CN102605738A - Method for monitoring change of internal force of resin mortar block during riverbed blowing up scouring period of hyper-concentration sediment flood - Google Patents
Method for monitoring change of internal force of resin mortar block during riverbed blowing up scouring period of hyper-concentration sediment flood Download PDFInfo
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- CN102605738A CN102605738A CN2012100630685A CN201210063068A CN102605738A CN 102605738 A CN102605738 A CN 102605738A CN 2012100630685 A CN2012100630685 A CN 2012100630685A CN 201210063068 A CN201210063068 A CN 201210063068A CN 102605738 A CN102605738 A CN 102605738A
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Abstract
The invention relates to a physical model with IPC (international patent classification) of E02B1/02, in particular to an analog monitoring method for a water flow turbulent fluctuation structure at the bottom of a resin mortar block during 'riverbed blowing up' scouring period of hyper-concentration sediment flood. The analog monitoring method includes prefabricating the resin mortar block by the aid of an organic glass mode box; arranging platy film type pressure sensors at the bottom of the resin mortar block; and leading a data line to be connected with a data acquisition instrument to acquiring water flow pressure signals in real time. In the analog monitoring method, the structure is simple, operation is convenient, a water flow turbulent fluctuation condition at the bottom of the resin mortar block is monitored accurately, a feasible testing method and a device are provided for further deeply researching the difficult problem of 'riverbed blowing up' phenomenon of the Yellow River, and the analog monitoring method lays the foundation for recognizing the occurrence mechanism of the 'riverbed blowing up' phenomenon and building a 'riverbed blowing up' scouring index, and provides important basis and reference for formulating a Yellow River flood control plan and planning and designing a flood prevention project.
Description
Technical field:
The present invention relates to a kind of monitoring method of hydraulic model test, its IPC international Patent classificating number is E02B1/02, the internal force change procedure monitoring method of clay piece during uncovering, overturning in the process that particularly a kind of simulation high sand-containing flood " is taken off the river bed ".
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 present invention is that the monitoring of clay piece internal force change procedure provided a practicable monitoring device of cover and a method during the Yellow River high sand-containing flood " was taken off the river bed ".
Summary of the invention:
This summary of the invention is at utility model patent " high sediment concentration waterflood river bed tearing simulation test device " (ZL200920217654.4) and on patent of invention " high sediment concentration waterflood river bed tearing simulation test method " (ZL 200910177288.9) basis; Monitored in real time by the change procedure of " clay piece " internal stress in the process of uncovering, overturn, surface own to " clay piece ", technical scheme of the present invention is:
A kind of high sand-containing flood is taken off the monitoring method of clay piece internal force change procedure during the river bed, may further comprise the steps:
(1) makes mold box
According to the different size of clay piece, make the organic glass mold box of a series of different sizes; Each fixing 1 steel bracket in the rear and front end of said mold box, slide bar of fixed placement on said steel bracket; The left and right sides and bottom at said mold box are provided with a plurality of set bolts, in the front end perforating of said set bolt, and last series high strength carbon fiber; A plurality of single-point type diaphragm pressure sensors are placed in the mold box; The bottom of each said single-point type diaphragm pressure sensor and the left and right sides are fixed through the said high-strength carbon fiber that ties up on the said set bolt, and top is fixed on the said slide bar through high-strength carbon fiber.
(2) the clay piece is prefabricated
Adopt impalpable powder coal ash or the natural superfine sand of median particle diameter less than 0.01mm, put into a bigger container, add water, with agitator it is stirred, processing sand content is 800～1000kg/m
3Slurry, for use; Adjust said single-point type diaphragm pressure sensor, it is vertically stood up in the pressure zone of clay piece; Strain 4 high-strength carbon fibers up and down on the said single-point type diaphragm pressure sensor, make it firm; The data wire that connects said single-point type diaphragm pressure sensor is drawn from the afterbody top of said mold box; Said slurry is poured in the mold box gradually, parked 12 hours, make it fixed, process the clay piece.
(3) pilot system is laid
Lay the rough sand layer on the coarse granule flyash simulation riverbed that median particle diameter is 0.05mm in the bottom of experimental tank, on the rough sand layer of said simulation, reserve the space of clay piece design size size; The said clay piece that is connected with said single-point type diaphragm pressure sensor is put into headspace, said data wire is connected with data collecting instrument.
(4) outflow test
Discharging water makes an experiment, be arranged in the clay piece said single-point type diaphragm pressure sensor to take off clay piece in the process of river bed uncover preceding, mention moment and upset during the internal force of corresponding site change and gather in real time; Based on the real-time internal force monitored data of three sections, in conjunction with finite element theory and Mathematical Modeling, calculate the inner three-dimensional pressurized of clay piece, draw situation, generate the three-dimensional wave spectrogram that clay piece internal force changes.
High sand-containing flood of the present invention is taken off the monitoring method of clay piece internal force change procedure during the river bed; Simple in structure; Easy to operate; 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 a mold box front view of the present invention
Fig. 2 is a mold box vertical view of the present invention
Fig. 3 is a mold box lateral view of the present invention
The single-point type diaphragm pressure sensor sketch map that Fig. 4 adopts for the present invention
Fig. 5 is a monitoring device sketch map of the present invention
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:
High sand-containing flood of the present invention is taken off the monitoring method of clay piece internal force change procedure during the river bed, during practical implementation, 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 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 5, guarantees that each sensor 5 all is arranged in the first half of mold box 1, makes load cell 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 thin film sensor 5 vertically stands up in the pressure zone of clay piece 7 it; Tension is 4 high-strength carbon fibers 5 up and down, make it firm; The data wire that connects single-point type thin film 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 rough sand layer 6 of simulation on the riverbed, on rough sand layer 6, reserve the space of clay piece 7 design sizes size; The pre-prepared colloid clod 7 that is connected with pressure sensor 5 is put into headspace, data wire direct be connected with data acquisition unit 8 (as shown in Figure 5).
(4) outflow test
Discharging water makes an experiment, be arranged in the clay piece 7 single-point type thin-film 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 sand-containing flood is taken off the monitoring method and the monitoring device of clay piece internal force change procedure during the river bed, may further comprise the steps:
(1) makes mold box
According to the different size of clay piece, make the organic glass mold box of a series of different sizes; Each fixing 1 steel bracket in the rear and front end of said mold box, slide bar of fixed placement on said steel bracket; The left and right sides and bottom at said mold box are provided with a plurality of set bolts, in the front end perforating of said set bolt, and last series high strength carbon fiber; A plurality of single-point type diaphragm pressure sensors are placed in the mold box; The bottom of each said single-point type diaphragm pressure sensor and the left and right sides are fixed through the said high-strength carbon fiber that ties up on the said set bolt, and top is fixed on the said slide bar through high-strength carbon fiber;
(2) the clay piece is prefabricated
Adopt impalpable powder coal ash or the natural superfine sand of median particle diameter less than 0.01mm, put into a bigger container, add water, with agitator it is stirred, processing sand content is 800～1000kg/m
3Slurry, for use; Adjust said single-point type diaphragm pressure sensor, it is vertically stood up in the pressure zone of clay piece; Strain 4 high-strength carbon fibers up and down on the said single-point type diaphragm pressure sensor, make it firm; The data wire that connects said single-point type diaphragm pressure sensor is drawn from the afterbody top of said mold box; Said slurry is poured in the mold box gradually, parked 12 hours, make it fixed, process the clay piece;
(3) pilot system is laid
Lay the rough sand layer on the coarse granule flyash simulation riverbed that median particle diameter is 0.05mm in the bottom of experimental tank, on the rough sand layer of said simulation, reserve the space of clay piece design size size; The said clay piece that is connected with said single-point type diaphragm pressure sensor is put into headspace, said data wire is connected with data collecting instrument;
(4) outflow test
Discharging water makes an experiment, be arranged in the clay piece said single-point type diaphragm pressure sensor to take off clay piece in the process of river bed uncover preceding, mention moment and upset during the internal force of corresponding site change and gather in real time; Based on the real-time internal force monitored data of three sections, in conjunction with finite element theory and Mathematical Modeling, calculate the inner three-dimensional pressurized of clay piece, draw situation, generate the three-dimensional wave spectrogram that clay piece internal force changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210063068 CN102605738B (en) | 2012-01-13 | 2012-01-13 | Method for monitoring change of internal force of resin mortar block during riverbed blowing up scouring period of hyper-concentration sediment flood |
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| CN 201210063068 CN102605738B (en) | 2012-01-13 | 2012-01-13 | Method for monitoring change of internal force of resin mortar block during riverbed blowing up scouring period of hyper-concentration sediment flood |
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| CN102605738A true CN102605738A (en) | 2012-07-25 |
| CN102605738B CN102605738B (en) | 2013-06-05 |
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Cited By (6)
| 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 |
| CN103422461A (en) * | 2013-07-17 | 2013-12-04 | 华北水利水电大学 | Method for judging 'bottom tearing' scour caused by hyper-concentration floods |
| 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 |
| CN110132539A (en) * | 2019-06-12 | 2019-08-16 | 桂林电子科技大学 | The experiment porch of non-contact measurement axial symmetric fluid film morphology |
| CN110485363A (en) * | 2019-08-31 | 2019-11-22 | 华北水利水电大学 | Flood acts on the simulator and multiple spot method of real-time of lower riverbed dynamic change |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618644A (en) * | 1984-06-25 | 1986-01-16 | Matsushita Electric Works Ltd | Analyzing device for water hammer phenomenon |
| DE10050985A1 (en) * | 2000-10-16 | 2002-05-16 | Ima Kunststofftechnik Gmbh | Flow simulation unit for fluids, comprises at least one flow channel, with barrier sections formed from a two dimensional deformable material |
| CN101074899B (en) * | 2006-05-19 | 2010-05-12 | 河海大学 | Method for determining runway lawn slope impact-resistance |
| CN101713175B (en) * | 2009-09-29 | 2011-05-25 | 黄河水利委员会黄河水利科学研究院 | High sediment concentration waterflood river bed tearing simulation test method |
-
2012
- 2012-01-13 CN CN 201210063068 patent/CN102605738B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618644A (en) * | 1984-06-25 | 1986-01-16 | Matsushita Electric Works Ltd | Analyzing device for water hammer phenomenon |
| DE10050985A1 (en) * | 2000-10-16 | 2002-05-16 | Ima Kunststofftechnik Gmbh | Flow simulation unit for fluids, comprises at least one flow channel, with barrier sections formed from a two dimensional deformable material |
| CN101074899B (en) * | 2006-05-19 | 2010-05-12 | 河海大学 | Method for determining runway lawn slope impact-resistance |
| CN101713175B (en) * | 2009-09-29 | 2011-05-25 | 黄河水利委员会黄河水利科学研究院 | High sediment concentration waterflood river bed tearing simulation test method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422461A (en) * | 2013-07-17 | 2013-12-04 | 华北水利水电大学 | Method for judging 'bottom tearing' scour caused by hyper-concentration floods |
| 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 |
| CN103422461B (en) * | 2013-07-17 | 2015-06-10 | 华北水利水电大学 | Method for judging 'bottom tearing' scour caused by hyper-concentration floods |
| 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 |
| CN110132539A (en) * | 2019-06-12 | 2019-08-16 | 桂林电子科技大学 | The experiment porch of non-contact measurement axial symmetric fluid film morphology |
| CN110132539B (en) * | 2019-06-12 | 2024-01-26 | 桂林电子科技大学 | Non-contact experimental platform for measuring morphology of axisymmetric fluid film |
| CN110485363A (en) * | 2019-08-31 | 2019-11-22 | 华北水利水电大学 | Flood acts on the simulator and multiple spot method of real-time of lower riverbed dynamic change |
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| CN102605738B (en) | 2013-06-05 |
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