Ecological reservoir for water conservancy and hydropower engineering

Abstract

The utility model provides an ecological reservoir for water conservancy and hydropower engineering, which comprises a reservoir body, and the reservoir body comprises a dry stone protection slope, a coarse sand layer, a natural sodium bentonite waterproof blanket and a plain soil layer which are sequentially arranged from top to bottom; a plurality of parallel water permeable pipes are laid below the bottom wall of the reservoir at intervals, each water permeable pipe is provided with a check valve at intervals, and the lower surface of each water permeable pipe is coated with non-woven geotechnical cloth. The stress on the bottom of the reservoir body is reduced by arranging the water permeable pipe below the reservoir body, and the crack resistance of the reservoir is comprehensively improved by combining with the arrangement of the expansion joints; the ecological reservoir takes the natural footstone as a slope protection, the bentonite waterproof blanket is waterproof, the construction method is simple, the anti-seepage effect is good, and the ecological reservoir is economical, practical, ecological and environment-friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy and hydropower engineering, and specifically relates to an ecological water storage tank used in water conservancy and hydropower engineering. Background Art

[0002] During the construction of water conservancy and hydropower projects, the management staff and construction workers at the construction sites will generate a large amount of domestic sewage in their daily lives. The operation and maintenance staff will also generate domestic sewage. After being treated, the domestic sewage will become reclaimed water, which will be used for greening and watering roads. In winter, it is impossible to green and water roads, so a reservoir needs to be built to facilitate the subsequent use of reclaimed water in the spring of the following year.

[0003] Existing ecological water reservoirs are mainly concrete pools, which have problems such as poor crack resistance, complex construction technology leading to long construction period and high investment. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides an ecological water storage tank for water conservancy and hydropower projects, which can effectively solve the above problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The utility model provides an ecological water reservoir for water conservancy and hydropower engineering, comprising a water reservoir body (13), wherein the water reservoir body (13) comprises a water reservoir bottom wall (13A) and a water reservoir side wall (13B); the water reservoir bottom wall (13A) and the water reservoir side wall (13B) have the same structure, and both comprise a dry stone slope protection (1), a coarse sand layer (2), a natural sodium-based bentonite waterproof blanket (3) and a plain soil layer (4) arranged in sequence from top to bottom; a plurality of parallel permeable pipes (11) are laid at intervals below the water reservoir bottom wall (13A), each of the permeable pipes (11) is installed with a check valve (5) at intervals, and the lower surface of each of the permeable pipes (11) is covered with a non-woven geotextile (12).

[0007] Preferably, the thickness of the dry stone slope protection (1) is 300 mm; the thickness of the coarse sand layer (2) is 100 mm; and the thickness of the plain soil layer (4) is 100 mm.

[0008] Preferably, one end of the check valve (5) is located above the bottom wall (13A) of the water reservoir, and the other end passes through the installation hole of the bottom wall (13A) of the water reservoir and is assembled to the water permeable passage of the water permeable pipe (11).

[0009] Preferably, the side wall (13B) of the water reservoir is an inclined side wall, and the width of the cavity enclosed by the side wall (13B) of the water reservoir gradually increases from bottom to top.

[0010] Preferably, a slope protection top (7) is provided on the top surface of the water reservoir side wall (13B); and a concrete foot guard (9) is installed at the intersection of the water reservoir bottom wall (13A) and the water reservoir side wall (13B).

[0011] Preferably, the position where the natural sodium-based bentonite waterproof blanket (3) contacts the slope protection top (7) is connected and fixed by expansion bolts; the position where the natural sodium-based bentonite waterproof blanket (3) contacts the concrete foot protection (9) is connected and fixed by expansion bolts.

[0012] Preferably, the slope protection top (7) and the concrete foot protection (9) are both provided with expansion joints at a set distance.

[0013] Preferably, a railing (8) is installed above the slope protection top (7) by means of expansion bolts.

[0014] Preferably, a water collection pit (6) is provided near a corner of the water reservoir body (13), and the bottom wall (13A) of the water reservoir slopes toward the water collection pit (6) at a slope ratio of 0.5%.

[0015] Preferably, a first inlet and outlet (10A) is provided on one side of the water tank side wall (13B) of the water tank body (13), and a second inlet and outlet (10B) is provided on the other side.

[0016] The utility model provides an ecological water storage tank for water conservancy and hydropower projects, which has the following advantages:

[0017] The utility model provides an ecological water storage tank for water conservancy and hydropower engineering, which reduces the stress on the bottom of the water storage tank by arranging a permeable pipe under the water storage tank, and combines the arrangement of expansion joints, thereby comprehensively improving the crack resistance of the water storage tank; the ecological water storage tank uses natural foundation stone as slope protection and bentonite waterproof blanket for waterproofing, has a simple construction method and good anti-seepage effect, and is both economical and practical as well as environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the structure of an ecological water storage tank for water conservancy and hydropower projects provided by the utility model;

[0019] Figure 2 The elevation structure diagram of the ecological water storage tank used for water conservancy and hydropower engineering provided by the utility model;

[0020] Figure 3 This is a partial enlarged view of the installation part of the water-permeable pipe provided by the utility model.

[0021] In the figure: 1. dry stone slope protection; 2. coarse sand layer; 3. natural sodium-based bentonite waterproof blanket; 4. plain soil layer; 5. check valve; 6. sump; 7. slope protection top; 8. guardrail; 9. concrete foot guard; 10A, first inlet and outlet; 10B, second inlet and outlet; 11. permeable pipe; 12. non-woven geotextile; 13. reservoir body; 13A, reservoir bottom wall; 13B, reservoir side wall. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 The utility model provides an ecological water reservoir for water conservancy and hydropower engineering, including a water reservoir body 13, the water reservoir body 13 including a water reservoir bottom wall 13A and a water reservoir side wall 13B; a first inlet and outlet 10A is arranged on one side of the water reservoir side wall 13B of the water reservoir body 13, and a second inlet and outlet 10B is arranged on the other side. The first inlet and outlet 10A and the second inlet and outlet 10B are arranged oppositely. The first inlet and outlet 10A and the second inlet and outlet 10B can facilitate management personnel to enter and exit the water reservoir, thereby facilitating maintenance inside the water reservoir.

[0024] The bottom wall 13A of the water reservoir and the side wall 13B of the water reservoir have the same structure, and both include a dry stone slope protection 1, a coarse sand layer 2, a natural sodium-based bentonite waterproofing blanket 3 and a plain soil layer 4 arranged in sequence from top to bottom; as an embodiment, the dry stone slope protection 1 is 300 mm thick; the coarse sand layer 2 is 100 mm thick; and the plain soil layer 4 is 100 mm thick.

[0025] A plurality of parallel permeable pipes 11 are laid at intervals below the bottom wall 13A of the reservoir, and each permeable pipe 11 is installed with a check valve 5 at intervals, for example, a check valve 5 is arranged at intervals of 6-7m to prevent groundwater backflow; the lower surface of each permeable pipe 11 is covered with a non-woven geotextile 12. Figure 3One end of the check valve 5 is located above the bottom wall 13A of the water reservoir, and the other end is assembled to the water permeable passage of the water permeable pipe 11 after passing through the installation hole of the bottom wall 13A of the water reservoir. By laying the water permeable pipe 11 below the bottom wall 13A of the water reservoir, and covering the lower surface of the water permeable pipe 11 with a non-woven geotextile 12, when the groundwater pressure is high, the water is filtered through the non-woven geotextile 12 and infiltrated into the water permeable pipe 11, so that the groundwater is collected through the water permeable pipe 11, the groundwater pressure is reduced, and the high-pressure groundwater is prevented from damaging the water reservoir. The non-woven geotextile 12 is pressed and fixed by the plain soil layer 4, and the installation is simple. By setting the check valve 5, the water in the water reservoir can be prevented from infiltrating into the ground, and at the same time, the penetration pressure and floating effect of the groundwater on the bottom structure of the pool can be reduced.

[0026] In the utility model, the cross-sectional shape of the ecological water reservoir is a trapezoid, and the side wall 13B of the water reservoir is an inclined side wall. The width of the cavity enclosed by the side wall 13B of the water reservoir gradually increases from bottom to top, for example, the slope ratio is 1:2. A slope protection top 7 is provided on the top surface of the side wall 13B of the water reservoir, and the slope protection top 7 is higher than the existing ground to prevent surface runoff from entering the ecological water reservoir; a concrete foot guard 9 is installed at the intersection of the bottom wall 13A of the water reservoir and the side wall 13B of the water reservoir. The concrete foot guard 9 can reinforce and protect the periphery of the pool body, so that the slope is stably supported. The slope protection top 7 can press and fix the upper side of the slope, and at the same time provide stable support for the guardrail 8.

[0027] The position where the natural sodium-based bentonite waterproof blanket 3 contacts the slope protection top 7 is fixed by expansion bolts; the position where the natural sodium-based bentonite waterproof blanket 3 contacts the concrete foot 9 is fixed by expansion bolts. At the same time, HDPE gaskets are provided for compression and waterproof slurry sealing. This method has the advantages of simple and firm installation of the natural sodium-based bentonite waterproof blanket 3.

[0028] Furthermore, expansion joints are provided at set intervals on the top of the slope protection 7 and the concrete foot 9. For example, an expansion joint is provided every 10m, with a thickness of 20mm, and the expansion joints are made of asphalt wood boards. In the utility model, a railing 8 is installed above the top of the slope protection 7 by expansion bolts, for example, a railing with a height of 1.2m. A sump 6 is provided near the corner of the water reservoir body 13, for example, a 1500mmX4500mmX1500mm sump, and the bottom wall 13A of the water reservoir slopes toward the sump 6 with a slope ratio of 0.5%. A water pump can be provided in the sump 6, and the water in the pool body can be pumped out for use by the water pump.

[0029] The working principle of an ecological water storage tank for water conservancy and hydropower projects provided by the utility model is as follows:

[0030] The treated domestic sewage is discharged into the water reservoir through an open pipe. When it is necessary to extract water from the water reservoir, the pump is placed in the sump 6, and then the water in the tank is pumped out for use. An expansion joint is set every 10m on the slope protection top 7 and the concrete footing 9. The expansion joint is made of asphalt wood boards, combined with the setting of permeable pipes 11, to reduce the penetration pressure and floating effect of groundwater on the bottom structure of the tank.

[0031] The utility model provides an ecological water storage tank for water conservancy and hydropower projects, which has the following advantages:

[0032] The utility model provides an ecological water storage tank for water conservancy and hydropower engineering, which reduces the stress on the bottom of the water storage tank by arranging a permeable pipe under the water storage tank, and combines the arrangement of expansion joints, thereby comprehensively improving the crack resistance of the water storage tank; the ecological water storage tank uses natural foundation stone as slope protection and bentonite waterproof blanket for waterproofing, has a simple construction method and good anti-seepage effect, and is both economical and practical as well as environmentally friendly.

[0033] The engineering measures described above are applicable to the current engineering and are only used to illustrate the technical ideas and features of the utility model, but are not limited to the current connection methods, etc. Its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The patent scope of the utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the utility model still fall within the protection scope of the utility model.

Claims

1. An ecological reservoir for water conservancy and hydropower projects, characterized in that: The invention comprises a water reservoir body (13), wherein the water reservoir body (13) comprises a water reservoir bottom wall (13A) and a water reservoir side wall (13B); the water reservoir bottom wall (13A) and the water reservoir side wall (13B) have the same structure, and both comprise a dry stone slope protection (1), a coarse sand layer (2), a natural sodium-based bentonite waterproof blanket (3) and a plain soil layer (4) arranged in sequence from top to bottom; a plurality of parallel permeable pipes (11) are laid at intervals below the water reservoir bottom wall (13A), each of the permeable pipes (11) is installed with a check valve (5) at intervals, and the lower surface of each of the permeable pipes (11) is covered with a non-woven geotextile (12).

2. The ecological water reservoir for water conservancy and hydropower engineering according to claim 1, characterized in that: The thickness of the dry stone slope protection (1) is 300 mm; the thickness of the coarse sand layer (2) is 100 mm; and the thickness of the plain soil layer (4) is 100 mm.

3. The ecological water storage tank for water conservancy and hydropower engineering according to claim 1, characterized in that: One end of the check valve (5) is located above the bottom wall (13A) of the water reservoir, and the other end passes through the installation hole of the bottom wall (13A) of the water reservoir and is assembled into the water permeable passage of the water permeable pipe (11).

4. The ecological water reservoir for water conservancy and hydropower projects according to claim 1, characterized in that: The side wall (13B) of the water reservoir is an inclined side wall, and the width of the cavity enclosed by the side wall (13B) of the water reservoir gradually increases from bottom to top.

5. The ecological water reservoir for water conservancy and hydropower engineering according to claim 1, characterized in that: A slope protection top (7) is arranged on the top surface of the water reservoir side wall (13B); and a concrete foot protection (9) is installed at the intersection of the water reservoir bottom wall (13A) and the water reservoir side wall (13B).

6. The ecological water storage tank for water conservancy and hydropower engineering according to claim 5, characterized in that: The position where the natural sodium-based bentonite waterproof blanket (3) contacts the slope protection top (7) is connected and fixed by expansion bolts; the position where the natural sodium-based bentonite waterproof blanket (3) contacts the concrete foot protection (9) is connected and fixed by expansion bolts.

7. The ecological water storage tank for water conservancy and hydropower engineering according to claim 5, characterized in that: The slope protection top (7) and the concrete foot protection (9) are both provided with expansion joints at set intervals.

8. The ecological water storage tank for water conservancy and hydropower engineering according to claim 5, characterized in that: A handrail (8) is installed above the slope protection top (7) by means of expansion bolts.

9. The ecological water storage tank for water conservancy and hydropower engineering according to claim 1, characterized in that: A water collection pit (6) is arranged near a corner of the water reservoir body (13), and the bottom wall (13A) of the water reservoir slopes toward the water collection pit (6) at a slope ratio of 0.5%.

10. The ecological water storage tank for water conservancy and hydropower engineering according to claim 1, characterized in that: A first inlet and outlet (10A) is arranged on one side of the water reservoir side wall (13B) of the water reservoir body (13), and a second inlet and outlet (10B) is arranged on the other side.

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