CN111379204A - Pile slab roadbed structure and construction method thereof - Google Patents

Abstract

The application provides a pile plate roadbed structure and a construction method thereof, and relates to the field of civil engineering. The pile plate roadbed structure is suitable for being arranged on one side of the sea pond close to the open sea side and comprises a mattress layer, and a first pressing platform and a main body which are arranged on the mattress layer in sequence from the open sea side to the sea pond; the main part is including setting up in the bottom plate additional structure on ground, pile sheet structure and road structure, the pile sheet structure is including arranging the bottom plate on the bottom plate additional structure in, side wall and drilling bored concrete pile, the one end that the bottom plate deviates from the sea pond is connected with the side wall and forms the L type with the side wall, the sea pond is close to the one end of open sea side, side wall and bottom plate form the structure groove jointly, road structure sets up at the structure inslot, the one end and the bottom plate of drilling bored concrete pile are connected, the other end passes the bottom plate additional structure in proper order, downwardly extending to holding power layer after the mattress pad layer. The pile plate roadbed structure can effectively save land and has better stability, and the construction method is simple and controllable and has high efficiency.

Description

Pile slab roadbed structure and construction method thereof

Technical Field

The application relates to the field of civil engineering, in particular to a pile plate roadbed structure and a construction method thereof.

Background

Along with the development of a fusion concept of 'traffic + tourism', more and more cities build coastal tourism roads, the coastal tourism roads not only can expand the urban space, but also can be connected in series to form rich tourism resources, and the coastal roads show more and more important positions. The coastal highway route is mainly along a coastline and inevitably passes through a soft soil area. Due to the particularity of geological formation of coastal roads, the region of the roadbed has the characteristics of deep and thick soft soil, high wave height, water depth, complex ocean tide movement and the like. If the soft soil foundation is not properly treated, larger foundation settlement and uneven settlement can be generated, and the stability and the safety of the roadbed can be greatly influenced. Under the condition, in order to ensure the stability of the roadbed, most of coastal highways at home and abroad adopt a slope type seawall, however, the slope type seawall means that the seawall area occupied by the seawall body and the dumping amount are large. In the times of dramatic increase of population and shortage of resources, the difficulty of constructing the coastal roads is increased more and more.

Disclosure of Invention

An object of the embodiments of the present application is to provide a pile slab roadbed structure and a construction method thereof, which can improve the above problems, and can effectively save the land and make the structure more stable.

In a first aspect, an embodiment of the present application provides a pile plate roadbed structure, which is suitable for being disposed on one side of a sea pond close to an open sea side, and comprises a mattress layer, and a first pressing platform and a main body which are disposed on the mattress layer in sequence from the open sea side to the sea pond.

The main part includes bottom plate additional structure, pile sheet structure and road structure, the bottom plate additional structure sets up in ground, the pile sheet structure includes the bottom plate, side wall and drilling bored concrete pile, the bottom plate is arranged in on the bottom plate additional structure, the bottom plate deviates from the one end of sea pond and is connected and form the L type with the side wall, the sea pond is close to the one end of open sea side, side wall and bottom plate form the structure groove jointly, road structure sets up at the structure inslot, the one end and the bottom plate of drilling bored concrete pile are connected, the other end passes the bottom plate additional structure in proper order, mattress pad layer backward downwardly extending extends to the supporting layer. The first pressing platform is connected with one side of the side wall, which deviates from the sea pond.

In the implementation process, the pile plate roadbed structure is constructed by relying on the existing old sea pond and the first suppression platform, the occupied area of the existing slope type seawall in order to effectively save the sea area is avoided, the overall structure is more optimized and compact than the ordinary coastal highway roadbed structure, the overall structure is simpler and more practical, and the construction is more convenient and faster. Through the setting of mattress bed course, can strengthen the intensity of pile board roadbed structure basis, effectual distribution load improves pile board roadbed structure's overall stability. One end of the main body close to the open sea side is provided with a first pressing platform, so that the impact and erosion of stormy waves and tides can be prevented, and the stability of the main body is greatly guaranteed. The foundation settlement can be effectively reduced by driving the cast-in-situ bored piles to the bearing layer, connecting the cast-in-situ bored piles with the bottom plate and laying the bottom plate auxiliary structure below the bottom plate, and the stability of the pile slab roadbed structure is effectively improved by matching the cast-in-situ bored piles with the first pressing platform; through setting up road structure in the structure inslot, effectively improve road structure's stability, the side wall is when providing a fender for road structure, can also prevent that sea water, the wave of open sea side from gushing into the highway within the scope simultaneously, compromise the flood control effect, further ensure road structure's stability.

In a possible embodiment, the bottom plate auxiliary structure comprises a fine aggregate concrete protective layer, a first waterproof layer and a plain concrete leveling layer which are sequentially stacked from top to bottom, the cast-in-situ bored pile sequentially penetrates through the plain concrete leveling layer, the first waterproof layer and the fine aggregate concrete protective layer and then is connected with the bottom plate, and the steel bar of the cast-in-situ bored pile is connected with the steel bar of the bottom plate.

In the above-mentioned realization process, the reinforcing bar through bored concrete pile makes bored concrete pile and reinforced concrete layer effective connection with the steel bar connection of bottom plate, prevents the bottom plate displacement, guarantees pile slab roadbed structure's stability, and the setting of while fine aggregate concrete protective layer, first waterproof layer and plain concrete screed-coat effectively guarantees the construction quality and the durability of bottom plate, improves pile slab roadbed structure's stability and life.

In a possible embodiment, the end of the side wall, which is far away from the ground, is higher than the road structure and the first pressing platform.

At above-mentioned realization in-process, through above-mentioned setting, effectively prevent that the wave from surging road structure within the scope, the flood control effect is good.

In a possible implementation scheme, a second waterproof layer is arranged on one side, away from the sea pond, of the side wall, and the first pressing platform is connected with the side wall through the second waterproof layer.

In the implementation process, the second waterproof layer is arranged, so that the side wall is not easily eroded by seawater in the flood control process, and the service life of the side wall is prolonged.

In one possible embodiment, the road structure comprises: the road bed is formed by soil and stone mixture filled in the structural grooves and the road surface structure paved on the upper surface of the road bed, the longitudinal projection of the bottom plate on the upper surface of the road bed is larger than or equal to the width of the road surface structure, and drainage grooves arranged along the extending direction of the pile plate road bed structure are arranged at two ends of the road surface structure.

In the above-mentioned realization process, the road bed that the earth stone mixture formed is filled to the structural filling of stake board, can the compactness of effective control road bed, improves the construction quality of road bed, greatly ensures the security and the travelling comfort of road driving, and the setting of water drainage tank also further reduces the erosion of surface water to the side wall simultaneously, improves the stability of side wall.

In a possible embodiment, the end of the sea pond facing the outside sea side has a second ballast platform, the end of the sea pond near the second ballast platform has a height higher than the height of the road structure, the height of the second ballast platform is lower than the height of the roadbed so that the roadbed can cover the second ballast platform, and the upper surface of the roadbed is provided with a vegetation layer in a position corresponding to the second ballast platform.

Optionally, the surface of the second pressing platform is provided with a third water-proof layer.

In the above-mentioned realization process, effectively inject the lateral displacement of major structure through second suppression platform and first suppression platform, can cover second suppression platform and prevent the infiltration cooperation with third prevention water layer simultaneously through the road bed, guarantee pile sheet roadbed structure's stability.

In a possible embodiment, the mattress pad layer comprises a bagged broken stone capping layer, a first woven geotextile layer, a broken stone pad layer and a second woven geotextile layer which are sequentially stacked from top to bottom, wherein the strength of the first woven geotextile layer is greater than that of the second woven geotextile layer.

In the implementation process, through the arrangement, the strength of the pile plate roadbed structure foundation is enhanced, the load is effectively distributed, and the overall stability of the pile plate roadbed structure is improved.

In a possible embodiment, the first suppression platform comprises a base body, a protective layer and a turning block, the base body comprises a slope section and a plane section which are sequentially arranged from the open sea side to the sea pond direction, the slope section is connected with the plane section, the protective layer is arranged on the surface of the base body, the turning block is arranged on the outer side of the protective layer corresponding to the plane section, and the turning block is located at one end, close to the side wall, of the plane section.

In the above-mentioned realization in-process, through the inoxidizing coating and turn round the concrete setting of king's piece, effectively guarantee first suppression platform and prevent the striking and the effect of erosion of stormy waves and trend, guarantee first suppression platform's stability, improve first suppression platform's life simultaneously.

In a second aspect, an embodiment of the present application provides a method for constructing a pile slab roadbed structure, including:

the construction corresponds the mattress layer of first suppression platform, throws and fills in first suppression platform, utilizes first suppression platform of construction earlier and current situation sea pond to cut off open sea side sea water, the follow-up pile board major structure of being convenient for.

Constructing a mattress layer corresponding to a main body structure on the ground between a first pressing platform and a sea pond, constructing a cast-in-situ bored pile, wherein one end of the cast-in-situ bored pile is driven into a bearing layer, the other end of the cast-in-situ bored pile is reserved with a length extending into a bottom plate attachment structure, constructing a bottom plate attachment structure on the mattress layer corresponding to the main body structure, erecting a mold on the bottom plate attachment structure to pour a bottom plate, connecting the pile top of the cast-in-situ bored pile with the bottom plate, and pouring a side wall at one end of the bottom plate, which is far away from the sea pond, so that the side wall, the bottom plate; and constructing a road structure in the structure groove.

In the above-mentioned realization process, construction convenience is simple and effectively guarantees pile sheet roadbed structure's stability, specifically through the mode of constructing the first suppression platform that is located the overseas side earlier, effectively blocks the sea water and gets into main part construction region, does construction cofferdam and pavement concurrently, structural stability and the convenience of construction when guaranteeing the construction main part.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural view of a pile slab roadbed structure according to the present application;

FIG. 2 is a schematic structural diagram of a road structure according to the present application;

fig. 3 is a schematic structural view of the drainage channel of the present application.

Icon: 20-sea ponds; 210-a second ballast platform; 220-third water proofing layer; 10-pile slab roadbed structure; 1203-fine stone concrete protection layer; 1205-a first waterproof layer; 1207-plain concrete screed; 121-a bottom plate; 123-side walls; 124-a second waterproof layer; 126-drilling a cast-in-place pile; 130-roadbed; 140-pavement structure; 141-a surface layer; 143-a base layer; 145-sub-base layer; 150-a drainage channel; 151-cover plate; 153-channel body; 161-pressing the bagged broken stone to the top layer; 163-first woven geotextile layer; 165-gravel cushion; 167-a second woven geotextile layer; 181-a substrate; 183-protective layer; 185-Zuiwang block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Examples

Referring to fig. 1, a pile-slab roadbed structure 10 is adapted to be installed on a side of a sea pond 20 near the open sea side, which is efficient and stable. The open sea side according to the present invention refers to the end facing the sea, and the sea pond 20 refers to an old sea pond (the sea pond 20 existing before the construction of the pile-plate roadbed structure 10) installed along the sea.

It should be noted that the sea pond 20 is arranged along the coastline, and has a second ballast platform 210 at an end facing the outside sea side to ensure the stability of the sea pond 20. That is, the pond 20 is an old pond with a second ballast platform 210.

Referring to fig. 1 and 2, the pile-slab roadbed structure 10 includes a mattress layer, and a first press platform and a main body which are arranged on the mattress layer in sequence from the open sea side to the sea pond 20.

Wherein, the mattress pad layer includes from top to bottom in proper order the stack in bags rubble top layer 161, first machine weave geotechnological cloth layer 163, rubble bed course 165 and the geotechnological cloth layer 167 of second machine weave, and the intensity that first machine weaves geotechnological cloth layer 163 is greater than the intensity of the geotechnological cloth layer 167 of second machine weave. Wherein, mattress pad layer requires the surface basically level and smooth, and the fill of rubble bed course 165 is closely knit, and rubble bed course 165 closely follows the geotechnological cloth of first mechanism and lays, and mattress pad layer edge part is with bagging-off rubble or short pile do interim support, prevents that the wave from breaking up.

The first woven geotextile layer 163 is made of, for example, a high-strength woven geotextile.

When the first woven geotextile layer 163 and the second woven geotextile layer 167 of the mattress layer are lapped, the high molecular polymer wide woven cloth is used, the lapping width is more than 50cm, and the high-strength nylon yarn or the polyester yarn is adopted for sewing treatment.

The main body comprises a bottom plate auxiliary structure, a pile plate structure and a road structure.

The bottom plate attachment structure is laid on the mattress layer, namely the mattress layer is laid on the first pressing platform and the bottom of the bottom plate attachment structure.

The floor auxiliary structure comprises a fine aggregate concrete protection layer 1203, a first waterproof layer 1205 and a plain concrete leveling layer 1207 which are sequentially stacked from top to bottom. Wherein the plain concrete leveling layer 1207 is formed by pouring C20 plain concrete. Through the setting of fine aggregate concrete protective layer 1203, first waterproof layer 1205 and plain concrete screed-coat 1207, effectively guarantee the construction quality and the durability of bottom plate 121, improve the stability and the life of pile slab roadbed structure 10.

The pile plate structure comprises a bottom plate 121, side walls 123 and cast-in-situ bored piles 126.

Wherein, bottom plate 121 supports with the one end of first suppression platform towards the sea end and leans on, restricts the transverse position of bottom plate 121 through second suppression platform 210 and first suppression platform, and then guarantees bottom plate 121's stability. The bottom plate 121 is made of, for example, reinforced concrete poured by C45 maritime work.

The side wall 123 is connected with one end of the bottom plate 121, which is far away from the sea pond 20, the side wall 123 and the bottom plate 121 form an L shape, and the side wall 123, the bottom plate 121 and one end of the sea pond 20, which is close to the open sea side, jointly enclose to form a structural groove, wherein the structural section of the structural groove is U-shaped. The side wall 123 is formed by pouring C45 marine reinforced concrete, for example, and has high strength and good connection effect with the bottom plate 121.

Optionally, the bottom plate 121 and the side wall 123 are cast in an integrally formed manner, so that connection stability is ensured, and the steel bars of the bottom plate 121 are connected with the steel bars of the side wall 123.

It should be noted that, the one end that side wall 123 kept away from ground is higher than road structure and first suppression platform, prevents effectively that the wave from rushing into within the road structure scope, and flood control effect is good. However, the height of the sidewall 123 is determined by the design tide level and the wave protection requirement in the reference period, and is not limited herein.

A second waterproof layer 124 is arranged on the side of the side wall 123 away from the sea bed 20, for example, the second waterproof layer 124 is tightly adhered to a side wall of the side wall 123 away from the sea bed 20 and is paved on a side wall of the side wall 123 away from the sea bed 20. Through the arrangement of the second waterproof layer 124, the side wall 123 is not easy to be wetted and eroded by seawater in the flood control process, so that the service life of the side wall 123 is prolonged.

It should be noted that the end of the second waterproof layer 124 close to the first pressing platform should be connected to the first waterproof layer 1205 to prevent water leakage at the joint of the two.

One end of the cast-in-situ bored pile 126 is connected with the bottom plate 121, and the other end of the cast-in-situ bored pile sequentially penetrates through the attachment structure of the bottom plate and the mattress pad layer to extend downwards to the supporting layer; specifically, the end of the cast-in-situ bored pile 126 departing from the bearing layer sequentially passes through the plain concrete leveling layer 1207, the first waterproof layer 1205 and the fine aggregate concrete protection layer 1203 and then is connected with the bottom plate 121, and the steel bar of the cast-in-situ bored pile 126 is connected with the steel bar of the bottom plate 121, so that the stability between the cast-in-situ bored pile 126 and the bottom plate 121 is effectively improved. The cast-in-situ bored pile 126 is cast by using C30 reinforced concrete, for example.

Optionally, a limiting groove (not shown) is formed in one side, close to the fine aggregate concrete protection layer 1203, of the bottom plate 121, and one end, away from the supporting layer, of the cast-in-situ bored pile 126 is embedded in the limiting groove, so that connection stability of the cast-in-situ bored pile and the supporting layer is effectively guaranteed, instability caused by displacement is prevented, meanwhile, the inner wall of the limiting groove can be formed by a steel plate and the like, and limitation is not performed here.

The number of bored concrete piles 126 is a plurality of, and wherein a plurality of bored concrete piles 126 are the rectangle array, specifically arrange in the bottom of bottom plate 121 for square array to guarantee the degree of consistency of bottom plate 121 atress, guarantee the stability of the structural channel that forms.

Referring to fig. 2, the road structure is disposed in the structural groove.

Specifically, the road structure includes a roadbed 130 and a pavement structure 140.

The roadbed 130 is formed by soil-rock mixture filled in the structural grooves, so that the compaction degree of the roadbed 130 can be effectively controlled, the construction quality of the roadbed 130 is improved, and the safety and the comfort of road driving are greatly guaranteed. Wherein, the earth-rock mixture should meet the requirements of relevant specifications.

Wherein the second ballast platform 210 has a height lower than the roadbed 130 so that the roadbed 130 can cover the second ballast platform 210, and the end of the sea pond 20 close to the second ballast platform 210 has a height higher than the height of the road structure. That is, the roadbed 130 can be limited by the side of the sea pond 20 close to the second ballast platform 210, so that the roadbed 130 is prevented from laterally shifting, and the second ballast platform 210 is effectively covered.

Optionally, in order to further improve stability, the surface of the second pressing platform 210 is provided with a third moisture-proof layer 220, which prevents moisture from permeating back into the main body to reduce stability of the main body. It should be noted that one end of the third waterproof layer 220 is connected to the first waterproof layer 1205 to prevent water leakage at the connection, and the other end is sequentially laid on the surface of the second pressing platform 210 and the side of the sea pond 20 facing the sea side and flush with the roadbed 130.

It should be noted that, in the present application, the first waterproof layer 1205, the second waterproof layer 124, and the third waterproof layer 220 may all adopt a synthetic resin polymer waterproof roll, and the waterproof effect is good.

A vegetation layer is disposed on the upper surface of the roadbed 130 corresponding to the second ballast platform 210. By the arrangement of the vegetation layer, the roadbed 130 is effectively fixed on one hand, and the ecological ornamental value is improved on the other hand.

The pavement structure 140 is laid on the upper surface of the roadbed 130.

The pavement structure 140 is disposed at a longitudinal projection of the bottom plate 121 on the upper surface of the roadbed 130, and the longitudinal projection of the bottom plate 121 on the upper surface of the roadbed 130 should be not less than the width of the pavement structure 140, so that the stability of the pavement structure 140 during actual use is ensured.

Accordingly, the width of the bottom plate 121 is determined by the width of the roadbed 130.

Referring to fig. 2 and 3, both ends of the pavement structure 140 are provided with drainage channels 150 arranged along the extending direction of the pile slab roadbed structure 10. The effective collection of surface water is ensured by the arrangement of the drainage channels 150, and the surface water is prevented from immersing the roadbed 130 and eroding the side walls 123.

The drain channel 150 may be composed of a cover plate 151 and a gutter body 153. Wherein, the cover plate 151 of the drainage channel can be prefabricated by C30 concrete, the ditch body 153 can be built by C25 concrete cast-in-place concrete, the cover plate 151 can be detachably arranged at the opening of the ditch body 153 and the cover plate 151 is provided with a comb-shaped water inlet channel, thereby effectively filtering some large-scale garbage.

The pavement structure 140 includes a surface layer 141, a base layer 143, and a sub-base layer 145 stacked in sequence from top to bottom.

The first ballast platform is connected to the side of the side wall 123 facing away from the pond 20.

The first ballast stage comprises a base 181, a guard 183 and a queen button 185.

The base 181 comprises a slope section and a plane section which are sequentially arranged from the open sea side to the sea pond 20, and the slope section is connected with the plane section.

The protective layer 183 is disposed on the surface of the substrate 181, wherein the protective layer 183 is formed by a large stone, and the weight of a single large stone is not less than 200 kg.

The queen turning block 185 is arranged on the outer side of the protective layer 183 corresponding to the plane section, and the queen turning block 185 is positioned at one end of the plane section close to the side wall 123. Wherein, the weight of the single Zuiwang block 185 is more than or equal to 5 t.

The construction method of the pile slab roadbed structure 10 comprises the following steps:

the mattress layer of the corresponding first suppression platform of construction, then throw and fill out first suppression platform, utilize first suppression platform of construction earlier and current situation pond 20 to cut off open sea side sea water, the follow-up construction main part of being convenient for.

Then constructing a mattress layer corresponding to the main structure on the ground between the first pressing platform and the sea pond 20, and constructing a cast-in-situ bored pile 126 between the first pressing platform and the sea pond 20, wherein the pile end of the cast-in-situ bored pile 126 is driven into the bearing layer, and the pile top of the cast-in-situ bored pile 126 is reserved with the length of extending into the structural bottom plate 121; sequentially constructing a plain concrete leveling layer 1207, a first waterproof layer 1205 and a fine aggregate concrete protective layer 1203 on the mattress layer corresponding to the main structure; the bottom plate 121 of the pile plate structure is vertically molded and poured on the fine aggregate concrete protective layer 1203, the pile top of the cast-in-situ pile 126 extends into the bottom plate 121, the steel bars of the cast-in-situ pile 126 and the steel bars of the bottom plate 121 are connected with each other, the side wall 123 is poured at one end of the bottom plate 121, which is far away from the sea pond 20, so that the side wall 123, the bottom plate 121 and the cast-in-situ pile 126 form the pile plate structure together, and the end, close to the seaside, of the sea pond 20, of the side wall 123, the bottom plate 121 and the.

And filling a roadbed 130 of soil and stone mixture, a construction drainage channel 150 and a paving pavement structure 140 in an area surrounded by the pile plate structure and the old sea pond 20.

Because the height of the end of the sea pond 20 close to the second ballast platform 210 is higher than the height of the road structure and the height of the second ballast platform 210 is lower than the height of the roadbed 130, after the second ballast platform 210 is actually filled, the existing ballast platform of the old sea pond can be excavated according to the actual requirement so as to meet the requirement, and then a third water prevention layer 220 is laid on the surface of the old sea pond, and then the main body is constructed.

In conclusion, the construction method of the pile plate roadbed structure provided by the application is controllable and simple in operation, the obtained pile plate roadbed structure is suitable for coastal areas, can depend on a sea pond and a second pressing platform, effectively saves land, and is safe and stable.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A pile plate roadbed structure is suitable for being arranged on one side of a sea pond close to the open sea side, and is characterized by comprising a mattress layer, a first pressing platform and a main body, wherein the first pressing platform and the main body are arranged on the mattress layer in sequence from the open sea side to the sea pond;

the main body comprises a bottom plate attachment structure, a pile plate structure and a road structure, the bottom plate attachment structure is arranged on the ground, the pile plate structure comprises a bottom plate, a side wall and a cast-in-situ pile, the bottom plate is arranged on the bottom plate attachment structure, one end, away from the sea pond, of the bottom plate is connected with the side wall and forms an L shape with the side wall, one end, close to the open sea side, of the sea pond, the side wall and the bottom plate jointly form a structural groove, the road structure is arranged in the structural groove, one end of the cast-in-situ pile is connected with the bottom plate, and the other end of the cast-in-situ pile sequentially penetrates through the bottom plate attachment structure and the mattress layer and then extends downwards to the force;

the first pressing platform is connected with one side, deviating from the sea pond, of the side wall.

2. The pile-slab roadbed structure of claim 1, wherein the bottom plate auxiliary structure comprises a fine aggregate concrete protective layer, a first waterproof layer and a plain concrete leveling layer which are sequentially stacked from top to bottom, the cast-in-situ bored pile sequentially penetrates through the plain concrete leveling layer, the first waterproof layer and the fine aggregate concrete protective layer and then is connected with the bottom plate, and a steel bar of the cast-in-situ bored pile is connected with a steel bar of the bottom plate.

3. The pile slab roadbed structure of claim 1, wherein an end of the side wall, which is far from the ground, is higher than the road structure and the first ballast platform.

4. The pile slab roadbed structure of claim 1, wherein a second waterproof layer is arranged on one side of the side wall, which is far away from the sea pond, and the first pressing platform is connected with the side wall through the second waterproof layer.

5. The pile slab roadbed structure according to any one of claims 1 to 4, wherein the road structure comprises: the road surface structure is characterized in that the road surface structure comprises a roadbed formed by soil and stone mixture filled in the structural grooves and a road surface structure laid on the upper surface of the roadbed, the longitudinal projection of the upper surface of the roadbed is larger than or equal to the width of the road surface structure, and drainage grooves arranged along the extending direction of the pile plate roadbed structure are arranged at two ends of the road surface structure.

6. A pile plate ballast construction according to claim 5, characterized in that the end of the sea basin facing the open sea side is provided with a second ballast platform, the end of the sea basin near the second ballast platform being at a higher level than the road construction, the second ballast platform being at a lower level than the ballast construction so that the ballast construction can cover the second ballast platform, the upper surface of the ballast construction being provided with a vegetation layer in a position corresponding to the second ballast platform.

7. The pile sheet subgrade structure of claim 6, wherein the surface of said second ballast platform is provided with a third water layer.

8. The pile slab roadbed structure of any one of claims 1 to 4, wherein the mattress layer comprises a bagged rubble topping layer, a first woven geotextile layer, a rubble cushion layer and a second woven geotextile layer, which are stacked in this order from top to bottom, and the strength of the first woven geotextile layer is greater than that of the second woven geotextile layer.

9. The pile slab roadbed structure of any one of claims 1 to 4, wherein the first ballast platform comprises a base body, a protective layer and a twisting block, the base body comprises a slope surface section and a plane surface section which are sequentially arranged from the open sea side to the sea pond, the slope surface section is connected with the plane surface section, the protective layer is arranged on the surface of the base body, the twisting block is arranged on the outer side of the protective layer corresponding to the plane surface section, and the twisting block is positioned at one end of the plane surface section close to the side wall.

10. A method of constructing a pile-slab roadbed structure according to claim 1,

constructing a mattress layer corresponding to the first pressing platform, and throwing and filling the first pressing platform;

constructing a mattress layer corresponding to a main body structure on the ground between the first pressing platform and the sea pond, constructing a cast-in-situ bored pile, wherein one end of the cast-in-situ bored pile is driven into the bearing layer, the other end of the cast-in-situ bored pile is reserved with the length of extending into the base plate attachment structure, constructing a base plate attachment structure on the mattress layer corresponding to the main body structure, erecting a mold on the base plate attachment structure to cast a base plate, connecting the pile top of the cast-in-situ bored pile with the base plate, and casting a side wall at one end of the base plate, which is far away from the sea pond, so that the side wall, the base plate and; and constructing a road structure in the structure groove.

Images