CN112962387A

CN112962387A - Town road seepage and drainage structure and construction method thereof

Info

Publication number: CN112962387A
Application number: CN202110153760.6A
Authority: CN
Inventors: 叶东鹏; 黄锴; 张晓烽
Original assignee: Guangdong Jian'an Municipal Engineering Co ltd
Current assignee: Guangdong Jian'an Municipal Engineering Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-06-15
Anticipated expiration: 2041-02-04
Also published as: CN112962387B

Abstract

The invention relates to the technical field of municipal roads, in particular to a municipal road seepage drainage structure and a construction method thereof, and the technical scheme is as follows: the municipal road seepage and drainage structure comprises a road, a drainage ditch and base bodies, wherein the drainage ditch is arranged on the road and is used for being connected with a municipal sewer pipeline, the base bodies are constructed on the inner walls of the two sides of the drainage ditch along the length direction of the drainage ditch, an access structure is connected between the bottoms of the base bodies on the two sides, a separation net is laid at the top of the access structure, a waterproof interlayer is laid at the bottom of the drainage ditch, gravel layers are filled above the base bodies on the two sides and the access structure and comprise an upper gravel layer and a lower gravel layer, the top of the upper gravel layer is leveled and aligned with the road surface of the road, a compression assembly is clamped between the upper gravel layer and the lower gravel layer and extends and abuts against the waterproof interlayer, and the upper gravel layer compresses the waterproof interlayer through the compression assembly.

Description

Town road seepage and drainage structure and construction method thereof

Technical Field

The invention relates to the technical field of municipal roads, in particular to a municipal road seepage drainage structure and a construction method thereof.

Background

The municipal engineering refers to municipal facility construction engineering, in China, municipal facilities refer to various buildings, structures, equipment and the like which are arranged in urban areas and town planning construction ranges and provide paid or uncompensated public products and services for residents based on government responsibility and obligation, and various public infrastructure constructions matched with city life belong to the municipal engineering category, such as common municipal roads needing pollution discharge, protection and greening.

At present, the non-motor vehicle lane of town road needs a long time to dry because its water permeability is not strong, and easy ponding when rainy day, and inconvenient pedestrian is current, causes the phenomenon that subsides and the road surface sunken phenomenon appear in this non-motor vehicle lane.

Aiming at the related technologies, the inventor researches and improves the existing structure and defects and provides a municipal road drainage structure and a construction method thereof.

Disclosure of Invention

In order to improve the municipal road seepage and drainage capacity, the application provides a municipal road seepage and drainage structure and a construction method thereof.

First aspect, the application provides a town road oozes row structure adopts following technical scheme:

a municipal road seepage and drainage structure comprises a road, a drainage ditch and a seat body, wherein the drainage ditch is arranged along the length direction of the road, the drainage ditch is used for being connected with a city sewer pipeline, the base bodies are constructed on the inner walls of two sides of the drainage ditch along the length direction of the drainage ditch, a butt strap structure is connected between the bottoms of the base bodies on two sides, the top of the butt strap structure is paved with a separation net, the bottom of the drainage ditch is paved with a waterproof separation layer, the seat bodies at two sides and the upper part of the butt strap structure are filled with a gravel layer, the gravel layer comprises an upper gravel layer and a lower gravel layer which are arranged at the upper layer and the lower layer, the top of the upper gravel layer is leveled and aligned with the pavement of the road, go up the metalling with it compresses tightly the subassembly to press from both sides between the metalling down, compress tightly the subassembly and extend and the butt is in waterproof interlayer, go up the metalling and compress tightly through compressing tightly the subassembly waterproof interlayer.

Through adopting above-mentioned technical scheme, the ponding of road can loop through the metalling and permeate to the escape canal down with the metalling, the city sewer pipe is finally catched into to the rethread escape canal, at this in-process, the waterproof interlayer at the bottom of the escape canal ditch can prevent effectively that the ponding that permeates to in the escape canal from permeating inside the road down, thereby effectively prevent ponding infiltration to the road bed, and then effectively prevent that the road bed from soaking for a long time and leading to the road bed bearing capacity to reduce in aquatic, and through the pressure of last metalling and compress tightly the subassembly, make waterproof interlayer stably lay at the bottom of the ditch in the escape canal, so that waterproof interlayer stably exerts the effect, consequently this town road oozes row structure and passes through the row that oozes of metalling, waterproof interlayer's protection and the metalling have improved town road's the drainage ability to waterproof interlayer's firm.

Preferably, both sides first overlap joint groove group has been seted up on the relative face between the pedestal respectively, with organizing first overlap joint groove is followed the length direction of pedestal is seted up, first overlap joint groove upwards runs through the pedestal top just seals downwards, the access structure includes polylith first access board and polylith second access board, two relative are set up at the both ends of first access board between the first overlap joint groove, the second overlap joint groove has been seted up at the top of first access board, the second access board is set up adjacent two between the second overlap joint groove of first access board, the top of first access board with the top level of second access board aligns, the spacer mesh lay in first access board with the top of second access board.

Through adopting above-mentioned technical scheme, can set up first attachment strap and second attachment strap between the both sides pedestal fast through first attachment strap groove and second attachment strap groove to make and set up stable in structure and accept and separate net and metalling.

Preferably, the compressing assembly comprises a limiting block, an L-shaped rod, a pressing plate and a pressing rod, the limiting block slides into the first overlapping groove, the L-shaped rod is connected to the upper end of the limiting block, one end of the L-shaped rod stretches into the upper gravel layer and is connected between the lower gravel layer and the pressing plate, the pressing rod is connected to the lower end of the limiting block, the bottom of the first overlapping groove is vertically communicated with the bottom of the base body through a through hole, and the pressing rod penetrates through the through hole and abuts against the waterproof interlayer.

Through adopting above-mentioned technical scheme, go up the metalling and compress tightly the clamp plate, make and compress tightly the whole pressurized of subassembly to the depression bar that makes to compress tightly the subassembly compresses tightly waterproof interlayer, realizes going up the metalling and to waterproof interlayer's firm effect, and the stopper can avoid the depression bar excessively to push down, thereby further plays the protective effect to waterproof interlayer.

Preferably, a plurality of grooves are formed in the upper end of the pressing plate, and the bottoms of the grooves are arc-shaped.

Through adopting above-mentioned technical scheme, increase the area of contact of clamp plate upper end and last rubble layer to make the clamp plate pressurized better.

Preferably, the first lapping groove is filled with a small gravel layer, and the top of the small gravel layer is leveled and aligned with the pavement of the road.

Through adopting above-mentioned technical scheme, after filling little rubble layer, little rubble layer can further compress tightly stopper and L type pole to make the ponding of road can also permeate to the rubble in situ through little rubble layer, further improve town road's the drainage ability that oozes.

Preferably, the upper end face of the limiting block is an inclined plane, and the upper end face of the limiting block is inclined to the middle of the drainage ditch.

Through adopting above-mentioned technical scheme, when ponding stretched through little rubble layer, the inclined plane of stopper upper end can be convenient for little intraformational ponding of rubble further stretch into in the rubble layer down to be convenient for seep and discharge of ponding.

Preferably, the top of lower rubble layer is leveled, go up the rubble layer with it is equipped with geotechnological cloth to press from both sides between the rubble layer down.

Through adopting above-mentioned technical scheme, geotechnological cloth can keep apart last metalling and lower metalling, prevents to go up the metalling and material between the metalling runs off each other, mixes each other down to the overall structure who keeps going up metalling and lower metalling guarantees the stable in structure of metalling and lower metalling.

In a second aspect, the application provides a construction method of a municipal road seepage drainage structure, which adopts the following technical scheme:

a construction method of a municipal road seepage and drainage structure comprises the following steps:

s1: forming a base body through a formwork and inner wall structures of long edges poured on two sides of the drainage ditch;

s2: laying a waterproof interlayer at the bottom of the drainage ditch;

s3: after the form is removed, erecting a lapping plate structure between the seat bodies, and laying the separation net on the lapping plate structure;

s4: and filling a lower gravel layer between the building structure and the two base bodies, and after the compressing assembly is placed, continuously filling the upper gravel layer and leveling the top of the upper gravel layer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the municipal road seepage and drainage structure improves the seepage and drainage capacity of the municipal road through seepage and drainage of the gravel layer, protection of the waterproof interlayer and the stabilizing effect of the gravel layer on the waterproof interlayer;

2. the first lapping plate and the second lapping plate can be quickly lapped between the seat bodies on the two sides through the first lapping groove and the second lapping groove, so that the lapping structure is stable to bear the separation net and the gravel layer;

3. go up rubble layer and compress tightly the clamp plate, make and compress tightly the whole pressurized of subassembly to the depression bar that the messenger compressed tightly the subassembly compresses tightly waterproof interlayer, realizes going up the firm effect of rubble layer to waterproof interlayer, and the stopper can avoid the depression bar to excessively push down, thereby further plays the protective effect to waterproof interlayer.

Drawings

FIG. 1 is a structural cross-sectional view of a town road drainage arrangement in an embodiment of the present application;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Description of reference numerals: 1. a road; 2. a drainage ditch; 3. a base body; 31. a first overlapping groove; 32. a through hole; 4. a strap structure; 41. a first strap; 411. a first lap joint block; 412. a second overlapping groove; 421. a second lap joint block; 5. separating the net; 6. a waterproof interlayer; 71. an upper crushed stone layer; 72. a lower crushed stone layer; 8. a compression assembly; 81. a limiting block; 82. an L-shaped rod; 83. pressing a plate; 831. a groove; 84. a pressure lever; 9. a small crushed stone layer; 10. and (4) geotextile.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses municipal administration road oozes row structure. Referring to fig. 1 and 2, the town road 1 infiltration drainage structure includes a road 1, a drainage ditch 2, and a base body 3.

Continuing to refer to fig. 1 and 2, wherein the stone drainage ditch is rectangular, the drainage ditch 2 is arranged along the length direction of the road 1, and the drainage ditch 2 is used for being connected with a city sewer pipeline, so that the accumulated water flowing into the drainage ditch 2 can be finally gathered into the city sewer pipeline system, and the accumulated water in the drainage ditch 2 is processed.

Base 3 constructs in the both sides inner wall in escape canal 2 along the length direction in escape canal 2, and both sides lock body is the cement piece for base 3 can form in the inner wall in escape canal 2 through formwork and pouring structure, and the interval about at the bottom of base 3's the bottom and the ditch in escape canal 2 guarantees the width that escape canal 2 supplied water to flow, the top of base 3 and road 1's road surface parallel and level, thereby guarantees the level and smooth on road 1's road surface. Be connected with between the bottom of both sides pedestal 3 and take the structure 4, the top of taking the structure 4 is laid and is separated the net 5, separates the net 5 and has paved on taking the structure 4 to avoid taking the structure 4 top material to fall into escape canal 2 through taking the gap of structure 4. In addition, the waterproof interlayer 6 is paved at the bottom of the drainage ditch 2, and in the embodiment, the waterproof interlayer 6 is a high polymer modified waterproof coiled material.

The gravel layer is filled to both sides pedestal 3 and the top of attachment strap structure 4, and the gravel layer is by the broken stone head group of polylith, and the gravel layer includes upper and lower two-layer last gravel layer 71 and lower gravel layer 72, and the rubble particle diameter of going up gravel layer 71 and lower gravel layer 72 is all not greater than the two-thirds of this layer rubble thickness, goes up the top of gravel layer 71 and makes level and aligns with the road surface of road 1.

The compressing assembly 8 is clamped between the upper gravel layer 71 and the lower gravel layer 72, the compressing assembly 8 extends and abuts against the top of the waterproof interlayer 6, and the upper gravel layer 71 compresses the waterproof interlayer 6 through the compressing assembly 8. At this time, the accumulated water of the road 1 can permeate into the drainage ditch 2 through the upper crushed stone layer 71 and the lower crushed stone layer 72 in this order, then the accumulated water continuously passes through the separation net 5 and the butt strap structure 4 and finally is merged into the urban sewer pipeline through the drainage ditch 2, in the process, the waterproof interlayer 6 at the bottom of the drainage ditch 2 can effectively prevent the accumulated water permeating into the drainage ditch 2 from seeping into the road 1, thereby effectively preventing the accumulated water from seeping into the roadbed of the road 1, thereby effectively preventing the bearing capacity of the roadbed 1 from being reduced due to the roadbed being soaked in water for a long time, and through the pressure of the upper gravel layer 71 and the compression assembly 8, so that the waterproof interlayer 6 is stably paved at the bottom of the drainage ditch 2, the waterproof interlayer 6 can stably play a role, consequently this town road 1 oozes row structure oozes row, waterproof interlayer 6's protection and the firm effect of gravel layer to waterproof interlayer 6 through the gravel layer have improved town road 1's the row ability of oozing.

First overlap joint groove 31 group has been seted up respectively on the relative face between the both sides pedestal 3, and first overlap joint groove 31 is the rectangular channel, and the length direction and the vertical direction of first overlap joint groove 31 are parallel, and the length of first overlap joint groove 31 is less than the height of pedestal 3, and the even interval of length direction along pedestal 3 is seted up in the first overlap joint groove 31 of the same group, and first overlap joint groove 31 upwards runs through pedestal 3 top and seals downwards.

The strap structure 4 includes a plurality of first straps 41 and a plurality of second straps (not shown in the drawings), the first straps 41 and the second straps are each in a rectangular plate shape, and both ends of the first straps 41 are disposed between two opposite first strap grooves 31. Specifically, the two ends of the first strap 41 in the length direction are fixedly connected with first strap blocks 411, and the first strap blocks 411 are rectangular blocks corresponding to the first strap grooves 31, so that the first strap blocks 411 can be stably embedded into the first strap grooves 31, and the first strap is stably lapped between two opposite first strap grooves 31. Further, a plurality of second overlapping grooves 412 are formed in the top of the first overlapping plate 41, the second overlapping grooves 412 are uniformly arranged along the length direction of the first overlapping plate 41 at intervals, the second overlapping grooves 412 are rectangular grooves, and the second overlapping grooves 412 penetrate through the side walls of the two sides of the first overlapping plate 41 along the width direction of the first overlapping plate 41. The second strap is set up between the second overlap joint groove 412 of two adjacent first straps 41, and is concrete, and the both ends fixedly connected with second overlap joint piece 421 of second strap, the shape that second overlap joint piece 421 corresponds second overlap joint groove 412 are rectangular block shape for second overlap joint piece 421 can stably imbed in second overlap joint groove 412, thereby make the stable overlap joint of second strap between two adjacent first straps 41. The top of first access board 41 and the top level of second access board align, separate the top that net 5 laid first access board 41 and second access board, can set up first access board 41 and second access board between both sides pedestal 3 fast through first overlap joint groove 31 and second overlap joint groove 412 to make and set up stable in structure and accept and separate net 5 and rubble layer.

The pressing assembly 8 includes a limiting block 81, an L-shaped rod 82, a pressing plate 83 and a pressing rod 84, wherein the limiting block 81 slides into the first overlapping groove 31, and the limiting block 81 after sliding into abuts against the top of the first overlapping block 411. The L-shaped rod 82 is fixedly connected to the upper end of the limiting block 81, and one end of the L-shaped rod 82 extends into the space between the upper crushed stone layer 71 and the lower crushed stone layer 72 and is connected with the pressing plate 83. Specifically, L type pole 82 includes interconnect's vertical pole portion and horizontal pole portion, and the length direction and the vertical direction of vertical pole portion are parallel, and the length direction and the horizontal direction of horizontal pole portion are parallel, and L type pole 82 passes through the lower extreme and stopper 81 fixed connection of vertical pole portion, and L type pole 82 keeps away from the one end and the clamp plate 83 fixed connection of vertical pole portion through horizontal pole portion, and clamp plate 83 is connected and is the level setting behind L type pole 82's horizontal pole portion. In addition, depression bar 84 fixed connection is at the lower extreme of stopper 81, the length direction of depression bar 84 is parallel with vertical direction, first overlap joint piece 411, vertical intercommunication has through-hole 32 between the bottom of first overlap joint groove 31 and the bottom of pedestal 3, the aperture of through-hole 32 corresponds the size setting of depression bar 84, make depression bar 84 pass through-hole 32 and butt in waterproof interlayer 6, at this moment, the rubble layer compresses tightly clamp plate 83, make and compress tightly subassembly 8 whole pressurized, thereby make and compress tightly subassembly 8's depression bar 84 and compress tightly waterproof interlayer 6, realize going up the firm effect of rubble layer 71 to waterproof interlayer 6, and stopper 81 can avoid depression bar 84 excessively to push down, thereby further play the protecting effect to waterproof interlayer 6.

Furthermore, a plurality of grooves 831 are formed in the upper end of the pressing plate 83, the bottoms of the grooves 831 are arc-shaped, and the contact area between the upper end of the pressing plate 83 and the upper gravel layer 71 is increased due to the arrangement of the grooves 831 in the upper end of the pressing plate 83, so that the pressing plate 83 is pressed better. First bridging groove 31 intussuseption is filled with little rubble layer 9, and the rubble particle diameter of little rubble layer 9 is less than the rubble particle diameter of rubble layer, and the top of little rubble layer 9 is made level and is aligned with road 1's road surface to guarantee that road 1's road surface is level and smooth. After filling little rubble layer 9, little rubble layer 9 can further compress tightly stopper 81 and L type pole 82 to make road 1's ponding also can permeate to the rubble in situ through little rubble layer 9, further improve town road 1's the drainage ability. In addition, the upper end terminal surface of stopper 81 is the inclined plane, and the middle part in stopper 81's upper end terminal surface slant escape canal 2, when ponding stretches through little metalling 9, the inclined plane of stopper 81 upper end can be convenient for ponding in little metalling 9 further stretch into lower metalling 72 in to be convenient for seep and discharge of ponding.

The top of lower rubble layer 72 is leveled, goes up and is equipped with geotechnological cloth 10 between rubble layer 71 and the lower rubble layer 72 to make geotechnological cloth 10 fill in on the top of rubble layer 72 down, geotechnological cloth 10 can keep apart last rubble layer 71 and lower rubble layer 72, prevents that the material between last rubble layer 71 and the lower rubble layer 72 from running off each other, mixing each other, thereby keeps the overall structure of rubble layer 71 and lower rubble layer 72, guarantees the stable in structure of last rubble layer 71 and lower rubble layer 72.

The embodiment of the application also discloses a construction method of the municipal road seepage and drainage structure, which comprises the following steps:

s1: the base body 3 is formed by a formwork and a structure poured on the inner walls of the long edges at the two sides of the drainage ditch 2;

s2: a waterproof interlayer 6 is laid at the bottom of the drainage ditch 2;

s3: after the mould is removed, erecting a butt strap structure 4 between the seat bodies 3, firstly, overlapping first butt straps 41 between the seat bodies 3, then overlapping second butt straps between the first butt straps 41, and laying a separation net 5 on the butt strap structure 4;

s4: the lower gravel layer 72 is filled between the building structure and the two base bodies 3, the particle size of the filled gravel is not more than two thirds of the thickness of the lower gravel layer 72, the top of the lower gravel layer 72 is leveled, the geotextile 10 is laid on the top of the lower gravel layer 72 after leveling, then the compressing component 8 is placed, the pressing rod 84 penetrates through the through hole 32 and abuts against the top of the waterproof interlayer 6, the pressing plate 83 presses the geotextile 10, then the upper gravel layer 71 is continuously filled, the upper gravel layer 71 is pressed on the lower gravel layer 72 and the pressing plate 83, the particle size of the gravel of the upper gravel layer 71 is not more than two thirds of the thickness of the upper gravel layer 71, the top of the upper gravel layer 71 is leveled, and finally the first lap groove 31 is filled with the small gravel layer 9 and leveled.

The implementation principle of the municipal road seepage drainage structure and the construction method thereof in the embodiment of the application is as follows: the ponding of road 1 can loop through rubble layer 71 and rubble layer 72 infiltration to escape canal 2 down, the city sewer pipe is finally merged into to rethread escape canal 2, in this process, the waterproof interlayer 6 at the bottom of 2 ditches in escape canal can effectively prevent to permeate to the ponding in escape canal 2 and permeate to road 1 inside down, thereby effectively prevent ponding infiltration to 1 road bed of road, and then effectively prevent 1 road bed of road from soaking for a long time in aquatic and lead to the road bed bearing capacity to reduce, and pressure and the pressure through last rubble layer 71 compress tightly subassembly 8, make waterproof interlayer 6 stably lay at the bottom of the ditch in escape canal 2, so that waterproof interlayer 6 stably exerts effect, consequently this town road oozes row structure and passes through the row that oozes of rubble layer, waterproof interlayer 6's protection and rubble layer have improved town road 1's row of oozing ability to waterproof interlayer 6's firm effect.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a municipal administration road oozes row structure which characterized in that: the road comprises a road (1), a drainage ditch (2) and a base body (3), wherein the drainage ditch (2) is arranged along the length direction of the road (1), the drainage ditch (2) is used for being connected with a city sewer pipeline, the base body (3) is constructed on the inner walls of the two sides of the drainage ditch (2) along the length direction of the drainage ditch (2), a lapping plate structure (4) is connected between the bottoms of the base body (3), a separation net (5) is paved at the top of the lapping plate structure (4), a waterproof separation layer (6) is paved at the bottom of the drainage ditch (2), the base body (3) and the upper part of the lapping plate structure (4) are filled with a gravel layer, the gravel layer comprises an upper gravel layer (71) and a lower gravel layer (72), the top of the upper gravel layer (71) is leveled and is aligned with the road surface of the road (1), and a compression assembly (8) is clamped between the upper gravel layer (71) and the lower gravel layer (72), the pressing component (8) extends and abuts against the waterproof interlayer (6), and the upper gravel layer (71) presses the waterproof interlayer (6) through the pressing component (8).

2. The municipal road drainage structure of claim 1, wherein: the opposite surfaces between the seat bodies (3) at the two sides are respectively provided with a first overlapping groove (31) group, the first overlapping grooves (31) of the same group are arranged along the length direction of the seat bodies (3), the first lapping groove (31) upwards penetrates through the top of the seat body (3) and is closed downwards, the butt strap structure (4) comprises a plurality of first butt straps (41) and a plurality of second butt straps, two ends of the first lapping plate (41) are lapped between the two opposite first lapping grooves (31), the top of the first butt strap (41) is provided with a second butt strap groove (412), the second butt strap is arranged between the second butt strap grooves (412) of two adjacent first butt straps (41), the top of first access board (41) with the top horizontal alignment of second access board, separate net (5) lay in first access board (41) with the top of second access board.

3. The municipal road drainage structure of claim 2, wherein: compress tightly subassembly (8) and include stopper (81), L type pole (82), clamp plate (83) and depression bar (84), stopper (81) slide in extremely first overlap joint groove (31), L type pole (82) are connected the upper end of stopper (81), the one end of L type pole (82) is stretched into go up metalling (71) with connect down between metalling (72) clamp plate (83), depression bar (84) are connected the lower extreme of stopper (81), the one end of first butt strap (41) the bottom of first overlap joint groove (31) with vertical intercommunication has through-hole (32) between the bottom of pedestal (3), depression bar (84) pass through-hole (32) and butt in waterproof interlayer (6).

4. The municipal road drainage structure of claim 3, wherein: a plurality of grooves (831) are formed in the upper end of the pressing plate (83), and the bottoms of the grooves (831) are arc-shaped.

5. The municipal road drainage structure of claim 4, wherein: the first lapping groove (31) is filled with a small gravel layer (9), and the top of the small gravel layer (9) is leveled and aligned with the pavement of the road (1).

6. The municipal road drainage structure of claim 5, wherein: the upper end face of the limiting block (81) is an inclined plane, and the upper end face of the limiting block (81) is inclined to the middle of the drainage ditch (2).

7. The municipal road drainage structure of claim 6, wherein: the top of the lower gravel layer (72) is leveled, and the geotechnical cloth (10) is clamped between the upper gravel layer (71) and the lower gravel layer (72).

8. A stable construction method of a municipal road drainage structure, which is used for the municipal road drainage structure of any one of claims 1 to 7, and is characterized by comprising the following steps:

s1: a base body (3) is formed by a formwork and inner wall structures poured on the long sides of the drainage ditch (2);

s2: a waterproof interlayer (6) is laid at the bottom of the drainage ditch (2);

s3: after the mould is removed, erecting a lapping plate structure (4) between the base bodies (3), and laying the separation net (5) on the lapping plate structure (4);

s4: and a lower gravel layer (72) is filled between the building structure and the two base bodies (3), and after the compaction assembly (8) is placed, the upper gravel layer (71) is continuously filled and the top of the upper gravel layer (71) is leveled.