CN217781606U

CN217781606U - Composite roadbed extension structure

Info

Publication number: CN217781606U
Application number: CN202221963196.0U
Authority: CN
Inventors: 胡春雷; 张贺伟; 张达操; 康宇
Original assignee: Third Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-11
Anticipated expiration: 2032-07-26

Abstract

The utility model belongs to the technical field of highway engineering device technique and specifically relates to a compound road bed enlargement structure is related to, and it includes old road bed and new road bed, new road bed sets up one side of old road bed, new road bed includes the basic unit, the basic unit is including consolidating steelframe and telescopic stock, consolidate the steelframe orientation the lateral wall of old road bed with old road bed offsets, the stock is connected consolidate the steelframe orientation on the lateral wall of old road bed, old road bed orientation be provided with on the lateral wall of steelframe with the stock corresponds the connecting hole that sets up, it keeps away from to consolidate the steelframe be provided with the slot on the lateral wall of old road bed, the one end of stock is run through consolidate the lateral wall and be close to consolidate the lateral wall of old road bed and insert and establish in the connecting hole, the other end with the steelframe is pegged graft, the effect that this application has.

Description

Composite roadbed extension structure

Technical Field

The application relates to the technical field of highway engineering devices, in particular to a composite roadbed extension structure.

Background

With the rapid development of economic society and the increase of road traffic, the number of highway transportation requirements in China is increased year by year, and in order to improve the road traffic capacity, a road reconstruction and extension project is usually carried out, and new roadbeds are extended on two sides of the roadbeds on the basis of the original roadbeds.

The Chinese patent with the publication number of CN215252039U is a composite roadbed structure, which comprises an original roadbed, a protective wall foundation, an extension foundation bed and a metal net; a plurality of stages of steps which sink gradually are arranged on the original roadbed along the sinking direction; the protection wall is arranged on the original roadbed and fixed on the protection wall base and arranged on one side of the sinking direction of the original roadbed; anchoring parts are arranged on each stage of the original roadbed, the extension foundation bed is fully arranged between the original roadbed and the protection wall, and the extension foundation bed is connected with the anchoring parts; the metal nets are embedded into the extension foundation bed along the horizontal direction, and impermeable geomembranes are respectively arranged on the top surface and the bottom surface of the extension foundation bed. The composite roadbed structure has the advantages that the roadbed structure is improved, the connection strength between new roads and old roads is enhanced, and the use performance of the expanded road is improved.

In the technical scheme, the anchoring part is arranged on the step, and the connection between the extension foundation bed and the anchoring part is only limited to the part close to the extension foundation bed and the step, so that the stability between the extension foundation bed and the original roadbed is weak.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability of road bed extension, this application provides a compound road bed extension structure.

The application provides a compound road bed extension structure adopts following technical scheme:

the utility model provides a compound road bed enlargement structure, includes old road bed and new road bed, new road bed sets up one side of old road bed, new road bed includes the basic unit, the basic unit is including consolidating steelframe and telescopic stock, consolidate the steelframe orientation the lateral wall of old road bed with old road bed offsets, the stock is connected consolidate the steelframe orientation on the lateral wall of old road bed, old road bed orientation be provided with on the lateral wall of steelframe with the connecting hole that the stock corresponds the setting, it keeps away from to consolidate the steelframe be provided with the slot on the lateral wall of old road bed, the one end of stock is run through it is close to consolidate the steelframe the lateral wall of old road bed inserts and establishes in the connecting hole, the other end with the slot is pegged graft, the concrete has been pour between the reinforcement steelframe.

Through adopting above-mentioned technical scheme, through setting up the reinforcement steelframe, insert the stock and establish in the connecting hole, realize being connected of steelframe and old roadbed, the stock runs through the reinforcement steelframe, then pours the concrete between the steelframe to the stability of being connected between new road bed and the old roadbed has been improved.

Optionally, a connecting groove is formed in a side wall of the connecting hole, the aperture of the connecting hole is larger than the diameter of the end face of the anchor rod, and a filler is filled between the connecting hole and the anchor rod.

Through adopting above-mentioned technical scheme, fill the filler between connecting hole and stock, the filler is located the spread groove, between connecting hole and the stock to the stability of being connected between stock and the old roadbed has been improved.

Optionally, a reinforcing hole is formed in the side wall of the anchor rod, and when the anchor rod is inserted into the connecting hole, the reinforcing hole is located in the connecting hole.

Through adopting above-mentioned technical scheme, the filler is filled downtheholely at the reinforcement, has improved the stability of being connected between stock and the old roadbed.

Optionally, the side wall of the old roadbed facing the new roadbed is provided with a step shape.

By adopting the technical scheme, the side wall formed by connecting the old roadbed and the new roadbed is in the step shape, so that the contact surface between the new roadbed and the old roadbed is improved, the part of the old roadbed below the old roadbed in the vertical direction provides support for the new roadbed, and the possibility of deformation of the new roadbed in the use process is reduced.

Optionally, the concrete poured between the reinforced steel frames is pervious concrete.

Through adopting above-mentioned technical scheme, the concrete that permeates water pours between the reinforcement steelframe, has improved the effect of permeating water of new road bed, has reduced the ponding on the new road bed.

Optionally, new road bed still includes the drainage blanket, the drainage blanket sets up along vertical direction the below of basic unit, the drainage blanket includes the rubble layer and the soft pipe of permeating water, be provided with the mounting groove that is used for installing the soft pipe of permeating water in the rubble layer, the soft pipe of permeating water passes through the mounting groove sets up in the rubble layer, the tip of the soft pipe of permeating water runs through the rubble layer.

Through adopting above-mentioned technical scheme, the ponding on road surface flows to the metalling through the basic unit, discharges through the pipe that permeates water of soft formula to be convenient for the drainage of new road bed.

Optionally, the reinforcing steel frames are arranged in a plurality of vertical directions, and the adjacent reinforcing steel frames are detachably connected.

Through adopting above-mentioned technical scheme, a plurality of reinforcement steelframes can be dismantled and link together, are convenient for consolidate the prefabrication and the transport of steelframe to be convenient for install the reinforcement steelframe.

Optionally, the reinforced steel frame is connected with a connecting net.

Through adopting above-mentioned technical scheme, to the setting of connecting network behind the concreting between the reinforcement steelframe, improved the structural strength who pours the concrete between the reinforcement steelframe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connection between the steel frame and the old roadbed is realized by arranging the reinforced steel frame and inserting the anchor rods into the connecting holes, the anchor rods penetrate through the reinforced steel frame, and then concrete is poured between the steel frames, so that the connection stability between the new roadbed and the old roadbed is improved;

2. the filler is filled between the connecting hole and the anchor rod and is positioned in the connecting groove and between the connecting hole and the anchor rod, so that the stability of connection between the anchor rod and the old roadbed is improved;

3. the filler is filled in the reinforcing hole, so that the connection stability between the anchor rod and the old roadbed is improved.

Drawings

Fig. 1 is a schematic view of an overall structure for embodying a composite roadbed extension structure;

FIG. 2 is a schematic view for showing a positional relationship between the horizontal plate and the vertical plate;

FIG. 3 is an enlarged view of the portion A for showing the positional relationship between the water permeable hose and the tubular keel frame in FIG. 2;

FIG. 4 is an enlarged view of a portion B for showing a positional relationship between the slide bar and the slide hole in FIG. 2;

FIG. 5 is an enlarged view of the portion C for showing the positional relationship between the connection hole and the insertion rod in FIG. 2;

FIG. 6 is an enlarged view of a portion D showing the positional relationship between the dovetail groove and the dovetail block in FIG. 2.

Description of reference numerals:

1. old roadbed; 2. a new roadbed; 3. a base layer; 4. a water permeable layer; 5. a crushed stone layer; 6. a flexible water permeable pipe; 7. a tubular keel frame; 8. mounting grooves; 9. an adjusting block; 10. a transverse plate; 11. a vertical plate; 12. bracing; 13. connecting a net; 14. a screw; 15. a connecting rod; 16. a plug rod; 17. a slide bar; 18. a slide hole; 19. a limiting groove; 20. a limiting block; 21. connecting holes; 22. reinforcing holes; 23. connecting grooves; 24. a dovetail groove; 25. a dovetail block.

Detailed Description

The embodiment of the application discloses compound road bed enlargement structure.

Referring to fig. 1, a composite roadbed extension structure comprises an old roadbed 1 and a new roadbed 2, wherein the new roadbed 2 is arranged on one side of the old roadbed 1, and the side wall of the old roadbed 1 facing the new roadbed 2 is arranged to be in a step shape.

Referring to fig. 1, fig. 2 and fig. 3, new road bed 2 includes basic unit 3 and permeable bed 4, along the below that vertical direction permeable bed 4 is located basic unit 3, permeable bed 4 includes metalling 5 and soft formula permeable pipe 6, be provided with a plurality of mounting grooves 8 that are used for installing soft formula permeable pipe 6 in metalling 5, the tubulose keel frame 7 is connected in metalling 5, tubulose keel frame 7 is connected in mounting groove 8, soft formula permeable pipe 6 sets up in metalling 5 through tubulose keel frame 7, the tip of soft formula permeable pipe 6 runs through metalling 5.

Referring to fig. 2, the base layer 3 includes a reinforcing steel frame, an anchor rod corresponding to the reinforcing steel frame, and concrete poured between the reinforcing steel frames, and the concrete poured between the reinforcing steel frames and the anchor rod is permeable concrete. Consolidate the steelframe and be provided with a plurality ofly along vertical direction, consolidate the steelframe and include the crossbearer, riser 11 and bracing 12, the crossbearer, riser 11 all sets up to the grid board, the crossbearer is provided with two along vertical direction, two crossbearers set up relatively, riser 11 connects the both ends at the crossbearer, riser 11 is relative and be connected with the lateral wall that the crossbearer is relative with old way base 1 towards the lateral wall of basic unit 3, bracing 12 is connected between the crossbearer, be connected with connecting network 13 between bracing 12, connecting network 13 is the steel mesh, the crossbearer includes two diaphragms 10, be connected with screw rod 14 on the lateral wall of diaphragm 10 mutual orientation, be provided with regulating block 9 between two screw rods 14, the tip of regulating block 9 is provided with the screw hole, the rotation of two screw holes is opposite, screw rod 14 passes through screw hole and 9 threaded connection of regulating block.

Referring to fig. 2 and 4, the stock includes connecting rod 15 and peg graft pole 16, the one end threaded connection of connecting rod 15 is on keeping away from the riser 11 of old road bed 1, the end connection of connecting rod 15 has slide bar 17, peg graft pole 16 rotates to be connected on being close to the riser 11 that old road bed 1 set up and runs through riser 11, peg graft pole 16 keeps away from the tip of old road bed 1 and is provided with slide opening 18, slide bar 17 inserts and establishes in slide opening 18, be provided with spacing groove 19 on the lateral wall of slide opening 18, the end connection that peg graft pole 16 was kept away from to slide bar 17 has stopper 20, stopper 20 is located spacing groove 19 and with spacing groove 19 sliding fit.

Referring to fig. 2 and 5, a vertical plate 11 facing the old roadbed 1 in the reinforced steel frame abuts against the old roadbed 1, a connecting hole 21 corresponding to the insertion rod 16 is formed in a side wall, facing the steel frame, of the old roadbed 1, the connecting hole 21 is a threaded hole, the insertion rod 16 is inserted into the connecting hole 21, the aperture of the connecting hole 21 is larger than the diameter of the end face of the insertion rod 16, a reinforcing hole 22 is formed in the side wall of the insertion rod 16, the reinforcing hole 22 penetrates through the insertion rod 16, when the insertion rod 16 is inserted into the connecting hole 21, the reinforcing hole 22 is located in the connecting hole 21, a filler is filled between the connecting hole 21 and the anchor rod, and the filler is C30 cement mortar in this embodiment.

Referring to fig. 2 and 6, adjacent reinforcing steel frames are detachably connected, in the same reinforcing steel frame, a connecting groove 23 and a dovetail groove 24 are arranged on a transverse plate 10 which is close to an old roadbed 1 and is located above in the vertical direction, the dovetail groove 24 is arranged along the axis of a screw 14, the connecting groove 23 is communicated with the dovetail groove 24, the bottom of the connecting groove 23 is arranged opposite to the bottom of the dovetail groove 24, a dovetail block 25 is connected to the transverse plate 10 which is close to the old roadbed 1 and is located below in the vertical direction, the dovetail block 25 is in plug-in fit with the connecting groove 23, and the dovetail block 25 is in sliding fit with the dovetail groove 24.

The application of a compound road bed extension structure's implementation principle does:

set up the extension foundation ditch in old road bed 1's both sides to open the lateral wall of old road bed 1 and establish into the echelonment, expand new road bed 2 in the foundation ditch, lay rubble layer 5 bottom the foundation ditch, when pouring rubble layer 5, teach first half, then set up mounting groove 8 on half rubble layer 5, place tubulose keel frame 7 in mounting groove 8, place soft formula pipe 6 of permeating water in tubulose keel frame 7, then continue to pour rubble layer 5 again, thereby accomplish the setting of drainage blanket.

The adjusting block 9 is rotated, the screw 14 is far away from or close to and moves along the adjusting block 9, so that the distance between the transverse plates 10 is adjusted, a vertical plate 11 connected with an inserting rod 16 in the reinforced steel frame abuts against the side wall of the old roadbed 1, another vertical plate 11 abuts against the side wall of the expanded foundation pit, the inserting rod 16 is inserted into the connecting hole 21 through rotation, the connecting rod 15 is moved, the limiting block 20 moves in the limiting groove 19, the sliding rod 17 moves in the sliding hole 18, the connecting rod 15 is rotated, the connecting rod 15 is connected with the vertical plate 11 through a slot in a threaded manner, then filler is poured into the connecting hole 21, the anchor rod is inserted into the connecting hole 21, the steel frame is connected with the old roadbed 1, the anchor rod penetrates through the reinforced steel frame, then concrete is poured between the steel frames, and the stability of connection between the new roadbed 2 and the old roadbed 1 is improved.

Another reinforcing steel frame is placed on the installed reinforcing steel frame, so that the dovetail blocks 25 are inserted into the connecting grooves 23, when the distance between the transverse plates 10 is adjusted, the dovetail blocks 25 move into the dovetail grooves 24, then the operation is repeated, the relative positions of the inserting rods 16 and the connecting rods 15 are adjusted, the anchor rods are connected with the old roadbed 1, the reinforcing steel frames are installed in the extension foundation pit, and finally, pervious concrete is poured between the reinforcing steel frames and the anchor rods, so that the extension of the new roadbed 2 is completed.

Claims

1. The utility model provides a compound road bed enlargement structure, includes old road bed (1) and new road bed (2), new road bed (2) set up one side of old road bed (1), its characterized in that: new road bed (2) are including basic unit (3), basic unit (3) are including consolidating steelframe and telescopic stock, consolidate the steelframe orientation the lateral wall of old road bed (1) with old road bed (1) offsets, the stock is connected consolidate the steelframe orientation on the lateral wall of old road bed (1), old road bed (1) orientation be provided with on the lateral wall of steelframe with the stock corresponds connecting hole (21) that set up, it keeps away from to consolidate the steelframe be provided with the slot on the lateral wall of old road bed (1), the one end of stock is run through it is close to consolidate the steelframe the lateral wall of old road bed (1) inserts and establishes in connecting hole (21), the other end with the slot is pegged graft, the concrete has been pour between the reinforcement steelframe.

2. A composite subgrade extension structure according to claim 1, in which: the connecting hole (21) is a threaded hole, the aperture of the connecting hole (21) is larger than the diameter of the end face of the anchor rod, and filler is filled between the connecting hole (21) and the anchor rod.

3. A composite subgrade extension structure according to claim 2, in which: and a reinforcing hole (22) is formed in the side wall of the anchor rod, and when the anchor rod is inserted into the connecting hole (21), the reinforcing hole (22) is positioned in the connecting hole (21).

4. A composite subgrade extension structure according to claim 1, in which: the side wall of the old roadbed (1) facing the new roadbed (2) is arranged to be in a step shape.

5. A composite subgrade extension structure according to claim 1, in which: the concrete poured between the reinforced steel frames is pervious concrete.

6. A composite subgrade extension structure according to claim 5, in which: novel road bed (2) still include the drainage blanket, the drainage blanket sets up along vertical direction the below of basic unit (3), the drainage blanket includes metalling (5) and soft formula pipe (6) of permeating water, be provided with mounting groove (8) that are used for installing soft formula pipe (6) of permeating water in metalling (5), soft formula pipe (6) of permeating water pass through mounting groove (8) set up in metalling (5), the tip of soft formula pipe (6) of permeating water runs through metalling (5).

7. A composite subgrade extension structure according to claim 1, in which: the reinforced steel frames are arranged in the vertical direction, and the reinforced steel frames are adjacent to each other and can be detachably connected.

8. A composite subgrade extension structure according to claim 1, in which: and the reinforced steel frame is connected with a connecting net (13).