Anti-fouling and anti-sand submerged dike water taking management system

Abstract

The invention relates to the technical field of hilly region river channel submerged dam water taking, and discloses an anti-fouling and anti-sand submerged dam water taking management system which comprises a multi-dimensional acquisition module and an intelligent monitoring module. According to the anti-fouling and anti-sand submerged dam water taking management system, management data of a dam body project, configuration data of a filtering material and detection data of water quality in a camera obscura are obtained through a multi-dimensional acquisition module and classified to form a data set, the stability degree of the dam body project is analyzed through an intelligent monitoring module, a corresponding stability coefficient is generated, the anti-erosion capacity of a dam body is quantitatively evaluated, and the anti-fouling and anti-sand submerged dam water taking management system is established. The intelligent monitoring module analyzes the cleanliness degree of water quality in the camera obscura, generates a corresponding quality coefficient, sets a threshold value in a fixed range, and judges whether the dam body is eroded by water flow and whether silt clogging exists in the filtering material; and corresponding management suggestions are output, so that the utilization rate of safe water supply resources is high.

Description

Technical Field

[0001] The invention relates to the technical field of water intake from submerged dams in river channels in hilly areas, and in particular to a water intake management system for anti-fouling and anti-sand submerged dams. Background Art

[0002] The anti-fouling and anti-sand submerged dam is an innovative water conservancy engineering facility, usually built at a specific location in the water body, generally underwater or close to the water at a relatively deep depth. The anti-fouling and anti-sand submerged dam has an ingenious structural design, and mostly adopts a permeable frame structure, which can not only ensure the natural passage of water flow to a certain extent, but also effectively intercept and filter pollutants and sediment carried in the water. The dam body material often uses a new type of composite material that is corrosion-resistant, high-strength and has little impact on water quality, ensuring that the submerged dam can still maintain stable structural performance under long-term water scouring and erosion. From the perspective of anti-fouling function, the submerged dam is equivalent to a huge "water purifier". When water containing various industrial wastewater, domestic sewage and agricultural non-point source pollutants passes through, the interception effect of the submerged dam will cause the water flow rate to decrease. This causes the suspended particles in the pollutants to gradually settle due to gravity, and some soluble pollutants will also undergo physical and chemical changes such as flocculation due to changes in hydrodynamic conditions, and then be adsorbed or precipitated near the dam body. At the same time, some special filtering devices equipped on the submerged dam, such as biofilm filter layer or activated carbon filter layer, can further purify the passing water flow, remove the residual organic pollutants, heavy metal ions and other harmful substances, thereby significantly improving the water quality of the water body, protecting the ecosystem of the downstream waters from pollution, providing a clean living environment for aquatic organisms, and maintaining biodiversity. In terms of sand control, rivers carry a large amount of sediment during their flow. If these sediments are uncontrolled and deposited in rivers, lakes or reservoirs, they will not only reduce the storage capacity of the water body and cause the risk of flood disasters, but also bury the growth area of ​​aquatic plants and destroy the underwater ecological balance. The anti-fouling and anti-sand submerged dam has a unique structure, so that most of the sediment will be intercepted and deposited in the siltation area formed in front of the dam when it encounters the dam body. After a period of natural sedimentation and consolidation, these deposited sediments can become part of the stable riverbed or lake bottom sediment layer, which helps to shape and maintain reasonable underwater topography. Moreover, the silt deposited in the submerged dam can be cleaned and utilized regularly, and can also be used in land improvement, land reclamation and other projects, thus realizing the recycling of resources and turning waste into treasure.

[0003] At present, there are varying degrees of problems with the traditional anti-pollution and anti-sand submersible dam water intake methods in terms of both quality and quantity. The main problems are reflected in the interference of sediment and pollutants on the water intake process, which in turn affects subsequent utilization and guarantee. The design structures of submersible dams in different regions vary, and their engineering quality, seepage performance, and water quality are closely related. It is necessary to manually adjust the water intake strategy. When taking water from mountainous river channels and gullies, there are many floating objects and a large sediment content, resulting in frequent blockages in water conveyance pipelines and channels, unable to meet the drinking water needs of humans and livestock. There is a lack of in-depth analysis ability, making it difficult to quickly locate the root cause of the problem and resulting in low water resource utilization efficiency. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] In view of the deficiencies of the prior art, the present invention provides an anti-pollution and anti-sand submersible dam water intake management system, which has the advantages of strong applicability of intelligent management, high utilization rate of safe water supply resources, etc., and solves the problems of the traditional anti-pollution and anti-sand submersible dam water intake method that requires manual adjustment of the water intake strategy and low water resource utilization efficiency.

[0006] (2) Technical solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: An anti-pollution and anti-sand submersible dam water intake management system includes a multi-dimensional acquisition module and an intelligent monitoring module;

[0008] The anti-pollution and anti-sand submersible dam includes a dam body, a filtering material, a water inlet pipe, a blind box, a cover plate, a stilling basin, and an apron. The filtering material includes a non-sand concrete permeable body, a geotextile, graded sand, and a gravel body. The anti-pollution and anti-sand submersible dam is used to intercept groundwater, raise the water level, and form a water storage space;

[0009] The multi-dimensional acquisition module is composed of a submersible dam data unit, a filtering data unit, and a water quality data unit. The submersible dam data unit collects a submersible dam data set by connecting to a database through a network. The submersible dam data set includes management data of the dam body project. The filtering data unit collects a filtering data set by connecting to a detection device through a network. The filtering data set includes configuration data of the dam body filtering material. The water quality data unit collects a water quality data set by connecting to a detection device through a network. The water quality data set includes detection data of the water quality inside the blind box;

[0010] The intelligent monitoring module consists of a dam body evaluation unit, a seepage evaluation unit, a water quality evaluation unit, and a water intake management unit. The dam body evaluation unit analyzes the stability of the dam body project based on the submerged dam data set and generates a corresponding stability coefficient Wgx. The seepage evaluation unit analyzes the anti-pollution and anti-sand performance of the dam body filter material based on the filtration data set and generates a corresponding permeability coefficient Stx. The water quality evaluation unit analyzes the cleanliness of the water quality inside the dark box based on the water quality data set and generates a corresponding quality coefficient Zlx. The water intake management unit is set with fixed stability thresholds WGY, seepage thresholds STY, and quality thresholds ZLY. Then, by combining the stability coefficient Wgx, the permeability coefficient Stx, and the quality coefficient Zlx, it determines whether the dam body is eroded by water flow, whether there is sediment siltation inside the filter material, and the cleanliness of the water quality inside the dark box, and outputs corresponding management suggestions.

[0011] Preferably, the submerged dam data set includes the top width dk of the dam body, the slope ratio pb of the discharge side of the dam body, the depth xs of the stilling basin, the length hc of the apron, the compressive strength kq of the concrete, and the diameter gj of the inlet pipe.

[0012] Preferably, the filtration data set includes the porosity hk of the non-sand concrete permeable body, the thickness hd of the non-sand concrete permeable body, the quality zl of the geotextile, the water permeability zt of the geotextile, the thickness ph of the graded sand, the sand ratio ps of the graded sand, the thickness lh of the gravel body, the vertical height lg of the gravel body, and the horizontal distance lp of the gravel body.

[0013] Preferably, the water quality data set includes the chromaticity sd, the turbidity zd, the hardness yd, the pH value sj, the dissolved oxygen DO, and the metal element content jh.

[0014] Preferably, the calculation process of the stability coefficient Wgx is as follows:

[0015] Wgx = α1(BDK - dk) + α2(BPB - pb) + α3(BXS - xs) + α4(BHC - hc) + α5(kq - BKQ) + α6(BGJ - gj)

[0016] In the formula, BDK represents the standard value for measuring the top width of the dam body, α1 represents the weight for the difference between the standard value and the top width of the dam body, BPB represents the standard value for measuring the slope ratio of the water discharge side of the dam body, α2 represents the weight for the difference between the standard value and the slope ratio of the water discharge side of the dam body, BXS represents the standard value for measuring the depth of the stilling basin, α3 represents the weight for the difference between the standard value and the depth of the stilling basin, BHC represents the standard value for measuring the length of the apron, α4 represents the weight for the difference between the standard value and the length of the apron, BKQ represents the standard value for measuring the compressive strength of concrete, α5 represents the weight for the difference between the compressive strength of concrete and the standard value, BGJ represents the standard value for measuring the diameter of the inlet pipe, α6 represents the weight for the difference between the standard value and the diameter of the inlet pipe. α1, α2, α3, α4, α5, and α6 are all constants, and α1 + α2 + α3 + α4 + α5 + α6 = 1. α1(BDK - dk) + α2(BPB - pb) + α3(BXS - xs) + α4(BHC - hc) + α5(kq - BKQ) + α6(BGJ - gj) represents the stability coefficient of the dam project calculated according to the weights of α1, α2, α3, α4, α5, and α6.

[0017] Preferably, the calculation process of the permeability coefficient Stx is as follows:

[0018]

[0019] In the formula, β1 represents the weight for the porosity of the pervious body of non - sand concrete, β2 represents the weight for the thickness of the pervious body of non - sand concrete, β3 represents the weight for the quality of the geotextile, β4 represents the weight for the water permeability of the geotextile, β5 represents the weight for the thickness of the graded sand, β6 represents the weight for the sand - gravel ratio of the graded sand, β7 represents the weight for the thickness of the gravel body, represents the slope coefficient of the gravel body, β8 represents the weight for the slope coefficient of the gravel body. β1, β2, β3, β4, β5, β6, β7, and β8 are all constants, and β1 + β2 + β3 + β4 + β5 + β6 + β7 + β8 = 1. represents the permeability coefficient of the dam filter material calculated according to the weights of β1, β2, β3, β4, β5, β6, β7, and β8.

[0020] Preferably, the calculation process of the quality coefficient Zlx is as follows:

[0021] Zlx = ω1(BSD - sd) + ω2(BZD - zd) + ω3(BYD - yd) + ω4(sj - BSJ) + ω5(BDO - BO) + ω6(BJH - jh)

[0022] In the formula, BSD represents the standard value for measuring chromaticity, ω1 represents the weight for the difference between the standard value and chromaticity difference, BZD represents the standard value for measuring turbidity, ω2 represents the weight for the difference between the standard value and turbidity difference, BYD represents the standard value for measuring hardness, ω3 represents the weight for the difference between the standard value and hardness difference, BSJ represents the standard value for measuring pH value, ω4 represents the weight for the difference between the pH value and the standard value, BDO represents the standard value for measuring dissolved oxygen, ω5 represents the weight for the difference between the standard value and dissolved oxygen difference, BJH represents the standard value for measuring the content of metal elements, ω6 represents the weight for the difference between the standard value and the content of metal elements difference. ω1, ω2, ω3, ω4, ω5, and ω6 are all constants, and ω1 + ω2 + ω3 + ω4 + ω5 + ω6 = 1. ω1(BSD - sd) + ω2(BZD - zd) + ω3(BYD - yd) + ω4(sj - BSJ) + ω5(BDO - DO) + ω6(BJH - jh) represents the quality coefficient of the water intake quality calculated according to the weights of ω1, ω2, ω3, ω4, ω5, and ω6.

[0023] Preferably, when the stability coefficient Wgx is lower than the stability threshold WGY, it indicates that the dam body has been eroded by the water flow, and it is recommended to repair the dam body structure in time.

[0024] Preferably, when the permeability coefficient Stx is lower than or exceeds the permeability threshold STY, it indicates that there is already sediment blockage inside the filter material, and it is recommended to replace the filter material in time.

[0025] Preferably, when the quality coefficient Zlx is lower than the quality threshold ZLY, it indicates that the water quality cleanliness inside the dark box is low, and it is recommended to carry out water purification treatment.

[0026] Compared with the prior art, the present invention provides an anti-pollution and anti-sand submersible dam water intake management system, which has the following beneficial effects:

[0027] 1. The present invention connects the database and the detection device through the multi-dimensional acquisition module to obtain the management data of the dam project, the configuration data of the filter material, and the detection data of the water quality inside the dark box, and classifies and forms a submersible dam data set, a filter data set, and a water quality data set. The intelligent monitoring module analyzes the stability of the dam project according to the submersible dam data set and generates the corresponding stability coefficient Wgx to quantitatively evaluate the anti-erosion ability of the dam body. The reasonably designed dam body structure can significantly reduce the pollutant concentration and sediment content entering the water intake, improve the water intake quality, and ensure the water supply safety. Then, according to the filter data set, analyze the anti-pollution and anti-sand performance of the dam filter material and generate the corresponding permeability coefficient Stx. The stratified filtration has less impact on the river ecosystem, which is beneficial to maintaining the ecological balance and biodiversity of the river, and the intelligent management has strong applicability.

[0028] 2. The present invention uses an intelligent monitoring module to analyze the cleanliness of the water quality inside the dark box based on the water quality data set, and generates a corresponding quality coefficient Zlx to ensure scientific and reasonable analysis, reduce manual misjudgment, and then sets stable thresholds WGY, penetration thresholds STY, and quality thresholds ZLY within a fixed range to determine whether the dam body is eroded by water flow, whether there is sediment siltation inside the filter material, and the cleanliness of the water quality inside the dark box. When the stability coefficient Wgx is lower than the stable threshold WGY, it indicates that the dam body has been eroded by water flow, and it is recommended to repair the dam structure in a timely manner. When the penetration coefficient Stx is lower than or exceeds the penetration threshold STY, it indicates that there is sediment siltation inside the filter material, and it is recommended to replace the filter material in a timely manner. When the quality coefficient Zlx is lower than the quality threshold ZLY, it indicates that the cleanliness of the water quality inside the dark box is low, and it is recommended to carry out water purification treatment, with high utilization rate of safe water supply resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a system flowchart of the present invention;

[0030] Figure 2 It is a sectional view of the anti-pollution and anti-sand submersible dam water intake design of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Since there are various problems in the traditional anti-pollution and anti-sand submersible dam water intake method in terms of quality and quantity, which are mainly reflected in the interference of sediment and pollutants on the water intake process, thus affecting subsequent utilization and guarantee. The design structures of submersible dams in different regions are different, and their engineering quality, seepage performance and water quality are closely related. It is necessary to flexibly adjust the water intake strategy manually. When taking water from mountainous rivers and gullies, there are many floating objects and large sediment content, resulting in frequent siltation of water conveyance pipelines and channels, unable to meet the drinking water needs of humans and livestock, lacking the ability of in-depth analysis, and being difficult to quickly locate the root cause of the problem, resulting in low utilization rate of water resources. Therefore, an anti-pollution and anti-sand submersible dam water intake management system is provided. Please refer to Figure 1 - Figure 2 An anti-pollution and anti-sand submersible dam water intake management system, including a multi-dimensional acquisition module and an intelligent monitoring module;

[0033] The anti-fouling and anti-sand submerged dam includes a dam body, filter material, water inlet pipe, dark box, cover plate, energy dissipation pool and apron. The filter material includes sandless concrete permeable body, geotextile, graded sand and gravel body. The anti-fouling and anti-sand submerged dam is used to intercept groundwater, raise the water level and form a water storage space. Among them, the dam body, dark box and filter material are all buried below the water surface. The dark box usually adopts reinforced concrete structure, and PE or steel water inlet pipe is pre-buried on the water-facing surface. The structural type is determined according to the actual terrain. It can effectively collect and store clean drinking water for humans and livestock or farmland irrigation water. It can also be used for power generation water for small power stations according to actual needs. It solves the problems of frequent siltation of water pipes and channels and inability to meet the drinking water needs of humans and livestock due to the large number of floating objects and high sand content in rivers and ditches in hilly areas. At the same time, it realizes the efficient and reasonable use of water resources. It has a simple structure, low construction cost, easy implementation and maintenance, and is conducive to promotion;

[0034] The multi-dimensional acquisition module consists of a submerged dam data unit, a filtering data unit and a water quality data unit. The submerged dam data unit collects the submerged dam data set through a network connection database. The submerged dam data set includes the management data of the dam project. The submerged dam data set includes the dam top width dk, the slope ratio pb on the dam discharge side, the stilling pool depth xs, the length of the guardrail hc, the concrete compressive strength kq and the inlet pipe diameter gj. In the process of pouring the underwater submerged dam, the dam body adopts a gravity structure and the material is concrete. The top width of the dam body should be 0.5 to 4 meters according to the actual situation. The slope ratio on the dam discharge side should be 1:0.3 to 1:1. The depth of the stilling pool should be 0.5 to 1.5 meters according to the discharge volume, and the width is consistent with the dam width. In order to eliminate the erosion of the dam body by backwater scouring, a 2 to 5 meter guardrail should be set at the end of the stilling pool. The materials of the stilling pool and the guardrail should be consistent with the dam body.

[0035] The filtering data unit collects a filtering data set through the network connection detection device. The filtering data set includes the configuration data of the dam body filtering material. The filtering data set includes the porosity hk of the non-sand concrete permeable body, the thickness hd of the non-sand concrete permeable body, the quality zl of the geotextile, the water permeability zt of the geotextile, the thickness ph of the graded sand layer, the sand-stone ratio ps of the graded sand, the thickness lh of the gravel body, the vertical height lg of the gravel body, and the horizontal distance lp of the gravel body. During the process of laying the filtering body, the first layer is non-sand concrete, the porosity should be between 15% and 25%, and the thickness should be 0.5 to 3 meters. Using its good water permeability and air permeability, it can intercept sand and dirt in the water flow. The second layer is geotextile, and needle-punched non-woven geotextile with a quality greater than 280 g / ㎡ should be selected. Using its water permeability, it can filter sand and dirt carried in the water flow, prevent sand from entering the non-sand concrete layer, and block its water permeable channel. The third layer is graded sand, the thickness of the graded sand layer should be 0.5 to 5 meters, and the stone-sand ratio of the graded sand is required to be between 1.6 and 1.8, blocking most of the pollutants carried in the water flow. The last layer is the gravel body. The gravel body layer is in direct contact with the river water inflow. Using its good water permeability, it can filter larger floating objects (branches, plastic bags, etc.) carried in the water flow. At the same time, using its anti-scouring ability and stability performance, it can protect the overall stability of the submerged dam. Its thickness should be taken as 1 to 5 meters according to actual needs, and then the slope coefficient should be determined by its height and width, and should be taken as 1:0.3 to 1:1;

[0036] The water quality data unit collects a water quality data set through the network connection detection device. The water quality data set includes the detection data of the water quality inside the dark box. The water quality data set includes chromaticity sd, turbidity zd, hardness yd, pH value sj, dissolved oxygen DO, and metal element content jh;

[0037] The intelligent monitoring module is composed of a dam body evaluation unit, a seepage evaluation unit, a water quality evaluation unit, and a water intake management unit. The dam body evaluation unit analyzes the stability of the dam body project based on the submerged dam data set and generates the corresponding stability coefficient Wgx. The calculation process is as follows:

[0038] Wgx = α1(BDK - dk) + α2(BPB - pb) + α3(BXS - xs) + α4(BHC - hc) + α5(kq - BKQ) + α6(BGJ - gj)

[0039] In the formula, BDK represents the standard value for measuring the top width of the dam body, α1 represents the weight for the difference between the standard value and the top width of the dam body, BPB represents the standard value for measuring the slope ratio of the water discharge side of the dam body, α2 represents the weight for the difference between the standard value and the slope ratio of the water discharge side of the dam body, BXS represents the standard value for measuring the depth of the stilling basin, α3 represents the weight for the difference between the standard value and the depth of the stilling basin, BHC represents the standard value for measuring the length of the apron, α4 represents the weight for the difference between the standard value and the length of the apron, BKQ represents the standard value for measuring the compressive strength of concrete, α5 represents the weight for the difference between the compressive strength of concrete and the standard value, BGJ represents the standard value for measuring the diameter of the inlet pipe, α6 represents the weight for the difference between the standard value and the diameter of the inlet pipe. α1, α2, α3, α4, α5, and α6 are all constants, and α1 + α2 + α3 + α4 + α5 + α6 = 1. α1(BDK - dk) + α2(BPB - pb) + α3(BXS - xs) + α4(BHC - hc) + α5(kq - BKQ) + α6(BGJ - gj) represents the stability coefficient of the dam project calculated according to the weights of α1, α2, α3, α4, α5, and α6, quantitatively evaluating the erosion resistance of the dam body. A reasonably designed dam structure can significantly reduce the pollutant concentration and sediment content entering the water intake, improve the water intake quality, and ensure the water supply safety;

[0040] Based on the filtered dataset, the seepage assessment unit analyzes the anti-pollution and anti-sand performance of the dam's filter material and generates the corresponding permeability coefficient Stx. The calculation process is as follows:

[0041]

[0042] In the formula, β1 represents the weight for the porosity of the non-sand concrete permeable body, β2 represents the weight for the thickness of the non-sand concrete permeable body, β3 represents the weight for the quality of the geotextile, β4 represents the weight for the water permeability of the geotextile, β5 represents the weight for the thickness of the graded sand, β6 represents the weight for the graded sand ratio, β7 represents the weight for the thickness of the gravel body, represents the slope coefficient of the gravel body, β8 represents the weight for the slope coefficient of the gravel body. β1, β2, β3, β4, β5, β6, β7, and β8 are all constants, and β1 + β2 + β3 + β4 + β5 + β6 + β7 + β8 = 1. represents the permeability coefficient of the dam's filter material calculated according to the weights of β1, β2, β3, β4, β5, β6, β7, and β8. The stratified filtration has less impact on the river ecosystem, is conducive to maintaining the ecological balance and biodiversity of the river, and has strong applicability for intelligent management;

[0043] The water quality assessment unit analyzes the cleanliness of the water quality inside the dark box based on the water quality data set and generates the corresponding quality coefficient Zlx. The calculation process is as follows:

[0044] Zlx = ω1(BSD - sd) + ω2(BZD - zd) + ω3(BYD - yd) + ω4(sj - BSJ) + ω5(BOO - DO) + ω6(BJH - jh)

[0045] In the formula, BSD represents the standard value for measuring chromaticity, ω1 represents the weight for the difference between the standard value and chromaticity, BZD represents the standard value for measuring turbidity, ω2 represents the weight for the difference between the standard value and turbidity, BYD represents the standard value for measuring hardness, ω3 represents the weight for the difference between the standard value and hardness, BSJ represents the standard value for measuring pH value, ω4 represents the weight for the difference between the pH value and the standard value, BDO represents the standard value for measuring dissolved oxygen, ω5 represents the weight for the difference between the standard value and dissolved oxygen, BJH represents the standard value for measuring the content of metal elements, ω6 represents the weight for the difference between the standard value and the content of metal elements. ω1, ω2, ω3, ω4, ω5, and ω6 are all constants, and ω1 + ω2 + ω3 + ω4 + ω5 + ω6 = 1. ω1(BSD - sd) + ω2(BZD - zd) + ω3(BYD - yd) + ω4(sj - BSJ) + ω5(BDO - DO) + ω6(BJH - jh) represents the quality coefficient of the water quality taken according to the weights of ω1, ω2, ω3, ω4, ω5, and ω6, ensuring scientific and reasonable analysis and reducing manual misjudgment;

[0046] The water intake management unit sets stable thresholds WGY, penetration thresholds STY, and quality thresholds ZLY within a fixed range. Then, combined with the stability coefficient Wgx, penetration coefficient Stx, and quality coefficient Zlx, it judges whether the dam body is eroded by water flow, whether there is sediment siltation inside the filter material, and the cleanliness of the water quality inside the dark box. When the stability coefficient Wgx is lower than the stable threshold WGY, it means that the dam body has been eroded by water flow, and it is recommended to repair the dam body structure in time. When the penetration coefficient Stx is lower than or exceeds the penetration threshold STY, it means that there is sediment siltation inside the filter material, and it is recommended to replace the filter material in time. When the quality coefficient Zlx is lower than the quality threshold ZLY, it means that the cleanliness of the water quality inside the dark box is low, and it is recommended to carry out water purification treatment, with high utilization rate of safe water supply resources.

[0047] Example 1:

[0048] In this experiment, an anti - pollution and anti - sand submerged dam with a top width of 3 meters of the dam body was selected as the experimental object. After statistics, the slope ratio of the water - discharging side of the dam body is 1:1, the depth of the stilling basin is 1 meter, the length of the apron is 4 meters, the concrete compressive strength is 28 MPa, and the diameter of the inlet pipe is 0.9 meters. The calculation process of the stability coefficient Wgx of this dam body is as follows:

[0049] Wgx = α1(BDK - dk) + α2(BPB - pb) + α3(BXS - xs) + α4(BHC - hc) + α5(kq - BKQ) + α6(BGJ - gj)

[0050] Wgx = 0.2×(4 - 3) + 0.2×(1:0.5 - 1:1) + 0.2×(1.5 - 10 + 0.2×(5 - 4) + 0.1×(30 - 28) + 0.1×(1 - 0.9) = 0.91

[0051] In the formula, BDK = 4 m represents the standard value for measuring the top width of the dam body, α1 = 0.2 represents the weight for the difference between the standard value and the top width of the dam body, BPB = 1:0.5 represents the standard value for measuring the slope ratio of the water discharge side of the dam body, α2 = 0.2 represents the weight for the difference between the standard value and the slope ratio of the water discharge side of the dam body, BXS = 1.5 m represents the standard value for measuring the depth of the stilling basin, α3 = 0.2 represents the weight for the difference between the standard value and the depth of the stilling basin, BHC = 5 m represents the standard value for measuring the length of the apron, α4 = 0.2 represents the weight for the difference between the standard value and the length of the apron, BKQ = 30 MPa represents the standard value for measuring the compressive strength of concrete, α5 = 0.1 represents the weight for the difference between the compressive strength of concrete and the standard value, BGJ = 1 m represents the standard value for measuring the diameter of the inlet pipe, α6 = 0.1 represents the weight for the difference between the standard value and the diameter of the inlet pipe. α1, α2, α3, α4, α5, and α6 are all constants, and 0.2 + 0.2 + 0.2 + 0.2 + 0.1 + 0.1 = 1. According to the weights of α1, α2, α3, α4, α5, and α6, the stability coefficient Wgx of the dam body project is calculated to be 0.91. The stability threshold WGY is set to 0.9 - 1.5. After judgment, the stability coefficient Wgx of the dam body project is included in the stability threshold WGY, indicating that the dam body is not eroded by water flow and does not need to be repaired.

[0052] Example 2:

[0053] In this experiment, a pollution - and sand - prevention submerged dam with a thickness of 1 m of non - sand concrete permeable body was used as the experimental object. After testing, the porosity of the non - sand concrete permeable body of the dam body was 20%, the mass of the geotextile was 280 g / m2, the water permeability of the geotextile was 6%, the thickness of the graded sand was 4 m, the ratio of graded sand to gravel was 1.6, the thickness of the gravel body was 4 m, the vertical height of the gravel body was 3 m, and the horizontal distance of the gravel body was 3 m. The calculation process of the permeability coefficient Stx of the dam body is as follows:

[0054]

[0055] In the formula, β1 = 0.2 represents the weight for the porosity of the sand-free concrete permeable body, β2 = 0.15 represents the weight for the thickness of the sand-free concrete permeable body, β3 = 0.1 represents the weight for the quality of the geotextile, β4 = 0.1 represents the weight for the water permeability of the geotextile, β5 = 0.15 represents the weight for the thickness of the graded sand, β6 = 0.1 represents the weight for the sand-gravel ratio of the graded sand, β7 = 0.1 represents the weight for the thickness of the gravel body, represents the slope coefficient of the gravel body, β8 = 0.1 represents the weight for the slope coefficient of the gravel body. β1, β2, β3, β4, β5, β6, β7 and β8 are all constants, and 0.2 + 0.15 + 1 + 1 + 0.15 + 0.1 + 0.1 + 0.1 = 1. According to the weights of β1, β2, β3, β4, β5, β6, β7 and β8, the permeability coefficient Stx of the dam body filter material is calculated to be 34.01, and the permeability threshold STY is set to 35 - 80. After judgment, the permeability coefficient Stx of the dam body is lower than the permeability threshold STY, indicating that there is already sediment clogging inside the filter material. It is recommended to replace the filter material in time.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water intake management system for anti-fouling and anti-sand submerged dam, characterized by: Including multi-dimensional acquisition module and intelligent monitoring module; The anti-fouling and anti-sand submerged dam comprises a dam body, filter material, water inlet pipe, dark box, cover plate, energy dissipation pool and apron, the filter material comprises a sand-free concrete permeable body, geotextile, graded sand and gravel body, and the anti-fouling and anti-sand submerged dam is used to intercept groundwater, raise the water level and form a water storage space; The multi-dimensional acquisition module is composed of a submerged dam data unit, a filtering data unit and a water quality data unit. The submerged dam data unit collects a submerged dam data set through a network connection to a database, and the submerged dam data set includes management data of a dam body project. The filtering data unit collects a filtering data set through a network connection detection device, and the filtering data set includes configuration data of a dam body filtering material. The water quality data unit collects a water quality data set through a network connection detection device, and the water quality data set includes detection data of water quality inside a dark box. The intelligent monitoring module consists of a dam body assessment unit, a seepage assessment unit, a water quality assessment unit and a water intake management unit. The dam body assessment unit analyzes the stability of the dam body project based on the submerged dam data set and generates a corresponding stability coefficient Wgx. The seepage assessment unit analyzes the anti-fouling and anti-sand performance of the dam body filter material based on the filtering data set and generates a corresponding permeability coefficient Stx. The water quality assessment unit analyzes the cleanliness of the water quality inside the dark box based on the water quality data set and generates a corresponding quality coefficient Zlx. The water intake management unit is provided with a fixed range of stability threshold WGY, permeability threshold STY and quality threshold ZLY, and then combines the stability coefficient Wgx, permeability coefficient Stx and quality coefficient Zlx to judge whether the dam body is eroded by water flow, whether there is silt clogging inside the filtering material, and the cleanliness of the water quality inside the dark box, and outputs corresponding management suggestions.

2. The anti-fouling and anti-sand submerged dam water intake management system according to claim 1, characterized in that: The submerged dam data set includes the dam top width dk, the dam discharge side slope ratio pb, the stilling pool depth xs, the apron length hc, the concrete compressive strength kq and the water inlet pipe diameter gj.

3. The anti-fouling and anti-sand submerged dam water intake management system according to claim 2, characterized in that: The filtered data set includes the porosity hk of the sandless concrete permeable body, the thickness hd of the sandless concrete permeable body, the quality zl of the geotextile, the permeability zt of the geotextile, the thickness ph of the graded sand, the ratio ps of the graded sand and gravel, the thickness lh of the gravel body, the vertical height lg of the gravel body and the horizontal distance lp of the gravel body.

4. The anti-fouling and anti-sand submerged dam water intake management system according to claim 3, characterized in that: The water quality data set includes chromaticity sd, turbidity zd, hardness yd, pH value sj, dissolved oxygen DO and metal element content jh.

5. The anti-fouling and anti-sand submerged dam water intake management system according to claim 4, characterized in that: The calculation process of the stability coefficient Wgx is as follows: Wgx=α1(BDK-dk)+α2(BPB-pb)+α3(BXS-xs)+α4(BHC-hc)+α5(kq-BKQ)+α6(BGJ-gj) In the formula, BDK represents the standard value for measuring the top width of the dam body, α1 represents the weight for the difference between the standard value and the top width of the dam body, BPB represents the standard value for measuring the slope ratio of the dam body discharge side, α2 represents the weight for the difference between the standard value and the slope ratio of the dam body discharge side, BXS represents the standard value for measuring the depth of the stilling pool, α3 represents the weight for the difference between the standard value and the depth of the stilling pool, BHC represents the standard value for measuring the length of the guardrail, α4 represents the weight for the difference between the standard value and the length of the guardrail, BKQ represents the standard value for measuring the compressive strength of concrete, α5 represents the weight for the compressive strength of concrete The weight of the difference between the compressive strength and the standard value, BGJ represents the standard value used to measure the diameter of the water inlet pipe, α6 represents the weight for the difference between the standard value and the diameter of the water inlet pipe, α1, α2, α3, α4, α5 and α6 are all constants, and α1+α2+α3+α4+α5+α6=1, α1(BDK-dk)+α2(BPB-pb)+α3(BXS-xs)+α4(BHC-hc)+α5(kq-BKQ)+α6(BGJ-gj) represents the stability coefficient of the dam project calculated according to the weights of α1, α2, α3, α4, α5 and α6.

6. The anti-fouling and anti-sand submerged dam water intake management system according to claim 5, characterized in that: The calculation process of the permeability coefficient Stx is as follows: In the formula, β1 represents the weight for the porosity of the sandless concrete permeable body, β2 represents the weight for the thickness of the sandless concrete permeable body, β3 represents the weight for the quality of geotextiles, β4 represents the weight for the permeability of geotextiles, β5 represents the weight for the thickness of graded sand, β6 represents the weight for the graded sand-gravel ratio, and β7 represents the weight for the thickness of the gravel body. represents the slope coefficient of the gravel body, β8 represents the weight of the slope coefficient of the gravel body, β1, β2, β3, β4, β5, β6, β7 and β8 are all constants, and β1+β2+β3+β4+β5+β6+β7+β8=1, It means that the permeability coefficient of the dam filter material is calculated according to the weights of β1, β2, β3, β4, β5, β6, β7 and β8.

7. The anti-fouling and anti-sand submerged dam water intake management system according to claim 6, characterized in that: The quality coefficient Zlx calculation process is as follows: Zlx=ω1(BSD-sd)+ω2(BZD-zd)+ω3(BYD-yd)+ω4(sj-BSJ)+ω5(BDO-DO)+ω6(BJH-jh) In the formula, BSD represents the standard value for measuring color, ω1 represents the weight for the difference between the standard value and the color, BZD represents the standard value for measuring turbidity, ω2 represents the weight for the difference between the standard value and the turbidity, BYD represents the standard value for measuring hardness, ω3 represents the weight for the difference between the standard value and the hardness, BSJ represents the standard value for measuring pH, ω4 represents the weight for the difference between pH and the standard value, BDO represents the standard value for measuring dissolved oxygen, ω5 represents the weight for the difference between the standard value and dissolved oxygen, and BJH represents It is used to measure the standard value of metal element content, ω6 represents the weight for the difference between the standard value and the metal element content, ω1, ω2, ω3, ω4, ω5 and ω6 are all constants, and ω1+ω2+ω3+ω4+ω5+ω6=1, ω1(BSD-sd)+ω2(BZD-zd)+ω3(BYD-yd)+ω4(sj-BSJ)+ω5(BDO-DO)+ω6(BJH-jh) represents the quality coefficient of the water quality calculated according to the weights of ω1, ω2, ω3, ω4, ω5 and ω6.

8. The anti-fouling and anti-sand submerged dam water intake management system according to claim 7, characterized in that: When the stability coefficient Wgx is lower than the stability threshold WGY, it means that the dam body has been eroded by water flow, and it is recommended to repair the dam structure in time.

9. The anti-fouling and anti-sand submerged dam water intake management system according to claim 8, characterized in that: When the permeability coefficient Stx is lower than or exceeds the permeability threshold STY, it indicates that there is silt clogging inside the filter material, and it is recommended to replace the filter material in time.

10. The anti-fouling and anti-sand submerged dam water intake management system according to claim 9, characterized in that: When the quality coefficient Zlx is lower than the quality threshold ZLY, it indicates that the water quality inside the dark box is low, and water purification is recommended.

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