CN105672190B - Warning cable structure for blocking fish in front of reservoir dam - Google Patents

Warning cable structure for blocking fish in front of reservoir dam Download PDF

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Publication number
CN105672190B
CN105672190B CN201610194765.2A CN201610194765A CN105672190B CN 105672190 B CN105672190 B CN 105672190B CN 201610194765 A CN201610194765 A CN 201610194765A CN 105672190 B CN105672190 B CN 105672190B
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fish
cable
rope
warning
line structure
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CN105672190A (en
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常理
周超洪
魏浪
陈国柱
纵霄
王志光
王火云
唐忠波
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PowerChina Guiyang Engineering Corp Ltd
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PowerChina Guiyang Engineering Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B1/00Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E02B1/006Arresting, diverting or chasing away fish in water-courses or water intake ducts, seas or lakes, e.g. fish barrages, deterrent devices ; Devices for cleaning fish barriers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention discloses a fish blocking warning cable structure in front of a reservoir dam, which comprises a warning cable structure, a reservoir table floating body structure, a fish blocking electric fence structure and an effect observation system, wherein the warning cable structure comprises a main cable, an auxiliary cable, a supporting structure, a cable saddle and an anchorage; the floating body structure of the base table comprises floaters and fixing bolts thereof, and the floaters are respectively fixed on the main cable and the auxiliary cable by the fixing bolts; the fish blocking electric fence structure is characterized in that an electrode array is arranged on the cross section of a fish blocking warning cable to form an electric field; the effect observation system is arranged on the main cable and the auxiliary cable by adopting sonar or ultrasonic waves and is used for observing the fish blocking effect of the cross section of the fish blocking warning cable and the surrounding water area. The invention can meet the requirements of fish blocking in front of the reservoir dam for various requirements of fish blocking section depths and water level changes, has better water flow impact resistance and shock resistance, and has important significance for effectively protecting reservoir fish resources.

Description

Fish warning line structure is blocked before a kind of reservoir dam
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering environmental protection technical field, and fish warning is blocked before being specifically related to a kind of reservoir dam Line structure.
Background technology
Fish is blocked to protect the reservoir stock of fish in order to which the waters such as the water inlet before Hydraulic and Hydro-Power Engineering dam, floodwater releasing port reach Not because the purpose that Hydraulic and Hydro-Power Engineering is run and is damaged, general use set barricade mode to carry out blocking fish, cut in waters Fish, resistance fish, every fish, drive fish, by ensure fish according to the mankind it is default in a manner of or track activity, it is existing more ripe, effectively Barricade have chemical fibre block, fish screen, electric fish screen etc., wherein, it is the most superior that fish effect is blocked with electric fish screen.
Electric fish screen is to block fish section metallic conductor cloth into electric battle array, the stimulation using underwater electric field to fish, When the fish is swum to certain distance, change direction to avoid electric field, so as to reach block fish, cut fish, resistance fish, every fish, drive the mesh of fish , electric fish screen has the characteristics that to block that fish effect is good, management is convenient, service life is long, possesses relatively broad dissemination.
Publication No. CN104594320A Chinese patent discloses one kind and crosses fish formula ship lock and cross fish method, the technical side Electric fish screen described in case is mounted on electric fish screen lift, and the both ends of electric fish screen lift are arranged on lock chamber On left side wall and lock chamber right-side wall, what is taken is the mode for having warned cable to be transformed the water surface before dam, and construction is numerous It is trivial, cost is high, and limited by fish spatial dimension is blocked.
Publication No. CN104082216A Chinese patent discloses a kind of single electric fish screen of suspension type, the suspension type list Arrange electric fish screen be that at least two main rope pylons are vertically arranged in river course side or river course, main rope pylon by main rope tower foundation with Ground is fixed;Main rope is suspended on main rope pylon, and anchor foundation is fixedly connected with the main rope on ground for end, two main rope pylons Between main rope tensioning after natural torsion it is sagging;Each position is connected by hoist cable with crossbeam on main rope, crossbeam keep level;Crossbeam It is connected with multiple suspension assembly, suspension assembly is provided with steel chain or steel wire rope, and electrode tube is installed on steel chain or steel wire rope, and suspension is total Into lower end be connected with the positioning pier of riverbed bottom;Crossbeam is connected by crossbeam rope with cable earth anchorage;Adjacent main Sarasota frame Between main rope, hoist cable, crossbeam, suspension assembly is substantially in a plane.But the single electric fish screen constructing operation of the suspension type Dumb, operation maintenance is inconvenient, and is limited by fabricating yard condition, it is impossible to adapts to various block fish width and SEA LEVEL VARIATION It is required that.
The content of the invention
To solve the above problems, the invention provides fish warning line structure is blocked before a kind of reservoir dam.So that it is guaranteed that reservoir Fish effectively control fish to enter the sensitive or dangerous water such as the dam advance mouth of a river, floodwater releasing port according to default mode or track activity Domain, Reasonable Protection provide science and technology with the management reservoir stock of fish and ensured, reach water resources and hydropower development and the stock of fish Protect the purpose mutually coordinated.
The present invention is achieved by following technical solution.
Fish warning line structure, including warning line structure, storehouse table float structure, electric fish screen knot are blocked before a kind of reservoir dam Structure and effect observation system, the warning line structure include main push-towing rope, auxiliary cable, supporting construction, cable saddle and anchorage, and the cable saddle is set Put at the top of supporting construction, the main push-towing rope, auxiliary cable are connected by cable saddle with grappling;The storehouse table float structure include floating object and Its fixing bolt, the fixing bolt fix floating object on main push-towing rope and auxiliary cable respectively;The electric fish screen structure is to block fish Warn sets electrode array to form electric field on cable section;The effect observation system is to be arranged at main push-towing rope using sonar or ultrasonic wave With auxiliary cable, for being observed to blocking fish warning cable section and the fish effect of blocking of surrounding body.
The electric fish screen structure is by track cable, hang down rope, horizontal rope, mass, electrode array, the pulse power and power transmission cable group Into wherein track cable is arranged on the central point between floating object, and is connected respectively with main push-towing rope with auxiliary cable by wirerope clamp A; Vertical rope top is connected by wirerope clamp A and insulation rubber cushion with track cable, and bottom is connected with mass;Horizontal rope passes through wirerope clamp B is connected with Chui Suo, and mass is arranged on rope bottom of hanging down, and connection electrode battle array is connected with the pulse power by power transmission cable.
The power transmission cable is by asking wire ferrule to be fixed on main push-towing rope and Chui Suo.
The electrode array is to be laid using multiple electrodes pipe in the vertical assembled arrangement mode horizontal with section of section, And be fixed on by wirerope clamp B on vertical rope, each vertical spacing of electrode tube section is 0.5 meter to 2.0 meters, and each electrode tube breaks Face horizontal spacing is 1.5 meters to 5.0 meters.
The electrode tube is zinc-plated electrode tube or brass electrode pipe, and single electrode length of tube is 0.5 meter to 1.5 meters, electrode Pipe diameter is 3 centimetres to 15 centimetres.
The pulse power uses impulse generator, and impulse generator can provide two sections or three sections of partial pressure power supplies, and its is defeated It is alternating current 220V ± 10V, 50Hz to enter voltage range, and input current is less than 6A;Output peak impulse voltage is 220V to 800V's Pulse direct current combine, output pulse frequency be time/second of rate 2 to 10 times/second, output pulse width is at 0.25 millisecond to 0.3 millisecond Between.
The fixing bolt uses U-bolt or double bolts.
Wirerope clamp A uses high-strength stainless steel wirerope clamp, wirerope clamp B common stainless steel wirerope clamps.
The mass is arranged on vertical rope bottom and is given counterweight using steel ball or shot.
The main push-towing rope and auxiliary cable use steel strand wires, steel wire rope or steel wire bunch.
The beneficial effects of the invention are as follows:
Compared with prior art, the present invention is on existing electric fish screen technical foundation, with reference to Hydraulic and Hydro-Power Engineering characteristic, From existing facilities environment protection comprehensive utilization benefit angle is given full play to, the warning cable in the preceding waters in its dam is changed Make, increase the load-bearing load and tensible rigidity of its load-carrying members and attached body structure, and according to the depth for blocking fish cross section different zones Degree and SEA LEVEL VARIATION are actual, can meet electric fish screen installation, cost condition and construction, operation, maintenance requirement, cost is relatively low, applies Work is simple, operation flexibly, safeguard facility, can meet to block fish before the various reservoir dams for blocking fish section depth and SEA LEVEL VARIATION requirement will Ask, possess preferable anti-current-rush and shock resistance, it is significant to the effectively protection reservoir stock of fish.
Brief description of the drawings
Fig. 1 warns line structure schematic diagram to block fish before reservoir dam of the present invention;
Fig. 2 warns the arrangement signal of cable stream central line section electric fish screen structure to block fish before reservoir dam of the present invention Figure;
Fig. 3 warns cable storehouse table float structure partial schematic plan view to block fish before reservoir dam of the present invention.
In figure:1- main push-towing ropes, the auxiliary cables of 2-, 3- supporting constructions, 4- cable saddles, 5- anchorages, 6- floating objects, 7- fixing bolts, 8- are held Weight rope, 9- hang down rope, 10- wirerope clamps A, and 11- insulate rubber cushion, the horizontal ropes of 12-, 13- counterweight steel balls, 14- wirerope clamp B, 15- electrodes Pipe, the 16- pulse powers, 17- power transmission cables, 18- support wire ferrules, the preceding left bank sonar fish deteclor in 19- dams, the preceding left bank sonar in 20- dams are visited Fish device search coverage.
Embodiment
Technical scheme is further described below in conjunction with the accompanying drawings, but claimed scope is not limited to institute State.
As shown in Figure 1 to Figure 3, fish warning line structure, including warning cable are blocked before a kind of reservoir dam of the present invention Structure, storehouse table float structure, electric fish screen structure and effect observation system, the warning line structure refer to according to barricade Integral Loading requirement, by having warned the rigidity of cable, length to transform, including main push-towing rope 1, auxiliary cable 2, supporting construction 3, Cable saddle 4 and anchorage 5, to increase the weight capacity of original warning cable and the stretch capability with range of stage, it is ensured that warning cable Rope can bear barricade Integral Loading, block fish section SEA LEVEL VARIATION and current, wind load caused by additonal pressure influence.The branch Support structure 3 is the important supporting member for blocking fish warning cable, and the main push-towing rope 1, auxiliary cable 2 are by being arranged on the top of supporting construction 3 Cable saddle 4 is connected with grappling 5, and when in use, main push-towing rope 1, auxiliary cable 2 will block fish warning by being arranged on the cable saddle 4 at the top of supporting construction 3 Vertical force component caused by the load of cable is delivered to infrastructure and basement rock, and supporting construction 3 preferably uses armored concrete etc. strong Degree is high, the structure of low cost, its physical dimension form, embedded depth of foundation, intensity, stability etc. need to meet that respective design will Ask.The cable saddle 4 mainly plays support and guide effect to main push-towing rope 1, auxiliary cable 2, and its form mainly has movable bearing support formula and fixed branch A seating, form, the specification of cable saddle 4 should combine the design load grade determination for blocking fish warning cable.
The present invention is on existing ripe electric fish screen technical foundation, with reference to Hydraulic and Hydro-Power Engineering characteristic, from abundant hair Wave existing facilities environment protection comprehensive utilization benefit angle to set out, the warning cable in the preceding waters in its dam is transformed, increases it The load-bearing load and tensible rigidity of load-carrying members and float structure, and become according to the depth and water level for blocking fish cross section different zones Change reality, with reference to electric fish screen installation, cost condition and construction, operation, maintenance requirement, it is proposed that a kind of cost is relatively low, construction Simply, operation is flexible, safeguards facility, and fish warning is blocked before adapting to the various reservoir dams for blocking fish section depth and SEA LEVEL VARIATION requirement Line structure, possess preferable anti-current-rush and shock resistance, it is significant to the effectively protection reservoir stock of fish.
The storehouse table float structure include be arranged on block fish warning cable on be available for electric fish screen load-bearing floating object 6 and Its fixing bolt 7, floating object 6 is fixed on by the fixing bolt 7 to be blocked on fish warning cable, to ensure electric fish screen in various water Safe and stable operation under the situation of change of position.Fixing bolt 7 typically uses bolt pattern, such as U-bolt, double bolts, passes through Installation pedestal on floating object is fixed on main push-towing rope 1, on auxiliary cable 2, and its The concrete specification determines according to main push-towing rope 1, the model of auxiliary cable 2, with full Sufficient electric fish screen design load requirement is advisable, and its material should possess the spy such as waterproof, protecting against shock, anti-stretching, anti-aging, anticorrosive Property.
The electric fish screen structure refers to use electric fish screen mode, by blocking fish warning cable section setting electrode array Electric field is formed, so as to reach the purpose for blocking fish, it is by track cable 8, the rope 9 that hangs down, horizontal rope 12, mass 13, electrode array 15, pulse electricity Source 16 and power transmission cable 17 form;The track cable 8 is the major bearing structures of electric fish screen, between floating object 6 On central point, preferably using the material that steel strand wires, steel wire rope or the steel wire bunch of high-tensile steel wires composition etc. are light, intensity is high, and Connected respectively with main push-towing rope 1 and auxiliary cable 2 by wirerope clamp A10.Specification, the intensity of track cable 8 should meet that electric fish screen structure is set Count class of loading requirement;The vertical rope 9 is the important load-carrying members of electric fish screen, is preferably twisted using the steel of high-tensile steel wires composition The material that line, steel wire rope or steel wire bunch etc. are light, intensity is high, its top is by wirerope clamp A10 and insulation rubber cushion 11 with holding Weight rope 8 is connected, and bottom is connected with mass 13, and it is long 1 meter to 3 meters that rope 9 length of hanging down preferably blocks fish depth than maximum, to meet various water Effectively blocking fish depth requirements under the situation of change of position is advisable, and quantity, spacing, specification, the intensity of the rope 9 that hangs down should meet that electric fish screen designs Class of loading, rigidity and safely, effectively service requirement, wirerope clamp A10 use high-strength stainless steel wirerope clamp.The horizontal rope 12 be the transverse connection structure of electric fish screen, preferably using the material that steel strand wires, steel wire rope or steel wire bunch etc. are light, intensity is high, Connected by wirerope clamp B14 and Chui Suo 9, hanging down the spacing laid on rope 9 preferably between 3 meters to 5 meters, to meet to block fish and water domain The requirement of electric fish screen monolithic stability is advisable under flow field change, and quantity, specification, the intensity of horizontal rope 12 should meet to block fish warning cable peace Entirely, effective service requirement, wirerope clamp B14 common stainless steel wirerope clamps.As shown in Fig. 2 the pulse power 16 is by defeated Electric wire cable 17 is connected with electrode array 15, and power transmission cable 17 is by asking wire ferrule 18 to be fixed on main push-towing rope 1 and Chui Suo 9.
The mass 13 is to ensure electric fish screen metastable positioning in water body flow field direction certain limit Device is general using the steel with enough weight to ensure electric fish screen not because blocking fish and water domain flow and unstability, failure The modes such as ball, shot give counterweight in vertical rope bottom, are reached with ensuring to block fish section and the angle of water body flow field direction in ± 30 ° It is advisable to preferably fish effect is blocked, its material should possess the characteristic such as anti-aging, anticorrosive, and its quantity, specification, weight etc. should meet phase Close designed capacity requirement.
The electrode array 15 is to give cloth in the vertical assembled arrangement mode horizontal with section of section using multiple electrodes pipe If electrode tube typically using materials such as zinc-plated electrode tube, brass electrode pipes, is fixed on by common stainless steel wirerope clamp Hang down on rope;Single electrode length of tube is generally 0.5 meter to 1.5 meters, and electrode pipe diameter is generally 3 centimetres to 15 centimetres, electrode tube Final lengths, diameter etc. should calculate checking according to intercepting fingerling and specification, blocking the conditions such as fish water environment and hydrographic features After determined;Each vertical spacing of electrode tube section is generally 0.5 meter to 2.0 meters, and each electrode tube section horizontal spacing is generally 1.5 meters to 5.0 meters, to ensure to block the large-scale obstacle normal pass such as the trunk in fish and water domain, withered tree, electrode tube shape on each vertical rope Into chain structure, vertical rope of each bar with electrode tube is blocking fish section formation network structure electrode array, so as to block fish section shape Into electric fish barrier net fish purpose is blocked to reach.
The pulse power 16 refers to the alternating current of input being rectified into the non-lethal arteries and veins of fish by impulse generator Rush direct current energy, and obtained certain amplitude, width and continuous pulse direct current electric energy are gone out to blocking by power transmission cable defeated 17 The device of the electrode array of fish electricity grid.Impulse generator should can provide two sections or the power supply of three sections of partial pressures, and its input voltage range should be Alternating current 220V ± 10V, 50Hz, input current should be less than 6A;Export the pulse direct current that peak impulse voltage is 220V to 800V Combination, output pulse frequency are that time/second of rate 2 to 10 times/second, output pulse width should be between 0.25 millisecond to 0.3 millisecond, with suitable That answers different fingerlings blocks fish needs;Pulse power condition of work should be between -10 DEG C to 60 DEG C, and working environment relative humidity is less than 80%, load resistance should be greater than 0.8 Europe.
The power transmission cable 17 is used for connection electrode battle array 15 and the pulse power 16, stable to be provided for electric fish screen electrode array Electric power safeguard, for power transmission cable 17 by asking wire ferrule to be laid along main push-towing rope 1, track cable 8 and Chui Suo 9, its length should be various to meet Fish depth requirements are effectively blocked in the case of SEA LEVEL VARIATION to be advisable, and material therefor should possess good insulating, waterproof, anti-aging, resistance to compression, anti- The characteristic such as impact, wear-resisting, corrosion-resistant.
The effect observation system is specific to blocking fish warning cable section and surrounding body using technologies such as sonar, ultrasonic waves The apparatus system that fish effect is observed is blocked, for example sonar fish detector, ultrasonic fish finer etc. can be used for finding to block fish and water domain Shoal of fish trend, shoal of fish site, the sonar of scope, ultrasonic listening and analysis system, its principle generally utilize sound wave, surpassed Propagation characteristic of the sound wave in fish and water domain is blocked, by electroacoustic conversion and information processing, analysis, complete the detection of underwater fish, classification, Positioning, counting, tracking, communication and feedback of the information, the integrated system of analysis.Effect observation system it is specifically chosen, should be according to blocking The requirement of fish effect observation operating accuracy is determined.As shown in Fig. 2 it is being provided with the preceding left bank sonar in dam at the pulse power 16 Fish deteclor 19, the preceding left bank sonar fish deteclor search coverage 20 in its dam is below warning line structure.
The main push-towing rope 1 is the main supporting member for blocking fish warning cable, resists external load by axial tension, preferably uses The material that steel strand wires, steel wire rope or the steel wire bunch of high tensile steel wire composition etc. are light, intensity is high.Main push-towing rope 1 preferably directly warns in original Cable position is transformed, and can be used directly when original warning cable specification meets barricade rigidity, length requirement, when discontented Overstriking is answered when sufficient, is lengthened.The installation position of main push-towing rope 1 should block 0.5 meter to 1.0 meters scope on fish section peak level, to meet Block and effectively block fish depth requirements in the case of the various SEA LEVEL VARIATIONs of fish section reservoir and be advisable.
The auxiliary cable 2 is the important supporting member for blocking fish warning cable, resists external load by axial tension, preferably uses The material that steel strand wires, steel wire rope or the steel wire bunch of high tensile steel wire composition etc. are light, intensity is high.Auxiliary cable 2 is preferably laid under main push-towing rope 1 Trip, spacing is laid preferably at 0.5 meter to 1.2 meters, it lays elevation, specification, material should be consistent with main push-towing rope 1, to ensure to block fish warning The monolithic stability of cable load-carrying members and safely and effectively operation.
The anchorage 5 is main push-towing rope 1, the anchoring body of auxiliary cable 2, is that the pulling force in main push-towing rope 1, auxiliary cable 2 passes to foundation Component, generally use gravity anchor and tunnel formula anchorage, the form of anchorage should combine the geology bar for blocking fish warning cable both ends Part and design load grade determine that, can meet design load requirement, and can, which reduces expenditure of construction, to be advisable.
The floating object 6 is typically generally using the larger rectangle of buoyancy or cylindrical floating material, floating material length 1.0 meters to 3.0 meters, width is generally 0.5 meter to 1.2 meters, and generally 0.5 meter to 1.0 meters of height, floating object spacing typically exists Between 1.0 meters to 3.0 meters, laying of the floating object on fish warning cable is blocked typically uses subregion segmented mode to save engineering throwing Money, the specification of selected floating object, quantity, which should combine, during specific implementation blocks fish warning cable section landform, blocks fish depth and block fish The buoyancy counterweight requirements of electric grid design determine.The color of floating object should have direct visual impact effect to avoid blocking fish and water domain The artificial impact failure such as ship, the material of floating object should possess the characteristic such as waterproof, protecting against shock, anti-stretching, anti-aging, anticorrosive.
Below in conjunction with Dadu River pillow dam one-level power station embodiment the present invention program is described in further detail as Under:
(1) project profile
Pillow dam one-level power station is the 19th step of Dadu River mainstream cascade of hydroelectric revised planning, is based on generating Big (2) type power station, normal pool level 624.0m, backwater length about 16.71km, the corresponding m3 of storage capacity 0.435 hundred million, level of dead water 618.0m.Power station is developed using dam-type, and installed capacity 720MW, Mean annual energy production is 32.90 hundred million kWh.
Pillow dam one-level hydroelectric dam crest level 626.0m, maximum height of dam 86.5m;Water diverting structure design discharge 2724.0m3/s, water inlet pattern is tower using bank, provided with trash rack, breastwork, bulkhead gate, main gate, passage, tower top Service bridge and opening and closing device, water inlet leading edge overall width are 136.0m, Parallel to the flow direction length 28.0m, water inlet floor elevation 556.0m, top of tower elevation are 626.0m.Outlet structure escape works use 5 hole sluices, and sluice moulder moisture is flat breastwork formula, Elevation of weir crest is 626.5m, and sluice port size is 8m × 16m (wide × high), sluice floor elevation 585.0m, on aperture Portion sets breastwork, and Downstream of Sluice uses underflow energy dissipation, and the long 120.0m of stiling basin, end sets baffle wall style.
Pillow dam one-level power station, which is related to section, 58 kinds of fish, is under the jurisdiction of the section 46 of 4 mesh 9 and belongs to.Wherein:The provincial guarantor in Sichuan Province Protect 5 kinds of fish, respectively nude Qiu Tuo, Schizothorax davidi, green stone Pa Select-Committee, cross onychostoma simus greatly, lateral sulcus climbs rock loach;Upper Yangtze River is special There are 19 kinds of fish, respectively grow thin loach, high eyebrow Interpretive, long fin kiss Minnow, different fish glue loach Tuo, neat mouth schizothoracin, Schizothorax davidi, lateral sulcus and climb Rock loach, Sichuan, which are climbed between rock loach, short body, inhales loach, flat loach, green stone Pa Select-Committee etc. after high eyebrow.
It is actual according to pillow dam one-level hydropower station water inlet, release floodwatering facility and former warning cable arrangement, and block fish Facility and major project, fish engineering safety, coordinated operation related request are crossed, to protect above-mentioned fish to run unfavorable shadow from power station Ring, in dam upstream, the 330m narrower place in reservoir area is transformed original warning cable, and there is provided block fish warning cable.
(2) cable reconstruction structure deployment scenarios are warned
Reservoir area width where the former warning cable in pillow dam one-level power station is 160.0m, and its material is that the high intensity of Φ 36 is zinc-plated Steel wire rope, laying elevation are 624.5m, long 200.0m.Through review, original warning cable meets to block the load that fish warning cable is set And length requirement, used directly as the main push-towing rope for blocking fish warning cable, auxiliary cable lays elevation, specification, length, material and main push-towing rope one Cause, be laid in main push-towing rope downstream direction, spacing 1.0m.Main push-towing rope, auxiliary cable are laid in by C25 reinforced concrete knoll supporting constructions Block at the fish warning high Cheng of cable two sides 624.5m, length is 200.0m, and both ends pass through saddle radius 400.0mm hold-down support excessively Formula cable saddle and tunnel formula anchor ingot are fixedly connected, to meet to block fish section reservoir operation scheme 624.0m to level of dead water 618.0m constant intervals effectively block fish depth requirements.
(3) storehouse table float structure deployment scenarios
Floating object is possessed stronger visual impact effect and prevented using the larger red rectangle PE rotational moulding floating materials of buoyancy Water, protecting against shock, anti-stretching, the characteristic such as anti-aging, anticorrosive, its storehouse longitudinally long 1.0m, wide 3.0m, high 1.0m downstream.
The section reservoir area landform according to where blocking fish warning cable is actual, and effectively blocks fish depth requirements, i.e. reservoir is normal Water storage level 624.0m to water inlet floor elevation 556.0m 68.0m interval depths, the totality of consideration are blocked fish depth and more effectively blocked Fish depth bounds expand 12.0m after, floating object amount to lay 46 pieces, 200.0m length block fish warning cable on spacing according to Lower principle is laid:
(1) block fish warning cable center segment limit and lay principle:Block fish warning cable center line both sides 70m scopes it Interior, the fish overall depth of blocking that the 140m blocks fish section section is arranged in 30m to 80m, floating object laying according to spacing 1.2m, should 140m blocks fish section section and amounts to 34 pieces of floating objects of laying.
(2) block fish warning cable bank segment limit and lay principle:Block outside the 70m scopes of fish warning cable center line both sides Section within the scope of to 100m, what the 60m blocked fish section section blocks fish overall depth in below 30m, floating object lay according to Arranged away from 2.5m, the 60m blocks fish section section and amounts to 12 pieces of floating objects of laying.
Floating object is carried out using M10-160 types U-bolt to fix, its total high 160mm, internal diameter 32mm, centre-to-centre spacing 46mm, tooth Long 28mm, material are 304 stainless steels, and each floating object sets 4 U-bolts, arrange 184 altogether.
(4) electric fish screen deployment scenarios
Track cable is the high-strength galvanized steel wire ropes of Φ 36, is arranged in blocking on fish warning cable between each section floating object Heart position, long 1.0m, 45 sections is arranged altogether, is connected by high-strength stainless steel wirerope clamp with main push-towing rope, auxiliary cable.
The rope that hangs down is the high-strength galvanized steel wire ropes of Φ 26, is blocking fish warning cable center section, the laying spacing of bank section difference For 4.2m, 5.5m, the rope that hangs down is connected by high-strength stainless steel wirerope clamp and insulation rubber cushion with track cable, bottom and 50kg steel balls Mass connects, and the vertical Suo Changdu ratios for blocking each section on fish section block fish section maximum and block the long 1.0m of fish depth, to meet to block fish Section reservoir operation scheme 624.0m effectively blocks fish depth requirements to level of dead water 618.0m constant intervals.
Horizontal rope is the high-strength galvanized steel wire ropes of Φ 20, is connected by common stainless steel wirerope clamp with Chui Suo, horizontal Suo Bushe Spacing is 4.0m blocking each section of fish section, and to meet to block, electric fish screen monolithic stability will under the flow field change of fish section waters Ask.
Electrode tube is zinc-plated electrode tube, is fixed on by common stainless steel wirerope clamp on vertical rope.Electrode pipe range 1.0m, diameter 8cm, each electrode tube are 1.5m hanging down the laying spacing on rope blocking each section of fish section, each electrode tube section Horizontal spacing is consistent with vertical rope spacing, to ensure to block the large-scale obstacle normal pass such as the trunk in fish and water domain, withered tree.
Impulse generator input voltage range is alternating current 220V ± 10V, 50Hz, it is possible to provide two sections or three sections of partial pressure power supplies, Input current is 5A, and the pulse direct current that the peak impulse voltage of output is 600V combines, and output pulse frequency is time/second of rate 5, defeated Go out pulse width for 0.3 millisecond.Between -10 DEG C to 60 DEG C, working environment relative humidity is less than pulse power condition of work 80%, load resistance is 1.0 Europe.For power transmission cable by asking wire ferrule to be laid along main push-towing rope, track cable and Chui Suo, top layer uses insulating properties Good, waterproof, anti-aging, resistance to compression, shock resistance, wear-resisting, corrosion resistant molding material, with connection electrode pipe and the pulse power, to block Fish electricity gate electrode battle array provides stable power guarantee.
(5) effect observation system situation
Fish warning cable is blocked before pillow dam one-level Hydropower Plant Reservoir dam fish is blocked for observation using Tekimbe sonars fish detector Shoal of fish trend, shoal of fish site, the scope in waters, complete the detection of underwater fish, classification, positioning, count, tracking, communication and Feedback of the information, analysis.The investigation depth that the detection of Tekimbe sonars fish detector is each popped one's head in is 0.6~100.0m, and accuracy is 0.1m, sonar frequency are 200khz, and its 2 probes are separately mounted to block left bank, the right bank of fish warning cable main push-towing rope, and each probe is visited The fish movement data obtained in the range of survey are analyzed by rear computer, handled.

Claims (9)

1. fish warning line structure is blocked before a kind of reservoir dam, it is characterised in that:Including warning line structure, storehouse table float structure, Electric fish screen structure and effect observation system, the warning line structure include main push-towing rope (1), auxiliary cable (2), supporting construction (3), rope Saddle (4) and anchorage (5), the cable saddle (4) are arranged at the top of supporting construction (3), and the main push-towing rope (1), auxiliary cable (2) pass through cable saddle (4) it is connected with anchorage (5);The storehouse table float structure includes floating object (6) and fixing bolt (7), and the fixing bolt (7) will Floating object (6) is separately fixed on main push-towing rope (1) and auxiliary cable (2);The electric fish screen structure is on fish warning cable section is blocked The electrode array of setting, the electrode array form and block fish electric field;The effect observation system is to be arranged on main push-towing rope (1) and auxiliary cable (2) Sonar unit, for being observed to blocking fish warning cable section and the fish effect of blocking of surrounding body;The electric fish screen knot Structure is by track cable (8), hang down rope (9), horizontal rope (12), mass (13), electrode array (15), the pulse power (16) and power transmission cable (17) form, wherein track cable (8) be arranged on floating object (6) between central point on, and by wirerope clamp A (10) respectively and Main push-towing rope (1) and auxiliary cable (2) connection;Vertical rope (9) top is connected by wirerope clamp A (10) and insulation rubber cushion (11) with track cable (8) Connect, bottom is connected with mass (13);Horizontal rope (12) is connected by wirerope clamp B (14) and vertical rope (9), mass (13) installation In vertical rope (9) bottom, electrode array (15) is connected with the pulse power (16) by power transmission cable (17).
2. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The power transmission cable (17) by asking wire ferrule (18) to be fixed on main push-towing rope (1) and vertical rope (9).
3. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The electrode array (15) it is arranged on and is blocked on fish warning cable section using multiple electrodes pipe, its multiple electrodes pipe is blocking hanging down for fish warning cable section Laid in a manner of assembled arrangement to transverse direction, and be fixed on by wirerope clamp B (14) on vertical rope (9), each electrode tube breaks The vertical spacing in face is 0.5 meter to 2.0 meters, and each electrode tube section horizontal spacing is 1.5 meters to 5.0 meters.
4. fish warning line structure is blocked before a kind of reservoir dam according to claim 3, it is characterised in that:The electrode tube is Zinc-plated electrode tube or brass electrode pipe, single electrode length of tube are 0.5 meter to 1.5 meters, a diameter of 3 centimetres to 15 lis of electrode tube Rice.
5. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The pulse power (16) impulse generator is used, and it is exchange that impulse generator, which can provide two sections or three sections of partial pressure power supplies, its input voltage range, 220V ± 10V, frequency 50Hz, input current are less than 6A;The pulse direct current that peak impulse voltage is 220V to 800V is exported, Output pulse frequency is 2 times/second to 10 times/second, and output pulse width is between 0.25 millisecond to 0.3 millisecond.
6. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The fixing bolt (7) U-bolt or double bolts are used.
7. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:Wirerope clamp A (10) high-strength stainless steel wirerope clamp is used, wirerope clamp B (14) uses common stainless steel wirerope clamp.
8. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The mass (13) steel ball or shot are used, the mass (13) is arranged on vertical rope bottom and gives counterweight.
9. fish warning line structure is blocked before a kind of reservoir dam according to claim 1, it is characterised in that:The main push-towing rope (1) Steel strand wires, steel wire rope or steel wire bunch are used with auxiliary cable (2).
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