CN214116162U - Sediment device suitable for sponge city pavement - Google Patents

Abstract

The application relates to a sedimentation device suitable for sponge city sidewalks, which comprises a sidewalk body, wherein the sidewalk body comprises a permeable concrete pavement layer, a permeable concrete layer and a graded crushed stone layer which are sequentially arranged from top to bottom, a drainage cavity is arranged in the sidewalk body, the side wall of the drainage cavity comprises a water outlet surface, hinder the surface of water and two sides, the diapire of drainage cavity and the bottom of level join in marriage the metalling all are provided with first prevention of seepage piece, first prevention of seepage piece is used for blockking the infiltration water in order to carry out filterable filtering mechanism with rainwater water conservancy diversion to the drainage cavity in, be provided with in the drainage cavity to be arranged in carrying out the impurity to in the rainwater, be provided with on the diapire of drainage cavity and be used for discharging the rainwater after filtering to this external infiltration pipe of people's road, this application has the advantage that prevents that the rainwater from causing structural destruction to the concrete layer of mating formation that permeates water, the concrete layer that permeates water and level join in marriage the metalling.

Description

Sediment device suitable for sponge city pavement

Technical Field

The application relates to the field of road construction, in particular to a sedimentation device suitable for sponge city sidewalks.

Background

Sidewalks refer to portions of a road that are dedicated to pedestrian traffic that are separated by curbs or guardrails and other similar facilities. Sidewalks are very common in cities, and sidewalks are arranged beside general streets. Grass or trees are arranged between the sidewalk and the motor vehicle lane in some places.

Chinese patent application publication No. CN110258246A discloses a pedestrian road structure and construction method thereof, and a pedestrian road structure from up including soil horizon, graded rubble layer, concrete layer and face brick layer down in proper order, the face brick layer is formed by the brick concatenation of permeating water, concrete layer includes the supporting layer that links to each other with graded rubble layer and the permeable bed that links to each other with the face brick layer, permeable bed uses the water permeability concrete. The concrete layer is arranged in a form of a combination of a supporting layer and a permeable layer structure. The supporting layer is made of common concrete and has better supporting strength. And the permeable bed has stronger water permeability, therefore the rainwater can flow into the permeable bed fast after passing through the permeable brick, and then is discharged to the roadway direction and the supporting layer direction through the permeable bed, so that accumulated water is not easy to form on the surface of the concrete layer. The accumulated water cannot be splashed when the pedal is stepped on.

The related art described above has the following drawbacks: when raining, rainwater accessible permeable bed permeates to the position at supporting layer place, and partial rainwater can permeate to soil horizon and the position at level and join in marriage the metalling place through the supporting layer, and after soil horizon and the inside long-term ponding of level and join in marriage the metalling of metalling, unstable phenomenon appears in the structure that can lead to soil horizon and level to join in marriage the metalling, leads to whole pavement road surface to appear sunken even when serious.

Disclosure of Invention

In order to prevent that ponding from influencing the structure on pavement, this application provides a sediment device suitable for sponge city pavement.

The application provides a sediment device suitable for sponge city pavement adopts following technical scheme:

the utility model provides a sediment device suitable for sponge city pavement, includes the pavement body, the pavement body is including the concrete layer of mating formation that permeates water, the concrete layer that permeates water and the graded broken stone layer that from top to bottom sets gradually, this internal position that just is located the concrete layer that permeates water and the graded broken stone layer place of pavement has seted up the drainage cavity, the drainage cavity is located one side of pavement body, the lateral wall of drainage cavity includes the play surface of water that links up with the concrete layer that permeates water and graded broken stone layer, keeps away from the surface of water that hinders of play surface of water and two sides adjacent to the play surface of water, the diapire of drainage cavity and the bottom of graded broken stone layer all are provided with first prevention of seepage part, first prevention part is used for hindering the infiltration water in order to carry out rainwater water conservancy diversion to the drainage cavity, be provided with in the drainage cavity and be used for carrying out filterable filtering mechanism to impurity in the rainwater, be provided with being used for on the diapire of drainage cavity and be used for oozing the rainwater after filtering to the external seepage of pavement body to the pavement A tube.

Through adopting above-mentioned technical scheme, when raining, the rainwater can permeate the concrete layer of mating formation that permeates water, the concrete layer and the garrulous layer of grading of permeating water, because of the setting of first prevention of seepage piece, thereby make the rainwater enter into to the drainage cavity in through going out the surface of water and side and be collected, filtering mechanism can filter the partial impurity in the rainwater this moment, the hole on the rainwater accessible infiltration pipe after the filtration enters into in the infiltration pipe, thereby make the infiltration pipe discharge the rainwater to municipal drainage system in, prevent that the rainwater from mating formation the layer to the concrete that permeates water, the concrete layer and the garrulous layer of grading of permeating water cause structural destruction, and filtering mechanism's setting can prevent that the impurity in the rainwater from causing the jam to the infiltration pipe, thereby the discharge effect of infiltration pipe to the rainwater has been improved.

Preferably, the filtering mechanism comprises a frame body which is integrally arranged in a rectangular shape, the surfaces of the frame body facing the top wall and the bottom wall of the drainage cavity are both arranged in an opening manner, a filtering piece for filtering rainwater is arranged in the frame body, first supporting rods are arranged on the surface of the frame body facing the top wall of the drainage cavity and positioned at four corners of the frame body, a plurality of second anti-seepage pieces which are abutted against the top wall of the drainage cavity are arranged at the end parts of the first supporting rods far away from the frame body, second anti-seepage pieces are arranged on the surface of the frame body facing the bottom wall of the drainage cavity and positioned at four corners of the frame body, a plurality of second supporting rods are used for supporting the first anti-seepage pieces, a first baffle is arranged on the surface of the frame body facing the water blocking surface and is abutted against the two side surfaces and the bottom wall of the drainage cavity, a gap is reserved between the first baffle and the second anti-seepage pieces, and a water inlet space is reserved between the frame body and the water outlet surface as well as the two side surfaces, a water outlet space is reserved between the frame body and the water blocking surface, and the seepage pipe is located in the water outlet space and located between the first baffle and the water blocking surface.

By adopting the technical scheme, due to the arrangement of the second anti-seepage piece, rainwater is blocked by the second anti-seepage piece, so that the rainwater cannot directly fall into the frame body, at the moment, the rainwater enters the water inlet space through the water outlet surface and the two side surfaces along the permeable concrete layer and the graded gravel layer, the rainwater is blocked by the first baffle plate to enter the water outlet space, so that the rainwater can be positioned below the frame body to be collected, impurities in the rainwater are filtered by the filtering piece in the frame body in the continuous collecting process of the rainwater, the filtered rainwater can cross the frame body and enter the water outlet space along the gap between the first baffle plate and the second anti-seepage piece, and the filtered rainwater is collected by the seepage pipe in the water outlet space, so that the filtering effect on the rainwater is improved; the second anti-seepage piece, the first supporting rod, the second supporting rod and the first baffle are arranged, so that the effect of guiding the movement of rainwater in the drainage cavity can be achieved, and the rainwater treatment effect is improved.

Preferably, filter a plurality of sedimentation pipes including densely covered in the framework, every the sedimentation pipe all is the tilt state and sets up in the framework, and is adjacent be parallel to each other between the sedimentation pipe, every the both ends of sedimentation pipe are located the position at framework both sides opening place respectively.

Through adopting above-mentioned technical scheme, the sedimentation tube that adopts a plurality of slopes to set up has utilized shallow pond to deposit the theory, has cut apart into a series of shallow layers sedimentation layer with the precipitation space in the frame, when water passes through the sedimentation tube that a plurality of slopes set up, impurity or the suspended solid of aquatic can deposit in the pipe chute, and water can flow along the pipe chute upward this moment, and the impurity of separation moves towards the pipe chute below because of gravity, and the sedimentation efficiency is high in the setting of the sedimentation tube that adopts a plurality of slopes to set up, has improved the precipitation effect to impurity in the rainwater.

Preferably, a second baffle is arranged on the surface of the frame body facing the water outlet surface, the second baffle is used for being abutted against the second anti-seepage piece and the two side surfaces, and a gap is reserved between the second baffle and the first anti-seepage piece.

Through adopting above-mentioned technical scheme, the setting of second baffle can prevent that the rainwater after filtering from entering into the space of intaking once more for the rainwater after filtering can enter into the framework below along the clearance between second baffle and the first prevention of seepage piece, thereby makes the infiltration water be discharged through the infiltration pipe in being led to the play water space, thereby has further improved the treatment effect to the rainwater.

Preferably, the first anti-seepage piece is a first water-blocking plate fixedly arranged on the bottom wall of the drainage cavity and the bottom of the graded gravel layer, and a first anti-seepage geotextile is paved on the surface of the first water-blocking plate, which is far away from the frame body.

Through adopting above-mentioned technical scheme, the setting that adopts first water-stop plate and first prevention of seepage geotechnological cloth has improved the effect that blocks of rainwater to indirectly improved the water conservancy diversion effect to the rainwater, prevent that the rainwater from permeating the lower part to the pedestrian path body through first prevention of seepage spare and causing the damage to the structure of pedestrian path body.

Preferably, a sealing groove is formed in the position, where the first baffle is located, of the first water blocking plate, and the sealing groove is used for allowing the first baffle to be inserted into the edge, far away from the frame body, of the first baffle.

Through adopting above-mentioned technical scheme, the setting of seal groove has improved the sealed effect between first baffle and the first board that blocks water, prevents that the rainwater of framework below from flowing to the effluent space along the clearance between first baffle and the first board that blocks water to indirect filter effect to the rainwater that has improved.

Preferably, the second seepage-proofing part is arranged to be fixedly connected to a second water-blocking plate at the end part, far away from the frame body, of the first support rods, and a second seepage-proofing geotextile is paved on the surface, far away from the first support rods, of the second water-blocking plate.

Through adopting above-mentioned technical scheme, the setting of second water-blocking plate and second prevention of seepage geotechnological cloth has improved the effect that blocks to the rainwater, prevents that the rainwater from directly descending to the framework in through the concrete layer of mating formation that permeates water, leads to the rainwater after the filtration can't enter into to go out the water space in, has further indirectly improved the filtration treatment effect to the rainwater.

Preferably, the concrete layer of mating formation permeates water is including the splice layer that is located the fixed bed on the concrete layer of permeating water and is located drainage cavity top, the spread groove has been seted up along the circumference position on splice layer in the position that just is located splice layer place on the fixed bed, be provided with the connecting strip that is used for immigration to the spread groove on the splice layer, the splice layer can be dismantled through spread groove and connecting strip and be connected to on the fixed bed, the second hinders the water board butt joint to on the splice layer.

Through adopting above-mentioned technical scheme, filter a period of back, a large amount of impurity can pile up to the below of framework, shifts out through driving the connecting strip with the splice layer and lie in the spread groove, can lie in the drainage cavity with the framework and take out to be convenient for clear up the impurity that the drainage cavity depositd, be convenient for clear up the maintenance to a plurality of sedimentation pipes simultaneously.

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

when raining, rainwater enters the water inlet space through the water outlet surface of the drainage cavity after passing through the permeable concrete pavement layer, the permeable concrete layer and the graded crushed stone layer and is blocked by the first water-blocking plate and the second water-blocking plate, the first baffle plate blocks the rainwater from entering the water outlet space, so that the rainwater is blocked below the frame body, the rainwater is continuously collected and then passes through the plurality of obliquely arranged sedimentation pipes, so that impurities in the rainwater are precipitated in the sedimentation pipes, the rainwater after precipitating the impurities is blocked by the second baffle plate, so that the rainwater after precipitating the impurities passes through the frame body and enters the water outlet space along a gap between the first baffle plate and the second water-blocking plate, enters the infiltration pipes through holes in the infiltration pipes and is discharged into the municipal drainage system, the rainwater is prevented from structurally damaging the permeable concrete pavement layer, the permeable concrete layer and the graded crushed stone layer, and the impurities in the rainwater can be prevented from blocking the infiltration pipes by the arrangement of the filtering mechanism, thereby improving the drainage effect of the infiltration pipe on rainwater.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

fig. 3 is a schematic view of a cross-sectional structure B-B in fig. 1.

Description of reference numerals: 1. a sidewalk body; 11. a pervious concrete pavement layer; 12. a pervious concrete layer; 13. grading a crushed stone layer; 14. a drainage cavity; 141. discharging from the water surface; 142. a water blocking surface; 143. a side surface; 144. infiltrating a pipe; 15. a frame body; 151. a first support bar; 152. a second support bar; 153. a first baffle plate; 154. a water inlet space; 155. a water outlet space; 156. a settling tube; 157. a second baffle; 16. a first water blocking plate; 161. a first impermeable geotextile; 162. a sealing groove; 17. a second water blocking plate; 171. a second impermeable geotextile; 18. fixing grooves; 181. splicing the layers; 182. connecting grooves; 183. and (4) connecting strips.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses sediment device suitable for sponge city pavement. With reference to fig. 1 and 2, a sediment device suitable for sponge city pavement includes pavement body 1, and pavement body 1 includes the concrete layer 11 that permeates water, the concrete layer 12 that permeates water and the graded rubble layer 13 that from top to bottom sets gradually.

With reference to fig. 2 and 3, in order to collect the permeated rainwater, a drainage cavity 14 is formed in the sidewalk body 1 at the positions where the permeable concrete layer 12 and the graded crushed stone layer 13 are located, the drainage cavity 14 is located at one side of the sidewalk body 1, and a side wall of the drainage cavity 14 includes a water outlet surface 141 connected with the permeable concrete layer 12 and the graded crushed stone layer 13, a water blocking surface 142 far away from the water outlet surface 141, and two side surfaces 143 adjacent to the water outlet surface 141.

With reference to fig. 2 and 3, in order to prevent rainwater from penetrating into the bottom wall of the drainage cavity 14, first impermeable pieces are arranged on the bottom wall of the drainage cavity 14 and the bottom of the graded gravel layer 13, the first impermeable pieces are arranged to be first water blocking plates 16 fixedly arranged on the bottom wall of the drainage cavity 14 and the bottom of the graded gravel layer 13, and first impermeable geotextiles 161 are laid on the surfaces of the first water blocking plates 16, which face away from the frame body 15; when the first impermeable geotextile 161 is installed and fixed, nails can be used for fixing the first impermeable geotextile 161 on the first water-blocking plate 16; in other embodiments, the first water barrier 16 or the first impermeable geotextile 161 may be used alone, or the first impermeable geotextile 161 may be replaced with a water-impermeable plastic cloth.

With reference to fig. 2 and 3, in order to discharge the permeated water collected in the drainage cavity 14, a filtering mechanism for filtering impurities in the rainwater is disposed in the drainage cavity 14, and a seeping pipe 144 for discharging the filtered rainwater to the outside of the pavement body 1 is disposed on the bottom wall of the drainage cavity 14; the infiltration pipe 144 is provided with fine through holes, and when rainwater flows to the position of the infiltration pipe 144, the infiltration water enters the infiltration pipe 144 along the through holes on the infiltration pipe 144, so that the infiltration water is discharged through the infiltration pipe 144.

Combine fig. 2 and fig. 3, filtering mechanism is including the whole framework 15 that is the rectangle setting, framework 15 all is the opening setting towards the face of the roof of drainage cavity 14 and diapire, be provided with in the framework 15 and be used for carrying out filterable filter piece to the rainwater, filter piece including a plurality of sedimentation tubes 156 of densely covered in framework 15, every sedimentation tube 156 all is the slope state and sets up in framework 15, be mutual parallel arrangement between the adjacent sedimentation tube 156, the both ends of every sedimentation tube 156 are located the position at framework 15 both sides opening place respectively.

Referring to fig. 2 and 3, in order to mount the frame 15 in the drainage cavity 14, first support bars 151 are provided at four corners of the frame 15 on a surface of the frame 15 facing the top wall of the drainage cavity 14, second support bars 152 are provided at four corners of the frame 15 on a surface of the frame 15 facing the bottom wall of the drainage cavity 14, and the plurality of second support bars 152 are supported by the first water blocking plate 16.

Referring to fig. 2 and 3, in order to guide the permeated water entering the drainage cavity 14, so that the permeated water can move along the bottom of the frame 15 toward the upper part of the frame 15 through the plurality of settling tubes 156, a water inlet space 154 is left between the frame 15 and the water outlet surface 141 and the two side surfaces 143, and a water outlet space 155 is left between the frame 15 and the water blocking surface 142.

As shown in fig. 2, in order to prevent rainwater from flowing directly into the frame body 15 through the permeable concrete pavement 11, a second impermeable member for abutting against the top wall of the drainage cavity 14 is disposed at an end portion of the first support rods 151 away from the frame body 15, the second impermeable member is configured to be fixedly connected to a second water-blocking plate 17 of the first support rods 151 away from the end portion of the frame body 15, and a second impermeable geotextile 171 is laid on a surface of the second water-blocking plate 17 away from the first support rods 151.

With reference to fig. 2 and 3, in order to prevent unfiltered seepage water at the bottom of the frame body 15 from directly flowing to the position of the seepage pipe 144, a first baffle 153 is arranged on a surface of the frame body 15 facing the water blocking surface 142, the seepage pipe 144 is located in the water outlet space 155 and between the first baffle 153 and the water blocking surface 142, the first baffle 153 is used for abutting against the two side surfaces 143 and the bottom wall of the drainage cavity 14, a gap is left between the first baffle 153 and the second impermeable member, rainwater can be blocked by the first baffle 153, and thus rainwater can be collected on the first water blocking plate 16 on the bottom wall of the drainage cavity 14; a sealing groove 162 is formed in the first water blocking plate 16 and located at the position of the first baffle 153, and the sealing groove 162 is used for inserting the edge of the first baffle 153 away from the frame body 15; the edge of the first baffle 153 is inserted into the sealing groove 162, so that the sealing property between the first baffle 153 and the first water blocking plate 16 is improved, and the unfiltered rainwater is prevented from flowing to the position of the infiltration pipe 144 through the gap between the first water blocking plate 16 and the first baffle 153.

With reference to fig. 2 and 3, in order to prevent the filtered permeated water from flowing into the water inlet space 154 beyond the frame 15, a second baffle 157 is disposed on a surface of the frame 15 facing the water outlet surface 141, the second baffle 157 is configured to abut against the second impermeable member and the two side surfaces 143, and a gap is left between the second baffle 157 and the first water blocking plate 16; when the filtered rainwater is blocked by the second blocking plate 157 through the plurality of settling tubes 156, the filtered rainwater passes through the frame 15 and enters the water outlet space 155 along the gap between the second blocking plate 157 and the first water blocking plate 16, and is discharged through the infiltration tube 144.

With reference to fig. 1 and 2, in order to facilitate the treatment of impurities precipitated in the drainage cavity 14, the permeable concrete pavement 11 includes a fixing layer 18 on the permeable concrete layer 12 and a splicing layer 181 above the drainage cavity 14; in order to improve the concatenation effect between concatenation layer 181 and the fixed layer 18, the connection groove 182 has been seted up along the circumferential position of concatenation layer 181 in the position that just is located concatenation layer 181 place on the fixed layer 18, be provided with on the concatenation layer 181 and be used for immigrating to the connecting strip 183 in the connection groove 182, the concatenation layer 181 can be dismantled through connection groove 182 and connecting strip 183 and be connected to on the fixed layer 18, the second hinders the water board 17 butt to the concatenation layer 181 on.

The implementation principle of the sedimentation device suitable for sponge city sidewalk in the embodiment of the application is as follows: when raining, rainwater flows to the positions of the second water-blocking plate 17 and the second impermeable geotextile 171 along the permeable concrete pavement layer 11, the permeable concrete layer 12 and the graded gravel layer 13 and is blocked, the rainwater seeps out through the water outlet surface 141 of the drainage cavity 14, the seepage water flowing to the bottom wall of the drainage cavity 14 is blocked by the first water-blocking plate 16 and the first baffle 153, when the seepage water continuously seeps into the drainage cavity 14, the seepage water can be positioned in the frame body 15 and flows over the plurality of sedimentation pipes 156, so that impurities in the rainwater are filtered and precipitated, the seepage water after filtering and precipitating the impurities is blocked by the second baffle 157, the seepage water flows to the position of the seepage pipe 144 in the water outlet space 155 through the frame body 15, the seepage water enters the seepage pipe 144 along the through holes on the seepage pipe 144, so that the seepage water is discharged through the seepage pipe 144, and the rainwater is discharged into the municipal system by the seepage pipe 144, prevent that the rainwater from causing structural destruction to the concrete pavement layer 11 that permeates water, the concrete layer 12 that permeates water and grading rubble layer 13 to the impurity that filtering mechanism's setting can prevent in the rainwater causes the jam to ooze pipe 144, thereby has improved the discharge effect of oozing pipe 144 to the rainwater.

Claims (8)

1. The utility model provides a sediment device suitable for sponge city pavement which characterized in that: the water-permeable concrete pavement structure comprises a sidewalk body (1), wherein the sidewalk body (1) comprises a water-permeable concrete pavement layer (11), a water-permeable concrete layer (12) and a graded gravel layer (13) which are sequentially arranged from top to bottom, a drainage cavity (14) is formed in the position, where the water-permeable concrete layer (12) and the graded gravel layer (13) are located, of the sidewalk body (1), the drainage cavity (14) is located on one side of the sidewalk body (1), the side wall of the drainage cavity (14) comprises a water outlet surface (141) connected with the water-permeable concrete layer (12) and the graded gravel layer (13), a water blocking surface (142) far away from the water outlet surface (141) and two side surfaces (143) adjacent to the water outlet surface (141), first seepage-proof pieces are arranged on the bottom wall of the drainage cavity (14) and the bottom of the graded gravel layer (13) and are used for blocking seepage water so as to guide rainwater into the drainage cavity (14), the rainwater drainage structure is characterized in that a filtering mechanism used for filtering impurities in rainwater is arranged in the drainage cavity (14), and a seepage pipe (144) used for discharging filtered rainwater out of the pedestrian path body (1) is arranged on the bottom wall of the drainage cavity (14).

2. A settling device suitable for sponge urban sidewalks according to claim 1, characterized in that: the filtering mechanism comprises a frame body (15) which is integrally arranged in a rectangular shape, the surfaces of the top wall and the bottom wall of the frame body (15) facing the drainage cavity (14) are both arranged in an opening manner, a filtering piece for filtering rainwater is arranged in the frame body (15), first supporting rods (151) are arranged on the surface of the frame body (15) facing the top wall of the drainage cavity (14) and positioned at four corners of the frame body (15), second anti-seepage pieces used for being abutted against the top wall of the drainage cavity (14) are arranged at the end parts, far away from the frame body (15), of the first supporting rods (151), second supporting rods (152) are arranged on the surface of the frame body (15) facing the bottom wall of the drainage cavity (14) and positioned at four corners of the frame body (15), the second supporting rods (152) are used for supporting the first anti-seepage pieces, and first baffle plates (153) are arranged on the surface of the frame body (15) facing the water blocking surface (142), the first baffle (153) is used for being abutted against the bottom walls of the two side faces (143) and the drainage cavity (14), a gap is reserved between the first baffle (153) and the second anti-seepage piece, a water inlet space (154) is reserved between the frame body (15) and the water outlet face (141) and between the two side faces (143), a water outlet space (155) is reserved between the frame body (15) and the water blocking face (142), and the seepage pipe (144) is located in the water outlet space (155) and located between the first baffle (153) and the water blocking face (142).

3. A settling device suitable for sponge urban sidewalks according to claim 2, characterized in that: it includes a plurality of sedimentation pipes (156) of densely covered in framework (15) to filter, every sedimentation pipe (156) all are the tilt state and set up in framework (15), and is adjacent be mutual parallel arrangement between sedimentation pipe (156), every the both ends of sedimentation pipe (156) are located the position at framework (15) both sides opening place respectively.

4. A settling device suitable for sponge urban sidewalks according to claim 2, characterized in that: a second baffle (157) is arranged on the surface, facing the water outlet surface (141), of the frame body (15), the second baffle (157) is used for being abutted to a second anti-seepage piece and the two side surfaces (143), and a gap is reserved between the second baffle (157) and the first anti-seepage piece.

5. A settling device suitable for sponge urban sidewalks according to claim 2, characterized in that: the first anti-seepage piece is a first water-blocking plate (16) fixedly arranged on the bottom wall of the drainage cavity (14) and the bottom of the graded gravel layer (13), and first anti-seepage geotextile (161) is paved on the surface of the first water-blocking plate (16) departing from the frame body (15).

6. A sedimentation device suitable for sponge urban sidewalks according to claim 5, characterized in that: a sealing groove (162) is formed in the position, where the first baffle (153) is located, of the first water blocking plate (16), and the sealing groove (162) is used for enabling the edge, far away from the frame body (15), of the first baffle (153) to be inserted.

7. A settling device suitable for sponge urban sidewalks according to claim 2, characterized in that: the second anti-seepage piece is fixedly connected to a second water-blocking plate (17) at the end part of the frame body (15) far away from the first support rods (151), and second anti-seepage geotextile (171) is paved on the surface of the second water-blocking plate (17) far away from the first support rods (151).

8. A settling device suitable for sponge urban sidewalks according to claim 7, characterized in that: the concrete pavement layer (11) of permeating water is including being located the splice layer (181) of fixed bed (18) on the concrete layer (12) of permeating water and being located drainage cavity (14) top, the fixed bed (18) are gone up and are located the position at splice layer (181) place and seted up connecting groove (182) along the circumferential direction position of splice layer (181), be provided with connecting strip (183) that are used for immigrating to connecting groove (182) on splice layer (181), splice layer (181) can be dismantled through connecting groove (182) and connecting strip (183) and be connected to on fixed bed (18), the second hinders water board (17) butt to splice layer (181).

Images