A kind of assembled road and construction method thereof

Abstract

The present invention provides an assembled road, which takes the structural layer and joints of the pavement structure as the research object, forms a comprehensive and complete set of assembled road technical solutions, solves the diseases that occur in traditional road projects, and the surface layer has the characteristics of recycling and reuse. An assembled road is provided, including: a base layer, which is arranged on the top of the roadbed; a supporting anchor with anchor bars embedded therein, which is arranged along the width direction of the base layer; a buffer plate, which is fitted with the top surface of the supporting anchor after the anchor bars pass through it; a prefabricated plate, which is provided with anchor holes that match the anchor bars; the prefabricated plate is provided with force-transmitting steel bars and steel pipes on the opposite side end faces along the width direction of the prefabricated plate; the side end faces of the prefabricated plate along the length direction are provided with an opening on one side, and two adjacent prefabricated plates are fitted, and the openings on both sides are correspondingly spliced, and a pull rod is provided inside. The present invention also discloses a construction method for an assembled road.

Description

Technical Field

[0001] The present invention relates to the technical field of assembled buildings, and in particular to an assembled road and a construction method thereof. Background Art

[0002] Cement concrete pavement and reinforced concrete pavement are suitable for various traffic load levels and are widely used in road projects. Their pavement structures are mainly divided into surface layer, base layer and other structural layers. During the construction stage, the surface layer concrete of the pavement structure is generally cast-in-place, and the maintenance time is relatively long; some types of base layers cause environmental problems such as dust during the mixing and paving process. During the operation stage, road diseases such as surface layer cracks and joint mud pumping often occur.

[0003] Prefabricated buildings have obvious advantages in terms of quality and progress. Prefabricated components produced in factories have stable product quality; components are assembled on site, saving processes and construction time. Reinforced concrete pavement is simple in form and uniform in specifications, which meets the application conditions of prefabricated technology. The surface layer of concrete pavement is spliced ​​with prefabricated components, which is suitable for new construction and reconstruction of road projects with tight construction schedules, and can realize rapid maintenance and emergency repairs of traffic arteries. If prefabricated components are recycled, it can solve the problem of one-time use of temporary roads and the generation of construction waste after demolition.

[0004] The existing road assembly technology mainly focuses on the surface layer, and uses prefabricated panels to assemble the road surface. Internationally, assembled road panels are generally used in urban roads. The width of the panels accounts for the entire or half of the road surface, and the thickness of the panels reaches 300mm. The connection between the panels is a tongue and groove joint, and a large bearing capacity is achieved through prestressing, but the cost is high and the application is limited. At present, assembly technology is applied in domestic road projects. The prefabricated panels cannot be tightly combined with the lower base or roadbed, and there is no reliable connection at the joints. It is not suitable for high-grade roads and is mostly temporary construction roads. The existing technology also has a base assembly technology for roads. The base is composed of prefabricated blocks embedded on site, wrapped with geogrids on all sides, and the gaps in the middle of the blocks are filled with grouting. The force analysis is complicated, the construction process is more, and the cost is high. Summary of the invention

[0005] The present invention aims to solve the problem in the prior art that the structural layer and joints of the pavement structure are taken as the research objects, form a comprehensive and complete technical solution for prefabricated roads, solve the defects occurring in traditional road projects, and the surface layer has the characteristics of recycling and reuse, and provide a prefabricated road and its construction method.

[0006] The technical solution adopted by the present invention is:

[0007] An assembled road, comprising:

[0008] Base layer, set on top of the roadbed;

[0009] A supporting anchor is arranged along the width direction of the base layer and embedded in the base layer, and a plurality of anchor bars are arranged on the top surface of the supporting anchor along the length direction thereof;

[0010] A buffer plate, which is passed through by the anchor bar and is fitted with the top of the supporting anchor;

[0011] A plurality of prefabricated plates, each of which is provided with a plurality of anchor holes matched with the anchor bars, two of the prefabricated plates are provided along the width direction of the base layer, and a plurality of the prefabricated plates are provided along the length direction of the base layer;

[0012] The prefabricated plate is provided with force-transmitting steel bars on one end surface along the width direction thereof, and a steel pipe matching the force-transmitting steel bars is provided on the other end surface thereof;

[0013] The prefabricated board is provided with a plurality of openings on its side end surface along the length direction. When two adjacent prefabricated boards are attached, the openings on the two prefabricated boards are correspondingly spliced, and a pull rod is provided inside.

[0014] Optionally, the size of the bottom end surface of the supporting anchor is larger than the size of the top end surface of the supporting anchor, and the anchor bar is arranged on the top end surface of the supporting anchor.

[0015] Optionally, at least two anchor bars form a group and are evenly arranged on the top end surface of the supporting anchor.

[0016] Optionally, the opening is a dovetail groove; and the pull rod has a structure with large ends and a small middle.

[0017] Optionally, arc-shaped notches are provided on opposite side walls of the prefabricated panels along the width direction thereof, and after two adjacent prefabricated panels are bonded together, the arc-shaped notches on the two adjacent prefabricated panels form the anchoring holes.

[0018] Optionally, half the length of the steel pipe and the force-transmitting steel bars are pre-buried in the prefabricated panel.

[0019] Optionally, the prefabricated panel has rounded corners at its top edge.

[0020] A method for constructing an assembled road comprises the following steps:

[0021] S01. Install the buffer plate to the top of the supporting anchor;

[0022] S02. Lay the supporting anchors according to the preset distance;

[0023] S03, install the precast slab to the top of the supporting anchor, and the anchor bars on the supporting anchor are installed and located in the anchor holes on the precast slab, so that a casting space is formed between the precast slab and the roadbed, and the force-transmitting steel bars at the ends of two adjacent precast slabs are matched with the steel pipes;

[0024] S04. When pouring the base layer, select the anchor hole on the precast plate, the dovetail groove or the gap between the end of the precast plate and the roadbed as the pouring channel;

[0025] S05. Place the tie rod in the dovetail groove between two adjacent prefabricated panels;

[0026] S06. When the road operation period ends, the prefabricated panels are recycled.

[0027] Optionally, the material of the base layer includes engineering waste soil and surplus soil, which are mixed with a curing agent, an additive and water, and are in a semi-rigid state after being cast.

[0028] Optionally, before placing the tie rod in step S05, the dovetail groove on the prefabricated board is pre-filled with a caulking material or a grouting material; when the caulking material or the grouting material is filled, the anchor hole is also filled.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The surface layer adopts modular and standardized prefabricated panels, which can be mass-produced to reduce costs. Prefabricated panels are easy to install, save pouring and maintenance links, save construction time, and can be put into operation as soon as possible.

[0031] 2. The base layer uses solidified soil materials with high construction efficiency. The main materials are surplus soil and abandoned soil, which is green, environmentally friendly and cost-saving. It has good volume stability and impermeability, and its physical properties meet the requirements of the road for the base layer.

[0032] 3. The force transmission device of the horizontal joint of the surface layer can improve the installation efficiency and enhance the limiting function. The tie device of the longitudinal joint can ensure the connection effect of the joint. By effectively limiting the displacement and spread of the surface layer in both the vertical and horizontal directions, its stability in the horizontal direction is enhanced, and common road diseases such as opening, slurry overflow and mud pumping in the joint area are solved.

[0033] 4. The supporting anchors connect the surface layer and are embedded in the base layer to strengthen the vertical stability of the panels and joints of the surface layer, and solve common road diseases such as panel suspension, warping, and cracking.

[0034] 5. During the construction phase, the support anchors support the precast slabs to form a pouring space for the base layer, achieving a good combination of the surface layer and the base layer; during the operation phase, the support anchors change the supporting function to the anchoring function, achieving the integrity of the road structure and uniform load distribution.

[0035] 6. The prefabricated panels on the surface layer are recyclable. If the road is not in use, the node constraints can be released by drilling and coring to achieve the recycling of the prefabricated panels, further saving resources and spreading costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a perspective structural diagram of the prefabricated road.

[0038] Figure 2 This is a schematic diagram of the overall structure of the prefabricated road.

[0039] Figure 3 Schematic diagram of the split structure of the prefabricated road.

[0040] Figure 4 This is a schematic diagram of the structure of the prefabricated panels of the assembled road.

[0041] Figure 5 The schematic diagram of the structure of the prefabricated panel of the assembled road has chamfered corners.

[0042] Reference numerals:

[0043] 1. Base layer; 2. Support anchors; 21. Anchor bars; 3. Buffer plates; 4. Precast plates; 41. Anchor holes; 42. Openings; 43. Arc-shaped notches; 44. Force-transmitting steel bars; 45. Steel pipes; 5. Pull rods. DETAILED DESCRIPTION

[0044] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0048] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the present invention provides an assembled road, comprising: a base layer 1, a supporting anchor 2 arranged in the base layer 1, a buffer plate 3 arranged on the top of the supporting anchor 2, and a prefabricated plate 4 arranged on the buffer plate 3.

[0050] The base layer 1 is arranged on the top of the roadbed. The support anchor 2 is arranged along the width direction of the base layer 1 and embedded in the base layer 1. The support anchor 2 is provided with a plurality of anchor bars 21 along its length direction. The buffer plate 3 is fitted with the top of the support anchor 2 after being passed through by the anchor bars 21. The precast plate 4 is provided with a plurality of anchor holes 41 matching with the anchor bars 21. Two precast plates 4 are arranged along the width direction of the base layer 1, and a plurality of precast plates 4 are arranged along the length direction of the base layer 1. The precast plate 4 is provided with a force-transmitting steel bar 44 on one side end face along its width direction, and a steel pipe 45 matching with the force-transmitting steel bar 44 on the other side end face; the precast plate 4 is provided with a plurality of openings 42 on its side end face along its length direction. When two adjacent precast plates 4 are fitted, a pull rod 5 is provided in the corresponding spliced ​​openings 42 on the two precast plates 4.

[0051] The precast panels 4 are installed on the supporting anchors 2 so that the precast panels 4 form the road surface layer. The precast panels 4 are the main load-bearing layer and adopt a reinforced concrete structure. The precast panels 4 are spliced ​​to form an integral surface layer, which is designed with fatigue fracture caused by the combined effect of traffic load and temperature gradient as the design index and should meet the requirements of stiffness, strength and durability. The concrete bending tensile strength of the surface layer is selected according to the road standard, and the ability of the surface layer to resist uneven deformation is improved by configuring reinforced steel bars. The concrete bending tensile strength of the precast panels 4 shall not be less than 4.5MPa.

[0052] The reinforcing steel bars in the prefabricated panel 4 are arranged in two directions, and additional steel bars are added to reinforce the weak stress areas such as corners and edges. The prefabricated panel 4 can be mass-produced to dilute the production cost. The prefabricated form is easy to install, which can save the on-site maintenance (referring to the process of hardening concrete after pouring) and greatly save construction time.

[0053] At the transverse joints, the force-transmitting steel bars 44 and the steel pipes 45 are connected together, and the connection is strengthened by the anchor holes 41 at the slots. After grouting at the longitudinal joints, the tie rods 5 are placed to form a connection. Reasonable jointing methods are proposed at the connection parts of the prefabricated panels 4 to avoid problems such as mud overflow, mud pumping, opening and misalignment at the joints, and to avoid structural damage at the joints. The constraints at the joints can avoid the instability of the structural layer caused by the lateral and longitudinal dispersion of the road surface during use.

[0054] A buffer plate 3 is attached to the top of the support anchor 2. The buffer plate 3 is an extruded polystyrene board, and a plurality of anchor bars 21 are arranged according to the anchoring requirements. The buffer plate 3 has good deformation capacity, which can prevent the support anchor 2 from forming a rigid support during the operation phase, affecting the uniformity of the load and reaction force distribution.

[0055] The prefabricated board 4 has circular anchor holes 41 and arc-shaped notches 43 reserved at positions corresponding to the anchor bars 21 on the board surface and board ends. After the base layer 1 is constructed, grouting material is filled in the anchor holes 41 and the arc-shaped notches 43 to form anchor nodes.

[0056] During the construction phase, the supporting anchor 2 is laid along the road direction and the precast panel 4 is installed on the top. At this time, the top anchor 21 of the supporting anchor 2 is treated with anti-corrosion in the section passing through the buffer plate 3 and extends into the anchor hole 41 and the arc-shaped notch 43 of the precast panel 4.

[0057] The base layer 1 is cast in situ with solidified soil. Solidified soil uses engineering surplus soil and abandoned soil as the main material, which has the advantages of environmental protection and low cost. Solidified soil has good volume stability and impermeability, and is an ideal base layer 1 material. It can meet the requirements of different grades of roads and can achieve good combination and coordinated deformation with the surface layer.

[0058] In another embodiment, if Figure 1 and Figure 3 As shown, the cross section of the supporting anchor 2 is an isosceles trapezoidal structure, and the anchor bar 21 is arranged on the top end surface of the supporting anchor 2.

[0059] The support anchor 2 is a long strip structure, and its cross-section is small at the top and large at the bottom. The overall height of the support anchor 2 is determined according to the designed thickness of the base layer 1, and a casting space can be formed between the precast slab 4 and the lower roadbed. The cross-sectional width of the support anchor 2 is determined according to factors such as the arrangement of the anchor bar 21.

[0060] The supporting anchor 2 is embedded in the base layer 1, and the prefabricated slab 4 is anchored and tied by anchor bars 21 to enhance the stability in the vertical direction.

[0061] In another embodiment, if Figure 3 As shown, in order to ensure the structural continuity of the connection, at least two anchor bars 21 form a group and are evenly arranged on the supporting anchor 2.

[0062] In another embodiment, if Figure 2 As shown, in order to enhance the connection effect of the longitudinal seam and facilitate the installation of the pull rod 5, the opening 42 is a dovetail groove.

[0063] In another embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, in order to enhance the connection effect of two adjacent prefabricated panels 4 at the transverse joint, arc-shaped grooves 43 are provided on the opposite side walls of the prefabricated panels 4 along the width direction. After the two adjacent prefabricated panels 4 are fitted together, the arc-shaped grooves 43 on the two adjacent prefabricated panels 4 form the anchoring holes 41.

[0064] In another embodiment, if Figure 4 As shown, in order to form a limiting effect and force transmission performance at the transverse joint after two adjacent prefabricated panels 4 are spliced, half the length of the steel pipe 45 and the force transmission steel bar 44 are pre-buried in the prefabricated panel 4.

[0065] In another embodiment, if Figure 5 As shown, in order to avoid stress concentration at the top edge of the prefabricated panel 4, a rounded corner is provided at the top edge of the prefabricated panel 4.

[0066] A method for constructing an assembled road comprises the following steps:

[0067] S01, installing the buffer plate 3 to the top of the supporting anchor 2;

[0068] S02, laying the supporting anchors 2 according to the preset distance;

[0069] S03. Install the precast panel 4 to the top of the supporting anchor 2. After installation, the anchor bars 21 on the supporting anchor 2 are located in the anchor holes 41 on the precast panel 4, so that a casting space is formed between the precast panel 4 and the roadbed; at the same time, the force transmission steel bars 44 of the precast panel 4 extend into the steel pipes 45 of the adjacent precast panel 4.

[0070] S04. When pouring the base layer 1, the anchor hole 41 on the precast plate 4, the dovetail groove or the gap between the precast plate 4 and the roadbed is selected as the pouring channel; it should be noted that the gap is the gap on the side of the precast plate 4, and the base layer 1 has a side template;

[0071] S05, placing the tie rod 5 into the dovetail groove between two adjacent precast panels 4;

[0072] S06. When the road operation period ends, the prefabricated panels 4 are recycled.

[0073] In another embodiment, the material of the base layer 1 includes engineering waste soil and surplus soil, which are mixed with a curing agent, an additive and water to form solidified soil, which is in a semi-rigid state after being cast.

[0074] In another embodiment, before placing the tie rod 5 in step S05, the dovetail groove on the prefabricated panel 4 is filled with a caulking material or a grouting material.

[0075] It should be noted that the anchor holes 41 on the board surface of the prefabricated board 4 and the anchor holes 41 formed at the board edge also need to be filled with grouting material.

[0076] More specific construction steps are:

[0077] According to the project characteristics, the length, width and thickness of the precast panel 4 are determined. The maximum size and weight of the overall precast component should meet the requirements of production, transportation and on-site hoisting. The plane size of the precast panel 4 shall not be greater than 25㎡. The width of the precast panel 4 is determined according to the road width, and the value is 3~4.5m. If the road width exceeds this range, half the road width is taken, and the longitudinal joint is located at the center line of the road, avoiding the wheel track. The length and thickness of the precast panel 4 are positively correlated. The length (transverse joint spacing) is generally greater than the width. The transverse joint is perpendicular to the longitudinal joint, and the transverse joints on both sides of the longitudinal joint shall not be misaligned with each other. The surface layer thickness is calculated based on the load, temperature fatigue stress and maximum load, temperature stress, and meets the minimum value in the reference range of the surface layer thickness according to the traffic grade, road grade and other indicators in the specification (JJ169-2012 Urban Road Pavement Design Code-6.3.6). The thickness of the panel above the semi-rigid base 1 shall not be less than 150mm. The right angles of the top corners of the prefabricated plate 4 are changed to oblique chamfers or arc chamfers, and the chamfers have a size of 10-20 mm on both sides.

[0078] The steel bars in the surface layer (i.e. precast slab 4) are bidirectionally reinforced. Generally, the transverse steel bars are structural steel bars connecting the longitudinal bars and preventing longitudinal cracks. They are of smaller diameter and larger spacing. Single-layer or double-layer reinforcement is selected according to design requirements. The diameter, spacing and reinforcement ratio of the steel bars meet the design requirements such as the design load level (cumulative traffic volume), and should be able to meet the relevant requirements of stress and cracks, and reinforce the edges and corners of the slab. The minimum reinforcement ratio of the steel bars in the slab is determined according to the design load level (cumulative traffic volume) and is not less than 0.5% to 1.0%.

[0079] The prefabricated panels 4 are provided with joint conditions at the end faces. At the longitudinal joint position, an opening 42 is provided at the end at the design position of the tie rod 5. The opening 42 is in the shape of a dovetail groove or the two openings 42 form a waist drum shape after two adjacent prefabricated panels 4 are connected. At the transverse joint position, a force transmission steel bar 44 is exposed at one end face, and a steel pipe 45 is provided at the corresponding position at the other end face.

[0080] The support anchor 2 is a continuous strip foundation, and its cross-section is an isosceles trapezoidal structure, with a small top and a large bottom. The overall height of the support anchor 2 is determined according to the designed thickness of the base layer 1, and a pouring space can be formed between the precast slab 4 and the lower roadbed. The cross-sectional width of the support anchor 2 is determined according to factors such as the arrangement of the anchor bar 21.

[0081] A buffer plate 3 is pasted on the top of the support anchor 2. The buffer plate 3 is an extruded polystyrene board and is provided with several groups of anchor bars 21 according to the anchoring requirements. The prefabricated board 4 has anchor holes 41 and arc-shaped notches 43 reserved at positions corresponding to the anchor bars 21 on the board surface and board ends.

[0082] During the construction phase, the support anchor 2 is laid along the road direction, and the prefabricated board 4 is installed on the top. At this time, the anchor bar 21 at the top of the support anchor 2 is treated with anti-corrosion in the section of the extruded polystyrene board, and extends into the anchor hole 41 or the arc-shaped notch 43 of the prefabricated board 4. At the transverse joint of the prefabricated board 4, the force-transmitting steel bar 44 at the end is coated with asphalt and wrapped with a polyethylene film according to the requirements of the force-transmitting rod, and extends into the steel pipe 45 reserved at the corresponding position of the adjacent prefabricated board 4. At the same time, the end face arc-shaped notch 43 at the joint is also aligned. At this time, there is a clearance gap between the two adjacent prefabricated boards 4. The gap is an open seam, which is used as a clearance gap when the prefabricated board 4 expands and contracts during thermal expansion and contraction in the later use process.

[0083] After the prefabricated slab 4 is installed, the base 1 is constructed. The base 1 is cast and cured using solidified soil materials. The thickness of the base 1 is not less than 150 mm, and the plane width is 300 mm wider than the road surface on each side. The slump of the fluidized solidified soil should meet the requirements of self-leveling construction and be greater than 150 mm. During construction, the self-compacting characteristics of the fluidized solidified soil are utilized, and a suitable vibration method is selected to assist in ensuring its pouring fullness.

[0084] After the solidified soil is cured to a certain strength, filler or grouting material is poured at the joint position. Selecting fast-hardening filler helps to shorten the construction period. A tie rod 5 is placed at the dovetail groove of the longitudinal joint. The tie rod 5 is a ribbed steel bar with enlarged mechanical joints at both ends, and then the grouting material is poured. It should be noted that the tie rod 5 is a structure with large ends and small in the middle.

[0085] In other embodiments, the tie rod 5 may be placed after filling.

[0086] If a subbase 1 is provided, the subbase 1 can be poured first, and after curing and hardening to a certain strength, the construction can be carried out according to the above process. The thickness of the subbase 1 is not less than 150mm.

[0087] If the road project is a temporary road, the road surface can be removed and recycled after the operation period ends. During removal, a water drill is used to perform core cutting at the anchor hole 41 and the arc-shaped notch 43 of the prefabricated plate 4 to remove the anchor connection between the prefabricated plate 4 and the lower supporting anchor 2, thereby realizing the recycling of the prefabricated plate 4.

[0088] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled road, characterized in that: include: Base layer, set on top of the roadbed; A support anchor is arranged along the width direction of the base layer and embedded in the base layer. The top end surface of the support anchor is provided with a plurality of anchor bars along its length direction. The bottom end surface size of the support anchor is larger than the top end surface size of the support anchor. The anchor bars are arranged on the top end surface of the support anchor; A buffer plate, which is passed through by the anchor bar and is fitted with the top of the supporting anchor; A plurality of prefabricated plates, each of which is provided with a plurality of anchor holes matched with the anchor bars, two of the prefabricated plates are provided along the width direction of the base layer, and a plurality of the prefabricated plates are provided along the length direction of the base layer; The prefabricated plate is provided with force-transmitting steel bars on one end surface along the width direction thereof, and a steel pipe matching the force-transmitting steel bars is provided on the other end surface thereof; The prefabricated board is provided with a plurality of openings on its side end surface along its length direction, and the openings are dovetail grooves. When two adjacent prefabricated boards are attached, the openings on the two prefabricated boards are correspondingly spliced, and a tie rod is provided inside, and the tie rod has a structure with large ends at both ends and a small middle; Among them, the precast slab is installed to the top of the supporting anchor, and the anchor bars on the supporting anchor are installed and located in the anchor holes on the precast slab, so that a casting space is formed between the precast slab and the roadbed, and the force-transmitting steel bars at the ends of two adjacent precast slabs are matched with the steel pipes; When pouring the base layer, select the anchor holes on the precast slab, the dovetail groove or the gap between the end of the precast slab and the roadbed as the pouring channel.

2. The assembled road according to claim 1, characterized in that: At least two anchor bars form a group and are evenly arranged on the top end surface of the supporting anchor.

3. The assembled road according to claim 1, characterized in that: The prefabricated panels are provided with arc-shaped notches on opposite side walls along the width direction thereof. After two adjacent prefabricated panels are bonded together, the arc-shaped notches on the two adjacent prefabricated panels form the anchoring holes.

4. The assembled road according to claim 1, characterized in that: The steel pipe and half the length of the force-transmitting steel bars are embedded in the prefabricated panel.

5. The assembled road according to claim 1, characterized in that: The top edge of the prefabricated panel has a rounded corner.

6. A method for constructing an assembled road according to any one of claims 1 to 5, characterized in that: The following steps are involved: S01. Install the buffer plate to the top of the supporting anchor; S02. Lay the supporting anchors according to the preset distance; S03, install the precast slab to the top of the supporting anchor, and the anchor bars on the supporting anchor are installed and located in the anchor holes on the precast slab, so that a casting space is formed between the precast slab and the roadbed, and the force-transmitting steel bars at the ends of two adjacent precast slabs are matched with the steel pipes; S04. When pouring the base layer, select the anchor hole on the precast plate, the dovetail groove or the gap between the end of the precast plate and the roadbed as the pouring channel; S05. Place the tie rod in the dovetail groove between two adjacent prefabricated panels; S06. When the road operation period ends, the prefabricated panels are recycled.

7. The method for constructing an assembled road according to claim 6, characterized in that: The material of the base layer includes engineering waste soil and surplus soil, which are mixed with a curing agent, an additive and water, and is in a semi-rigid state after being cast and formed.

8. The method for constructing an assembled road according to claim 7, characterized in that: Step S05: Before placing the tie rod, fill the dovetail groove on the prefabricated board with caulking material or grouting material in advance; when filling the caulking material or grouting material, the anchor hole is also filled.

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