CN110565476B - Road rainwater collection system beneficial to improving heat island effect of residential area - Google Patents

Abstract

The invention relates to a road rainwater collection system beneficial to improving a heat island effect of a residential area, which is provided with a permeable ground, wherein the permeable ground is mainly formed by laying a permeable plate, a stand column is supported below the perspective plate, a bottom foundation is arranged below the stand column, a space between the permeable plate and the bottom foundation is a water collecting space, a submersible pump and an upper limit water level meter for draining water can be arranged in the water collecting space, an output pipeline of the submersible pump is connected into a reservoir, a vertical baffle plate and a horizontal water baffle plate are arranged in the reservoir, a water purifying submersible pump and a mortar pump are arranged, the permeable plate is preferably of a double-layer structure, the upper layer is a sand-based permeable layer, the lower layer is a stone-based permeable layer, hard frames are arranged around the stone-based permeable layer, and the hard frames surround the side surface of the stone-based. The invention can improve the absorbing and collecting capacity of the road surface to the rainwater runoff and is beneficial to slowing down the heat island effect.

Description

Road rainwater collection system beneficial to improving heat island effect of residential area

Technical Field

The invention relates to a road rainwater collection system which is beneficial to improving the heat island effect of a residential area and is suitable for collecting rainwater on the ground and the road surface of a living community, an entertainment and leisure activity place and other similar occasions.

Background

The heat island effect is a phenomenon that the temperature of a region is higher than that of the surrounding region, because a large amount of artificial heat is generated in a city, and meanwhile, because high heat accumulators such as buildings and roads and the like and the greenbelt are reduced, the temperature of the city is high, so that the temperature of the local region of the city is obviously higher than that of the peripheral region, usually, on a temperature map near the ground, the temperature change of the suburb is small, and the city is a high-temperature region, namely an island protruding out of the sea. For example, a large number of artificial structures such as concrete, asphalt pavement, various building wall surfaces and the like in cities change the thermal property of the underlying surface, and the artificial structures absorb heat quickly and have small heat capacity, and under the same solar radiation condition, the artificial structures are heated more quickly than the natural underlying surface (greenbelt, water surface and the like), so that the surface temperature of the artificial structures is obviously higher than that of the natural underlying surface; as another example, urban surfaces have less water content and more heat enters the air in the form of sensible heat, causing the air to heat up. Meanwhile, the absorption rate of the urban ground surface to sunlight is higher than that of the natural ground surface, more solar radiation can be absorbed, more heat can be obtained by air, and the temperature is increased. In summer, when the lawn temperature is 32 ℃ and the tree crown temperature is 30 ℃, the temperature of the cement ground can reach 57 ℃, the temperature of the asphalt road is higher than 63 ℃, and the high-temperature objects form a huge heat source to bake the surrounding atmosphere. Therefore, changing the heat island effect requires many-sided work, in which the living environment of residents in a residential area is improved, and under the condition that the greenery use land is limited, a road rainwater collection system capable of effectively relieving the phenomenon is designed, and the heat island effect of the residential area is relieved by rainwater.

In order to meet the requirements of sponge cities, rainwater resources are effectively utilized, urban waterlogging is avoided, the water seepage pavement (ground) technology is developed, and the existing water seepage pavement is mainly paved by adopting various ground plates with certain water seepage/water permeability, so that the ground accumulated water seeps into a soil layer below the plates through the ground plates. The present infiltration/board that permeates water (the brick that permeates water) has multiform, one kind is the brick that permeates water (or called lawn brick) that sets up vertical through-hole, the through-hole on this kind of brick that permeates water is the macroscopic view through-hole, utilize the model shaping, downthehole filling is planted soil and is planted herbaceous plant, planting soil in the through-hole links to each other with the soil of ground under the brick, consequently, to some places that are adapted to vegetation, the application of this kind of brick that permeates water can gain better effect, can set up on parking area or road bank protection usually, the rainwater permeates downwards in the soil layer through these through-holes after raining. Because the through holes of the permeable brick are large, the formed road surface is uneven and is not suitable for roads or places where people walk or move.

The other type of water permeable brick depends on the porosity of the material, and mainly comprises sand-based water permeable bricks mainly made of sand and a binder and stone-based water permeable bricks mainly made of broken stones and cement (concrete), wherein the stone-based water permeable bricks are low in cost, rough in surface, poor in aesthetic effect and easy to block by soil carried in water, the sand-based water permeable bricks are relatively high in cost, better in appearance than the stone-based water permeable bricks, limited in water permeability, and also capable of being blocked, and the sand-based water permeable bricks are limited in strength and incapable of bearing larger pressure. In addition, the ecological water permeable bricks belong to sand-based water permeable bricks, and the water permeable performance and the pollutant adsorption performance are improved by using a certain treatment material and a preparation process, so that the water permeable capacity of the product is improved, the product is not easy to block, and the ecological water permeable bricks can be popularized and utilized in occasions with higher requirements.

However, in many cases, for example, the foundation of the pavement of a residential area (including the ground of an outdoor activity place) is mostly a hardened foundation or is doped with a large amount of building residue and soil, and the water permeability is poor, so that water permeating the lower part of the brick is difficult to continuously permeate downwards when the water permeable brick is laid on the foundation, the aim of leading rainwater to enter the ground cannot be fulfilled, the water storage capacity of the ground surface is poor, the evaporation and heat dissipation capacity is obviously reduced, and the heat island effect is strengthened.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a road rainwater collection system which is beneficial to improving the heat island effect of a residential area, so that the rainwater runoff absorption and collection capacity of a road surface is improved, and the heat island effect is improved.

The technical scheme of the invention is as follows: the utility model provides a help improving road rainwater collecting system of residential area heat island effect, is equipped with the ground of permeating water, the ground of permeating water is mainly laid by the panel that permeates water and is formed, the following support of perspective panel has the stand, be the bottom basis below the stand, the space between panel and the bottom basis of permeating water is the catchment space, the bottom basis is equipped with a plurality of vertical aqueducts that extend to bottom basis below or is not equipped with the vertical aqueduct that extends to bottom basis below, the equal opening in upper and lower both ends of vertical aqueduct.

A submersible pump for draining water can be arranged in the water collecting space.

And the water collecting space can be internally provided with an upper limit water level gauge for detecting whether the water level reaches the upper limit of the drainage control.

The device can also be provided with a reservoir, and an output pipeline of the submersible pump is connected to an inlet of the reservoir.

The water storage device is characterized in that a vertical baffle plate is preferably arranged between an inlet side area and a main water storage area of the water storage tank, the top end of the vertical baffle plate extends to the top of the tank or is at least higher than the height of a control water level, a space is reserved between the lower end of the vertical baffle plate and the bottom of the tank to serve as a water flow channel, and an inlet of the water storage tank is positioned at the upper part of the inlet side.

A horizontal water-stop plate is preferably arranged in the main water storage area, and a space is reserved between the water-stop plate and the vertical baffle plate.

The water-stop sheet is preferably formed by arranging a plurality of single folded plates.

The vertex angle of the single folding plate is upward, and a gap is reserved between the bottom edge and the bottom edge of the adjacent single folding plate.

And a submersible pump for purifying water and draining water can be arranged on the water-stop sheet.

The bottom of the reservoir can be provided with a scraper device.

The one end of keeping away from the side of intaking at the bottom of the pool of cistern sets up long-pending husky groove and is used for extracting the mortar pump of long-pending husky inslot silt.

The permeable plate is preferably of a double-layer structure, the upper layer is a sand-based permeable layer, the lower layer is a stone-based permeable layer, and hard frames are arranged around the stone-based permeable layer and surround the side surface of the stone-based permeable layer.

The upper surface of the sand-based permeable layer is preferably provided with a plurality of transverse grooves or a convex-concave structure with a plurality of vertical bulges, and concave parts in the convex-concave structure form latticed grooves.

The sand-based permeable layer is preferably provided with a surface permeable cushion.

The upper surface of the sand-based permeable layer is preferably provided with a plurality of transverse grooves or a convex-concave structure with a plurality of vertical bulges, concave parts in the convex-concave structure form latticed grooves, the surface layer permeable pad is only adhered to the top surface of convex parts of the sand-based permeable layer and is covered on the corresponding transverse grooves or the corresponding concave parts of the convex-concave structure, and the transverse grooves or the convex-concave structure form water flow channels between the surface layer permeable pad and the sand-based permeable layer

The surface water-permeable cushion is preferably a plate (sheet) made of water-impermeable plastic material or rubber material with small through holes distributed throughout.

A plurality of vertical through holes are preferably distributed on the stone-based permeable layer.

The hard frame can be provided with vertical protrusions and vertical grooves which correspond to each other on two opposite outer side surfaces respectively.

The matching mode (setting mode of position, size and shape) of the vertical protrusions and the vertical grooves corresponding to each other on the two opposite outer side surfaces of the hard frame is preferably as follows: the two plates are spliced, and after the vertical protrusions and the vertical grooves on the corresponding opposite outer side surfaces of the two plates are inserted in place, a small gap is supported between the adjacent plates.

Under the condition, when the surface water-permeable cushion is arranged on the sand-based water-permeable layer, the area of the surface water-permeable cushion is slightly larger than that of the main body part of the plate, so that the corresponding sides of the surface water-permeable cushions on the two plates are mutually attached after the two plates are spliced.

The vertical protrusion and the vertical groove are both in a cylindrical shape with the outer edge of the cross section preferably being a smooth (non-angular) curve, and the middle of the curve is usually convex outwards (vertical protrusion) or concave inwards (vertical groove), and is preferably symmetrical left and right.

The length (vertical size) of vertical arch and vertical recess can all be less than the height of stereoplasm frame, lower extreme to the bottom of stereoplasm frame, upper end do not to the top of stereoplasm limit degree, promptly, the top of upper end leaves partial stereoplasm frame, the lower extreme with the entity lower extreme parallel and level of stereoplasm frame, its below then do not have the stereoplasm frame, from this, when guaranteeing the grafting function, guarantee the wholeness of stereoplasm frame, avoid the obvious destruction to stereoplasm frame bulk strength.

The invention has the beneficial effects that: as the ground is set to be the permeable ground and the water storage space is directly arranged under the permeable ground, the on-site rainwater absorption and storage capacity is greatly improved, the goal of sponge city is realized, and the water storage space is filled with water for a long time or frequently and is relatively closed, so that the lower part of the water permeable ground is in a moist state and a basically saturated humidity state, and the plates of the water permeable ground are made of porous materials, wherein a large number of capillary holes exist, the humidity (moisture) below can be lifted to the surface by means of capillary effect, can form continuous evaporation under the irradiation of sunlight, takes away the heat energy of the ground by means of latent heat of vaporization and rising of water vapor, is beneficial to eliminating or slowing down the heat island effect, the mechanism is similar to that of a green land plant, and meanwhile, a water source can be provided for green land irrigation on site, and the heat island effect is further slowed down by increasing or maintaining green land irrigation and promoting plant growth; the water storage space is supported under the ground plate, and water penetrating through the pavement plate directly enters the water storage space, so that a foundation soil layer is not required to have water permeability, the technical problem that the foundation soil layer of people trapped for a long time restricts the water permeability is solved, a hard foundation is allowed to be built at the bottom of the water storage space, and the stability of a ground structure is ensured; the water storage space is just below the road surface, so that a water storage place and facilities do not need to be additionally arranged, a water delivery pipeline does not need to be arranged, the burden of municipal sewage pipelines does not need to be increased, and the technical problem of lacking of the water storage place, which troubles people for a long time, is solved; the top of the water storage space is provided with the water permeable plate, and the water permeable plate is contacted and communicated with the atmosphere through the gap on the water permeable plate, so that oxygen in the water storage space is maintained, anaerobic biochemical reaction caused by oxygen deficiency is avoided or effectively reduced, and obvious peculiar smell and water quality deterioration are avoided; due to the arrangement of the submersible pump and the water level detection device, after the water level in the water collecting space exceeds the limit, the submersible pump can be started to perform forced drainage, and water is drained to a special water storage device or a drainage system, so that the problem of surface water accumulation caused by the saturation of the field water storage capacity is avoided; the inlet side of the underground reservoir is provided with the baffle plate extending from top to bottom, so that the sedimentation of particles in water is facilitated, the bottom of the reservoir is provided with the scraper plate and the sand accumulating groove, the sand accumulating groove is internally provided with the mortar pump, the bottom of the sand accumulating groove is provided with the pressure sensor, and the reservoir is internally provided with the water level sensor and the drainage pump, so that forced drainage can be carried out after the water level reaches a certain height, the sand accumulating condition in the sand accumulating groove can be judged according to the water level and the pressure signal of the pressure sensor, and the sand discharging and pollution discharging can be carried out; because the flow distribution plate is arranged into a folded plate shape, and the bottom end of the folded plate is provided with the opening, the settleable substances in the water above the flow distribution plate can slide downwards along the flow distribution plate after settling on the flow distribution plate, and finally flow downwards from the bottom end opening and fall into the bottom of the pool, and meanwhile, the water flow and the fluctuation below the flow distribution plate basically cannot influence the state of the water above the flow distribution plate and the settlement of pollutants; because the permeable plate adopts an upper layer structure and a lower layer structure, the upper layer is a sand-based permeable layer, and the lower layer is a stone-based permeable layer, the permeable brick utilizes the good permeability, filtration and antifouling performance of the sand-based permeable brick, particularly the ecological sand-based permeable brick, while obtaining the relatively beautiful effect of the sand-based permeable brick, is beneficial to reducing or preventing the pollution and blockage on the surface of the permeable brick while ensuring the permeable effect, improving the filtering effect on impurities and pollutants in water, improving the water quality of collected water and avoiding the deterioration of the water quality of stored water caused by excessive deposition of the impurities; because the lower layer adopts the stone-based permeable layer, the thickness can be set as required, the relatively higher strength requirement is met, the influence on the permeable effect due to the increased thickness is avoided or reduced, meanwhile, under the support of the lower layer, the upper layer and the lower layer are tightly combined together, the pressure applied to the upper layer is transmitted to the lower layer, and the lower layer with higher strength ensures that the sand-based permeable layer cannot be crushed due to pressure in a higher pressure range, so the thickness of the upper layer can be reduced, and the influence on the permeable capacity is reduced; the strip-shaped guide grooves or the criss-cross guide grooves are formed in the surface of the sand-based permeable layer, so that surface water can flow favorably, particularly, under the condition that the permeable cushion is laid on the surface of the sand-based permeable layer, unevenness caused by arrangement of the guide grooves is avoided, water penetrating through the permeable cushion can flow smoothly, and even if the local water quantity is too large or the water penetrating capacity of the local permeable plate is reduced, local surface water accumulation is difficult to form; as the hard frame made of high-grade cement concrete is arranged on the periphery of the stone-based permeable layer and reinforced concrete can be adopted according to needs, the integral compression resistance and bending resistance (shearing resistance) of the permeable plate are greatly improved, the permeable plate is allowed to be used in an overhead manner, and a foundation is provided for realizing the rainwater collection system.

Drawings

FIG. 1 is a schematic structural view of a rainwater collection system according to the present invention;

FIG. 2 is a schematic cross-sectional view of a water-stop sheet according to the present invention;

FIG. 3 is a schematic cross-sectional view of a water-permeable sheet according to the present invention;

FIG. 4 is a schematic cross-sectional view of another water-permeable sheet according to the present invention;

FIG. 5 is a schematic cross-sectional view of a third water-permeable sheet according to the present invention;

FIG. 6 is a schematic cross-sectional view of a fourth water-permeable sheet according to the present invention;

fig. 7 is a schematic top view of two water-permeable sheets of the present invention in a state of being adjacent (spliced together).

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to fig. 1, the road rainwater collecting system according to the present invention is provided with a water permeable ground surface, which is mainly formed by laying water permeable plates 10, wherein a vertical column 30 is supported below the transparent plates, a bottom foundation 41 is below the vertical column, an existing hard pavement foundation or other foundation enough to ensure stable pavement can be adopted, and usually no waterproof treatment is required to allow water to penetrate into soil below the bottom foundation, preferably, a plurality of vertical water conduits extending below the foundation are arranged on the bottom foundation, the upper and lower ends of the vertical water conduits are both open, the upper end of the vertical water conduits is open in a water collecting space, lateral through holes are preferably arranged on a pipe section below the foundation, i.e. a perforated pipe form is adopted, thereby, rainwater can further penetrate into the ground through the water conduits to supplement urban groundwater, and under the condition, no pollution source or pollutant is observed on the surrounding ground surface, the underground infiltration of rainwater is similar to the infiltration under the natural environment, can not pollute groundwater, if necessary, can adopt the purification measure, or make the water barrier and do not establish the aqueduct on the basis of the bottom, form the physical isolation with groundwater.

The setting and the distribution of stand can be according to prior art to guarantee to the effective support of all panel that permeates water, for example, can set up the four corners department at the panel that permeates water, and can set up the great supporting disk of area with the top of stand, support the angle of four panels of crossing together simultaneously.

The columns may be of any suitable material, for example, stone columns, or reinforced concrete columns, etc.

The upright posts and the supported water-permeable plates can be bonded by adopting an adhesive so as to be beneficial to stability.

The space that is supported out by the stand between the panel and the bottom basis of permeating water is catchment space 50 or called catch basin (underground water collecting tank), and the rainwater passes behind the panel that permeates water, gets into catchment space, can set up the height in catchment space according to actual need and actual conditions, and under the normal conditions, can make catchment space can hold local general rainfall.

The peripheral edge of the water collecting space can be provided with a side wall 42, and the permeable plate at the corresponding position is supported by the side wall.

The top of the side wall can be provided with a clamping groove structure used for buckling the corresponding water permeable plate.

The side walls and the supported permeable plates can be bonded by using an adhesive to be beneficial to stability.

The side wall may or may not be provided with a waterproof layer.

A submersible pump 62 may be provided in the water collecting space for pumping out water from the water collecting space.

The water collecting space can be internally provided with an upper limit water level gauge 63 for detecting whether the water level reaches the upper limit of drainage control, when the water level rises to the upper limit of drainage control, the submersible pump is controlled to start according to a corresponding signal of the upper limit water level gauge through an automatic control device, water is discharged, the primary water discharge under the condition can be preset, so that the water level is reduced to the lower limit of the required drainage control, the corresponding lower limit water level gauge can be also arranged for detecting whether the water level is lower than the lower limit of the drainage control, and when the water level is lower than the lower limit of the drainage control, the automatic control device can stop the operation of the submersible pump, so that certain water in the water collecting space can be kept, the humidity environment below the water permeable plate is kept, and the saturated.

The surface pad 20 can be laid on the board permeates water, the surface pad adopts to permeate water and makes or for permeating water the pad, is the slice, for example, adopts the material that arbitrary adaptation as the road surface such as pervious rubber pad or plastic pad, can realize the function of permeating water through the mode of perforating, can regard ground as the track etc. from this, because prior art directly will block up the board that permeates water at subaerial rubber track, consequently, should adopt the mode of independently laying the ground that permeates water (surface pad).

The permeable plate can be provided with a floor drain 70 which can be embedded on the transparent plate by adopting a proper existing floor drain device, and the bottom outlet of the floor drain is communicated with the water collecting space below the permeable plate, so that rapid infiltration can be realized by the floor drain when more rainwater exists.

The height of the cover 71 of the floor drain can be lower than the height of the top surface of the water permeable sheet, when the water permeable sheet is provided with surface grooves (transverse grooves or grooves formed by a convex-concave structure), the height of the upper surface of the cover of the floor drain is basically equal to the height of the groove bottom of the grooves, and at least part of the grooves pass through the cover of the floor drain, so that water in the grooves can flow into the floor drain through the cover of the floor drain.

Or the height of the upper surface of the cover of the floor drain is equal to that of the upper surface of the thorough plate, the side wall of the floor drain is provided with a plurality of through holes 72, and when the water-permeable plate is provided with surface grooves (transverse grooves or grooves formed by a convex-concave structure), the through holes in the side wall of the floor drain are similar to the height of the grooves and are at least communicated with partial grooves, so that water in the grooves can flow into the floor drain through the through holes in the side wall of the floor drain.

Depending on the circumstances, a water reservoir 80, preferably an underground water reservoir, can be provided, the output line 65 of which is connected to the inlet of the water reservoir, whereby the water is discharged into a special water reservoir.

Preferably, a vertical baffle 81 is arranged between the inlet side area and the main water storage area of the reservoir, the top end of the vertical baffle extends to the top of the reservoir or is at least higher than the height of the controlled water level, a gap is reserved between the lower end of the vertical baffle and the bottom of the reservoir to be used as a water flow channel, the inlet of the reservoir is positioned at the upper part of the inlet side, the inlet water is blocked by the baffle to flow downwards and then flows upwards after passing through the baffle, and in the process, particles and the like carried in the water are separated from the water under the action of inertia and are deposited at the bottom of the reservoir.

A horizontal water-stop sheet 82 is provided in the primary impoundment area.

Referring to fig. 2, the water-stop sheet is formed by arranging a plurality of single-folded plates 87, the lengths of two side surfaces are preferably equal, the vertex angles of the single-folded plates are upward, gaps are reserved between the bottom edges of the single-folded plates and the bottom edges of the adjacent single-folded plates, and sediment in water above the water-stop sheet flows downwards along the inclined edges of the folded plates after falling on the single-folded plates and falls to the area below the water-stop sheet through the gaps between the adjacent folded plates at the bottom.

A plurality of transverse (perpendicular to the length direction of the single folding plates) connecting rods 86 can be arranged, the tops of the single folding plates are welded together with the transverse connecting rods or fastened together through bolts and connecting pieces to form an integral structure, and the integral structure is installed through a bracket arranged on the wall of the reservoir or fixed on the wall of the reservoir through bolts.

The height of water-stop sheet can be according to actual need, separates main water storage area for the water purification district of top and the settling zone of below through the water-stop sheet, on the baffle or other suitable positions in water purification district set up the immersible pump 91 that is used for the water purification drainage, when needs output water, start this immersible pump with the water purification output in water purification district.

The bottom of the pool of cistern is equipped with scraper means 88, the bottom of the pool of cistern sets up long-range sediment groove 84 in the one end of intaking the side far away, begins to push the sediment groove to sediment in the bottom of the pool from the side of intaking through scraper means, set up mortar pump 92 in the sediment groove, can take out the sedimentary sediment in the sediment groove through mortar pump.

The bottom of long-pending husky groove is preferred to be equipped with pressure sensor for detect tank bottom pressure, be equipped with the fluviograph in the cistern for detect water level height, can obtain the pressure that long-pending husky inslot silt produced through the pressure calculation of the pressure sensor's in the water level height that this fluviograph detected and long-pending husky inslot, and then obtain the deposit volume or the deposit height of silt, after surpassing certain limit, start the mortar pump and extract silt.

The reservoir may employ a concrete structure.

The water permeable plate can be any plate with corresponding strength and water permeability, for example, an existing corresponding water permeable brick.

Referring to fig. 3-7, preferably, the permeable plate is of a double-layer structure, the upper layer is a sand-based permeable layer 12, which can be made according to the existing manufacturing method of sand-based permeable bricks or sand-based permeable bricks with corresponding thickness and shape, the lower layer is a stone-based permeable layer 16, which can be made according to the existing manufacturing method of stone-based permeable bricks or stone-based permeable bricks with corresponding thickness and shape, the periphery of the stone-based permeable layer is provided with a hard frame 17, which surrounds the side surface of the stone-based permeable layer, the upper and lower end surfaces of which can be generally flush with the upper and lower end surfaces of the stone-based permeable layer, respectively, and can be made of concrete or reinforced concrete, and can also be made of bonding materials with corresponding strength. Can produce the stereoplasm frame and the sand base permeable bed (sand base brick that permeates water) of stone base permeable bed earlier, the up end of stereoplasm frame and the lower extreme of sand base permeable bed face its bonding together, the mould (sand base permeable bed towards down) as the stone base permeable bed according to this, the stone base permeable bed will be produced according to the manufacturing method of stone base brick that permeates water wherein, can consolidate sand base permeable bed and stereoplasm together at the consolidation in-process of stone base permeable bed, form whole panel, under this situation, do not require that sand base permeable bed and stereoplasm frame have too high cohesive strength when bonding. When vertical through holes need to be formed in the stone-based permeable layer, a cylindrical mold for forming corresponding through holes can be inserted.

Surround all sides of stone base permeable bed through stereoplasm frame for pressure and shearing force above the stereoplasm frame not only can bear, but also can protect the stone base permeable bed.

The sand-based permeable layer and the area and the shape of the sand-based permeable layer are preferably the same as those of the stone-based permeable layer and the hard frame, and the outer edge (outer side surface) of the hard frame are on the same plane. Generally, it may have a rectangular parallelepiped shape as a whole.

The stone-based permeable layer is generally bonded with the sand-based permeable layer and the hard frame into a whole, and no gap is reserved between the mutual connection surfaces. For special designs, grooves or the like may also be provided on the interconnection surfaces.

Preferably, the upper surface of the sand-based permeable layer is provided with a plurality of transverse grooves 13 or a convex-concave structure with a plurality of vertical protrusions, concave parts in the convex-concave structure form latticed grooves, surface rainwater can be easily accumulated in the grooves through the arrangement of the grooves, when a plurality of plates are mutually paved into a larger area (the grooves of adjacent plates are mutually communicated), water can smoothly circulate in a water flow channel formed by the grooves, the contact area between the surface water and the surface of the sand-based permeable layer is increased through the arrangement of the grooves, and the improvement of the water permeability is facilitated.

The horizontal grooves and the vertical bulges are uniformly or regularly distributed on the upper surface of the sand-based permeable layer.

Preferably, the sand-based permeable layer, especially the sand-based permeable layer with a plurality of transverse grooves or a convex-concave structure with a plurality of vertical protrusions on the upper surface, can be provided with a surface permeable cushion 11, which can be provided with the existing permeable plastic floor, rubber floor or artificial lawn (block) in various forms, adhered on the surface of the sand-based permeable layer, and can also be provided with small through holes distributed over the existing impermeable plastic floor and rubber floor with various characteristics in a perforation manner to form a corresponding permeable floor, so that the plate is more wear-resistant and is beneficial to prolonging the service life. The small through holes have high density, and a plurality of small through holes are communicated with the grooves (if the grooves are formed) on the surface of the sand-based water permeable layer, so that smoother water flow is formed.

When the sand-based permeable layer is provided with a plurality of transverse grooves on the upper surface or is in a convex-concave structure with a plurality of vertical protrusions, the surface layer permeable pad is only adhered to the top surface of the convex part of the sand-based permeable layer and covers the concave part of the transverse groove or the convex-concave structure, the transverse grooves or the convex-concave structure form water flow channels positioned below the surface layer permeable pad, and water can easily flow into the water flow channels after passing through the surface layer permeable pad.

The setting of the permeable pad on the surface layer not only changes the surface appearance and the surface texture of the board, but also can be set into various corresponding outer surfaces as required, for example, the permeable pad is used for laying a ground running way, the rubber ground is not required to be set again, the construction is not only convenient, but also the product quality and the waste gas treatment in the production are easy to control, and the environmental pollution caused by the setting of the rubber ground is avoided.

Preferably, there are a plurality of vertical through-holes 14 on the stone base permeable bed, because the main function of stone base permeable bed in this kind of panel is to support sand base permeable bed, reduce or avoid sand base permeable bed to receive the shearing force because of top load and/or below stereoplasm frame support, make the size of controlling these vertical through-holes, just can be in the enough little scope because of the shear force control that sets up vertical through-hole and produce, can not lead to the damage of sand base permeable bed, and simultaneously, the weight of stone base permeable bed has been reduced, and, hydroenergy can pass stone base permeable bed smoothly through these vertical through-holes, consequently, allow lower floor (stone base permeable bed and stereoplasm frame) to have bigger thickness, and then have bigger load-carrying capacity.

Preferably, the hard frame is provided with vertical protrusions 18 and vertical grooves 19 corresponding to each other on opposite outer sides, and generally, the center of the cross section is a straight line perpendicular to one outer side, and the other outer side through which the straight line passes is opposite to the outer side. When the plate is paved, the adjacent outer side surfaces (corresponding to the opposite outer side surfaces on the same plate) of the adjacent plates are mutually butted, and the vertical protrusions on the corresponding outer side surfaces are inserted into the corresponding vertical grooves, so that the corresponding connecting parts are positioned.

Can be through the vertical protrusion and the vertical recess of pegging graft each other, support out a little clearance 15 (see fig. 6) between the adjacent lateral surface of adjacent panel, for example, the 5 millimeter wide clearance, the corresponding adjacent lateral surface of adjacent panel can not laminate completely after inserting the position, only there is certain laminating region between the vertical protrusion of pegging graft each other and the vertical recess, so that permeate water through this clearance, form stronger water permeability, can suitably control the width in this clearance, avoid bringing inconvenience for people because of the clearance is too big.

In the above case, when a surface water-permeable mat is provided, the area of the surface water-permeable mat may be slightly larger than the area of the main part of the plate material, the edges of the surface water-permeable mat extend from the respective side edges of the respective sand-based perspective layer, and the extension of the surface perspective layer on the adjacent plate material in the direction of the respective outer side face should be just enough to cover the respective gap between the adjacent plate materials, thereby leaving no gap on the surface.

Preferably, the cross sections of the vertical protrusions and the vertical grooves are curved surfaces, for example, the cross sections are approximately semicircular, so that collision and damage during carrying and storage are reduced or avoided.

The technical means disclosed by the invention can be combined arbitrarily to form a plurality of different technical schemes except for special description and the further limitation that one technical means is another technical means.

Claims (3)

1. A road rainwater collecting system helpful for improving heat island effect of residential areas is provided with a permeable ground and a reservoir, wherein the permeable ground is mainly formed by laying permeable plates, and is characterized in that a stand column is supported below the permeable plates, a bottom foundation is arranged below the stand column, a space between the permeable plates and the bottom foundation is a water collecting space, the bottom foundation is provided with a plurality of vertical water guide pipes extending to the lower part of the bottom foundation or is not provided with the vertical water guide pipes extending to the lower part of the bottom foundation, the upper end and the lower end of each vertical water guide pipe are both open, the permeable plates are of a double-layer structure, the upper layer is a sand-based permeable layer, the lower layer is a stone-based permeable layer, the upper surface of the sand-based permeable layer is provided with a plurality of transverse grooves or a convex-concave structure with a plurality of vertical protrusions, and concave parts in the convex-concave structure form, the sand-based permeable layer is provided with a surface permeable pad, a submersible pump for draining water and an upper limit water level gauge for detecting whether the water level reaches the upper limit of drainage control are arranged in the water collecting space, an output pipeline of the submersible pump is connected into an inlet of the reservoir, a vertical baffle plate is arranged between an inlet side area and a main water storage area of the reservoir, the top end of the vertical baffle plate extends to the top of the reservoir or is at least higher than the height of the control water level, a space is reserved between the lower end of the vertical baffle plate and the bottom of the reservoir as a water flow channel, the inlet of the reservoir is positioned at the upper part of the inlet side, a horizontal water baffle plate is arranged in the main water storage area, a space is reserved between the water baffle plate and the vertical baffle plate, the water baffle plate is formed by arranging a plurality of single folded plates, the vertex angle of the single folded plate faces upwards, a gap is reserved between the bottom edge and, the bottom of the pool of cistern is equipped with scraper means, and its one end of keeping away from the side of intaking sets up long-pending husky groove and is used for extracting the mortar pump of long-pending husky inslot silt.

2. The system for collecting rainwater on a road according to claim 1, wherein said stone-based water permeable layer is provided with a hard rim around the circumference thereof to surround the side surface of the stone-based water permeable layer.

3. A road rain water collecting system according to claim 2, characterised in that vertical through holes are distributed in the stone-based permeable layer.

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