17 results about "Dam Collapse" patented technology

The present invention relates to the technical field of disaster prevention and reduction, and in particular to a method for predicting peak flow of moraine dam burst considering the influence of buried ice. The prediction method uses ice content, ice melting degree, and ice particle size as buried ice parameters that characterize the influence of buried ice on the peak flow of moraine dam burst, and uses them as one of the variables affecting the moraine dam burst flow to study, thereby optimizing the moraine dam burst peak flow prediction model, improving the model prediction accuracy, and filling the gap in the prediction method of the peak flow of moraine dam burst containing ice.

The invention discloses a risk and benefit balanced reservoir seasonal flood season water level multi-objective decision control method, and particularly relates to the technical field of data management. A genetic algorithm and a support vector machine are introduced to carry out multi-generation optimization and nonlinear regression model training, a water level change trend and an optimal water discharge amount are respectively predicted to serve as input variables of a fuzzy control system, and a final continuous control amount is calculated by adopting a weighted fusion algorithm. The matching degree between the control command and the equipment is evaluated according to the equipment response delay and the discretization precision; and if the matching degree is low, the system dynamically adjusts the discretization rule and the drainage strategy, and performs accurate butt joint with the equipment through the optimized control command, so that the accuracy and efficiency of reservoir management are improved, the dam break risk is reduced, and the drainage operation of the reservoir is optimized.

The invention relates to the technical field of refuse landfill flexible dam construction, and discloses a refuse landfill flexible dam construction method based on gravel ton bag anchoring. Comprising the steps of site investigation and cleaning, anti-sliding tooth construction, ton bag preassembling and transporting, ton bag stepped stacking, layered filling, drainage ditch and anti-seepage film connection, seepage guide pipe installation, gas drainage guide pipe connection and quality detection and repair. By means of the construction method, lateral thrust of garbage heaps or debris flow impact can be effectively resisted, the dam break risk is avoided, the impact resistance of the dam is improved, and the safety of the dam body is improved.

The present invention discloses a method for horizontal drilling, traction and laying of hollow pipes for disposal of landslide dams. The drilling and laying pipe device includes a head non-excavation directional drill bit, a rear connection reamer and control equipment, and a hollow pipe traction connector. After a landslide blocking a river and a landslide lake disaster occurs, the device is used to quickly drill horizontally in a loose accumulation body and simultaneously traction and bury the hollow pipe. When the water level rises to the elevation of the pipe mouth, the control valve at the end of the hollow pipe is opened and closed cyclically, and the landslide dam is caused to slide back to the source step by step through penetration damage, and finally the landslide dam body is automatically dismantled. Compared with the existing emergency treatment technology for landslide dam disasters, the method of the present invention has rapid construction, simple operation, and resource conservation. It can respond quickly when a landslide blocking a river disaster occurs, and while controlling the risk of dam collapse, it can gradually dismantle the landslide dam with the help of the natural force of water to ensure the safety of the upstream and downstream of the valley.

The utility model relates to a dam collapse prevention reinforcing device for water conservancy construction, and belongs to the technical field of water conservancy dams. The technical scheme mainly solves the problem that time and labor are wasted due to the fact that a reinforcing partition plate beside needs to be detached when a damaged reinforcing partition plate is replaced. Comprising a reinforcing partition plate body, a first connecting block and a second connecting block are fixedly connected to the two sides of the reinforcing partition plate body respectively, through holes are formed in the surface of the first connecting block and the surface of the second connecting block, and a connecting mechanism is installed over the first connecting block and the second connecting block. Through cooperation of the first connecting block, the second connecting block, the through hole and the connecting mechanism, the reinforcing partition plate can be independently installed, through the arrangement of the mode, it is achieved that when a damaged reinforcing partition plate is replaced, the reinforcing partition plate beside does not need to be detached, and the replacement efficiency is improved. The problem that time and labor are wasted due to the fact that the adjacent reinforcing partition plates need to be detached when damaged reinforcing partition plates are replaced is solved, and construction difficulty of the reinforcing device is further lowered.

The application provides a honeycomb trapezoidal riprap frame for a seawall structure and a construction method, and relates to the field of water conservancy projects. The honeycomb trapezoidal riprap frame is composed of a plurality of diamond modules, support columns and small ripraps to form a trapezoidal slope protection structure. The plurality of diamond modules are arranged in an alternating and staggered manner. The adjacent diamond modules are connected by the support columns. The diamond modules are filled with small ripraps. The diamond module includes a diamond block body. A semicircular groove in a semicircular shape is arranged on each of the four corners of the diamond block body. The semicircular grooves of the adjacent two diamond block bodies can completely wrap the support column. A clamping groove is vertically arranged at the middle position of the upper and lower surfaces of the four edges of the diamond block body. The honeycomb trapezoidal riprap frame limits the small ripraps to prevent the small ripraps from being washed away by the tidal current and causing piping and other risks. At the same time, the load stress of the small ripraps is dispersed in block form to each diamond module, which greatly improves the stability of the seawall and reduces the risk of dam collapse.

The invention relates to the technical field of earth-rock dam failure analysis, and discloses an earth-rock dam failure analysis method under the action of earthquake and flood, comprising the following steps: step S101, dividing the earth-rock dam to be monitored into M areas to be monitored; step S102, collecting vibration signal data, hydrological data and dam body data of each area to be monitored, and generating a comprehensive feature matrix; step S103, inputting the comprehensive feature matrix into an earth-rock dam risk prediction model, and the output value represents the dam failure risk score of the earth-rock dam to be monitored; step S104, taking corresponding early warning measures according to the dam failure risk score; the invention comprehensively considers the influence of the vibration characteristics of seismic waves, the hydrological characteristics of the earth-rock dam and the dam body structure characteristics on the earth-rock dam in time and space through the earth-rock dam risk prediction model, and obtains the stress condition of the earth-rock dam failure in the whole life cycle with the help of finite element analysis software, so as to improve the accuracy of the earth-rock dam failure risk prediction.

The application discloses a dam seepage drainage and reinforcement method for a tailing pond, which comprises a reinforcement part and a seepage drainage part; the reinforcement part and the seepage drainage part are arranged on two sides of an initial dam respectively; the reinforcement part is arranged on the inner side and the outer side of the initial dam to reinforce the initial dam, so as to improve the upper limit of the bearing water pressure and the upper limit of the accumulated dam pressure; the seepage drainage part is arranged on the outer side of the initial dam to reinforce the outer side of the initial dam and improve the seepage drainage effect of the initial dam. The initial dam is improved by the reinforcement part and the seepage drainage part. When the tailing pond is filled with water, the water pressure generated by the rising water level and the accumulated dam pressure generated by the tailing slag accumulation will generate pressure on the initial dam. The reinforcement part can effectively improve the upper limit of the bearing water pressure and the upper limit of the accumulated dam pressure. After the water storage, in addition to the seepage drainage of the initial dam, the seepage drainage part arranged on the outer side can also assist in the seepage drainage, so as to relieve the pressure of the initial dam, improve the seepage drainage efficiency and reduce the risk of dam collapse.

This invention belongs to the field of geological engineering and natural disaster simulation technology, and relates to an experimental device and method for simulating the disaster chain from a high-altitude, long-distance landslide in a cold region to a flood. The device includes a support mechanism, an acceleration mechanism, a loading vehicle, a motion mechanism, a freezing mechanism, a water tank, a water spraying mechanism, and a monitoring mechanism. The freezing and water spraying mechanisms simulate the low temperature and rainfall environment of a cold region; the acceleration mechanism drives the loading vehicle to simulate the initiation of a high-altitude landslide; the landslide mass scrapes and encases moist frozen soil samples in the motion mechanism, evolving into a debris flow under continuous water spraying; the debris flow rushes into the water tank and accumulates to form a simulated landslide dam, simulating the process of blocking a river; subsequently, under the action of upstream water, the dam collapses, triggering a simulated downstream flood. This invention can simulate and monitor the entire disaster chain of a high-altitude, long-distance landslide in a cold region – debris flow – river blockage – flood, providing an effective physical simulation technology for disaster risk assessment and prevention.

The invention discloses an overtopping and overflowing earth and rockfill dam and a design, construction and operation method thereof. The overtopping and overflowing earth and rockfill dam comprises an earth and rockfill dam body, and an anti-scouring structure layer is arranged on the downstream face and / or the dam top of the earth and rockfill dam body; the anti-scouring structure layer adopts a net-hanging sprayed concrete layer or a reinforced concrete layer or a fiber concrete layer; the anti-scouring structure layer is arranged on the earth and rockfill dam, so that the safety risk of dam break and collapse of the earth and rockfill dam is eliminated, the reservoir capacity does not need to be emptied in advance for flood control in the flood season, the reservoir can be prevented from running at low water level throughout the year due to insufficient water storage, the flood control pressure is reduced, and the benefit-making reservoir capacity is greatly expanded; benefits such as agricultural irrigation, water supply and power generation are fully exerted, and high-quality development of the water conservancy career is promoted.

The application provides a dam-break-preventing water flow regulating system for a barrier lake, which comprises an M river and a T river, a dam is arranged at the downstream of the M river, a water regulating open channel is arranged between the M river and the T river, the water regulating open channel is arranged at an altitude between the M river and the T river, a reinforced concrete water regulating tunnel and a pressure steel pipe are further arranged, the two ends of the reinforced concrete water regulating tunnel are respectively connected with the M river and the water regulating open channel, the two ends of the pressure steel pipe are respectively connected with the water regulating open channel and the T river, and a water inlet working gate system and a water outlet working gate system are further arranged at the two ends of the reinforced concrete water regulating tunnel, so that the problem that the barrier lake formed by the earthquake has no drainage outlet and the barrier dam collapses is solved.

The utility model provides a slope anti-collapse slope structure, which is characterized in that a drainage channel is arranged at the slope toe of a seepage-stopping dam and horizontally extends along the extension direction of the seepage-stopping dam, and rock blocks are accumulated in the drainage channel and at the slope toe; the steps are arranged on the slope surface of the seepage interception dam and horizontally extend in the extending direction of the seepage interception dam; a plurality of soil engineering bags are laid along the slope surface and the steps of the seepage interception dam to form a soil engineering bag layer; drainage pipes are arranged in the seepage interception dam, one ends of the multiple drainage pipes are diverged in a fan shape, and the other ends of the multiple drainage pipes penetrate through the slope face of the seepage interception dam and stretch out of the geotechnical bag layer. The slope surface of the seepage interception dam is protected through the soil engineering bags, seepage water in the seepage interception dam is drained and guided in combination with the drainage pipe, the drainage efficiency of the seepage interception dam is remarkably improved, and therefore the seepage pressure in the seepage interception dam is reduced, and the possibility that the slope of the seepage interception dam collapses is reduced.

The invention discloses a dam burst dam body material design method, which comprises the following steps of: acquiring sand material data graded and paired with a burst dam body material, and preprocessing the sand material data; controlling the water content of the sand material data to obtain regulation and control data, and carrying out a dam body building simulation test according to the regulation and control data; and configuring a damming material according to the sediment transportation strength by adopting a similar proportion, and outputting a dam body material. The method not only can improve the design precision of the dam burst dam body material of the barrier dam, but also has better interpretability, and can be directly applied to a system for designing the dam burst dam body material of the barrier dam.

The present invention discloses a dam-break prevention and control flow disturbance pile test device, which belongs to the field of simulation test technology, including a test operation table, a circulation pool is arranged at one end of the test operation table, a test tank is connected to the end of the circulation pool through a sealing connector, a test unit is arranged in the test tank, a constant pressure water storage chamber is arranged at the end of the test tank, a constant flow outlet is opened on the side wall of the constant pressure water storage chamber facing the test tank, and the constant pressure water storage chamber is connected to the circulation pool through a water circulation component. The present invention uses a water flow disturbance display component arranged in front of the flow disturbance pile to color mark the water flow, so as to explore the influence of different shapes of flow disturbance piles on the flow route of the water flow, and the flow intensity of the water flow at different positions under the action of the flow disturbance pile can be detected by a mobile measuring component and a fixed measuring component, and the calculation data of the influence of the flow disturbance pile on the water flow intensity is obtained, and the influence of the flow disturbance pile on the stability of the dam body is verified by means of experiments and numerical simulations.

The application relates to the technical field of dam detection devices, and discloses a dam collapse detection device and a detection method, which comprise a dam body assembly, a detection sleeve assembly is inserted into the dam body assembly, a fixed frame is fixedly installed in the dam body assembly, a permeation driving assembly is fixedly installed on the fixed frame, and an inner transmission assembly is installed in the detection sleeve assembly. The dam collapse detection device and the detection method are characterized in that a plurality of detection sleeve assemblies are uniformly inserted into the dam body assembly, the inner transmission assembly is movably arranged in the detection sleeve assembly, when internal local leakage occurs in the dam body assembly, water from the leakage enters the detection sleeve assembly, and then the permeation driving assembly is started to rotate, so that the lower pulling block is driven to move, and then the plugging assembly is pulled and rotated to the water-impingement surface of the side surface of the dam body assembly, thereby embodying the automatic protection effect of the detection device.

The utility model discloses an earth dam flooding demonstration device comprising a pedestal, the top of the pedestal is fixedly provided with a demonstration box, a detection assembly, a water tank and a water pump, the water outlet end of the water tank is communicated with a water adding pipe, and the water outlet end of the water adding pipe is communicated with a flow valve. The flow valve is fixedly installed at the bottom of the right side of the demonstration box and communicates with an inner cavity of the demonstration box. The detection assembly comprises a supporting rod, the bottom of the supporting rod is fixedly connected with the top of the base, and the top of the supporting rod is fixedly connected with a fixing frame. The device has the advantage of being convenient to detect, and solves the problems that in the using process of an existing earth dam flooding demonstration device, the water level, the earth dam height and the earth dam collapse displacement degree are not convenient to detect, the uncertainty and error increase of experimental results are caused, accurate data support is lacked, and the experimental efficiency is high. And deep quantitative analysis on the research on the stability, the flooding process and the final dam break mechanism of the earth dam is difficult to carry out.

The invention provides an operation method of a hydraulic dam group for controlling a riverbed to greatly scour and deposit in a compound channel, which comprises the following steps of: alternately adopting a dynamic operation mode of dam collapse in a flood season, dam lifting in a non-flood season, dam lifting in a main channel and dam collapse in a beach land on the interyear by combining the interannual deposition characteristic and hydrological cycle of channel silt, and establishing a graded dredging mechanism at the same time; and regular monitoring and desilting are conducted on the upstream reach of the hydraulic dam located on the upstream, and normalized maintenance and desilting are conducted on the surface of the hydraulic dam structure. According to the running mode of dam collapse in the annual flood season and dam rising in the non-flood season, water conservation in the non-flood season with relative water shortage can be guaranteed, manual intervention is not adopted in the flood season with relatively abundant water, flood discharge and sand flushing of the riverway are relatively natural, it is guaranteed that the annual water amount of the riverway is considerable, and the water quality of the riverway is improved. A natural means is utilized to ensure that riverbed siltation is not excessively developed; the running mode of the full-year main groove dam rising and beach land dam collapse ensures that the water source is reserved in the flat water year or the dry water year, and meanwhile, the easily-deposited beach land part is subjected to water flushing. By adopting the hydraulic dam group operation mode provided by the invention, great erosion and deposition of a riverbed can be relieved.