CN113403903B

CN113403903B - Roadbed reinforcing structure for highway construction and construction process thereof

Info

Publication number: CN113403903B
Application number: CN202110799589.6A
Authority: CN
Inventors: 刘侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-05-24
Anticipated expiration: 2041-07-15
Also published as: CN113403903A

Abstract

The invention discloses a roadbed reinforcing structure for highway construction and a construction process thereof. Has the advantages that: the multi-piece assembled roadbed external reinforcing component is arranged, so that the roadbed external reinforcing component is prefabricated and convenient to use, the common structure that the existing roadbed is sealed by the external reinforcing structure is changed, the external side of the roadbed is tightly attached through the movable baffle, the soil and stones can be rapidly and actively supplemented into the roadbed when the internal of the follow-up roadbed deforms or the soil and stones lose, the roadbed structure is conveniently reinforced, the service life of a road is prolonged, the road maintenance efficiency is improved, and the roadbed external reinforcing component is high in practicability.

Description

Roadbed reinforcing structure for highway construction and construction process thereof

Technical Field

The invention relates to the field of highway construction, in particular to a roadbed reinforced structure for highway construction and a construction process thereof.

Background

The roadbed is the foundation of highway engineering, which is not only the main body of a route, but also the foundation of a road surface, so that the firmness and stability of the roadbed can be guaranteed, the roadbed is reinforced mainly by the fact that the bearing capacity of the original roadbed cannot meet the requirement, the stability of the roadbed is poor, or the original soil is too soft to provide enough soil foundation strength and cannot bear the external environment and the traffic load, and the roadbed protection is to stabilize the roadbed in a biological protection or engineering protection mode so as to achieve the purpose of safety and stability.

The applicant finds that at least the following technical problems exist in the prior art: the currently used roadbed reinforcing structure is mainly used for supporting a retaining wall outside a roadbed, the retaining wall in a reinforced concrete form needs formwork erection and pouring, the construction speed is low, the reinforcing structures on two sides of the roadbed are separated from each other, the outer side supporting displacement and damage are easily caused when the load borne by the pavement is too large, meanwhile, the reinforcing structures on two sides and the upper side pavement wrap the whole roadbed, if the roadbed subsides and collapses in the subsequent use process, the roadbed or the reinforcing structures on two sides need to be damaged and then exposed out of the roadbed for repair, the construction period is long, the construction is complicated, and the service life of the road is short.

Disclosure of Invention

The invention aims to solve the problems, provides a roadbed reinforced structure for highway construction and a construction process thereof, changes the conventional structure that the roadbed is sealed by an outer side reinforced structure, and tightly adheres the outer side of the roadbed through a movable baffle plate, so that soil and stones can be rapidly and actively supplemented into the roadbed when the inner part of the follow-up roadbed deforms or the soil and stones are lost, the roadbed structure is convenient to strengthen, the service life of a road is prolonged, the maintenance efficiency of the road is improved, the practicability is high, and details are explained in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a roadbed reinforcing structure for highway construction, which comprises a roadbed and a plurality of groups of reinforcing components, wherein the groups of reinforcing components are symmetrically arranged on two sides outside the roadbed, longitudinal tie bars are longitudinally connected to the inner sides of the groups of reinforcing components positioned on the same side of the roadbed, a plurality of opposite tie bars penetrating through the roadbed are transversely connected between the longitudinal tie bars on two sides of the roadbed, and two ends of the opposite tie bars respectively extend to the opposite sides of two groups of reinforcing components;

consolidate the subassembly including the laminating the holding frame that the road bed outside set up, the inside horizontal through-hole that has run through of holding frame, the inside horizontal sliding fit of this through-hole has the baffle, the baffle middle part is transversely fixed with the guide cylinder, holding frame both sides are provided with two sets of bearing boards, and are two sets of horizontal connection runs through between the bearing board the screw rod of guide cylinder, the screw rod with guide cylinder screw-thread fit is in order to be used for driving the baffle is followed the through-hole slides.

Preferably, the four edges of the outer side of the baffle are provided with grooves, sealing strips are pasted and filled in the grooves, and the outer sides of the sealing strips are tightly attached to the inner wall of the containing frame.

Preferably, the end, far away from the roadbed, of the screw rod is parallel and level with the outer side of the bearing plate, the screw rod is matched with the bearing plate in a rotating mode, a hexagon socket is arranged at the center of one end of the outer side of the screw rod, bristles are arranged at two ends of the guide cylinder in a surrounding mode, and one end, far away from the guide cylinder, of each bristle is gathered towards the inner side and abuts against the outer side of the screw rod.

Preferably, a sliding groove extending along the slope direction of the outer side of the roadbed is formed in one side of the outer side of the containing frame, a sliding block is arranged on the other side of the containing frame corresponding to the sliding groove, the sliding groove is a T-shaped groove with an opening away from the sliding block, and the sliding block is in sliding fit with the T-shaped block of the sliding groove.

Preferably, the holding frames are close to four corners of one side of the roadbed and are provided with fixing lugs, the number of the opposite tie bars which are located between the two sets of holding frames and have the same longitudinal depth on two sides of the roadbed is two sets, the opposite tie bars comprise threaded sleeves arranged in the middle of the roadbed, pull rods are in threaded connection with two ends of each threaded sleeve, and the pull rods penetrate through one ends of the threaded sleeves and extend to the two sets of opposite sides of the holding frames respectively.

Preferably, the vertical lacing wire vertically runs through two groups of fixed ears and two groups of pull rods between the fixed ears at the same level, the pull rods and the fixed ears are in clearance fit with the vertical lacing wire, the top of the containing frame is far away from one side of the roadbed, an open groove is formed in the open groove and vertically runs through the top of the containing frame, and the width of the open groove is 2 times that of the baffle.

Preferably, the roadbed comprises a rammed earth layer and an earthen layer, the bottom side of the earthen layer and the bottom surface of the containing frame are located at the same horizontal height, the bottom of the earthen layer and the bottom of the containing frame are transversely connected with a concrete base layer, and the rammed earth layer is arranged at the top of the earthen layer.

Preferably, rammed earth layer top side with holding frame top surface looks parallel and level, just to the lacing wire top rammed earth layer outside has prefabricated geotechnological cloth, geotechnological cloth is kept away from rammed earth layer one side is fixed in holding frame side, rammed earth layer with between the holding frame the concrete waterproof layer has been pour at the geotechnological cloth top, this waterproof layer top surface with rammed earth layer top surface looks parallel and level.

The construction process of the roadbed reinforced structure for highway construction comprises the following steps:

a. before paving a soil-rock layer, a concrete base layer is poured in advance at a roadbed construction position, a plurality of groups of containing frames are correspondingly placed on the surface of the undried concrete base layer according to the width of the roadbed, the adjacent containing frames are clamped and matched with the sliding grooves in a sliding mode through the sliding blocks, so that a plurality of groups of reinforcing assemblies are sequentially positioned, and then longitudinal pull ribs and opposite pull ribs are correspondingly arranged between the reinforcing assemblies on the two sides;

b. paving a soil and stone layer in the middle of the concrete base layer between the accommodating frames on the two sides, solidifying and connecting the soil and the accommodating frames through the concrete base layer, then dumping the filling soil to the upper part of the soil and compacting the filling soil by using a compactor, compressing pores in the soil to generate settlement, and increasing the strength of the filling soil to form a compacted soil layer;

c. reserving geotextile inside the rammed earth layer, adhering the outer edge of the geotextile to the inner side of the accommodating frame above the tie bars, pouring concrete on the upper part of the geotextile to form a waterproof layer, and connecting the top side of the accommodating frame with the rammed earth layer through the concrete waterproof layer;

d. when soil and stones in the roadbed run off and subside and need maintenance, the screw rod is rotated to drive the guide cylinder and the baffle to slide along the through hole in the direction far away from the roadbed, the position of the baffle is adjusted until the open slot is in an exposed opening state, soil and stones are filled into the accommodating frame along the open slot, then the screw rod is rotated in the reverse direction to drive the guide cylinder and the baffle to slide towards the inner side, so that the soil and stones in the accommodating frame are pushed and supplemented to move towards the roadbed position through the baffle, and the missing soil and stones are filled to the roadbed outer side by utilizing the reinforcing assembly.

Has the advantages that: the multi-piece assembled roadbed external reinforcing component is arranged, prefabricated and produced, and transported to a road construction area for assembly, so that the roadbed is convenient to use, the common structure that the existing roadbed is sealed by the external reinforcing structure is changed, the external side of the roadbed is tightly attached by the movable baffle, so that soil and stones can be rapidly and actively supplemented to the interior of the roadbed when the interior of the follow-up roadbed deforms or the soil and stones are lost, the roadbed structure is convenient to reinforce, the service life of the road is prolonged, the road maintenance efficiency is improved, and the practicability is high.

Drawings

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

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

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

FIG. 4 is a schematic view of the structure of a tie bar of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 according to the present invention;

FIG. 6 is a schematic structural view of a reinforcement assembly of the present invention;

FIG. 7 is a schematic, disassembled structural view of the reinforcement assembly of the present invention;

fig. 8 is a schematic view of the structure of the roadbed according to the invention.

The reference numerals are explained below:

1. a roadbed; 101. tamping a soil layer; 102. a layer of terrane; 103. geotextile; 2. a reinforcement assembly; 201. an accommodating frame; 201a, a chute; 201b, a sliding block; 202. a support plate; 203. a baffle plate; 203a, a sealing strip; 204. a guide cylinder; 204a, bristles; 205. a screw; 205a, a hexagon socket; 206. fixing the ear; 207. an open slot; 208. a through hole; 3. longitudinally stretching a rib; 4. stretching the ribs; 401. a pull rod; 402. and (4) a threaded sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1 to 8, the invention provides a roadbed reinforcement structure for highway construction, which comprises a roadbed 1 and a plurality of groups of reinforcement assemblies 2, wherein the groups of reinforcement assemblies 2 are symmetrically arranged on two outer sides of the roadbed 1, longitudinal tie bars 3 are longitudinally connected on the inner sides of the groups of reinforcement assemblies 2 positioned on the same side of the roadbed 1, a plurality of counter tie bars 4 penetrating through the roadbed 1 are transversely connected between the longitudinal tie bars 3 on two sides of the roadbed 1, two ends of the counter tie bars 4 respectively extend to opposite sides of the two groups of reinforcement assemblies 2, the reinforcement assemblies 2 on two sides of the roadbed 1 are connected by matching the counter tie bars 4 with the longitudinal tie bars 3, and the groups of reinforcement assemblies 2 on the outer side of the roadbed 1 are combined to form a whole so as to improve the protection stability of the roadbed 1;

the reinforcing component 2 comprises a containing frame 201 arranged on the outer side of a roadbed 1, a through hole 208 transversely penetrates through the containing frame 201, a baffle plate 203 is transversely matched and matched in the through hole 208 in a sliding manner, grooves are arranged on four sides of the outer side of the baffle plate 203, sealing strips 203a are adhered and filled in the grooves, the outer side of each sealing strip 203a is tightly adhered to the inner wall of the containing frame 201, soil stones of the roadbed 1 are prevented from leaking from a gap between the baffle plate 203 and the containing frame 201, a guide cylinder 204 is transversely fixed in the middle of the baffle plate 203, two groups of bearing plates 202 are arranged on two sides of the containing frame 201, a screw 205 penetrating through the guide cylinder 204 is transversely connected between the two groups of bearing plates 202, the screw 205 is in threaded fit with the guide cylinder 204 and is used for driving the baffle plate 203 to slide along the through hole 208, one end, far away from the roadbed 1, of the screw 205 is flush with the outer side of the bearing plates 202, the screw 205 is matched with the bearing plates 202 in a rotating manner, and an inner hexagonal hole 205a center is arranged at one end on the outer side of the screw 205, so that the screw 205 clamped into the inner belt of the hexagonal socket 205a through the hexagonal wrench rotates, the two ends of the guide cylinder 204 are all provided with the bristles 204a in a surrounding manner, one end of the bristles 204a, which is far away from the guide cylinder 204, is gathered towards the inner side and is abutted against the outer side of the screw 205, the joint of the outer side of the screw 205 and the end of the guide cylinder 204 is cleaned through the bristles 204a, soil and stones on the outer side of the screw 205 are prevented from entering the guide cylinder 204 along with the screw 205, and the outer thread of the screw 205 is protected.

As an optional implementation manner, a sliding groove 201a extending along the outer side of the roadbed 1 in the inclined direction is arranged on one outer side of the accommodating frame 201, a sliding block 201b is arranged on the other side of the accommodating frame 201 corresponding to the sliding groove 201a, the sliding groove 201a is a T-shaped groove with an opening far away from the sliding block 201b, the sliding block 201b is a T-shaped block in sliding fit with the sliding groove 201a, and the sliding block 201b on the outer side of the accommodating frame 201 is matched with the sliding groove 201a on the outer side of the accommodating frame 201 at an adjacent position, so that a plurality of groups of accommodating frames 201 at the adjacent position are assembled and connected;

four corners of one side, close to the roadbed 1, of each containing frame 201 are provided with fixing lugs 206, the quantity of the opposite tie bars 4 which have the same longitudinal depth and are positioned between the two groups of containing frames 201 on the two sides of the roadbed 1 is two, each opposite tie bar 4 comprises a threaded sleeve 402 arranged in the middle of the roadbed 1, two ends of each threaded sleeve 402 are in threaded connection with a tie bar 401, one ends of the two tie bars 401, penetrating out of the threaded sleeves 402, extend to the opposite sides of the two groups of containing frames 201 respectively, when the reinforcing structure protects the roadbeds 1 with different widths, the lengths of the tie bars 401, extending out of the threaded sleeves 402, are adjusted by rotating the tie bars 401, so that the overall length of the opposite tie bars 4 is adjusted, and the reinforcing structure is convenient to be applied to reinforcing the roadbeds 1 with different widths;

the longitudinal tie bar 3 longitudinally penetrates through the two groups of fixing lugs 206 at the same horizontal height and the pull rod 401 between the two groups of fixing lugs 206, the pull rod 401 and the fixing lugs 206 are in clearance fit with the longitudinal tie bar 3, an open slot 207 is formed in one side, far away from the roadbed 1, of the top of the containing frame 201, the open slot 207 vertically penetrates through the top of the containing frame 201, the width of the open slot 207 is 2 times of that of the baffle 203, after the baffle 203 moves to be staggered with the open slot 207 in the direction far away from the roadbed 1, the open position of the top of the open slot 207 is ensured to be in an exposed open state, and maintenance personnel can conveniently introduce soil and stones into the containing frame 201 to fill and reinforce the roadbed 1 with the soil and stones;

the roadbed 1 comprises a rammed earth layer 101 and an earth stone layer 102, the bottom side of the earth stone layer 102 and the bottom surface of the containing frame 201 are positioned at the same horizontal height, the earth stone layer 102 and the bottom of the containing frame 201 are transversely connected with a concrete base layer, the concrete base layer is used for curing and connecting the soil stone layer 102 and the bottom of the accommodating frame 201, so that the structural position stability of the accommodating frame 201 is improved, the rammed soil layer 101 is arranged at the top of the soil stone layer 102, the top side of the rammed soil layer 101 is flush with the top surface of the accommodating frame 201, and the geotechnical cloth 103 is prefabricated at the outer side of the rammed earth layer 101 above the tie bar 4, one side of the geotechnical cloth 103 far away from the rammed earth layer 101 is fixed at the side edge of the accommodating frame 201, a concrete waterproof layer is poured at the top of the geotechnical cloth 103 between the rammed earth layer 101 and the accommodating frame 201, the top surface of the waterproof layer is flush with the top surface of the rammed earth layer 101, the waterproof layer is used for covering and protecting the top sides of the roadbed 1 and the reinforcing component 2, and external rainwater and sundries are prevented from entering the inner side of the gap between the roadbed 1 and the reinforcing component 2.

a. before paving the earth stone layer 102, a concrete base layer is poured in advance at the construction position of the roadbed 1, a plurality of groups of containing frames 201 are correspondingly placed on the surface of the undried concrete base layer according to the width of the roadbed 1, the adjacent containing frames 201 are clamped and matched with the sliding grooves 201a in a sliding mode through the sliding blocks 201b, so that a plurality of groups of reinforcing assemblies 2 are sequentially positioned, and then the longitudinal tie bars 3 and the pair of tie bars 4 are correspondingly arranged between the reinforcing assemblies 2 on the two sides;

b. paving the soil and rock layer 102 in the middle of the concrete base layer between the accommodating frames 201 on the two sides, solidifying and connecting the soil and rock layer 102 with the accommodating frames 201 through the concrete base layer, then dumping filling soil to the upper part of the soil and rock layer 102, and using a compactor to forcibly tamp and compact the filling soil, wherein pores in a soil body are compressed to generate settlement, and the strength of the filling soil is increased to form a tamped soil layer 101;

c. reserving the geotextile 103 in the rammed earth layer 101, adhering the outer side edge of the geotextile 103 to the inner side of the accommodating frame 201 above the tie bars 4, pouring concrete on the upper part of the geotextile 103 to form a waterproof layer, and connecting the top side of the accommodating frame 201 with the rammed earth layer 101 through the concrete waterproof layer;

d. when the soil and stones in the roadbed 1 are lost and settled and need maintenance, the screw 205 is rotated to drive the guide cylinder 204 and the baffle plate 203 to slide along the through hole 208 in the direction far away from the roadbed 1, the position of the baffle plate 203 is adjusted until the open slot 207 is in an exposed and opened state, the soil and stones are filled into the accommodating frame 201 along the open slot 207, then the screw 205 is rotated reversely to drive the guide cylinder 204 and the baffle plate 203 to slide inwards, so that the soil and stones supplemented into the accommodating frame 201 are pushed by the baffle plate 203 to move towards the position of the roadbed 1, and the reinforcement assembly 2 is used for filling the missing soil and stones to the outer side of the roadbed 1.

Through setting up 1 outer reinforcement assembly 2 of multi-disc pin-connected panel road bed, prefabricated production transports road construction region and assembles, it is convenient to use, and change current road bed 1 by outside reinforced structure confined common structure, paste through mobilizable baffle 203 the road bed 1 outside tightly, be convenient for follow-up 1 inside deformation of road bed or earth and rock loss when supplying earth and rock to 1 inside initiative of road bed fast, be convenient for strengthen road bed 1 structure, prolong road service life, improve road maintenance efficiency, therefore, the clothes hanger is strong in practicability.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a road bed reinforced structure for highway construction which characterized in that: the reinforcing component comprises a roadbed (1) and a plurality of groups of reinforcing components (2), wherein the groups of reinforcing components (2) are symmetrically arranged on two outer sides of the roadbed (1), longitudinal tie bars (3) are longitudinally connected on the inner sides of the groups of reinforcing components (2) positioned on the same side of the roadbed (1), a plurality of counter tie bars (4) penetrating through the roadbed (1) are transversely connected between the longitudinal tie bars (3) on two sides of the roadbed (1), and two ends of each counter tie bar (4) respectively extend to the opposite sides of two groups of reinforcing components (2);

the reinforcing component (2) comprises an accommodating frame (201) which is attached to the outer side of the roadbed (1), a through hole (208) transversely penetrates through the inside of the accommodating frame (201), a baffle (203) is transversely matched with the inside of the through hole (208) in a sliding manner, a guide cylinder (204) is transversely fixed in the middle of the baffle (203), two groups of bearing plates (202) are arranged on two sides of the accommodating frame (201), a screw rod (205) penetrating through the guide cylinder (204) is transversely connected between the two groups of bearing plates (202), and the screw rod (205) is in threaded fit with the guide cylinder (204) to drive the baffle (203) to slide along the through hole (208);

four edges of the outer side of the baffle (203) are provided with grooves, sealing strips (203 a) are adhered and filled in the grooves, and the outer sides of the sealing strips (203 a) are adhered to the inner wall of the accommodating frame (201);

one end, far away from the roadbed (1), of the screw (205) is flush with the outer side of the bearing plate (202), the screw (205) is in running fit with the bearing plate (202), a hexagon socket (205 a) is arranged in the center of one end, far away from the roadbed (1), of the outer side of the screw (205), bristles (204 a) are arranged at two ends of the guide cylinder (204) in a surrounding mode, and one end, far away from the guide cylinder (204), of each bristle (204 a) is gathered towards the inner side and tightly abutted against the outer side of the screw (205);

a sliding groove (201 a) extending along the outer side inclined direction of the roadbed (1) is formed in one outer side of the accommodating frame (201), a sliding block (201 b) is arranged on the other side of the accommodating frame (201) corresponding to the sliding groove (201 a), the sliding groove (201 a) is a T-shaped groove with an opening far away from the sliding block (201 b), and the sliding block (201 b) is a T-shaped block in sliding fit with the sliding groove (201 a);

four corners of one side, close to the roadbed (1), of each accommodating frame (201) are provided with fixing lugs (206), the number of the tie bars (4) which have the same longitudinal depth and are positioned between the two groups of accommodating frames (201) on the two sides of the roadbed (1) is two, each tie bar (4) comprises a threaded sleeve (402) arranged in the middle of the roadbed (1), two ends of each threaded sleeve (402) are in threaded connection with pull rods (401), and one ends of the two pull rods (401) penetrating through the threaded sleeves (402) respectively extend to the opposite sides of the two groups of accommodating frames (201);

indulge lacing wire (3) and vertically run through two sets of same level fixed ear (206) and two sets of draw bar (401) between fixed ear (206), draw bar (401) with fixed ear (206) all with indulge lacing wire (3) clearance fit, holding frame (201) top is kept away from roadbed (1) one side is provided with open slot (207), and this open slot (207) is vertical to be run through holding frame (201) top, just open slot (207) width does baffle (203) thickness is 2 times.

2. The roadbed reinforcing structure for highway construction according to claim 1, wherein: the roadbed (1) comprises a rammed earth layer (101) and an earthen layer (102), wherein the bottom side of the earthen layer (102) is located at the same horizontal height with the bottom surface of the containing frame (201), the earthen layer (102) is transversely connected with a concrete base layer at the bottom of the containing frame (201), and the rammed earth layer (101) is arranged at the top of the earthen layer (102).

3. The roadbed reinforcing structure for highway construction according to claim 2, wherein: rammed earth layer (101) top side with holding frame (201) top surface looks parallel and level, just to lacing wire (4) top rammed earth layer (101) outside prefabricated has geotechnological cloth (103), geotechnological cloth (103) are kept away from rammed earth layer (101) one side is fixed in holding frame (201) side, rammed earth layer (101) with between holding frame (201) geotechnological cloth (103) top has pour the concrete waterproof layer, this waterproof layer top surface with rammed earth layer (101) top surface looks parallel and level.

4. The construction process of the roadbed reinforcement structure for highway construction according to claim 3, which comprises the following steps:

a. before paving a soil-stone layer (102), a concrete base layer is poured in advance at the construction position of a roadbed (1), a plurality of groups of containing frames (201) are correspondingly placed on the surface of the undried concrete base layer according to the width of the roadbed (1), the adjacent containing frames (201) are clamped with a sliding groove (201 a) through a sliding block (201 b) in a sliding fit manner, so that a plurality of groups of reinforcing components (2) are sequentially positioned, and then longitudinal tie bars (3) and opposite tie bars (4) are correspondingly installed between the reinforcing components (2) on two sides;

b. paving a soil and stone layer (102) in the middle of the concrete base layer between the accommodating frames (201) at two sides, solidifying and connecting the soil and stone layer (102) with the accommodating frames (201) through the concrete base layer, then dumping filling soil to the upper part of the soil and stone layer (102), and forcibly ramming and compacting the filling soil by using a compactor, wherein pores in a soil body are compressed to generate settlement, and the strength of the filling soil is increased to form a rammed soil layer (101);

c. reserving the geotextile (103) in the rammed earth layer (101), adhering the outer side edge of the geotextile (103) to the inner side of the accommodating frame (201) above the tie bars (4), pouring concrete on the upper part of the geotextile (103) to form a waterproof layer, and connecting the top side of the accommodating frame (201) with the rammed earth layer (101) through the concrete waterproof layer;

d. when the soil and stones in the roadbed (1) are lost and subsided and need maintenance, the screw (205) is rotated to drive the guide cylinder (204) and the baffle (203) to slide along the through hole (208) in the direction far away from the roadbed (1), the position of the baffle (203) is adjusted until the open slot (207) is in an exposed and opened state, the soil and stones are filled into the accommodating frame (201) along the open slot (207), then the screw (205) is rotated reversely to drive the guide cylinder (204) and the baffle (203) to slide inwards, so that the soil and stones supplemented into the accommodating frame (201) are pushed by the baffle (203) to move towards the position of the roadbed (1), and the reinforcement assembly (2) is utilized to fill the missing soil and stones to the outer side of the roadbed (1).