79results about How to "Ensure flood safety" patented technology

The invention discloses a step reservoir flood limit water level combined application dispatching method which comprises the following steps of: 1. establishing a polymerized reservoir-based prediction prestorage model; 2. establishing a prestorage reservoir capability upper limit relationship model of upstream and downstream step reservoirs according to the hydraulic relation between the upstream and the downstream reservoirs and the flood control standards of all flood control points; 3. confirming the optimal target and the constraint condition of step reservoir flood limit water level combined application dispatch; and 4. obtaining a step reservoir flood limit water level combined application dispatching scheme by adopting an optimal method. The invention can be used for carrying out uniform dispatch on the flood limit water level of all upstream and downstream reservoirs of a step reservoir in the flood period and can improve the economical benefits of the step reservoir to the greatest extent on the premise of ensuring the flood control safety of the step reservoir, is suitable for application in the step reservoir or reservoir group flood resource dispatch and can be widely applied to the river basin step reservoir flood limit water level combined application dispatch.

The invention discloses a method drawing up a multi-goal reservoir optimization scheduling graph capable of being self-adaptive to climate change. The method for drawing up the multi-goal reservoir optimization scheduling graph comprises the steps of: step 1. establishing a coupling model of a global climate model (GCM) and a variable infiltration capacity (VIC) hydrological model so as to forecast a run-off process under a future climate change scene; step two. establishing a multi-goal reservoir optimization scheduling graph model; and step 3. taking the forecast run-off process data under the future climate change scene as the input of the optimization scheduling graph model, and drawing up the multi-goal optimization scheduling graph model by adapting a self-adaptive genetic algorithm. The method for drawing up the multi-goal reservoir optimization scheduling graph has the advantages of balancing the social economy goal and ecological goal of reservoir scheduling, improving the comprehensive benefits of reservoir scheduling to the maximum degree on the condition of ensuring the flood control safety of a reservoir and being capable of being self-adaptive to future climate change and being widely applied to the production practice of multi-goal reservoir optimization scheduling.

The invention relates to a bypass offline river purifying method and a bypass offline river purifying system. According to the invention, a branch of a polluted river is adopted as a basis; a drainage channel is constructed, such that a bypass is formed; polluted river water is introduced into the bypass from the branch, such that the retention time of the polluted river water in the bypass is increased; in the bypass, pollutants are removed with offline and online ecological engineering technology and environmental engineering technology; and purified water flows into a main stream, such that river water quality is improved, and river ecosystem is restored. The invention also discloses a purifying system used for realizing the bypass offline river purifying method. According to the invention, main stream river channel original status is not changed, main stream flood protection is not influenced, and water quality purification and ecological restoration effects are good. The method and the system are suitable for ecological management and ecological restoration of polluted river with rich branches, dense drainage irrigation channels, or developed ponds.

The invention relates to a dynamic operation water level control method for a 3D or higher cascaded reservoirs in flood season. The method comprises the steps that 1) the relation of upper pre-impounded water level limits among the 3D or higher cascaded reservoirs is analyzed on the basis of an aggregation-decomposition theory and a pre-impounding pre-discharge method; 2) an optimized scheduling module which takes the minimal flood prevention risk rate, the minimal under-generation risk rate and the minimal under-impounding risk rate in the effective forecast period of a flood forecast as target functions, the operation water level in the flood season as a decision variable, and a manual fish swarm algorithm as an optimized solution algorithm is established, a non-inferior solution set is provided for dynamic operation water level control in the flood season, and a decision scheme set is provided for a multi-target decision module; and 3) the multi-target decision module which takes the minimal flood prevention risk rate, the minimal under-generation risk rate, the minimal under-impounding risk rate, the maximal generation capacity and the maximal impounding rate as evaluation indexes and a network analysis method as a multi-target evaluation method is established, and a preferable decision scheme of the dynamic operation water level control in the flood season is selected. Thus, theoretical basis and technical support are provided for scientifically making a combined dynamic operation water level control scheme for the cascaded reservoirs in the flood season.

The invention relates to a flood prevention dispatching decision support system, which comprises an on-line model server, a database, a data interface and a WEB application server, wherein the on-line model server is used for receiving hydrologic remote measurement data, and performing flood prediction simulation according to the hydrologic remote measurement data; the database is connected with each piece of hydrologic remote measurement equipment, and is used for storing hydrologic remote measurement data collected by the hydrologic remote measurement equipment; and the data interface and the WEB application server are respectively connected with the database and the on-line model server, are used for pushing the hydrologic remote measurement data in the database to the on-line model server, receiving the prediction simulation result and issuing the prediction simulation result to a remote network terminal. Compared with the prior art, the flood prevention dispatching decision support system has the advantages that the on-line model server performs flood prediction simulation according to the hydrologic remote measurement data; the outward issuing of the prediction result is realized through the data interface and the WEB application server; the rainfall water accumulation condition is simulated in real time according to the rainfall condition; the water accumulation point positions, the water accumulation depth and the water subsiding time are predicted; and the decision support is provided for water discharge emergency rescue and pump station optimization operation.

The invention discloses a two-dimensional unsteady-flow numerical model based power engineering location method. On the basis of a plurality of site locations primarily selected according to design requirements of a power grid transmission line, the two-dimensional unsteady-flow numerical model is subjected to verification, parameter modification and design flood simulation by determining a simulation area, digitizing the simulation area and establishing the two-dimensional unsteady-flow numerical model and historical flood data, the site locations primarily selected are sorted according to largest submerged depth, and a primary selection sequence of the site locations is obtained. By the two-dimensional unsteady-flow numerical module flood routing technology, hydrologic characteristics in a certain area and flood hydraulic elements during simulation of flood routing can be truly and objectively reflected, flood control safety of electric power engineering can be guaranteed, construction accuracy can be improved, land source consumption can be reduced, and construction cost can be lowered.

The present invention relates to water conservancy engineering, especially the tackling of seasonal riberbed and river course. The present invention is characterized by that subsiding stepped water accumulating river with subsiding dams is constructed without changing the cross section area and flood discharging runoff and the water accumulating riverbed is lowered gradually from the upstream to the downstream. The stepped water accumulating riverbed makes it possible to utilize water comprehensively for beautifying environment, preventing riverbed desertification, regulating air humidity, maintaining ecological balance and safety discharge flood.

The invention discloses a simulative nature river course water purification system. A river section is based on the trapezoidal compound section, multiple segments of filler purification regions are arranged at two sides in a main channel in a staggered manner so as to form sub-channels meandering on a plane, and the height of the filler purification region is higher than the low water level of the river; the filler purification region is filled with ripraps, broken stones and surface fillers from the bottom to the top; and a riprap banket is arranged between each two segments of filler purification regions. The simulative nature river course water purification system provides diversified habitat environments while strengthening the self cleaning capacity of the river and improving the river water environment quality, and plays an active role in repairing the biological diversity recovery of the stream segment. The simulative nature river course water purification system has the following remarkable advantages that the system operates in a passive unpowered manner, can improve the flow state, has no influence on the flood discharge of the main stream in the flood season, and has the advantages in multiple aspects, such as excellent water purification and ecological restoration effect and so on, especially, the system is suitable for the small rivers with low sediment amount and low flow velocity, or the scenic rivers.

The invention relates to a developing and governing method for a sandy wide channel canal / shoal / pool. A narrow river channel is formed by two main dikes (new flood dikes) which are constructed between the prior flood dikes at two sides of a sandy channel segment along the riverway trend, and large dams are constructed at the upstream and the downstream. A water supply and sand diversion canal is constructed at the inside or outside of at least one of the main dikes in the narrow river channel. A conveyance and navigation canal is constructed outside one or two sides of the narrow river channel. The conveyance and navigation canal is adjacent to the water supply and sand diversion canal or the conveyance and navigation canal, or the conveyance and navigation canal is a split type. The bottomland and the pool surrounded by the diking are changed from the shoal area between the main dike or canal dike and the prior flood dikes. The bottomland can be a permanent site for living, production, construction and development. The long-term reserved pool is capable of storing water resource and supplying water in non-flood season, storing floodwater and replenishing dryness in flood season, and detaining and storing the flood. The developing and governing method for the sandy wide channel canal / shoal / pool effectively prevents from flood, treats and uses slit, ensures the security in flood prevention, and supplies enough rinsing water source; the water service cost is low, and the method is capable of developing and utilizing the resources such as hydraulic power, shipping, and tourism, etc. in the channel segment, and the method has a positive meaning in improving environment.

The invention belongs to the field of water treatment, and specifically relates to a rainwater filtering device. The rainwater filtering device is characterized by comprising a filtering frame, filtering nets, a filtering material and a flow guiding device, wherein the filtering frame comprises a top, a side part and a bottom; the filtering nets are arranged at the bottom and the side surface of the filtering frame; the filtering material is arranged at the bottom of the filtering frame; the flow guiding device is mounted in the filtering frame. With the adoption of the rainwater filtering device, rainwater can be subjected to multi-grade treatment from the source, and pollutants such as granules, floating objects, nitrogen, phosphorus, oil and grease in rainwater can be separated; the intercepting effect is good; the pollution caused by that pollutants in rainwater is directly discharged to pollute natural water can be avoided.

The invention discloses a distributing well with a double flaps sluice gate and a drainage system and a drainage control methods thereof, which is of an intelligent drainage effect. Reasonable water discharging is achieved by reasonably controlling the opening of a double flaps sluice gate of the drainage system through a control system, sewage and initial rainwater are enclosed to a storing and regulating facility to the most extent, while flood discharging is guaranteed. The drainage control methods comprise a water level method, a water quality method, a water quality-water level method, atime method, a total amount method, a rainfall method, a time-water level method, a total amount-water level method, and a rainfall-water level method. The phenomenons of water current cannot be limited in a intercepting sewer, and clean water and later rainwater are sent to a sewage treatment plant through an intercepting sewer of the prior art are effectively solved by the regulating of the methods. The sewage is enclosed to the storing and regulating facility to the most extent, and cleaner water is discharged to natural water body by reasonably controlling discharging routes of the sewage,the initial rainwater and the mid-term and later rainwater.

The intelligent self-elevating retention wall which is arranged on a river levee and in single-section or multi-section arrangement comprises a concrete preformed groove, a retention wall body, a buoyant box, a limiting cover plate, a water inlet grate, a drainage channel and a water stopper. The concrete preformed groove is a rectangular longitudinal groove excavated in the river levee; the retention wall body is in an interlayer structure formed by two rectangular steel plates, and the buoyant box is in a premade empty box structure and capable of moving up and down along the side wall of the concrete preformed groove; the water inlet grate is fixed to a water side of the top end of the concrete preformed groove, the drainage channel is positioned on a water side of the bottom of the concrete preformed groove, and the tail end of the drainage channel is provided with the water stopper; the limiting cover plate is fixed to a backwater side of the top end of the concrete preformed groove, and the retention wall body moves up and down between the limiting cover plate and the water inlet grate. The intelligent self-elevating retention wall has the advantages that the retention wall is reliable in quality and simple in construction, the retention wall ascends to give play to wave walls in occurrence of flood and automatically descends to hide in a dam body after flood, and accordingly safety discharging can be guaranteed, and overall intelligence, avoidance of energy consumption and high economy are realized.

The invention discloses a device for accurately discarding and separating urban initial rainwater, comprising a rainwater inlet and a collection opening, wherein the rainwater inlet is formed in an upper part of the device, the collection opening is formed in a middle part of the device, a baffle plate is also arranged inside the device, the top end of the baffle plate is arranged below the collection opening, the bottom of the baffle plate is arranged at a bottom surface in the device, a chamber that is formed by a side wall where the baffle plate is arranged and a side wall where the collection opening is formed is divided into an upper chamber and a lower chamber by a separating plate, a drain hole is formed in the separating plate, a rainwater discarding plate is transversely arranged at a lower part of the baffle plate, and divides a chamber that is formed by opposite side walls of the baffle plate and the collection opening into an upper rainwater accumulating chamber and a lower rainwater discarding chamber, the rainwater discarding chamber is externally connected to a rainwater discarding pipe, a rainwater discarding opening is formed in the rainwater discarding plate, and a valve device is arranged in the device, and is configured to control the opening / closing of the rainwater discarding opening and the drain hole. The device according to the invention has the beneficial effects: the automatic and accurate discarding of initial rainwater and the automatic collection of posterior rainwater can be realized at any place in any amount of rainfall, rainwater can be separated effectively to prevent a pipeline from flowing backward, flood draining safety is ensured, and the device is convenient to repair and maintain.

The invention discloses a water draining system with a hydraulic downwards-open check gate and the pump draining function and a water draining control method. The water draining system is provided with a rainy-day submersible sewage pump, a sunny-day submersible sewage pump and the hydraulic downwards-open check gate; according to the liquid level height of water bodies in a well body of a flow dividing well or the water quality of water bodies in the well body of the flow dividing well, whether submersible sewage pumps work or not and the hydraulic downwards-open check gate is started or notcan be judged, and reasonable distribution of the water bodies is thus achieved. The water bodies with different water levels and / or water qualities can also be reasonably drained, and therefore the maximum governance effect is achieved. The water draining system is particularly suitable for the condition that a pipe extending to a sewage treatment plant is located at the high elevation and cannotbe drained in a gravity mode; as the submersible sewage pumps are arranged in the water draining system, water bodies with the poor quality in the well body of the flow dividing well are drained to the sewage treatment plant in a pump-draining mode, and during emergency flood discharging, sewage can also be drained to natural water bodies through a water outlet.

A hydraulic lifting water-retaining wall comprises a water-retaining steel plate and a floating box, wherein the water-retaining steel plate is of an interlayer structure formed by two rectangular solid steel plates, vertical reinforcement ribs are arranged between two layers of steel plates, and the floating box with a parallelogram shaped section is fixed on the back of the water-retaining steel plate; an inclined groove with a parallelogram shaped section is adopted as a concrete preformed groove, the included angle between the inclined groove and the level is 120 degrees, two T-shaped sliding rails are arranged in the middle of the concrete preformed groove, the floating box is arranged between the two sliding rails, the water-retaining steel is in natural contact with the top of a river levee, the width of the floating box is the same as that of the concrete preformed groove, and the floating box is lifted along the sliding rails in the concrete preformed groove. The hydraulic lifting water-retaining wall has the following advantages that when meeting flood, the water-retaining steel plate automatically lifts and plays the role of the water-retaining wall, and after flood, the water-retaining steel plate falls automatically to hide into the preformed groove in the inner side of the river levee to ensure safety of flood draining; the water-retaining wall is simple in structure and easy to implement, and has remarkable economical practicability.

The invention provides an ecological revetment structure with a pollution remediation function. The ecological revetment structure sequentially comprises a bank slope soil layer, a soil and biochar fine particle layer mixed layer, a biochar coarse particle layer and a rubble layer from top to bottom. Biochar particles are prepared by conducting high-temperature pyrolysis on stalks or straw under an oxygen deficient condition, and smashed and ground into biochar fine particles with the diameter being 0.5-0.8 cm after being subjected to acid cleaning activation; and biochar particles are prepared by conducting high-temperature pyrolysis on corncobs under an oxygen deficient condition, and smashed and ground into biochar coarse particles with the diameter being 1.5-2.0 cm after being subjected to acid cleaning activation. The ecological revetment structure can improve the water and nutrition storage capacity and remediation capacity of revetment soil and prevent water eutrophication; during waterflooding in a flooding period, the biochar can adsorb nutrient substances such as nitrogen and phosphorus, and after water recession, the adsorbed nutrient substances are slowly released and provided for plant growth; and meanwhile, the ecological revetment structure integrates the functions of keeping the water content of padding and preventing plants from dying due to a drought.

Disclosed is a lifting submerged dam. The lifting submerged dam is transversely arranged between rocks of two shores and is arranged in a multiple segment manner and comprises a concrete preformed groove, a water baffling dam body, a buoyancy tank, two limit cover plates, a water feed and drainage valve and an exhaust pipe. The concrete preformed groove is a cuboid transverse groove digged in the riverbed; the water baffling dam body is in a cuboid double-layered steel plate n-shaped structure, the buoyancy tank is in a prefabricated tank structure, and the water baffling dam body is fixed to the middle of the buoyancy tank; the water feed and drainage valve is located at the bottom of the buoyancy tank, the exhaust pipe is located at the top of the buoyancy tank, and the two limit cover plates are fixed to the riverbed of two sides of the water baffling dam body at the top of the concrete preformed groove. The lifting submerged dam is reliable in quality and easy to construct; in the water baffling period, the water baffling dam body is lifted to baffle water and bank up the water level; before the flood, the water baffling dam body is sunk and hidden into the preformed groove of the riverbed, and flood release is free of blockage; the problems of river water level and amount adjustment and control in the dry season can be solved through low cost, and the river ecological landscaping effect can be improved.

The invention discloses a pneumatic shield gate system for wind and solar complementary power generation, which includes a gate unit, a pneumatic power unit, and a power generation and power supply unit; It consists of a pneumatic control valve group for opening and closing a pneumatic shield gate, and a PLC controller that controls the action of the pneumatic control valve group; the pneumatic power unit is composed of at least two parallel air storage tanks and at least two parallel air compressors. , the air outlet of the air compressor is connected to the air inlet of the air storage tank and the pneumatic control valve group through the air outlet check valve through the combination of the front filter, the air dryer and the rear filter; the power generation unit includes wind power generation machines, solar panels, wind and solar hybrid controllers, and inverters. The advantage of the invention is that it is designed for the construction of barrage and sluice projects in remote and remote mountainous areas without power supply, and uses the characteristics of strong complementarity between wind energy and solar energy in terms of time and area to improve the stability of system operation.

The invention discloses a precision rainwater flow abandoning, filtering and storing integrated tank which comprises a tank body, and a flow abandoning device and a filtering well which are arranged on the tank body. A water inlet is formed in the flow abandoning device. The flow abandoning device is communicated with the filtering well through a liquid guiding opening. The filtering well is communicated with the interior of the tank body through a rainwater collection pipe. The precision rainwater flow abandoning, filtering and storing integrated tank has the advantages that on the basis of initial rainwater flow abandoning values planned by cities, the functions of precision rainwater flow abandoning, filtering, storing and leaking can be achieved, flood draining safety can be effectively ensured, the structure is compact and reliable, and maintenance is convenient.

The invention discloses a suspended anti-flood wall which comprises a flood bank, and the crest level of the flood blank is the same as that of an urban waterfront ground. A steel flash board is connected to the top face of the flood bank, a rotary shaft which is arranged on the waterside of the blood bank is arranged at the lower end of the steel flash board, the rotary shaft of the steel flash board is installed in a rotary shaft supporting base, and the rotary shaft supporting base is fixedly arranged on the top face of the flood bank; a flash board limiting baffle plate is arranged on the rotary shaft supporting base; an inhaul cable is connected to the steel flash board; a locking shaft is arranged on the backwater side of the steel flash board, and a locking device matched with the locking shaft is arranged on the top face of the flood bank. Under the condition that the anti-flood safety is ensured, the suspended anti-flood wall has no influence on visual continuity of people, thereby better improving the quality of an urban landscape and solving the problem that the urban landscape and urban flood control are contradicting.

The invention discloses an ecological seepage controlling and bed fixing system and a diaphragm wall structure. The diaphragm wall structure comprises an underground seepage intercepting structure andan exposed wall structure. The underground seepage intercepting structure is inserted into the side slope of a riverway in the width direction of the riverway, and therefore a riverbed is stabilizedand prevented from being undercut. The underground seepage intercepting structure comprises a plurality of seepage intercepting parts, the ends, away from the water surface of the riverway, of the seepage intercepting parts are formed on an impervious layer or a bed rock layer of the riverway, the seepage intercepting parts extend to the normal water level height of the riverway in the water levelrising direction, the measure of laying facilities on the impervious layer along the riverway is avoided, and it is avoided that due to the fact that impermeable material need to be additionally arranged, the base body of the riverway or the original ecological environment is damaged. The exposed wall structure is connected with the end, close to the water surface of the riverway, of the underground seepage intercepting structure, and the exposed wall structure is exposed out of the normal water level of the riverway in the water level rising direction. The vegetation development need of a riverside zone is met, and certain landscape water bodies are built.

The invention discloses a drainage system with a hydraulic power non-return check gate and pump discharge and a drainage control method. A rainy day submersible sewage pump, a sunny day submersible sewage pump and the hydraulic power non-return check gate are arranged in the drainage system, according to the liquid level height or the water quality of the water body in a well body of a flow distribution well, whether or not the submersible sewage pumps work can be judged, and then reasonable distribution of the water body is achieved. In addition, reasonable drainage can be further conducted aiming at the water bodies at different water levels or of different water qualities, and accordingly the maximized treatment effect is achieved. The drainage system is particularly suitable for the situation that a pipe which is connected with a sewage treatment plant is located at high terrain so that gravitational discharge cannot be achieved, through the submersible sewage pump in the drainagesystem, the water body with low water quality in the well body of the flow distribution well is drained to the sewage treatment plant in a pump discharge mode, and when emergency flood discharge is conducted, the water body with low water quality can also be drained into the natural water body through water outlets.

The invention relates to a device for automatically cleaning river channel garbage. The device comprises a drainage mechanism, a collecting mechanism and a control mechanism; the drainage mechanism is a movable fence panel composed of a row of L-shaped filtering fences; the movable fence panel comprises vertical-strip-shaped fences on the lower portion and a strip-shaped block arranged at the upper end in a protruding mode in the direction against the river; the collecting mechanism is a funnel-shaped flexible net arranged behind the upper portion of the movable fence panel; the control mechanism comprises a lifting control system and a direction control system; the lifting control system controls the movable fence panel to go up and down integrally according to the change of the water level; and the direction control system controls the magnitude of opening and closing of the vertical-strip-shaped fences. According to the device for automatically cleaning the river channel garbage, the problem that floating objects on the river surface need to be salvaged on the basis of manual work at the present is solved, and especially, the problems that the landscape effect is influenced and time and effort are wasted for cleaning due to the fact that the floating objects and other garbage deposit or adhere to plant bodies or the bank side after flood are solved.

The invention discloses a tidal flat photovoltaic power station construction method. The tidal flat photovoltaic power station construction method comprises the following steps that (1), tidal flat land is flattened in a partitioned mode, and the elevation values of the flattened partitions are repeated as much as possible on the premise of controlling the maximum filling thickness of each partition to be smaller than or equal to 0.4 m; (2), the length of a support foundation needed by each land partition is determined according to the elevation difference between the elevation value of the flattened land partition and the designed flood level; and (3), holes are guided in the flatted land partitions, then profile steel is inserted into the holes, casting in situ of the support foundationsis conducted partition by partition, and the profile steel of the same length is adopted by the land of the same partition. The mode of flattening the tidal flat land in the partitioned mode is adopted, so that the length specifications of the support foundations are controllable, the production and construction difficulty of the support foundations is reduced, and the construction cost is greatly reduced and the construction quality is improved on the premise of ensuring flood control safety of photovoltaic equipment; and the tidal flat photovoltaic power station construction method saves the prefabrication cost of the support foundations, meets the structural load requirement and reduces the influence of drawing off of floodwater on the discharged flow of a watercourse to the maximum extent at the same time.

The invention relates to a capping method for planar curve paths of a free-flow spillway tunnel, belonging to the technical field of hydraulic engineering. The method utilizes a capping technology for the planar curve path of a free-flow spillway tunnel to reduce the roof height, and comprises the following steps: firstly calculating the Froude number before the planar curve path when the free-flow spillway tunnel has maximum discharge flow; then determining the copping efficient according to the ratio of the width of the free-flow spillway tunnel to the turning radius of the planer curve path, the Froude number and the corner parameter of the planer curve path; and finally back calculating the residual amplitude of tunnel ceiling according to a defined copping coefficient. The residual amplitude of capping is required to be less than that of the tunnel roof before the planar curve path when the free-flow spillway tunnel has maximum discharge flow. In order to ensure that the flow of water at straight segments after copping outlet is stable, the extending length of the copping segment extending to the straight segments is designed to be 2-4 times of the width of the free-flow spillway tunnel. After the planar curve path of the free-flow spillway tunnel is copped, concave-bank water constrain restricted by copping is controlled to below the copping, to avoid negative and rolling flow state caused by the way that current flings the arc tunnel ceiling, thereby ensuring stable current of the downstream straight segments and realizing safe flood discharge.

The invention discloses a drainage system provided with a regulation and storage facility and an integrated treatment facility and a drainage control method. The drainage system has an intelligent drainage effect, reasonable drainage of water is realized through reasonable control of the opening degree of water gates and related assemblies in the drainage system by a control system, dirty water orinitial rainwater is intercepted to the regulation and storage facility to the greatest extent while discharging safety is guaranteed, water stored in the regulation and storage facility is treated through the integrated treatment facility and then directly drained, and treatment pressure of a sewage treatment factory on rainy days is greatly reduced. Through control with the method, the phenomena that sewage interception pipes in the prior art cannot perform flow limitation and clean water or later rain water can also enter the sewage interception pipes to be delivered to the sewage treatment factory are effectively prevented. During usage, manual operation is not required, the water gates can be automatically adjusted by means of a control unit, the system has the advantages of being flexible and the like, and a large quantity of manpower and material resources are reduced.

The invention discloses a novel intelligent grid stormwater and flood management system. The system comprises a plurality of subsystems. Each subsystem comprises a plurality of rainwater treatment modules. Each rainwater treatment module is composed of a collection device, a rainwater discarding device, a filtering and purifying device and a storage and leakage device which are arranged on the ground or on the lower portion of the kerb, wherein the rainwater discarding device and the filtering and purifying device are arranged on the storage device, the collection device is connected with a water inlet of the rainwater discarding device through a pipeline, the rainwater discarding device is communicated with the filtering and purifying device through a liquid guide opening, and the filtering and purifying device is communicated with the inside of the storage and leakage device through a rainwater collection pipe. According to planned initial rainwater discarding values of cities, the functions of rainwater collection, precise discarding, filtering, storage and leakage can be precisely achieved under any rainfall condition, flood drainage safety can be effectively guaranteed, the structure is reliable, and maintenance is convenient. Meanwhile, rainwater treatment conditions in an implementation area can be monitored as a whole, big data management of sponge city planning is achieved, and the ecological environment in the area is improved.

The invention provides a surface sewage interception system for a river. A river contains multiple first reaches and multiple second reaches; the first reaches are riverways whose tops are covered, underground rivers or seriously polluted reaches in the riverways; the tops of the second reaches are open, and the second reaches are located on one side or two sides of the first reaches; first sewageinterception walls and second sewage interception walls are constructed along the riverbanks on the two sides of the second reaches; and connecting walls are constructed in the end positions of the first sewage interception walls and second sewage interception walls close to the first reaches. The system includes the riverbanks on the two sides of the second reaches, the first sewage interceptionwalls, the second sewage interception walls and the connecting walls; the first sewage interception walls, the second sewage interception walls and the connecting walls upward extend from the bottomof the river and are higher than the normal water level of reaches; the first sewage interception walls and the second sewage interception walls can separately form sewage collection channels with thecorresponding reaches; the sewage collection channels communicate with the first reaches; and part of riverways enclosed by the first sewage interception walls, the second sewage interception walls and the connecting walls on the second reaches can form water purification channels.