阅读说明：本技术 一种丘陵地区地下水分级拦蓄供水系统 (Water supply system is held in grades to hilly area groundwater ) 是由 史婷婷 黄琨 王宁涛 王清 李梦茹 姜华 刘亚磊 周丹坤 谭建民 于 2021-07-26 设计创作，主要内容包括：本发明涉及一种丘陵地区地下水分级拦蓄供水系统,包括设置于松散堆积物上的拦储水坝A,所述拦储水坝A内设置有第一储水仓,所述拦储水坝A与所述第一储水仓之间具有渗流通道,所述松散堆积物中的地下水经所述拦储水坝A拦截后,经所述渗流通道流入所述第一储水仓中；所述松散堆积物上且位于所述拦储水坝A下游还设置有至少一个拦储水坝B,所述拦储水坝B内设置有第二储水仓。本发明能拦蓄大量的地下水并加以利用。(The invention relates to a graded storage water supply system for underground water in hilly areas, which comprises a storage dam A arranged on loose accumulation, wherein a first water storage bin is arranged in the storage dam A, a seepage channel is arranged between the storage dam A and the first water storage bin, and the underground water in the loose accumulation flows into the first water storage bin through the seepage channel after being intercepted by the storage dam A; at least one blocking and storing dam B is further arranged on the loose accumulation and at the downstream of the blocking and storing dam A, and a second water storage bin is arranged in the blocking and storing dam B. The invention can capture and utilize a large amount of underground water.)

1. The utility model provides a hilly area groundwater is water supply system that impounds in grades which characterized in that: the device comprises a blocking storage dam A (3) arranged on loose accumulation (2), wherein a first water storage bin (4) is arranged in the blocking storage dam A (3), a seepage channel is arranged between the blocking storage dam A (3) and the first water storage bin (4), and underground water in the loose accumulation (2) flows into the first water storage bin (4) through the seepage channel after being intercepted by the blocking storage dam A (3);

at least one blocking and storing dam B (7) is further arranged on the loose accumulation (2) and at the downstream of the blocking and storing dam A (3), and a second water storage bin (10) is arranged in the blocking and storing dam B (7).

2. The hilly area ground water staged impoundment water supply system of claim 1, wherein: the storage dam A (3) and the storage dam B (7) both pass through the loose pile (2) and extend into the dense regolith (1).

3. The hilly area ground water staged impoundment water supply system of claim 1, wherein: calculating the long-term groundwater seepage amount of the region according to the area and the thickness of the loose accumulation (2) at the upstream of the retaining dam A (3), and determining the width of the retaining dam A (3) according to the groundwater seepage amount, wherein the calculation formula of the groundwater seepage amount is as follows: q ═ S × H × K;

wherein Q is the underground seepage quantity, S is the underground water seepage field area, H is the average thickness of the loose deposit, and K is the water content of the loose deposit.

4. The hilly area ground water staged impoundment water supply system of claim 1, wherein: determining the height of the impounding dam A (3) according to the topographic relief of the upstream of the impounding dam A (3);

the height of the impounding dam B (7) is not higher than the horizontal plane of the impounding dam A (3).

5. The staged impounded water supply system for groundwater in hilly areas according to any one of claims 1 to 4, wherein: and multiple layers of filter cloth (5) and filter screen interlayer structures (6) are arranged in the wall bodies of the blocking and storing dam A (3) and the blocking and storing dam B (7), and underground water is filtered by the filter cloth (5) and the filter screen interlayer structures (6) and then seeps into corresponding water storage bins.

6. The hilly area ground water staged impoundment water supply system of claim 5, wherein: a water storage pipeline (8) is installed between the first water storage bin (4) and the second water storage bin (10), and the water storage pipeline (8) is connected with a water pumping device through a water conduit (9).

7. The hilly area ground water staged impoundment water supply system of claim 5, wherein: and automatic water level monitoring devices are installed in the first water storage bin (4) and the second water storage bin (10).

8. The hilly area ground water staged impoundment water supply system of claim 5, wherein: the seepage channel is close to the bottom of the dam A (3), and comprises a plurality of seepage pipes, and the diameters of the seepage pipes are 4 cm-6 cm.

9. The hilly area ground water staged impoundment water supply system of claim 8, wherein: and an overflow pipe is arranged on the upper part of the blocking and storing dam A (3) and positioned outside the blocking and storing dam A (3), the diameter of the overflow pipe is 4-6 cm, and the overflow pipe is used for guiding redundant stored water in the first water storage bin (4) to the downstream.

10. The hilly area ground water staged impoundment water supply system of claim 9, wherein: and the left side wall, the right side wall, the upper wall and the lower wall of the retaining dam A (3) and the retaining dam B (7) are all solid sealing structures.

Technical Field

The invention relates to a water retaining and accumulating system, in particular to a graded water retaining and supplying system for underground water in a hilly area.

Background

The rainfall in the southern area is abundant and mostly concentrated in 5-8 months, and aims at the problems that rainfall in the southern metamorphic rock low-hilly area is difficult to infiltrate and is mostly drained by surface runoff, and meanwhile, due to the limitation of topography, the low-hilly area cannot build a large-scale reservoir to block the rainfall and surface water, so that the water resources in the vast metamorphic rock low-hilly area are lack, the production and life are seriously influenced, and the economic development is restricted. The rainfall in the low mountain and hilly area of metamorphic rock only penetrates into the weathered layer or loose layer of residual slope, the thickness of the rainfall is more than 10 meters, the water storage space is huge, the rainfall is mostly pore underground water, and the infiltration speed is slow. Rainfall in south is mostly concentrated rainfall, infiltration is difficult in metamorphic rock areas, surface runoff is mostly discharged, a small pond is formed only in a relatively low-lying position, most of the pond is dead water, the water quality is poor, and the water quantity is small; due to the fact that the weathered layer of metamorphic rock is small in thickness and poor in water-rich property, the metamorphic rock is difficult to collect and utilize and cannot be used by residents in low mountain and hilly areas lack of water, and the local drinking water safety is seriously threatened.

Disclosure of Invention

The invention aims to provide a graded storage water supply system for underground water in hilly areas, which is used for storing and utilizing a large amount of underground water.

The technical scheme for solving the technical problems is as follows: a graded storage water supply system for underground water in hilly areas comprises a retaining dam A arranged on loose accumulation, wherein a first water storage bin is arranged in the retaining dam A, a seepage channel is arranged between the retaining dam A and the first water storage bin, and the underground water in the loose accumulation flows into the first water storage bin through the seepage channel after being intercepted by the retaining dam A;

at least one blocking and storing dam B is further arranged on the loose accumulation and at the downstream of the blocking and storing dam A, and a second water storage bin is arranged in the blocking and storing dam B.

The invention has the beneficial effects that: the slowly seeped underground water in the loose accumulation is collected and stored in the water storage bin by arranging a multi-stage blocking dam so as to be convenient for further utilization of water resources; meanwhile, a large amount of rainfall permeates into the loose accumulation after being intercepted by the water blocking and storing dam, so that the loose accumulation can be effectively utilized to store a large amount of water resources, and further, the direct loss of water is reduced.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, both the impounding dam a and the impounding dam B pass through the loose pile and extend into the dense regolith.

The beneficial effect of adopting above-mentioned further scheme is that the seepage water is mainly stored in loose accumulation, and the dam that blocks storage extends to in the tight windy layer, strengthens the interception to groundwater, reduces and runs off.

Further, calculating the long-term groundwater seepage amount of the area according to the area and the thickness of the loose accumulation on the upstream of the retaining dam A, and determining the width of the retaining dam A according to the groundwater seepage amount, wherein the calculation formula of the groundwater seepage amount is as follows: q ═ S × H × K;

wherein Q is the underground seepage quantity, S is the underground water seepage field area, H is the average thickness of the loose deposit, and K is the water content of the loose deposit.

The method has the advantages that the width of the dam is determined through accurate calculation, and the purpose of adjusting the conditions according to the ground is achieved.

Further, determining the height of the dam A according to the relief of the terrain upstream of the dam A;

the height of the impounding dam B is not higher than the horizontal plane of the impounding dam A.

The method has the advantages that the height of the dam is determined through accurate calculation, and the purpose of adjusting the conditions according to the ground is achieved.

Furthermore, a plurality of layers of filter cloth and filter screen interlayer structures are arranged in the wall bodies of the blocking and storing dam A and the blocking and storing dam B, and underground water is filtered by the filter cloth and the filter screen interlayer structures and then seeps into the corresponding water storage bins.

The beneficial effect of adopting above-mentioned further scheme is that multilayer filter cloth and filter screen structure filter the groundwater of seepage flow, do benefit to next utilization to groundwater.

Further, a water storage pipeline is installed between the first water storage bin and the second water storage bin and is connected with a water pumping device through a water conduit.

Adopt above-mentioned further scheme's beneficial effect be that the water storage pipeline connects and stores some water resource with individual water storage storehouse, and rethread pumping device is with the apotheca extraction, can supply the resident to produce life usefulness, improves the utilization ratio of water resource.

Further, all install water level automatic monitoring device in first reservoir storehouse with in the second reservoir storehouse.

Adopt above-mentioned further scheme's beneficial effect be water level automatic monitoring device can monitor the water level in the reservoir chamber often, be convenient for control and allotment water resource.

Furthermore, the seepage channel is close to the bottom of the water blocking and storing dam A, the seepage channel comprises a plurality of seepage pipes, and the diameters of the seepage pipes are 4 cm-6 cm.

Adopt above-mentioned further scheme's beneficial effect be convenient for collect the groundwater flow to the first reservoir storehouse after filtering with the seepage flow pipe.

Furthermore, an overflow pipe is arranged on the upper portion of the blocking and storing dam A and on the outer side of the blocking and storing dam A, the diameter of the overflow pipe is 4 cm-6 cm, and the overflow pipe is used for guiding redundant water stored in the first water storage bin to the downstream.

The beneficial effect of adopting the above-mentioned further scheme is that the overflow pipe that is located the upper portion of dam A guides the water storage that is higher than the design water level in first reservoir out, overflows to the low reaches and makes the first reservoir constantly maintain stable water storage.

Further, the left side wall, the right side wall, the upper wall and the lower wall of the retaining and storing dam A and the retaining and storing dam B are all solid sealing structures.

The further scheme has the advantages that the underground water stored by the water storage dam A and the water storage dam B can only flow in from the inner side and flow out from the outer side of the water storage dam, and more underground water can be guided to the water storage bin.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

the list of components is as follows:

1. compacting a weathered layer; 2. loose bulk material; 3. a storage dam A; 4. a first water storage bin; 5. filtering cloth; 6. the filter screen is of a mutual layer structure; 7. a storage dam B; 8. a water storage pipeline; 9. a water conduit; 10. a second water storage bin.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The application establishes a variational rock area rainfall-surface water-underground water migration conversion rule and an underground water flow system theory, selects the southern variational rock low hilly area rainfall which is difficult to infiltrate and mostly excretes by surface runoff, and simultaneously, the low hilly area can not build a large-scale reservoir for retaining the rainfall and the surface water due to terrain limitation, so that more than 80% of the rainfall directly passes through the surface water and can not be used for drinking, and water resources are filtered, precipitated and purified by loose deposits 2.

As shown in fig. 1, a graded storage water supply system for groundwater in hilly areas comprises a storage dam A3 arranged on a loose deposit 2, the storage dam A3 is generally a soft slope valley in a metamorphic rock mountain area, a first water storage bin 4 is arranged in the storage dam A3, a seepage channel is arranged between the storage dam A3 and the first water storage bin 4 and is close to the bottom of the storage dam A3, in some embodiments, the seepage channel comprises a plurality of seepage pipes, the seepage pipes are communicated with the loose deposit 2 on the upstream of the storage dam A3 and the first water storage bin 4, and the diameter of the seepage pipes is 4 cm-6 cm. The underground water in the loose accumulation 2 is intercepted by the blocking dam A3 and flows into the first water storage bin 4 through the seepage channel. After the groundwater is stored in the first water storage bin 4, the groundwater can be further treated according to actual conditions. In another embodiment, an overflow pipe is arranged at the upper part of the storage dam A3 and outside the storage dam A3, the diameter of the overflow pipe is 4 cm-6 cm, and the overflow pipe is used for guiding the redundant water stored in the first water storage bin 4 to the downstream. The installation density of the seepage pipe and the overflow pipe is set according to actual conditions, and the installation density of the seepage pipe is generally greater than that of the overflow pipe.

At least one storage dam B7 is arranged on the loose accumulation 2 and at the downstream of the storage dam A3, the number of the storage dams B7 is set according to the actual situation of hilly areas, areas with relatively large fluctuation and thin loose accumulation thickness are selected from the upstream to the downstream of a valley, the storage dam A3 and a plurality of storage dams B7 are respectively built, and the storage dam A3 and the storage dam B7 are identical in structure. A second water storage bin 10 is arranged in the water storage dam B7, and similarly, the first water storage bin 4 and the second water storage bin 10 can adopt the same structure. The left side wall, the right side wall, the upper wall and the lower wall of the blocking and storing dam A3 and the blocking and storing dam B7 are all solid sealing structures. The underground water stored by the blocking dam A and the blocking dam B can only flow into the water storage bin from the inner side of the blocking dam, and the redundant water stored in the water storage bin is guided to the downstream through the overflow pipe on the outer side, so that more underground water can be guided to the water storage bin conveniently. In another embodiment, the top of the retaining dam A3 and the retaining dam B7 can be made into a movable sealing structure, so that the subsequent maintenance and cleaning are convenient.

Both the impounding dam A3 and the impounding dam B7 pass through the loose heap 2 and extend into the dense regolith 1. The storage dam A3 and the storage dam B7 extend into the compact weathered layer 1, so that the structural strength of the storage dam can be enhanced, and the rapid seepage of rainwater into the loose accumulation layer 2 can be further enhanced.

And multiple layers of filter cloth 5 and filter screen alternate layer structures 6 are arranged in the wall bodies of the blocking and storing dam A3 and the blocking and storing dam B7, and underground water is filtered by the filter cloth 5 and the filter screen alternate layer structures 6 and then seeps into the corresponding water storage bins. The filter cloth 5 and the filter screen interlayer structure 6 can effectively filter part of impurities in the underground water, so that the underground water can be simply purified.

In another embodiment, after the filtering devices in the water blocking dam A3 and the water blocking dam B7 are arranged, a water storage pipeline 8 which can be directly and properly paved in a water storage bin is selected, the water storage pipeline 8 needs to be processed into a flower tube, and the filtering device with the filtering cloth 5 and the filtering net interlayer structure 6 is arranged outside the tube body. The two ends of the water storage pipeline 8 are sealed, the water storage pipeline 8 is completely connected at one end by the water conduit 9, the water pumping device starts to pump water from the water storage pipeline at the bottom of the water blocking and storing dam, and the stored water is conveyed to nearby residents along the water conduit laid on the ground surface or is guided to the downstream water blocking and storing dam sequentially in order for the nearby residents to use.

A water storage pipeline 8 is arranged between the first water storage bin 4 and the second water storage bin 10, and the water storage pipeline 8 is connected with a water pumping device through a water conduit 9. The water storage pipeline 8 is used for comprehensively using water in the multistage water blocking and storing dam through the water pumping device, and meanwhile, the water pumping device takes the prior use of the water stored in the underground water downstream water blocking and storing dam as a principle. Namely as follows: if no water is used by residents in the areas of the blocking and storing dam A3 and the blocking and storing dam B7, the water pumping device at the blocking and storing dam B7 needs to preferentially pump water to a water supply pipe for domestic water of local residents, and if the water is enough for the local residents, the water pumping device at the upstream blocking and storing dam A3 does not need to be started for pumping water, and meanwhile, underground water in the upstream blocking and storing dam A3 continuously flows to the downstream blocking and storing dam B7 along the underground water seepage direction and is supplied to the blocking and storing dam B7; if the water quantity is insufficient, the water pumping device at the position of the water blocking dam A3 is opened to pump water, and the water is directly supplied to local residents for use through the water conduit 9.

Automatic water level monitoring devices are installed in the first water storage bin 4 and the second water storage bin 10. When the water level in the downstream water blocking and storing device is lower than the set water level, the upstream water pumping device automatically pumps water to supplement water for the downstream water storing device, the automatic water regulation at the nearest distance is ensured, and the rest excessive water automatically seeps into the downstream water blocking and storing dam from the upstream through the loose accumulation body.

Before the dam A3 is constructed, calculating the long-term groundwater seepage amount of the region according to the area and the thickness of the loose deposit 2 at the upstream of the dam A3, and determining the width of the dam A3 according to the groundwater seepage amount, wherein the calculation formula of the groundwater seepage amount is as follows: q ═ S × H × K;

wherein Q is the underground seepage quantity, S is the underground water seepage field area, H is the average thickness of the loose deposit, and K is the water content of the loose deposit.

And then, determining the height of the storage dam A3 according to the topographic relief of the upstream of the storage dam A3, wherein the height of the storage dam B7 is not higher than the horizontal plane of the storage dam A3, and if a plurality of storage dams B7 need to be built, the height and the width of the storage dams are calculated by adopting the method. The height of the leaked ground surface of the water retaining and storing dam is determined according to the topography of the valley, the water retaining and storing dam can maximally retain the ground surface water to the height of the dam top when the rainfall is abundant, and the retained ground surface water can slowly permeate into the loose accumulation 2 through the ground surface, so that the purpose of converting the retained ground surface water into underground water for storage is achieved, and the problems of difficult drinking and safe drinking of the metamorphic rock low hilly area with abundant rainfall in the south are effectively solved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific 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, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.