CN111395083A - Anti-settlement highway subgrade reinforcing structure and construction method - Google Patents

Abstract

The invention discloses a settlement-prevention highway subgrade reinforcing structure and a construction method, which comprises the following steps: a lifting layer; the first reinforcing layer is arranged on the lifting layer and comprises a plurality of reinforcing bottom plates and first concrete layers arranged 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 water outlets on two sides of the roadbed 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 to form a first concrete layer positioned at the top end of the cover plate; a second reinforcing layer; the control part comprises a controller and a settlement intelligent sensing module connected to the controller, and adjusts an included angle between the pressure rising and reducing plate and the road surface to compensate settlement of the road surface. The invention effectively improves the reinforcing effect of the highway subgrade, has the function of quickly compensating pavement settlement, and is quick and labor-saving in construction and installation.

Description

Anti-settlement highway subgrade reinforcing structure and construction method

Technical Field

The invention relates to the technical field of road construction, in particular to a settlement-preventing 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 large-area settlement due to the insufficient stability of the original roadbed structure, the weight and circulation of vehicles, environmental factors and the like in the use process of the highway, so that the major potential safety hazard of driving is caused, and the settlement-prevention 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 settlement-preventing highway subgrade reinforcing structure and a construction method, which effectively improve the reinforcing effect of a highway subgrade, have the function of quickly compensating large-area settlement of a pavement and are quick and labor-saving in construction and installation.

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

the lifting layer is arranged at the bottom end of the roadbed and comprises a lifting bottom plate, lifting pressure plates and a lifting mechanism, wherein the lifting bottom plate and the lifting pressure plates are located on the lifting layer, the lifting mechanism comprises a plurality of groups of cylinders which are uniformly distributed on the top end of the lifting bottom plate, and the other ends of the cylinders are fixedly connected with the bottom ends of the lifting pressure plates.

The first reinforcing layer is arranged at the top end of the lifting and lowering pressure plate and is matched with the lifting and lowering pressure plate, the first reinforcing layer comprises a plurality of reinforcing bottom plates and first concrete layers arranged on the reinforcing bottom plates, the plurality of reinforcing bottom plates are arranged along the longitudinal direction of a highway, each reinforcing bottom plate comprises a box body and a cover plate, a first opening is arranged at 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 butted with water outlets on two sides of the roadbed 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: sand soil layer, drainage blanket, steel wire net layer, gradation metalling and pitch layer.

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 that the included angle between the pressure rising and reducing plate and the pavement is adjusted to compensate the settlement of the pavement through the expansion and contraction of the corresponding air cylinder controlled by the controller.

Preferably, the connection mode between the reinforced bottom plates is as follows: the one end symmetry of box body sets up the draw-in groove, the draw-in groove with the height of box body is isometric, the other end symmetry of box body set up with the cardboard of draw-in groove adaptation, the cardboard is T shape structure, the cardboard with during the draw-in groove assembly, the box body with adjacent the laminating of box body opposite face.

Preferably, a connecting rod is arranged between the cylinder bodies and positioned above the cover body, clamping pins matched with the cylinder bodies are arranged at two ends of the connecting rod, the clamping pins are arranged to be of annular structures, bolts are arranged on the outer sides of the clamping pins, and the height of the cylinder bodies is set to be 5-8 cm.

Preferably, the specific manner of butt joint of the first pipe body and the water outlet is as follows: the second body is including being responsible for and the son pipe, box body head end and tail end set up the cavity, the first end and the second end of son pipe set up respectively in the cavity, and with first body communicates with each other, be responsible for with the son pipe communicates with each other, the first end of being responsible for with the outlet communicates with each other, the second end of being responsible for extends to highway greenbelt, the first end and the second end of being responsible for all set up the valve body, the valve body is 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 construction method of a settlement-preventing highway subgrade reinforcement structure according to any one of the above items, comprising the steps of:

step 1, leveling the bottom end of the roadbed, placing the lifting layer, enabling the lifting layer to be arranged in an end-to-end connection mode along the longitudinal direction of the highway, and meanwhile ensuring that the top end of the lifting pressure plate is parallel to the bottom end of the roadbed.

And 2, firstly installing the box body at the top end of the pressure rising and reducing plate, then installing adjacent box bodies which are longitudinally arranged along a road, butting the sub pipe with the first pipe body, the sub pipe with the main pipe, and then pouring concrete in the box body until the box body is flush with the top end of the box body.

And 3, penetrating the column body through the hole, buckling the cover plate 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 the top end of the column body.

And 4, after the first concrete layer is maintained, paving a sand layer, a drainage layer, a steel wire mesh layer, a graded gravel 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:

according to the invention, the lifting layer is arranged at the bottom end of the roadbed, the integral structure above the lifting pressing plate can be lifted by utilizing the effect of the expansion of the air cylinder on the lifting pressing plate so as to compensate the settlement of the road surface, and the road surface under the corresponding settlement area can be lifted by controlling the extension of the air cylinder at different positions at the bottom end of the lifting pressing plate, so that the effect of quickly compensating the settlement of the road surface is achieved.

Through setting up first back up coat, 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 of cylinder through-hole carries out the secondary to the lid and fixes, through the mode to concreting in the cylinder, make the cylinder structure and the concrete structure in the box body tie as an organic whole, establish the compactness of overall structure connection, 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 outlet, thereby establish the channel of drainage, simultaneously and with through first body with the drainage storage, and with the irrigation of vegetation. 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.

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 settlement-preventing highway subgrade reinforcement structure 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 the connecting rod of 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 settlement-preventing roadbed reinforcement structure, including:

lifting layer, it sets up in the road bed bottom, lifting layer includes lifting bottom plate 10, lift clamp plate 11 and is located lifting bottom plate 10 with elevating system between the lift clamp plate 11, elevating system includes that multiunit evenly distributed is in the cylinder 12 on lifting bottom plate 10 top, the other end rigid coupling of cylinder 12 is in the bottom of lift clamp plate 11.

The first reinforcing layer is arranged at the top end of the pressure rising and reducing plate 11 and is matched with the pressure rising and reducing plate 11, the first reinforcing layer comprises a plurality of reinforcing bottom plates 20 and first concrete layers 21 arranged on the reinforcing bottom plates 20, the plurality of reinforcing bottom plates 20 are arranged along the longitudinal direction of a road, each reinforcing bottom plate 20 comprises a box body 201 and a cover plate, a first opening is arranged at the top end of the box body 201, a plurality of rows of first pipe bodies 203 which are arranged along the longitudinal direction of the road and have a hollow structure are arranged in the box body 201, and the first pipe bodies 203 are butted with water outlets at two sides of the roadbed through second pipe bodies; a column 204 with a hollow structure vertical to the bottom end of the box body 201 is arranged between the first pipe bodies 203, and concrete is poured in a gap in the box body 201; the cover plate is provided with a hole 205 matched with the column 204, and the column 204 penetrates through the hole 205, so that the cover plate is buckled at the top end of the box body 201; a second opening is formed at the top end of the column 204; concrete is poured into the column 204 and outside the column 204 to form a first concrete layer 21 at the top end of the cover plate.

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: sand layer 3, drainage blanket 4, steel wire net layer 5, graded rubble layer 6 and pitch layer 7.

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 12 in the settlement area to the controller, so that the controller controls the corresponding expansion and contraction of the air cylinder 12 to adjust the included angle between the pressure and rise pressure plate 11 and the pavement so as to compensate the settlement of the pavement.

In the above scheme, through setting up the lift layer in the bottom of road bed, the flexible effect to lift clamp plate 11 of usable cylinder 12 for the overall structure lifting of lift clamp plate 11 top, with the settlement on compensation road surface, and the extension of the different position cylinders 12 in that bottom of accessible control upgrading clamp plate, make the road surface lifting under the corresponding settlement zone, reach the effect that the rapid compensation road surface subsides, be provided with between lift clamp plate 11 and the lifting bottom plate 10 and be located the protection folded layer in the elevating system outside guarantees elevating system's life.

Through setting up first back up coat, utilize set up the concrete reinforcement in the box body 201 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 cylinder 204 runs through hole 205's mode, carry out the secondary to lid 202 and fix, through the mode to pouring concrete in the cylinder 204, make cylinder 204 structure and the concrete structure in the box body 201 concretion as an organic whole, establish the compactness that overall structure connects, and through the mode that sets up first body 203 in the box body 201, make it and second body butt joint, communicate with each other with the outlet, thereby establish the channel of drainage, simultaneously and with through first body 203 with the drainage storage, and with the irrigation of vegetation. And concrete is poured into the column 204 to form a whole with concrete outside the column 204, so that the overall stability of the roadbed is improved.

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 12 position and the quantity that starts the operation of the volume of subsiding in the zone, the controller is behind receiving cylinder 12 position and quantity information, control corresponding cylinder 12, 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 connection mode between the reinforced base plates 20 is as follows: the one end symmetry of box body 201 sets up draw-in groove 206, draw-in groove 206 with the height of box body 201 is isometric, the other end symmetry of box body 201 set up with the cardboard 207 of draw-in groove 206 adaptation, cardboard 207 is T shape structure, cardboard 207 with during the assembly of draw-in groove 206, box body 201 and adjacent the laminating of box body 201 opposite face.

In the above scheme, as shown in fig. 2, the clamping plate 207 is of a T-shaped structure, and is adapted to the clamping groove 206, and the clamping plate 207 is clamped in the clamping groove 206, so that the mounting and dismounting between the box bodies 201 are labor-saving and convenient, the interference between the box bodies 201 caused by settlement is reduced, the extension of the air cylinder 12 is greatly avoided, and the influence on the adjacent box bodies 201 is compensated when the settlement region is formed.

In a preferable scheme, a connecting rod 208 located above the cover 202 is arranged between the cylinders 204, two ends of the connecting rod 208 are provided with bayonet pins 209 adapted to the cylinders 204, the bayonet pins 209 are arranged in an annular structure, bolts are arranged outside the bayonet pins 209, and the height of the cylinders 204 is set to be 5-8 cm.

In the above solution, as shown in fig. 4, by disposing the connecting rods 208 between the columns 204, the tightness of the connection between the columns 204 is established, and at the same time, the first reinforcing layer is further reinforced as a whole; the bayonet 209 is sleeved on the column 204, and the two ends of the bayonet 209 are fixed by bolts, so that the connecting rod 208 is more labor-saving to install. The height of the column 204 ensures the fastening tightness of the cover 202, and does not affect the structure laid on the upper layer.

In a preferred embodiment, the specific manner of docking the first tube 203 with the water outlet is as follows: the second body is including being responsible for 2031 and daughter pipe 2032, box body 201 head end and tail end set up the cavity, the first end and the second end of daughter pipe 2032 set up respectively in the cavity, and with first body 203 communicates with each other, be responsible for 2031 with daughter pipe 2032 communicates with each other, be responsible for 2031 the first end with the outlet communicates with each other, be responsible for 2031 the second end and extend to highway greenbelt, be responsible for 2031 the first end and the second end all set up the valve body, the valve body is controlled by the controller.

In the above solution, as shown in fig. 2, the sub-pipe 2032 is butted with the first pipe 203, so that the connection between the main pipe 2031 and the first pipe 203 is conveniently established, the sub-pipe 2032 is disposed in the chamber, the connection between the box 201 is not affected, and meanwhile, the connection end between the sub-pipe 2032 and the first pipe 203 is protected; the mode that is responsible for 2031 and sets up is convenient for with the drainage of highway both sides, makes its entering first body 203 internal storage, 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 2033 communicated with the first pipe 203 are disposed between the first pipe 203, and both the first pipe 203 and the connecting pipes 2033 have a spiral structure.

In the above scheme, the first pipe 203 is set to be of a spiral structure, so that the volume of the stored water of the first pipe 203 is maximized in the length or width of the corresponding box 201, meanwhile, the first pipe 203 of the spiral structure plays a good reinforcing effect on the box 201, and similarly, the connecting pipe 2033 is set to be of the same spiral structure, so that the volume of the stored water is greatly expanded, and meanwhile, the connection between the first pipe 203 and the first pipe 203 is more stable.

In a preferable scheme, the inner and outer sides of the box body 201 and the cover body 202 are both provided with a waterproof layer and an anticorrosive layer, and the height of the box body 201 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 201 is convenient for when guaranteeing the water storage space that first body 203 constitutes in the box body 201, avoids the unnecessary consumptive material, leaves sufficient laying height for the layer of laying on upper strata simultaneously.

A construction method of a settlement-preventing highway subgrade reinforcement structure according to any one of the above items, comprising the steps of:

step 1, leveling the bottom end of the roadbed, placing the lifting layer, enabling the lifting layer to be arranged end to end along the longitudinal direction of the highway, and simultaneously ensuring that the top end of the lifting pressure plate 11 is parallel to the bottom end of the roadbed;

step 2, installing the box body 201 at the top end of the pressure rising and reducing plate 11, then installing the adjacent box bodies 201 arranged along the longitudinal direction of the highway, butting the sub pipe 2032 and the first pipe body 203, and the sub pipe 2032 and the main pipe 2031, and then pouring concrete in the box body 201 until the box body is flush with the top end of the box body 201;

step 3, the column body 204 penetrates through the hole 205, so that the cover plate is buckled on the box body 201 and fixedly connected with the cover plate and the box body 201, concrete is poured above the cover plate and in the column body 204 to form the first concrete layer 21, and the top end of the first concrete layer 21 is 2-3 cm higher than the top end of the column body 204;

and 4, after the first concrete layer 21 is maintained, paving a sand layer 3, a drainage layer 4, a steel wire mesh layer 5, a graded gravel 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 scheme, the installation stability of the lifting layer is ensured in a mode that the lifting layer is parallel to the roadbed; concrete is poured in the box body 201 firstly, and then the cover body 202 is buckled, so that the concrete in the box body 201 can be conveniently compacted; by arranging the lifting layer, the first reinforcing layer and the second reinforcing layer, the reinforcing effect is ensured, and the pavement settlement compensation is facilitated; the main structure formed by the lifting layer and the first reinforcing layer, the size of the main structure, the paving area and the paving position of the main structure are set according to the previous pavement settlement data, the weight and the liquidity of the vehicle after the pavement is built, and the settlement compensation effect is convenient to guarantee.

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. An anti-settlement highway subgrade reinforcement structure, comprising:

the lifting layer is arranged at the bottom end of the roadbed and comprises a lifting bottom plate, a lifting pressure plate and a lifting mechanism positioned between the lifting bottom plate and the lifting pressure plate, the lifting mechanism comprises a plurality of groups of cylinders uniformly distributed at the top end of the lifting bottom plate, and the other end of each cylinder is fixedly connected to the bottom end of the lifting pressure plate;

the first reinforcing layer is arranged at the top end of the lifting and lowering pressure plate and is matched with the lifting and lowering pressure plate, the first reinforcing layer comprises a plurality of reinforcing bottom plates and first concrete layers arranged on the reinforcing bottom plates, the plurality of reinforcing bottom plates are arranged along the longitudinal direction of a highway, each reinforcing bottom plate comprises a box body and a cover plate, a first opening is arranged at 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 butted with water outlets on two sides of the roadbed 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 sand layer, a drainage layer, a steel wire mesh layer, a graded broken stone layer and an asphalt layer;

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 that the included angle between the pressure rising and reducing plate and the pavement is adjusted to compensate the settlement of the pavement through the expansion and contraction of the corresponding air cylinder controlled by the controller.

2. The settlement-preventing roadbed reinforcement structure of claim 1, wherein the reinforcement bottom plates are connected by: the one end symmetry of box body sets up the draw-in groove, the draw-in groove with the height of box body is isometric, the other end symmetry of box body set up with the cardboard of draw-in groove adaptation, the cardboard is T shape structure, the cardboard with during the draw-in groove assembly, the box body with adjacent the laminating of box body opposite face.

3. The anti-settling highway subgrade reinforcement structure according to claim 1, wherein a connecting rod is arranged between the columns and above the cover body, clamping pins matched with the columns are arranged at two ends of the connecting rod, the clamping pins are arranged to be of annular structures, bolts are arranged on the outer sides of the clamping pins, and the height of each column is 5-8 cm.

4. A settlement-preventing highway subgrade reinforcement structure according to claim 1, wherein said first pipe is butted with said drainage port in a manner that: the second body is including being responsible for and the son pipe, box body head end and tail end set up the cavity, the first end and the second end of son pipe set up respectively in the cavity, and with first body communicates with each other, be responsible for with the son pipe communicates with each other, the first end of being responsible for with the outlet communicates with each other, the second end of being responsible for extends to highway greenbelt, the first end and the second end of being responsible for all set up the valve body, the valve body is controlled by the controller.

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

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

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

step 1, leveling the bottom end of the roadbed, placing the lifting layer, enabling the lifting layer to be longitudinally arranged end to end along the highway, and simultaneously ensuring that the top end of the lifting pressure plate is parallel to the bottom end of the roadbed;

step 2, mounting the box body at the top end of the pressure rising and reducing plate, mounting adjacent box bodies which are arranged along the longitudinal direction of a road, butting a sub pipe and the first pipe body, and a sub pipe and a main pipe, and pouring concrete in the box body until the box body is flush with the top end of the box body;

step 3, 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 the top end of the column body;

and 4, after the first concrete layer is maintained, paving a sand layer, a drainage layer, a steel wire mesh layer, a graded gravel layer and an asphalt layer above the first concrete layer in sequence until the first concrete layer is flush with the road surface.

Images