CN112482116A

CN112482116A - Compromise roadbed structure intensity's road bed and prevent subsiding device

Info

Publication number: CN112482116A
Application number: CN202011365188.1A
Authority: CN
Inventors: 徐敏旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-03-12

Abstract

The invention relates to the technical field of road construction, and discloses a roadbed anti-settlement device considering roadbed structural strength. This take into account roadbed structural strength's road bed prevents subsiding device, still the support is provided to a plurality of bracing pieces of accessible after the roadbed subsides, can avoid cement road surface to collapse after the heavy load, and the spring can promote the base plate and move down after the roadbed subsides simultaneously, and then through first stay cord pulling valve handle, can be to base plate bottom injection foaming glue, upwards promotes the base plate after the foaming glue inflation, is favorable to in time will subsiding the clearance restoration that the back formed.

Description

Compromise roadbed structure intensity's road bed and prevent subsiding device

Technical Field

The invention relates to the technical field of road construction, in particular to a roadbed anti-settlement device giving consideration to the structural strength of a roadbed.

Background

The foundation structure is comparatively simple when present rural cement road is laid, prevents subsiding the effect relatively poor, consequently takes place to subside easily in the soft department of soil texture, when heavy vehicle driven from this settlement department top road surface, causes cement road surface to burst apart and collapse very easily, and the safety risk is higher.

At present, the anti-settlement operation for the roadbed basically surrounds the roadbed, although the settlement probability can be reduced, the settlement risk still exists, corresponding remedial measures cannot be found in time when the settlement phenomenon occurs, and further improvement is needed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a roadbed anti-settlement device considering the roadbed structure strength, which has the advantages of safety, high efficiency and the like, and solves the problems that the existing roadbed anti-settlement operation basically surrounds the roadbed, the settlement probability can be reduced, the settlement risk still exists, corresponding remedial measures cannot be found in time when the settlement phenomenon occurs, and further improvement is needed.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a compromise road bed of roadbed structural strength and prevent subsiding device, includes the cement road surface, cement road surface bottom sets up the roadbed layer, first recess and second recess have been seted up to cement road surface bottom, the through hole has been seted up to cement road surface side, through hole and second recess intercommunication, the bracing piece has been buried underground to cement road surface bottom, the bracing piece bottom runs through the roadbed layer and extends to in the soil layer of bottom, inside the bracing piece top extended to first recess, bracing piece top fixedly connected with inner skleeve, the outer tube has been cup jointed to the inner skleeve outside, outer tube bottom fixedly connected with base plate, the inside spring that is equipped with of inner skleeve, spring and bracing piece fixed connection, spring top and bottom respectively with roof and base plate fixed connection inner skleeve in with.

The cement road surface one side has buried the cement groove underground, the inside mount pad that is equipped with of cement groove, be provided with the glue jar on the mount pad, glue tank top fixedly connected with discharging pipe, fixedly connected with conveying pipeline on the discharging pipe, the conveying pipeline runs through the cement groove lateral wall and extends to inside the through hole, the flexible ripple branch pipe of fixedly connected with on the conveying pipeline, flexible ripple branch pipe is located inside the second recess, flexible ripple branch pipe bottom and base plate fixed connection, flexible ripple branch pipe is provided with the valve handle with the conveying pipeline junction, the valve handle is through first stay cord and base plate fixed connection.

Preferably, the roadbed layer includes first tamped layer, first tamped layer bottom is provided with the arc tarpaulin, arc tarpaulin bottom is provided with the grey soil layer, grey soil layer bottom is provided with the second tamped layer.

Preferably, the two sides of the roadbed layer are embedded with two protection plates which are respectively fixedly connected with the edges of the two sides of the arc-shaped waterproof cloth, the protection plates are provided with strip-shaped drainage slotted holes, and the strip-shaped drainage slotted holes correspond to the edge positions of the arc-shaped waterproof cloth.

Preferably, a second pull rope is arranged between the two protection plates and buried in the roadbed layer, and two ends of the second pull rope are fixedly connected with screw rods.

Preferably, the screw rod runs through the guard plate and passes through bolt and guard plate fixed connection, a plurality of inserted bars of guard plate bottom fixedly connected with, the inserted bar extends to in the road bed bottom soil layer.

Preferably, an elastic membrane is fixedly connected between the adjacent base plates, the elastic membrane is in a tensioning state, and the side surface of the protection plate is fixedly connected with the base plate through the elastic membrane.

Preferably, the top edge of the cement tank is provided with a base block, the base block is provided with an opening, and a toothed belt is arranged inside the opening.

Preferably, one end of the toothed belt is fixedly connected with a pull ring, the other end of the toothed belt is fixedly connected with the mounting seat, a hole is formed in the top of the hole, and a limiting device is arranged inside the hole.

Preferably, stop device includes the bail, the bail bottom meshes with the cingulum, the bail top extends to the base block top, bail top fixedly connected with extension spring, the extension spring cup joints with the bail, extension spring bottom and base block fixed connection.

Compared with the prior art, the invention provides a roadbed anti-settlement device with the roadbed structure strength, which has the following beneficial effects:

1. this take into account roadbed structure intensity's road bed anti-settling device, through the roadbed layer, the bracing piece, the base plate, a spring, glue the jar, flexible ripple branch pipe, the valve handle, the interact of first stay cord and guard plate, still a plurality of bracing pieces of accessible provide the support after the roadbed layer subsides, can avoid cement road surface to collapse after the heavy pressure, the spring can promote the base plate and move down after the roadbed layer subsides simultaneously, and then through first stay cord pulling valve handle, can to base plate bottom injection foaming glue, the inflation process of foaming glue can play the cushioning effect to the subsidence on cement road surface, upwards promote the base plate after the foaming glue inflation, be favorable to in time will subsiding the clearance of back formation and restore, and play the effect of supporting cement road surface 1.

2. This compromise roadbed anti-settling device of roadbed structural strength through setting up guard plate and second stay cord, is favorable to providing the protection for the roadbed layer, avoids the roadbed layer to flow to both sides under heavily pressing, and then has reduced the probability of subsiding, through setting up the arc tarpaulin, can completely cut off the rivers of infiltration downwards and discharge from the bar drainage slotted hole at edge, has further reduced the roadbed layer and has subsided the probability.

3. This compromise roadbed anti-settling device of roadbed structure intensity through being provided with base block, stop device, cingulum etc. in cement pit top edge, can pull the pull ring and take out mount pad and gluey jar, and convenient to use is laborsaving, the maintenance of the gluey jar of being convenient for, change and maintain.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a telescopic bellows leg according to the present invention;

FIG. 3 is a schematic view of the structure of the fender of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;

FIG. 6 is an enlarged view of the portion C of FIG. 1 according to the present invention.

Wherein: 1. cement road surface; 2. a roadbed layer; 201. a first rammed layer; 202. arc-shaped waterproof cloth; 203. a grey soil layer; 204. a second rammed layer; 3. a first groove; 4. a second groove; 5. a through hole; 6. a support bar; 7. an inner sleeve; 8. an outer sleeve; 9. a substrate; 10. a spring; 11. a cement tank; 12. a mounting seat; 13. a glue tank; 14. a discharge pipe; 15. a delivery pipe; 16. a telescopic corrugated branch pipe; 17. a valve handle; 18. a first pull cord; 19. a protection plate; 20. a strip-shaped drainage slotted hole; 21. a second pull cord; 22. a screw; 23. a bolt; 24. inserting a rod; 25. a base block; 26. opening a hole; 27. a toothed belt; 28. a pull ring; 29. a staple bolt; 30. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a roadbed anti-settlement device considering roadbed structure strength comprises a cement pavement 1, wherein the cement pavement 1 is a whole concrete pavement which is cast in actual production and has a certain bearing capacity, so that the roadbed can not break when collapsing, but cannot support the roadbed for too long time, a settled roadbed layer 2 needs to be filled in time, the bottom of the cement pavement 1 is provided with the roadbed layer 2, the roadbed layer 2 comprises a first tamping layer 201, the bottom of the first tamping layer 201 is provided with an arc-shaped waterproof cloth 202, the bottom of the arc-shaped waterproof cloth 202 is provided with a gray soil layer 203, the bottom of the gray soil layer 203 is provided with a second tamping layer 204, the structures and components of the first tamping layer 201, the gray soil layer 203 and the second tamping layer 204 are the same as those of the prior art, the bottom of the cement pavement 1 is provided with a first groove 3 and a second groove 4, and the number of the first groove 3 and the second groove 4 are multiple in actual application, the positions of the second grooves 4 and the first grooves 3 are distributed in a staggered manner, the first grooves 1 are surrounded and distributed by the second grooves 4, meanwhile, the supporting rods 6 in the first grooves 3 can be ensured to drive the second grooves 4 to act when moving, the side faces of the cement pavement 1 are provided with through holes 5, the through holes 5 are communicated with the second grooves 4, the supporting rods 6 are buried at the bottom of the cement pavement 1, the bottom ends of the supporting rods 6 penetrate through the roadbed layer 2 and extend into the soil layer at the bottom for supporting, the bottom ends of the supporting rods 6 are at least buried in one meter at the bottom of the roadbed layer 2 in practical application, the number of the supporting rods 6 is set to be multiple and distributed in a rectangular array according to the width of the pavement, the cement pavement 1 is assisted to be supported when the roadbed subsides, the instant supporting effect when the roadbed subsides is ensured, the time is won for later filling of foaming adhesive, and sinking or cracking under heavy pressure of the, the top end of the supporting rod 6 extends into the first groove 3, the top end of the supporting rod 6 is fixedly connected with an inner sleeve 7, the outer sleeve 8 is sleeved outside the inner sleeve 7, the bottom of the outer sleeve 8 is fixedly connected with a base plate 9, a spring 10 is arranged inside the inner sleeve 7, the spring 10 is fixedly connected with the supporting rod 6, the top end and the bottom end of the spring 10 are respectively fixedly connected with the inner top wall of the inner sleeve 7 and the base plate 9, the spring 10 is in a compression state in an initial state, when the road base layer 2 is settled, the base plate 9 moves downwards under the thrust of the spring 10, the spring 10 not only can play a role of driving the base plate 9 to move, but also realizes a certain buffering effect, when a road surface heavy-load vehicle passes, the cement road surface 1 can deform properly under the action of a load force, at the time, the cement road surface 1 can extrude the road base, guarantee a loaded scope on road surface, spring 10 still has certain cushioning effect simultaneously, and when the foundation takes place to subside, spring 10 can guarantee under the effect of self elasticity that bracing piece 6 does not take place the settlement of big degree to and guarantee through reaction force that cement road surface 1 does not take place to collapse, strive for the time for operation afterwards.

A cement groove 11 is buried in one side of a cement pavement 1, a mounting seat 12 is arranged in the cement groove 11, a glue tank 13 is arranged on the mounting seat 12, foaming glue for roadbed maintenance is poured in the glue tank 13 in practical application, the foaming glue is a polyurethane elastic sealing foaming material solidified by moisture and can be used for filling gaps and the like for construction, the foaming glue is similar to a foam shape when being just punched out and has certain elasticity, huge load caused by roadbed settlement can be buffered, meanwhile, certain elasticity can be exerted on the cement pavement 1 through the expansion process of the foaming glue, pressure caused by vehicle running on the top of the cement pavement 1 is buffered, the cement pavement 1 is ensured not to be fractured, meanwhile, the foaming glue has certain fluidity, the cracks generated along with roadbed settlement can flow, all cracks are filled, the filling tightness is ensured, and after the foaming glue is stable in expansion, the cement pavement 1 has good stability and water absorption, the foaming adhesive is economical and practical, has strong stability and very practical value, the top of the adhesive tank 13 is fixedly connected with the discharge pipe 14, the discharge pipe 14 is fixedly connected with the conveying pipe 15, the discharge pipe 14 and the conveying pipe 15 are both provided with connecting flanges in practical application, the two connecting flanges are connected through screws, the conveying pipe 15 penetrates through the side wall of the cement tank 11 and extends to the inside of the through hole 5, the conveying pipe 15 is fixedly connected with the telescopic corrugated branch pipe 16, the telescopic corrugated branch pipe 16 is positioned inside the second groove 4, the bottom end of the telescopic corrugated branch pipe 16 is fixedly connected with the base plate 9, the number of the telescopic corrugated branch pipes 16 is multiple and is respectively distributed inside different second grooves 4, the base plate 9 is provided with a round hole matched with the telescopic corrugated branch pipe 16 in practical application, and is favorable for injecting the foaming adhesive to the bottom of the base plate 9 through the telescopic corrugated branch pipe 16, a valve handle 17 is arranged at the joint of the telescopic corrugated branch pipe 16 and the feed delivery pipe 15, and the valve handle 17 is fixedly connected with the base plate 9 through a first pull rope 18.

2 both sides of roadbed layer have buried guard plate 19 underground, and two guard plates 19 respectively with arc tarpaulin 202 both sides edge fixed connection, seted up bar drainage slotted hole 20 on the guard plate 19, bar drainage slotted hole 20 corresponds with arc tarpaulin 202 border position, and the central part of arc tarpaulin 202 is protruding, and drainage slotted hole 20 is connected at both ends, is favorable to discharging the secret rivers of arc tarpaulin 202 separation through bar drainage slotted hole 20, avoids secret rivers infiltration bottom.

Be equipped with second stay cord 21 between two guard plates 19, second stay cord 21 sets up to wire rope, the cross-section of second stay cord 21 sets up to 1cm at least, the quantity of second stay cord 21 sets up to a plurality ofly during practical application, a plurality of second stay cords 21 evenly distributed, be favorable to connecting two guard plates 19, and then avoided roadbed layer 2 to run off to both sides under heavily pressing, protection through second stay cord 21 and guard plate 19, the road bed is difficult to sink to both sides, the probability that the road bed sinks has been reduced, guarantee the stability of road bed, second stay cord 21 is buried underground in roadbed layer 2, the equal fixedly connected with screw rod 22 in second stay cord 21 both ends, screw rod 22 runs through guard plate 19 and passes through bolt 23 and guard plate 19 fixed connection, 19 bottom fixedly connected with of guard plate a plurality of inserted bars 24, inserted bar 24 extends to 2 bottom soil layers in situ of roadbed layer.

The adjacent base plates 9 are fixedly connected with an elastic membrane which has certain elasticity and separates the cement pavement 1 from the roadbed layer 2, various operations occurring on the roadbed layer 2 cannot affect the cement pavement 1, the stability of the cement pavement 1 is protected, the elastic membrane is in a tensioning state, the elastic membrane in the tensioning state has early warning force, the side surface of the protection plate 19 is fixedly connected with the base plate 9 through the elastic membrane, the protection plate 19 is connected with the base plate 9 through the elastic membrane, when the roadbed subsides, the base plate 9 descends, the base plates 9 can be connected in series under the action of the elastic membrane, the detection range is enlarged, the full coverage of the roadbed is realized, the base plate 9 corresponding to the subsided place is subsided only if the subsided place exists, the protection plate 19 is driven to deflect when the base plate 9 subsides, but under the action of the second pull rope 21 and the elastic membrane, the protection plate 19 can exert certain acting force on the settlement position, the settlement degree is reduced, meanwhile, the rotation of the protection plate 19 can also play a detection role, the base plate 9 settles and drives the telescopic corrugated branch pipes 16 to eject the foaming adhesive, the foaming adhesive has certain expansion force when being ejected, the elastic membrane can be driven to rebound, the cement pavement 1 is supported at the same time, the buffering role is played, the foaming adhesive flows into a gap between the elastic membrane and the pavement layer 2 according to the fluidity of the foaming adhesive, the foaming adhesive can fill the gap generated by roadbed settlement under the limitation of the elastic membrane and the cement pavement 1 and does not cause jacking pressure on the cement pavement 1, meanwhile, the slow expansibility of the foaming adhesive can drive the base plate 9 and the elastic membrane to bear upward supporting force, the reversion of the base plate 9 can drive the first pull rope 18 to move upwards until the valve handle 17 is not pulled by the first pull rope 18, the telescopic corrugated branch pipes 16 are not injecting the foaming adhesive, simultaneously base plate 9 and elastic membrane receive the expansion of expanded polystyrene foam to drive the slow gyration of guard plate 19, guarantee the double-layered guard action to roadbed 2, have extremely strong hardness after the expanded polystyrene foam solidifies, can be used as the support between cement road surface 1 and roadbed 2, fill the harm that the road bed subsides and cause, and the expanded polystyrene foam has the hydroscopicity simultaneously, can avoid the influence that moisture caused the road bed.

In practical problems, the subgrade settlement mainly comprises two conditions, one is settlement of a subgrade bottom subgrade cushion layer so as to drive a subgrade layer to settle, when the condition occurs, the subgrade layer 2 can settle downwards so as to drive a base plate 9 to settle, a spring inside the base plate 9 can rely on the elasticity of the spring to prevent the base plate 9 from continuously settling downwards, a good buffer effect is achieved, the base plate 9 slowly settles so as to drive a first pull rope 18 to open a valve handle 17, a flexible corrugated branch pipe 16 injects foaming adhesive to the lower part of the base plate 9 and an elastic membrane, so the settlement is a stable process, the cement pavement 1 has a certain supporting force, the cement pavement 1 cannot be broken instantly, the problem of subgrade settlement can be solved by injecting the foaming adhesive, the other reason of subgrade settlement is that the bearing force of the cement pavement 1 is too large, lead to the cement road surface deformation volume in the twinkling of an eye too big, extrude roadbed 2 downwards, this moment because the upwards supporting role of bracing piece 6, can play certain support to cement road surface 1, prevent that the cement road surface from taking place the fracture, simultaneously under the effect of basic 9 and elastic membrane, flexible ripple branch pipe 16 pours into the foaming adhesive into downwards, the self expansion characteristic of foaming adhesive can upwards produce the holding power, buffering cement road surface 1's collapse, guarantee cement road surface 1's stability, the gap that produces in the road bed is filled to the foaming adhesive simultaneously, the foaming adhesive has high hardness after the inflation is stable, can replace original road bed to realize the supporting role to cement road surface 1, two kinds of circumstances can rebound base plate 9 and elastic membrane under the inflation effect of foaming adhesive simultaneously, the valve is closed from the side, stop flexible bellows 16 to pour into the foaming adhesive into.

The top edge of the cement tank 11 is provided with a base block 25, the base block 25 is provided with an opening 26, a toothed belt 27 is arranged in the opening 26, one end of the toothed belt 27 is fixedly connected with a pull ring 28, the other end of the toothed belt 27 is fixedly connected with the mounting seat 12, the top of the opening 26 is provided with a hole, a limiting device is arranged in the hole and comprises a clamping nail 29, the bottom end of the clamping nail 29 is meshed with the toothed belt 27, the top end of the clamping nail 29 extends to the top of the base block 25, the top end of the clamping nail 29 is fixedly connected with a tension spring 30, the tension spring 30 is sleeved with the clamping nail 29, the bottom end of the tension spring 30 is fixedly connected with the base block 25, in practical application, at least two base blocks 25 are arranged, one side of the toothed belt 27 is provided with tooth blocks which are uniformly distributed, when the toothed belt 27 is pulled through the pull ring 28, the glue tank 13 and, the operation is convenient.

When the waterproof structure is used, the arc-shaped waterproof cloth 202 can block downward-permeating water flow, the water flow is guided to the edge of the arc-shaped waterproof cloth 202 and is discharged through the strip-shaped water discharge slotted holes 20 in the protection plates 19, the influence of underground water on a roadbed is reduced, meanwhile, the two protection plates 19 are embedded in two sides of the roadbed and connected through the second pull ropes 21, the loss of a foundation course layer to two sides under heavy pressure can be prevented, if the settlement phenomenon still occurs, the spring 10 can push the base plate 9 to move downwards, the base plate 9 can move downwards to pull the valve handle 17 through the first pull rope 18, the foaming adhesive can be injected into the bottom of the base plate 9 through the telescopic corrugated branch pipes 16, the foaming adhesive can fill gaps and jack the base plate 9 and the elastic membrane upwards until the valve handle 17 is not pulled by the first pull rope 18 any more, the injection of the foaming adhesive can be stopped, and the foaming.

This take into account roadbed structure intensity's road bed anti-settling device, through roadbed layer 2, bracing piece 6, base plate 9, spring 10, glue jar 13, flexible ripple branch pipe 16, valve handle 17, the interact of first stay cord 18 and guard plate 19, still accessible a plurality of bracing pieces 6 provide the support after roadbed layer 2 subsides, can avoid bursting apart after cement road surface 1 receives the heavy load, spring 10 can promote base plate 9 and move down after roadbed layer 2 subsides simultaneously, and then through 18 pulling valve handles 17 of first stay cord, can be to base plate 9 and elastic film bottom injection foaming glue, the expansion process of foaming glue can provide reaction force to cement road surface 1, buffering cement road surface 1 receives the heavy load and takes place the fracture, upwards promote base plate 9 after the foaming glue inflation is stable, be favorable to in time will subsiding the clearance of back formation and repair, and play the effect of supporting cement road surface 1.

This take into account roadbed structure intensity's road bed prevents subsiding device, through setting up guard plate 19 and second stay cord 21, be favorable to providing the protection for roadbed layer 2, avoid roadbed layer 2 to flow to both sides under heavily pressing, and then reduced and subsided the probability, through setting up arc tarpaulin 202, can completely cut off the rivers that infiltrate downwards and discharge from the bar drainage slotted hole 20 at edge, further reduced roadbed layer 2 and subsided the probability.

This take into account roadbed structure intensity's road bed anti-settling device through being provided with base block 25, stop device, cingulum 27 etc. at 11 top edges of cement silo, can pull ring 28 and take out mount pad 12 and gluey jar 13, and convenient to use is laborsaving, is convenient for glue jar 13's maintenance, change and maintenance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compromise roadbed structure intensity's road bed and prevent subsiding device, includes cement road surface (1), its characterized in that: the road surface structure is characterized in that a road base layer (2) is arranged at the bottom of the cement road surface (1), a first groove (3) and a second groove (4) are formed in the bottom of the cement road surface (1), a through hole (5) is formed in the side surface of the cement road surface (1), the through hole (5) is communicated with the second groove (4), a support rod (6) is buried in the bottom of the cement road surface (1), the bottom end of the support rod (6) penetrates through the road base layer (2) and extends into a bottom soil layer, the top end of the support rod (6) extends into the first groove (3), an inner sleeve (7) is fixedly connected to the top end of the support rod (6), an outer sleeve (8) is sleeved outside the inner sleeve (7), a base plate (9) is fixedly connected to the bottom of the outer sleeve (8), a spring (10) is arranged inside the inner sleeve (, the top end and the bottom end of the spring (10) are respectively fixedly connected with the inner top wall of the inner sleeve (7) and the base plate (9);

a cement groove (11) is embedded at one side of the cement pavement (1), a mounting seat (12) is arranged in the cement groove (11), a rubber tank (13) is arranged on the mounting seat (12), a discharge pipe (14) is fixedly connected to the top of the rubber tank (13), a material conveying pipe (15) is fixedly connected to the material discharging pipe (14), the material conveying pipe (15) penetrates through the side wall of the cement groove (11) and extends to the inside of the through hole (5), a telescopic corrugated branch pipe (16) is fixedly connected to the material conveying pipe (15), the telescopic corrugated branch pipe (16) is positioned in the second groove (4), the bottom end of the telescopic corrugated branch pipe (16) is fixedly connected with the base plate (9), a valve handle (17) is arranged at the joint of the telescopic corrugated branch pipe (16) and the material conveying pipe (15), the valve handle (17) is fixedly connected with the base plate (9) through a first pull rope (18).

2. The subgrade settlement-preventing device considering the subgrade structure strength according to the claim 1 is characterized in that: roadbed layer (2) includes first tamped layer (201), first tamped layer (201) bottom is provided with arc tarpaulin (202), arc tarpaulin (202) bottom is provided with grey soil layer (203), grey soil layer (203) bottom is provided with second tamped layer (204).

3. The roadbed anti-settlement device considering the roadbed structure strength according to claim 2, characterized in that: protection plates (19) are buried underground on two sides of the roadbed layer (2), the protection plates (19) are fixedly connected with edges of two sides of the arc-shaped waterproof cloth (202) respectively, a strip-shaped drainage slotted hole (20) is formed in the protection plates (19), and the strip-shaped drainage slotted hole (20) corresponds to the edge position of the arc-shaped waterproof cloth (202).

4. The roadbed settlement preventing device considering the roadbed structural strength according to claim 3, characterized in that: a second pull rope (21) is arranged between the two protection plates (19), the second pull rope (21) is embedded in the roadbed layer (2), and two ends of the second pull rope (21) are fixedly connected with screw rods (22).

5. The subgrade settlement-preventing device considering the subgrade structure strength according to claim 4, is characterized in that: screw rod (22) run through guard plate (19) and through bolt (23) and guard plate (19) fixed connection, a plurality of inserted bars (24) of guard plate (19) bottom fixedly connected with, inserted bar (24) extend to in the roadbed layer (2) bottom soil layer.

6. The subgrade settlement-preventing device considering the subgrade structure strength according to the claim 1 is characterized in that: an elastic membrane is fixedly connected between the adjacent base plates (9), the elastic membrane is in a tensioning state, and the side surface of the protection plate (19) is fixedly connected with the base plates (9) through the elastic membrane.

7. The subgrade settlement-preventing device considering the subgrade structure strength according to the claim 1 is characterized in that: the cement tank (11) top edge is provided with base block (25), trompil (26) have been seted up on base block (25), trompil (26) inside is equipped with toothed belt (27).

8. The subgrade settlement-preventing device considering the subgrade structure strength according to claim 7 is characterized in that: one end of the toothed belt (27) is fixedly connected with a pull ring (28), the other end of the toothed belt (27) is fixedly connected with the mounting seat (12), a hole is formed in the top of the hole (26), and a limiting device is arranged inside the hole.

9. The subgrade settlement-preventing device considering the subgrade structure strength according to claim 7 is characterized in that: stop device includes bail (29), bail (29) bottom and cingulum (27) meshing, bail (29) top is extended to basic block (25) top, bail (29) top fixedly connected with extension spring (30), extension spring (30) cup joint with bail (29), extension spring (30) bottom and basic block (25) fixed connection.