CN117926845A - Guide and exhaust device - Google Patents

Abstract

The invention relates to the technical field of drainage, in particular to a drainage device which comprises a drainage layer and a drainage component, wherein the drainage layer is suitable for being arranged below an impermeable lining layer of an impermeable pond, the drainage layer is used for guiding underground water, the drainage component comprises a drainage blind ditch, a drainage flower pipe and a drainage part, the drainage blind ditch is arranged below the drainage layer and is communicated with the drainage layer, the drainage flower pipe is arranged in the drainage blind ditch, one end of the drainage part is communicated with the drainage flower pipe, and the other end of the drainage part is communicated with the inside of the impermeable pond so as to drain underground water in the drainage flower pipe into the impermeable pond.

Description

Guide and exhaust device

Technical Field

The invention relates to the technical field of guide and exhaust, in particular to a guide and exhaust device.

Background

The impermeable water tank is widely applied to the fields of industry, urban sewage treatment and the like, and is used for collecting and temporarily storing percolate or wastewater. In order to avoid diffusion of leachate or wastewater into the surrounding environment, an artificial impermeable lining is typically required for impermeable treatment. When the impermeable pond is positioned in a depression or is provided with impermeable facilities at the downstream, the underground water guide and discharge pipes cannot find proper terrains or positions to be laid along a slope, and underground water cannot be led out in a self-flowing mode through the pipelines, the underground water is mostly guided and discharged into the collecting well in the related technology, and then is discharged in a water pump discharging mode, if water in the collecting well is not discharged in time, the underground water easily forms hydraulic damage to the impermeable lining, so that the impermeable failure is caused, and the reliability of underground water guide and discharge is reduced.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides the drainage device which can automatically drain underground water and improve the reliability of the drainage device.

The drainage guide device of the embodiment of the invention comprises: the drainage guide layer is suitable for being arranged below an impermeable lining layer of the impermeable water tank and is used for guiding underground water; the drainage guide assembly comprises a drainage guide blind ditch, a drainage guide flower pipe and a drainage guide component, wherein the drainage guide blind ditch is arranged below the drainage guide layer and is communicated with the drainage guide layer, the drainage guide flower pipe is arranged in the drainage guide blind ditch, one end of the drainage guide component is communicated with the drainage guide flower pipe, and the other end of the drainage guide component is communicated with the impermeable pond so as to guide underground water in the drainage guide flower pipe to the impermeable pond.

According to the drainage device provided by the embodiment of the invention, the underground water can be automatically discharged, and the reliability of the drainage device is improved.

In some embodiments, the drainage component comprises a flow guide pipe and a flap valve, the flap valve is positioned in the impermeable water tank, one end of the flow guide pipe is connected with the flap valve, and the other end of the flow guide pipe penetrates through the impermeable water tank and is communicated with the drainage flower pipe so as to drain groundwater in the drainage flower pipe into the impermeable water tank.

In some embodiments, the flow guide tube comprises a first straight tube section, a bent tube section and a second straight tube section which are sequentially connected, wherein the first straight tube section extends along the vertical direction, the second straight tube section extends along the first direction, the first direction is orthogonal to the vertical direction, one end of the first straight tube section, which is far away from the bent tube section, is communicated with the guide tube, and one end of the second straight tube section, which is far away from the bent tube section, is communicated with the flap valve.

In some embodiments, the flapper has an open position and a closed position, the flapper being in the open position when the level of groundwater is above the level in the impermeable basin, and the flapper being in the closed position when the level of groundwater is below or equal to the level in the impermeable basin.

In some embodiments, the number of the drainage guide members is plural, and the plurality of the drainage guide members are arranged at intervals in the extending direction of the drainage blind drain.

In some embodiments, the drainage layer comprises a first drainage layer and a second drainage layer, the first drainage layer is arranged at the bottom of the impermeable pond and is communicated with the drainage blind ditch, the second drainage layer is arranged below the pond wall of the impermeable pond, and the second drainage layer is communicated with the first drainage layer so as to drain groundwater below the pond wall into the drainage blind ditch.

In some embodiments, crushed stones are filled in the drainage blind ditch, and the outer contour of the drainage blind ditch on a projection plane parallel to the up-down direction and the first direction is trapezoid.

In some embodiments, an upper end surface of the drainage blind drain is flush with a lower end surface of the first drainage layer.

In some embodiments, the drainage blind ditch comprises a first side wall, a bottom wall and a second side wall which are sequentially connected, wherein the first side wall is adjacent to the second drainage layer, and the first side wall is parallel to the second drainage layer.

In some embodiments, the drainage device further comprises a geotextile wrapped around the outer circumference of the drainage tube.

Drawings

Fig. 1 is a schematic view of an impermeable pond according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a drainage device according to an embodiment of the present invention.

Fig. 3 is a schematic view of another view of the drainage device according to the embodiment of the present invention.

Fig. 4 is an enlarged schematic view at B in fig. 3.

Reference numerals:

A seepage-prevention dam 100, a seepage-prevention pool 200, a seepage-prevention liner 300, a geotextile layer 400,

A conducting layer 1, a first conducting layer 11, a second conducting layer 12,

A drainage guide assembly 2, a drainage blind drain 21, a first side wall 211, a bottom wall 212, a second side wall 213,

A guide-exhaust flower pipe 22, a guide-exhaust member 23,

The draft tube 231, the first straight tube section 2311, the bent tube section 2312, the second straight tube section 2313,

Flap 232, rubble 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

The drainage device comprises a drainage layer 1 and a drainage assembly 2. The drainage layer 1 is adapted to be positioned under the impermeable lining 300 of the impermeable pond 200, the drainage layer 1 being adapted to guide groundwater. The drainage assembly 2 comprises a drainage blind ditch 21, a drainage flower pipe 22 and a drainage component 23, wherein the drainage blind ditch 21 is arranged below the drainage layer 1 and is communicated with the drainage layer 1, the drainage flower pipe 22 is positioned in the drainage blind ditch 21, one end of the drainage component 23 is communicated with the drainage flower pipe 22, and the other end of the drainage component 23 is communicated with the impermeable pond 200 so as to drain groundwater in the drainage flower pipe 22 into the impermeable pond 200.

It should be noted that, the impermeable pond 200 includes an impermeable lining layer 300 and a geotextile layer 400, and the geotextile layer 400 is disposed above the impermeable lining layer 300. When the infiltration prevention basin 200 is located in a depression or downstream there is a watertight facility, wherein the watertight facility may be an infiltration prevention dam 100 or other type of vertical infiltration prevention structure, characterized in that the structure is provided with an infiltration prevention layer, and is watertight on both sides. The method of building the underground water collecting well outside the water pool to lead out the underground water requires large excavation of buried drainage pipes and construction of the collecting well, is complex in construction, and also requires personnel to manage the start and stop of the water pump after the impermeable water pool 200 is put into use. Once the groundwater in the collection well is not drained in time, the impermeable liner 300 of the impermeable pond 200 may be damaged by the water pressure created by the elevated groundwater, resulting in a failure of the impermeable pond 200 to leak water, thereby contaminating the groundwater with water in the impermeable pond 200.

Specifically, as shown in fig. 1-3, both the drainage layer 1 and the drainage assembly 2 are positioned below the impermeable lining 300, and the drainage layer 1 is used to drain groundwater into the drainage assembly 2. The drainage blind ditch 21 is arranged below the drainage layer 1, the drainage flower pipe 22 is arranged in the drainage blind ditch 21, and the drainage flower pipe 22 is positioned at the middle position of the drainage blind ditch 21 in the left-right direction. The lower end of the guide-exhaust part 23 is communicated with the guide-exhaust flower pipe 22, and the upper end of the guide-exhaust part 23 passes through the impermeable pond 200 and extends into the impermeable pond 200 so as to guide and exhaust the groundwater in the guide-exhaust flower pipe 22 into the impermeable pond 200.

It can be appreciated that, in this embodiment, by arranging the drainage flower pipe 22 in the drainage blind ditch 21, the drainage flower pipe 22 has a larger aperture and a smooth flow channel, which can prevent the blockage of sundries and silt, effectively improve the drainage efficiency, increase the drainage amount, reduce the maintenance cost, and thereby improve the drainage performance of the drainage blind ditch 21.

For example, the guide-exhaust flower pipe 22 is an HDPE pipe with specification DN250, holes are formed in the pipe wall of the guide-exhaust flower pipe 22 to prevent soil from entering the guide-exhaust flower pipe 22, the aperture is about 15mm, and the end is closed. The aperture of the drainage pattern 22 typically ranges from a few millimeters to tens of millimeters depending on the groundwater flow and soil conditions. The aperture of the hole in the drainage tube 22 is not particularly limited in this embodiment, as long as the permeability and drainage effect of the drainage tube 22 can be ensured, and groundwater can be effectively flowed into the drainage tube 22 and discharged.

The calculation of the groundwater quantity can be determined according to the groundwater hydraulic characteristics of the position of the seepage-proofing pool and different conditions of different burial conditions. Correspondingly, the pipe diameter of the guide and discharge flower pipe is calculated and determined according to the groundwater amount, the outer diameter of the dry pipe is not smaller than 250mm, and the outer diameter of the branch pipe is not smaller than 200mm. The pipe diameter of the guide and discharge pipe can be calculated according to a Manning formula, the flow rate of the guide and discharge pipe is estimated according to the water quantity of underground water, and the pipe diameter of the guide and discharge pipe under the flow rate is determined by further calculation according to the Manning formula. The Manning formula is Q=1/n×r _h ^2/3×i^1/2 ×A, wherein Q is pipeline diameter flow, the unit is m ³/s, n is Manning roughness coefficient, HDPE pipe n is about 0.011, r _h is hydraulic radius, r _h =d/4, the unit is m, i is pipeline slope of the guide and exhaust pipe, A is pipeline inner sectional area, the unit is m ², d is pipeline inner diameter, and the unit is m.

According to the drainage device disclosed by the embodiment of the invention, the underground water is guided into the drainage flower pipe 22 in the drainage blind ditch 21 through the drainage layer 1, and then the drainage flower pipe 22 is communicated with the impermeable pond 200 through the drainage component 23, so that the underground water in the drainage flower pipe 22 is discharged into the impermeable pond 200, the bulge or even damage of the impermeable lining 300 caused by the rise of the water level of the underground water is avoided, the water level of the underground water is controlled below the height of the impermeable lining 300, the underground water is prevented from damaging the impermeable lining 300, and the reliability of the drainage device is improved.

Compared with the mode that the collecting well is required to be excavated to collect underground water in the related art, the water in the guide and discharge flower pipe 22 is guided and discharged into the impermeable pond 200 through the guide and discharge component 23, so that the water level of the underground water is always in a safe range, the water pressure of the underground water is ensured not to influence the impermeable lining layer 300, the impermeable performance of the impermeable lining layer 300 is further ensured, the construction of the guide and discharge device of the embodiment is simple, the collecting well is not required to be built by large excavation, external power supply is not required in the operation process of the guide and discharge component 23, and the operation cost of the guide and discharge device is reduced.

In some embodiments, the drainage component 23 includes a drainage tube 231 and a flap 232, the flap 232 is positioned in the impermeable pond 200, one end of the drainage tube 231 is connected to the flap 232, and the other end of the drainage tube 231 is connected to the drainage pattern tube 22 through the impermeable pond 200 to drain groundwater in the drainage pattern tube 22 into the impermeable pond 200.

Specifically, as shown in fig. 2 and 3, the upper end of the flow guide pipe 231 is connected with the flap 232, the lower end of the flow guide pipe 231 passes through the impermeable pond 200 and is connected with the drainage flower pipe 22 so as to guide and drain the groundwater in the drainage flower pipe 22 into the impermeable pond 200, the flap 232 and the drainage flower pipe 22 are communicated through the arrangement of the flow guide pipe 231, so that the groundwater is conveniently introduced into the impermeable pond 200, and the flap 232 is arranged in a unidirectional water flow manner, so that the water in the impermeable pond 200 can be prevented from flowing into the groundwater.

Since the guide pipe 22 is used as a main pipe to bear larger flow and pressure, the guide pipe 231 is used as a branch pipe to distribute water to each outlet, the flow and pressure are smaller, the arrangement that the pipe diameter of the guide pipe 22 is larger than that of the guide pipe 231 is more reasonable, the proportional relationship between the pipe diameters of the guide pipe 22 and the guide pipe 231 has great influence on the guide effect of the guide device, if the pipe diameters of the guide pipe 22 and/or the guide pipe 231 are too small, the flow can be damaged, the water flow speed can be increased, larger resistance can be generated, the normal operation of the guide device can be influenced, and if the pipe diameters of the guide pipe 22 and/or the guide pipe 231 are too large, waste and unnecessary cost increase can be caused. In setting the pipe diameters of the guide and exhaust pipe 22 and/or the guide pipe 231, the factors in the aspects of flow requirement, hydraulic condition, economy and the like need to be comprehensively considered to achieve the best balance of the system effect, and the pipe diameters of the guide and exhaust pipe 22 and the guide pipe 231 are not specifically limited in this embodiment.

Optionally, the connection between the diversion pipe 231 and the impermeable lining 300 adopts a welding connection mode, so that the impermeable lining 300 and the diversion pipe 231 are welded into a whole, the leachate or wastewater in the impermeable pond 200 is prevented from penetrating into the ground through the membrane penetrating part at the connection between the diversion pipe 231 and the impermeable lining 300, and the connection tightness of the diversion pipe 231 and the impermeable lining 300 is ensured. For example, a connecting hole may be first reserved on the impermeable lining 300, a boot-shaped portion may be welded at the connecting hole, the guide pipe 231 penetrates through the boot-shaped portion and is welded with the boot-shaped portion, and the height of the boot-shaped portion is smaller than the extension length of the guide pipe 231 extending toward the impermeable lining 300.

For example, in the present embodiment, the pipe diameter of the guide and exhaust flower pipe 22 is DN250, the guide pipe 231 is an HDPE pipe, the pipe diameter of the guide pipe 231 is DN200, and the specifications of the flap 232 are the same as those of the guide pipe 231. The guide flower pipe 22 and the guide pipe 231 can be connected in a welding mode, so that the connection stability between the guide flower pipe 22 and the guide pipe 231 is ensured.

For example, flap 232 may also be configured as a one-way valve or other valve.

In some embodiments, the flow guide 231 includes a first straight pipe section 2311, a curved pipe section 2312, and a second straight pipe section 2313 connected in sequence, the first straight pipe section 2311 extending in an up-down direction, the second straight pipe section 2313 extending in a first direction (a left-right direction as viewed in fig. 3), the first direction being orthogonal to the up-down direction, an end of the first straight pipe section 2311 remote from the curved pipe section 2312 communicating with the flow guide tube 22, and an end of the second straight pipe section 2313 remote from the curved pipe section 2312 communicating with the flap valve 232.

Specifically, as shown in fig. 4, the second straight pipe section 2313 extends in the left-right direction, the lower end of the first straight pipe section 2311 is communicated with the drainage pipe 22, the upper end of the first straight pipe section 2311 is communicated with the lower end of the curved pipe section 2312, the upper end of the curved pipe section 2312 is communicated with the right end of the first straight pipe section 2311, the left end of the first straight pipe section 2311 is connected with the flap valve 232, and the arrangement of the curved pipe section 2312 facilitates changing the flow direction of groundwater and improves the drainage efficiency of the drainage component 23.

For example, the guide pipe 231 and the flap valve 232 are in flange connection, and the detachable connection is convenient for subsequent maintenance of the flap valve 232.

In some embodiments, flapper 232 has an open position and a closed position, flapper 232 being in the open position when the level of groundwater is above the level of water within impermeable basin 200 and flapper 232 being in the closed position when the level of groundwater is below or equal to the level of water within impermeable basin 200.

Specifically, this embodiment through the setting of flap valve 232, can realize the automatic opening and closing of flap valve 232, flap valve 232's initial position is the closed position, when groundwater's water level is higher than the water level of prevention of seepage pond 200, utilizes groundwater pressure to push up flap valve 232 valve plate, flap valve 232 automatic opening, and groundwater is discharged into prevention of seepage pond 200 from the below of prevention of seepage lining 300, reduces the water level of groundwater, avoids groundwater elevation to destroy prevention of seepage lining 300. When the water level of the groundwater is lower than or equal to the water level of the anti-seepage pool 200, the flap valve 232 is automatically closed, the groundwater self-water pressure is utilized, the groundwater drainage mode without additionally increasing drainage power is not needed, manual control operation is not needed, the water level of the groundwater is always maintained in the safe water level of the anti-seepage pool 200, the maintenance cost is reduced, and the drainage efficiency is improved.

Further, the flap valve 232 is used for one-way drainage, has single flow direction and tight structure, avoids the risk that water in the anti-seepage water tank 200 flows to underground in the reverse direction, improves the safety and reliability of the drainage guiding device, does not need external force control when the flap valve 232 is opened and closed, is simple to manage, can guide and drain underground water into the anti-seepage water tank 200 in time, and simultaneously avoids the water in the anti-seepage water tank 200 from diffusing to the underground.

It should be understood that the present embodiment is not limited to the specific structure of the flap valve, for example, a check valve may be further provided, so long as the structure that can realize unidirectional circulation of the groundwater into the impermeable reservoir 200 falls within the protection scope of the present embodiment.

In some embodiments, the number of the drainage members 23 is plural, and the plurality of drainage members 23 are arranged at intervals in the extending direction of the drainage blind drain 21.

Specifically, as shown in fig. 2 and 3, the arrangement of the plurality of drainage components 23 can improve the smooth flow guiding process of the groundwater into the impermeable pond 200, effectively avoid that the groundwater can be smoothly drained into the impermeable pond 200 when a certain drainage component 23 or a drainage flower pipe 22 has sludge or a certain drainage component 23 fails, and improve the reliability of the drainage device.

For example, the minimum distance between two adjacent drainage members 23 along the extending direction of the drainage blind drain 21 is 2 meters, ensuring stable drainage of the drainage members 23.

In some embodiments, the drainage layer 1 includes a first drainage layer 11 and a second drainage layer 12, the first drainage layer 11 is disposed at the bottom of the impermeable pond 200 and is in communication with the drainage blind drain 21, the second drainage layer 12 is disposed below the wall of the impermeable pond 200, and the second drainage layer 12 is in communication with the first drainage layer 11 to drain groundwater below the wall into the drainage blind drain 21.

Specifically, as shown in fig. 2, the first drainage layer 11 guides and drains the groundwater at the bottom of the tank, and the second drainage layer 12 guides and drains the groundwater below the tank wall, and by the arrangement of the first drainage layer 11 and the second drainage layer 12, the drainage efficiency is improved.

In some embodiments, the crushed stone 3 is filled in the guide blind ditch 21, and the outer contour of the guide blind ditch 21 on a projection plane parallel to the up-down direction and the first direction is trapezoid.

Specifically, as shown in fig. 2, the blind drain 21 may be filled with crushed stone 3, or coarse particles such as crushed stone 3 and gravel to form the blind drain 21. The drainage blind ditch 21 is arranged in a trapezoid shape, so that the first drainage layer 11 and the second drainage layer 12 are convenient for guiding and draining groundwater into the drainage blind ditch 21.

For example, the number of blind drains 21 is determined according to the actual topography and pool floor space, and a straight type, i.e., a dry pipe, or a branch type, i.e., a dry pipe and a branch pipe, may be used.

In some embodiments, the upper end surface of the drainage blind drain 21 is flush with the lower end surface of the first drainage layer 11, so that the first drainage layer 11 guides the groundwater into the drainage blind drain 21.

In some embodiments, the drainage blind 21 includes a first sidewall 211, a bottom wall 212, and a second sidewall 213 connected in sequence, the first sidewall 211 being adjacent to the second drainage layer 12, the first sidewall 211 being parallel to the second drainage layer 12.

Specifically, as shown in fig. 2, the blind drain 21 has an inverted trapezoid shape, the first side wall 211 is located on the right side of the bottom wall 212, the second side wall 213 is located on the left side of the bottom wall 212, the first side wall 211 is connected to the right end of the bottom wall 212, and the second side wall 213 is connected to the left end of the bottom wall 212.

Optionally, in this embodiment, the included angle between the first side wall 211 and the bottom wall 212 is larger than the included angle between the second side wall 213 and the bottom wall 212, the extension length of the first side wall 211 is larger than the extension length of the second side wall 213, that is, the slope gradient of the first side wall 211 adjacent to the first drainage layer 11 is larger, and the slope gradient of the second side wall 213 adjacent to the second drainage layer 12 is relatively gentle.

For example, the bottom wall 212 of the blind ditch 21 has a dimension of 500mm in the left-right direction, the blind ditch 21 has a dimension of 500mm in the up-down direction, the second side wall 213 has a slope gradient of 1:1, and the first side wall 211 has a slope gradient of 1:1.5.

Optionally, the first drainage layer 11 is a sand cushion layer, and the second drainage layer 12 is a drainage grid.

For example, the first drainage layer 11 is a coarse sand cushion layer with the thickness of 300mm, the impermeable lining layer 300 is arranged above the coarse sand cushion layer, the impermeable lining layer 300 is made of a 1.5mm thick smooth HDPE geomembrane, the geotextile layer 400 is arranged above the impermeable lining layer 300, and the geotextile layer 400 is filament nonwoven geotextile with the thickness of 600g/m ². In the embodiment, the first drainage layer 11 is set to be a coarse sand cushion layer, so that on one hand, a geomembrane can be protected, and the geomembrane is prevented from being damaged by sharp objects; on the other hand, the first drainage layer 11 connects the drainage blind ditch 21 and the second drainage layer 12 into a whole, and plays a role in transition.

For example, the second drainage layer 12 is a drainage grid, a composite geotechnical drainage grid with the thickness of 6mm is adopted, the lower end of the drainage grid is inserted into the coarse sand cushion layer, the impermeable lining layer 300 is arranged above the drainage grid, the impermeable lining layer 300 is a 1.5mm thick smooth-surface HDPE geotechnical film, the geotechnical cloth layer 400 is arranged above the impermeable lining layer 300, and the geotechnical cloth layer 400 is filament nonwoven geotechnical cloth with the thickness of 600g/m ². The composite geotechnical drainage grid with the thickness of 6mm can play a better role in diversion and bearing, and the diversion effect of the second drainage layer 12 is improved.

According to the embodiment of the invention, the first drainage layer 11 and the drainage blind ditch 21 are arranged at the bottom of the impermeable water tank 200, the second drainage layer 12 is arranged below the tank wall of the impermeable water tank 200, the lower end of the second drainage layer 12 is connected with the first drainage layer 11 so as to guide groundwater drained by the second drainage layer 12 into the first drainage layer 11, the drainage blind ditch 21 is arranged below the first drainage layer 11, the drainage flower pipe 22 is arranged in the drainage blind ditch 21 to collect groundwater, the lower end of the drainage pipe 231 is communicated with the drainage flower pipe 22, the upper end of the drainage pipe 231 stretches into the impermeable water tank 200to be communicated with the flap 232, the flap 232 is opened in a one-way mode, and is in a closed position at ordinary times, when the groundwater level is higher than the water level in the impermeable water tank 200, the flap 232 is opened to guide groundwater into the impermeable water tank 200.

In some embodiments, the drainage device further comprises geotextile (not shown) wrapped around the outer circumference of the drainage pattern tube 22.

Specifically, by coating geotextile on the guide-exhaust flowtube 22, the seepage-proofing performance of the guide-exhaust flowtube 22 can be improved.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

It will be appreciated that the above embodiments are exemplary and are not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. A drainage guide device, comprising:

The drainage guide layer is suitable for being arranged below an impermeable lining layer of the impermeable water tank and is used for guiding underground water;

the drainage guide assembly comprises a drainage guide blind ditch, a drainage guide flower pipe and a drainage guide component, wherein the drainage guide blind ditch is arranged below the drainage guide layer and is communicated with the drainage guide layer, the drainage guide flower pipe is arranged in the drainage guide blind ditch, one end of the drainage guide component is communicated with the drainage guide flower pipe, and the other end of the drainage guide component is communicated with the impermeable pond so as to guide underground water in the drainage guide flower pipe to the impermeable pond.

2. The drainage guide of claim 1, wherein the drainage guide comprises a guide tube and a flap valve, the flap valve is located in the impermeable pond, one end of the guide tube is connected with the flap valve, and the other end of the guide tube passes through the impermeable pond and is communicated with the drainage guide tube so as to guide and drain groundwater in the drainage guide tube into the impermeable pond.

3. The drainage guide device according to claim 2, wherein the guide pipe comprises a first straight pipe section, a bent pipe section and a second straight pipe section which are sequentially connected, the first straight pipe section extends in an up-down direction, the second straight pipe section extends in a first direction, the first direction is orthogonal to the up-down direction, one end of the first straight pipe section away from the bent pipe section is communicated with the drainage guide pipe, and one end of the second straight pipe section away from the bent pipe section is communicated with the flap valve.

4. A drainage guide as claimed in claim 3 wherein the flap has an open position and a closed position, the flap being in the open position when the level of groundwater is above the level in the impermeable basin and in the closed position when the level of groundwater is below or equal to the level in the impermeable basin.

5. A drainage device according to claim 3, wherein the number of the drainage members is plural, and the plurality of the drainage members are arranged at intervals in the extending direction of the drainage blind drain.

6. The drainage device of claim 3, wherein the drainage layer comprises a first drainage layer and a second drainage layer, the first drainage layer is arranged at the bottom of the impermeable pond and is communicated with the drainage blind ditch, the second drainage layer is arranged below the pond wall of the impermeable pond, and the second drainage layer is communicated with the first drainage layer to drain groundwater below the pond wall into the drainage blind ditch.

7. The drainage guide of claim 6, wherein the drainage blind drain is filled with crushed stone, and an outer contour of the drainage blind drain on a projection plane parallel to the up-down direction and the first direction is trapezoidal.

8. The drainage guide of claim 7, wherein an upper end surface of the drainage blind drain is flush with a lower end surface of the first drainage layer.

9. The drainage guide of claim 8, wherein the drainage blind drain comprises a first side wall, a bottom wall, and a second side wall connected in sequence, the first side wall being adjacent to the second drainage layer, the first side wall being parallel to the second drainage layer.

10. The drainage guide of claim 1, further comprising geotextile wrapped around the outer circumference of the drainage pattern.