Underground space flood regulation and storage structure and flood regulation and storage method

Abstract

The invention relates to the technical field of flood regulation, and discloses an underground space flood regulation and storage structure which comprises a bottom plate, a side wall and a retaining wall, a basement is defined by the side wall and the bottom plate, a fertilizer groove is defined by the retaining wall, the side wall and the bottom plate, and the fertilizer groove is communicated with a municipal pipe network through a water regulation pipeline and is communicated with the basement through an emergency pipeline. Compared with the prior art, on the basis of the design concept of a sponge city, a foundation pit fat groove cavity around a newly-built basement is permanently reserved as a distributed flood storage bin, the basement serves as a supplement, and through the'flat and urgent dual-purpose 'regulation and control mode of'flat and urgent fat groove water storage utilization and emergency flood drainage and room entering', the safety of the basement is improved. A distributed tough network is formed around a daily used underground space in a mode of zero new land increase, and synergistic interaction of urban space resources and flood control and drainage capacities is realized. The invention further provides an underground space flood regulation and storage method which has the advantages that the regulation and storage flow is optimized, and the regulation and storage effect is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flood regulation, in particular to an underground space flood regulation structure and a flood regulation method. BACKGROUND

[0002] With the intensification of global climate change, urban waterlogging problems are becoming increasingly prominent, and flood disasters caused by extreme rain weather pose a serious challenge to urban drainage systems. At the same time, the scale of urban underground space development is expanding, and the sump area formed during the construction and operation of underground structures is traditionally backfilled, which not only occupies resources but also fails to realize its potential value.

[0003] In the current urban flood control system, existing regulation facilities often have insufficient capacity and limited layout, making it difficult to quickly respond to the surge in flood volume in a short period of time. The underground structure sump, as a ring-shaped space surrounding the main structure, has a certain volume and concealment, but has been idle for a long time and has not been involved in the urban flood control regulation system, resulting in waste of space resources. How to use the sump to store water and regulate floods to realize the synergistic effect of urban space resources and flood control and drainage capacity is a technical problem that needs to be solved at present. SUMMARY

[0004] To solve the above technical problems, the purpose of the present application is to provide an underground space flood regulation structure which connects the sump with the municipal pipe network and realizes water storage and flood regulation by using the sump, thereby realizing the effective utilization of underground space.

[0005] Based on this, the present application provides an underground space flood regulation structure, which comprises a bottom plate, a side wall and a retaining wall located below the ground, a plurality of side walls are sequentially connected end to end and fixedly arranged on the top of the bottom plate, and a plurality of side walls and the bottom plate are enclosed to form a basement; a plurality of retaining walls are sequentially connected and fixedly arranged on the top of the bottom plate, at least one retaining wall is arranged at intervals with the side wall, and a plurality of retaining walls, the side wall and the bottom plate are enclosed to form a sump; an emergency pipe connecting the basement and the sump is arranged on the side wall, and a water regulation pipe connecting the sump and the municipal pipe network is arranged on the retaining wall; a manhole is arranged on the top plate of the sump, at least one manhole is arranged, and each manhole is provided with a protective cover.

[0006] In some embodiments of the present application, the retaining wall is provided with four retaining walls, the four retaining walls are arranged at intervals with the side wall, the four retaining walls are sequentially connected end to end and fixedly connected with the bottom plate, and the four retaining walls, the side wall and the bottom plate enclose the sump.

[0007] In some embodiments of the present application, the retaining wall comprises a first wall, a second wall and a third wall, wherein the first wall is arranged apart from the side wall, the second wall and the third wall are connected to the first retaining wall and the side wall respectively, the first wall, the second wall, the third wall and the side wall are fixedly connected to the bottom plate, and the first wall, the second wall, the third wall, the side wall and the bottom plate form the fertilizer groove.

[0008] In some embodiments of the present application, the edge of the basement is provided with a sump, and one end of the emergency pipeline extends into the sump.

[0009] In some embodiments of the present application, the municipal pipe network comprises a sand trap, a municipal sand well and a slurry pump, one end of the water regulating pipeline extends into the sand trap and is connected to the slurry pump, and the sand trap is connected to the municipal sand well through a flap.

[0010] In some embodiments of the present application, the top of the bottom plate is provided with a partition wall, the partition wall is connected to the side wall and the retaining wall respectively, the partition wall is provided with at least two and separates the fertilizer groove into several adjusting chambers, the top plate of each adjusting chamber is provided with the manhole, and each partition wall is provided with a connecting pipeline which connects two adjusting chambers.

[0011] In some embodiments of the present application, the bottom of the protective cover is provided with a protective net.

[0012] In some embodiments of the present application, the bottom of the bottom plate is provided with a drainage layer.

[0013] In some embodiments of the present application, the bottom of the bottom plate is connected to a anti-pulling pile.

[0014] Another object of the present application is to provide a method for flood regulation and storage of underground space, which adopts the underground space flood regulation and storage structure, and comprises the following steps: S1, opening the water regulating pipeline during daily production to discharge water in the municipal pipe network into the fertilizer groove, or discharging water in the fertilizer groove into the municipal pipe network to maintain the water level of the fertilizer groove; S2, opening the manhole regularly during daily production to carry out dredging operation on the fertilizer groove to ensure the smoothness of the water regulating pipeline; S3, opening the water regulating pipeline and the emergency pipeline to discharge water in the fertilizer groove into the basement to carry out emergency water storage in the basement space and realize flood peak shunting when a flood disaster occurs; S4, closing the emergency pipeline after the flood ends to remove the accumulated water in the basement and restore the normal use of the basement and the fertilizer groove; S5, checking and dredging the fertilizer groove and the basement after the flood ends to prepare for the next extreme working condition.

[0015] The underground space flood storage structure provided by the embodiment of the present application has the beneficial effects that compared with the prior art, the underground space flood storage structure comprises a bottom plate, side walls and retaining walls located below the ground, a plurality of side walls are sequentially connected and located on the top of the bottom plate, and the plurality of side walls and the bottom plate form a basement; a plurality of retaining walls are sequentially connected and located on the top of the bottom plate, at least one retaining wall is arranged at intervals with the side walls, and the plurality of retaining walls, the side walls and the bottom plate form a fertilizer groove; the side walls are provided with emergency pipes for connecting the basement and the fertilizer groove, and the retaining walls are provided with water regulating pipes for connecting the fertilizer groove and a municipal pipe network; the top plate of the fertilizer groove is provided with at least one manhole for maintenance, and each manhole is provided with a protective cover. Based on the above structure, the fertilizer groove is connected with the municipal pipe network through the water regulating pipes (including water inlet pipes and water outlet pipes) after waterproof treatment of the fertilizer groove. During daily use, water in the municipal pipe network can be discharged into the fertilizer groove or water in the fertilizer groove can be discharged into the municipal pipe network according to requirements. That is, the original water storage tank or deep tunnel is abandoned, and the water storage function is realized by selecting the fertilizer groove with waterproof capability. At the same time, a plurality of detection devices including a water level sensor are arranged in the fertilizer groove, which can cooperate with the control system to adjust the opening and closing of the water regulating pipes, so as to maintain the reasonable water storage level of the fertilizer groove. The manhole for maintenance provides an opening channel for the connection between the fertilizer groove and the outside, so that the operator can regularly carry out dredging operation on the fertilizer groove to ensure the smoothness of the water regulating pipes. When the city encounters extreme flood disasters, the operator can continuously discharge the accumulated water in the municipal pipe network into the fertilizer groove through all the water regulating pipes to reduce the drainage pressure of the municipal pipe network. When the water storage capacity of the fertilizer groove approaches saturation, the emergency pipes are continuously opened, and the accumulated water in the fertilizer groove is discharged into the basement through the emergency pipes to realize emergency water storage and flood peak diversion. During the emergency drainage process, the monitoring devices can also be used to continuously monitor the water pressure and drainage flow of the basement and the fertilizer groove. After the flood disaster ends, the drainage system of the basement is started to discharge the water in the basement into the fertilizer groove or the municipal pipe network, the basement is reset, the normal use state of the basement and the fertilizer groove is restored, and the fertilizer groove and the basement are dredged and checked through the manhole for maintenance, so as to prepare for the next extreme working condition. In this way, based on the design concept of sponge city, the cavity of the foundation pit fertilizer groove around the newly built basement is permanently reserved as a distributed flood storage tank, and the basement is used as a supplement. Through the "normal fertilizer groove water storage and emergency flood diversion into the room" "normal and emergency dual-purpose" regulation mode, effective flood storage is realized. The technology optimizes the existing engineering process, saves the construction of the traditional water storage tank, breaks through the problems of high cost and long period caused by the setting of deep tunnels and water storage tanks, and forms a distributed resilience network around the underground space in daily use in a low-cost mode with zero additional land, so as to realize the synergistic effect of urban space resources and flood control and drainage capacity.

[0016] In addition, the application also provides a floodwater storage method for underground space, which optimizes the storage process based on the water storage function of the fertilizer groove, forms a distributed resilience network around the basement at a low cost of zero additional land use, and realizes effective storage of floodwater. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Top view of the floodwater storage structure for underground space of some embodiments of the application; Figure 2 Top view of the floodwater storage structure for underground space of some other embodiments of the application, when no partition wall is arranged in the fertilizer groove; Figure 3 Structural schematic diagram of the basement and the fertilizer groove of some other embodiments of the application; Figure 4 A-A sectional schematic diagram in Figure 1 Figure 5 A-A sectional schematic diagram of another embodiment in Figure 1 Figure 6 A-A sectional schematic diagram of another embodiment in Figure 1 Figure 7 B-B sectional schematic diagram in Figure 1 Figure 8 Detailed structural diagram of the manhole of some embodiments of the application.

[0018] In the figure, 1, basement; 2, fertilizer groove; 3, bottom plate; 4, side wall; 5, retaining wall; 6, water collecting well; 7, emergency pipeline; 8, manhole; 9, protective cover; 10, protective net; 11, water regulating pipeline; 12, sand trap; 13, municipal sand well; 14, mud pump; 15, partition wall; 16, connecting pipeline; 17, drainage layer; 18, uplift pile; 19, flap. DETAILED DESCRIPTION

[0019] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the application, but are not used to limit the scope of the application.

[0020] It should be understood that the terms "front", "back" and the like are used in this application to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "front" information can also be referred to as "back" information, and the "back" information can also be referred to as "front" information without departing from the scope of the application.

[0021] As Figures 1 to 8 ​​​​As shown, the embodiment of the present application provides a underground space flood storage structure, which comprises a bottom plate 3, a side wall 4 and a retaining wall 5 below the ground, a plurality of side walls 4 are sequentially connected and fixedly arranged on the top of the bottom plate 3, and the plurality of side walls 4 and the bottom plate 3 form a basement 1; for the retaining wall 5, a plurality of retaining walls 5 are sequentially connected and fixedly arranged on the top of the bottom plate 3, at least one retaining wall 5 is arranged in a spaced manner with the side wall 4, and the plurality of retaining walls 5, the side wall 4 and the bottom plate 3 form a fertilizer groove 2; further, the side wall 4 is provided with an emergency pipeline 7 connecting the basement 1 and the fertilizer groove 2, and the retaining wall 5 is provided with a water regulating pipeline 11 connecting the fertilizer groove 2 and the municipal pipe network; in addition, at least one manhole 8 is arranged on the top plate of the fertilizer groove 2, and a protective cover 9 is arranged on each manhole 8. Based on the above structure, the fertilizer groove 2 is connected with the municipal pipe network through the water regulating pipeline 11 (including the water inlet pipe and the water outlet pipe) after the fertilizer groove 2 is well waterproofed, and the water in the municipal pipe network can be discharged into the fertilizer groove 2 or the water in the fertilizer groove 2 can be discharged to the municipal pipe network according to the demand in daily use. That is, the original water storage tank or deep tunnel is abandoned, and the water storage function is realized by the fertilizer groove 2 with waterproof capability, and a plurality of detection devices including a water level sensor are arranged in the fertilizer groove 2, which can cooperate with the control system to adjust the opening and closing of the water regulating pipeline, so as to maintain the reasonable water storage level of the fertilizer groove 2; the manhole 8 is arranged as a connection opening channel between the fertilizer groove 2 and the outside, so that the operator can regularly carry out dredging operation on the fertilizer groove 2, and ensure the smoothness of the water regulating pipeline 11. When the city encounters extreme flood disaster, the operator continuously discharges the accumulated water in the municipal pipe network into the fertilizer groove 2 through all the water regulating pipelines 11 to reduce the drainage pressure of the municipal pipe network, and when the water storage capacity of the fertilizer groove 2 approaches saturation, the emergency pipeline 7 is continuously opened, the accumulated water in the fertilizer groove 2 is discharged into the basement 1 through the emergency pipeline 7, and the basement 1 is used to realize emergency water storage and shunt flood peak. During the emergency drainage process, the monitoring equipment can also be used to continuously monitor the water pressure, drainage flow and other data of the relevant areas of the basement 1 and the fertilizer groove 2, after the flood disaster ends, the drainage system of the basement 1 is started, the water in the basement 1 is discharged to the fertilizer groove 2 or the municipal pipe network, the basement 1 is reset, the normal use state of the basement 1 and the fertilizer groove 2 is restored, and the fertilizer groove 2 and the basement 1 are dredged and checked through the manhole 8, so as to prepare for the next extreme working condition. In this way, based on the design concept of sponge city, the foundation pit fertilizer groove 2 cavity around the newly built basement 1 is permanently reserved as a distributed flood storage tank, and the basement 1 is used as a supplement, through the "flat and urgent dual-purpose" regulation and control mode of "fertilizer groove storage in normal times and flood into room in emergency", the effective regulation and storage of flood is realized. The technology optimizes the existing engineering process, saves the construction of the traditional water storage tank, breaks through the problems of high cost and long period caused by setting deep tunnel and water storage tank, forms a distributed resilience network in a low-cost mode of zero additional land use, realizes the synergistic effect of urban space resources and flood control and drainage capacity.

[0022] Specifically, as shown in Figure 1 In some embodiments of the present application, four retaining walls 5 are provided, which are spaced apart from the side walls 4 and sequentially connected end to end on the top of the bottom plate 3, and the four retaining walls 5, the side walls 4 and the bottom plate 3 form the fertilizer groove 2.

[0023] Further, as shown in Figure 3 In some embodiments of the present application, three retaining walls 5 are provided, which include a first wall body 501, a second wall body 502 and a third wall body 503, wherein the first wall body 501 is spaced apart from the side wall 4, the second wall body 502 and the third wall body 503 are connected to the first retaining wall 501 and the side wall 4, the first wall body 501, the second wall body 502 and the third wall body 503 are fixedly arranged on the top of the bottom plate 3, and the first wall body 501, the second wall body 502, the third wall body 503, the side wall 4 and the bottom plate 3 form the fertilizer groove 2.

[0024] It can be found that during the construction of the underground structure, the bottom plate 3 structure is first formed based on the excavation of the foundation pit, and the size of the bottom plate 3 determines the size of the entire basement 1 and the fertilizer groove 2. In the present application, the side wall 4 and the retaining wall 5 on the bottom plate 3 are used to form the basement 1 and the fertilizer groove 2. The bottom plate 3 used to enclose the basement 1 and the bottom plate 3 used to enclose the fertilizer groove 2 belong to different regions of the same structure. Here, the condition of the bottom plate 3 is described to better understand the present solution.

[0025] Further, the outlet of the water inlet pipe of the water diversion pipeline 11 (i.e. the water pipe for discharging water in the municipal pipe network into the fertilizer groove 2) is arranged towards the retaining wall 5. Based on the above structure, the water flow during drainage first flushes the retaining wall 5 and then falls into the fertilizer groove 2. The curved water inlet pipe structure with the outlet towards the retaining wall 5 can reduce the noise when the water flow enters the fertilizer groove 2, and reduce the influence on the daily life of the users in the building.

[0026] Optionally, in some embodiments of the present application, the edge of the basement 1 is provided with a sump 6, and one end of the emergency pipeline 7 extends into the sump 6. Based on the above structure, the sump 6 in the basement 1 can collect the accumulated water seeping into the basement 1 during daily use, ensuring the safety of the building and the dryness of the space; further, one end of the emergency pipeline 7 connected to the manure trench 2 extends into the sump 6, and when the manure trench 2 discharges water into the basement 1, the accumulated water entering the basement 1 first enters the sump 6, which can reduce the speed of the accumulated water in the basement 1 and promote the early discharge of the accumulated water in the basement 1, thereby improving the service life of the basement 1. Further, the emergency pipeline 7 has a water inlet pipe and a water outlet pipe, the water inlet pipe of the emergency pipeline 7 is used to discharge water in the manure trench 2 to the sump 6, and the water outlet pipe of the emergency pipeline 7 has one end connected to a water pump in the sump 6, and the other end of the water outlet pipe of the emergency pipeline 7 can be connected to the manure trench 2 or the municipal pipe network, so that the water in the sump 6 can be pumped and discharged into the municipal pipe network during daily use to ensure the normal use of the sump 6.

[0027] Further, as shown in Figures 4 to 6 , for the municipal pipe network of the embodiment of the present application, it includes a sand trap 12, a municipal sand well 13 and a slurry pump 14, one end of the water regulating pipeline 11 extends into the sand trap 12 and is connected to the slurry pump 14, and the sand trap 12 is connected to the municipal sand well 13 through a flap valve 19. Based on the above structure, the sand trap 12 can form a transfer point between the municipal sand well 13 and the manure trench 2, and the water about to enter the municipal sand well 13 or the manure trench 2 is deposited to eliminate the sludge in the water, thereby improving the drainage effect of the entire pipeline; further, the sand trap 12 is provided with the slurry pump 14, and the water outlet pipe (i.e. the pipeline for conveying water from the manure trench 2 to the sand trap 12) of the water regulating pipeline 11 is connected to the slurry pump 14, and the slurry pump 14 is used to continuously suck the slurry in the manure trench 2 to improve the blockage of the manure trench 2 and ensure the long-term normal use of the manure trench 2. Of course, in order to avoid the water in the sand trap 12 flowing back to the sand trap 12 during suction, the water inlet pipe (i.e. the pipeline for conveying water from the sand trap 12 to the manure trench 2) of the water regulating pipeline 11 should be closed during suction by the slurry pump 14 to prevent the water sucked into the sand trap 12 from flowing back to the manure trench 2 and affecting the suction effect. Obviously, in order to further avoid the blockage of the sand trap 12, an inspection manhole should also be provided on the top plate of the top of the sand trap 12 to ensure the timely cleaning of the sand trap 12.

[0028] It can be found that the sand trap 12 is arranged in the ground, which also cannot avoid the occupation of the land, and at this time there may be a problem of excessive land occupation of the entire flood regulation and storage structure infringing the land red line. Therefore, in order to avoid the additional occupation of the sand trap 12, as shown in Figure 5As shown, in the embodiment, the grit chamber 12 is arranged in the fertilizer groove 2 and fixedly connected with the retaining wall 5; further, the retaining wall 5 is provided with a flap valve 19 to realize the connection between the grit chamber and the municipal sand well 13. Based on the above structure, the position adjustment of the grit chamber 12 can further optimize the structural design of the flood storage structure, reduce the occupation of the land, and improve the use effect.

[0029] Optionally, as shown in the drawings, Figure 1 As shown, in some embodiments of the present application, the top of the bottom plate 3 is provided with a partition wall 15 connected with the side wall 4 and the retaining wall 5, the partition wall 15 is provided with at least two and divides the fertilizer groove 2 into several adjusting chambers, the top plate of each adjusting chamber is provided with an inspection manhole 8, and each partition wall 15 is provided with a connecting pipeline 16 communicating the two adjusting chambers.

[0030] Based on the above structure, the space in the fertilizer groove 2 is divided into several independent adjusting chambers by at least two partition walls 15, and the connecting pipeline 16 communicating the two adjusting chambers is arranged in each partition wall 15. When the water in the municipal pipe network enters the fertilizer groove 2 through the water regulating pipeline 11, based on the arrangement of the partition wall 15, it only enters part of the adjusting chambers, that is, part of the fertilizer groove 2 is used for water storage at this time, and the other part remains dry to cope with the gradually increasing flow. The independent adjusting chambers facilitate the operator to use different areas of the adjusting chambers according to the actual flow of the municipal pipe network and the cleaning condition of the adjusting chamber, avoiding the waste of space of the fertilizer groove 2. Since the top plate of each adjusting chamber is provided with an inspection manhole 8, the operator can clean and maintain the adjusting chamber not in the water storage state through the inspection manhole 8, ensuring its normal use in the future. Obviously, various monitoring devices including water level sensors should also be arranged in each adjusting chamber to facilitate the operator to continuously understand the specific conditions in the fertilizer groove 2.

[0031] It needs to be further explained that, regardless of the water regulating pipeline 11, the emergency pipeline 7 or the connecting pipeline 16 of the present application, at least one inlet pipe and at least one outlet pipe should be arranged when setting, the arrangement of the inlet pipe and the outlet pipe can simply and efficiently realize the water inlet and outlet regulation and control, and the arrangement of multiple inlet pipes and multiple outlet pipes can further strengthen the transmission capacity and improve the adjusting effect.

[0032] Optionally, as shown in the drawings, Figure 8As shown, in some embodiments of the present invention, a protective net 10 is provided below the protective cover 9. Obviously, the protective cover 9 is designed to shield the maintenance manhole 8 and prevent personnel from falling in. Therefore, to prevent personnel from accidentally falling in case the protective cover 9 falls or is lost, this application further chooses to provide a protective net 10 below the protective cover 9. The two ends of the protective net are fixed to the side wall 4 and the retaining wall 5 using bolts and traction hooks, effectively preventing substances, including the protective cover 9, from entering the fertilizer tank 2 and the sedimentation tank 12. Furthermore, the protective net 10 of this application is made of polyethylene material, which is inexpensive and easy to promote.

[0033] Furthermore, such as Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the bottom of the base plate 3 is further provided with anti-uplift piles 18 fixedly connected thereto. The anti-uplift piles 18 can counteract the buoyancy of groundwater on the building base plate 3, ensuring structural stability.

[0034] Furthermore, such as Figure 6 As shown, in some embodiments of the present invention, a hydrophobic layer 17 is provided at the bottom of the base plate 3. Generally, the hydrophobic layer 17 is composed of a gravel layer, a drainage pipe, an isolation layer, etc., which can form a drainage channel to guide groundwater or seepage from cracks to the collection well 6, preventing water accumulation or re-seepage. In addition, when cracks or leaks occur in the base plate 3, the hydrophobic layer 17 can also drain the water in time, preventing water from corroding the concrete structure of the building, keeping the base plate 3 dry, and reducing the damage of corrosive substances to the building.

[0035] The embodiments of the present invention also include a flood control method based on an underground space flood control structure, including the following steps: S1, during daily production, the water control pipe 7 is opened to discharge water from the municipal pipe network into the fertilizer tank 2, or the water in the fertilizer tank 2 is discharged into the municipal pipe network to maintain the water level of the fertilizer tank 2. S2. During daily production, open the maintenance manhole 8 regularly to carry out dredging operations on the fertilizer tank 2 and ensure the smooth flow of the water diversion pipeline 7. S3. In the event of extreme flooding, open the water diversion pipe 7 and the emergency pipe 11 to drain the water in the fertilizer tank 2 into the basement 1, and use the space of the basement 1 for emergency water storage to divert the flood peak. S4. After the flood ends, close emergency pipe 7, drain the water from basement 1, and restore normal use of basement 1 and fertilizer tank 2; S5. After the flood ends, inspect and dredge the fertilizer tank 2 and basement 1 to prepare for the next extreme working conditions.

[0036] In summary, the present application provides a underground space flood storage structure, in the construction phase of the underground structure, the traditional backfilling of the fat groove area is waterproofed to form a water storage space, and an emergency pipeline is arranged to improve the connection between the fat groove and the basement, further, the fat groove and the municipal sand well are connected by taking the sand pool as a transfer point, the sand pool is mainly used for depositing the sludge impurities of the municipal pipe network water, and a layered water storage space is reserved for emergency supplement during the construction of the basement. After the completion of the building, by means of the fat groove and the related monitoring equipment of the basement such as the water level sensor, the flow meter, or in combination with the actual drainage and water storage process data, under the waterlogging condition of rainstorm and the like, the fat groove is used for temporary water storage, when the fat groove is close to saturation, the water is introduced into the basement emergency water storage through the emergency pipeline; according to the water storage and drainage conditions of the fat groove and the basement, it is judged whether the corresponding space is used for flood regulation, hierarchical water storage is realized, flood peaks are shunted, and the purposes of improving the urban flood control capacity and saving space resources are achieved.

[0037] In addition, the present application also provides a underground space flood storage method, based on the water storage function of the fat groove, the water storage process is optimized, and a distributed resilience network is formed around the basement in a low-cost mode of zero additional land use, so that the effective storage of floods is realized.

[0038] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. An underground space flood control and storage structure, characterized in that, Includes a base slab (3) located below ground level, side walls (4) and retaining walls (5), multiple side walls (4) are connected end to end and fixedly installed on the top of the base slab (3), and the multiple side walls (4) and the base slab (3) enclose to form a basement (1); Multiple retaining walls (5) are sequentially connected and fixedly installed on the top of the base plate (3). At least one retaining wall (5) is spaced apart from the side wall (4). Multiple retaining walls (5), the side wall (4), and the base plate (3) enclose a trough (2). An emergency pipe (7) connecting the basement (1) and the fertilizer tank (2) is provided on the side wall (4), and a water diversion pipe (11) connecting the fertilizer tank (2) and the municipal pipe network is provided on the retaining wall (5). The top plate of the fertilizer tank (2) is provided with a maintenance manhole (8), and each maintenance manhole (8) is provided with a protective cover (9).

2. The underground space flood control and storage structure according to claim 1, characterized in that, There are four retaining walls (5), and the four retaining walls (5) are respectively spaced apart from the side wall (4). The four retaining walls (5) are connected end to end in sequence and are all fixedly connected to the base plate (3). The four retaining walls (5), the side wall (4) and the base plate (3) enclose the trough (2).

3. The underground space flood control and storage structure according to claim 1, characterized in that, The retaining wall (5) includes a first wall (501), a second wall (502) and a third wall (503), wherein the first wall (501) is spaced apart from the side wall (4), the second wall (502) and the third wall (503) are respectively connected to the first retaining wall (501) and the side wall (4), the first wall (501), the second wall (502), the third wall (503) and the side wall (4) are all fixedly connected to the base plate (3), and the first wall (501), the second wall (502), the third wall (503), the side wall (4) and the base plate (3) enclose the trough (2).

4. The underground space flood control and storage structure according to claim 1, characterized in that, A water collection well (6) is provided at the edge of the basement (1), and one end of the emergency pipe (7) extends into the water collection well (6).

5. The underground space flood control and storage structure according to claim 1, characterized in that, The municipal pipeline network includes a sedimentation tank (12), a municipal sand well (13), and a mud pump (14). One end of the water diversion pipe (7) extends into the sedimentation tank (12) and is connected to the mud pump (14). The sedimentation tank (12) and the municipal sand well (13) are connected by a flap gate.

6. The underground space flood control and storage structure according to claim 1, characterized in that, The top of the base plate (3) is provided with a partition wall (15), which is connected to the side wall (4) and the retaining wall (5) respectively. There are at least two partition walls (15) that divide the trough (2) into several regulating chambers. Each regulating chamber has a maintenance manhole (8) on its top plate, and each partition wall (15) has a connecting pipe (16) that connects the regulating chambers on both sides.

7. The underground space flood control and storage structure according to claim 1, characterized in that, A protective net (10) is provided below the protective cover (9).

8. The underground space flood control and storage structure according to claim 1, characterized in that, The bottom of the base plate (3) is provided with a hydrophobic layer (17).

9. The underground space flood control and storage structure according to claim 1, characterized in that, The bottom of the base plate (3) is connected to an anti-uplift pile (18).

10. A method for flood control and storage in underground space, employing the underground space flood control and storage structure as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. During daily production, open the water diversion pipe to discharge water from the municipal pipe network into the fertilizer tank, or discharge water from the fertilizer tank into the municipal pipe network to maintain the water level of the fertilizer tank. S2. During daily production, the maintenance manhole should be opened regularly to carry out dredging operations on the fertilizer tank and ensure the smooth flow of water diversion pipelines. S3. In the event of a flood, open the water diversion pipeline and emergency pipeline to drain the water in the fertilizer tank into the basement, and use the basement space for emergency water storage to divert the flood peak. S4. After the flood ends, close the emergency pipeline, drain the water from the basement, and restore the basement and fertilizer tank to normal use; S5. After the flood, inspect and dredge the fertilizer tank and basement to prepare for the next extreme working conditions.

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