CN108532406A - Can rapid construction high-bearing capacity pervious surface and laying method - Google Patents

Abstract

It is a kind of can rapid construction high-bearing capacity pervious surface and laying method, first：It is the special kerbstone for the broken line step being made of left-half and right half part and the water-permeable brick with round permeable hole to be prefabricated in the factory and be evenly equipped with multiple permeable holes and the big plate of the interior reinforced concrete permeable equipped with reinforcing bar, cross section structure, then it is laid with aquifer from below to up, rubble stabilized zone, special kerbstone is being buried close to trees side again, the right half part bottom end of special kerbstone is deep into aquifer；It is laid with the big plate of reinforced concrete permeable above special kerbstone and rubble stabilized zone, water-permeable brick composition pavement face layer is re-layed after sand-free coarse porous concrete haydite concrete is filled in the permeable hole of the big plate of reinforced concrete permeable.Effective fast permeable speed can be achieved in the present invention, and under the premise of not reducing the bearing capacity of pervious surface, improves the level of factorial praluction, avoids the execute-in-places such as cast-in-place concrete and scene drilling, improves construction efficiency, reduction production cost.

Description

High bearing capacity permeable ground capable of rapid construction and laying method

Technical field:

The invention relates to a fast-construction high-bearing-capacity permeable ground and a laying method, belonging to the technical field of road pavement laying, in particular to the pavement laying technology of pedestrian crossings.

Background technique:

Sponge city is a new generation of urban rainwater management concept. The main idea is that cities need to flexibly deal with flood disasters caused by rainwater, that is, they can fully absorb, store, infiltrate and purify rainwater, and release the stored water when needed. Save water to make full use of it. Rainwater infiltration is the first link in the sponge city project. If the rainwater cannot quickly infiltrate in place during a heavy rainstorm, it will easily cause rainwater to gather and cause waterlogging, and the sponge city will become empty talk.

Currently, permeable bricks are used to infiltrate rainwater from sidewalks and squares into the ground. At present, the permeable bricks at home and abroad all use the small pores between the concrete aggregates and the gaps connected between the bricks to permeate water. Since these pores and gaps are easily filled with dust, soil, etc., and lose their water permeability, most of the current permeable bricks lose their water permeability after half a year to one year of paving. Even ordinary permeable bricks that have not lost their water-permeable function can be laid in such a way that little rainwater seeps into the ground during heavy rains. The reasons are: a) the base layer under the permeable bricks is basically impermeable. If the base layer is made into a permeable base layer, its strength is difficult to guarantee, resulting in the road being easily damaged; Areas with extremely low water pollution rates will not help solve the problem of urban rain and flood disasters.

The patent document with application number 201720189632.6 discloses a high-bearing-capacity permeable ground structure and a laying method suitable for laying urban permeable ground. It includes a permeable ground brick surface layer, a mortar bonding layer, a reinforced concrete stress layer and a water storage layer of gravel or construction waste fragments arranged from top to bottom. After the surface layer of the permeable floor brick is firmly bonded, drill down along the permeable hole on the permeable brick to penetrate the mortar bonding layer and the concrete stress layer. When rainwater falls on the road surface, the surface water of the permeable floor tiles will flow into the water guide groove and the water guide hole and directly flow into the gravel in the aquifer. The patented permeable ground can effectively maintain the permeable effect of the permeable ground for a long time, and can greatly improve the bearing capacity of the permeable ground.

The disadvantage of the above-mentioned prior art is: although the permeable principle of the permeable pavement brick can make the permeable brick itself have a very high water permeability, the bonded mortar and concrete stress layer under it are impermeable and must be installed on the permeable brick. After the laying is completed and glued firmly, most construction units will find it troublesome to drill the mortar and concrete below it, and the construction period will be long and they will have resistance. In addition, the reinforced concrete bearing layer must be poured on site, which is difficult and costly.

Invention content:

The invention aims to provide a permeable floor with high bearing capacity and a laying method with high laying efficiency and good water permeability effect, which can be quickly constructed.

The purpose of the present invention is achieved like this:

A high-bearing-capacity permeable ground capable of rapid construction, which includes an aquifer superimposed from bottom to top, a reinforced concrete permeable slab, a gravel stabilization layer arranged between the aquifer and the reinforced concrete permeable slab, and a set The adhesive layer on the upper surface of the reinforced concrete permeable slab, the permeable bricks arranged on the adhesive layer, it also includes a special curb stone, the cross-sectional structure of the special curb stone is composed of the left half and the right half The broken line step-shaped structure is formed, the bottom of the right half of the special curb goes deep into the aquifer; the reinforced concrete permeable slab is placed on the top of the right half of the special curb; the steel bar The large concrete permeable slab is a mesh-like structure uniformly distributed with a plurality of water-permeable holes, and steel bars are arranged at positions avoiding the water-permeable holes of the mesh plate.

The height from the top of the right half of the special curb to the top of the left half is equal to the sum of the thicknesses of the bonding layer, the reinforced concrete permeable slab, the masonry mortar layer and the permeable brick; the length L of the special curb It is equal to the width W of the reinforced concrete permeable slab.

The permeable holes of the reinforced concrete permeable slab are bucket-shaped structures with a large top and a small bottom.

The permeable bricks are permeable bricks with circular permeable holes.

A method for laying the above-mentioned high-bearing-capacity permeable ground capable of rapid construction, which includes the following steps:

A: Reinforced concrete permeable slabs, special curbstones and permeable bricks with circular permeable holes are prefabricated in the factory;

B: Dig a ditch equal to the width of the sidewalk at the position of the sidewalk;

C: lay single-size construction waste recycled aggregate and flatten it to form an aquifer;

D: Lay a gravel stabilization layer above the aquifer and flatten it with a light roller;

E: A special curb is buried near the side of the tree, and the bottom of the right half of the special curb goes deep into the aquifer, and is laid with slurry after digging a narrow ditch;

F: Reinforced concrete permeable slabs are laid above the special curb and gravel stabilization layer, and leveled with a leveling mortar layer; the laying position of the reinforced concrete permeable slab is staggered with that of the special curb, and the contact surface between the two is laid with grout;

G: The permeable hole of the reinforced concrete permeable slab is filled with sand-free macroporous ceramsite concrete;

H: Permeable bricks with circular permeable holes are laid on the top of the reinforced concrete permeable slab to form the sidewalk surface, and ordinary masonry mortar is used for paving when laying;

I: Install ordinary curbs on the other side of the road.

The aquifer is paved with single-grain grade construction waste recycled aggregate or ordinary gravel.

The invention can realize effective rapid permeation, and without reducing the bearing capacity of the permeable ground, improve the factory production level, avoid on-site operations such as cast-in-place concrete and on-site drilling, improve construction efficiency, and reduce production costs.

Description of drawings:

Fig. 1 is the cross-sectional structure schematic diagram of permeable ground of the present invention

Fig. 2 is the structural representation of special-purpose curb stone of the present invention

Fig. 3 is the structural representation of reinforced concrete permeable slab of the present invention

Fig. 4 is the structural representation of permeable brick of the present invention

Fig. 5 is a schematic cross-sectional structure diagram of a permeable pavement implemented in the present invention

Detailed ways:

Below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present invention is further described:

The road involved in the present invention is mainly the position of the sidewalk. In the existing road design, plants are planted on the sidewalk, which is also designed for environmental beautification. The composition of permeable pavement of the present invention is as follows:

In this embodiment, the permeable pavement of the present invention includes an aquifer 7 stacked from bottom to top, a reinforced concrete permeable slab 5, and a gravel stabilization layer arranged between the aquifer 7 and the reinforced concrete permeable slab 5 6. The bonding layer 4 arranged on the upper surface of the reinforced concrete permeable slab 5, the permeable brick 3 arranged on the bonding layer 4, in order to achieve the purpose of the present invention, it also includes a special curb 1, the The cross-sectional structure of the special curb 1 is a broken line stepped structure composed of the left half and the right half, the bottom of the right half of the special curb 1 goes deep into the aquifer 7; the reinforced concrete permeable The large slab 5 is placed on the top of the right half of the special curb 1; the reinforced concrete permeable slab 5 is a mesh-like structure uniformly distributed with a plurality of permeable holes 52, and the water-permeable The positions of the holes are provided with steel bars 51 .

The height H from the top of the right half of the special curb 1 to the top of the left half is equal to the sum of the thicknesses of the masonry mortar 2, the reinforced concrete permeable slab 5, the bonding layer 4 and the permeable brick 3.

The length L of the special-purpose curb 1 is equal to the width W of the reinforced concrete permeable slab 5, so that the curb stone and the permeable slab can be laid in staggered joints.

In this embodiment, the permeable holes 52 of the reinforced concrete permeable slab 5 are bucket-shaped structures with a large top and a small bottom.

The permeable brick 3 described in this embodiment is a permeable brick with a circular permeable hole 31, as shown in Figure 4,

The laying method of the high bearing capacity permeable ground capable of rapid construction of the present invention comprises the following steps:

A: Prefabricated reinforced concrete permeable slab 5, special curb 1 and permeable brick 3 with circular permeable hole 31 in the factory according to the above structure; this reduces the difficulty of on-site construction and saves man-hours.

B: Dig a ditch equal to the width of the sidewalk at the position of the sidewalk;

C: Lay single-size construction waste recycled aggregate and flatten it to form an aquifer 7;

D: Lay the gravel stabilization layer 6 above the aquifer 7, and flatten it with a light road roller;

E: A special curb stone 1 is buried near the side of the tree, the bottom of the right half of the special curb stone 1 goes deep into the aquifer 7, and the slurry is laid after digging a narrow ditch;

F: The reinforced concrete permeable slab 5 is laid on the top of the special curb 1 and the gravel stabilization layer 6, and the leveling mortar layer 2 is required for leveling; Sitting slurry laying on the surface;

G: the permeable hole 52 of the reinforced concrete permeable slab 5 is filled with sand-free macroporous ceramsite concrete;

H: Lay permeable bricks 3 with circular permeable holes on top of the reinforced concrete permeable slab 5 to form the pavement surface layer, which is paved with ordinary masonry mortar;

I: Install ordinary curbs on the other side of the road.

The cross-section of the final paved road surface is shown in Fig. 5 .

In this embodiment, the curb stone 1 is a special curb stone designed to prevent banyan tree roots from being damaged, and its structure is shown in Figure 2, that is, the cross-sectional structure of the special curb stone 1 is composed of the left half and the right half. A folded line stepped structure is formed, in which the bottom of the right half is buried in the aquifer 7, and from the top of the right half, reinforced concrete permeable large slabs 5 are laid sequentially upwards, including a leveling mortar layer 2 and an adhesive layer 4 And the pavement surface layer paved by permeable bricks 3. Therefore, the height H from the top of the lower right part of the curb to the top of the upper left part is equal to the sum of the thicknesses of the above layers. The length L of the curb is equal to the width W of the reinforced concrete permeable slab 5 .

In this embodiment, the sidewalk surface is paved with permeable bricks 3 with circular permeable holes 31 to ensure rapid water permeability of the structure.

Permeable brick 3 also can adopt the permeable brick of the square or regular hexagonal structure that has circular permeable hole to lay.

In this embodiment, the bonding layer 4 is common masonry mortar, which is used to connect the reinforced concrete permeable slab 5 and the pavement pavement paved with permeable bricks. The use of this ordinary mortar to lay the ground can increase the firmness of the ground.

As shown in Figure 3, the reinforced concrete permeable large slab 5 of the present invention is a mesh-like structure evenly distributed with a plurality of water-permeable holes 52, and steel bars 51 are arranged in the mesh structure, and the reinforced concrete permeable large slab 5 is produced using factory prefabricated patterns to increase its bending rigidity. In the reinforced concrete permeable large slab 5, bucket-shaped permeable holes 52 are evenly distributed. The bucket-shaped permeable hole 52 is filled with sand-free macroporous ceramsite concrete. This structure relies on reinforced concrete to improve the flexural bearing capacity of the permeable ground, and relies on sand-free macroporous ceramsite concrete to achieve the following functions: 1) its strength meets the downward pressure on the pavement bricks; 2) it can quickly permeate 3) Once the circular permeable hole on the permeable pavement blocks is blocked, the permeable function can be restored by poking the blockage into the ceramsite concrete with a simple tool such as a steel drill.

The gravel stabilization layer 6 can be made of the same raw material as the aquifer 7, but its particle size should be one or two grades smaller than the raw material particle size of the aquifer 7, so that it can be flattened and reinforced concrete with a light road roller. The permeable slab 5 is laid flat.

The aquifer 7 should be paved with single-grain construction waste recycled aggregate or common gravel. See attached table 1 for the measured results of water storage rate of waste concrete recycled aggregate.

Table 1 Water storage rate of aquifer materials (%)

Main working principle of the present invention:

1) First, the reinforced concrete permeable slab is prefabricated in the factory. When the construction needs, the reinforced concrete permeable slab is directly transported to the construction site for assembly and installation.

2) Since the bucket-shaped permeable hole of the reinforced concrete permeable slab is filled with sand-free large-pore ceramsite concrete, once the permeable hole is blocked by mortar during laying, the ceramsite below the hole can be poked with a steel drill along the permeable hole , so that it can restore the water permeability without having to use tools such as percussion drills for drilling.

3) When the rain falls on the road, the surface water of the permeable brick 3 will flow into the water guide groove and then flow through the circular permeable hole 31 to the funnel-shaped permeable hole of the reinforced concrete permeable slab, and then pass through the ceramsite concrete in the funnel-shaped permeable hole directly into the aquifer 7.

4) After using it for a period of time, if the circular permeable hole of the permeable brick is blocked by sand, you can use a steel drill or a cordless hand drill to clean and maintain the hole to maintain its permeable function for a long time.

The beneficial effects of the present invention are as follows:

1) Efficient construction. Reinforced concrete permeable slabs can be prefabricated in the factory, and after they are transported to the construction site, they can be installed quickly and efficiently.

2) Little impact on road traffic. Only on the sidewalk, the construction area is small, no road closure or only a short-term traffic control plan is required.

3) The combined use of reinforced curbstones and reinforced concrete permeable slabs can prevent the roots of roadside plants from penetrating the permeable ground structure, greatly prolonging the service life of the structure.

4) The post-maintenance of the whole structure is simple and the maintenance cost is low. It has a wide range of applications and can be used in urban sidewalks, urban squares, urban parks, residential areas and other places.

Claims (6)

1. A high-bearing-capacity permeable ground that can be constructed quickly, which includes a bottom-up superimposed aquifer (7), a reinforced concrete permeable slab (5), and a water-reservoir (7) and a reinforced concrete permeable slab The gravel stabilization layer (6) between the slabs (5), the adhesive layer (4) arranged on the upper surface of the reinforced concrete permeable slab (5), the permeable layer (4) arranged on the adhesive layer (4) The brick (3) is characterized in that it also includes a special curb (1), the cross-sectional structure of the special curb (1) is a broken line stepped structure composed of the left half and the right half, and the special road The bottom of the right half of the curb (1) goes deep into the aquifer (7); the reinforced concrete permeable slab (5) is placed on the top of the right half of the special curb (1); the steel bar The large concrete permeable slab (5) is a mesh-like structure uniformly distributed with a plurality of water-permeable holes (52), and steel bars (51) are arranged at positions avoiding the water-permeable holes of the mesh plate. 2. The fast-construction high-bearing-capacity permeable ground as claimed in claim 1 is characterized in that the height (H) from the top of the right half of the special curb (1) to the top of the left half is equal to that of the masonry mortar The sum of the thicknesses of layer (2), reinforced concrete permeable slab (5), and bonding layer (4) and permeable brick (3); The width (W) of the large plates 5 is equal. 3. The fast-constructable high-bearing-capacity permeable ground as claimed in claim 1 or 2, characterized in that the permeable holes (52) of the reinforced concrete permeable slabs (5) are in the shape of a bucket with a large top and a small bottom structure. 4. The fast-construction high-bearing-capacity permeable ground as claimed in claim 1, characterized in that said permeable brick (3) is a permeable brick with circular permeable holes (31). 5. A method for laying the high-bearing-capacity permeable ground described in claim 1, characterized in that it comprises the steps of: A: Prefabricated reinforced concrete permeable slabs (5), special curbstones (1) and permeable bricks (3) with circular permeable holes (31) in the factory according to the structure described in claim 1; B: Dig a ditch equal to the width of the sidewalk at the position of the sidewalk; C: laying single-size construction waste recycled aggregate and flattening to form an aquifer (7); D: Lay the gravel stabilization layer (6) above the aquifer (7), and flatten it with a light road roller; E: A special curb (1) is buried near the side of the tree, and the bottom of the right half of the special curb (1) goes deep into the aquifer (7), and is laid by slurry after digging a narrow ditch; F: Reinforced concrete permeable slabs (5) are laid above the special curb stones (1) and gravel stabilization layer (6); Sitting slurry laying on the contact surface; G: the permeable hole (52) of the reinforced concrete permeable slab (5) is filled with sand-free macroporous ceramsite concrete; H: laying permeable bricks (3) with circular permeable holes above the reinforced concrete permeable slab (5) to form the pavement surface layer, which is paved with ordinary masonry mortar; I: Install ordinary curbs on the other side of the road. 6. The method for laying the permeable ground with high bearing capacity and fast construction as claimed in claim 5, characterized in that said aquifer (7) is laid with single-grain construction waste recycled aggregate or common crushed stone.