阅读说明：本技术 一种预制装配式路面结构及其施工方法 (Prefabricated assembly type pavement structure and construction method thereof ) 是由 权正则 李武洁睿 于 2020-06-17 设计创作，主要内容包括：一种预制装配式路面结构,包括若干平板、立柱,其特征在于：所述平板(1)本体为正八边形混凝土预制块体,所述立柱(2)为正四棱台,正八边形平板块体与正四棱台的上底面相互匹配的半圆形缺口,正八边形平板块体的正四棱台的侧面角度适配,所述路面花样图案设计为四块正八边形平板块体相互成衔接成井字形连接,正四棱台插入井字形的中间,使正四棱台镶嵌在四块正八边形平板块体形中间组成一个路面装配单元。本发明的预制装配式路面结构及其施工方法,具有平板和立柱的结构简单,工厂标准化预制方便,采用大尺寸的预制板提高预制及安装效率；通过支撑柱向下部传力,并借助板间推力实现板拱受力形式,预制装配式路面结构铺设安装效率高的优点。(The utility model provides a prefabricated assembled pavement structure, includes a plurality of flats, stand, its characterized in that: dull and stereotyped (1) body is the prefabricated block of regular octagon concrete, stand (2) are regular four arriss platforms, the semi-circular breach that regular octagon flat plate body and regular four arriss platforms's last bottom surface match each other, the side angle adaptation of regular four arriss platforms of regular octagon flat plate body, road surface style pattern design becomes to link up into the groined type connection for four regular octagon flat plate body each other, and regular four arris platforms inserts the centre of groined type, makes regular four arris platforms inlay and constitute a road surface assembly unit in the middle of four regular octagon flat plate bodies. The prefabricated assembly type pavement structure and the construction method thereof have the advantages that the structures of the flat plate and the upright post are simple, the factory standardization and prefabrication are convenient, and the prefabrication and installation efficiency is improved by adopting the large-size prefabricated plate; pass power to the lower part through the support column to with the help of the thrust of interplate realization board arch atress form, the advantage that prefabricated assembled pavement structure lays the installation effectiveness height.)

1. The utility model provides a prefabricated assembled pavement structure, includes a plurality of flats, stand, its characterized in that:

the main body of the flat plate (1) is a regular octagonal concrete prefabricated block or a stone flat plate block, and is used as a pavement main body, and the size of the block is determined according to pavement pattern design and the load borne by the upper part of the flat plate;

the upright posts (2) are regular quadrangular frustum pyramid concrete prefabricated blocks, and the upper bottom surfaces of the regular quadrangular frustum pyramid concrete prefabricated blocks are small, and the lower bottom surfaces of the regular quadrangular frustum pyramid concrete prefabricated blocks are large;

wherein: the interface between one end of the upper surface of the regular octagonal flat plate block and one end of the upper bottom surface of the regular quadrangular frustum pyramid block is respectively provided with a semicircular notch which is matched with each other; when one end of the upper surface of the regular octagonal flat plate block body and one end of the upper bottom surface of the regular quadrangular frustum pyramid block body are paved, connected and assembled to form a road surface, the two semicircular gaps form a drainage hole (5) in the middle of the joint surface to drain water on the road surface; the thickness direction of the regular octagonal flat plate block body is set into an oblique side face, so that the oblique side face of the regular octagonal flat plate block body is matched with the side face angle of the regular quadrangular frustum block body to form a regular quadrangular frustum capable of supporting the regular octagonal precast concrete block body; the design of road surface style pattern is that four regular octagon flat plate blocks become each other and link up into the groined type and connect, and regular quadrangular platform inserts the centre of groined type, makes regular quadrangular platform inlay and form a road surface assembly unit in the middle of four regular octagon flat plate block bodily forms, and the upper surface of road surface assembly unit is level and smooth, and only the lower surface of regular quadrangular platform of road surface assembly unit is on the road bed screed-coat bottom surface on assembly formula road surface, and a plurality of road surface assembly units mutually support the prefabricated assembled road surface structure of synthetic road surface style pattern.

2. The prefabricated pavement structure according to claim 1, wherein the slab (1) in the pavement assembly unit can be replaced by a smaller slab with the same shape, the side length of the regular octagonal slab in the assembly unit is an integral multiple of the side length of the small slab, and the regular quadrangular frustum corresponding to the regular octagonal slab can be divided into half regular quadrangular frustum along the diagonal line or a quarter regular quadrangular frustum along the diagonal line so as to meet pavement requirements of the intersection with the road edge, the road corner or the intersection of the longitudinal and transverse road surfaces.

3. A prefabricated pavement structure according to claim 1, wherein said block dimensions include block thickness and block surface size.

4. A prefabricated pavement structure according to claim 1, wherein said regular octagonal concrete precast blocks or stone slab blocks are sized to be precast according to the designed width of the pavement as an integral multiple of the length and width, so as to ensure that the width-based modular arrangement is still achieved when the pavement meshing is restricted.

5. A prefabricated pavement structure according to claim 1, wherein said slab is capable of adopting a slab-bottom arch configuration for improved stress, weight reduction and material savings.

6. A construction method of a prefabricated pavement structure according to claim 1, comprising the steps of:

a. prefabricating a plurality of flat plates (1) and upright columns (2): prefabricating a flat plate, wherein the flat plate body is a regular octagonal concrete prefabricated block or a stone flat plate block; the upright posts are regular quadrangular frustum pyramid concrete prefabricated blocks;

b. according to the direction of a pavement to be paved, a concrete bottom surface leveling layer is designed and divided into a plurality of pavement assembly unit grids according to pavement pattern patterns;

c. pavement assembly cell grid arrangement

Arranging the pavement assembling unit grids: connecting four regular octagonal flat plate blocks into a groined connection, inserting a regular quadrangular frustum into the middle of the groined shape, embedding the regular quadrangular frustum in the middle of the body shape of the four regular octagonal flat plates to form a pavement assembly unit, wherein the regular octagonal flat plate blocks in each pavement assembly unit are as high as the regular quadrangular frustum, the upper surfaces of the regular octagonal flat plate blocks are flush, the inclined side surfaces of the regular octagonal flat plate blocks are matched with the side surfaces of the regular quadrangular frustum in angle, but the angle difference exists, so that auxiliary arrangement and water seepage are facilitated;

d. and assembling the pavement assembly unit grids to complete the construction of the prefabricated pavement structure.

7. A construction method of a prefabricated pavement structure according to claim 6, wherein the thickness of the slab and the pillars is determined by the calculation of the upper load according to the strength of the concrete or stone used in combination with the material of the sidewalk, the non-motor vehicle lane or the motor vehicle lane, and the plane size of the slab (1).

Technical Field

The invention relates to the technical field of pavement construction in municipal engineering, in particular to a prefabricated assembly type pavement structure and a construction method thereof, which can realize that rainwater on a pavement is quickly discharged below the pavement and guided into a sewer.

Background

As the earth's air temperature rises, extreme weather increases, with stormy weather increasing, often with short periods of stormy rain constantly refreshing. Although water systems are modified in many countries and cities in order to solve the urban flood control problem caused by the extreme weather, the problem caused by the average rainfall cannot be fundamentally solved. To solve this problem, many countries propose the concept of sponge cities. The concept includes front end rainwater drainage and guiding, and rear end drainage and water storage. In contrast, the concept of building large drainage channels and underground water storage facilities in the back end is relatively clear, and the design and implementation are comprehensively carried out on the basis of professional design. However, in the aspect of rainwater collection and guiding at the front end, due to the fact that the influence factors of the rain road surface are more, the specificity of facing traffic or personnel is more, and comprehensive design is needed.

On the other hand, in order to beautify and clean cities, if the existing road surfaces are paved by pure concrete, although the road surfaces are economical and quick, rainwater cannot be dispersed but is concentrated on the road surfaces or roadside drainage pipelines. With conventional precast slab or brick paving, it is often necessary to level the underlying surface with a stiffening screed in order to overcome the deformation caused by the top load. The problem that brings not only is similar with whole concrete of mating formation, and it is unfavorable for dredging to the underground pipeline to concentrate after the rainwater is collected promptly. Receive simultaneously to make level under board or the brick and receive the soil body settlement influence of its below, can appear following phenomenon:

(1) accumulated water after uneven settlement across the surface is the same even in light rain;

(2) the bricks fall off and water is accumulated at the separation part;

(3) the board or brick and the cushion layer fall off and are damaged;

(4) even if the water permeable bricks are adopted for drainage, sometimes workers directly use concrete or cement mortar as a leveling layer under the bricks during actual laying, and the water permeable effect is achieved after water loss;

(5) sometimes, even if pure fine sand is used as a permeable cushion layer, the sand grains lose the permeable effect due to the fact that rainwater with a surface ash layer enters brick gaps or a sand layer below the bricks after the permeable cushion layer is used for a long time, and slurry is formed and solidified;

(6) the movable permeable bricks can cause slippage to influence flatness sometimes due to upper load, and potential safety hazards are brought to pedestrians.

Although the prior assembly type double-layer pavement slab has the defects that the upper space and the lower space of the pavement slab are limited by small blocks, the pavement slab can only be supported by a thick upright post to form enough space at the lower part to be beneficial to flow guiding, so that the upright post is changed into a support post with a bottom plate, more processes are added for processing prefabricated parts, and the inconvenience of installation is also increased. Meanwhile, due to the small block prefabrication, the plane arrangement can only be simplified to adapt to the change of the road edge.

Chinese patent CN208685390U discloses a pavement structure for sponge cities in 2019, 4 and 2, which comprises a soil base layer, a subbase layer, a bearing layer, a transition layer and a permeable surface layer from bottom to top in sequence; the subbase mainly comprises rubble and fine sand, the bearing layer forms for supporting the brick concatenation, set up the hole of permeating water of the excessive layer of intercommunication and subbase on the support brick, it is provided with permeable material in the hole to permeate water, the thickness sand that the gap is connected between the support brick for being used for filling on the excessive layer constitutes, the superficial layer that permeates water is laid for the concrete that permeates water and is formed. Although the technical scheme can generate the effect of a sponge city pavement structure, the bearing layer is formed by splicing the supporting bricks, and the negative condition of hectare disintegration can occur when the load is higher than the critical point.

The known sponge urban pavement structures therefore present the inconveniences and problems described above.

Disclosure of Invention

The invention aims to provide a sponge city prefabricated assembly type pavement structure adopting large-size prefabricated slabs.

The invention also aims to provide a construction method for prefabricating the fabricated pavement structure in the sponge city by adopting the large-size prefabricated slab.

In order to achieve the purpose, the technical solution of the invention is as follows:

the utility model provides a prefabricated assembled pavement structure, includes a plurality of flats, stand, its characterized in that:

the slab body is a regular octagonal concrete prefabricated block or a stone slab block and serves as a pavement paving main body, and the size of the block is determined according to the pavement pattern design and the load borne by the upper part of the slab;

the prefabricated concrete block is a regular quadrangular frustum pyramid concrete prefabricated block body, and the upper bottom surface and the lower bottom surface of the regular quadrangular frustum pyramid concrete prefabricated block body are small and large;

wherein: the interface of one end of the upper surface of the regular octagonal flat plate block and one end of the upper bottom surface of the regular quadrangular frustum respectively is provided with semicircular notches which are matched with each other; when one end of the upper surface of the regular octagonal flat plate block body and one end of the upper bottom surface of the regular quadrangular frustum pyramid are paved, connected and assembled to form a road surface, the two semicircular gaps form a drainage hole in the middle of the joint surface to drain water on the road surface; the thickness direction of the regular octagonal flat plate block body is set into an oblique side face, so that the oblique side face of the regular octagonal flat plate block body is matched with the side face angle of the regular quadrangular frustum to form the regular quadrangular frustum capable of supporting the regular octagonal precast concrete block body; the design of road surface pattern is that four regular octagonal flat plate blocks become each other and link up into the groined type and connect, and regular quadrangular platform inserts the centre of groined type, makes regular quadrangular platform inlay and form a road surface assembly unit in the middle of four regular octagonal flat plate block bodily forms, and the upper surface of road surface assembly unit is level and smooth, and only the lower surface of regular quadrangular platform of the lower surface of road surface assembly unit is on the concrete bottom surface on assembled road surface, and a plurality of road surface assembly units mutually support the prefabricated assembled road surface structure of synthetic road surface pattern.

The prefabricated pavement structure of the present invention can be further implemented by the following technical means.

The slab can be replaced by a smaller small slab with the same shape in the pavement assembly unit, the side length of the regular octagonal slab in the assembly unit is integral multiple of that of the small slab, and the regular octagonal slab and the corresponding regular quadrangular frustum can be divided into half regular quadrangular frustums along opposite angles or divided into quarter regular quadrangular frustums along opposite angles so as to meet pavement paving requirements of intersections of road edges and road corners or intersections of longitudinal and transverse planes.

The prefabricated pavement structure can realize 99% of single size of flat plates and upright posts except for roadsides and corners, so that the standardized processing of only two members is basically realized by 99%.

The prefabricated pavement structure comprises a plurality of prefabricated pavement structures, wherein the prefabricated pavement structures are arranged on the prefabricated pavement structures.

According to the prefabricated assembly type pavement structure, the regular octagonal concrete prefabricated blocks or the stone slab blocks can be prefabricated according to the design width of a pavement and the requirement of integral multiple of the length and the width, so that the pavement gridding division is limited, and the arrangement with the width as a modulus can be realized.

According to the prefabricated pavement structure, the bottom surface of the flat plate can be of an arched structure, so that stress is improved, weight is reduced, and materials are saved.

A construction method of a prefabricated pavement structure according to claim 1, comprising the steps of:

a. prefabricating a plurality of flat plates and upright columns: prefabricating a flat plate, wherein the flat plate body is a regular octagonal concrete prefabricated block or a stone flat plate block; the upright posts are regular quadrangular frustum pyramid concrete prefabricated blocks;

b. leveling the bottom surface of the concrete according to the direction of a pavement to be paved, and designing and dividing the pavement into a plurality of pavement assembly unit grids according to a pavement pattern;

c. pavement assembly cell grid arrangement

Arranging the pavement assembling unit grids: connecting four regular octagonal flat plate blocks into a groined connection, inserting a regular quadrangular frustum into the middle of the groined shape, embedding the regular quadrangular frustum in the middle of the body shape of the four regular octagonal flat plates to form a pavement assembly unit, wherein the regular octagonal flat plate blocks in each pavement assembly unit are as high as the regular quadrangular frustum, the upper surfaces of the regular octagonal flat plate blocks are flush, the inclined side surfaces of the regular octagonal flat plate blocks are matched with the side surfaces of the regular quadrangular frustum in angle, but the angle difference exists, so that auxiliary arrangement and water seepage are facilitated;

d. and assembling the pavement assembly unit grids to complete the construction of the prefabricated pavement structure.

The construction method of the prefabricated pavement structure can be further realized by adopting the following technical measures.

The method, wherein the thickness of the slab is determined by upper load calculation according to the material strength of concrete or stone used in combination with whether it is a sidewalk or a non-motor vehicle lane or a motor vehicle lane, and the plane size of the slab (1). .

After the technical scheme is adopted, the prefabricated assembly type pavement structure and the construction method thereof have the following advantages:

1. the flat plate and the upright post have simple structures and are convenient to prefabricate in factories;

2. the engineering quality is safe and reliable, and the prefabrication and installation efficiency is improved by adopting a large-size prefabricated plate; force is transferred downwards through the supporting columns, and the plate arch stress form is realized by the aid of the thrust between plates;

3. the prefabricated assembly type pavement structure is high in laying and mounting efficiency, and the laying engineering cost is reduced.

Drawings

FIG. 1 is a schematic view of a pavement slab and a column laying plane structure according to an embodiment of the invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1, with the post having a shallow taper;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1, with the column being of a large taper;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 5 is a schematic diagram illustrating the combined paving of the large and small boards when the road width is limited according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of the laying of the large and small slabs according to the embodiment of the present invention.

In the figure: the concrete paving structure comprises a flat plate 1, a column 2, a column 31/2, a column 41/4, drain holes 5, a large water guide space below the flat plate 6, a small water guide space below the flat plate 7, a concrete leveling layer 8, a large paving plate 9 and a large paving plate 10 with patterns, wherein h represents the matching paving height of the flat plate and the column.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.