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97 results about "Canal lock" patented technology

A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself (usually then called a caisson) that rises and falls.

Simulation simulation method and device for joint scheduling of multiple ship locks in intersection water area and electronic equipment

The invention discloses an intersection water area multi-ship-lock combined dispatching analogue simulation method and device and electronic equipment, and relates to the field of ship lock emulation.The method comprises the steps that a canal intersection water area multi-ship-lock system simulation model is built, and the model at least comprises a plurality of ship locks dispatched in a combined mode, configuring a ship traffic flow operation strategy of the multi-ship-lock system simulation model of the canal intersection water area, operating the multi-ship-lock system simulation model of the canal intersection water area, and counting ship operation data indexes, gate entering and exiting waiting time indexes, ship lock traffic flow indexes and navigation encounter frequency indexes of ships at the intersection to obtain a model simulation operation result; based on the model simulation operation result, the ship lock chamber plane scale, the ship lock scheduling rule, the intersection water area navigation rule and the parking area capacity are adjusted. The technical problem that a ship lock operation and water area navigation simulation model in the prior art focuses on performance evaluation of a single facility and cannot reflect a multi-ship lock operation mode of an intersection water area is solved.
Owner:WATER TRANSPORT PLANNING & DESIGN INST

Multistage water-saving ship lock navigation safety guarantee method and system based on digital twinning

The invention discloses a digital twinning-based multistage water-saving ship lock navigation safety guarantee method and system, and the method comprises the steps: collecting multi-source sensing data, generating an alignment data flow and a quality evaluation report, and updating a digital twinning state; by means of the aligned data flow and the quality evaluation report, through non-contact observation and probability fusion, mooring force probability distribution is obtained; based on the digital twinning state and the alignment data flow, identifying a hydraulic impulse response and adopting hydraulic phase lock tracking to generate a vibration suppression opening template; and in the digital twin system, integrating the mooring force probability distribution and the vibration suppression opening template, executing distribution robust random control barrier optimization, and outputting an executable valve track. According to the method, water hammer oscillation can be actively inhibited, robust safety guarantee is provided for uncertain mooring force, and the navigation safety of the large water-saving ship lock is effectively improved.
Owner:NANJING HYDRAULIC RES INST

Multistage ship lock drainage and navigation multiplexing system and operation method thereof

The invention discloses a multi-stage ship lock drainage and navigation multiplexing system and an operation method thereof. The system comprises a first-stage ship lock chamber section located on the upstream, a last-stage ship lock chamber section located on the downstream and a plurality of middle-stage ship lock chamber sections located between the first-stage ship lock chamber section and the last-stage ship lock chamber section. Each stage of ship lock chamber section is composed of a lock chamber bottom plate and ship lock walls arranged on the two sides of the lock chamber bottom plate. A water conveying gallery is arranged in the lock wall of the ship lock, and the middle of the water conveying gallery communicates with a branch gallery arranged in a lock chamber bottom plate through a T-shaped pipe. A plurality of water outlet holes are formed in the tops of the branch galleries; an energy dissipation pier group formed by a plurality of energy dissipation piers is arranged at the water outlet hole in the lock chamber bottom plate; and a flip bucket is arranged at the downstream end of each stage of lock chamber section of the ship lock. According to the multi-stage ship lock collaborative continuous energy dissipation scheme, the effects of improving the space utilization rate, saving the land area and reducing the construction cost are achieved.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD +1

Redundant measurement value transmitting method of ship lock chamber single-point water level gauge

The application discloses a redundant measurement value transmitting method for a single measuring point water level gauge of a ship lock chamber. The method comprises the following steps: simultaneously detecting the water level of a certain measuring point in the ship lock chamber by N water level gauges, obtaining multiple water level detection values of the measuring point at a certain time; determining a water level deviation threshold G2 of the measuring point and a detection value deviation threshold G3 of the multiple water level gauges according to a ship lock chamber water level change threshold G1 and a water level gauge detection range R; comparing the multiple water level detection values Vn of a certain measuring point with the determined water level deviation threshold G2 of the measuring point; performing difference value operation on the obtained reasonable water level detection value Vm; selecting N1 water level detection values as the water level detection basic data of the measuring point, performing secondary processing, and obtaining the water level detection effective value Ve of the measuring point. The application discloses a redundant measurement value transmitting method for a single measuring point water level gauge of a ship lock chamber. The ship lock single measuring point adopts multiple water level sensors for redundant detection, voting verification, error processing and detection value transmission of multiple detection values, and reliable and stable water level data is provided for the system.
Owner:THREE GORNAVIGATION AUTHORITY

A ship lock excavation blasting vibration control method and system

This invention relates to the field of water conservancy engineering construction technology, and discloses a method and system for controlling blasting vibration during lock excavation. By collecting information on the geological hardness of rock strata and the distance to surrounding buildings, and combining this with finite element analysis to simulate the blasting energy distribution, a dynamic matching mechanism for borehole depth and charge quantity is constructed. This method overcomes the limitations of traditional empirical parameter settings and uses iterative simulation and optimization algorithms to achieve coordinated adjustment of borehole depth and charge quantity. For example, in areas with high rock hardness, by increasing the borehole depth and matching a segmented charge strategy, the blasting energy is uniformly released in the deep rock mass, effectively reducing the peak ground vibration and avoiding structural damage to adjacent buildings. Furthermore, by introducing multi-dimensional data analysis and multi-scenario simulation verification mechanisms, it can flexibly cope with complex working conditions such as uneven rock hardness, topographical undulations, adjacent water bodies, or dense building clusters.
Owner:THREE GORGES WATER TRANSPORT NEW CHANNEL (HUBEI) CO LTD

Anti-abrasion solid waste-based concrete for canal ship lock gallery and preparation method of anti-abrasion solid waste-based concrete

The invention discloses abrasion-resistant solid waste-based concrete for a canal lock gallery and a preparation method of the abrasion-resistant solid waste-based concrete, and relates to the field of hydraulic construction materials.According to the abrasion-resistant solid waste-based concrete for the canal lock gallery, natural aggregate and part of cement are replaced with solid waste, consumption of natural gravel and cement is greatly reduced, the hydration temperature rise and the cracking risk are reduced, and the service life of the concrete is prolonged; and regenerated steel fibers and nano-silica are added, the regenerated steel fibers construct a three-dimensional support network, and the nano-silica optimizes pore and interface bonding, so that densification of the microstructure of the concrete is realized, the abrasion resistance is improved, solid waste recycling is realized, and the concrete has both environmental benefits and engineering values.
Owner:GUANGXI UNIV

Solid-liquid separation device for dredging mud in ship lock approach channel

The invention relates to a solid-liquid separation device for dredging mud in a ship lock approach channel, and belongs to the field of solid-liquid separation devices. The device comprises a separation box for the desilting machine and a feeding hopper arranged at the top of the separation box for the desilting machine. A coarse separation unit is arranged below the feeding hopper, and a fine separation unit is arranged at the bottom of the separation box for the dredging machine. The fine separation unit comprises a filter screen cylinder and two extrusion filter cylinders; semi-arc grooves are uniformly formed in the bottom of the separation box for the dredging machine; the filter screen cylinder is rotationally arranged in the semi-arc groove; the two extrusion filter cylinders are fixedly arranged on the two sides of the separation box for the dredging machine correspondingly and rotationally connected with the two ends of the filter screen cylinder correspondingly. A discharge hole is formed in one end, deviating from the filter screen cylinder, of the extrusion filter cylinder; a sealing unit is arranged at the discharge hole; the sealing unit is used for opening or closing the discharge hole; the filter screen cylinder is communicated with the two corresponding extrusion filter cylinders, and a working space is formed; a filter pressing unit is arranged in the working space in a sliding manner; the solid-liquid separation device has the technical effects of the solid-liquid separation device for ship lock approach channel dredging mud.
Owner:JIANGSU PROVINGIAL TRANSPORTATION ENG GRP +1

Method and system for analyzing influence of water transportation engineering construction on ecological integrity of river gallery

The invention relates to the technical field of water transportation engineering, in particular to a method and system for analyzing the influence of water transportation engineering construction on the ecological integrity of a river corridor. Comprising the steps that monitoring equipment is deployed to collect hydrodynamic parameters and ecological data of a river gallery, the influence of water transportation engineering on a river gallery ecological system is evaluated based on the collected data, and the method further comprises the steps that composite hydrodynamic disturbance generated by ship navigation and ship lock dispatching is analyzed and quantified through multi-mode interference coupling; establishing a vegetative level transfer model of benthic organisms and planktons to evaluate a cascade effect of disturbance; a dynamic ecological integrity index is calculated in combination with the composite hydrodynamic disturbance and the cascade effect, and a space-time dynamic evaluation result of the ecological integrity of the river gallery is output according to the dynamic ecological integrity index; according to the method, the ecological integrity of the river gallery can be scientifically evaluated.
Owner:TIANJIN RES INST FOR WATER TRANSPORT ENG M O T +1

Intelligent pipe cooling circulation control system and method based on ship lock construction

The application discloses an intelligent pipe cooling circulation control system and method based on ship lock construction, which comprises the following steps: dividing a ship lock construction structure into A pipe cooling circulation control subareas; covering the A pipe cooling circulation control subareas by B cooling circulation pipelines; receiving multi-dimensional data of each pipe cooling circulation control subarea by each edge key control node, and transmitting the data to a cloud cooling control service; after receiving the data, the cloud cooling control service generates A cooling circulation load demand risk coefficients based on a first deep learning algorithm; if it is judged that at least one of the A cooling circulation load demand risk coefficients is at risk, then the B cooling circulation pipelines are subjected to pipe cooling circulation control based on a second algorithm, and a PID control algorithm is used to adjust the cooling water flow and the cooling water temperature of the pipelines; the application realizes precise pipe cooling circulation control adjustment, improves the ship lock construction quality and reduces the risk of concrete hardening cracking through deep learning algorithm prediction and monitoring and the introduction of an unmanned aerial vehicle for the inspection of the outer surface of the cooling pipe.
Owner:THE THIRD ENG CO LTD OF CCCC FOURTH HARBOR ENG +1

Sunken water-saving double-line ship lock

The utility model provides a kind of sunken water-saving double-line ship lock, it is related to double-line ship lock technical field.Water flow when flowing between lock chamber and corridor, utilize multiple branch hole to disperse water flow, can effectively reduce transverse velocity and transverse impact force;Water flow when flowing between two lock chambers, utilize two U-shaped corridors, which are connected with first corridor and third corridor, and second corridor and fourth corridor, as passageway, two U-shaped corridors are arranged in staggered manner, but shape specification and length are consistent, which can not only speed up water exchange speed between two lock chambers, but also ensure that time and distance of water flow in two U-shaped corridors are the same, to meet the requirement of synchronism;Water level in two lock chambers is synchronously raised and lowered, water surface is stable and has little fluctuation, which is conducive to the safety of ships and normal operation of ship lock.
Owner:ANHUI SURVEY & DESIGN INST OF WATER CONSERVANCY & HYDROPOWER

Control method of high-water-head multi-stage ship lock valve

The invention discloses a control method for a high-water-head multi-stage ship lock valve. The control method comprises the steps that locking signals triggered by the closing state of lock valves of a lock head, an upstream lock head and a downstream lock head of a ship lock respectively are collected; in response to the situation that locking signals of the lock head, the upstream lock head and the downstream lock head are all collected, a valve opening instruction is issued to open a valve of the lock head, and a water conveying process is started; in the water conveying process, if it is detected that the valve of the lock head is not located at the final closing position and any locking signal is lost, an emergency valve closing instruction is issued; in the valve closing process, the pressurization valve closing stage is executed; and when it is detected that the valve reaches the preset lower sliding position, the self-weight valve closing stage is switched to till the valve is closed to the closing end position. Safety and reliability of operation of ship lock equipment are improved, and powerful technical guarantee is provided for safe and efficient operation of the high-water-head multi-stage ship lock.
Owner:HARBIN ENG UNIV +1

Intelligent collaborative control method for ship lock water delivery based on hydraulic simulation

The application discloses a ship lock water delivery intelligent collaborative control method based on a hydraulic simulation and relates to the technical field of ship lock hydrodynamics. The application collects hydraulic data such as speed, acceleration and blockage ratio in the ship water delivery process, constructs discrete hydraulic states and calculates attribution coefficients; in combination with historical transfer frequency and physical conservation law verification, a state transfer matrix reflecting state evolution law is established; the future hydraulic state probability distribution is deduced by using a Markov chain model, and then a mooring force threat coefficient is calculated to quantify the risk. The method dynamically adjusts the valve opening degree based on the prediction result, realizes intelligent collaborative control with prediction ability, changes passive response into active prevention, and improves the operation safety and efficiency of the ship lock.
Owner:CHONGQING JIAOTONG UNIV +1

Ship scheduling method, device and equipment under one-way navigation and storage medium

The application discloses a ship scheduling method under one-way navigation. The method comprises the following steps: determining the number of ships needing to be scheduled in anchorage under the condition of uninterrupted operation of a ship lock based on a navigation control period of a preset water area and operation parameters of the ship lock; determining a constraint condition of navigation of the preset water area based on the navigation control period of the preset water area, an opening frequency of the ship lock, the operation parameters of the ship lock and anchorage capacity to be locked; constructing a ship scheduling model of the preset water area with the maximum number of ship lock passing under the constraint of the constraint condition of navigation of the preset water area; and determining a ship scheduling scheme in the preset water area based on the ship scheduling model and the number of ships needing to be scheduled in anchorage. The application can guarantee uninterrupted operation of the ship lock under one-way navigation in the preset water area and can also guarantee navigation efficiency of the preset water area.
Owner:CHONGQING SUPERLUCY SCI & TECH CO LTD

Construction method for building ship lock mass concrete structure through bridge demolition component

The invention discloses a construction method for building a ship lock mass concrete structure through bridge demolition components, and relates to the technical field of civil engineering. The method comprises the following steps: screening a concrete T beam or a concrete cover beam in bridge demolition as a precast block, carrying out lossless cutting and hoisting to a pretreatment field, and carrying out zoning, grading and directional scabbling treatment on a contact interface of a component and post-poured concrete, so that a friction gradient is formed on the interface, and the component realizes self-stabilization through friction in the early stage of construction. And then the concrete is poured layer by layer, so that deformation coordination of the new and old concrete is realized in the hardening and temperature deformation stages of the concrete to form an integral ship lock structure. According to the construction method, cooperative work of the prefabricated component and mass concrete is achieved through interface behavior regulation and control, the construction process is simplified, the temperature control anti-cracking performance is improved, and the high-valued utilization level of the bridge demolition component in a hydraulic structure is improved. Meanwhile, resource utilization of the construction waste is achieved, and new material consumption and engineering cost are effectively reduced.
Owner:GUANGXI UNIV

A Method and System for Ensuring Navigation Safety of Multi-Level Water-Saving Ship Locks Based on Digital Twins

This invention discloses a method and system for ensuring navigation safety in a multi-level water-saving ship lock based on digital twins. The method includes: collecting multi-source sensor data, generating an aligned data stream and quality assessment report, and updating the digital twin state; using the aligned data stream and quality assessment report, obtaining the mooring force probability distribution through non-contact observation and probabilistic fusion; identifying the hydraulic shock response based on the digital twin state and the aligned data stream, and generating a vibration-suppressing opening template using hydraulic phase-locked tracking; within the digital twin system, integrating the mooring force probability distribution and the vibration-suppressing opening template, performing sub-Bruker stochastic control barrier optimization, and outputting an executable valve trajectory. This invention can actively suppress water hammer oscillations and provide robust safety guarantees for uncertain mooring forces, effectively improving the navigation safety of large water-saving ship locks.
Owner:NANJING HYDRAULIC RES INST

A protective channel applied to a ship lock

The utility model provides a kind of applied to the protective passageway of ship lock, belong to building protection equipment technical field. Including substrate, guardrail and buckling plate, the substrate is constituted by bottom frame and steel net fixedly laid in bottom frame;The guardrail is fixed in the top of bottom frame both sides;The buckling plate is fixed in one end of bottom frame, and the buckling plate is set as L shape, the frame of the bottom frame that can accommodate between the buckling plate and bottom frame end wall inserts from top to bottom. The frame bottom of the end of bottom frame away from buckling plate is equipped with adaptive slot, and the adaptive slot can accommodate buckling plate bottom insertion. The utility model is positioned by the preliminary insertion of buckling plate and adaptive slot, the plug-in cooperation of pin rod and pin hole and the thread connection of stud and nut, so that multiple protective passageways can be flexibly spliced according to actual needs, form protective passageway system of different lengths and shapes, meet the needs of various construction scenes, and multiple fixing between multiple protective passageways is realized, greatly improve the stability and reliability of connection.
Owner:HANGZHOU TRANSPORTATION DEV GUARANTEE CENT +1

A method of passing a ship through a lock

The present application provides a ship lock method, which combines multiple ships in an array, connects through combined array towboats, forms a ship tow array, and then performs overall high-efficiency towing through the lock; changes the existing low-efficiency lock method of entering, moving, and exiting each lock chamber one by one, greatly improves the lock efficiency without changing the structure of the ship lock, uses the control terminal to control the multiple combined array towboats to tow the ship tow array, improves the automation and intelligence of the lock, and realizes accurate control of the output power and rotation angle of the full-rotation rudder of each combined array towboat; and has the advantages of simple structure, low maintenance cost, short maintenance time, low difficulty, and no influence on the overall lock efficiency of the ship tow array.
Owner:WUHAN DELTA DINGKU TECH CO LTD

Channel ship lock big data scheduling analysis decision-making system

The invention discloses a channel ship lock big data scheduling analysis decision-making system, which comprises a data acquisition module used for acquiring multi-source heterogeneous data of a ship and preprocessing the multi-source heterogeneous data; the deep Bayesian modeling module is used for constructing a Bayesian network model and outputting a scheduling prediction result; the scheduling optimization module is used for generating an optimal scheduling strategy by using a pigeon inspired optimization algorithm; the scheduling execution module is used for executing a scheduling strategy and collecting feedback data in real time; the model updating module is used for receiving feedback data and performing parameter updating and incremental learning on the deep Bayesian network model; and the closed-loop control module is used for setting scheduling optimization periods and automatically triggering re-execution of the deep Bayesian modeling module and the scheduling optimization module in each period. Through fusion of the deep Bayesian network and the improved pigeon inspired optimization algorithm, accurate prediction and intelligent optimization of the navigation channel ship lock scheduling process are realized, and the passing efficiency and the system adaptive capability are improved.
Owner:ANHUI GUANGCHENG TECH CO LTD

Ship lock gate synchronous jacking device

The utility model provides a ship lock gate synchronous jacking device which comprises a U-shaped base arranged in a river channel, a gate arranged in the base, a connecting plate fixed above the gate and extending out of the two sides of the base, hydraulic cylinders arranged below the two sides of the connecting plate and distance measuring sensors arranged on the connecting plate above the hydraulic cylinders. An electro-hydraulic servo valve is further arranged in a jacking hydraulic loop of the hydraulic cylinder, a distance measuring sensor is arranged above the hydraulic cylinder, the electro-hydraulic servo valve is arranged in an extending oil way of the hydraulic cylinder, and the flow of the electro-hydraulic servo valve is fed back and adjusted by comparing the change value of the distance measuring sensor on the hydraulic cylinder. Therefore, the purpose of synchronous movement of the hydraulic cylinders is achieved.
Owner:HUBEI ZHENXING GANGHANG ENG CO LTD

Variable water level adaptive scheduling method for dispersed step water-saving ship lock

The application discloses a variable water level adaptive scheduling method for a dispersed cascade water-saving ship lock, comprising the following steps: collecting the upstream navigation water level in real time to determine the actual working water head of the upstream single-stage ship lock; comparing the actual working water head with a preset critical water head sequence to determine the number of reference water-saving pools that should be completely activated; based on the balance constraint of the downstream multi-stage continuous ship lock water demand and the upstream single-stage ship lock discharge, calculating the filling and discharge depth adjustment coefficient of the i-th water-saving pool for compensating the current water level deviation; controlling the standard filling and discharge of part of the water-saving pools according to the coefficient, the partial filling and discharge of the i-th water-saving pool, and discharging the remaining water to the downstream first-stage ship lock; if the remaining water is insufficient to meet the water demand of the first-stage ship lock in the downstream continuous cascade ship lock, then controlling the complementary water filling valve of the downstream first-stage ship lock to perform complementary water filling. The application realizes the accurate balance of the upstream and downstream ship lock water quantity under the variable water level condition.
Owner:NANJING HYDRAULIC RES INST +1

Harbour system

A harbour system (1) comprises a first harbour section (100) and a second harbour section (200), wherein the first harbour section (100) has at least one berth (4) for boats, at least one lock (5) having at least one lock chamber (5a, 5b) each having two lock gates, and a hydropower plant (2), wherein the hydropower plant (1) has at least one wave power plant (2a) having a pump module (16), which is driven by wave movements of a sea section (M), and a pumped storage means (6). The second harbour section (200) of the harbour system (1) has at least one container harbour basin (7) having at least one lock (8) with two lock chambers (8a, 8b), at least one container terminal (10) having at least one container crane unit (20) and at least one further pumped storage means (6a).
Owner:SADIGHI JACOB

V-type energy dissipator for ship lock dispersion water delivery system and arrangement structure thereof

The application discloses a V-shaped energy dissipator for a ship lock dispersion water delivery system and a layout structure thereof. The V-shaped energy dissipator comprises a V-shaped sill body, the V-shaped sill body comprises two vertical sills, the two vertical sills are vertically arranged and one side of the two vertical sills is correspondingly connected to form a V-shaped structure, and a plurality of first water-permeable holes penetrating through end surfaces of the vertical sills are arranged on the vertical sills. The layout structure comprises a layout structure, a lock chamber surrounded by two lock walls, a plurality of side branch holes arranged on the lock walls, the side branch holes on the two lock walls being arranged in a staggered mode, and a plurality of V-shaped energy dissipators described in the foregoing, the V-shaped sill bodies being arranged in a one-to-one correspondence with the side branch holes, the openings of the V-shaped sill bodies facing away from the side branch holes and the V-shaped sill bodies being opposite to the side branch holes, and the height of the V-shaped sill body being 1-1.1 times the height of the side branch hole. The application can effectively disperse high-intensity jets in the horizontal dimension, weaken the local concentration of turbulent flow, weaken vertical vortices, and thus improve the berthing conditions of ships in the lock chamber.
Owner:CHONGQING JIAOTONG UNIV +1

Water-saving pool structure for water-saving ship lock

The utility model relates to the technical field of water conservancy projects, in particular to a water-saving pool structure for a water-saving ship lock, which comprises a bottom lining, a side slope lining and a lock wall, the bottom lining is arranged at the bottom of a water-saving pool, the side slope lining is arranged on a mountain side slope, and the lock wall is oppositely arranged on the other side of the side slope lining. The two sides of the bottom face lining are connected with the side slope lining and the lock wall correspondingly, and the side slope lining and the lock wall are used for forming the side walls of the water saving pool. The slope lining and the lock wall are used as the pool wall structure of the water-saving pool, the mountain does not need to be deeply excavated to form the water-saving pool in the mountain during construction, the construction work amount of mountain excavation is reduced to a great extent, the construction efficiency is effectively improved, the construction cost is reduced, the topographic conditions of the mountain canyon are utilized, and the construction cost is reduced. The water-saving pool and the lock chamber structure are arranged in the limited space in the canyon in a unified and centralized mode, the occupied area of the water-saving pool and the ship lock is saved, space utilization is more reasonable, and the whole structure of the water-saving ship lock is more compact.
Owner:THE THIRD ENG CO LTD OF CCCC FOURTH HARBOR ENG

Method and device for controlling confined water in ship lock foundation pit based on soil shear strength

The application discloses a ship lock foundation pit confined water control method and device based on soil body shearing strength, and relates to the technical field of ship lock engineering, wherein the method comprises the following steps: calculating the confined water head, the overlying impermeable layer thickness and the initial gushing safety coefficient according to the geological survey data and the foundation pit excavation bottom surface elevation; calculating the soil body shearing strength based on the pre-acquired cohesion and internal friction angle of the overlying impermeable layer soil body; and further calculating the corrected gushing stability safety coefficient. When the corrected gushing stability safety coefficient is less than the preset gushing stability threshold, it is determined that the ship lock foundation pit engineering does not meet the gushing stability requirement, the impermeable layer soil body reinforcement construction parameter is determined, and after construction is performed according to the impermeable layer soil body reinforcement construction parameter, the ship lock foundation pit is subjected to permeation inspection. The application solves the technical problem of high cost of the water interception curtain scheme or the deployment of the water pumping well scheme used by the ship lock foundation pit engineering in response to the imbalance of the confined water in the related art.
Owner:WATER TRANSPORT PLANNING & DESIGN INST

Ship lock safety blocking device and method utilizing hydraulic oil cylinder to dissipate energy

The invention provides a ship lock safety blocking device and method for dissipating energy through a hydraulic oil cylinder. The device comprises lifting mechanisms symmetrically arranged on a lock top, an energy absorption oil cylinder mechanism, a steel wire rope steering mechanism and a steel wire rope guide mechanism arranged in a lock wall gate groove. The lifting mechanism is used for winding, unwinding and braking the steel wire rope; and the steel wire rope passes through the guide mechanism to form a barrier line after being redirected by the steering mechanism. When a ship collides with the steel wire rope, collision force drives the piston rod of the energy absorption oil cylinder to stretch out, kinetic energy of the ship is converted into heat energy by compressing hydraulic oil, and stable buffering and efficient energy dissipation are achieved. The device is simple in structure, convenient to maintain and capable of adapting to water level changes and effectively absorbing high-impact kinetic energy, the reliability and performance of ship lock safety barrier are remarkably improved, and the technical problems that in an existing technical scheme, a barrier device is complex in structure, troublesome to overhaul and maintain, insufficient in barrier performance and the like can be solved.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

A method and device for assisting two-way fish passage in a water conservancy project with a ship lock or fish lock

The present application relates to the field of fish protection in hydraulic engineering, and in particular to a method and device for assisting two-way fish passage in hydraulic engineering with ship locks or fish locks. For hydraulic engineering with ship locks, the water injection mode of the scheduling gate and the jet device is used to induce fish to pass through the ship lock and communicate with the upstream and downstream; for hydraulic engineering with fish locks, the water injection mode of the scheduling jet device is used to improve the efficiency of river filling and the success rate of induction into the river. A jet device for inducing fish is provided to achieve the following beneficial effects: (1) helping hydraulic engineering with ship locks but without fish passage facilities to achieve two-way fish passage; (2) improving the fish passage and stocking efficiency of hydraulic engineering with fish locks; (3) the provided jet device forms a longitudinal fish-inducing water flow with a certain angle near the two side walls, so that the fish can move upstream close to the side wall.
Owner:NANJING HYDRAULIC RES INST

A ship lock water conveying corridor valve hydraulic hoist connecting rod

This utility model provides a hydraulic opening and closing mechanism connecting rod for a water conveyance channel valve in a ship lock, comprising a rod body and a pin. Both ends of the rod body are provided with connecting lifting holes, and the inner wall of the connecting lifting holes is provided with a first arc surface and a second arc surface. The first arc surface is a circular arc surface and is located on the side near the end of the rod body; the second arc surface is located on the side opposite to the first arc surface. The diameter of the inscribed circle of the connecting lifting hole is larger than the diameter of the circle of the first arc surface. The pin is inserted and fixed in the connecting lifting hole at one end of the rod body, and the diameter of the pin is equal to the diameter of the first arc surface. This application improves the connecting rod so that when the upper and lower connecting rods are installed together, the two connecting lifting holes do not need to be precisely aligned before inserting the pin into the connecting lifting holes of the two connecting rods, greatly shortening the installation time and improving the convenience of installation.
Owner:HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD

Method for guiding ship lock to enter and exit

The invention discloses a ship lock entering and exiting guiding method, relates to the technical field of ship lock navigation assistance, and aims to solve the problem that an existing ship enters and exits a ship lock and is prone to collision due to lack of direction guidance. The device comprises a ship lock channel, a horizontal slide way and a lifting slide way which are arranged on the side wall of a ship lock dam body, a lifting traction block in the lifting slide way, a moving platform in the traction block and a light beam guiding assembly on the moving platform, and the lifting traction block and the moving platform can move along the lifting slide way and the horizontal slide way respectively. The ship lock dam body is further provided with a water curtain assembly used for manufacturing a bubble water curtain. According to the guiding method, efficient guiding is achieved through the steps of preparing, guiding, light adjusting, light following, guiding enhancing and lifting protection. Accurate and continuous direction guidance can be provided for ships entering and exiting the lock, the driving difficulty of sailors is reduced, the collision risk is reduced, and the navigation safety and efficiency of the lock are improved.
Owner:THREE GORNAVIGATION AUTHORITY