CN204142608U - The device of a kind of variable roughness Rectangular Water Trough simulation bed mud erosion and transmission feature - Google Patents
The device of a kind of variable roughness Rectangular Water Trough simulation bed mud erosion and transmission feature Download PDFInfo
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- CN204142608U CN204142608U CN201420573185.0U CN201420573185U CN204142608U CN 204142608 U CN204142608 U CN 204142608U CN 201420573185 U CN201420573185 U CN 201420573185U CN 204142608 U CN204142608 U CN 204142608U
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Abstract
The utility model discloses the device of a kind of variable roughness Rectangular Water Trough simulation bed mud erosion and transmission feature, comprises inlet water tank, prolate shape tank, column mud sample pipe, water tank, water pump, reserve tank, bed load sediment acquisition equipment and suspended sediment collecting box.The utility model utilizes roughness to replace plate and regulates and change bottom of gullet roughness, achieves bed mud under different roughness and corrodes and the simulation of transmission feature; Traction load after utilizing sloping plate deposition case and filter net device to catch to corrode in bed mud and suspended load, realize bed mud corrode after the simulation of transmission feature; The column bed mud utilizing vertical structure not to be disturbed carries out erosion experiment, maintains the original state structure of bed mud, characterizes the actual erosion performance of bed mud; Utilize constant water potential difference to produce constant acting force to bed mud surface, column bed mud is corroded under different hydrodynamic effect, the bed mud realized under the disturbance of different hydrodynamic intensity corrodes, and overcomes the uncontrollable problem of external force condition.
Description
Technical field
The utility model relates to shallow lake and river system water ecological setting analogue technique field, river and the lake bed mud under the disturbance of different hydrodynamic intensity particularly utilizing the Rectangular Water Trough of variable roughness to simulate under different roughness corrodes and settling flux feature, traction load and suspended load ratio, and the device of bed mud transmission feature.
Background technology
Under hydrodynamism lake or river drift easily corrode, settling flux, this process can cause the release of surface deposit nutritive salt, the change etc. of biomass.The definition of bed mud surface erosion rate is the bed mud erosion amount of unit area bottom within the unit interval.Riverbed shearing stress is the important parameter in Cohesive Sediment research, and it directly determines the degree of depth that bed mud is etched.But it is very difficult for determining riverbed shearing stress, controlling external force condition.At present, the lab simulation of simulating bed mud corrodes mainly contains concussion method, wave flume method and annular water tank method.Concussion method is in triangular flask, load a certain amount of S & W sample, to shake frequency analog hydrodynamic force size.The method is simply easy to controlled condition and can organizes parallel more, but volume is too small, well can not describe bed mud and corrode the trend increased progressively with stormy waves enhancing.Wave flume and annular water tank method are that the directed flow adopting mechanical means to produce overlying water makes bed mud suspend.Method is easy to controlled condition, but the original state of experiment bed mud is subject to certain destruction, and more shallow overlying water and lake actual conditions differ greatly.Keep sedimental original state extremely important, it is not only related to the result of the variable effect settling flux of interface and the structure thereof being exposed to overlying water, and also produces vital impact to the burst size of nutriment.In bed mud erosion experiment, choosing and designing of device is most important, produces material impact to result.The design of historical facts or anecdotes experiment device should can reflect actual conditions as far as possible.
Silt has four kinds of states at bed surface (bed-surface layer or bottom), namely static, roll, jump and suspend.Wherein staticly be called bed material, rolling is called traction load with jump, suspends and is called suspended load.Usually the bed mud be etched in river or upstream, lake can have influence on the Features of Water Environment of downstream water.Therefore research corrode after the ratio of the traction load of bed mud and suspended load, migration characteristics be understand the major issue of sediment at water body or bed surface transportation law.After bed mud is etched, can transmit at water body or bed surface with the form of traction load and suspended load.Study limitation was in only considering suspended load part or total erosion ratio in the past.Fail both separately to consider, thus to bed mud rise outstanding after traction load and suspended load composition be short in understanding.
The experiment of corroding due to bed mud is not easy to investigate in the wild, and this kind of experiment carries out modeling effort in indoor laboratory usually.The bottom configuration in all kinds of river and lake mostly height rises and falls indefinite, have different roughness, and current domestic and international various laboratory experiment tank is roughly single level and smooth bottom surface, have ignored the authenticity of this part bottom roughness degree simulation.There is material impact to flow rate of water flow motion in different roughness, the result thus corroding bed mud and transmit also plays a part very important, and the design of historical facts or anecdotes experiment device should reflect actual conditions as far as possible.And the filter mesh layer of different meshes is set at bed load sediment acquisition equipment and suspended sediment collecting box, the traction load of separated and collected different physical properties and suspended load, be convenient to post analysis bed mud proterties.
Utility model content
Goal of the invention: uncontrollable in order to overcome external force in prior art, bottom roughness irreconcilable maintenance bed mud original state structure is difficult, lack to bed mud rise outstanding after the problem such as understanding of traction load and suspended load composition, the utility model provides a kind of variable roughness Rectangular Water Trough simulation bed mud to corrode and the device of transmission feature.
Technical scheme: for solving the problems of the technologies described above, the device of variable roughness Rectangular Water Trough simulation bed mud erosion of the present utility model and transmission feature, comprise inlet water tank, prolate shape tank, column mud sample pipe, water tank, water pump, reserve tank, bed load sediment acquisition equipment and suspended sediment collecting box, the inlet water tank plate that described inlet water tank madial wall is provided with symmetrical inlet water tank slot and is slidably connected by inlet water tank slot and inlet water tank, the height of inlet water tank plate is lower than the height of inlet water tank side plate, inlet water tank side plate and inlet water tank plate form the first spill box, the first spill box water delivering orifice is provided with bottom first spill box, inlet water tank bottom is provided with inlet water tank bottom water delivering orifice, inlet water tank bottom water delivering orifice is connected with the water inlet of prolate shape tank, water tank bottom is provided with water tank bottom water inlet, the water delivering orifice of prolate shape tank is connected with water tank bottom water inlet, prolate shape bottom of gullet is roughness displacement plate, prolate shape tank two side bottom is equipped with chute, roughness displacement plate is slidably connected by chute and prolate shape tank both sides, roughness displacement plate is provided with into mud hole and mudhole, described enter one end of mud hole and column mud sample pipe be tightly connected, described mudhole and bed load sediment acquisition equipment are tightly connected, the water tank plate that described water tank madial wall is provided with symmetrical water tank slot and is slidably connected by water tank slot and water tank, the height of water tank plate is lower than the height of water tank side plate, water tank side plate and water tank plate form the second spill box, are provided with the second spill box water delivering orifice bottom the second spill box, described reserve tank reserve tank water delivering orifice, reserve tank water delivering orifice is connected with the water inlet pipe of water pump by water pipe, and the rising pipe of described water pump is connected with the inlet water tank water inlet of inlet water tank by water pipe, the reserve tank plate that described reserve tank madial wall is provided with symmetrical reserve tank slot and is slidably connected by reserve tank slot and reserve tank, the height of reserve tank plate is lower than the height of reserve tank side plate, and reserve tank side plate and reserve tank plate form suspended sediment collecting box, first spill box water delivering orifice of described first spill box is connected with the reserve tank water inlet of described reserve tank, and the second spill box water delivering orifice of described second spill box is connected with suspended sediment collecting box water inlet.
Principle of work: the water level being controlled prolate shape tank water inlet and water delivering orifice by the inlet water tank plate and water tank plate configuring differing heights in inlet water tank and water tank, utilize water pump to realize water circulation flowing simultaneously, collect traction load with bed load sediment acquisition equipment, collect suspended load with suspended sediment gathering-device; Current by water pump lifting, enter inlet water tank from reserve tank, and a part directly gets back to reserve tank through the first spill box; A part is by prolate shape tank and enter water tank and overflow to the second spill box, then enters suspended sediment collecting box by the second spill box water delivering orifice, then overflows to reserve tank from suspended sediment collecting box, and so circulate running; By being inserted into water tank plate and water tank plate, first spill box is set in inlet water tank, second spill box is set in water tank, utilize difference in height and the overflow effect of inlet water tank plate and the water tank plate inserted, control the constant water level of inlet water tank and water tank, achieve and keep a constant head difference in whole test process, and flow velocity in prolate shape tank can be changed by regulating the water level difference of inlet water tank and water tank.
Described roughness displacement plate is steel plate, cement plate, concrete slab, slabstone, pottery clay plates, hydrophyte plate or glass plate, with reference to the result of calculation of surveying riverbed and lakebed roughness, can select appropriate roughness displacement plate.
Described glass plate is smooth plates or concave-board, and concave-board can place various roughness analogies.
The upper end being positioned at suspended sediment collecting box water inlet in described suspended sediment collecting box is provided with reserve tank filter screen, and reserve tank filter screen is the detachable multistorey strainer mesh of different meshes type, can filter the water in suspended sediment collecting box inflow reserve tank.
The upper surface of described prolate shape tank has flow velocity gaging hole, and the roughness corresponding with flow velocity gaging hole position is replaced plate and be provided with propeller type current meter, can be convenient for measuring the water volume flow rate in prolate shape tank.
Mud post is provided with in described column mud sample pipe, the bottom of described mud post is provided with piston, lifting jack is provided with below column mud sample pipe, described piston is connected with lifting jack, can Non-follow control translational speed mud post is headed into from bottom to top prolate shape tank enter mud hole, mud post surface and prolate shape bottom of gullet maintenance level can be remained or exceed a little a bit, making mud post surface be subject to the horizontal flow shear action of current.
Bed mud erosion rate of the present utility model is the lifting height of mud post divided by duration of experiment.
Described bed load sediment acquisition equipment comprises sloping plate deposition case, sediment box filter screen and base plate, base plate is uncovered body structure, be located at bottom sloping plate deposition case, and base plate is threaded with sloping plate deposition case, detachable sediment box filter screen is located at base plate top, connect along plate inner wall, detachable sediment box filter screen is different meshes type sandwich construction, can conveniently clean sloping plate deposition box plate.
Described sloping plate deposition chamber interior wall is arranged with the swash plate of more than 2, and described swash plate one end is connected with sloping plate deposition chamber interior wall, and the other end is located in the casing of sloping plate deposition case, and is not connected with sloping plate deposition chamber interior wall; One end that swash plate is not connected with sloping plate deposition chamber interior wall, lower than the link of swash plate and sloping plate deposition case, can guarantee that bed load sediment no longer enters in water body after being caught by sloping plate deposition case.The multistorey strainer mesh of different meshes can be separated the sediment particles of Different Diameter grain size, is convenient to analyze bed mud physical behavior.
The variable roughness Rectangular Water Trough of beneficial effect-the utility model simulates the device of bed mud erosion and transmission feature compared with prior art:
(1) with reference to actual riverbed and lakebed roughness, the replacing utilizing roughness to replace plate regulates tank base plate roughness, achieves bed mud in different roughness situation and corrodes and the simulation of transmission feature;
(2) adopt different device effectively to collect bed mud respectively and work the traction load after hanging and suspended load, distinguish bed mud after corroding in the suspended load of water body or bed surface motion and the composition of traction load and ratio, the detachable multistorey strainer mesh of different meshes type is set, the sediment particles of separable collection Different Diameter grain size, be convenient to analyze bed mud physical behavior, disclose bed mud migration characteristics, achieve convenient collection of catching sample simultaneously and measure and cleaning;
(3) utilize constant water potential difference to produce constant acting force to bed mud surface, realize simulation bed mud erosion effect, overcome the uncontrollable problem of external force condition;
(4) the column bed mud utilizing vertical structure not to be disturbed carries out erosion experiment, maintains bed mud primary characteristic, characterizes the actual erosion performance of bed mud;
(5) accessible propeller type current meter, measure water trench bottom flow velocity, realizes simulation varying strength current to the shear action of bed mud.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is prolate shape tank schematic diagram described in the utility model;
Fig. 3 is inlet water tank schematic diagram described in the utility model;
Fig. 4 is water tank schematic diagram described in the utility model;
Fig. 5 is sloping plate deposition case schematic diagram described in the utility model;
Fig. 6 is reserve tank schematic diagram described in the utility model;
In figure: 1, inlet water tank; 2, prolate shape tank; 3, water tank; 4, reserve tank; 5, column mud sample pipe; 6, sloping plate deposition case; 7, reserve tank filter screen; 8, water pump; 9, inlet water tank slot; 10, water tank slot; 11, inlet water tank plate; 12, water tank plate; 13, the first spill box; 14, the second spill box; 15, inlet water tank bottom water delivering orifice; 16, water tank bottom water inlet; 17, inlet water tank water inlet; 18, reserve tank slot; 19, reserve tank plate; 20, suspended sediment collecting box; 21, suspended sediment collecting box water inlet; 22, flow velocity gaging hole; 23, propeller type current meter; 24, mud hole is entered; 25, mudhole; 26, mud post; 27, piston; 28, lifting jack; 29, base plate; 30, the first spill box water delivering orifice; 31, the second spill box water delivering orifice; 32, reserve tank water inlet; 33, reserve tank water delivering orifice; 34, chute; 35, roughness displacement plate; 36, swash plate; 37, sediment box filter screen.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figures 1 to 6, the device of a kind of variable roughness Rectangular Water Trough simulation bed mud erosion and transmission feature, comprise inlet water tank, prolate shape tank 2, column mud sample pipe 5, water tank 3, water pump 8, reserve tank 4, bed load sediment acquisition equipment and suspended sediment collecting box 20, the inlet water tank plate 11 that inlet water tank madial wall is provided with symmetrical inlet water tank slot 9 and is slidably connected by inlet water tank slot 9 and inlet water tank, the height of inlet water tank plate 11 is lower than the height of inlet water tank side plate, inlet water tank side plate and inlet water tank plate 11 form the first spill box 13, the first spill box water delivering orifice 30 is provided with bottom first spill box 13, inlet water tank bottom is provided with inlet water tank bottom water delivering orifice 15, inlet water tank bottom water delivering orifice 15 is connected with the water inlet of prolate shape tank 2, water tank bottom is provided with water tank bottom water inlet 16, the water delivering orifice of prolate shape tank 2 is connected with water tank bottom water inlet 16, it is roughness displacement plate 35 bottom prolate shape tank 2, prolate shape tank 2 liang of side bottoms are equipped with chute 34, roughness displacement plate 35 is slidably connected by chute 34 and prolate shape tank 2 both sides, roughness displacement plate 35 is provided with into mud hole 24 and mudhole 25, enter mud hole 24 to be tightly connected with one end of column mud sample pipe 5, mudhole 25 and bed load sediment acquisition equipment are tightly connected, the water tank plate 12 that water tank 3 madial wall is provided with symmetrical water tank slot 10 and is slidably connected by water tank slot 10 and water tank 3, the height of water tank plate 12 is lower than the height of water tank 3 side plate, water tank 3 side plate and water tank plate 12 are formed bottom the second spill box 14, second spill box 14 and are provided with the second spill box water delivering orifice 31, reserve tank 4 is provided with reserve tank water delivering orifice 33, and reserve tank water delivering orifice 33 is connected by the water inlet pipe of water pipe with water pump 8, and the rising pipe of water pump 8 is connected with the inlet water tank water inlet 17 of inlet water tank by water pipe, the reserve tank plate 19 that reserve tank 4 madial wall is provided with symmetrical reserve tank slot 18 and is slidably connected by reserve tank slot 18 and reserve tank 4, the height of reserve tank plate 19 is lower than the height of reserve tank 4 side plate, and reserve tank 4 side plate and reserve tank plate 19 form suspended sediment collecting box 20, first spill box water delivering orifice 30 of the first spill box 13 is connected with the reserve tank water inlet 32 of reserve tank, and the second spill box water delivering orifice 31 of the second spill box 14 is connected with the suspended sediment collecting box water inlet 21 of suspended sediment collecting box 20.Roughness displacement plate 35 is steel plate, cement plate, concrete slab, slabstone, pottery clay plates, hydrophyte plate or glass plate, and glass plate is concave-board, can place various roughness analogies.The upper surface of prolate shape tank 2 has flow velocity gaging hole 22, and the roughness corresponding with flow velocity gaging hole 22 position is replaced plate 35 and be provided with propeller type current meter 23.Be provided with mud post 26 in column mud sample pipe 5, the bottom of mud post 26 is provided with piston 27, and be provided with lifting jack 28 below column mud sample pipe 5, piston 27 is connected with lifting jack 28.The upper end being positioned at suspended sediment collecting box water inlet 21 in suspended sediment collecting box 20 is provided with reserve tank filter screen 7, and reserve tank filter screen 7 is the detachable multistorey strainer mesh of different meshes type.Bed load sediment acquisition equipment comprises sloping plate deposition case 6, sediment box filter screen 37 and base plate 29, base plate 29 is uncovered body structure, be located at bottom sloping plate deposition case 6, and base plate 29 is threaded with sloping plate deposition case 6, detachable sediment box filter screen 37 is located at base plate 29 top, connect along base plate 29 inwall, detachable sediment box filter screen 37 is different meshes type sandwich construction.Sloping plate deposition case 6 inwall is arranged with 4 swash plates 36, and swash plate 36 one end is connected with sloping plate deposition case 6 inwall, and the other end is located in the casing of sloping plate deposition case 6, and is not connected with swash plate 36 sediment box 6 inwall; One end that swash plate 36 is not connected with sloping plate deposition case 6 inwall is lower than the link of swash plate 36 with sloping plate deposition case 6.
Inlet water tank, prolate shape tank 2, water tank, reserve tank, column mud sample pipe 5 and swash plate 36 sediment box 6 all adopt organic glass material.
Its course of work is: current are promoted from reserve tank by water pump 8, enter inlet water tank, and a part directly gets back to reserve tank through the first spill box 13; A part is through prolate shape tank 2 and water tank, and by overflowing to the second spill box 14, by the second spill box water delivering orifice 31 to suspended sediment collecting box 20, then overflow to reserve tank, so circulate running.
By being inserted into water tank plate 11 and water tank plate 12, first spill box 13 is set in inlet water tank, second spill box 14 is set in water tank, utilize difference in height and the overflow effect of inlet water tank the plate 11 and water tank plate 12 inserted, control the constant water level of inlet water tank and water tank, achieve and keep a constant head difference in whole test process, and by regulating the water level difference of inlet water tank and water tank to change flow velocity in prolate shape tank 2.
Can replace bottom prolate shape tank 2, prolate shape tank 2 liang of side bottoms are provided with slide-bar, when regulating prolate shape tank 2 base plate 29 roughness, design the plate face of different degree of roughness, choose different materials (glass, steel, cement, concrete, stone, potter's clay, hydrophyte etc.) roughness displacement plate 35, according to the flow velocity of actual river and shallow lake, cross-sectional area, the measured datas such as the depth of water substitute into Manning formula and actual measurement roughness is obtained in Chezy formula calculating, result of calculation with reference to actual measurement riverbed and lakebed roughness chooses appropriate roughness displacement plate 35, satisfactory roughness displacement plate 35 is inserted the slide-bar of prolate shape tank 2 both sides.
Suffer erosion and bed mud mainly silt traction load and the suspended load moved.The bed load sediment of moving bottom prolate shape tank 2 is collected by sloping plate deposition case 6.The built-in swash plate 36 of sloping plate deposition case 6, guarantees that bed load sediment no longer enters in water body after being caught by sloping plate deposition case 6.The base plate 29 of sloping plate deposition case 6 is threaded connection bottom it, and the base plate 29 of sloping plate deposition case 6 is detachable, and easy cleaning measures settled bed mud.Sloping plate deposition case 6 and suspended sediment collecting box 20 arrange the detachable multistorey strainer mesh of different meshes type, the sediment particles of separable collection Different Diameter grain size, are convenient to analyze bed mud physical behavior, and current enter reserve tank by reserve tank plate 19.
This device concrete operation method is as follows: the roughness numerical value needing river or the shallow lake calculating gained of simulating as required, choose appropriate roughness displacement plate 35, roughness displacement plate 35 inserts the slide-bar bottom prolate shape tank 2, the height of the flow velocity design turnover water level of simulating as required, inlet water tank plate 11 and the water tank plate 12 of corresponding height is inserted in the slot of inlet water tank and water tank, water in reserve tank is promoted in inlet water tank by water pipe by water pump 8, current flow through prolate shape tank 2, corresponding flow velocity is recorded by propeller type current meter 23, current flow, promote by the mud post 26 of lifting jack 28 jack-up, surface mud sample is subject to the horizontal flow shear action of current, corrode, when bed load sediment arrives certain position, landing is collected to sloping plate deposition case 6, suspended sediment is along with current, through water tank, through water pipe, enter suspended sediment collecting box 20 to be collected, keep the water overflow all the time in inlet water tank and water tank, to maintain the current of flow speed stability in prolate shape tank 2, get back in reserve tank by the second spill box water delivering orifice 31 bottom the first spill box 13 and the second spill box 14, realize water circulation flowing.After a period of time is carried out in experiment, calculate bed mud erosion ratio as requested, analyze the physicochemical property of suspended load and bed load sediment, and proportion of composing.
Below be only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. the device of a variable roughness Rectangular Water Trough simulation bed mud erosion and transmission feature, it is characterized in that, comprise inlet water tank (1), prolate shape tank (2), column mud sample pipe (5), water tank (3), water pump (8), reserve tank (4), bed load sediment acquisition equipment and suspended sediment collecting box (20), the inlet water tank plate (11) that described inlet water tank (1) madial wall is provided with symmetrical inlet water tank slot (9) and is slidably connected by inlet water tank slot (9) and inlet water tank (1), the height of inlet water tank plate (11) is lower than the height of inlet water tank (1) side plate, inlet water tank (1) side plate and inlet water tank plate (11) form the first spill box (13), first spill box (13) bottom is provided with the first spill box water delivering orifice (30), inlet water tank bottom is provided with inlet water tank bottom water delivering orifice (15), inlet water tank bottom water delivering orifice (15) is connected with the water inlet of prolate shape tank (2), water tank bottom is provided with water tank bottom water inlet (16), the water delivering orifice of prolate shape tank (2) is connected with water tank bottom water inlet (16), prolate shape bottom of gullet is roughness displacement plate (35), prolate shape tank (2) two side bottom is equipped with chute (34), roughness displacement plate (35) is slidably connected by chute (34) and prolate shape tank (2) both sides, roughness displacement plate (35) is provided with into mud hole (24) and mudhole (25), described enter one end of mud hole (24) and column mud sample pipe (5) be tightly connected, described mudhole (25) and bed load sediment acquisition equipment are tightly connected, the water tank plate (12) that described water tank (3) madial wall is provided with symmetrical water tank slot (10) and is slidably connected by water tank slot (10) and water tank (3), the height of water tank plate (12) is lower than the height of water tank (3) side plate, water tank (3) side plate and water tank plate (12) form the second spill box (14), and the second spill box (14) bottom is provided with the second spill box water delivering orifice (31), described reserve tank (4) is provided with reserve tank water delivering orifice (33), and reserve tank water delivering orifice (33) is connected by the water inlet pipe of water pipe with water pump (8), and the rising pipe of described water pump (8) is connected with the inlet water tank water inlet (17) of inlet water tank (1) by water pipe, the reserve tank plate (19) that described reserve tank (4) madial wall is provided with symmetrical reserve tank slot (18) and is slidably connected by reserve tank slot (18) and reserve tank (4), the height of reserve tank plate (19) is lower than the height of reserve tank side plate, and reserve tank (4) side plate and reserve tank plate (19) form suspended sediment collecting box (20), first spill box water delivering orifice (30) of described first spill box (13) is connected with the reserve tank water inlet (32) of described reserve tank, and the second spill box water delivering orifice (31) of described second spill box (14) is connected with suspended sediment collecting box water inlet (21).
2. variable roughness Rectangular Water Trough simulation bed mud as claimed in claim 1 corrodes and the device of transmission feature, it is characterized in that: described roughness replaces that plate (35) is steel plate, cement plate, concrete slab, slabstone, pottery clay plates, hydrophyte plate or glass plate.
3. the device of variable roughness Rectangular Water Trough simulation bed mud erosion as claimed in claim 2 and transmission feature, is characterized in that: described glass plate is smooth plates or concave-board.
4. the device of variable roughness Rectangular Water Trough simulation bed mud erosion as claimed in claim 1 and transmission feature, it is characterized in that: the upper end being positioned at suspended sediment collecting box water inlet (21) in described suspended sediment collecting box (20) is provided with reserve tank filter screen (7), the detachable multistorey strainer mesh that reserve tank filter screen (7) is different meshes type.
5. the device of variable roughness Rectangular Water Trough simulation bed mud erosion as claimed in claim 1 and transmission feature, it is characterized in that: the upper surface of described prolate shape tank (2) has flow velocity gaging hole (22), and the roughness corresponding with flow velocity gaging hole (22) position is replaced plate (35) and be provided with propeller type current meter (23).
6. the device of variable roughness Rectangular Water Trough simulation bed mud erosion as claimed in claim 1 and transmission feature, it is characterized in that: in described column mud sample pipe (5), be provided with mud post (26), the bottom of described mud post (26) is provided with piston (27), column mud sample pipe (5) below is provided with lifting jack (28), and described piston (27) is connected with lifting jack (28).
7. the variable roughness Rectangular Water Trough simulation bed mud erosion as described in claim 1-6 any one and the device of transmission feature, it is characterized in that: described bed load sediment acquisition equipment comprises swash plate (36) sediment box (6), sediment box filter screen (37) and base plate (29), base plate (29) is uncovered body structure, be located at swash plate (36) sediment box (6) bottom, and base plate (29) is threaded with swash plate (36) sediment box (6), detachable sediment box filter screen (37) is located at base plate (29) top, connect along base plate (29) inwall, detachable sediment box filter screen (37) is different meshes type sandwich construction.
8. the device of variable roughness Rectangular Water Trough simulation bed mud erosion as claimed in claim 7 and transmission feature, it is characterized in that: described swash plate (36) sediment box (6) inwall is arranged with the swash plate (36) of more than 2, swash plate (36) one end is connected with swash plate (36) sediment box (6) inwall, the other end is located in the casing of swash plate (36) sediment box (6), and is not connected with swash plate (36) sediment box (6) inwall; One end that swash plate (36) is not connected with swash plate (36) sediment box (6) inwall is lower than the link of swash plate (36) with swash plate (36) sediment box (6).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828414A (en) * | 2015-04-09 | 2015-08-12 | 英贝儿(天津)测控设备有限责任公司 | Water tank bottom sediment storage device |
| CN106886614A (en) * | 2015-09-07 | 2017-06-23 | 中国水利水电科学研究院 | A kind of assay method of the river course manning roughness based on steady nonuniform flow |
| CN107988992A (en) * | 2017-11-14 | 2018-05-04 | 浙江海洋大学 | Silt-determination measure device is used in one kind experiment |
| CN109686199A (en) * | 2019-02-26 | 2019-04-26 | 中国矿业大学(北京) | A kind of Simple water sink experimental provision |
| CN110208115A (en) * | 2018-10-25 | 2019-09-06 | 浙江大学 | A kind of seepage flow module for considering the soil body and seeping the embeddable interface ring shear apparatus of erosion |
| CN114046961A (en) * | 2021-09-18 | 2022-02-15 | 浙江大学 | Sediment erosion testing system based on digital imaging technology |
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2014
- 2014-09-30 CN CN201420573185.0U patent/CN204142608U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828414A (en) * | 2015-04-09 | 2015-08-12 | 英贝儿(天津)测控设备有限责任公司 | Water tank bottom sediment storage device |
| CN106886614A (en) * | 2015-09-07 | 2017-06-23 | 中国水利水电科学研究院 | A kind of assay method of the river course manning roughness based on steady nonuniform flow |
| CN106886614B (en) * | 2015-09-07 | 2019-01-29 | 中国水利水电科学研究院 | A kind of measuring method of the river manning roughness based on steady nonuniform flow |
| CN107988992A (en) * | 2017-11-14 | 2018-05-04 | 浙江海洋大学 | Silt-determination measure device is used in one kind experiment |
| CN107988992B (en) * | 2017-11-14 | 2020-01-14 | 浙江海洋大学 | Sediment test device for experiments |
| CN110208115A (en) * | 2018-10-25 | 2019-09-06 | 浙江大学 | A kind of seepage flow module for considering the soil body and seeping the embeddable interface ring shear apparatus of erosion |
| CN109686199A (en) * | 2019-02-26 | 2019-04-26 | 中国矿业大学(北京) | A kind of Simple water sink experimental provision |
| CN114046961A (en) * | 2021-09-18 | 2022-02-15 | 浙江大学 | Sediment erosion testing system based on digital imaging technology |
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Inventor after: Wei Jin Inventor after: Gu Henan Inventor after: Huang Dongjing Inventor after: Yu Zhongbo Inventor after: Li Yiping Inventor after: Tian Chuanchong Inventor after: Ju Qin Inventor after: Du Wei Inventor after: Jiang Junyao Inventor after: Zhao Lili Inventor before: Huang Dongjing Inventor before: Yu Zhongbo Inventor before: Li Yiping Inventor before: Tian Chuanchong Inventor before: Ju Qin Inventor before: Du Wei Inventor before: Jiang Junyao Inventor before: Zhao Lili Inventor before: Gu Henan |
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Granted publication date: 20150204 Termination date: 20180930 |