CN103207265A - Reservoir water level fluctuation control method and reservoir water level fluctuation control device used for landslide physical model test platform - Google Patents
Reservoir water level fluctuation control method and reservoir water level fluctuation control device used for landslide physical model test platform Download PDFInfo
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- CN103207265A CN103207265A CN2013101124863A CN201310112486A CN103207265A CN 103207265 A CN103207265 A CN 103207265A CN 2013101124863 A CN2013101124863 A CN 2013101124863A CN 201310112486 A CN201310112486 A CN 201310112486A CN 103207265 A CN103207265 A CN 103207265A
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Abstract
The invention discloses a reservoir water level fluctuation control method and a reservoir water level fluctuation control device for a landslide physical model test platform. The device comprises a linear displacement sensor, a floating ball, a water supply pump, a water discharge pump, a water inlet pipe, a water discharge pipe and an integrated control terminal, wherein the floating ball is arranged on the end part of a displacement rod of the linear displacement sensor, and is placed on the water surface of a reservoir water level device; the linear displacement sensor is used for measuring the fluctuation displacement of the reservoir water level device; and the integrated control terminal is used for simulating level fluctuation of the reservoir water level device by controlling the water supply pump and the water discharge pump according to the displacement measured by the linear displacement sensor. The device provided by the invention avoids the data instability caused by nonuniform local water pressure of a water pressure sensor, also avoids the influence on a sensor main body caused by silts, so as to ensure the use accuracy even if silts exist. Besides, the device can avoid data fluctuation when controlling the water level to rise and drop by forming a water inlet hole below the water surface and forming a discharge hole in the bottom of a water pool.
Description
Technical field
The present invention relates to the used reservoir level lifting of physical model experiment field, indoor landslide, particularly a kind of reservoir level fluctuation method and apparatus for landslide thing mould experiment porch.
Background technology
Existing landslide physical model reservoir level jacking system mainly utilizes water pressure sensor, water supply pump, draining water pump and integrated control terminal to form control loop and finishes.Water pressure sensor is responsible for the water pressure data in collection model reservoir pond, again data is fed back to control terminal, thereby control terminal is according to the duty of the reservoir level fluctuation discrepancy in elevation of setting, position and fluctuation speed control water supply pump, draining water pump.
Though this kind device can be simulated the fluctuation of reservoir, there are a lot of drawbacks of using, this drawback has not only influenced the precision of reservoir reservoir level lifting, and can not reach the requirement of ratio of similitude on simulated reservoir fluctuation in stage speed.Water pressure sensor will wonder that the height of liquid level must be installed in the bottom in model reservoir pond, and be accompanied by silt in the model experiment process all the time, especially the basin bottom of sensor installation, this has just seriously influenced the service precision of sensor, even influences the normal use of sensor.Supply water in addition and cause the instability of the local hydraulic pressure of reservoir level device also further to influence precision during the draining pump working.
Therefore a kind of not only can the fluctuation of Simulated Water reservoir level, and can seem particularly important according to the apparatus and method of the accurate Simulated Water reservoir level of model ratio of similitude fluctuation speed.
Summary of the invention
The technical problem to be solved in the present invention overcomes the problems referred to above exactly, proposes a kind of reservoir level fluctuation method and apparatus for landslide thing mould experiment porch, can be according to the accurate simulated reservoir fluctuation in stage of ratio of similitude.
In order to address the above problem, the invention provides a kind of device of the reservoir level fluctuation for landslide thing mould experiment porch, comprising: linear displacement transducer, ball float, water supply pump, draining water pump, water inlet pipe, drainpipe and integrated control terminal, wherein,
Described ball float is arranged on the end of the displacement bar of described linear displacement transducer, and is arranged on the water surface of reservoir level device;
Described linear displacement transducer is used for the displacement according to the traverse measurement reservoir level device fluctuation in stage of described ball float;
Described integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, for the displacement that measures according to described linear displacement transducer, by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level;
Described water supply pump links to each other with described water inlet pipe, is used for control according to described integrated control terminal to the water filling of reservoir level device;
Described draining water pump links to each other with described drainpipe, is used for control according to described integrated control terminal from the draining of reservoir level device.
Preferably, said apparatus also has following characteristics:
Described integrated control terminal comprises main control terminal, Acquisition Circuit, control circuit and frequency-variable controller, wherein,
Described main control terminal links to each other with control circuit with described Acquisition Circuit respectively, be used for gathering the displacement that described linear displacement transducer measures by Acquisition Circuit, and according to the displacement that described linear displacement transducer measures, control water supply pump and draining water pump by control circuit and frequency-variable controller;
Described Acquisition Circuit links to each other with described linear displacement transducer, is used for gathering the displacement that described linear displacement transducer measures, and is sent to described main control terminal;
Described frequency-variable controller links to each other with the draining water pump with described water supply pump respectively;
Described control circuit links to each other with frequency-variable controller, is used for the indication according to main control terminal, by frequency-variable controller control water supply pump and draining water pump.
Preferably, said apparatus also has following characteristics:
One end of described water inlet pipe connects water supply pump, and the other end is arranged in the water of reservoir level device, is lower than the lowest water level line of Simulated Water reservoir level.
Preferably, said apparatus also has following characteristics:
One end of described drainpipe connects the draining water pump, and the other end is positioned at the reservoir level bottom of device, is coated with the fine sand net at the freeing port place.
Preferably, said apparatus also has following characteristics:
Described draining water pump is axial flow pump, and described water inlet water pump is submersible pump.
In order to address the above problem, the invention provides a kind of employing and install the method that realizes for the reservoir level fluctuation of landslide thing mould experiment porch as mentioned above, comprising:
According to simulation Reservoir region fluctuation in stage situation, again in conjunction with the ratio of similitude of the actual reservoir water level discrepancy in elevation, selected linear displacement transducer range is installed on the end of linear displacement transducer displacement bar with ball float, linear displacement transducer is mounted on the assigned address of reservoir level device;
Fix a drainpipe in the reservoir level bottom of device, drainpipe is linked to each other with the draining water pump;
Be installed into water pipe on reservoir level device top, an end of water inlet pipe is installed the lowest water level line that is lower than the Simulated Water reservoir level, and the other end of water inlet pipe connects the water inlet water pump;
Integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, and the displacement that measures according to described linear displacement transducer is by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level.
The present invention has following beneficial effect:
At first, adopt displacement transducer and ball float, avoided water pressure sensor because the local inhomogeneous data instability that causes of hydraulic pressure, also avoided because the sensor main body that silt causes is influenced, it itself is not sensor main body that ball float contacts with water body, does not still influence service precision even disturbed by silt.Secondly, the inlet opening is under the liquid level and intakes, and is very little and relatively stable for liquid fluctuating, and the control of the speed that therefore goes up the data fluctuations phenomenon can not occur.Again, osculum is in the bottom in whole pond, and is fainter for the influence of liquid level, more stable to the control of liquid level falling speed.
Description of drawings
Fig. 1 is the reservoir level fluctuation device synoptic diagram that is used for landslide thing mould experiment porch of the embodiment of the invention.
Embodiment
Hereinafter will be elaborated to embodiments of the invention by reference to the accompanying drawings.Need to prove that under the situation of not conflicting, the embodiment among the application and the feature among the embodiment be combination in any mutually.
The present invention is based on Inst. of Mechanics, CAS's major landslip physical model experiment platform, be to provide a kind of can be according to the method and apparatus of the accurate simulated reservoir fluctuation in stage of ratio of similitude, it is particularly important that this device destroys the process that develops for landslide under the research hydrodynamic force risk factor.
As shown in Figure 1, be used for the device of the reservoir level fluctuation of landslide thing mould experiment porch, it is characterized in that, comprising: linear displacement transducer, ball float, water supply pump, draining water pump, water inlet pipe, drainpipe and integrated control terminal, wherein,
Described ball float is arranged on the end of the displacement bar of described linear displacement transducer, and is arranged on the water surface of reservoir level device;
Described linear displacement transducer is used for the displacement according to the traverse measurement reservoir level device fluctuation in stage of described ball float;
Described integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, for the displacement that measures according to described linear displacement transducer, by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level;
Described water supply pump links to each other with described water inlet pipe, is used for control according to described integrated control terminal to the water filling of reservoir level device;
Described draining water pump links to each other with described drainpipe, is used for control according to described integrated control terminal from the draining of reservoir level device.
Particularly, described integrated control terminal comprises main control terminal, Acquisition Circuit, control circuit and frequency-variable controller, wherein,
Described main control terminal links to each other with control circuit with described Acquisition Circuit respectively, be used for gathering the displacement that described linear displacement transducer measures by Acquisition Circuit, and according to the displacement that described linear displacement transducer measures, control water supply pump and draining water pump by control circuit and frequency-variable controller;
Described Acquisition Circuit links to each other with described linear displacement transducer, is used for gathering the displacement that described linear displacement transducer measures, and is sent to described main control terminal;
Described frequency-variable controller links to each other with the draining water pump with described water supply pump respectively;
Described control circuit links to each other with frequency-variable controller, is used for the indication according to main control terminal, by frequency-variable controller control water supply pump and draining water pump.
Method of the present invention can comprise the steps:
(1) according to simulation Reservoir region fluctuation in stage situation, again in conjunction with the ratio of similitude of the actual reservoir water level discrepancy in elevation, selected linear displacement transducer range is installed on the end of linear displacement transducer displacement bar with ball float, linear displacement transducer is mounted on the appropriate location of reservoir level device.
(2) fix a drainpipe in the reservoir level bottom of device, drainpipe is linked to each other with the draining water pump; Be installed into water pipe on reservoir level device top, one end of water inlet pipe is installed the lowest water level line (the water pipe end is lower than waterline and mainly considers to allow water level slowly rise) that is lower than the Simulated Water reservoir level under ripple disable, stable situation progressively, the other end of water inlet pipe connects the water inlet water pump.
When fixing a drainpipe, can use gas welding to draw hole and welding drainpipe in the reservoir level bottom of device, cover fine sand net (prevent from simulating the silt that falls in the experimentation of landslide and stop up water pipe) at osculum.
The draining water pump adopts axial flow pump, one-in-and-one-out, and the water inlet water pump adopts submersible pump to get final product, and the water inlet water pump is positioned in the pond of making in advance get final product, and the turnover water pump all adopts 220V Alternating Current Power Supply, frequency of utilization 0-50HZ.
(3) integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, and the displacement that measures according to described linear displacement transducer is by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level.
In step (3), the data line of linear displacement transducer is connected with the collecting circuit board of integrated control terminal, the power supply line of water supply pump, draining water pump is connected with the frequency-variable controller of integrated control terminal, again frequency-variable controller is connected with the control circuit of integrated control terminal, main control terminal is connected with control circuit with Acquisition Circuit, namely finishes the installation of hardware entities part.
When needing the situation of simulated reservoir water level rise, software interface input water level in main control terminal increases the peak value water level that reaches, and the speed that the input water level increases, water supply pump is started working, this moment, linear displacement transducer was gathered displacement data, Acquisition Circuit feeds back to main control terminal with the displacement data that collects, main control terminal is regulated the frequency of frequency-variable controller by control circuit according to the water level peak value that arranges and water level speed, this moment, the supply voltage of water pump changed thereupon, thereby the change operating power, the change that so just can control inflow reaches application target.
The simulated reservoir water level falls with above-mentioned principle.To carry out repeatedly data scaling to it in actual use, thereby reach application target.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a device that is used for the reservoir level fluctuation of landslide thing mould experiment porch is characterized in that, comprising: linear displacement transducer, ball float, water supply pump, draining water pump, water inlet pipe, drainpipe and integrated control terminal, wherein,
Described ball float is arranged on the end of the displacement bar of described linear displacement transducer, and is arranged on the water surface of described reservoir level device;
Described linear displacement transducer is used for the displacement according to the traverse measurement reservoir level device fluctuation in stage of described ball float;
Described integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, for the displacement that measures according to described linear displacement transducer, by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level;
Described water supply pump links to each other with described water inlet pipe, is used for control according to described integrated control terminal to the water filling of reservoir level device;
Described draining water pump links to each other with described drainpipe, is used for control according to described integrated control terminal from the draining of reservoir level device.
2. device as claimed in claim 1 is characterized in that,
Described integrated control terminal comprises main control terminal, Acquisition Circuit, control circuit and frequency-variable controller, wherein,
Described main control terminal links to each other with control circuit with described Acquisition Circuit respectively, be used for gathering the displacement that described linear displacement transducer measures by Acquisition Circuit, and according to the displacement that described linear displacement transducer measures, control water supply pump and draining water pump by control circuit and frequency-variable controller;
Described Acquisition Circuit links to each other with described linear displacement transducer, is used for gathering the displacement that described linear displacement transducer measures, and is sent to described main control terminal;
Described frequency-variable controller links to each other with the draining water pump with described water supply pump respectively;
Described control circuit links to each other with frequency-variable controller, is used for the indication according to main control terminal, by frequency-variable controller control water supply pump and draining water pump.
3. device as claimed in claim 1 is characterized in that,
One end of described water inlet pipe connects water supply pump, and its other end is arranged in the water of reservoir level device, is lower than the lowest water level line of Simulated Water reservoir level.
4. device as claimed in claim 1 is characterized in that,
One end of described drainpipe connects the draining water pump, and its other end is positioned at the reservoir level bottom of device, is coated with the fine sand net at the freeing port place.
5. device as claimed in claim 1 is characterized in that,
Described draining water pump is axial flow pump, and described water inlet water pump is submersible pump.
6. any device realizes being used for the method for the reservoir level fluctuation of landslide thing mould experiment porch in an employing such as the claim 1~5, comprising:
According to simulation Reservoir region fluctuation in stage situation, again in conjunction with the ratio of similitude of the actual reservoir water level discrepancy in elevation, selected linear displacement transducer range is installed on the end of linear displacement transducer displacement bar with ball float, linear displacement transducer is mounted on the assigned address of reservoir level device;
Fix a drainpipe in the reservoir level bottom of device, drainpipe is linked to each other with the draining water pump;
Be installed into water pipe on reservoir level device top, an end of water inlet pipe is installed the lowest water level line that is lower than the Simulated Water reservoir level, and the other end of water inlet pipe connects the water inlet water pump;
Integrated control terminal links to each other with described linear displacement transducer, water supply pump and draining water pump respectively, and the displacement that measures according to described linear displacement transducer is by the fluctuation of control water supply pump and draining water pump simulated reservoir water level device water level.
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Cited By (6)
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CN103531071A (en) * | 2013-09-29 | 2014-01-22 | 清华大学 | Large-sized landslide intelligent model testing system under combined effect of rainfall and reservoir water |
CN103592424A (en) * | 2013-11-29 | 2014-02-19 | 四川大学 | Physical model test apparatus for confined groundwater in bedding bank slope |
CN103884827A (en) * | 2014-01-13 | 2014-06-25 | 四川大学 | Magnetic field force-seepage force model test device applicable to earth-rock slope |
CN104200732A (en) * | 2014-07-08 | 2014-12-10 | 广东省水利水电科学研究院 | Landslip simulation and control system for slip masses |
CN105203737A (en) * | 2015-10-23 | 2015-12-30 | 三峡大学 | Device and method for simulating influences of drying and watering cycle action generated by water level variation of fluctuating belt of reservoir on reservoir bank slope rock masses |
CN112255390A (en) * | 2020-10-16 | 2021-01-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Centrifugal model test device and method for simulating reservoir bank slope instability induced by water level fluctuation |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103531071A (en) * | 2013-09-29 | 2014-01-22 | 清华大学 | Large-sized landslide intelligent model testing system under combined effect of rainfall and reservoir water |
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CN103592424A (en) * | 2013-11-29 | 2014-02-19 | 四川大学 | Physical model test apparatus for confined groundwater in bedding bank slope |
CN103592424B (en) * | 2013-11-29 | 2015-08-19 | 四川大学 | Bedding bank slope piestic water physical model test device |
CN103884827A (en) * | 2014-01-13 | 2014-06-25 | 四川大学 | Magnetic field force-seepage force model test device applicable to earth-rock slope |
CN103884827B (en) * | 2014-01-13 | 2015-08-26 | 四川大学 | Be applicable to the magnetic field force-seepage force model test apparatus of native stone side slope |
CN104200732A (en) * | 2014-07-08 | 2014-12-10 | 广东省水利水电科学研究院 | Landslip simulation and control system for slip masses |
CN105203737A (en) * | 2015-10-23 | 2015-12-30 | 三峡大学 | Device and method for simulating influences of drying and watering cycle action generated by water level variation of fluctuating belt of reservoir on reservoir bank slope rock masses |
CN112255390A (en) * | 2020-10-16 | 2021-01-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Centrifugal model test device and method for simulating reservoir bank slope instability induced by water level fluctuation |
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