CN202595695U - Device for making clay block used in simulation test of high sand concentration flood 'bottom tearing scour' - Google Patents
Device for making clay block used in simulation test of high sand concentration flood 'bottom tearing scour' Download PDFInfo
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- CN202595695U CN202595695U CN 201220014995 CN201220014995U CN202595695U CN 202595695 U CN202595695 U CN 202595695U CN 201220014995 CN201220014995 CN 201220014995 CN 201220014995 U CN201220014995 U CN 201220014995U CN 202595695 U CN202595695 U CN 202595695U
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Abstract
The utility model relate to a device for making clay blocks used in a simulation test of high sand concentration flood 'bottom tearing scour'. The international patent classification (IPC) of the utility model is E02B 1/02. The device comprises a die box and a plurality of single-point diaphragm pressure sensors, wherein steel supports are fixed on a front and a rear end of the die box, a slide rod is disposed above the steel supports, the single-point diaphragm pressure sensors are disposed in the die box at intervals, and the left, right, upper and lower parts of the single-point diaphragm pressure sensors are fixed on the slid rod and the die box through high-strength carbon fibers. The clay blocks made by using the device of the utility model can accurately monitor situations of internal force changes of the clay blocks in real time, lay foundations for recognizing an occurrence mechanism of the 'bottom tearing scour' phenomenon and establishing scour indexes for the 'bottom tearing scour' phenomenon, and provide important bases and references for making flood control plans for the Yellow River and for the planning and designing of flood protection projects.
Description
Technical field:
The utility model relates to a kind of producing device of hydraulic model test equipment; Its IPC international Patent classificating number is E02B 1/02; Be particularly related in a kind of high sand-containing flood simulation test procedure of " taking off the river bed ", can realize monitoring in real time the producing device of the clay piece of the internal force change procedure of clay piece during uncovering, overturning.
Background technology:
In the high river of sand content, sections such as the Xiao Bei master stream and the Weihe River in the Yellow River for example are under the high sand-containing flood effect; The riverbed tends to take place violent lumped scour, deposits, precipitates through the regular period in early stage, and density is big, higher " the clay layer " of intensity; Taken off from the bed surface sometimes lift and, rolled-up as volume " carpet ", the one-tenth piece, surface in flakes; Area can reach several square metres even tens square metres, and is broken at short notice then, collapse, and broken up by current and takes away; This phenomenon also is called as " taking off the river bed ", is the Yellow River " one of endemism of hyper-concentration flow motion ".Phenomenon often causes the strong incision in riverbed " to take off the river bed ", even the riverbed is once towards dark several meters and even nearly ten meters." take off the river bed " and wash away and often cause migrating of river course major trough, make engineering the slide position and constantly change, cause easily that river engineering is heavy stings, caves in, increase the complexity of emergency flood fighting in flood season; Particularly because the riverbed is washed away significantly, the great river drawdown causes the machine electric pumping station separation of flow along the river, badly influences littoral industrial and agricultural production.Since last century the seventies; This phenomenon just receives showing great attention to of domestic and international water conservancy working person; And carried out a large amount of research, for further being familiar with " taking off the river bed " phenomenon, people lay a good foundation, but because the randomness that " taking off the river bed " phenomenon takes place; Be difficult in and record stronger " taking off the river bed " field data of following property in the reality, the research of this problem also can only break through from test simulation.
Jiang Enhui etc. have proposed " high sediment concentration waterflood river bed tearing simulation test device ", and this technology has obtained china national practical new-type patent mandate (ZL 200920217654.4) in October, 2010, provide the foundation for carrying out " taking off the river bed " simulated test.In addition; Also utilize the flyash of different gradation to simulate riverbed layering alluvial structure; Clay piece when particularly utilizing impalpable powder coal ash simulation " taking off the river bed " to take place; Based on " taking off the river bed " simulation test device, in flume test, successfully simulated " taking off the river bed " phenomenon truly, " high sediment concentration waterflood river bed tearing simulation test method " of application also obtained national inventing patent mandate (ZL200910177288.9) in 2011.
Prototype measurement, live video and simulation laboratory test all show; " clay piece " uncovered, overturn, surfaced in the process; Sometimes the clay piece situation that can occur fractureing can see also that sometimes " clay piece " uncover in the back monoblock soil body slump water and can not rupture and be scattered.In order further to understand fully the whys and wherefores, the change procedure of clay piece internal force during must furtheing investigate the Yellow River high sand-containing flood and " taking off the river bed ".And at present, model itself can't be monitored the change procedure of " clay piece " stress own at all, and flume experiment and model testing do not have an effective monitoring technology of cover and a method yet.The utility model is that the monitoring of clay piece internal force change procedure during the Yellow River high sand-containing flood " is taken off the river bed " provides a practicable monitoring device of cover and a method.
The utility model content:
This utility model content is in utility model patent " high sediment concentration waterflood river bed tearing simulation test device " (ZL 200920217654.4) and patent of invention " high sediment concentration waterflood river bed tearing simulation test method " (ZL200910177288.9) on the basis; In order in process of the test, " clay piece " to be monitored by the change procedure of " clay piece " internal stress in the process of uncovering, overturn, surface own in real time; Must make a kind of clay piece of special use, the utility model will provide a kind of producing device of this clay piece.The technical scheme of the utility model is:
A kind of high sediment concentration waterflood river bed tearing simulation test is with the producing device of clay piece; Comprise mold box and a plurality of single-point type diaphragm pressure sensor; Respectively be fixed with 1 steel bracket in the rear and front end of said mold box, fixed placement has a slide bar on said steel bracket; The left and right sides and bottom at said mold box are provided with a plurality of set bolts, on said set bolt, are that high-strength carbon fiber is arranged; Said a plurality of single-point type diaphragm pressure sensor is placed in the mold box at interval; The bottom of each said single-point type diaphragm pressure sensor and the left and right sides are connected fixing with said high-strength carbon fiber on tying up to said set bolt, top is fixed on the said slide bar through high-strength carbon fiber.
The high sediment concentration waterflood river bed tearing simulation test of the utility model is with the producing device of clay piece; Simple in structure, easy to operate, the clay piece of making; In high sediment concentration waterflood river bed tearing simulation test; Can monitor the inner STRESS VARIATION situation of clay piece itself in real time, exactly, this difficult problem of phenomenon provides feasible test method and device for the river bed " is taken off " in further further investigation the Yellow River, lays a good foundation for seeing clearly that " taking off the river bed " phenomenon genesis mechanism, foundation " are taken off the river bed " and washed away index; For formulating the Yellow River flood control prediction scheme and the design of flood control engineering programming, important basis and reference are provided.
Description of drawings:
Fig. 1 is the front view of the producing device of the utility model
Fig. 2 is the vertical view of the producing device of the utility model
Fig. 3 is the lateral view of the producing device of the utility model
The single-point type diaphragm pressure sensor sketch map that Fig. 4 adopts for the utility model
Fig. 5 is the monitoring system sketch map of the clay piece of employing the utility model making
Among the figure, 1 is mold box, and 2 is steel bracket, and 3 is slide bar, and 4 is high-strength carbon fiber, and 5 is the single-point type diaphragm pressure sensor, and 6 is coarse sands layer, and 7 is the clay piece, and 8 is data collecting instrument, and V is a water (flow) direction, and d is a clay piece thickness.
The specific embodiment:
A kind of high sediment concentration waterflood river bed tearing simulation test is with the producing device of clay piece; Comprise mold box 1 and a plurality of single-point type diaphragm pressure sensors 5; Front and back at said mold box 1 respectively are fixed with 1 steel bracket 2 for two sections, and fixed placement has a slide bar 3 on said steel bracket 2; The left and right sides and bottom at said mold box 1 are provided with a plurality of set bolts, are that high-strength carbon fiber 4 is arranged on said set bolt; Said a plurality of single-point type diaphragm pressure sensor 5 is placed in the mold box 1 at interval; The bottom of each said single-point type diaphragm pressure sensor 5 and the left and right sides are fixing through the said high-strength carbon fiber 4 that ties up on the said set bolt, and top is fixed on the said slide bar 3 through high-strength carbon fiber.
Adopt the producing device of the utility model to make the clay piece, when carrying out real-time monitoring that high sand-containing flood takes off clay piece internal force change procedure during the river bed, may further comprise the steps:
(1) the particular manufacturing craft box is made
According to the different size of clay piece 7, design and produce the organic glass mold box 1 of a series of different sizes, like Fig. 1-shown in Figure 3.Each fixing 1 steel bracket 2 of mold box 1 both sides is placed a slide bar 3 above.Single-point type diaphragm pressure sensor 5 (seeing shown in Figure 4) are adopted in test; Sensor designs is laid network, and single-point type diaphragm pressure sensor 5 positions can be moved through slide bar 3. and the left and right sides of mold box 1 and bottom are provided with a plurality of set bolts, the front end perforating; Last series high strength carbon fiber 4; It is fixing that each single-point type diaphragm pressure sensor 5 all passes through up and down 4 high-strength carbon fibers 4, guarantees that each single-point type diaphragm pressure sensor 5 all is arranged in the first half of mold box 1, makes single-point type diaphragm pressure sensor 5 be in the pressure zone of clay piece 7 fully; And vertical fixing is in the monitoring location of design, and stable.
(2) the clay piece is prefabricated
Utilizing median particle diameter to process sand content less than the impalpable powder coal ash of 0.01mm or natural sand is 800～1000kg/m
3Slurry, with agitator it is stirred, for use; Adjustment single-point type diaphragm pressure sensor 5 vertically stands up in the pressure zone of clay piece 7 it; Tension is 4 high-strength carbon fibers 4 up and down, make it firm; The data wire that connects single-point type diaphragm pressure sensor 5 is drawn from the afterbody top of mold box 1; Pour the slurry that stirs into mold box 1 li gradually, parked 12 hours, make it fixed, process clay piece 7.
(3) pilot system is laid
Reach " high sediment concentration waterflood river bed tearing simulation test method " according to " high sediment concentration waterflood river bed tearing simulation test device "; The bottom of gullet laying depth be coarse granule flyash (median particle diameter is about 0.05mm) more than the 15cm with the coarse sands layer 6 of simulation on the riverbed, on coarse sands layer 6, reserve the space of clay piece 7 design sizes size; The pre-prepared colloid clod 7 that is connected with single-point type diaphragm pressure sensor 5 is put into headspace, and data wire directly is connected with data collecting instrument 8.
(4) outflow test
Discharging water makes an experiment, be arranged in the clay piece 7 single-point type diaphragm pressure sensor 5 can to clay piece in " taking off the river bed " process uncover preceding, mention moment and upset during the internal force of corresponding site change and to gather in real time; Based on the real-time internal force monitored data of three sections, in conjunction with computational tools such as finite element theory and Mathematical Modelings, calculate clay piece 7 whole interior three-dimensional pressurized, draw situation, generate the three-dimensional wave spectrogram that clay piece internal force changes.
Claims (1)
1. a high sediment concentration waterflood river bed tearing simulation test is with the producing device of clay piece; Comprise mold box (1) and a plurality of single-point type diaphragm pressure sensor (5); Respectively be fixed with 1 steel bracket (2) in the rear and front end of said mold box (1), fixed placement has a slide bar (3) on said steel bracket (2); The left and right sides and bottom at said mold box (1) are provided with a plurality of set bolts, are that high-strength carbon fiber (4) is arranged on said set bolt; Said a plurality of single-point type diaphragm pressure sensors (5) are placed in the mold box (1) at interval; The bottom of each said single-point type diaphragm pressure sensor (5) and the left and right sides are connected fixing with said high-strength carbon fiber (4) on tying up to said set bolt, top is fixed on the said slide bar (3) through high-strength carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220014995 CN202595695U (en) | 2012-01-13 | 2012-01-13 | Device for making clay block used in simulation test of high sand concentration flood 'bottom tearing scour' |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220014995 CN202595695U (en) | 2012-01-13 | 2012-01-13 | Device for making clay block used in simulation test of high sand concentration flood 'bottom tearing scour' |
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| Publication Number | Publication Date |
|---|---|
| CN202595695U true CN202595695U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220014995 Expired - Fee Related CN202595695U (en) | 2012-01-13 | 2012-01-13 | Device for making clay block used in simulation test of high sand concentration flood 'bottom tearing scour' |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388320A (en) * | 2013-08-16 | 2013-11-13 | 天津虹炎科技有限公司 | Washing judging method for river bottom uncovering of high-sandiness flood |
| CN103422460A (en) * | 2013-07-17 | 2013-12-04 | 华北水利水电大学 | Method for comprehensively distinguishing high-sand-content flood river-bottom-tearing washing critical conditions |
| CN103437317A (en) * | 2013-08-16 | 2013-12-11 | 天津虹炎科技有限公司 | High-water-content flood river-bottom-uncovering scouring critical condition comprehensive distinguishing method |
| CN116067342A (en) * | 2023-04-06 | 2023-05-05 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | River model bed surface elevation data measuring device |
-
2012
- 2012-01-13 CN CN 201220014995 patent/CN202595695U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422460A (en) * | 2013-07-17 | 2013-12-04 | 华北水利水电大学 | Method for comprehensively distinguishing high-sand-content flood river-bottom-tearing washing critical conditions |
| CN103388320A (en) * | 2013-08-16 | 2013-11-13 | 天津虹炎科技有限公司 | Washing judging method for river bottom uncovering of high-sandiness flood |
| CN103437317A (en) * | 2013-08-16 | 2013-12-11 | 天津虹炎科技有限公司 | High-water-content flood river-bottom-uncovering scouring critical condition comprehensive distinguishing method |
| CN103388320B (en) * | 2013-08-16 | 2015-04-15 | 天津虹炎科技有限公司 | Washing judging method for river bottom uncovering of high-sandiness flood |
| CN103437317B (en) * | 2013-08-16 | 2015-09-02 | 天津虹炎科技有限公司 | High sand-containing flood " is taken off river bed " and is washed away critical condition comprehensive distinguishing method |
| CN116067342A (en) * | 2023-04-06 | 2023-05-05 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | River model bed surface elevation data measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140113 |