46 results about "Check dam" patented technology

The invention discloses an ecological management method for an eroded gully in a high and cold wet steppe area, which comprises the following steps: firstly, cleaning sundries in the eroded gully, and then performing slope cutting treatment on the gully bottom and gully slope of the eroded gully; pine piles or gabion protection feet are arranged at the bottom of a ditch slope of the erosion ditch; gabion check dams and / or raft pile dams are arranged in the extending direction of the channel of the erosion gully at intervals; vegetation is planted on a ditch slope of the erosion ditch, and an ecological intercepting ditch is formed in the top of the ditch slope; the comprehensive protection system is constructed through the measures of the channel stepped gabion check dam, the log raft piles, the channel slope stabilizing structure, the ecological revetment, soil protection, vegetation recovery and the like, extension and expansion of the erosion gabion are prevented, the stable state of the gabion bank is kept, ecological balance is promoted through vegetation recovery, the anti-scouring, stability and ecological function of the erosion gabion bank are enhanced, and the ecological protection effect of the erosion gabion bank is improved. The problems existing in the prior art are solved, and the purpose of long-term effective ecological treatment of the erosion gully is achieved.

The invention relates to the technical field of intelligent water conservancy and automatic control, in particular to a polder area multi-station water conservancy data real-time collection and intelligent fusion processing method and system, and the method comprises the steps: a multi-dimensional collection system construction step: collecting time sequence state, fluid field and environment boundary data, and executing time base unified cleaning; an ideal model construction step: constructing an ideal water tank model based on the law of conservation of mass and generating an ideal water level change curve; a parameter injection simulation step: generating a simulation fault water level curve according to injection efficiency attenuation and medium leakage parameters; a double-track difference calculation step: respectively carrying out difference on actual measurement and simulation data and an ideal curve to generate real and theoretical residual vectors; a similarity judgment and control step: calculating sequence similarity to judge a real physical fault or sensor data noise, and generating a fusion control instruction; according to the invention, the technical problem of distinguishing the noise of the sensor from the real physical fault is effectively solved, and false alarm or missing alarm is avoided.

The utility model belongs to the technical field of channel protection, and discloses a check dam group ecological protection structure which comprises a concrete check dam, a main channel, a plurality of branch channels and a plurality of gabion check dams. The concrete check dam is arranged at the downstream tail end of the main channel and used for intercepting silt, and the main channel is formed by gathering the downstream sides of a plurality of branch channels; a plurality of gabion check dams are arranged on each branch channel, are sequentially arranged in the direction from the upstream to the downstream of the branch channel and are used for slowing down silt loss / discharge section by section and reducing the harm of debris flow to the downstream. The check dam group protection structure is combined with a gabion check dam and a concrete check dam, is used for carrying out sediment retaining on channels with more branch channels and more material sources, and has the advantages of being wide in adaptability, long in durability and high in sediment retaining capacity compared with a check dam group of a single type. Meanwhile, the gabion net cage formed by weaving the PE plastic-coated steel wires has the characteristics of high corrosion resistance and high durability of the whole check dam structure.

The present invention discloses a distributed flood simulation method for the Loess Plateau with spatiotemporal differentiation of runoff patterns, which belongs to the technical field of model building methods, including constructing a technical framework for identifying spatiotemporal differentiation of runoff patterns, improving plant interception modules, infiltration modules, evapotranspiration modules, silt dam / terrace modules, coupling grid water droplet confluence methods and deep learning confluence calculations, and improving the model in combination with variable parameter theory and experience. Based on the mechanism of the influence of changing environment on the process of rainstorm runoff, the present invention further reveals the spatiotemporal analysis characteristics of runoff patterns on the Loess Plateau under a changing environment, combines deep learning theory, constructs a distributed flood simulation model that couples spatiotemporal differentiation of runoff patterns and deep learning theory, and performs confluence calculations of the model through grid water droplet confluence methods and deep learning theory; finally, in combination with variable parameter theory and experience, improves the parameter module of the model to realize the function of transforming model parameters from static to dynamic.

The utility model discloses a passive blocking and protecting structure for ditch source collapse rolling stones, which comprises a multi-stage blocking structure arranged in a ditch and a buffer percolation structure arranged on the inner side of the blocking structure, the blocking structure further comprises a sheet-pile wall and a gravity type check dam, the sheet-pile wall is arranged at the lower part or the tail end of the ditch source collapse of the ditch, and the gravity type check dam is arranged on the lower part or the tail end of the ditch source collapse of the ditch. A multi-stage gravity type check dam is distributed in the channel on the front side of the sheet-pile wall; the blocking structure can be completely arranged to be a sheet-pile wall or a gravity type check dam. The blocking structure can be alternately provided with sheet-pile walls and gravity type check dam dams according to terrains; the buffering percolation structure further comprises a buffering layer, a rockfall groove and a percolation structure. Through the design of the blocking structure, the buffer layer and the percolation structure, the purposes of blocking rolling stones, draining ditch water and effectively preventing the ditch source from collapsing the rolling stones can be achieved.

The present application relates to a kind of mudslide dam based on the quick design method of motion energy analysis, comprising the following steps: step S1: according to the situation of geological exploration, preliminary selection n dam arrangement position, corresponding n kinds of working conditions, subsequent analysis is carried out according to each working condition;Step S2: the motion process of mudslide is simulated using SPH method, flexible disaster mitigation measures are applied, and the retarding effect of dam on mudslide is simulated using virtual wall particle;Step S3: calculate the impact characteristic parameter of mudslide, including the impact time Δ t Of leading head, impact average speed, the length L Of leading head, the volume Vol head Of leading head, impact load size Load impact ;Step S4: calculate the design characteristic parameter of dam, obtain the cross section design characteristic parameter of dam under different downstream slope, including dam height H , dam top length L T , dam top width W T , dam bottom length L B And dam bottom width W B This method can realize the quick design of dam characteristic size.

The invention discloses a debris flow silt arrester disaster prevention benefit evaluation method, and the method comprises the steps: constructing a hierarchical evaluation system which faces a future operation state and can integrate landform shape constraints, reservoir capacity operation conditions and a safety risk state on the premise of not remarkably increasing the data acquisition cost; according to the invention, an integrated technology of AHP weighting, two-level fuzzy synthesis and maximum membership level judgment is provided; wherein a calculation framework based on threshold determination and piecewise linear membership functions, qualitative index feature vector assignment, penalty mapping of interval optimal indexes and two-stage fuzzy comprehensive evaluation jointly form core features of the method; the weight is determined based on the analytic hierarchy process, the consistency check is passed, the two-stage fuzzy comprehensive evaluation and the maximum membership principle are further adopted to output the levels of'excellent, good, medium and poor ', and a quantitative basis is provided for inspection and maintenance of the silt arrester, desilting modification and risk grading management and control.

The invention discloses a method for treating a small erosion gully by using a simple check dam, which comprises the following steps: selecting a small erosion gully to be treated, arranging check dam intervals according to the gradient of the small erosion gully to be treated and the height of the lowest point of the check dam, then removing sundries, and building the check dam; wherein the gradient change ranges from 0 degree to 5 degrees, the height of the lowest point of the check dam ranges from 15 cm to 50 cm, and the distance between the check dams ranges from 5 m to 24 m. The method has the advantages of simplicity, convenience, feasibility, low cost, easiness in popularization and application, capability of improving the availability of the degraded cultivated land and the like.

The utility model relates to a three-purpose underwater construction system for a diversion cofferdam construction platform, which belongs to the technical field of diversion cofferdam construction and comprises two river banks, two U-shaped frames are arranged between the two river banks, a plurality of cylinders are fixedly mounted at the top ends of the U-shaped frames, piston rods of the cylinders are fixedly connected with hooks, and a portable retaining dam is arranged at the bottom ends of the U-shaped frames. The portable retaining dam has the advantages that a river channel between two river banks can be blocked through the portable retaining dam, so that the water flow velocity of the river channel is slowed down, an important buffering effect is achieved, the portable retaining dam has the advantages of being easy to arrange, convenient and fast to remove, capable of being turned and reused and the like, the pipe grooves are excavated in the river banks, and the pipe grooves are convenient to carry. When a cofferdam construction platform is constructed, part of river water flows out through the flow guide pipes to share the flow guide pressure of the portable retaining dam, so that the cofferdam construction water flow impact force can be further reduced, the cofferdam construction platform can be better constructed, and the cofferdam stability is improved.

This invention discloses a silt-retaining dam structure based on 3D printing and extrusion modules, comprising a stepped dam body, a 3D-printed protective shell, a spillway energy dissipation system, and a surface reinforcement layer. The stepped dam body is assembled from prefabricated loess-based extrusion modules using a mortise and tenon structure, with each layer dry-laid layer by layer from bottom to top in a staggered pattern, the width of each layer decreasing with increasing height. The spillway energy dissipation system is constructed by progressively narrowing and staggering the extrusion modules to create the spillway. The energy dissipation structure within the reserved space is integrally formed with the 3D-printed protective shell on the upstream slope and dam crest, without construction joints. The 3D-printed protective shell is formed on the upstream slope and dam crest using the extrusion modules as the base surface. The surface reinforcement layer is applied to the exposed surfaces of the 3D-printed protective shell and energy dissipation structure, simultaneously filling the module seams and printed micropores. This structure constructs a three-layer collaborative protection system, enabling rapid assembly, stable operation, and low-cost maintenance.

The present invention relates to the technical field of check dam monitoring, and discloses a method and system for perceiving and integrating check dam monitoring and control information, including: collecting the monitoring data of the check dam, performing short-term risk prediction at the edge node according to the monitoring data, triggering local early warning based on the short-term risk prediction, and starting the response mechanism; establishing an adaptive cooperation mechanism among the edge nodes, identifying sensor anomalies and local disaster chains through the exchange and comparison of monitoring data among the nodes; the cloud integrates the monitoring data uploaded by the edge nodes, generates a global risk prediction model through dynamic data fitting, and conducts hierarchical emergency response according to the risk prediction results. The method of the present invention improves the safety management efficiency of the check dam, and provides a scientific support and an intelligent decision-making basis for flood control and fighting.

The utility model relates to a protective structure for treating the undercut of an erosion gully by using a bee grid, and belongs to the technical field of erosion gully protection. Comprising an ecological retaining wall and a check dam retaining wall. The check dam retaining wall is transversely arranged at the ditch bottom along the upstream face, the ecological retaining wall is arranged along the slope toe, and the check dam retaining wall and the ecological retaining wall are connected into a whole. A vertical clamping groove is formed in the slope toe of the side slope, and the two ends of the check dam retaining wall are embedded into the clamping groove. The check dam retaining wall is of a multi-layer strip-shaped structure formed by arranging small cells and large cells at intervals, and the small cells are arranged at the two ends of the check dam retaining wall. The ecological retaining wall is of a strip-shaped structure formed by arranging small cells and large cells at intervals, and the small cells are arranged at the two ends of the ecological retaining wall. The method has the advantages that the ecological retaining wall and the channel check dam retaining wall are light and easy to construct, local materials are used as filler, and the transportation cost is reduced; 2, the amount of silt flowing into the downstream is reduced, so that the ditch bottom is leveled and stepped section by section, and conditions are created for utilizing ditch land; 3, the channel is protected in a segmented manner to prevent continuous erosion, and water and soil are kept;

The utility model belongs to the technical field of water and soil conservation engineering, and particularly relates to an ecological bag net cage check dam. The ecological bag net cage is formed by building a plurality of ecological bag net cage units, each ecological bag net cage unit comprises a gabion net cage, an ecological bag filling body is arranged in each gabion net cage, each ecological bag filling body is composed of a plurality of ecological bags, a cavity is formed in the center of each ecological bag filling body, and each cavity is filled with soil. The ecological bags are used as fillers in the gabion net cage, so that the stability is high, and meanwhile, the building cost of the check dam is reduced.

The check dam structure applied to the erosion gully treatment comprises two bottom plates, the upper ends of the two bottom plates are each provided with a fixed box body, a connection blocking structure is arranged between the two fixed box bodies, and the two sides of the two fixed box bodies are provided with positioning structures; the connecting blocking structure comprises a blocking frame, a plurality of connecting plates, a plurality of connecting bolts, two limiting blocks, a limiting rod and a push plate. The utility model relates to the technical field of erosion gully treatment, in particular to a connection blocking structure which is used for blocking construction in an erosion gully through matching of two fixed box bodies and a blocking frame, and gravel or other substances can be filled in the fixed box bodies and the blocking frame, so that the overall weight of the fixed box bodies and the blocking frame is ensured, and the construction difficulty is reduced. The blocking stability is improved, the positioning assembly is matched with the bottom plate, the installation stability of the two fixed box bodies can be effectively guaranteed, and deviation is avoided.

The invention discloses a semi-arid region channel silt dam building site selection optimization layout method, system and device, a medium and a product, and relates to the field of engineering site selection layout, and the method comprises the steps: obtaining channel basic data of a semi-arid region target channel; determining a dam site suitability evaluation index according to the channel basic data; grading and quantifying each dam site suitability evaluation index, determining a corresponding weight, and constructing a dam site suitability evaluation index system; dividing the target channel to obtain a plurality of channel sections; evaluating each channel section by using a dam site suitability evaluation index system; determining a potential dam site according to the evaluation result; according to the potential dam site, a multi-objective optimization model considering the sand blocking benefit, the silt area, the dam body stability and the engineering investment is established; and according to the multi-objective optimization model, a dam site layout scheme of the silt dam is determined. According to the method, the accuracy, rationality and overall benefits of dam building and site selection of the channel silt dam in the semi-arid region can be improved.

The invention discloses a willow pile fracture monitoring and maintenance system and method for a biological check dam, and the system comprises a willow pile fracture self-excitation sensing module, a precise rooting maintenance module, a drought period synergistic water seepage and storage module and a system platform, the willow pile fracture self-excitation sensing module realizes real-time early warning monitoring and accurate positioning alarm of willow pile fracture, and the accurate rooting maintenance module generates a customized replanting scheme according to willow pile file data issued by the system platform and an adaptive algorithm. And the drought-period synergistic water seepage and storage module is combined with the pre-embedded biodegradable maintenance bag and the capillary water delivery carrier to strengthen the rooting effect and the water supply in the drought period. According to the system, traditional post-repair is upgraded into an intelligent management mode with real-time response, active intervention and continuous guarantee, the technical problems that in willow pile management of an existing biological check dam, breakage alarm is lagged, a complementary planting scheme is extensive, and water supply is insufficient in the drought period are solved, and the structural stability, ecological adaptability and self-maintaining capacity of the biological check dam are remarkably improved.

The invention belongs to the technical field of intelligent hydropower, and discloses a data-driven dam safety state analysis method and system, and the method comprises the steps: obtaining dam operation data, and carrying out the preprocessing of the dam operation data; verifying the preprocessed dam operation data, and filtering out invalid or abnormal data; obtaining a real-time index, an accuracy index and an integrity index according to the verified dam operation data, and carrying out weighted calculation on the real-time index, the accuracy index and the integrity index to obtain a comprehensive safety index; according to the comprehensive safety index, an Echarts engine is adopted for real-time rendering to obtain a dam safety state thermodynamic diagram, visualization and intelligent warning of the dam safety state are achieved, accurate and efficient decision support is provided for dam safety management, and the problems that in the prior art, a dam safety management evaluation method is low in efficiency, high in subjectivity and high in reliability are solved. And dynamic behaviors and long-term performance changes of the dam are difficult to comprehensively reflect.

The sliding fit structure comprises the blocking plate and sliding rails arranged on the side walls of the two sides of a debris flow channel, and is characterized in that the sliding rails are installed in sliding rail grooves, and rolling wheels are arranged on the lower side of the outer portion of the blocking plate and matched with the sliding rails; the two sides of a notch in the upper end of the sliding rail groove are each fixedly provided with an elastic sealing piece. The sliding rail groove can be protected, blockage is avoided, and the stability and smoothness of vertical sliding of the blocking plate during desilting after debris flow ends are better guaranteed.

The invention provides an ecological management method for the situation that a debris flow channel is provided with a blocking dam and is in a full storage state. The method comprises the steps that a fish scale-shaped blocking body is arranged on the upstream of a blocking dam, a vertical columnar pit is dug behind the blocking body, straw is laid on the two sides and the bottom of the pit, degradable sponge is laid on the straw, then in-situ soil and organic fertilizer are mixed according to the proportion of 4: 1 and filled into the columnar pit, and after corresponding trees are planted, the mixture is treaded tightly and fully watered. The method has the advantages that the problem that the trees are impacted by random diversion of braid flow under the state that the debris flow channel is full is solved, meanwhile, the trees are indirectly irrigated through water flow, loss of soil in loose deposits is reduced, the survival rate of the trees is increased, healthy and strong growth of the trees is guaranteed, and therefore the loose deposits are better fixed; and complementation with geotechnical engineering is formed, and the positive influence on treatment of the debris flow channel is generated.

The invention discloses a silt dam erosion simulation test device and a test method. Relates to the technical field of silt dam test equipment. The device is characterized by comprising a cylinder assembly, a rack assembly, a soil sample placing assembly, a measuring assembly and a control display system. During a test, the method comprises the following steps: S1, preparing a soil sample; s2, placing a to-be-tested soil sample in the soil sample placing assembly; s3, adjusting the length of an axial electric pressing rod assembly until the height of the soil sample placing assembly reaches a preset height; s4, fluid is added, specifically, a water valve communicates with a water source, water is injected into the cylinder, and the fluid smoothly enters the cylinder; after the fluid is added, the water valve is closed, and the water valve is disconnected from the water source; s5, starting the test; s6, after flushing is finished, a water valve is opened, and fluid in the cylinder is discharged; and S7, after the test is completed, taking out the residual soil sample, and drying to obtain the average erosion rate.

The invention relates to a circulating water tank device for simulating the regulation and control effect of a silt dam on water and sediment and a test method. The device comprises a glass water tank, and the glass water tank comprises a tank body, a steel framework and a fixed end base; the tank body is of a box-shaped structure with an upper opening; tempered glass is embedded in the two sides of the steel framework, and a glass bottom plate is embedded in the bottom of the groove body; the model dam is a silt dam model pasted in a glass water tank through glass cement, and a water inlet and a water outlet torrent groove are formed in the two ends of the glass water tank. The lifter is fixed at the bottom of the glass water tank to adjust the gradient of the water tank; the orifice box is fixed above the glass water tank through a supporting device; and the supporting device is mounted above a water inlet close to the glass water tank. The model dam is arranged in the water tank, the corresponding monitoring instruments are arranged, the regulation and control effect of the silt dam on the water and sediment process is monitored by controlling the water flow rate and the sediment content, and technical support is provided for research on the water and sediment mechanism of the silt dam.

This invention relates to the field of soil and water conservation technology, and provides a portable gully retainer and its deployment method for shallow gully management. The portable gully retainer includes a transverse retaining wall, a stilling basin, and protective wing walls. The transverse retaining wall is positioned horizontally along the width of the shallow gully and has an overflow outlet. The stilling basin is located downstream of the transverse retaining wall, with a gradient arrangement between the stilling basin and the overflow outlet. The protective wing walls are located at the end of the stilling basin furthest from the transverse retaining wall, and are angled to the flow direction of the shallow gully. The transverse retaining wall, stilling basin, and protective wing walls are connected to form a turbulent flow channel, which slows down the water flow velocity and controls the flow direction within the shallow gully. This invention effectively intercepts sediment, controls gully slope expansion and gully bottom erosion, is easy to assemble and disassemble, is reusable, and its deployment location and insertion depth can be dynamically adjusted according to the sediment deposition depth without affecting mechanized farming, fundamentally solving the problem of shallow gully management in black soil areas.

The utility model relates to the field of water conservancy and hydropower facilities, especially to a water and mud flow prevention and control system of hydropower station ditch, which realizes the cooperative prevention and control of ditch water and mud flow between adjacent branch ditches, comprising a first branch ditch, a first check dam and a first water dam are sequentially arranged along the water flow direction of the first branch ditch; comprising a second branch ditch, a second check dam and a second water dam are sequentially arranged along the water flow direction of the second branch ditch; comprising a first drainage hole, the first water inlet of the first drainage hole is arranged between the first check dam and the first water dam, and the first water outlet of the first drainage hole is arranged between the second check dam and the second water dam; comprising a second drainage hole, the second water inlet of the second drainage hole is arranged between the second check dam and the second water dam, and the second water outlet of the second drainage hole is communicated with a downstream river channel. The utility model is especially suitable for the hydropower station ditch management engineering in high mountain and valley area.

The invention relates to the technical field of water resource environmental engineering, in particular to a check dam sludge storage device which comprises a plurality of check dams sequentially arranged on a hillside and used for intercepting water and sludge flowing down from the hillside layer by layer. Each check dam comprises a check dam wall and a sludge storage device; a drain hole is formed in the check dam wall, and the sludge storage device is used for controlling opening and closing of the drain hole; in the initial state, the drain holes are in an open state, when sludge and water are accumulated below the check dam wall, the drain holes in the open state are used for enabling water on the upper layer to flow out, and when the sludge on the lower layer is accumulated to reach the lower edges of the drain holes, the sludge storage device blocks the drain holes, so that the drain holes are closed, and the sludge and the water are prevented from flowing out. The drain holes of the check dam wall are controlled by the sludge storage device to be opened or blocked according to the stacking height of the sludge, the sludge and water are effectively prevented from flowing out continuously, drainage is guaranteed, and flowing of the sludge is controlled.

The invention provides a bamboo forest erosion inferior land rill erosion prevention and control system and method capable of comprehensively utilizing bamboo resources. The system comprises an upper catchment area runoff dispersion system arranged above a rill catchment area, a rill head traceability erosion prevention and control system arranged at a rill traceability erosion section, and a rill channel energy dissipation and flow reduction system arranged in a rill main channel, the ecological grass ditch is arranged at the downstream of a water outlet of the rill; and the bamboo check dam systems are distributed at different elevation positions of the rill. The method closely focuses on rill erosion prevention of the bamboo forest erosion inferior land, and the prevention technology cost is low; the adopted materials do not relate to concrete, reinforcing steel bars and traditional water and soil conservation spraying and mixing chemical materials, and the prevention and control technology is high in ecological property; according to the invention, a full-chain rill prevention and treatment system of'diversion in a water collecting area, stabilization of the ditch head, protection of the ditch and adsorption of the ditch tail 'is innovated, and the prevention and treatment technology is obvious in effect.

The utility model belongs to the technical field of flood prevention devices, and particularly relates to a novel water conservancy project flood prevention device which comprises two installation frames which are oppositely arranged and used for installing grid baffles, the grid baffles comprise a male grid baffle and a female grid baffle, and a locking assembly is arranged between the male grid baffle and the female grid baffle. And a sealing piece which is matched with the locking assembly to increase the fitting degree of the splicing position of the male grid baffle and the female grid baffle is further arranged between the male grid baffle and the female grid baffle. The locking assembly is arranged between the male grid baffle and the female grid baffle, close connection between the adjacent grid baffles is ensured through the design, the fitting degree between the two baffles can be enhanced by applying external force to the female grid baffle, water flow permeation is effectively prevented, the flood prevention effect is enhanced, besides the locking assembly, the sealing piece is further arranged, and the sealing piece is not prone to falling off. According to the flood prevention device, the sealing performance of the splicing positions of the grid baffles is improved, water flow can be effectively prevented from permeating into the flood prevention device through gaps even under the extreme weather condition, and therefore the overall efficiency of the flood prevention device is guaranteed.

The invention provides a method for measuring and calculating the amount of silt retained in a check dam. The method comprises the following steps: establishing a three-dimensional volume generalization model of silt retained in the check dam to be measured and calculated; actual measurement parameters of the three-dimensional volume generalization model are obtained; on the basis of the three-dimensional volume generalization model, the key silt retaining capacity of the check dam to be measured and calculated is obtained through calculation by applying the actually-measured parameters; the key silt retaining capacity comprises at least one of historical silt retaining capacity, time period silt retaining capacity and potential silt retaining capacity. The method provided by the invention comprises the following steps: establishing a three-dimensional volume generalization model of check dam retained silt to be measured; actual measurement parameters of the three-dimensional volume generalization model are obtained; based on the three-dimensional volume generalization model, the key retained sediment amount of the check dam to be measured and calculated is obtained through calculation by applying the actually measured parameters, and measurement and calculation of the check dam retained sediment amount which is simple and convenient to measure, high in accuracy and low in cost are achieved. The method has important practical significance for accurately and quantitatively evaluating the silt retaining benefit of the check dam and estimating the silt retaining capacity and the effectiveness threshold value of measures for eroding the check dam.

The present application relates to the field of intelligent water conservancy and automation control technology, in particular to a polder multi-site water conservancy data real-time acquisition and intelligent fusion processing method and system, comprising: a multi-dimensional acquisition system construction step: collecting time sequence state, fluid field and environmental boundary data and performing time base unification cleaning; an ideal model construction step: constructing an ideal water tank model based on the law of conservation of mass and generating an ideal water level change curve; a parameter injection simulation step: injecting efficiency attenuation and medium leakage parameters to generate a simulation fault water level curve; a double-track difference calculation step: differentiating the measured and simulation data from the ideal curve to generate real and theoretical residual vectors; a similarity determination and control step: calculating sequence similarity to determine real physical faults or sensor data noise, and generating fusion control instructions; the present application effectively solves the technical pain point of distinguishing between sensor noise and real physical faults, avoiding false positives or false negatives.

The present invention provides a method for selecting the location of a silt dam with the goal of flood control and economy, comprising: constructing a functional relationship A(S) between the silt dam location S and the runoff area A; constructing a functional relationship L(S,H) between the silt dam location S, the silt dam height H and the silt dam span L; constructing a functional relationship V(S,H) between S, H and the silt dam flood detention capacity Vz Z (S,H); According to A(S) and V Z (S, H), the flood peak reduction degree R of the silt dam is obtained; according to the height H, L (S, H) of the silt dam and the unit price u of the material, the construction cost C of the silt dam is obtained; with the maximum R and the minimum C as the optimization target, S and H as the decision variables, a multi-objective optimization model is constructed, the Pareto front is solved and drawn, and the silt dam is laid out according to the Pareto front. The present invention can quickly obtain the trade-off relationship between R and C, and finally obtain the layout location and scale of the silt dam that meets both the requirements of flash flood disaster reduction and the investment cost.

The invention discloses a soil check dam construction method based on geopolymer solidified shield muck. The soil check dam construction method comprises the following steps: 1) slope cutting: I, performing slope cutting and leveling on upstream and downstream ditch slopes of a check dam to be built; iI, chiseling or washing the ditch bottom along the axis of the dam, and removing topsoil and sludge; iII, a shallow key groove is dug in the ditch bottom position and used as a guide groove and an anchor; iV, if the slopes on the two sides of the ditch bank are loose or the water flow scouring is strong, shallow lug grooves can be excavated similarly, anchor rods are matched for anchoring, bed rock is stabilized or undisturbed soil is compacted, and side grooves can not be formed; (2) forming is conducted, specifically, a simple formwork or an in-situ soil formwork is arranged in a guide groove, flowing geopolymer is poured in a layered mode to solidify shield muck slurry, and vibration and exhaust are conducted in a segmented mode till the check dam reaches the designed height; the anchor rods are arranged along the upstream slope and the downstream slope, and the geopolymer slurry is sprayed twice in a wet mode after the steel wire mesh is hung. The method can effectively replace a traditional multilayer soil filling and deep groove excavation process, and consumption of natural gravel and cement is reduced.