size range of the applicable steel pipes is small.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a roadbed supporting device based on a pushing box culvert comprises an arch-shaped plate and a backup plate positioned below the arch-shaped plate, wherein the backup plate is provided with two backup plates which are respectively close to two ends of the arch-shaped plate, a positioning mechanism arranged on the arch-shaped plate and a supporting mechanism arranged on the backup plate, and one side surface of each backup plate close to a vertical central axis of the arch-shaped plate is provided with two containing grooves;

the positioning mechanism comprises a positioning block, a support column, a lower semicircular ring, a lower connecting sheet, a limiting rod, an upper connecting sheet and an upper semicircular ring, a group of positioning blocks are respectively and fixedly arranged on the outer walls of the arch-shaped plate close to the front side and the rear side of the arch-shaped plate, every six positioning blocks form a group, and six positioning blocks are arranged along the side line of the arch-shaped plate in an equidistant circumferential array, each positioning block is fixedly connected with a lower semicircular ring through a pillar, both ends of each lower semicircular ring are respectively and fixedly provided with a lower connecting sheet, each lower connecting sheet is movably connected with a limiting rod, each limiting rod is movably connected with an upper connecting sheet, the upper connecting sheet is positioned above the lower connecting sheet, an upper semicircular ring is fixedly arranged between every two upper connecting sheets positioned on the same positioning block, and the upper connecting sheet and the lower connecting sheet can slide and lift on the limiting rod;

the supporting mechanism comprises a threaded column, a supporting cone, a rotary table and a poking rod, wherein each backup plate is provided with two threaded columns in a threaded connection mode, the threaded columns are symmetrically arranged on a horizontal axis of the backup plate and are arranged in a symmetrical mode, each threaded column is arranged at one end of the outer side of the backup plate, one supporting cone is fixedly arranged at one end of the outer side of the backup plate, each threaded column is arranged at one end of the inner side of the backup plate, a rotary table and four poking rods are fixedly arranged at one end of the inner side of the backup plate, the positions of the storage grooves and the positions of the threaded columns are matched, the sizes of the storage grooves and the sizes of the rotary table and the poking rods are matched, the rotary table is mainly fixed with the poking rod, and the poking rod is mainly convenient for people to rotate the threaded columns.

Preferably, the arch plate both ends are fixed respectively and are provided with a connection slat, every the backup plate top is connected with a connection slat bottom fixed connection, connects the main backup plate that conveniently fixes of slat.

Preferably, a reinforcing transverse plate is fixedly arranged between the two backup plates, two groups of supporting blocks are fixedly arranged on the upper surface of the reinforcing transverse plate, the two groups of supporting blocks are symmetrically arranged on the horizontal central axis of the reinforcing transverse plate, every three supporting blocks form a group, and the supporting blocks mainly fix the reinforcing columns.

Preferably, each supporting block upper surface and the inner wall of the arch plate are fixedly connected through a reinforcing column, and the reinforcing column mainly reinforces the strength of the arch plate.

Preferably, every two stabilizer blades of backup plate bottom fixedly connected with, and two stabilizer blades close on backup plate front and back both sides surface respectively, and the ground depths is mainly buried underground to the stabilizer blade and is supported the backup plate.

Preferably, a grounding disc is fixedly arranged at the bottom end of each support leg, and the grounding disc mainly increases the grounding area of the support leg.

Compared with the prior art, the roadbed supporting device based on the pushing box culvert has the following beneficial effects that:

1. according to the utility model, the lower semicircular ring is fixed by arranging the positioning block on the outer wall of the arch plate and matching with the supporting column, the lower connecting pieces are arranged at two ends of the lower semicircular ring and can match with the limiting rod and the upper connecting piece to support the upper semicircular ring, the grouting steel pipe is inserted between the two semicircular rings on the positioning blocks which correspond to the front side and the rear side of the arch plate one by one, so that the equidistant installation and limitation of the steel pipe can be completed, the upper connecting piece and the lower connecting piece can slide on the limiting rod to lift and adjust the distance between the two semicircular rings to adapt to the size of the grouting steel pipe, a worker can adjust the size of the grouting steel pipe according to the size of the pipe shed conveniently, and slurry can automatically flow out from the grouting holes in the steel pipe to fill gaps in rammed strata.

2. According to the pipe shed supporting device, the backup plate is arranged to support the two sides of the pipe shed and prevent soil from entering the pipe shed, the poking rod drives the rotary disc to rotate so as to drive the threaded columns to rotate on the backup plate and to be matched with the supporting cones to rotate and be inserted into the depths of strata on the two sides of the pipe shed to complete supporting and locking of the two sides of the pipe shed, the mode that the two sides of the pipe shed are supported by too many points is utilized to greatly improve the bearing strength, the problem that the two sides of the pipe shed are easy to damage and collapse is avoided, the storage grooves in the backup plate can store the rotary disc and the poking rod, and the trafficability of the internal space of the pipe shed is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a roadbed supporting device based on a pushing box culvert of the utility model;

fig. 2 is a schematic top view of the roadbed supporting device based on the pushing box culvert of the present invention;

fig. 3 is a schematic front view of a roadbed supporting device based on a pushing box culvert;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

fig. 5 is a schematic side view of the roadbed supporting device based on the pushing box culvert.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an arch plate; 2. a backup plate; 3. positioning blocks; 4. a pillar; 5. a lower semicircular ring; 6. a lower connecting sheet; 7. a limiting rod; 8. an upper connecting sheet; 9. an upper semicircular ring; 10. a threaded post; 11. a support cone; 12. a turntable; 13. a poke rod; 14. a receiving groove; 15. connecting the ribbon boards; 16. reinforcing the transverse plate; 17. a support block; 18. a reinforcement column; 19. a support leg; 20. a ground disk.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model is a roadbed supporting device based on a pushing box culvert, which comprises an arch plate 1 and a backup plate 2 positioned below the arch plate 1, wherein the backup plate 2 is provided with two backup plates respectively close to two ends of the arch plate 1, a positioning mechanism arranged on the arch plate 1 and a supporting mechanism arranged on the backup plate 2, and one side surface of each backup plate 2 close to a vertical central axis of the arch plate 1 is provided with two accommodating grooves 14;

the positioning mechanism comprises positioning blocks 3, a pillar 4, a lower semicircular ring 5, a lower connecting sheet 6, a limiting rod 7, an upper connecting sheet 8 and an upper semicircular ring 9, a group of positioning blocks 3 are respectively and fixedly arranged on the outer walls of the arched plate 1 close to the front side and the rear side of the arched plate, every six positioning blocks 3 form a group, and six positioning blocks 3 are arranged in an equidistant circumferential array along the side line of the arch-shaped plate 1, each positioning block 3 is fixedly connected with a lower semicircular ring 5 through a pillar 4, both ends of each lower semicircular ring 5 are respectively and fixedly provided with a lower connecting sheet 6, each lower connecting sheet 6 is movably connected with a limiting rod 7, each limiting rod 7 is movably connected with an upper connecting sheet 8, the upper connecting sheet 8 is positioned above the lower connecting sheet 6, an upper semicircular ring 9 is fixedly arranged between every two upper connecting sheets 8 positioned on the same positioning block 3, and the upper connecting sheet 8 and the lower connecting sheet 6 can slide and lift on the limiting rod 7;

the supporting mechanism includes screw thread post 10, support circular cone 11, carousel 12 and poker rod 13, threaded connection has two screw thread posts 10 on every backup plate 2, and two screw thread posts 10 are the symmetry and arrange on backup plate 2 horizontal axis, the one end that every screw thread post 10 is located the backup plate 2 outside is fixed to be provided with one and supports circular cone 11, the one end that every screw thread post 10 is located backup plate 2 inboard is fixed to be provided with a carousel 12, every 12 side equidistance circumference runners of carousel have four poker rods 13, accomodate the position of groove 14 and the position looks adaptation of screw thread post 10, accomodate the size of groove 14 and the size looks adaptation of carousel 12 and poker rod 13, carousel 12 mainly fixes poker rod 13, poker rod 13 mainly makes things convenient for personnel to rotate screw thread post 10.

Furthermore, the two ends of the arched plate 1 are respectively and fixedly provided with a connecting strip plate 15, the top end of each backup plate 2 is fixedly connected with the bottom end of one connecting strip plate 15, and the connecting strip plates 15 are mainly convenient for fixing the backup plates 2.

Further, a reinforcing transverse plate 16 is fixedly arranged between the two backup plates 2, two groups of supporting blocks 17 are fixedly arranged on the upper surface of the reinforcing transverse plate 16, the two groups of supporting blocks 17 are symmetrically arranged on the horizontal central axis of the reinforcing transverse plate 16, every three supporting blocks 17 form a group, and the supporting blocks 17 mainly fix reinforcing columns 18.

Furthermore, the upper surface of each supporting block 17 is fixedly connected with the inner wall of the arch board 1 through a reinforcing column 18, and the reinforcing column 18 mainly reinforces the strength of the arch board 1.

Further, two stabilizer blades 19 of every backup plate 2 bottom fixedly connected with, and two stabilizer blades 19 close on backup plate 2 both sides surface around respectively, and backup plate 2 is supported to stabilizer blade 19 mainly buries ground depths underground.

Further, a grounding disc 20 is fixedly arranged at the bottom end of each support leg 19, and the grounding disc 20 mainly increases the grounding area of the support leg 19.

The working principle of the utility model is as follows:

when a person uses the device, the size of a grouting steel pipe is selected according to the size of a pipe shed, the grouting steel pipe is inserted between an upper semicircular ring 9 and a lower semicircular ring 5, an upper connecting sheet 8 and a lower connecting sheet 6 are extruded by the steel pipe to slide on a limiting rod 7 to lift and adjust the distance between the two semicircular rings to adapt to the size of the grouting steel pipe, a support leg 19 and a grounding disc 20 are buried in the deep ground to complete bottom support of the pipe shed, a support block 17 on a reinforcing transverse plate 16 is matched with a reinforcing column 18 to carry out top reinforcing support on the inner wall of the pipe shed, slurry is injected into the steel pipe, the slurry is extruded from a material injection hole on the steel pipe to flow out to fill gaps at each position and enter the deep ground to complete tamping to further reinforce the top pipe shed, the person rotates a poking rod 13, the turntable 12 drives a threaded column 10 to rotate, a support cone 11 is driven to insert the threaded column 10 into the ground to complete ground grabbing locking support on the two sides of the pipe shed to increase the strength of the pipe shed, the poke rod 13 and the rotary disc 12 finally enter the containing groove 14 to complete the containing so as to ensure the inner space of the pipe shed.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The roadbed supporting device based on the pushing box culvert is characterized by comprising an arch-shaped plate (1) and a backup plate (2) positioned below the arch-shaped plate (1), wherein the backup plate (2) is provided with two positioning mechanisms and a supporting mechanism, the two positioning mechanisms are respectively close to two ends of the arch-shaped plate (1), the positioning mechanisms are arranged on the arch-shaped plate (1), the supporting mechanism is arranged on the backup plate (2), and two accommodating grooves (14) are formed in the surface of one side, close to a vertical central axis of the arch-shaped plate (1), of each backup plate (2);

the positioning mechanism comprises positioning blocks (3), pillars (4), lower semicircular rings (5), lower connecting sheets (6), limiting rods (7), upper connecting sheets (8) and upper semicircular rings (9), wherein the outer walls of the front and rear sides of the arch-shaped plate (1) are respectively fixedly provided with a group of positioning blocks (3), every six positioning blocks (3) are in a group, the six positioning blocks (3) are arranged in an equidistant circumferential array along the side line of the arch-shaped plate (1), each positioning block (3) is fixedly connected with one lower semicircular ring (5) through one pillar (4), two ends of each lower semicircular ring (5) are respectively and fixedly provided with one lower connecting sheet (6), each lower connecting sheet (6) is movably connected with one limiting rod (7), each limiting rod (7) is movably connected with one upper connecting sheet (8), and the upper connecting sheet (8) is positioned above the lower connecting sheet (6), an upper semicircular ring (9) is fixedly arranged between every two upper connecting sheets (8) positioned on the same positioning block (3);

supporting mechanism includes screw thread post (10), support circular cone (11), carousel (12) and poker rod (13), every threaded connection has two screw thread posts (10) on backup plate (2), and two screw thread post (10) are the symmetry on backup plate (2) horizontal axis and arrange, every screw thread post (10) are located one fixed support circular cone (11) that is provided with of one in backup plate (2) outside, every screw thread post (10) are located backup plate (2) inboard one end is fixed and is provided with one carousel (12), every carousel (12) week side equidistance circumference runner has four poker rods (13), accomodate the position of groove (14) and the position looks adaptation of screw thread post (10), accomodate the size of groove (14) and the size looks adaptation of carousel (12) and poker rod (13).

2. The roadbed supporting device based on the pushing box culvert of claim 1, wherein the roadbed supporting device comprises: the arch plate is characterized in that two ends of the arch plate (1) are respectively and fixedly provided with a connecting strip plate (15), and the top end of each backup plate (2) is fixedly connected with the bottom end of one connecting strip plate (15).

3. The roadbed supporting device based on the pushing box culvert of claim 1, wherein the roadbed supporting device comprises: a reinforcing transverse plate (16) is fixedly arranged between the two backup plates (2), two groups of supporting blocks (17) are fixedly arranged on the upper surface of the reinforcing transverse plate (16), the two groups of supporting blocks (17) are symmetrically arranged on the horizontal central axis of the reinforcing transverse plate (16), and each three supporting block (17) is a group.

4. The roadbed supporting device based on the pushing box culvert of claim 3, wherein the roadbed supporting device comprises: the upper surface of each supporting block (17) is fixedly connected with the inner wall of the arch plate (1) through a reinforcing column (18).

5. The roadbed supporting device based on the pushing box culvert of claim 1, wherein the roadbed supporting device comprises: every two stabilizer blades (19) of backup plate (2) bottom fixedly connected with, and two stabilizer blades (19) are close to backup plate (2) front and back both sides surface respectively.

6. The roadbed supporting device based on the pushing box culvert of claim 5, wherein the roadbed supporting device comprises: the bottom end of each supporting leg (19) is fixedly provided with a grounding disc (20).