A semi-buried thermal insulation and anti-seepage water storage tank

Abstract

The present invention discloses a semi-buried thermal insulation and anti-seepage water storage tank, comprising a water storage tank structure system, a thermal insulation system and an anti-seepage system; the water storage tank structure system comprises a cantilever retaining wall and a steel structure roof for forming the side wall of the water storage tank; the thermal insulation system comprises a sandwich panel, which extends from the outer surface of the steel structure roof to the outer surface of the cantilever retaining wall; the anti-seepage system comprises an anti-seepage membrane, which covers the wall and bottom of the water storage tank. The structural design of the water storage tank solves the problems of high construction cost and difficult construction quality control of large water storage tanks, and provides a semi-buried thermal insulation and anti-seepage water storage tank, which can meet the insulation needs of high-cold and high-altitude areas, and solve the problems of high construction cost and difficult construction quality control of large water storage tanks, and the structural safety and economy of the water storage tank can also be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of water reservoirs, and in particular to a semi-buried heat-insulating and anti-seepage water reservoir. Background Art

[0002] High-cold and high-altitude areas specifically refer to areas above 1,500 meters above sea level. In these areas, due to the requirements of construction and municipal functions, reservoirs need to be built. In order to prevent freezing in winter, the reservoirs must take insulation measures, and the reservoirs also need to be waterproof. In order to meet the requirements of thermal insulation and waterproofing of the reservoirs in high-cold and high-altitude areas, the current common reservoir structures include the following two types:

[0003] 1) The fully buried reinforced concrete structure is adopted, and the top plate soil depth is not less than the designed freezing depth. The concrete adopts impermeable concrete to meet the self-waterproofing requirements; the top plate soil depth is not less than the designed freezing depth, that is, the insulation requirements are met by covering the soil to ensure that there is no ice in winter.

[0004] This type of structural water tank adopts a fully buried reinforced concrete structure, with a large amount of excavation and backfilling. When the water tank is high, the foundation pit is deep and support measures need to be taken, which results in high project costs. The on-site concrete pouring project requires a large amount of work and is not suitable for the special environment of high-altitude and cold regions. The construction period is long and the quality of concrete pouring is difficult to control. When the plane size of the water tank is large (length and width are not less than 50m), due to the requirements of waterproofing and thermal insulation, the use of reinforced concrete bottom and top plates has high project costs.

[0005] 2) A semi-buried reinforced concrete structure is used, with part of the main structure exposed above the ground. The concrete is impermeable concrete, which can meet the requirements of self-waterproofing; an insulation layer is set on the outside of the pool wall to meet the insulation requirements and ensure that it does not freeze in winter.

[0006] This type of structural water tank adopts a semi-buried reinforced concrete structure with external insulation added to the outer wall of the tank. The on-site concrete pouring project is large and is not suitable for the special environment of high-altitude and cold regions. The construction period is long and the quality of concrete pouring is difficult to control. When the plane size of the water tank is large (length and width are not less than 50m), due to the requirements of waterproofing and insulation, the cost of using reinforced concrete bottom and top plates is high. Summary of the invention

[0007] The technical problem to be solved by the present invention is to solve the difficult problem of high construction cost and difficult to control construction quality of large water reservoirs. The purpose is to provide a semi-buried thermal insulation and anti-seepage water reservoir that can meet the insulation needs of high-cold and high-altitude areas, and solve the difficult problem of high construction cost and difficult to control construction quality of large water reservoirs, and the structural safety and economy of the water reservoir can also be guaranteed.

[0008] The present invention is achieved through the following technical solutions:

[0009] A semi-buried thermal insulation and anti-seepage water storage tank, comprising a water storage tank structure system, a thermal insulation system and an anti-seepage system; the water storage tank structure system comprises a cantilever retaining wall and a steel structure roof for forming the side wall of the water storage tank; the thermal insulation system comprises a sandwich panel, which extends from the outer surface of the steel structure roof to the outer surface of the cantilever retaining wall; the anti-seepage system comprises an anti-seepage membrane, which covers the wall and bottom of the water storage tank.

[0010] In this scheme, the water reservoir is a semi-buried water reservoir, and the cantilever retaining wall is half buried underground, with a burial depth greater than or equal to the designed freezing depth, to avoid the impact of frozen soil in high-cold areas. This water reservoir uses a cantilever retaining wall to form the side wall of the water reservoir, and a steel structure roof is set to form an overall water reservoir structure. A sandwich panel is set on the outer surface of the water reservoir structure, and the sandwich panel extends from the outer surface of the steel structure roof to the outer surface of the cantilever retaining wall. The buried depth of the sandwich panel is greater than or equal to the designed freezing depth. The thermal insulation system of the water reservoir is formed through the structural design of the sandwich panel; and an anti-seepage membrane is used to cover the wall and bottom of the water reservoir to form an anti-seepage system for the water reservoir.

[0011] Preferably, the anti-seepage membrane is a HDPE anti-seepage membrane.

[0012] As a further technical solution of the present invention, the anti-seepage system of the reservoir also includes an anti-seepage pool bottom structure. The anti-seepage pool bottom structure is composed of a plain soil layer, a sodium-based waterproof blanket layer, and an anti-seepage membrane from bottom to top. Through the design of the anti-seepage pool bottom structure, the anti-seepage capacity of the anti-seepage system of the reservoir is further enhanced.

[0013] As a further technical solution of the present invention, the water tank structure system of the water tank also includes a plurality of steel columns arranged at the bottom of the water tank for supporting the steel structure roof. The buried depth of the steel columns in the pool is not less than the designed freezing depth to avoid the influence of frozen soil in high-cold areas. The interval between the steel columns in the pool is 25 to 30 meters. By arranging the steel columns in the pool to support the steel structure roof, the stability of the water tank structure is ensured.

[0014] Preferably, an anti-permeability layer is provided on the steel column in the pool, and the anti-permeability layer covers the outer surface of the steel column and includes a plastic layer-a fine sand layer from the outside to the inside. By setting the anti-permeability layer, a closed anti-permeability system is formed, and the anti-permeability capacity of the anti-permeability system of the reservoir is strengthened. By setting the fine sand layer, the stability of the anti-permeability layer structure is enhanced, and the deformation of the plastic layer under the action of water pressure is prevented to affect the anti-permeability capacity. At the same time, by setting the fine sand layer, the anti-permeability layer is effectively fixed.

[0015] Preferably, a concrete coating layer is provided at the bottom of the plastic layer, and the concrete coating layer is located below the bottom of the reservoir, and the bottom of the plastic layer penetrates into the concrete coating layer; the top of the plastic layer is 20 cm above the water level, and the bottom is coated with concrete through the position setting of the plastic layer to improve the stability of the plastic layer, and the top extends above the water level to form a closed system, thereby ensuring the anti-seepage ability.

[0016] Preferably, a sealing part for preventing condensation water in the water reservoir from entering is provided 20 cm from the top of the fine sand layer. The sealing parts are composed of: caulking paste - asphalt hemp fiber, which prevents condensation water in the water reservoir from entering by sealing the top of the fine sand layer, thereby ensuring anti-seepage capability.

[0017] As a further technical solution of the present invention, the steel column in the pool also includes an anti-seepage membrane, which wraps the plastic layer and is hot-melt connected to the plastic layer, thereby ensuring the anti-seepage ability of the anti-seepage system.

[0018] As a further technical solution of the present invention, a reserved length of 5 to 10 cm is set at the turning point of the anti-seepage membrane and the bottom of the reservoir every 10 m. The setting of the reserved length is used to ensure that the anti-seepage membrane can adapt to the influence of uneven ground settlement on the anti-seepage membrane. When ground settlement occurs, there is sufficient reserved length to cover it, thereby reducing the influence of settlement on the anti-seepage membrane.

[0019] As a further technical solution of the present invention, the cantilever retaining wall is provided with expansion joints every 20 to 30 m. The expansion joints are provided to ensure the stability of the reservoir structure and reduce the impact of deformation on the reservoir structure.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] 1. The present invention relates to a semi-buried thermal insulation and anti-seepage water storage tank, which provides a thermal insulation and anti-seepage water storage tank structure with low construction cost, easy control of engineering quality, safe structure and high economy;

[0022] 2. The semi-buried heat-insulating and anti-seepage water storage tank of the present invention ensures the stability of the water storage tank structure by setting steel columns in the tank;

[0023] 3. The semi-buried thermal insulation and anti-seepage water storage tank of the present invention forms a closed and enclosed thermal insulation system through the arrangement of sandwich panels, which greatly improves the thermal insulation effect of the water storage tank;

[0024] 4. The semi-buried heat-insulating and anti-seepage water storage tank of the present invention greatly reduces the production cost while ensuring the anti-seepage capacity of the water storage tank by setting an anti-seepage membrane;

[0025] 5. The semi-buried heat-insulating anti-seepage water storage tank of the present invention forms a sufficient reserved length coverage by setting a reserved position of the anti-seepage membrane, thereby reducing the impact of settlement on the anti-seepage membrane;

[0026] 6. The present invention relates to a semi-buried thermal insulation and anti-seepage water storage tank. The design of the anti-seepage layer of the steel column in the tank ensures the anti-seepage ability of the anti-seepage structure. The design of the fine sand layer ensures the stability of the anti-seepage layer of the steel column in the tank, avoiding deformation of the anti-seepage layer due to water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0028] Figure 1 It is a schematic diagram of the structure of the water reservoir of the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle A part;

[0030] Figure 3 This is a plan view of the water storage tank of the present invention;

[0031] Figure 4 It is a schematic diagram of the steel column structure in the pool of the present invention.

[0032] Reference numerals and corresponding component names:

[0033] 1- cantilever retaining wall, 2- steel structure roof, 3- sandwich panel, 4- anti-seepage membrane, 5- steel column in the pool, 6- plain soil layer, 7- sodium-based waterproof blanket layer, 8- plastic layer, 9- fine sand layer, 10- caulking paste, 11- asphalt hemp fiber, 12- expansion joint. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0035] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0036] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0038] Example

[0039] like Figure 1-4 As shown, the present invention relates to a semi-buried thermal insulation and anti-seepage water storage tank, including a water storage tank structure system, a thermal insulation system and an anti-seepage system; the water storage tank structure system includes a cantilever retaining wall 1 and a steel structure roof 2 for forming the side wall of the water storage tank; the thermal insulation system includes a sandwich panel 3, and the sandwich panel 3 extends from the outer surface of the steel structure roof to the outer surface of the cantilever retaining wall; the anti-seepage system includes an anti-seepage membrane 4, and the anti-seepage membrane 4 covers the wall and bottom of the water storage tank.

[0040] In this solution, the water reservoir is a semi-buried water reservoir, and the cantilever retaining wall 1 is half buried underground, with a burial depth greater than or equal to the designed freezing depth, to avoid the impact of frozen soil in high-cold areas. The water reservoir uses the cantilever retaining wall 1 to form the side wall of the water reservoir, and a steel structure roof 2 is provided to form an overall water reservoir structure. A sandwich panel 3 is provided on the outer surface of the water reservoir structure, and the sandwich panel 3 extends from the outer surface of the steel structure roof 2 to the outer surface of the cantilever retaining wall 1, and the burial depth of the sandwich panel 3 is greater than or equal to the designed freezing depth. The thermal insulation system of the water reservoir is formed through the structural design of the sandwich panel 3; and an anti-seepage membrane 4 is used to cover the wall and bottom of the water reservoir to form an anti-seepage system of the water reservoir.

[0041] Preferably, the anti-seepage membrane 4 is a HDPE anti-seepage membrane.

[0042] As a further technical solution of the present invention, the anti-seepage system of the reservoir also includes an anti-seepage pool bottom structure. The anti-seepage pool bottom structure is composed of a plain soil layer 6, a sodium-based waterproof blanket layer 7, and an anti-seepage membrane 4 from bottom to top. The anti-seepage capacity of the anti-seepage system of the reservoir is further enhanced through the design of the anti-seepage pool bottom structure.

[0043] As a further technical solution of the present invention, the water tank structure system of the water tank also includes a plurality of steel columns 5 arranged at the bottom of the water tank for supporting the steel structure roof. The buried depth of the steel columns 5 in the pool is not less than the designed freezing depth to avoid the influence of frozen soil in high-cold areas. The intervals between the steel columns 5 in the pool are 25 to 30 meters. The steel structure roof 2 is supported by the steel columns 5 in the pool to ensure the stability of the water tank.

[0044] Preferably, an anti-permeability layer is provided on the steel column 5 in the pool, and the anti-permeability layer covers the outer surface of the steel column, and includes a plastic layer 8-a fine sand layer 9 from the outside to the inside. By setting the anti-permeability layer, a closed anti-permeability system is formed, and the anti-permeability ability of the anti-permeability system of the reservoir is strengthened. By setting the fine sand layer 9, the stability of the anti-permeability layer structure is enhanced, and the deformation of the plastic layer 8 under the action of water pressure is prevented to affect the anti-permeability ability, and at the same time, effective fixation is formed.

[0045] Preferably, a concrete coating layer is provided at the bottom of the plastic layer 8, and the concrete coating layer is located below the bottom of the reservoir, and the bottom of the plastic layer 8 penetrates into the concrete coating layer; the top of the plastic layer 8 is 20 cm above the water level. By setting the position of the plastic layer 8 and coating the bottom with concrete, the stability of the plastic layer 8 is improved, and the top extends above the water level to form a closed system, thereby ensuring the anti-seepage ability.

[0046] Preferably, a sealing part for preventing condensation water in the water reservoir from entering is provided 20 cm from the top of the fine sand layer 9, and the sealing parts are sequentially: caulking paste 10 - asphalt hemp 11, which prevents condensation water in the water reservoir from entering by sealing the top of the fine sand layer 9, thereby ensuring anti-seepage capability.

[0047] As a further technical solution of the present invention, the steel column in the pool further comprises an anti-seepage membrane 4, which wraps the plastic layer 8 and is hot-melt connected to the plastic layer 8, thereby ensuring the anti-seepage capability of the anti-seepage system.

[0048] As a further technical solution of the present invention, the anti-seepage membrane 4 is provided with a reserved length of 5 to 10 cm at every 10 m at the turning point of the anti-seepage membrane and the bottom of the reservoir. The setting of the reserved length is used to ensure that the anti-seepage membrane 4 can adapt to the influence of uneven settlement of the ground on the anti-seepage membrane 4. When ground settlement occurs, there is sufficient reserved length to cover it, thereby reducing the influence of the settlement on the anti-seepage membrane 4.

[0049] As a further technical solution of the present invention, the cantilever retaining wall 1 is provided with deformation joints 12 every 20 to 30 m. The arrangement of the deformation joints 12 ensures the stability of the reservoir structure and reduces the impact of deformation on the reservoir structure.

[0050] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A semi-buried thermal insulation and anti-seepage water storage tank, characterized in that: The water storage tank includes a water storage tank structure system, a heat preservation system and an anti-seepage system; The water tank structure system comprises a cantilever retaining wall (1) for forming the side wall of the water tank and a steel structure roof (2); The thermal insulation system comprises a sandwich panel (3), wherein the sandwich panel (3) extends from the outer surface of the steel structure roof (2) to the outer surface of the cantilever retaining wall (1); The anti-seepage system comprises an anti-seepage membrane (4), the anti-seepage membrane (4) covers the wall and bottom of the water storage tank, and the anti-seepage membrane (4) is a HDPE anti-seepage membrane; The anti-seepage system further comprises an anti-seepage pool bottom structure, wherein the anti-seepage pool bottom structure comprises, from bottom to top, a plain soil layer (6) - a sodium-based waterproof blanket layer (7) - an anti-seepage membrane (4); The water pool structure system further comprises a plurality of steel columns (5) arranged at the bottom of the water pool for supporting the steel structure roof (2), wherein the intervals between the steel columns (5) are 25 to 30 m; The steel column (5) in the pool is provided with an anti-permeability layer, which covers the outer surface of the steel column (5) in the pool and includes a plastic layer (8)-a fine sand layer (9) from the outside to the inside.

2. A semi-buried thermal insulation and anti-seepage water storage tank according to claim 1, characterized in that: A concrete coating layer is provided at the bottom of the plastic layer (8), the concrete coating layer is located below the bottom of the reservoir, and the bottom of the plastic layer (8) extends deep into the concrete coating layer; the top of the plastic layer (8) is 20 cm above the water level.

3. A semi-buried thermal insulation and anti-seepage water storage tank according to claim 1, characterized in that: A sealing part is provided 20 cm from the top of the fine sand layer to prevent condensed water in the water reservoir from entering. The sealing part comprises, from top to bottom, caulking paste (10) and asphalt hemp (11).

4. A semi-buried thermal insulation and anti-seepage water storage tank according to claim 1, characterized in that: The steel column (5) in the pool further comprises an anti-seepage membrane (4), wherein the anti-seepage membrane (4) wraps the plastic layer (8) and is hot-melt connected to the plastic layer (8).

5. A semi-buried thermal insulation and anti-seepage water storage tank according to any one of claims 1 to 4, characterized in that: The anti-seepage membrane (4) is provided with a reserved length of 5 to 10 cm at every 10 m interval at the turning point of the anti-seepage membrane (4) and at the bottom of the reservoir; the reserved length is used to adapt to the influence of uneven ground settlement on the anti-seepage membrane (4).

6. A semi-buried thermal insulation and anti-seepage water storage tank according to claim 1, characterized in that: The cantilever retaining wall (1) is provided with deformation joints (12) at intervals of 20 to 30 m.

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