1266 results about "Flood control" patented technology

A bulk container and method suitable for forming an interlinked wall. In one embodiment, the bulk container may generally include sidewalls, lifting straps for transporting the container, and a closeable top. Linking loops may be provided on at least one sidewall which are each configured to be engaged by connecting members to link adjacent bulk containers together for forming an interlinked wall. In one embodiment, the connecting member is a belt which may be tensioned. Another possible embodiment includes a linking strap affixed to the sidewall panel and to which the linking loops may be attached or formed as an integral part thereof. A barrier wall system and method of forming the same from interlinked bulk containers is also provided. The barrier wall system is suitable for use in, but not limited to, shoreline erosion protection and flood control applications.

The invention discloses an analysis and evaluation method for inrush mountain torrent disasters of regions without data, and relates to the field of mountain torrent disaster analysis and evaluation. The method comprises the steps that the basic information of a project area is obtained; the landform, the river position form and the flood control current situation of an evaluated object are obtained; the catchment area and runoff components of the dike confluence drainage basin of each small watershed in the obtained evaluated object are determined; rainstorm parameter calculation, rainstorm calculation and concentration-time-based rainstorm time interval distribution of the evaluated object are obtained; flood calculation is designed, and the water level and flow relation of a riverway section, prone to inrush, of the evaluated object is obtained; the riverway flood control current situation in the evaluated object is determined, and accordingly danger zone grade division is conducted; and an early warning point is established, the early warning water level of the analyzed and evaluated object is determined, and the early warning index of the analyzed and evaluated object is formulated. According to the analysis and evaluation method, the inrush mountain torrents serves as the main analyzed and evaluated object, and a current riverway flood control current situation evaluation method and an early warning index analysis method are provided.

A flood control system, in one aspect involving providing a plurality of substantially rigid containers, at least some of the containers having a top portion, a bottom portion and substantially rigid sidewalls operably connecting the top and bottom portions, the sidewalls being configured to withstand compressive forces between the top portion and the bottom portion; and positioning the plurality of substantially rigid containers at a selected location proximate a body of water, at least some of the substantially rigid containers being positioned at the selected location in a substantially abutting relationship to form a barrier.

The invention discloses a method and a system for optimal scheduling on joint flood control for cascade reservoir groups. The method includes the steps of firstly, determining flood type according to real-time reservoir level and the process of forecasting runoff in case of flood; secondly, deciding a primary protection object according to the flood type and downstream control-point flood control standards; thirdly, automatically selecting flood control optimization objectives and corresponding optimization scheduling models in a system model base; and fourthly, solving and optimizing the optimization scheduling model by modified genetic algorithm. The method and the system dynamically judge the level of flood and finish hierarchical scheduling based on the level of flood. In addition, projection of downstream protection objects, dam safety and flood recycling are achieved by selecting proper optimization scheduling objectives according to comprehensive information of the reservoirs, such as regulation performance, scheduling period and reliability in forecast flood during hierarchical scheduling, efficiency in decisions for the reservoir groups is improved, and mass data statistics show that the decision efficiency is improved by about 30% by the method and the system.

The invention discloses a cascade reservoir combined flood scheduling optimization method coupled with flood control and power generation, which can coordinate flood control and power generation goals in flood scheduling, and adopt corresponding models for different standard floods, timely power generation pre-discharging and closing gates and staggered peaks, reducing flood seasons It is useless to abandon water to maximize the benefits of cascade reservoir flood control and power generation. The technical solution is: judge the level of the flood according to the real-time hydrometeorological information and flood forecast results. When the average inflow flow during the flood period is greater than the full flow of the power station, it will be judged as a major flood, otherwise it will be judged as a small flood; according to the different levels Different models are used to optimize the scheduling of different control objectives; under each different flow, constraint settings and control objectives, a number of different flood control schemes are obtained, which constitute a set of flood control schemes corresponding to a flood, as the basis for decision-making, if In the flood control scheme set, it is necessary to modify the inflow flow, so the simulated flood control calculation under various inflow conditions is repeated.

A basement flood control system for use in a structure having a basement floor located below ground level and having a sump pit or other collection basin for gathering subterranean water. The system has two primary pump units operated with line current, a battery-operated back-up pump unit, and a sensor arrangement for sensing water level in the collection basin. A controller is connected to the sensor arrangement and the pump units for variously activating the pump units singly or in any combination responsive to the water level detected by the sensor arrangement.

A modular flood control panel is provided having a base and supporting “A”-frame structure. The base locks into the ground, or supporting wall of sandbags, with a series of four adjustable angle stakes per each panel. The invention folds flat when not in use, for storage and for transportation on a truck to flood water areas. The panels are joined together with the use of a five inch wide joining slat that slides down into a channel on each side of each panel.

Techniques for controlling collection of diagnostic data in a monitored system. A set of flood control rules are configured for the monitored system for controlling the gathering of diagnostic data in the monitored system. The set of flood control rules may include one or more default flood control rules. The set of flood control rules are user-configurable enabling the user of the monitored system to set policies for dynamically controlling gathering of diagnostic data for the monitored system. In one embodiment, diagnostic data gathering is controlled based upon a number of previous occurrences of a condition in some predefined or user-configured time frame that triggers diagnostic data gathering and / or a number of previous executions of an action performed in some predefined or user-configured time frame responsive to the condition in the monitored system.

The invention discloses a foam flooding evaluation device and an evaluation method thereof. The foam flooding evaluation device comprises a foam generation device, a liquid supplying device, a rock core simulation device and a data acquisition system. The evaluation method using the foam flooding evaluation device comprises the following steps: carrying out saturated simulated stratum water pre-treatment on selected rock core models with different penetration rates, sequentially carrying out raw oil saturation, stratum water injection, foam injection and foam flooding; and controlling injection parameters in an injection process to obtain the rock core models aiming at the different penetration rates to obtain an optimal foam injection foam corresponding to the maximum raw oil recovery efficiency. The foam flooding evaluation device and the evaluation method thereof, disclosed by the invention, have a reliable working performance and a good simulation effect; the corresponding evaluation method can be used for researching recovery efficiency improving mechanisms including transferring and flooding control and the like of foam in a foam flooding process.

A hydrographic information automatically monitor in real time and the situation of a disaster prewarning and alarm system includes hydrographic information detection cell, incepts and processed the hydrographic information collection sent by the hydrographic information detection cell and process transmission cell, according to the situation of a disaster prewarning determination cell determined by the hydrographic information collection and process transmission cell and the situation of a disaster alarm long-distance distribution determined by the situation of a disaster prewarning determination cell and the monitor cell, incepts the said determination the situation of a disaster alarm incept and monitor cell, and the situation of a disaster alarm broadcast and situation detection cell which sends the alarm. The system can make each hydrographic monitor station reports the detected hydrographic information to the upper flood control and hydrographic chief department, so the determination department can realize the hydrographic information of each hydrographic monitor station effectively, makes timely determination and the situation of a disaster prewarning, sends the situation of a disaster alarm to the monitor area in time.

The invention relates to a real-time and efficient drainage basin flood routing visual simulation method. The method comprises the steps that grid control sections and nodes are acquired; a river regime fitted curve is determined; an encrypted section is generated; the grid control sections and the encrypted section are processed; a node grid is generated through interpolation; a digital riverway model is generated; section water level data is acquired; a section water level matched with the digital riverway terrain grid is generated through interpolation; submerging lines of a single riverway or tree-shaped river network or annular river network are determined; the topological relation between the riverway submerging lines is built; an inundated area is determined; riverway water flow routing visual display is carried out. According to the method, the flood routing condition of a drainage basin can be displayed efficiently in real time, a continuously changing flood inundation layer can be created, the local or full-area inundated area is stereoscopically observed according to the elevation of the water surface, the superficial area and water storage of flood water surface inundation at a certain elevation can be calculated in real time for a local flood inundation region, the method directly serves drainage basin flood control and disaster reduction, and important theoretical and practical significance is achieved on disaster reduction capacity improving.

The invention discloses a movable water retaining dam for a water conservancy landscape. The movable water retaining dam comprises a dam foundation, movable dam faces, bottom rotating shafts, foundation embedded fixing seats, hydraulic cylinders, hydraulic pump stations and water retaining height control devices, wherein the foundation embedded fixing seats are mounted on the dam foundation; the bottom rotating shafts are mounted on the foundation embedded fixing seats; the movable dam faces are fixedly connected to the bottom rotating shafts; the movable dam faces can rotate around the bottom rotating shafts; one end of each hydraulic cylinder is movably connected with the back side of one movable dam face, and the other end of each hydraulic cylinder is movably connected with one foundation embedded fixing seat; and the hydraulic cylinders are connected with the hydraulic pump stations which are connected with the water retaining height control devices. The movable water retaining dam is reasonable in structure, firm, reliable and high in flood impact resistance, is not influenced by floating impurities, is not limited by width of a river, is not prone to retain the floating impurities, can be controlled automatically and can be ascended and descended rapidly, the dam can be descended for draining off floodwater without a battery, and flood control safety is realized.

The invention discloses a river ecological flow maintenance-orientated reservoir optimizing and dispatching method, which comprises the following steps of: diving influx flow of a reservoir into four intervals according to the magnitude of the flow, diving the storage capacity of the reservoir into four intervals by using an upper dispatching curve, a lower dispatching curve and a dead storage curve, and formulating different water supply and letdown rules when the influx is in different flow intervals and the water level is positioned in different storage capacity intervals. When the flow is positioned in the interval containing flat shoal flow, the influx flow is totally used for meeting river ecological flow after meeting the water supply requirement; when the influx is positioned in the minimum flow interval, the reservoir reduces letdown to maintain river low-water ecological pulse; and when the water level is positioned in the interval above the upper dispatching curve, the reservoir enlarges the letdown to ensure the flood control function. The method also comprises the following steps of: quantizing a target value of dispatching by adopting a variable range method to meet the constrained planned water supply reliability, and simultaneously optimizing parameters in the dispatching rule by using a genetic algorithm to acquire optimal dispatching parameters under the condition of meeting the planned reliability.

A water-fillable flood control device is provided that consists of a waterproof bag with a friction causing outer surface and having a mouth that can be closed with a waterproof seal after filling the bag with water. The bag can be filled by one person at a flood site using a filling / form sleeve and locally-available water. It is not necessary to fill the bag with sand, or add chemicals. The friction causing surface may be achieved by any means or method so long as the purpose is to hold the device in place for facilitating the stacking of a plurality of devices on top of each other to form a stable water control structure without the need for external supports.

The invention discloses a stereoscopic ecological corridor system and method for in-situ remediation of a riverway water body. The system comprises an intercepting unit, a preprocessing unit, a wetland unit, a greening filtration unit, a back-flushing unit, a drainage unit and a plant control unit. According to the system and the method disclosed by the invention, technical problems that an existing artificial wetland needs intermittent operation and filler blockage highly possibly occurs after long-term operation are effectively solved; a treatment effect and impact load resistance of the entire system are improved, and an occupied area is reduced; and meanwhile the system has a flood control function. In addition, a complete ecological purification system formed through various optimization technologies realizes organic integration of riverway water environment improvement and water ecological remediation. The system has advantages of being small in occupied area, realizing in-situ treatment in a riverway, free from influence on a drainage demand, good in treatment effect, strong in capacity of removing nitrogen and phosphor, strong in adaptability to impact load, free from mosquitoes and flies, convenient in operation and maintenance management, etc., and is suitable for treating riverways contaminated by domestic sewage and industrial wastewater.

The invention discloses a project scheduling and tidal river network pollutant transport process coupled numerical value simulation method. The method comprises the following steps of: establishing a tidal river network one-dimensional hydrodynamic force-water quality model; establishing a project application model to realize accurate and quantitative description of a project type and an application manner; solving the tidal river network one-dimensional hydrodynamic force-water quality model and the project application model by adoption of a finite difference format and a four-cascade solution; and establishing a gate pump group multi-target optimal scheduling model through aiming at targets of flood control, flood drainage and water quality improvement and project constraint conditions. According to the method disclosed by the invention, the accurate and quantitative description of interaction of a hydrodynamic process, a pollutant transport process and project scheduling is realized; and on the basis of simulating the project scheduling, the established gate pump group multi-target optimal scheduling model is utilized to obtain a gate pump group combined optimal scheduling scheme, so that the practical application value of the project scheduling simulation can be remarkably improved.

The invention relates to a flood combined probability analysis method and an application thereof based on Copula. The flood analysis method is aimed at providing a flood control construction basis for tidal river reach, and mirroring functions of affecting overflowing of flood facilities and characteristic quantity of regulation and storage capacity through creation of a joint probability distribution function about sea level, rainfall peak and subrainfall so that reliable basis is provided for anti-flood construction.

An emergency flood control apparatus is described that includes a row of a plurality of vertically separated cells horizontally arranged formed between at least two continuous sheets of impermeable flexible material, a continuous horizontal tube formed between the sheets and disposed at an end of the cells, and a plurality of necks disposed perpendicularly between the tube and the cells, the necks connecting each of the cells to the horizontal tube in a manner such that the cells may be filled with fluid from the tube at substantially the same time.

A sectionalized flood control barrier (10) for mounting on top of a levee or a river bank to prevent flooding. The barrier (10) consists of a footing (20) with a series of support channels (24) that are butted end to end attached to the footing. The support shells are sealed watertight at the interface with each other and also to the footing. A series of primary channel bridge assemblies (32) and secondary channel assemblies (46) are disposed within the support channels (24) and are also butted end to end. Wind protectors (60) contiguously engage each support channel (24) and rest upon the footing for diverting the wind over the barrier. Stepped fastening risers (62) are attached to the footing on each end and over the channel assemblies, and wind protectors hold them securely in place.

The invention discloses a quantitative estimation method of monthly-scale evapotranspiration, which comprises the following steps: collecting hydrometeorological data in a river basin and adjusting all the data to monthly-scale; contructing the multivariate linear equation of land water storage change data, and performing spatial downscaling and filtering on the GRACE gravity satellite retrieved land water storage change data. The monthly series of actual evapotranspiration in each sub-watershed areobtained, and the trend of seasonal hydrological and climatic change and the characteristics ofspatial and temporal evolution in typical watershed are analyzed. The Budyko water-heat coupling equilibrium equation is optimized, and the quantitative estimation model of monthly actual evapotranspiration is established by using the change of land water reserves. The actual evapotranspiration parameters of monthly scale watershed are estimated quantitatively, and the monthly global evapotranspiration series are calculated according to the calibrated model parameters. The invention enriches the estimation method of river basin evapotranspiration, publishes the monthly value sequence of evapotranspiration with high spatial resolution, and provides scientific basis for scientific research and production work such as flood control and drought resistance.

The invention discloses a gabion box ecological gabion river channel slope protection construction method. The gabion box ecological gabion river channel slope protection construction method is mainly characterized in that the defect that only the flood control function, the water diversion function, the drainage function, the impoundment function, the shipping function and the like of a river channel are often considered according to a traditional river channel slope protection structure, and the ecological function of the river channel is rarely considered is overcome. The gabion box ecological gabion river channel slope protection construction method includes the following steps that a cofferdam is constructed, a worktable is arranged, and a footing construction period is carried out; after gabion slope protection construction is over, gaps between surface course dimension stone are recharged with soil and watered, it is ensured that the gaps of dimension stone are filled with soil, and a dimension stone slope is covered by a layer of cultivating and planting soil; aquatic plants are planted underwater, and a lawn is planted on a bank of the river channel. According to a construction technology, water, cement and a formwork are not needed, and construction is convenient. The gaps between building stone can be manually or naturally filled with mud on earth, root systems of the plants can be deeply pricked into the slope through the mud between the building stone, so that engineering measures are combined with vegetation measures, and a soft overall protection face is formed. The requirements for water and soil conservation and environment greening are met, and therefore the original ecological environment is recovered.

The invention discloses a Yellow River upstream cascade reservoir flood control scheduling method considering early warning. The Yellow River upstream cascade reservoir flood control scheduling methodis characterized by comprising the following steps that 1, a Yellow River upstream cascade reservoir flood control early-warning system is established; 2, a cascade reservoir flood control schedulingmodel based on the early-warning system established in the step 1 is established; 3, optimizing calculation is conducted on the flood control scheduling model established in the step 2, and a scheduling result and an optimal early-warning decision are output. The Yellow River upstream cascade reservoir flood control scheduling method considering early warning combines with the cascade reservoir united flood control scheduling model to assess the flood control risk degrees of a reservoir and a downstream protective object and determine the comprehensive risk degree and flood control early-warning level, future time period prediction information is utilized to formulate a reasonable and effective early-warning strategy, and the flood control early-warning system suitable for a Yellow Riverupstream cascade reservoir group is established.

The invention discloses a method and system for real-time automatic distribution of gate opening of a cascade hydropower station. The system includes a collection terminal, database server, application server, process library, policy library, information publishing cat, and remote control system, a collection element, transmission element, simulation element, and constraint element are arranged onthe application server and are connected with the database server, process library and information publishing cat. The invention can adjust the gate in advance, at the same time, the opening degree of each gate of the preset dispatching strategy is given by using the subsection step-size mutation algorithm, In addition to real-time monitoring of reservoir water level, effectively shorten the timeof making gate opening, A good balance has been struck between flood control and flood resource utilization, In order to reduce the working intensity of the operators and accurately control the waterlevel of the reservoir, the calculation process is simple and quick, and the follow-up effect of cascade flood control storage capacity under different flood discharge is taken into account, so as tomeet the needs of the actual operation of the power station for the calculation result accuracy, safety, real-time performance and economy.

The present invention comprises an apparatus that is designed to hold back flood waters via a series of interconnected long flexible tubular units. Each unit is connected to each other via a sleeve and has a weighted flap portion for additional anchoring. Each unit has its own fill tube and drain plug and is designed to retain water or other liquid to provide an impervious water barrier when in deployment.

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 real-time measuring system for a flood-controlling physical model testing surface flow-field in the water conservancy measuring technology field and a post-processing method thereof. The system and the method comprise technical scheme that the real-time measuring system for the flood-controlling physical model testing surface flow-field comprises an image acquiring module, an image management module, a flow-field calculating and post-processing module and a data fetching module. The post-processing method for the flood-controlling physical model testing surface flow-field comprises the steps as follows: tracer particles are evenly sprinkled on a water flow surface and are led to move along with the water flow; a vidicon is installed above the surface flow-field, and external synchronization can be realized through a videofrequency synchronizer; particle motion image signals are transmitted to a computer image grabbing card through a video line for analysis and treatment; and the flow velocity and the flow state of the flow-field are obtained. The real-time measuring system and the post-processing method thereof increase the velocity of flow velocity vector matching calculation, and lead the automation degree for removing error flow velocity vectors to be increased greatly.

The invention discloses a multi-variable flood recurrence period calculating method considering reservoir flood routing calculation. The method is characterized in that symbolic regression is carried out to calculate an explicit representation through genetic programming; a joint probability density function is calculated through a Copula function; then the joint probability density function is subjected to integral operation in a safe area to obtain cumulative probability of the specified annular maximum water level, and finally single-variable recurrence period of the specified annular maximum water level can be calculated as the multi-variable flood recurrence period under the consideration of the reservoir flood routing calculation. According to the method, the reservoir flood routing calculation is considered; a dangerous area is defined based on the annular maximum water level isoline, and thus the hydrological failure mechanism of a reservoir dam can be accurately expressed; the method is applicable to flood dispatching rules at any complexity degree, and scientific and reasonable basis can be provided to the flood control safety design of a reservoir.

The invention discloses an urban flood control early warning and forecasting system. The urban flood control early warning and forecasting system comprises a water quantity detecting component, a radar rainfall detecting component, a main control module and an early warning module. The water quantity detecting component is arranged in an urban drainage system to detect the water quantity information of each drainage node. The radar rainfall detecting component predicts the future rainfall information. The main control module is connected with the radar rainfall detecting component and the water quantity detecting component to receive the future rainfall information and the water quantity information and analyze and process the information. The main control module is connected to the earlywarning module so as to control the early warning module to predict the flood situation according to the processing result. The urban flood control early warning and forecasting system can analyze theflood situation by predicting the future rainfall information before the flood occurs, can announce the flood situation through the early warning module so as to allow staff and citizens to have enough time for response and emergency treatment, and can greatly reduces the impact of disasters.

The invention relates to a porous concrete ecological capsule slop protection process, which comprises making ecological capsules which are braided by fiber material such as palm ropes and twines and the like, storing doras, water-retention material, slow-release fertilizer, insecticide and plant seeds, placing the ecological capsules in the grooves of the porous concrete ecological capsule blocks, matching an upper and a lower porous concrete ecological capsule blocks through the way of bolt or direct binding, placing the porous concrete ecological capsule blocks on hard slope protection, connecting each porous concrete ecological capsule block with bolts or jump rings, and binding the space between the porous concrete ecological capsule blocks with cement and wholly hinging on the top portion of the slop protection. The advantages are that solving the difficulty of the ecological repair of the hard slop protection, guaranteeing the normal growth of plants which are covered on the hard slop protection, and purifying water and increasing water landscape. The process is applied on the hard slop protection project of river and lakes, which solves the problems of plant growing stroma loss which is caused by scouring, plant growing difficulty and reducing flood control function which is caused by the improper reconstruction for the original slop protection.