127 results about "Levee" patented technology

The invention provides a river levee flood control pile foundation stress analysis method and system, and relates to the technical field of river levee flood control pile foundation stress analysis. Multi-channel sensors are arranged on the pile top, the pile side and the pile end, and the sampling frequency is automatically switched along with the flood stage; inverting the soil saturation based on displacement and pore pressure change, dynamically correcting the permeability coefficient and the effective stress, and outputting a space-time coupling parameter matrix; determining a hazard source for the monitoring point, constructing an elliptical search domain by taking the hazard source as a center, and recursively incorporating abnormal points to form a risk area; a seepage-structure full-coupling finite element model is established in the risk area, the outside of the area is simplified through an equivalent spring boundary, and a pile foundation stress-strain field and a safety coefficient are calculated through self-adaptive time step control; and finally, generating a risk report according to safety factor classification, marking a high-risk area, automatically improving the sampling frequency and triggering early warning.

The invention relates to the technical field of hydrodynamic simulation, in particular to a lateral coupling method of a one-dimensional hydrodynamic model and a two-dimensional hydrodynamic model. The method comprises the following steps: collecting topographic data in a large section of a river channel and flood control protection areas on both sides of the river; constructing a one-dimensional hydrodynamic model and a two-dimensional hydrodynamic model based on the topographic data; determining a common edge of the one-dimensional hydrodynamic model and the two-dimensional hydrodynamic model; according to the relative position of the water level of each common edge in the one-dimensional cell of the river channel side and the midpoint of the common edge, combining an approximate Riemann solver to obtain the numerical flux of each common edge; obtaining a new time layer variable value of the two-dimensional hydrodynamic model by adopting an approximate Riemann solver; and obtaining a new time layer variable value of the one-dimensional hydrodynamic model according to the condition that the river flood overflows the embankment on the shared edge of the two sides of the one-dimensional cell and the numerical flux and the water level of the two sides of the one-dimensional cell, and outputting a calculation result. The stability of the model calculation process is ensured, and the reliability and practicability of the model are improved.

The invention discloses a flood storage and detention area flood diversion process simulation method and device based on a hydrodynamic model, and the method comprises the steps: obtaining the landform, river section, dike engineering parameters, and real-time hydrological and meteorological data of a flood storage and detention area, constructing a basic parameter library, and storing the basic parameter library in a data input module; constructing a hydrodynamic model calculation module by taking a hydrodynamic equation as a theoretical basis on the basis of the basic database, and combining a finite element volume method; receiving a numerical calculation result, analyzing real-time parameters through a dynamic simulation module so as to match actual hydrological parameters, and performing comparison under multiple scenes; and transmitting the hydrological parameters and the comparison data to a result output module, and outputting key parameters of the flood diversion process and a risk assessment result. The method has the advantages that high-frequency coupling of a hydrodynamic model, multi-source dynamic data, a cross-domain model and an engineering control system is achieved, and the problems of data lag, model isolation and control disjunction in traditional simulation are solved.

The invention relates to the technical field of dam water level monitoring, and discloses an automatic dam water level monitoring device based on the buoyancy principle. The outer surface of the stand column rod is provided with a water level monitoring assembly used for floating on the water surface to conduct water level detection and a protection cylinder used for protecting the water level monitoring assembly. According to the dam water level automatic monitoring device based on the buoyancy principle, the protection cylinder is arranged and used for protecting the water level monitoring assembly, so that impact interference caused by garbage in water to the water level monitoring assembly can be effectively prevented, fluctuation interference caused by surging of water ripples to the water level monitoring assembly is prevented, and the service life of the water level monitoring assembly is prolonged. And an auxiliary floating frame is arranged on the outer surface of the protection barrel, so that the protection barrel can adaptively adjust the protection height according to the change condition of the water level, and the protection range of the water level monitoring assembly is further widened.

The present invention discloses a tough protection device for embankments for preventing the impact of ice and floods, which relates to the technical field of water conservancy projects and includes: an embankment body, which is laid on both sides of the river bank parallel to the flow direction of the flood; a slope protection, which is laid on the surface of the embankment body, and an anti-seepage body for lowering the water level is also provided inside the embankment body; a wave-breaking wall, which is arranged on the top of the embankment body; protection components, which are arranged in multiple groups and fixedly laid on the slope protection on the water side of the embankment body; protection plates, which are arranged in multiple groups and fixedly set on two adjacent protection components; an ice-breaking component, which is arranged between the protection components, and the ice-breaking component passes through the gap between the protection plates toward the river channel; an arresting cable, one end of which is fixed to the bottom end of the protection component, and the other end can pass through the protection component and extend into the river channel.

【assignment】 Budgetary constraints make it difficult to build levees high enough to accommodate predicted tsunami heights. Construction of tsunami evacuation shelters has also been slow due to the risk of blocking visibility of the ocean. [Solution] By utilizing the existing coastal levee in front of us and stacking a tsunami evacuation shelter that protrudes higher than the levee height on its backside, we can be satisfied with the height and strength. Even if submerged by a tsunami, the box-shaped structure of the tsunami evacuation shelter retains air inside, so people can survive. Just like having an evacuation shelter right in front of you in your daily life, it is easy to gain support for raising the levee. Quick evacuation with the whole family is possible. Peace of mind 24 hours a day. Being prepared is a blessing. Being able to live each day safely and with peace of mind is truly a blessing.

The invention discloses a construction method for curing sludge while blowing sludge, which comprises the following steps of: filling sludge with two layers of film bags to form a fence for blocking sludge on the outer surface layer, and pumping floating water on the upper layer by using a sludge pump; sludge solidification is directly carried out on the reinforced area in an in-situ solidification mode, the hydraulic reclamation area is propelled from one side of the levee, and the next construction working face is fished out; curing in the cured area for 7 days, and moving the sludge curing equipment to the cured area after the strength is reached; a film bag is arranged at the solidification boundary to flush and fill the flow-state solidified soil, and sludge solidification equipment is adopted for assisting sinking to the bottom elevation + 0.22 m; carrying out in-situ solidification on the dredger-filled sludge soil in the rest area; after the in-situ curing area reaches the strength, sludge ex-situ curing construction is conducted in a layered mode, and the curing thickness of each layer is 0.8 m; and the flow-state solidified soil is constructed layer by layer in sequence to + 6.20 m. The construction process of in-situ curing and heterotopic curing is adopted, an effective construction channel and an effective construction platform are formed, and a guarantee is provided for the on-site production progress.

The invention discloses a particle diffusion detection device for embankment defect detection in the technical field of embankment structure defect detection, and aims to solve the problem that more defects of an embankment cannot be judged by detecting the flowing state of a water body through a traditional defect detection mode in the prior art. The device comprises a sealing box and a feeler lever installed on the sealing box, a hopper and an air injection pipe are arranged in the sealing box, the air injection pipe is communicated with a discharging pipe opening of the hopper, a collecting rod is arranged at the discharging opening of the hopper in the axis direction of the discharging opening in a sliding mode, a collecting groove is formed in the collecting rod, and a driving mechanism is arranged in the sealing box. The sealing box is further provided with an air connecting pipe and a nozzle which are communicated with the air inlet end and the air outlet end of the air spraying pipe respectively. The underwater spraying device is used for spraying different types of solutions or observation particles underwater, quantitative material taking and spraying can be carried out, and the underwater spraying device has good sealing performance and controllability and can be used for observing and analyzing different to-be-detected substances in various modes.

The application belongs to the technical field of shield construction, and discloses a method and system for early warning of settlement trend of shield construction crossing a dam; the method comprises the following steps: collecting silt layer geological data before the shield crosses the dam, and analyzing to obtain the distribution range and sensitivity level of the silt layer; collecting the tunneling parameters in real time in units of each ring when the shield machine crosses the silt layer section, and analyzing to obtain the disturbance index; collecting the real-time tunneling speed and the cutter head rotating speed, and recording the shutdown parameters when the complete shutdown condition is met; collecting the slurry tank pressure and the shutdown duration during shutdown, and calculating the pressure data; for the current sensitivity level, the preset hierarchical early warning rule is adopted, the current disturbance index basic threshold is corrected to obtain the corresponding dynamic threshold, the pressure data is compared with the dynamic threshold, and the early warning is issued according to the preset trigger logic classification; and the application improves the safety of shield construction crossing the dam.

The utility model provides an old cofferdam heightening and reinforcing structure. The old cofferdam heightening and reinforcing structure comprises a plurality of reinforcing layers, a lime soil layer, a broken stone hardcore, a stone chip layer and a surface protecting layer. The reinforcing layer is composed of a plurality of pieces of filling bagged sand. The lime soil layer is laid on the reinforcing layer on the topmost layer; the broken stone hardcore is laid on the lime soil layer; the stone chip layer is laid on the broken stone hardcore; the surface protection layer is laid on the side surface of the reinforcing layer; the reinforcing layer is formed by filling a plurality of sand bags, the sand bags are formed by filling sand around the cofferdam into the filling bags, local materials are used, the construction speed is high, the construction cost is reduced, damage to the natural environment is reduced, and meanwhile the transportation cost is reduced. The cofferdam is heightened and reinforced by filling the bagged sand reinforcing layer, washing of water flow is prevented through the surface protecting layer on the side face, the lime soil layer, the broken stone hardcore and the stone chip layer are laid on the top face of the reinforcing layer, and the effect of heightening and reinforcing an original old cofferdam is achieved.

1. The name of the design product: embankment hidden danger detection vector sensor. 2. The use of the design product: used in the field of water conservancy engineering, specially buried or placed in the interior and surface of the dam, and the hidden dangers such as seepage and cavity are detected by sensing the vector information of physical field. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view.

To provide a metropolitan disaster prevention facility.SOLUTION: An urban disaster prevention facility comprises a tsunami-resistant ceiling river dike installed in a sea near a coastline and makes river water from both ends of a ceiling river along a coastline into the open sea. The urban disaster prevention facility comprises a ceiling river dike 5 not requiring land reclamation and is provided in a sea on a comparatively shallow seabed continuously from neighboring riverbanks of a plurality of neighboring rivers, and a tsunami countermeasure dike 7 that is provided on an open sea side of the ceiling river levee 5 not requiring land reclamation and has a plurality of openings 7a whose both ends connect to the coastline.SELECTED DRAWING: Figure 2

1. Name of the design product: Sheet pile (Z-shaped). 2. Use of the design product: This design product is used in projects such as riverbank protection, levee protection, retaining wall, and foundation pit support for construction projects. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view of Design 1. 5. Design 1 is designated as the basic design. 6. This design product is an elongated item, and its length is drawn using an omission method.

The invention relates to a river levee dam break flood prediction method and device, and belongs to the technical field of flood prediction, and the method comprises the steps: predicting the future boundary data of a river channel through employing a historical rainfall-river channel boundary fitting algorithm according to the forecast rainfall of a weather bureau, and carrying out the prediction of the river levee dam break flood based on the future boundary data of the river channel and a one-dimensional hydrodynamic coupling mathematical model; predicting a future river section water level and a future river section flow; based on the future river section water level and the future river section flow, determining the water depth and the flow velocity of a coupling interface by combining a discontinuous interface algorithm; the water depth and the flow velocity of the coupling interface are used as boundary conditions to act on the two-dimensional hydrodynamic coupling mathematical model, and a momentum flux correction method is combined to predict the future ground flood level, so that the problems of unbalanced still water and unstable prediction during flood level prediction are solved, and the flood level prediction accuracy is improved.

The utility model relates to the field of termite control, in particular to a bamboo tube type termite trapping and killing device which comprises at least one bamboo tube, one end of the bamboo tube is sealed through a bamboo joint, the other end of the bamboo tube is open, bait is placed in the bamboo tube, and a blocking piece used for blocking the bait from falling out is fixed in the bamboo tube. The termite trapping and killing device is very suitable for trapping and killing termites on reservoir dams or river levees with strip stone protection slopes and block stone protection slopes in water conservancy projects, is good in trapping effect and environmentally friendly, and greatly reduces pollution of chemicals to the environment.

The utility model discloses a dike drainage structure capable of reducing dike damage caused by rainstorm, which is arranged on a dike top surface and a dike slope surface and comprises two longitudinal plastic blind ditches along the dike top surface, and each longitudinal plastic blind ditch comprises an exposed part and a buried part; a plurality of transverse plastic blind pipes which are transversely and uniformly arranged are arranged on the top surface of the dike, and the two ends of the transverse plastic blind pipes are communicated with the buried parts of the longitudinal plastic blind ditches; a plurality of slope plastic blind ditches are arranged on the upstream face of the dike, the top ends of the slope plastic blind ditches are communicated with the buried parts of the longitudinal plastic blind ditches, and the lower ends of the slope plastic blind ditches extend to the bottom of the dike and then extend by one section in the horizontal direction. According to the utility model, the formation of gullies on the earth embankment top and the slope surface under the rainstorm condition can be obviously reduced, so that the safety of the embankment body and flood prevention is ensured; the device has the advantages of low manufacturing cost, high construction speed, long service life, simplicity and convenience in maintenance, low maintenance cost and good drainage effect.

This item is a gate for a rotary weir installed on a river overflow levee. The rotary weir consists of a weir column and a gate, and the gate has a through-hole that extends horizontally, as shown in the reference front view. By fitting a rotating shaft attached to the weir column into this through-hole in the gate, the gate becomes able to rotate. In the rotary weir, under normal conditions, the gate is in a vertical position, as shown in the reference front view, reference plan view, and reference cross-sectional view AA showing the normal state. In the event of a river flood, the gate rotates to a horizontal position, as shown in the reference cross-sectional view AA showing the flood state, thereby allowing water to flow from the river side to the regulating reservoir side.

The invention discloses a flexible composite anti-seepage thin wall system and a construction method thereof. The flexible composite anti-seepage thin wall system comprises a solidified soil anti-seepage thin wall, an omega-shaped core material capable of being assembled, an omega-shaped core material vertical fusion assembling sleeve, a nose-shaped positioning clamping piece and an omega-shaped core material concave connector bottom protection sleeve. The thin wall is formed at the middle position of the dike body by adopting vertical cutting in combination with spraying and stirring of the curing agent slurry, then the vertical anti-seepage core material capable of being spliced is implanted in the middle position in the thin wall, and the thin wall is bonded with the anti-seepage core material to form a whole after being cured, so that a flexible composite anti-seepage thin wall structure is formed at the middle position of the dike. The structure has the advantages of being good in flexibility, high in structural toughness, high in deformation adaptability, reliable in seepage prevention, low in investment, convenient to construct and the like.

The application discloses a kind of fusion distributed optical fiber acoustics embankment underwater pipe heaving detection positioning system, it is related to water conservancy engineering safety monitoring technical field, comprising: voiceprint signal perception preliminary screening module, for collecting original acoustic vibration signal in strong noise environment, and carry out preliminary purification and separation to it, obtain the intrinsic mode function of different frequency bands, separate out weak pipe heaving suspected signal submerged in background noise.The application maps the seepage network reasoned into high-precision fluid-structure coupling model by introducing digital twin technology, simulates the evolution process under extreme working conditions such as sudden change of water level in virtual space, so that the system can calculate the final breach form, size and position, and the consequences of pipe heaving disaster are pushed from the qualitative judgment to the quantitative prediction, realizing the dynamic deduction and quantitative prediction of pipe heaving disaster process based on physical mechanism.

The utility model relates to the technical field of riverway treatment, in particular to a riverway treatment trash holding device which comprises a cleaning mechanism fixed between river banks on two sides of a riverway, located in front of a riverway trash holding grating and used for fishing out trash in the riverway. The cleaning mechanism comprises two rectangular frames which are located in the river channel and fixedly connected with the side faces of the river levees at the corresponding positions, a round rod is arranged between the two rectangular frames, the two ends of the round rod are rotationally connected with sliding blocks sliding in the rectangular frames at the corresponding positions, and the outer wall of the round rod is fixedly connected with a fishing plate. Garbage on the water surface can be fished up through upward movement of the fishing plate, when the fishing plate moves to the top end of the rectangular frame, the fishing plate rotates by a certain angle to be in an inclined state, so that the garbage in the fishing plate rolls into the conveying mechanism, then the garbage is conveyed to a river levee through the conveying mechanism, and due to the fact that the fishing plate is in a horizontal state when the garbage is fished, the garbage can be conveyed to the river levee through the conveying mechanism. And rod-shaped garbage can be prevented from rolling into water again.

The invention relates to the technical field of agricultural irrigation, in particular to a large trunk canal siphon water taking drip irrigation head engineering system which is suitable for water-saving irrigation of farmland on both banks of a trunk canal in a large irrigation area and comprises a trunk canal, a siphon water taking pipeline system, a filtering head forebay, a pump front filter and a drip irrigation pressurization head. The vacuum water diversion device is arranged, and siphon automatic water supply is formed through the water level difference. Water enters the forebay through the siphon to be primarily filtered, then is secondarily filtered through the pre-pump filter, and is pressurized and conveyed to a drip irrigation system through the pipeline centrifugal pump, so that efficient irrigation is realized, a trunk canal levee does not need to be opened for water diversion, and the safety of a water conservancy project is protected; automatic and continuous water supply is achieved through the siphon principle, and energy is saved; the filtering forebay is small in occupied area, and the land utilization rate is increased.

The invention discloses a digital twinning method for dam overtopping outburst plugging emergency decision support, and relates to the technical field of dam overtopping outburst plugging emergency decision, and the method comprises the following steps: S1, constructing a dam digital bottom plate, the digital base plate fuses static geographic information of medium and small reservoirs and easy-to-break sections of river levees, geometric and mechanical attribute information of the levees and information of reservoir areas and downstream riverways on the basis of a database technology, and integrates real-time monitoring and sensing data, S2, automatically throwing tracer particles through an unmanned aerial vehicle, and obtaining surface flow field data near a breach by adopting a video processing method, for sensing the water power state of the breach, dynamic sensing of breach development, the water flow state and the plugging effect is achieved by constructing a digital bottom plate system and fusing dam static information and real-time monitoring data, the unmanned aerial vehicle is adopted for throwing tracer particles, and a high-precision flow velocity field is constructed based on the PIV image processing technology; and the sensing blind area of the traditional measurement means is effectively compensated.

The utility model relates to the technical field of water conservancy projects, and discloses an ecological river levee structure of a water conservancy project, which comprises a support bottom plate, a vertical plate and a river levee main body, a first inclined support rod is obliquely supported between the support bottom plate and the vertical plate, an installation bolt is connected in a threaded connection groove, and a cap head is fixed at the top end of the installation bolt. The side slope net is assembled between the side slope pressing plates, then the side slope net is assembled on the top face and the side face of the river levee body, and the threaded connection grooves are formed in the river levee body, so that after the side slope pressing plates and the side slope net are assembled in a combined mode, the mounting bolts are connected with the threaded connection grooves in a locked mode, and the mounting bolts are connected with the threaded connection grooves in a locked mode. The slope pressing plate and the river levee body are connected and assembled, at the moment, the slope net can be arranged outside the river levee body, regular planting of vegetation is facilitated, after the cap head is fixed to the top of the installation bolt, operation of people is facilitated through the cap head, the deviation problem of the follow-up slope pressing plate is solved, and the assembling capacity is improved.

An apparatus for guiding fish through a body of water having a water flow includes one or more hydrofoil element oriented in the body of water to produce an asymmetric flow field that has a fast, low turbulent flow on one side of the element and a slow, high turbulent flow on the other side of the element. Positively rheotactic fish have a preference for one side versus the other and so are guided in a desired direction. Systems and method that utilize the apparatus can be used to guide fish away from infrastructure such as dams, locks, levees, flood weirs, and other diversion points.

The invention provides an intelligent identification method and device for river reach dike personnel intrusion based on target detection, and relates to the field of computer vision. The method comprises the following steps: obtaining river levee detection picture data; extracting multi-scale semantic and textural features of the river bank detection picture data by adopting a trunk sub-network; performing alignment and fusion on the multi-scale semantic and texture features by adopting a neck sub-network to obtain deep features; the neck sub-network is formed by combining top-down and bottom-up feature pyramid fusion modules with a convolution attention mechanism of channel attention and space attention; based on the deep features, identifying a target category by detecting a head sub-network, and predicting target positioning; and the detection head sub-network comprises a classification module of the KAN neural network. The method and the device are used in the intelligent identification process of river reach dike personnel intrusion based on target detection, and solve the technical problem of low identification precision of the existing target detection technology in a complex outdoor environment.

The invention relates to the technical field of geographic information recognition, and provides a dike feature recognition method and system based on cross section elevation data, and the method comprises the steps: obtaining the cross section data of a river channel, and carrying out the preprocessing of the cross section data of the river channel; identifying candidate peak values serving as levee crest candidate points in the preprocessed river cross section data and outputting a candidate peak value list; checking whether the dike characteristics form an effective double-dike structure or not based on the candidate peak values; when an effective double-embankment structure is formed, attribution bank distribution is carried out; when the effective double-embankment structure is not formed, whether a single-embankment structure or a non-embankment structure is formed or not is judged according to the highest peak value in the candidate peak values; and outputting an embankment feature recognition result. According to the scheme, automation, accuracy and robustness can be considered, and the urgent demand of modern intelligent water conservancy for dike asset digital management can be effectively met.

A working platform that may be used at a site of a functional hydro structure, such as a dam, powerhouse, impoundment structure, sea wall, levee, tailings dam, or the like, constructed at least in part of precast segments is described herein. The working platform supports the functional hydro structure assembled thereon, which includes, at least in part, precast segments. Related methods for constructing a functional hydro structure are provided.

The utility model relates to the technical field of river embankment reinforcing, and discloses a river embankment reinforcing retaining wall which comprises a retaining wall body, a fixing cylinder is fixedly installed on the rear side wall face of the retaining wall body, the retaining wall body comprises a barb device, and the barb device comprises two limiting cylinders arranged in a cavity of the fixing cylinder. A barb plate is movably installed in a cavity of each limiting cylinder, the left end and the right end of each barb plate are each provided with an L-shaped plate, and a penetrating hole is formed in the position, corresponding to the two barb plates, of the side wall of the fixing cylinder. Comprising a moving device, the moving device comprises side plates arranged on the left side and the right side of a limiting cylinder, and the ends, away from each other, of the two corresponding side plates are each provided with a driving rod. In conclusion, through the arrangement of the barb device and the moving device, the barb plate can be inserted into soil to limit the fixing barrel, then the effect of limiting the retaining wall body is achieved, and the barb plate can be driven to move through the moving device.

The utility model discloses a river levee protective fence for hydraulic engineering, which comprises a river levee side slope, a protective fence main body is installed on the side edge of the river levee side slope, the protective fence main body is composed of a plurality of protective splicing units, each protective splicing unit comprises a blocking mechanism, splicing mechanisms are installed at the two ends of each blocking mechanism, and the splicing mechanisms are connected with the blocking mechanisms. A bearing mechanism is mounted on one side of the stopping mechanism; the bearing mechanism comprises a bearing mounting frame, a bearing net bag is arranged on the inner side of the bearing mounting frame, a guide transverse rod and a tensioning rod are mounted on the outer side of the bottom end of the bearing net bag, and locking rotary knobs are mounted at the two ends of the tensioning rod; the blocking mechanism comprises a blocking frame, and a blocking cross rod is fixedly installed at the upper end of the blocking frame. The warning device has the advantages that by warning ships, vehicles and pedestrians, accidental collision is avoided, fallen articles and pedestrians can be elastically supported, and use safety is improved.

The utility model discloses an ecological river embankment structure which comprises a backwater side pile body which is arranged at the toe of a side slope and vertically inserted into a river channel, a waterside pile is vertically inserted into the river channel on the outer side of the backwater side pile body, and a waterside platform is supported on the tops of the backwater side pile body and the waterside pile. A river channel between the backwater side pile body and the waterside pile forms a fish breeding place, and aquatic plants are planted in the river channel where the fish breeding place is located. The ecological river embankment structure is high in adaptability and can be implemented under various geological conditions, the excavation volume is saved, and therefore the engineering investment cost is reduced. The structure has the functions of a corridor, a buffer zone, a vegetation revetment and the like, can provide reliable guarantee for flood control safety, and is also a landscape line for people and water. According to the structure, different types of artificial fish nests can be arranged in a river levee, the natural environment is simulated, and a proper breeding place is provided for fishes; and the water body self-purification capacity is enhanced, the system is suitable for living and reproduction of organisms, and the water body and ecological environment of the river channel are improved.