CN111395084A - Highway subgrade reinforcing structure and construction method - Google Patents

Abstract

The invention discloses a highway subgrade reinforcing structure and a construction method, which comprises the following steps: a water discharge section; the first reinforcing layer is arranged at the bottom end of the highway subgrade and comprises a plurality of reinforcing bottom plates and first concrete layers on the reinforcing bottom plates, each reinforcing bottom plate comprises a box body and a cover plate, a first opening is formed in the top end of each box body, a plurality of rows of first pipe bodies are arranged in each box body, and the first pipe bodies are in butt joint with the drainage parts through second pipe bodies; a column body is arranged between the first pipe bodies, and concrete is poured in the box body; the cover plate is buckled at the top end of the box body; concrete is poured inside and outside the column body; the second reinforcing layer is arranged at the top end of the first concrete layer and comprises a lifting layer; and the control part comprises a controller and a settlement intelligent sensing module connected to the controller, and adjusts the upper and lower positions of the blocks to compensate the settlement of the road surface. The invention improves the reinforcing effect on the highway subgrade and is convenient for quickly compensating the pavement settlement in a small area.

Description

Highway subgrade reinforcing structure and construction method

Technical Field

The invention relates to the technical field of road construction, in particular to a highway subgrade reinforcing structure and a construction method.

Background

The roadbed is a foundation of a track or a road surface and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for track or road surface laying and train or traveling operation, bearing static load and dynamic load of track and locomotive vehicle or road surface and traffic load, and transmitting and diffusing the load to the deep part of the foundation. On the longitudinal section, the roadbed must ensure the required elevation of the line; on the plane, the roadbed, the bridge and the tunnel are connected to form a complete through line, but the roadbed has a plurality of small-area subsidences due to the fact that the stability of the original roadbed structure of the highway in use is not enough, the weight of vehicles and the circulation condition are met, rainwater impacts, accumulation and the like, and therefore the major potential safety hazard of driving is caused, and the highway roadbed reinforcing structure and the construction method are necessary.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

The invention also aims to provide a highway subgrade strengthening structure and a construction method, which improve the strengthening effect of the highway subgrade and are convenient for quickly compensating the pavement settlement in a small area.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a highway subgrade reinforcement structure comprising:

the drainage part is arranged on two sides of a highway subgrade and comprises a drainage main body part and a drainage plate arranged at the top end of the drainage main body part; the drainage main part sets up to U type structure, the width of drainage plate with the distance adaptation between the drainage main part U type structure, one side of the adjacent highway of drainage plate is higher than the opposite side of drainage plate, one side that the top of drainage plate is close to the side slope sets up a plurality of rectangular shape openings.

The first reinforcing layer is arranged at the bottom end of the highway subgrade and comprises a plurality of reinforcing bottom plates and a first concrete layer arranged on the reinforcing bottom plates, the plurality of reinforcing bottom plates are arranged along the longitudinal direction of the highway, each reinforcing bottom plate comprises a box body and a cover plate, a first opening is formed in the top end of each box body, a plurality of rows of first pipe bodies of hollow structures are arranged in the box body along the longitudinal direction of the highway, and the first pipe bodies are communicated with the drainage main body parts on the two sides of the subgrade through second pipe bodies; a cylinder with a hollow structure vertical to the bottom end of the box body is arranged between the first pipe bodies, and concrete is poured into a gap in the box body; the cover plate is provided with a hole matched with the column body, and the column body penetrates through the hole, so that the cover plate is buckled at the top end of the box body; the top end of the column body is provided with a second opening; and pouring concrete in the column body and outside the column body to form a first concrete layer positioned at the top end of the cover plate.

The second back up coat, it sets up the top on first concrete layer, the second back up coat includes from supreme down in proper order: the device comprises a lifting layer, a sand layer, a graded gravel layer, a steel wire mesh layer and an asphalt layer; the lifting layer comprises a lifting bottom plate, a lifting pressure plate and a plurality of groups of cylinders, wherein the cylinders are located between the lifting bottom plate and the lifting pressure plate, the lifting pressure plate is composed of a plurality of groups of blocks, and a group of cylinders corresponds to the lower side of each block.

The control part comprises a controller and a settlement intelligent sensing module connected to the controller, wherein the settlement intelligent sensing module is used for positioning a settlement area, monitoring the pavement settlement amount in the settlement area and sending the information of the corresponding air cylinder in the settlement area to the controller so as to control the expansion and contraction of the corresponding air cylinder through the controller and adjust the upper and lower positions of the block to compensate the settlement of the pavement.

Preferably, the drainage plate is connected to the drainage body part in a specific manner that: the drainage device is characterized in that first clamping grooves are symmetrically formed in two sides of the top end of the drainage main body part along the extending direction of the road, second clamping grooves are symmetrically formed in the head end and the tail end of the drainage plate respectively, a clamping plate is arranged in each second clamping groove, a moving column is arranged at the first end of each clamping plate, the second end of each clamping plate is clamped and fixed in each first clamping groove, the clamping plates are driven to move leftwards and rightwards through the movement of the moving columns, and a sinking platform of 1-2 cm is arranged on the inner side of each first clamping groove.

Preferably, a reinforcing plate is arranged between the columns and positioned above the cover body, convex clamping grooves are formed in two sides of each column, two ends of the reinforcing plate are fixedly clamped in the convex clamping grooves, and the height of each column is 5-8 cm.

Preferably, the first pipe body and the drain main body are butted in a specific manner that: the first end or the tail end of the box body is provided with a cavity, the first pipe bodies in the box body are communicated with each other in the front and at the back, branch pipes communicated with the first pipe bodies are arranged in the cavity, the branch pipes are communicated with the second pipe bodies, the first ends of the second pipe bodies are communicated with the drainage main body part, the second ends of the second pipe bodies extend to a road green belt, the first ends and the second ends of the second pipe bodies are provided with valve bodies, and the valve bodies are controlled by the controller.

Preferably, a plurality of connecting pipes communicated with the first pipe body are arranged between the first pipe bodies, and the first pipe bodies and the connecting pipes are both of a spiral structure.

Preferably, the inner side and the outer side of the box body and the cover body are both provided with a waterproof layer and an anticorrosive layer, and the height of the box body is set to be 10-15 cm.

A method of constructing a highway subgrade reinforcement structure according to any one of the preceding claims, said method comprising the steps of:

step 1, leveling the bottom end of the roadbed, placing the reinforcing bottom plate, enabling the reinforcing bottom plate to be longitudinally arranged end to end along the highway, enabling the first pipe bodies in the box bodies to be communicated in the front and at the back, and meanwhile ensuring that the top end of the box body is parallel to the bottom end of the roadbed.

And 2, installing the drainage main body parts on two sides of the roadbed, wherein one side, close to the box body, of the drainage main body part is higher than the other side of the drainage main body part, and installing the drainage plate and the second pipe body.

And 3, butting the sub pipe and the second pipe body, and pouring concrete into the box body until the sub pipe and the second pipe body are flush with the top end of the box body.

And 4, enabling the column body to penetrate through the hole, enabling the cover plate to be buckled on the box body, fixedly connecting the cover plate and the box body, and pouring concrete above the cover plate and in the column body to form the first concrete layer, wherein the top end of the first concrete layer is 2-3 cm higher than that of the column body.

And 5, after the first concrete layer is maintained, laying a lifting layer, a sand layer, a graded gravel layer, a steel wire mesh layer and an asphalt layer above the first concrete layer in sequence until the first concrete layer is flush with the road surface.

The invention at least comprises the following beneficial effects:

the drainage parts are arranged on the two sides of the roadbed, so that the rapid drainage of the road surface is facilitated; as drainage main part channel, its top and road surface butt joint through the drainage main part, the drainage mode that the slope of rethread drainage plate set up, quick effectual ponding drainage to the rectangular shape opening with the road surface both sides to in getting into the drainage main part, be convenient for drainage, water storage and utilize waste water to irrigate.

Through setting up first back up coat in the bottom of highway subgrade, consolidate the road bed end, avoid the appearance of subsiding, utilize set up concrete reinforcement in the box body to with apron lock mode as an organic whole, make the reinforced structure of whole first back up coat reliable and stable, and pass through the mode that the cylinder runs through the hole, carry out the secondary to the lid and fix, through the mode to concreting in the cylinder, make the concrete structure in cylinder structure and the box body as an organic whole, establish the compactness that overall structure connects, and through the mode that sets up first body in the box body, make it and second body butt joint, communicate with each other with the drainage main part, thereby establish the channel of drainage, be convenient for simultaneously through first body with the drainage storage, the irrigation of the vegetation of being convenient for. And then the concrete poured in the column body and the concrete outside the column body are integrated, so that the overall stability of the roadbed is improved.

Set up the lift layer through the top on first concrete layer, fix cylinder group through lifting bottom plate, cylinder group corresponds fixed block for different cylinder groups, and a plurality of blocks constitute the upgrading clamp plate, are convenient for when the road surface subsides the compensation, compensate subsiding to the small size, very big reduction the tractive nature between the compensation area, more through the setting of wire net layer, establish the holistic connectivity in road surface, fracture when the compensation on bigger degree avoids the road surface.

Through the effect of subsiding intelligent induction module, automatic quick location settlement point or settlement zone, and in time acquire the volume of subsiding, be convenient for quick location compensation subsides the required cylinder position and the quantity of starting the operation of the volume of subsiding in the zone, the controller is after receiving cylinder position and quantity information, control corresponding cylinder, make its extension, thereby compensate fast subsiding to the road surface, the insecurity of driving that has greatly reduced owing to subside and cause.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a roadbed reinforcement structure of a highway according to the present invention;

FIG. 2 is a schematic structural view of the case of the present invention without a cover plate;

FIG. 3 is a schematic view of the cover plate according to the present invention;

FIG. 4 is a schematic structural view of a flow guide plate according to the present invention;

FIG. 5 is a schematic structural view of the joint between the column and the reinforcing plate according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 3, the present invention provides a roadbed reinforcement structure for a road, including:

the drainage part is arranged on two sides of a highway subgrade and comprises a drainage main body part 10 and a drainage plate 11 arranged at the top end of the drainage main body part 10; drainage main part 10 sets up to U type structure, the width of drainage plate 11 with the distance adaptation between the drainage main part 10U type structure, one side of the adjacent highway of drainage plate 11 is higher than the opposite side of drainage plate 11, one side that the top of drainage plate 11 is close to the side slope sets up a plurality of rectangular shape openings 110.

The first reinforcing layer is arranged at the bottom end of the highway subgrade and comprises a plurality of reinforcing bottom plates 20 and a first concrete layer 21 arranged on the reinforcing bottom plates 20, the plurality of reinforcing bottom plates 20 are arranged along the longitudinal direction of the highway, each reinforcing bottom plate 20 comprises a box body 22 and a cover plate 23, a first opening is formed in the top end of each box body 22, a plurality of rows of first pipe bodies 24 of hollow structures are arranged in the box bodies 22 along the longitudinal direction of the highway, and the first pipe bodies 24 are communicated with the drainage main body parts 10 on the two sides of the subgrade through second pipe bodies 25; a column 26 with a hollow structure vertical to the bottom end of the box body 22 is arranged between the first pipe bodies 24, and concrete is poured in a gap in the box body 22; the cover plate 23 is provided with a hole 27 matched with the column 26, and the column 26 penetrates through the hole 27, so that the cover plate 23 is buckled at the top end of the box body 22; the top end of the column 26 is provided with a second opening; concrete is poured inside the column 26 and outside the column 26 to form a first concrete layer 21 on top of the cover plate 23.

The second back up coat, it sets up the top of first concrete layer 21, the second back up coat includes from supreme down in proper order: the device comprises a lifting layer 3, a sand layer 4, a graded gravel layer 5, a steel wire mesh layer 6 and an asphalt layer 7; the lifting layer 3 comprises a lifting bottom plate 30, a lifting pressure plate 31 and a plurality of groups of cylinders 32 located between the lifting bottom plate 30 and the lifting pressure plate 31, wherein the lifting pressure plate 31 is composed of a plurality of groups of blocks 310, and a group of cylinders 32 is corresponding to the lower part of each block 310.

The control part comprises a controller and a settlement intelligent sensing module connected to the controller, wherein the settlement intelligent sensing module is used for positioning a settlement area, monitoring the pavement settlement amount in the settlement area and sending the information of the corresponding air cylinder 32 in the settlement area to the controller, so that the controller controls the expansion and contraction of the corresponding air cylinder 32 to adjust the upper and lower positions of the block 310 to compensate the settlement of the pavement.

In the scheme, the drainage parts are arranged on the two sides of the roadbed, so that the rapid drainage of the road surface is facilitated; as drainage main part channel through drainage main part 10, its top docks with the road surface, and the drainage mode that 11 slopes of rethread drainage plate set up is quick effectual with the ponding drainage of road surface both sides to rectangular shape opening 110 in getting into drainage main part 10, be convenient for drainage, water storage and utilize waste water to irrigate.

Through setting up first back up coat in highway subgrade's bottom, consolidate the roadbed end, avoid the appearance of subsiding, utilize set up concrete reinforcement in the box body 22 to with apron 23 lock mode as an organic whole, make the reinforced structure of whole first back up coat stable and reliable, and pass through the mode that cylinder 26 runs through hole 27 carries out the secondary to the lid and fixes, through the mode to pouring concrete in the cylinder 26, make the concrete structure in cylinder 26 structure and the box body 22 as an organic whole, establish the compactness of overall structure connection, and through the mode that sets up first body 24 in the box body 22, make it dock with second body 25, communicate with each other with drainage main part 10, thereby establish the channel of drainage, be convenient for simultaneously through first body 24 with the drainage storage, the irrigation of the vegetation of being convenient for. And then the concrete poured in the column 26 and the concrete outside the column 26 form a whole, so that the overall stability of the roadbed is improved.

Set up lift layer 3 through the top at first concrete layer 21, fix cylinder 32 group through lifting floor 30, different cylinder 32 groups correspond fixed block 310, a plurality of blocks 310 constitute the upgrading clamp plate, be convenient for when the road surface subsides the compensation, subside to small area and compensate, very big reduction the tractive nature between the compensation area, more through the setting of wire net layer 6, establish the holistic connectivity in road surface, fracture when the compensation on bigger degree avoided the road surface, be provided with between lift clamp plate 31 and the lifting floor 30 and be located the protection folded layer in the cylinder 32 outside guarantees the life of cylinder 32.

Through the effect of subsiding intelligent induction module, automatic quick location settlement point or settlement zone, and in time acquire the volume of subsiding, be convenient for quick location compensation subsides the required cylinder 32 position and the quantity that starts the operation of the volume of subsiding in the zone, the controller is behind receiving cylinder 32 position and quantity information, control corresponding cylinder 32, make its extension, thereby compensate fast subsiding to the road surface, the insecurity of driving a vehicle that causes owing to subsiding has greatly been reduced.

In a preferred embodiment, the drainage plate 11 is connected to the drainage main body 10 in a specific manner: first clamping grooves 101 are symmetrically formed in two sides of the top end of the drainage main body part 10 along the extending direction of the road, second clamping grooves 111 are symmetrically formed in the head end and the tail end of the drainage plate 11 respectively, a clamping plate 112 is arranged in the second clamping groove 111, a moving column 113 is arranged at the first end of the clamping plate 112, the second end of the clamping plate 112 is clamped in the first clamping groove 101, the clamping plate 112 is driven to move left and right through the movement of the moving column 113, and a sinking platform 114 of 1-2 cm is arranged on the inner side of the first clamping groove 101.

In the above scheme, as shown in fig. 4, the movable column 113 is moved in the second clamping groove 111, so that the clamping plate 112 extends into or out of the first clamping groove 101, thereby fixing or detaching the drainage plate 11 is completed, the sinking platform 114 supports two sides of the drainage plate 11, and the stability of the installation of the drainage plate 11 is ensured by clamping the clamping plate 112 in the first clamping groove 101.

In a preferable scheme, a reinforcing plate 28 located above the cover body is arranged between the columns 26, an external convex slot 280 is arranged on both sides of the column 26, both ends of the reinforcing plate 28 are clamped in the external convex slot 280, and the height of the column 26 is set to be 5-8 cm.

In the above solution, as shown in fig. 5, by providing the connecting plates between the columns 26, the tightness of the connection between the columns 26 is established, and at the same time, the first reinforcing layer is further reinforced as a whole; the connection board is more labor-saving to install by being clamped and fixed in the outer convex clamping groove 280. The height of the column 26 ensures the fastening tightness of the cover body without influencing the structure laid on the upper layer.

In a preferred embodiment, the specific manner of abutting the first pipe 24 with the drain main body 10 is as follows: the head end or the tail end of the box body 22 is provided with a cavity, the first pipe body 24 in the box body 22 is communicated with each other in the front and at the back, a branch pipe 250 communicated with the first pipe body 24 is arranged in the cavity, the branch pipe 250 is communicated with the second pipe body 25, the first end of the second pipe body 25 is communicated with the drainage main body part 10, the second end of the second pipe body 25 extends to a road green belt, the first end and the second end of the second pipe body 25 are both provided with a valve body, and the valve body is controlled by the controller.

In the above solution, as shown in fig. 2, the connection between the second tube 25 and the first tube 24 is conveniently established by butting the sub-tube with the first tube 24, the sub-tube is disposed in the chamber, the connection between the front and rear box bodies 22 and the first tube 24 is not affected, and the connection end between the sub-tube and the first tube 24 is protected; the mode that second body 25 set up is convenient for with the drainage of highway both sides, makes it get into the interior storage of first body 24, is convenient for utilize the drainage of storage simultaneously, perhaps drainage to highway greenbelt irrigates the vegetation of greenbelt, when guaranteeing the drainage, make full use of waste water resource to through the control of controller to the valve body, make the utilization of drainage more be convenient for manage.

In a preferred embodiment, a plurality of connecting pipes 29 communicated with the first pipe 24 are disposed between the first pipes 24, and both the first pipes 24 and the connecting pipes 29 have a spiral structure.

In the above scheme, first body 24 sets up to helical structure for in the length of corresponding box body 22 or width, the volume of the water storage of the first body 24 of maximize, helical structure's first body 24 plays fine reinforcing effect to box body 22 simultaneously, and the same is connected pipe 29 sets up to same helical structure, the bigger volume that has expanded the water storage, makes first body 24 more firm with being connected of first body 24 simultaneously.

In a preferable scheme, the inner side and the outer side of the box body 22 and the cover body are both provided with a waterproof layer and an anticorrosive layer, and the height of the box body 22 is set to be 10-15 cm.

In the above scheme, through the setting of waterproof layer and anticorrosive coating, guarantee the reinforcing effect and the life-span of using of first back up coat, the high setting of box body 22 when being convenient for guarantee the water storage space that first body 24 constitutes in the box body 22, avoids the unnecessary consumptive material, leaves sufficient laying height for the layer of laying on upper strata simultaneously.

A method of constructing a highway subgrade reinforcement structure according to any one of the preceding claims, said method comprising the steps of:

step 1, leveling the bottom end of the roadbed, placing the reinforcing bottom plate 20, enabling the reinforcing bottom plate 20 to be arranged in an end-to-end connection mode along the longitudinal direction of the highway, enabling the first pipe bodies 24 in the box bodies 22 to be communicated in the front and at the back, and meanwhile ensuring that the top end of the box body 22 is parallel to the bottom end of the roadbed.

And 2, mounting the drainage main body part 10 on two sides of the roadbed, wherein one side, close to the box body 22, of the drainage main body part 10 is higher than the other side, and mounting the drainage plate 11 and the second pipe body 25.

And 3, butting the sub pipe and the second pipe body 25, and pouring concrete into the box body 22 until the sub pipe and the second pipe body are flush with the top end of the box body 22.

And 4, penetrating the column 26 through the hole 27 to enable the cover plate 23 to be buckled on the box body 22, fixedly connecting the cover plate 23 and the box body 22, and pouring concrete above the cover plate 23 and in the column 26 to form the first concrete layer 21, wherein the top end of the first concrete layer 21 is 2-3 cm higher than the top end of the column 26.

And 5, after the first concrete layer 21 is maintained, paving a lifting layer 3, a sand layer 4, a graded gravel layer 5, a steel wire mesh layer 6 and an asphalt layer 7 above the first concrete layer 21 in sequence until the first concrete layer is flush with the road surface.

In the above scheme, the stability of installation and the reinforcing effect of the reinforcing bottom plate 20 are ensured by making the reinforcing bottom plate 20 parallel to the roadbed; concrete is poured in the box body 22 firstly, and then the cover body is buckled, so that the concrete in the box body 22 is convenient to compact; by arranging the first reinforcing layer and the second reinforcing layer containing the lifting layer 3, the reinforcing effect is ensured, and the pavement settlement compensation is facilitated; the structure of the block 310 of the lifting layer 3, the size, the paving area and the paving position are arranged according to the previous pavement settlement data, the weight and the liquidity of the vehicle after the pavement is built, so that the settlement compensation effect is ensured conveniently; through setting up prefabricated drainage main part 10 in road bed both sides, not only consolidated the road bed both sides, be favorable to the quick drainage of drainage simultaneously, avoided the soaking of drainage to the road bed both sides completely, the setting of drainage main part 10 both ends difference more does benefit to the quick drainage of drainage, avoids the long-time deposit of road surface rivers.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (7)

1. A highway subgrade reinforcement structure comprising:

the drainage part is arranged on two sides of a highway subgrade and comprises a drainage main body part and a drainage plate arranged at the top end of the drainage main body part; the drainage main body part is of a U-shaped structure, the width of the drainage plate is matched with the distance between the U-shaped structures of the drainage main body part, one side of a road adjacent to the drainage plate is higher than the other side of the drainage plate, and one side, close to a side slope, of the top end of the drainage plate is provided with a plurality of strip-shaped openings;

the first reinforcing layer is arranged at the bottom end of the highway subgrade and comprises a plurality of reinforcing bottom plates and a first concrete layer arranged on the reinforcing bottom plates, the plurality of reinforcing bottom plates are arranged along the longitudinal direction of the highway, each reinforcing bottom plate comprises a box body and a cover plate, a first opening is formed in the top end of each box body, a plurality of rows of first pipe bodies of hollow structures are arranged in the box body along the longitudinal direction of the highway, and the first pipe bodies are communicated with the drainage main body parts on the two sides of the subgrade through second pipe bodies; a cylinder with a hollow structure vertical to the bottom end of the box body is arranged between the first pipe bodies, and concrete is poured into a gap in the box body; the cover plate is provided with a hole matched with the column body, and the column body penetrates through the hole, so that the cover plate is buckled at the top end of the box body; the top end of the column body is provided with a second opening; pouring concrete in the column body and outside the column body to form a first concrete layer positioned at the top end of the cover plate;

the second back up coat, it sets up the top on first concrete layer, the second back up coat includes from supreme down in proper order: the device comprises a lifting layer, a sand layer, a graded gravel layer, a steel wire mesh layer and an asphalt layer; the lifting layer comprises a lifting bottom plate, a lifting pressure plate and a plurality of groups of cylinders positioned between the lifting bottom plate and the lifting pressure plate, the lifting pressure plate is composed of a plurality of groups of blocks, and one group of cylinders corresponds to the lower part of each block;

the control part comprises a controller and a settlement intelligent sensing module connected to the controller, wherein the settlement intelligent sensing module is used for positioning a settlement area, monitoring the pavement settlement amount in the settlement area and sending the information of the corresponding air cylinder in the settlement area to the controller so as to control the expansion and contraction of the corresponding air cylinder through the controller and adjust the upper and lower positions of the block to compensate the settlement of the pavement.

2. The roadbed reinforcing structure of claim 1, wherein the drainage plate is connected with the drainage main body part in a manner that: the drainage device is characterized in that first clamping grooves are symmetrically formed in two sides of the top end of the drainage main body part along the extending direction of the road, second clamping grooves are symmetrically formed in the head end and the tail end of the drainage plate respectively, a clamping plate is arranged in each second clamping groove, a moving column is arranged at the first end of each clamping plate, the second end of each clamping plate is clamped and fixed in each first clamping groove, the clamping plates are driven to move leftwards and rightwards through the movement of the moving columns, and a sinking platform of 1-2 cm is arranged on the inner side of each first clamping groove.

3. The roadbed reinforcement structure of claim 1, wherein a reinforcing plate is arranged between the columns above the cover body, convex clamping grooves are arranged on two sides of each column, two ends of the reinforcing plate are clamped in the convex clamping grooves, and the height of each column is 5-8 cm.

4. A roadbed reinforcing structure for a highway according to claim 1, wherein the first pipe body is butted with the drainage main body part by: the first end or the tail end of the box body is provided with a cavity, the first pipe bodies in the box body are communicated with each other in the front and at the back, branch pipes communicated with the first pipe bodies are arranged in the cavity, the branch pipes are communicated with the second pipe bodies, the first ends of the second pipe bodies are communicated with the drainage main body part, the second ends of the second pipe bodies extend to a road green belt, the first ends and the second ends of the second pipe bodies are provided with valve bodies, and the valve bodies are controlled by the controller.

5. A roadbed reinforcing structure of claim 1, wherein a plurality of connecting pipes communicated with the first pipes are arranged between the first pipes, and the first pipes and the connecting pipes are of a spiral structure.

6. The roadbed reinforcing structure of claim 1, wherein the inner sides and the outer sides of the box body and the cover body are provided with a waterproof layer and an anticorrosive layer, and the height of the box body is set to be 10-15 cm.

7. A method of constructing a highway subgrade reinforcement structure according to any one of claims 1-6, said method comprising the steps of:

step 1, leveling the bottom end of the roadbed, placing the reinforcing bottom plates, enabling the reinforcing bottom plates to be longitudinally arranged end to end along the highway, enabling first pipe bodies in the front box body and the rear box body to be communicated, and meanwhile ensuring that the top ends of the box bodies are parallel to the bottom end of the roadbed;

step 2, installing the drainage main body parts on two sides of the roadbed, wherein one side, close to the box body, of the drainage main body part is higher than the other side of the drainage main body part, and installing the drainage plate and a second pipe body;

step 3, butting the sub pipe and the second pipe body, and pouring concrete into the box body until the sub pipe and the second pipe body are flush with the top end of the box body;

step 4, enabling the column body to penetrate through the hole, enabling the cover plate to be buckled on the box body, fixedly connecting the cover plate and the box body, and pouring concrete above the cover plate and in the column body to form a first concrete layer, wherein the top end of the first concrete layer is 2-3 cm higher than that of the column body;

and 5, after the first concrete layer is maintained, laying a lifting layer, a sand layer, a graded gravel layer, a steel wire mesh layer and an asphalt layer above the first concrete layer in sequence until the first concrete layer is flush with the road surface.

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