CN115306090B

CN115306090B - Sponge city basement roof slope water storage and drainage construction method

Info

Publication number: CN115306090B
Application number: CN202210863968.1A
Authority: CN
Inventors: 芦宏康; 吴超中; 饶大全
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-08-01
Anticipated expiration: 2042-07-21
Also published as: CN115306090A

Abstract

The invention discloses a construction method for slope water storage and drainage of a sponge city basement roof, which belongs to the field of sponge city construction and comprises the following steps: A1. the method comprises the steps of using a top permeable ground surface at the top of a layer of indoor space, arranging a top parapet wall at the top of the layer of indoor space, paving a root-resistant waterproof roll on one side of the top parapet wall, which is opposite to a greening slope of a basement roof, and sequentially paving plain soil, a leveling layer, a gravel layer, middle sand, permeable concrete, dry and hard cement mortar and ceramic permeable bricks upwards; A2. the water storage and drainage device is internally provided with a water storage tank, the root of the parapet wall at the top is embedded with a seepage calandria, and the seepage calandria is embedded downwards and connected into the water storage tank; A3. paving a greening slope of the basement; this application can have fine infiltration and discharge function to the rainwater, and can carry out effectual purification to the rainwater at infiltration and discharge's in-process, guaranteed the rainwater cleanliness, be convenient for follow-up use, do benefit to the vegetation growth of device top.

Description

Sponge city basement roof slope water storage and drainage construction method

Technical Field

The invention belongs to the field of sponge city construction, and particularly relates to a slope water storage and drainage construction method for a sponge city basement roof.

Background

The sponge city is a new generation city rain and flood management concept, and is characterized in that the city has good elasticity in the aspects of adapting to environmental changes, responding to natural disasters caused by rainwater, and the like, and can also be called as a 'water elasticity city', and the international general term is 'low-influence development rainwater system construction'. Its main functions are to absorb water, store water, permeate water and purify water when raining, and to release and use the stored water when needed.

Cities are places with high population concentration and highly developed socioeconomic performance, and are also places with most outstanding contradiction between resources and environmental bearing capacity. In recent years, due to climate change and weakening of environmental bearing capacity, water logging is needed when raining and drought is needed after raining, so that urban water ecology in China faces two extremes: on one hand, urban waterlogging is serious, and rain and flood management becomes a potential safety hazard affecting urban development; on the other hand, most cities have serious water shortage and serious water resource supply shortage. And a series of problems such as water ecology deterioration, water resource shortage, water environment pollution, water safety shortage guarantee and the like are also brought along with the method. With the development of social economy, urban weather disasters frequently occur, and the requirements of cities on drainage engineering are higher and higher. Therefore, to keep urban health continuously developing, it is necessary to restore urban water ecology.

The sponge city is used as a path for restoring the ecology of urban water, can realize the cyclic utilization and the regeneration of the water, saves the water, solves the increasingly serious ecological crisis of the water environment in more and more cities, and furthest reduces the damage to the original ecology environment of the urban water.

In carrying out the present application, the inventors have found that at least the following problems exist in this technology:

the prior sponge city has no case that the greening slope of the basement roof has water seepage and water storage functions, the water storage and drainage pressure of the greening slope of the basement roof is increased, and meanwhile, the stored water contains more impurities, so that the subsequent water source cannot be rapidly and fully utilized, and the actual use requirement cannot be well met.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the water storage device has the advantages that the water storage device does not have the water seepage and water storage function in the prior art, and the technical problem that the stored water contains more impurities, so that the subsequent water source cannot be rapidly and fully utilized and the actual use requirement cannot be well met is solved.

In order to solve the technical problems, the inventor obtains the technical proposal of the invention through practice and summary, and the invention discloses a construction method for storing and draining water on a slope of a basement roof of a sponge city, which comprises a greening slope of the basement roof, a ground warehouse, a layer of indoor, roads and a water storing and draining device; the method comprises the following steps:

A1. the method for using the top permeable ground at the top of a layer of room comprises the following steps:

arranging a top parapet at the top of a layer of room, paving a root-resistant waterproof roll on one side of the top parapet facing away from a greening slope of a basement roof, then paving a drainage plate at the upper end of the root-resistant waterproof roll, paving plain soil and tamping up in sequence, and paving a leveling layer, a gravel layer, middle sand, permeable concrete, dry and hard cement mortar and ceramic permeable bricks;

A2. installation of water storage and drainage device

The water storage and drainage device is internally provided with a water storage tank, a seepage calandria is pre-buried at the root part of the parapet at the top, the water storage tank is downwards pre-buried and connected into the water storage tank, and the water storage tank is connected with a planting soil spraying pipe and extends to the surface of a greening slope of the basement roof;

filtering the parapet layer by using different materials in the step A1, and draining rainwater to the bottom of a seepage pipe at the bottom of a parapet layer;

a pipeline is arranged at the bottom of the reservoir and is embedded at the bottom of the reservoir, and a spray controller and a pressure pump are arranged, wherein the spray controller is suitable for controlling the pressure pump, and the pressure pump is communicated with the reservoir;

A3. paving of basement greening slope

Paving waterproof coiled materials on the top of a ground warehouse, reserving a residual space at the upper end for installing a water storage and drainage device, paving drainage plates at other positions, and installing the water storage and drainage device by a layer of indoor wall surface;

the upper ends of the waterproof coiled materials and the water storage and drainage device are sequentially paved upwards: plain soil, planting soil with the thickness of 600mm and turf, small-size shrub vegetation is planted in the middle of the basement roof greening slope, curbstone is installed to basement roof greening slope hypotenuse bottom to be close to curbstone department and bury down mouthful pipeline and install street lamp, curbstone digs and establishes the roadside ditch on one side of holding drainage device dorsad.

In a further technical scheme, the basement roof greening slope is positioned at the outer side of the top of the ground warehouse, and a leveling layer with the thickness of 50mm, a gravel layer with the thickness of 190mm, middle sand with the thickness of 19mm, permeable concrete with the thickness of 200mm and the grain size of 10-15, dry and hard cement mortar with the thickness of 19mm and ceramic permeable bricks with the thickness of 60mm are sequentially paved upwards after plain soil is tamped.

In still further technical scheme, hold drainage device still includes filtration pipe network and overflow pipe, installs the filtration pipe network on the cistern, the overflow pipe is installed towards one side of curbstone to the cistern, the cistern is close to outside bottom and passes through the pipeline and insert the spray controller, the booster pump is inserted to spray controller bottom.

In a further technical scheme, in the step A2, the infiltration pipe is installed by being inserted into a filter pipe network and extending downwards to a reservoir;

when the water level in the reservoir is full, the water flows out through the overflow pipe, permeates into the drain board through plain soil, flows to the road edge stone along the drain board, and flows out through the bottom lower port pipeline of the road edge stone and is discharged to the roadside ditch for drainage.

In a further technical scheme, in arid weather, the spray controller is manually turned on, the booster pump is used for boosting pressure, and the planting soil spray pipe is driven to spray irrigation vegetation.

In a further technical scheme, an insulation board is added to the outer side of the waterproof coiled material, which is close to one side of a basement roof greening slope, in a layer of room, and the waterproof coiled material is damaged when soil is returned.

In a further technical scheme, the infiltration pipes are uniformly distributed along the bottom of the parapet wall at the top, the distance between the infiltration pipes is 2000mm, and the infiltration pipes of each section of basement greening slope are converged into one pipeline and then discharged into the reservoir.

In a further technical scheme, the reservoir is divided into different areas according to different basement greening slopes, the volume of each unit is (2000-2190 mm) multiplied by 2000mm multiplied by 1200mm, the effective water storage capacity of the unit is 3.3-4.3 cubic meters, and the high-impact modified polypropylene raw material is paved in the reservoir.

Compared with the prior art, the invention can obtain the following technical effects:

the invention has good infiltration and drainage functions for rainwater, can effectively purify the rainwater in the infiltration and drainage process, ensures the cleanliness of the rainwater, is convenient for subsequent use, is controlled by the ground reservoir spray controller manually when the water storage and drainage device is needed, and when the spray controller is opened, the pressurizing pump is pressurized to promote the planting soil spray pipe to spray irrigation vegetation, is used for cultivating aquatic plants, has high utilization rate of rainwater, can realize the rapid cyclic utilization of the rainwater, and is energy-saving and environment-friendly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is an overall schematic diagram 1 of a construction method for slope water storage and drainage of a sponge city basement roof, which is provided by the application;

fig. 2 is an overall schematic diagram 2 of a construction method for slope water storage and drainage of a sponge city basement roof provided by the application;

FIG. 3 is a cross-sectional view of a top permeable floor at a top parapet;

FIG. 4 is a schematic view of a roof water storage and drainage device;

fig. 5 is a cross-sectional view of a basement roof.

In the figure: 1. greening slopes of the basement roof; 3. a ground warehouse; 4. a layer of chambers; 5. a road; 6. a top parapet wall; 7. a seepage pipe; 8. curbstone; 9. a lower port pipeline; 10. a road edge ditch; 12. ceramic water permeable bricks; 13. dry and hard cement mortar; 14. water permeable concrete; 15. middle sand; 16. a crushed stone layer; 17. a leveling layer; 18. plain soil; 19. a drain plate; 20. root penetration resistant waterproof coiled material; 21. a filter pipe network; 22. a reservoir; 23. discharging the planting soil spray pipe; 24. an overflow pipe; 25. a spray controller; 26. a pressurizing pump; 27. Turf; 28. planting soil; 31. waterproof coiled materials; 100. and a water storage and drainage device.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The principles of the invention will be further described with reference to the drawings and specific examples.

Example 1

Referring to fig. 1 to 3, in one embodiment of the present invention, a construction method for storing and draining water on a slope of a basement roof of a sponge city includes a greening slope 1 of the basement roof, a ground warehouse 3, a layer of rooms 4, a road 5 and a water storing and draining device 100; the method comprises the following steps:

A1. the use of a top permeable floor on top of a layer of room 4 comprises:

arranging a top parapet 6 at the top of a layer of room 4, paving a root-resistant waterproof roll 20 on one side of the top parapet 6 facing away from a basement roof greening slope 1, then fully paving a drain board 19 at the upper end of the root-resistant waterproof roll 20, sequentially paving plain soil 18 upwards and tamping, and then paving a leveling layer 17, a gravel layer 16, middle sand 15, permeable concrete 14, dry and hard cement mortar 13 and ceramic permeable bricks 12;

A2. installation of water storage and drainage device 100

The water storage and drainage device 100 is internally provided with a water storage tank 22, a seepage drain pipe 7 is pre-buried at the root part of the parapet wall 6 at the top, the seepage drain pipe is pre-buried downwards and connected into the water storage tank 22, and the water storage tank 22 is connected with a planting soil spraying pipe 23 and extends to the surface of a greening slope 1 of a basement roof;

filtering the rainwater layer by using different materials in the step A1, and draining rainwater to the positions of the seepage pipes 7 at the bottom of the parapet 6;

a pipeline is arranged at the bottom of the reservoir 22 and is embedded at the bottom of the ground reservoir 3, and a spray controller 25 and a pressure pump 26 are arranged, wherein the spray controller 25 is suitable for controlling the pressure pump 26, and the pressure pump 26 is communicated with the reservoir 22;

A3. paving of basement greening slope

A waterproof coiled material 31 is paved on the top of the ground warehouse 3, a residual space is reserved at the upper end for installing the water storage and drainage device 100, the water drainage plates 19 are fully paved at other positions, and the water storage and drainage device 100 is installed by a wall surface of a layer of indoor 4; the waterproof coiled material 31 at the seepage and discharge pipe 7 needs to be subjected to edge wrapping treatment so as to prevent water from being deposited to cause water leakage of the first floor, and the slope angle of two percent is reserved for the greening slope 1 of the basement roof, so that the later water filtering rate is increased.

The waterproof coiled material 31 and the water storage and drainage device 100 are sequentially paved upwards: plain soil 18, planting soil 28 and turf 27 of 600mm thickness, the small-size bush vegetation is planted in the middle of basement roofing greening slope 1, curb 8 is installed to basement roofing greening slope 1 hypotenuse bottom to be close to curb 8 department buries down mouthful pipeline 9 and installs the street lamp, curb 8 digs and establishes roadside ditch 10 facing away from the side of retaining drainage device 100.

Example 2

For another embodiment of the present invention, on the basis of example 1, an insulation board is added on the outer side of the waterproof roll 31 on the side of the basement roof greening slope 1, which is close to the one layer of the room 4, so that the waterproof roll 31 is damaged when soil is returned. The water storage and drainage device 100 is abutted against the insulation board. The lower port lines 9 are evenly distributed along the building at regular intervals, about 8cm from the ground. The curbs 10 are distributed at certain intervals by the road outside the curbs 8.

Example 3

Referring to fig. 4, the water storage and drainage device 100 comprises a pre-buried drain pipe 7 arranged at the bottom of the top parapet 6 and pre-buried downwards into a reservoir 22. The seepage pipe 7 can be discharged into the reservoir 22 only through the filter pipe network 21, when the water level is fully accumulated in the reservoir 22, the seepage pipe 24 flows out, the plain soil 29 permeates into the drainage plate 19, flows to the curbstone 8 along the drainage plate 19, and flows out and is discharged to the roadside ditch 10 through the bottom downpipe 9 of the curbstone 8 to flow away.

The bottom of the reservoir 22 is provided with a pressurizing and circuit pipeline and is pre-buried to the bottom of the ground reservoir 3, the bottom is controlled by a spray controller 25, and the lower part is provided with a pressurizing pump 26. When drought weather is drought, the pressurizing pump 26 can be turned on through the spraying controller 25, the pressurizing pump 26 pressurizes, and the planting soil spraying pipes 23 are driven to spray irrigation vegetation.

The filter net 21 is filtered by two layers of combination, and combining the sponge-wrapped geotextile.

The infiltration pipes 7 are evenly distributed along the bottom of the parapet 6 at the top of the planting roof, the distance between the infiltration pipes 7 is 2000mm, and all infiltration pipes 7 of each section of slope are converged into one pipeline and then discharged into the reservoir 22.

The infiltration pipes 7 are evenly distributed along the bottom of the parapet wall 6 at the top, the distance between the infiltration pipes 7 is 2000mm, and the infiltration pipes 7 of each section of basement greening slope 1 are converged into one pipeline and then discharged into the reservoir 22.

Working principle: during the use, through the infiltration structure that is equipped with, the rainwater is through ceramic water permeable brick 12, dry and hard cement mortar 13, permeable concrete 14, well sand 15, gravel layer 16, screed-coat 17 and plain soil 18 (compaction coefficient is not less than 90%)'s interception filter effect can carry out effective filtration interception with the impurity of most in the rainwater for the rainwater obtains preliminary purification, has slowed down the speed of rivers simultaneously, because of basement roofing greening slope 1 two percent slope, the rainwater after the purification flows to the position of infiltration calandria 7 of top parapet 6 bottom through the drain bar 19 of full-spread. The purified rainwater is introduced into a reservoir 22 with a filtering device filtering pipe net 21 through a seepage pipe 7 for secondary filtering and purification.

The purified rainwater is stored in the reservoir 22, when the reservoir 22 is about to be filled, the water flows out along the overflow pipe 24, slowly permeates into the drain plate 19 through plain soil 29, flows along the drain plate 19 to the curbstone 8 and flows out from the lower port pipeline 9 to the roadside ditch 10 and flows away.

The invention can have good infiltration and drainage functions on rainwater, can effectively purify the rainwater in the infiltration and drainage process, ensures the cleanliness of the rainwater, is convenient for subsequent use, is controlled by the ground reservoir spray controller 25 manually when the water storage and drainage device 100 is needed to be used through the water circulation system, and when the spray controller 25 is opened, the booster pump 26 can boost pressure to promote the planting soil spray pipes 23 to spray irrigation vegetation, is used for cultivating aquatic plants, has high utilization rate on the rainwater, can realize rapid recycling of the rainwater, and is energy-saving and environment-friendly.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A construction method for storing and draining water on a slope of a basement roof of a sponge city comprises a greening slope (1) of the basement roof, a ground warehouse (3), a layer of indoor space (4), a road (5) and a water storing and draining device (100);

the method is characterized by comprising the following steps of:

A1. the method for using the top permeable ground on the top of a layer of indoor space (4) comprises the following steps:

arranging a top parapet (6) at the top of a layer of room (4), paving a root-resistant waterproof roll (20) on one side of the top parapet (6) facing away from a basement roof greening slope (1), then fully paving a drain board (19) at the upper end of the root-resistant waterproof roll (20), sequentially paving plain soil (18) upwards and tamping, and then paving a leveling layer (17), a gravel layer (16), middle sand (15), permeable concrete (14), dry and hard cement mortar (13) and ceramic permeable bricks (12);

A2. installation of water storage and drainage device (100)

A reservoir (22) is arranged in the water storage and drainage device (100), a seepage calandria (7) is embedded at the root of the parapet wall (6) at the top, the seepage calandria is embedded downwards and connected into the reservoir (22), and a planting soil spraying pipe (23) is connected to the reservoir (22) and extends to the surface of a greening slope (1) of the basement roof;

filtering the rainwater layer by using different materials in the step A1, and draining rainwater to the positions of a seepage pipe (7) at the bottom of a parapet wall (6);

a pipeline is arranged at the bottom of the reservoir (22) and is embedded at the bottom of the ground reservoir (3), a spray controller (25) and a pressure pump (26) are arranged, the spray controller (25) is suitable for controlling the pressure pump (26), and the pressure pump (26) is communicated with the reservoir (22);

A3. paving of basement roof greening slope

A waterproof coiled material (31) is paved on the top of the ground warehouse (3), a residual space is reserved at the upper end and used for installing a water storage and drainage device (100), a drainage plate (19) is paved at other positions, and the water storage and drainage device (100) is installed by leaning against the wall surface of a layer of indoor space (4);

the waterproof coiled material (31) and the upper end of the water storage and drainage device (100) are paved in sequence upwards: plain soil (18), planting soil (28) and turf (27) of 600mm thickness, the small-size bush vegetation is planted in the middle of basement roofing greening slope (1), curb stone (8) are installed to basement roofing greening slope (1) hypotenuse bottom to be close to curb stone (8) department and bury down mouthful pipeline (9) and install street lamp, curb ditch (10) are dug to curb stone (8) one side of holding drainage device (100) dorsad.

2. The construction method for storing and draining water on the slope of the sponge city basement roof as claimed in claim 1, wherein the construction method comprises the following steps:

the basement roof greening slope (1) is located on the outer side of the top of the ground warehouse (3), and a leveling layer (17) with the thickness of 50mm, a gravel layer (16) with the thickness of 190mm, middle sand (15) with the thickness of 19mm, permeable concrete (14) with the thickness of 200mm and the grain size of 10-15, dry and hard cement mortar (13) with the thickness of 19mm and ceramic permeable bricks (12) with the thickness of 60mm are sequentially paved upwards after the plain soil (18) is tamped.

3. The construction method for storing and draining water on the slope of the sponge city basement roof as claimed in claim 1, wherein the construction method comprises the following steps: the water storage and drainage device (100) further comprises a filter pipe network (21) and an overflow pipe (24), the filter pipe network (21) is arranged on the water storage tank (22), the overflow pipe (24) is arranged on one side, facing the curbstone (8), of the water storage tank (22), the water storage tank (22) is connected to the spray controller (25) through a pipeline near the outer bottom, and the bottom of the spray controller (25) is connected to the booster pump (26).

4. The construction method for storing and draining water on the slope of the basement roof of the sponge city according to claim 3, wherein the construction method comprises the following steps: in the step A2, the infiltration pipe (7) is installed by being inserted into a filter pipe network (21) and extending downwards to a reservoir (22);

when the water level in the reservoir (22) is full, the water flows out through the overflow pipe (24) and permeates into the drain board (19) through plain soil (18), flows to the road edge stone (8) along the drain board (19), and flows out through the bottom lower port pipeline (9) of the road edge stone (8) and is discharged to the roadside ditch (10) to flow away.

5. The construction method for storing and draining water on the slope of the sponge city basement roof as claimed in claim 4, wherein the construction method comprises the following steps: and in drought weather, the spray controller (25) is manually opened, the booster pump (26) is used for boosting pressure, and the planting soil spray pipe (23) is driven to spray irrigation vegetation.

6. The method for constructing slope water storage and drainage of a sponge city basement roof according to claim 1,

the method is characterized in that: the waterproof coiled material (31) on one side of the basement roof greening slope (1) close to the one layer of indoor (4) is additionally provided with a heat insulation board, and the waterproof coiled material (31) is damaged when soil is returned.

7. The construction method for storing and draining water on the slope of the sponge city basement roof as claimed in claim 1, wherein the construction method comprises the following steps: the infiltration pipes (7) are evenly distributed along the bottom of the parapet (6) at the top, the distance between the infiltration pipes is 2000mm, and the infiltration pipes (7) of each section of basement roof greening slope (1) are converged into one pipeline and then are discharged into the water reservoir (22).

8. The construction method for storing and draining water on the slope of the sponge city basement roof as claimed in claim 4, wherein the construction method comprises the following steps: the reservoir (22) is divided into different areas according to different basement roof greening slopes (1), the volume of each unit is (2000-2190 mm) multiplied by 2000mm multiplied by 1200mm, the effective water storage capacity of the unit is 3.3-4.3 cubic meters, and the reservoir (22) is internally paved with a high impact modified polypropylene raw material.