139results about "Hydraulic models" patented technology

The invention discloses a large-scale immersed tube tunnel silt squeezing simulation device and method, the large-scale immersed tube tunnel silt squeezing simulation device comprises a large-scale immersed tube model, a truss structure, a gear rack structure, two supports and a model groove, the truss structure is fixed on the top of the large-scale immersed tube model, and a balancing weight is placed on the truss structure; two sealing rubber strips are respectively arranged on the periphery of the large-scale immersed tube model; in the process of lowering the large-scale immersed tube model in the model tank, one end of the large-scale immersed tube model rubs with the side wall of the model tank to form a closed end, the other end of the large-scale immersed tube model forms a sludge discharge end, and an ultrasonic flow meter is arranged at the sludge discharge end; a stay wire displacement sensor is fixed on each bracket, two fixed ends are arranged at the top of the large-scale immersed tube model, and a fixed head of each stay wire displacement sensor is fixed on one fixed end; a gravel layer, a back-silting float sludge layer and a seawater layer are sequentially arranged in the model groove from bottom to top, and a sea groove slope model is arranged in the model groove.

The invention discloses a dam leakage detection method and system based on an unmanned aerial vehicle and deep learning. The method comprises the following steps: acquiring dam surface image data through the unmanned aerial vehicle carrying image acquisition equipment; preprocessing the obtained dam surface image data; performing feature extraction and fusion on the preprocessed image data based on a deep learning model to obtain a multi-modal coupling feature image related to the leakage area; performing target detection on the multi-modal coupling feature image to identify a leakage area; and carrying out spatial positioning on the identified leakage area to determine a positioning coordinate of the leakage area. Dam leakage is detected by combining the unmanned aerial vehicle technology and the deep learning algorithm, the automation and intelligence level of detection is improved, manual intervention and errors are reduced, and the detection precision and efficiency are improved.

The invention discloses a device for simulating influence of ditch cleaning ice cover evolution on hydrodynamic parameters and an application method thereof, and relates to the technical field of ice water dynamics and hydraulic engineering experiments. The device comprises a low-level water tank, a high-level water tank, a centrifugal pump, a flow valve, a water tank, a steady-flow perforated plate, a ditch cleaning ice cover simulation device, a first water level control grid plate, a second water level control grid plate and a flow field measurement system. According to the invention, three key parameters of ditch cleaning length, ice cover submerging water depth and roughness of the bottom of the ice cover are independently regulated and controlled, and non-contact high-precision measurement is carried out by means of a PIV technology, so that systematic and refined research on hydrodynamic parameters of an ice cover ditch cleaning area is realized. According to the method, researchers can safely and systematically research the influence of a single variable on the ice cover ditch cleaning water power at low cost, and the fundamental bottleneck of traditional field measurement in the research is solved.

The invention discloses a deepwater bidirectional flow generation system, which relates to the technical field of pool flow field simulation and comprises a pool body and a bidirectional flow generation device. The bidirectional flow making device comprises a plurality of bidirectional flow making assemblies which are stacked in the depth direction of the pool body; the bidirectional flow making assembly comprises a plurality of circulating pipes; the plurality of circulating pipes are arranged in an array in the same horizontal plane perpendicular to the depth direction; each circulating pipe is connected with the pool body to form a circulating pipeline; a two-way water pump is mounted on each circulating pipe; and a steering flow guide structure is mounted at the corner position in each circulating pipe. According to the design, the problems of non-uniform flow field distribution and small effective area in a traditional mode are effectively avoided, and the same quality of flow fields in two directions can be ensured in bidirectional flow generation. And the steering flow guide structure is used for conducting flow guide at the corner position, and the problem of huge energy loss caused by a pressure perforated wall in a traditional mode is solved.

The invention discloses a three-dimensional wave flow test harbor basin system, relates to the field of ocean infrastructure engineering test equipment, and aims to solve the problem that complex ocean conditions cannot be truly reproduced. The system comprises a wave making pool, a current making mechanism, a wave making mechanism, a wave absorbing mechanism and a crane mechanism, the flow making mechanism comprises a flow making pump, a flow outlet, a flow inlet and a circulation corridor, the flow outlet and the flow inlet are both communicated with the wave making pool and the circulation corridor, and the flow making pump and the circulation corridor are both located below the wave making pool; the wave making mechanism comprises a transverse wave making device and a longitudinal wave making device which are mounted in the wave making pool, the transverse wave making device and the longitudinal wave making device are respectively provided with an upper layer and a lower layer, and the transverse wave making device and the longitudinal wave making device are vertically arranged; the wave absorbing mechanism is circumferentially arranged and is adjacent to the inner side wall of the wave making pool; the crane mechanism stretches across the wave making pool and is used for hoisting an experimental model.

The embodiment of the application provides a landslide accumulation seepage hysteresis simulation test device, and relates to the technical field of simulation test devices. The landslide accumulation seepage hysteresis simulation test device comprises a transparent test box, a bedrock simulation piece and a water level simulation mechanism. The transparent test box comprises a box body and a box cover, the box cover is installed on the top of the box body, a groove is arranged on the slope surface of the bedrock simulation piece, a landslide body simulation piece is installed in the groove, and the water level simulation mechanism comprises a storage water tank, a first water pump, a first water inlet pipe, a first water outlet pipe, a connecting pipe and a drain pipe. The pressure of the first water pump can be adjusted according to requirements to simulate the rising rate of the water level, so that the state of the landslide body simulation piece can be observed. The second valve is opened, and the first water pump and the first valve are closed. The water source in the box body is discharged through the connecting pipe and the drain pipe, the water level falling rate in the box body is simulated, the state of the landslide body simulation piece when the water level falls is observed, and more test data can be obtained.

The application discloses a kind of mobile underwater layered hydraulic fill construction indoor simulation test method, comprising: step (1) by input module design key test parameters;Step (2) by input module setting water depth, speed and wave conditions;Step (3) by management module mixes uniform mud;Step (4) by management module starts first layer mobile hydraulic fill;Step (5) by management module completes first layer mobile hydraulic fill;Step (6) by management module repeats step (4)-(5);Step (7) by measuring system measures hydraulic fill test characteristic parameter;Step (8) clears up water tank test area silt. Various key construction parameters are adjusted, and multi-layer repeated mobile construction simulation technology is realized, which provides an effective means for in-depth study of high-precision layered hydraulic fill technology, improvement of construction efficiency and management quality.

The invention relates to the technical field of river model experiments, and discloses a refined river model uniform sand adding experiment device, which comprises a sand adding groove, a sand discharging hole, a sand discharging hole, a sand discharging hole, a sand discharging hole and a sand discharging hole, the adjusting part is arranged in the sand adding groove, and the sand adding width of the sand adding groove is adjusted by moving the adjusting part in the sand adding groove; the sand adding assembly comprises a sand adding unit and a moving unit, the moving unit is slidably connected to the top end of the sand adding groove, and the sand adding unit is arranged on the moving unit and used for conveying a water-sand mixture into the sand adding groove; and the control piece is arranged on the sand adding groove and used for controlling the moving unit to reciprocate at the top end of the sand adding groove. Through combination of a mechanical structure and automatic control, uniform distribution of the sand amount in the space in the sand adding process is achieved, the problems that a traditional device is uneven in sand adding, prone to blockage and low in adjusting precision are effectively solved, and the reliability and scientificity of a river model test are remarkably improved.

The invention discloses an automatic tide tank system based on a siphon principle, which relates to the field of ecological simulation and comprises a main tank, a backpack, a low sewer pipe, a siphon device, a negative pressure ingress pipe, a high sewer pipe, a high sewer pipe ball valve and a low sewer pipe ball valve, the knapsack is fixedly connected to the rear portion of the main cylinder and communicated with the interior of the main cylinder, and the low sewer pipe and the high sewer pipe are both vertically placed in the knapsack. The siphon device further comprises a barrel-shaped cavity and a connecting hole, the connecting hole is formed in the bottom of the barrel-shaped cavity, and the barrel-shaped cavity is arranged at the inlet end of the high sewer pipe in a sleeving mode and used for forming a sealable air chamber at the inlet of the high sewer pipe. And the siphon device is fixed at the inlet end of the high sewer pipe through a connecting hole at the bottom. The applicability and customizability of the system are enhanced, and the whole system is simple in structure and high in stability, can efficiently simulate an intertidal zone of a natural sea area and create a tidal hydrological environment, and meanwhile has a good water purification function.

The invention relates to the technical field of test pools, and particularly discloses a gradient-adjustable offshore slope terrain simulation test pool based on double-platform lifting, which comprises a pool main body, a first platform, a second platform and an inclined panel, a deep pool and a shallow pool which are communicated with each other are arranged in the pool main body along a first direction; the first platform is arranged in the deep water pool in a lifting manner; the second platform is arranged in the deep water pool in a lifting manner; the second platform is located on the side, close to the shallow pool, of the deep pool and located between the first platform and the shallow pool. The first platform is provided with a sliding seat of which the position can be adjusted along a first direction; the first end of the inclined panel is hinged to the side face of the second platform. The second end of the inclined panel is hinged to the sliding base. In the test pool provided by the scheme, through the lifting of the first platform and the second platform, the inclination angle of the inclined panel can be changed under the condition that structural parts do not need to be disassembled and replaced, so that different offshore submarine topography characteristics are adapted, and the operation process is simplified.

The application provides a dam centrifugal test model reservoir water level controllable adjusting device and method, relates to the geotechnical centrifugal model test technical field, and includes a model box. An overburden dam model is arranged at one end in the model box. A placeholder box is arranged at the end away from the overburden dam model in the model box. A guide positioning mechanism is fixedly installed at the bottom end of the model box. When the hydraulic actuator is started and frequently lifted or lowered, the generated vibration is transmitted to the elastic connecting mechanism. The support of the first support platform in the elastic connecting mechanism is matched with the second buffer platform, the second buffer spring and the elastic damping of the movable connecting rod, and the fine adjustment of the third working platform and the precision guide rail pair. The high-frequency vibration transmitted by the hydraulic actuator under high g value is significantly inhibited, water level fluctuation distortion is avoided, and the reliability of test data is improved.

The invention discloses a river habitat ecological flow regulation and control device and method based on a multi-objective optimization algorithm, and relates to the technical field of river flow regulation and control. A double-support fixing frame is installed between two lateral confinement baffles, and a plurality of lifting fixing holes are formed in the top end of the double-support fixing frame at equal intervals; a plurality of fixed belt transmission boxes are clamped to the top end of the double-support fixing frame at equal intervals, and transmission motors are installed at the positions, corresponding to input shafts of the fixed belt transmission boxes, of the top end of the double-support fixing frame through motor bases. The drainage position is regulated and treated according to low water and high water, so that the water flow can be stably stored and slowly discharged when the water is low, and can be quickly discharged when the water is high, the overflow condition is avoided, the flow velocity and flow of the water flow are stably regulated and treated according to the actual environment, and the regulation and control effect is ensured.

This invention belongs to the field of hydraulic model technology, and particularly relates to an inlet / outlet hydraulic model, comprising: a reservoir body as a fixed container; perforated bricks set inside the reservoir body as the base filling of the model; variable modules as the framework of the steep slope of the model; PVC plastic pipes forming the framework of the gentle slope of the model; plastic flexible sheets laid on the surface of the variable modules and PVC plastic pipes; and rubber sheets bonded to the outer layer of the plastic flexible sheets. This application adopts modular component assembly, eliminating disposable consumables such as cement and sand, making model construction simpler and laying the foundation for green recycling and efficient production.

The invention provides a simulation test method and device for static subsidence in marine prefabricated structure soil. The method comprises the steps that a fixed steel plate and a movable steel plate are arranged in a test box body; backfilling a soil layer capable of pre-burying the fixed steel plate and the movable steel plate into the test box body, and then injecting water into the test box body to simulate a seabed environment; the movable steel plate is driven by the lifting mechanism to be gradually separated from the soil layer, so that relative displacement is generated between the movable steel plate and the fixed steel plate, and the working condition of the fixed steel plate in static sinking in the soil layer is simulated; comprehensive pressure data transmitted by a soil layer and a water body and borne by the fixed steel plate are collected in real time through pressure sensing pieces arranged on the fixed steel plate; the device comprises a test box body, a fixed steel plate, a pressure sensor arranged on the fixed steel plate, a lifting mechanism and a movable steel plate which are used as physical carriers for implementing the method, according to the method and the device, the problem of lack of a simulation scheme for the static sinking process of the offshore engineering prefabricated structure in the prior art is solved.

The invention discloses a method for measuring waves in a geotechnical centrifuge. According to the measuring method, a wave making model box, a camera and a light source are installed in a geotechnical centrifuge hanging basket, a wave making unit is installed on the wave making model box and used for beating the water surface to form waves, and a plurality of calibrated pore pressure sensors are installed at the bottom of the wave making model box; the light source, the camera, the porous sensor and the geotechnical centrifuge data acquisition system are connected with the signal processing unit through the signal transmission unit; wave making, light source irradiation and camera shooting images are transmitted to the signal processing unit through wave making of the wave making unit, and finally wave height parameters of waves are obtained. The method is a non-contact method for measuring the parameters of the waves in the geotechnical centrifuge, the disturbance of a conventional hypergravity field to a wave height meter is avoided, the measurement precision is improved, and the parameters such as the wave height, the wavelength, the period and the frequency of the waves can be comprehensively obtained.

The application discloses a large two-way water flow test platform water flow regulating device, which is composed of a device body, and comprises a first test area, a second test area, a steady flow mechanism, a first outflow mechanism and a pool; the pool is provided with the first test area and the second test area; one side of the pool is provided with the steady flow mechanism, and the other side of the pool is provided with the outflow mechanism; wherein: the steady flow mechanism comprises a second outflow mechanism, a rectifier box, a water stabilizing area, a water stabilizing grid and a water discharge mechanism; the rectifier box is connected with the water stabilizing area arranged on the pool through a support frame; the rectifier box is connected with the water stabilizing grid through a water stabilizing unit; the water stabilizing grid is connected with the first test area and the second test area through water supply pipelines respectively; the water discharge pipeline is connected with the water stabilizing area, and the application can regulate two-way water flow in a smaller range and ensure that the boundary conditions of a simulation area are consistent with the actual conditions.

The invention discloses a group embedded part row fixing support and a construction method thereof, the group embedded part row fixing support comprises two bases, the two bases are oppositely arranged, vertical through holes are formed in the bases, and first supporting parts are installed in the vertical through holes in a liftable mode; the support body comprises two longitudinal beams arranged in the same direction, a plurality of cross beams and stand columns, the cross beams are connected between the two longitudinal beams, the cross beams are arranged at intervals in the length direction of the longitudinal beams, the two longitudinal beams and the two adjacent cross beams define a supporting platform, the longitudinal beams are erected on the base through the stand columns, and the embedded parts are embedded in the reinforced concrete foundation structure. The support body is connected to a steel bar structure of a reinforced concrete foundation structure and replaces part of main bars of the steel bar structure. And the limiting plate is vertically arranged on the longitudinal beam, a horizontal through hole is formed in the limiting plate, a second supporting piece is adjustably installed in the horizontal through hole, and the second supporting piece abuts against the side portion of the embedded part. The problems that an existing large-size and large-load technological embedded part is large in installation precision control difficulty and low in installation efficiency are solved.

The invention relates to the technical field of hydraulic engineering, in particular to a rotary water tank muddy water test system which comprises a base station, a vertical frame and an annular water tank, the annular water tank is arranged on the base station, the vertical frame is fixed to the base station and located above the annular water tank, a motor is assembled on the vertical frame, and the output end of the motor is fixedly sleeved with a main shaft; the main shaft is rotationally installed on the vertical frame through a bearing seat and extends into a central cavity of the annular water tank, a rotating plate located above the annular water tank is fixedly installed on the main shaft, and a plurality of sets of vertical rods are arranged on the rotating plate. The transmission mechanism drives the vertical rods to synchronously achieve revolution, forward and reverse rotation and up-down movement, the spiral blades are driven to conduct multi-dimensional composite stirring on water in the annular water tank, and water flow is in a special wavy flowing form of natural water. A migration scene of silt and pollutants in a natural environment can be reduced, and a simulation environment close to reality is provided for a test.

The invention relates to the technical field of road traffic fire protection, and discloses an all-terrain traffic accident disposal practical training base, which comprises a simulation tunnel arranged on one side in the base and comprising an arched tunnel section and a rectangular tunnel section which are communicated with each other; the simulated road comprises an entrance intersection area, an entrance channel, a long road section and a bridge section; the system comprises a simulated light rail, a falling simulation area, a simulated underground garage and a simulated river. According to the invention, an all-terrain and multi-scene comprehensive road traffic accident handling base is designed for the actual needs of road traffic fire-fighting practical training, various traffic road terrains and traffic reality scenes are simulated and arranged in the base, the training scenes are comprehensive and sufficient, the spatial position layout is reasonable and compact, the training effect and efficiency can be improved, and the practical training effect and efficiency can be improved. On the premise of ensuring sufficient setting of the simulated terrain scene, the occupied ground space is reduced to the greatest extent, and the construction cost is saved.

The invention discloses an offshore single-pile fan hydraulic physical model system and a simulation method thereof, and solves the problems that the existing numerical simulation boundary conditions are simplified too much, and a small-scale physical model test is difficult to meet a dynamic similarity criterion, so that simulation distortion is serious. The invention designs and establishes a large-scale offshore single-pile fan hydraulic physical model system. The model integrates a sea wind simulation device, a wave simulation device, an ocean current simulation device and a fan vibration simulation device. Single-load and multi-load coupling tests are respectively carried out, vibration acceleration data are acquired by utilizing a sensor array arranged along the height of the tower drum, and high-precision fitting is carried out on the distribution rule of the vibration acceleration along the height by adopting a quadratic polynomial, so that the vibration characteristics of the tower drum under the action of different loads are systematically revealed; and reliable test data support is provided for safety design and fatigue analysis of the offshore single-pile type fan supporting structure.

The invention discloses a device, a system and a method for simulating sediment dredging of a dredger, and belongs to the technical field of dredging. A device for simulating sediment dredging of a dredger comprises a base and a simulation water tank, the simulation water tank comprises a bottom plate, two flexible metal side plates and two baffles, the bottom plate is fixedly arranged at the top of the base, the two flexible metal side plates are symmetrically arranged in the width direction of the bottom plate, and the two baffles are symmetrically arranged in the length direction of the bottom plate; a first elastic telescopic rod is arranged between the supporting frame and the base, and an adjusting assembly used for adjusting the shape of the flexible metal side plate is fixedly arranged on the supporting frame; the shape of the simulated water tank can be adjusted according to the actual dredging channel condition, so that the actual channel dredging influence range is accurately predicted and evaluated, a correct dredging mode and a correct desilting treatment scheme are selected, meanwhile, a water tank model does not need to be independently manufactured before channel dredging every time, the dredging simulation progress is conveniently improved, and the dredging efficiency is improved. And the simulated dredging cost is reduced.

The utility model relates to the technical field of hydraulic model experiment facilities, and discloses a three-dimensional grating reinforced earth and rockfill dam overtopping experiment device which comprises an earth and rockfill dam model, a glass water tank, a water circulation filtering assembly and a data monitoring system. A three-dimensional geotechnical steel-plastic grating is installed in a soil piling area of the earth and rockfill dam model, a displacement sensor and a seepage monitoring sensor are installed on the surface of the three-dimensional geotechnical steel-plastic grating, a hydraulic sensor is installed at the upstream slope toe of the earth and rockfill dam model, and a groove is formed in the longitudinal glass surface of the glass water tank. And an adjusting template capable of setting an angle is mounted at the top of the glass water tank. The integrality of the earth and rockfill dam can be enhanced by placing the three-dimensional grating in the earth and rockfill dam, then the two angle adjusting rotating wheels on the longitudinal glass are adjusted to form the earth and rockfill dams with different slope angles and different top widths, overtopping experiments of the different earth and rockfill dams are achieved, and the influence of water permeation on the experiments can be reduced by carving the grooves in the water tank glass.

The application discloses a kind of compartmentalization type wave overtopping measurement method and measuring device.The device includes a plurality of cascaded measurement cabin, each measurement cabin is divided into front pool and rear store by the partition with communication hole, wave height instrument is arranged in rear store.The method includes: obtaining the water level data of rear store;Based on the time rate of change of water level data and the preset partition hydraulic transfer function, the instantaneous total amount of water storage of measurement cabin is determined;According to the time rate of change of instantaneous total amount of water storage, the instantaneous wave overtopping flow entering measurement cabin is obtained by inversion;Based on the time distribution characteristics of instantaneous wave overtopping flow, single-wave wave overtopping event is identified and single-wave wave overtopping volume is calculated.The application solves the contradiction between large-capacity trapping and high-precision single-wave trapping by the combination of physical compartmentation and algorithm inversion, and realizes the synchronous measurement of average wave overtopping and single-wave maximum wave overtopping.

The utility model relates to the technical field of building models, and discloses a hydraulic building model, which comprises a base and a mounting plate bolted to the top of the base, and further comprises a fixing plate movably connected to an inner cavity of the mounting plate, a glass cover is arranged at the top of the fixing plate, and a dismounting mechanism is arranged on one side of the fixing plate. A fixed shell is bolted to the surface of the mounting plate; through the cooperation of the fixing plate and the dismounting mechanism, the glass cover can be mounted in the mounting plate, a worker can conveniently mount the fixing plate and the glass cover, the labor amount of the worker is reduced, and meanwhile, through the cooperation of the transmission mechanism, the threaded rod and the sleeve, the glass cover can be conveniently dismounted. And a supporting scraper and a cleaning plate can move on the surface of the glass cover, the surface of the glass cover can be cleaned, a worker can conveniently clean the center of the top of the glass cover, and therefore the safety of the worker is improved.

The invention relates to a water and sediment process simulation detection system, and belongs to the technical field of hydraulic model tests. The device comprises a workbench, a water-sand mixing box, a communicating box body, a transparent observation box, a water receiving box and a backflow mechanism, the water-sand mixing box is arranged on the workbench, and an inner cavity of the water-sand mixing box is used for containing water-sand mixed liquid. The communicating box body is arranged on and communicated with the right side of the bottom of the water-sand mixing box; the transparent observation box is arranged on the right side of the communicating box body, the left end of the transparent observation box is communicated with the right end of the communicating box body, a gate valve for controlling the size of a flow channel section is arranged at the communicating position, and a bionic river channel is arranged on the inner wall of the transparent observation box; the water receiving box is arranged below the water outlet of the transparent observation box in a matched mode and provided with a top opening used for being in butt joint with the water outlet of the transparent observation box. The backflow mechanism comprises a circulating pump, the water inlet end of the circulating pump is connected with the water receiving box, and the water outlet end of the circulating pump is connected with the water-sand mixing box through a backflow pipe. The device can conveniently simulate the influence of the sand-containing water flow on the river channel.

The utility model discloses a longitudinal gradient adjusting system for a test water tank, which is characterized by comprising a supporting seat positioned in the middle of the lower surface of a supporting bottom plate of the test water tank, and the middle of the supporting bottom plate is hinged and mounted on the supporting seat in a front-back rotating manner; supporting adjusting mechanisms capable of achieving height linkage adjustment are further downwards installed on the lower surfaces of the front end and the rear end of the supporting bottom plate. The utility model has the advantages that the longitudinal gradient adjustment of the water tank can be conveniently and quickly realized, and the related scientific research and teaching efficiency is improved.

The present application provides a kind of heap slag self-leveling slag collecting pit and construction method, the pit bottom groove is equipped in the slag collecting pit, the size of the pit bottom groove is matched with the volume of the broken slag generated by the rock plug body blasting, and the opening edge of the pit bottom groove is embedded with pumping concrete pump pipe.The slag collecting pit construction method comprises the following steps: S1. making rock plug body blasting hydraulic model;S2. run the model, and get simulated slag heap after blasting;S3. according to the size parameters of the simulated slag heap, set the pit bottom groove in the slag collecting pit;S4. embed the pumping concrete pump pipe at the opening edge of the pit bottom groove;S5. the rock plug body is blasted, and the obtained slag heap is backfilled into the pit bottom groove;S6. by the embedded pumping concrete pump pipe, self-compacting concrete is poured on the surface of the slag heap, which solves the technical problem of underwater slag heap not easy to transport and clean in the prior art.

The utility model discloses a flow state regulation and control ecological river channel based on a Tesla valve. The flow state regulation and control ecological river channel based on the Tesla valve is suitable for an inland river communicated with an outer river channel with pollution load impact. River banks on the two sides of the inland river are river bank slopes which are provided with a plurality of inwards-concave zigzag structures in the water flow direction. Vegetation islands are arranged in all the sawtooth-shaped structures, and the inland river is divided into a Tesla valve structure. According to the river channel flow state simulation method, a hydrodynamic module in MIKE software, namely an HD module, is adopted for river channel flow state simulation. According to the utility model, the zigzag river bank slope is constructed and the vegetation island is embedded and built, so that the impact of the flow and pollution load of the peripheral river on the inland river under the condition of reciprocating flow is regulated and controlled.

The present application provides an open type landslide debris flow staggered blocking dam group based on the movement characteristics and accumulation deformation law of landslide debris flow, the blocking dam group comprises a plurality of blocking dams, each blocking dam is arranged staggeredly in a channel downstream of a landslide body, the intersection angle between each blocking dam and the channel is 30-60 degrees, the end of the blocking dam close to the edge of the channel is recorded as the head end, the end of the blocking dam close to the center of the channel is recorded as the tail end, and the head end of each blocking dam is located upstream of the tail end of each blocking dam. The open type landslide debris flow staggered blocking dam group can effectively reduce the movement speed and kinetic energy of the particles in the landslide debris flow, can reduce the accumulation of the landslide debris in the protection structure while achieving energy dissipation, can effectively reduce the bearing capacity of a single blocking dam, can enhance the safety and stability of the blocking dam group, and provides a new way for disaster prevention and mitigation of landslide debris flow.

The invention discloses a hydropower station ship lift ship chamber entity fire simulation test method. The method comprises the steps that a test platform with fireproof protection is built at a preset position of a ship lift ship chamber, and multiple types of measuring devices are arranged; carrying out a cold smoke pre-test through the controlled smoke source, and verifying the effectiveness of the measuring device; setting a plurality of groups of working conditions including different ship reception chamber elevations and ventilation states, arranging a fire source device, injecting environment-friendly fuel, adjusting the ship reception chamber to a preset state, igniting the fuel, and collecting data such as temperature, wind speed, flue gas and toxic gas concentration in real time; comparing and analyzing test data and a numerical simulation result, determining a fire spreading rule and influence on personnel evacuation, and optimizing a prevention and control scheme; the ship fire scene under the special working condition of the ship lift can be accurately reproduced, fire characteristic parameters are quantified, a scientific basis is provided for optimization of a prevention and control scheme, the safety of the ship lift and a dam is guaranteed, the test process is standard, the universality is high, and the method can be popularized and applied to different large vertical ship lifts.