CN105672193A - Testing device and method for simulating gradual breaking of dam body - Google Patents
Testing device and method for simulating gradual breaking of dam body Download PDFInfo
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- CN105672193A CN105672193A CN201610190961.2A CN201610190961A CN105672193A CN 105672193 A CN105672193 A CN 105672193A CN 201610190961 A CN201610190961 A CN 201610190961A CN 105672193 A CN105672193 A CN 105672193A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
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Abstract
The invention discloses a testing device and method for simulating gradual breaking of a dam body, and relates to the field of hydraulic model tests. The testing device comprises dam abutments, the dam body, anchor rods, springs, spring fixing bases, electric systems and a control unit; the dam body is composed of a plurality of cubic blocks with small holes; the anchor rods form a framework structure of the dam body; the electric systems are composed of insulation boxes, micro motors and fixing pins, the insulation boxes are arranged inside the dam abutments and are used for fixing the micro motors and stabilizing the anchor rods and the fixing pins, and the micro motors control the fixing pins to rotate; the control unit is composed of a single-chip microcomputer, a relay, a power source and a power distribution cabinet, and the single-chip microcomputer controls the work progress of the relay and the micro motors. According to the testing device and method, the anchor rods contract and the cubic blocks collapse for simulating the gradual breaking process of the dam body after stressing of a dam is unstable, errors caused by human factors are avoided, the accuracy of dam break tests is improved, and the repeatability is high.
Description
Technical field
The present invention relates to hydraulic model test technical field, it is specifically related to a kind of simulate testing apparatus and the method that dam body bursts gradually.
Background technology
" the first time whole nation water conservancy generaI investigation publication " display issued for 2013, total 98002, the reservoir in the whole nation, total reservoir capacity 9323.12 hundred million m3. Human social development is served extremely important pushing effect by reservoir dam, for Flood Control in Certain Area safety, irrigation, supplying water provides guarantee, is the important component part of China's flood-prevention project system. As time goes on, reservoir is the phenomenon such as ageing and breakage inevitably, forms storehouse, danger, sick storehouse. In world's reservoir dam development process, dam break also causes the event of lives and properties heavy losses to occur repeatedly, and the lesson of a lot of especially big dam-break accident is very painful. The unrestrained top of U.S.'s Johnstown reservoir flood in 1889 collapses dam, dead 4000～10000 people; Nineteen fifty-three, the storm wave of Holland causes about 900 place's dykes to burst, the natural disaster causing Holland the most heavy in history, dead 1835 people, and direct economic loss accounts for the 14% of Dutch GDP then; 1963, Italy's Wa Yiang arch dam reservoir accident, dead 2600 people; 1979, India's graceful Zhu No. two reservoirs collapsed dam, dead 5000～10000 people. According to statistics, 1954～2012 years China has 3520 reservoirs and collapses dam, average annual 59.7. In recent years, the physical environment event such as seismic events and extreme flood significantly increases, and the risk that dam bursts improves constantly.
Based on the seriousness of dam break disaster, people more and more pay attention to the research to dam bursting mechanism. Dam break physical experiments has other method and the unrivaled superiority of means in mechanism of collapsed dam research, and model-test data is the main foundation of great hydro project design and construction.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to provide a kind of simulates testing apparatus and the method that dam body bursts gradually, reduces the personal errors in dam break model trial, it is to increase the repeatability of experiment and precision, overcome the deficiency of existing dam break experimental technique.
Technical scheme: the present invention solves the testing apparatus that the simulation dam body that its technical problem adopts bursts gradually, comprises dam shoulder, dam body, anchor pole, electronic system, spring, spring fixed seat, control unit.Described dam shoulder is positioned at the arranged on left and right sides of dam body, and the cross section of dam shoulder is isosceles trapezoid, is provided with some horizontal holes from top to bottom in shoulder inside, dam. Described anchor pole is positioned at dam shoulder and the inside of dam body, and anchor pole one end is cylindrical end, the other end is male joint or female joint, and the cylindrical end of anchor pole is laid in the horizontal hole of dam shoulder, and the bar of anchor pole is provided with groove with it. Described groove is arranged on anchor pole near the side of cylindrical end. The diameter of described anchor pole is slightly less than the diameter in horizontal hole in dam shoulder, and anchor pole passes the horizontal hole in the circular hole preset in the middle part of insulation booth and dam shoulder. Described electronic system is made up of insulation booth, miniature motor and tumbler pin. It is inner that insulation booth is fixed on dam shoulder, is preset with the circular hole of level in the middle part of insulation booth, and the diameter of circular hole equals the diameter in horizontal hole in dam shoulder. Miniature motor is arranged on insulation booth inside, and is fixed on the bottom of insulation booth. Miniature motor provides the propulsion source of rotary motion to tumbler pin. Tumbler pin is arranged on the rotating shaft of miniature motor, and blocks the groove into anchor pole. It is inner that described spring fixed seat is fixed on dam shoulder, the cylindrical end that spring fixed seat is fixed in spring one end, the other end is fixed on anchor pole. Described control unit is made up of micro-chip, power supply, rly. and power distribution cabinet, it is outside that control unit is arranged on dam shoulder, micro-chip, power supply and rly. are arranged on power distribution cabinet inside, the I/O port of micro-chip by dedicated line respectively rly. with each layer be connected, rly. is connected with miniature motor by electric wire, the progress of work of micro-chip control rly. and miniature motor, power supply provides required electric energy to micro-chip and rly. and miniature motor.
As preferably, described dam body is made up of some layers of rectangular parallelepiped, each layer of rectangular parallelepiped is made up of some the middle cubic blocks being provided with aperture again, runs through aperture by one pair of anchor pole and fix between the cubic block of same layer; Often pair of anchor pole in dam body is formed by connecting with the anchor pole of female joint by an anchor pole with male joint and one, and male joint and female joint mode of connection are socket, and female joint is socketed in male joint; All seal with sealing material between all adjacent cubic blocks and between adjacent rectangular parallelepiped.
As preferably, described anchor pole takes on contract to left and right dam, the contraction of anchor pole relies on the moment pulling force of spring, and collapse of dam process is not by the resistance of bolt effect.
As preferably, described groove is perpendicular to anchor pole, groove is circular arc.
As preferably, described miniature motor is arranged on insulation booth inside, adopt miniature step-by-step motor.
Technical scheme provided by the invention also comprises the test method of the testing apparatus that described simulation dam body bursts gradually, comprises the steps:
1. initial, dam body is takeed on the dam of arranged on left and right sides, keep steady state under spring fixed seat, spring, insulation booth, miniature motor, tumbler pin, anchor pole and upstream hydraulic pressure acting in conjunction, wherein, tumbler pin blocks the groove of anchor pole, spring is in stretched state under the common pulling force effect of spring fixed seat and anchor pole, and often pair of anchor pole is connected to form the inner skeleton of dam body by male joint and female joint in dam body inside;
When 2. testing, switching on power and power to micro-chip, rly. and miniature motor, micro-chip starts to perform internal processes after being energized, and the I/O port being controlled micro-chip by internal processes exports a high level in interval at regular intervals;
3. the inner circuit turn-on when rly. receives high level, connects two miniature electric electromechanical sources of the superiors, and miniature motor is started working, and drives tumbler pin from the groove of anchor pole to inner rotary;
4. after tumbler pin departs from groove, the reactive force of anchor pole is disappeared by tumbler pin, and under the pulling force effect of spring, the anchor pole of the superiors is separated with female joint socket place gradually in male joint, and shrinks to the spring fixed seat at two ends and return to dam shoulder;
5. in anchor pole withdrawal process, the cubic block of the superiors loses the anchorage effect of anchor pole gradually, starts to cave under the static pressure and self gravitation effect of current;
6. micro-chip periodically exports high level, and rly. is triggered by layer, and different layers miniature motor works in succession from top to bottom, and tumbler pin departs from the groove of corresponding anchor pole in succession, and anchor pole is recovered to dam shoulder in succession;
7. in the process in succession regained from top to bottom at anchor pole, cubic block caves in gradually under current scour and self gravitation effect, is finally washed from dam body, and dam body forms effect of bursting from top to bottom;
According to above-mentioned corresponding steps, the simulation test that dam body bursts gradually can be realized, by reclaiming cubic block and editor's micro-chip internal processes, it is possible to carry out dam break revision test, disclose mechanism of collapsed dam, analyze dam-break water flow hydraulic performance.
Useful effect: the testing apparatus that the simulation dam body of the present invention bursts gradually and method, compared with prior art have following useful effect:
(1) the dam bursting mode in the present invention and the time of bursting can by Single Chip Microcomputer (SCM) program controls, add the handiness of test, be conducive to studying the rule of bursting of dam body under different instability condition, deep announcement dam break preparation process and mechanism of bursting are had significance.
(2) dam body in the present invention is made up of some layers of rectangular parallelepiped, and each layer of rectangular parallelepiped is made up of some cubic blocks again, cubic block material therefor and characteristics determined thereof the type and character of dam body. The material of cubic block both can be concrete, it is also possible to be earth and stone material, so dam body both can be concrete gravity dam, it is also possible to be earth rockfill dam. The concrete of different mixture ratio or the earth and stone material of different gradation is adopted to make cubic block, it is possible to realize the stability study of different dam type, different dam material.
(3) anchor pole in the present invention is socketed to form with the anchor pole of female joint by an anchor pole with male joint and one, socket mode can not only meet the demand that anchor pole is freely separated, it is also possible to meets the stable needs that anchor pole bears flow path direction water pressure.
(4) progress of work of the micro-chip control rly. in the present invention and miniature motor, testing apparatus intelligence degree height, the unstability of cubic block is caved in and is relied on water pressure, frictional force and self gravitation, and the whole process of caving in of dam body does not have artificial interference.
Accompanying drawing explanation
Fig. 1 is the testing apparatus schematic perspective view that the present invention simulates dam body and bursts gradually;
Fig. 2 is the connection structural representation of the anchor pole in Fig. 1, electronic system, spring and spring fixed seat;
Fig. 3 is the male joint in Fig. 1 and female joint structural representation;
Fig. 4 is the electronic system in Fig. 1 and adjacent spring thereof and anchor pole schematic diagram;
Fig. 5 is the groove structure schematic diagram on the miniature motor in Fig. 1, tumbler pin and anchor pole;
Fig. 6 is the control unit schematic diagram in Fig. 1.
In figure: 1-dam shoulder, 2-dam body, 3-anchor pole, 301-male joint, 302-female joint, 303-groove, the electronic system of 4-, 401-insulation booth, 402-miniature motor, 403-tumbler pin, 5-spring, 6-spring fixed seat, 7-control unit, 701-micro-chip, 702-power supply, 703-rly., 704-power distribution cabinet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment:
As shown in figs 1 to 6, the testing apparatus main body that the simulation dam body of the present invention bursts gradually comprises dam shoulder 1, dam body 2, anchor pole 3, electronic system 4, spring 5, spring fixed seat 6 and control unit 7.Dam shoulder 1 is positioned at the arranged on left and right sides of dam body 2, and the size of two dam shoulders 1 is identical, in the inside of two dam shoulders 1, is respectively arranged with some horizontal holes from top to bottom, and the spacing in horizontal hole is identical. Dam body 2 is made up of some layers of rectangular parallelepiped, and each layer of rectangular parallelepiped is made up of some the middle cubic blocks being provided with aperture again, all seals with sealing material between adjacent cubic block and between adjacent rectangular parallelepiped. The aperture of cubic block aperture equals the diameter in horizontal hole, and the length and width of each cubic block, height are equal to the spacing in adjacent level hole, runs through aperture by one pair of anchor pole 3 and fix between the cubic block of same layer. Anchor pole 3 is positioned at the inside of dam shoulder 1 and dam body 2, one end of every root anchor pole 3 is cylindrical end, the other end is male joint 301 or female joint 302, the cylindrical end of anchor pole 3 is laid in the horizontal hole of dam shoulder 1, the bar of anchor pole 3 is provided with groove 303 with it, groove 303 is arranged on anchor pole 3 near the side of cylindrical end, and the diameter of anchor pole 3 is slightly less than the diameter in horizontal hole in dam shoulder 1.
As shown in figures 1 and 3, often pair of anchor pole 3 is formed by connecting with the anchor pole 3 of female joint 302 by an anchor pole 3 with male joint 301 and one, and male joint 301 is socket with female joint 302 mode of connection, and female joint 302 is socketed in male joint 301.
As shown in Figure 1, Figure 4 and Figure 5, electronic system 4 is made up of insulation booth 401, miniature motor 402 and tumbler pin 403. It is inner that insulation booth 401 is fixed on dam shoulder 1, is preset with the circular hole of level in the middle part of insulation booth 401, and the diameter of circular hole equals the diameter in horizontal hole in dam shoulder 1. It is inner that miniature motor 402 is arranged on insulation booth 401, and is fixed on bottom insulation booth 401, and miniature motor 402 provides the propulsion source of rotary motion to tumbler pin 403. Tumbler pin 403 is arranged in the rotating shaft of miniature motor 402, and blocks in the groove 303 of anchor pole 3.
As depicted in figs. 1 and 2, it is inner that spring fixed seat 6 is fixed on dam shoulder 1, the cylindrical end that spring fixed seat 6 is fixed in spring 5 one end, the other end is fixed on anchor pole 3.
As shown in figures 1 to 6, control unit 7 is by micro-chip 701, power supply 702, rly. 703 and power distribution cabinet 704 are formed, it is outside that control unit 7 is arranged on dam shoulder 1, micro-chip 701, it is inner that power supply 702 and rly. 703 are arranged on power distribution cabinet 704, the I/O port of micro-chip 701 is connected with the rly. 703 of each layer respectively by dedicated line, rly. 703 is connected with miniature motor 402 by electric wire, the progress of work of micro-chip 701 relay 703 and miniature motor 402, power supply 702 provides required electric energy with rly. 703 and miniature motor 402 to micro-chip 701.
In the present embodiment, the inside of two dam shoulders 1 is respectively arranged with 8 horizontal holes from top to bottom, and dam body 2 is made up of 8 layers of rectangular structure, and each layer of rectangular structure is made up of many middle cubic blocks being provided with aperture again. Anchor pole 3, insulation booth 401, miniature motor 402, tumbler pin 403, spring 5, spring fixed seat 6 are 16. Initially, tumbler pin 403 blocks the groove 303 of anchor pole 3, spring 5 is in stretched state under the common pulling force effect of spring fixed seat 6 and anchor pole 3, and dam body 2 takes on 1 on the dam of arranged on left and right sides, keep steady state under spring fixed seat 6, spring 5, insulation booth 401, miniature motor 402, tumbler pin 403, anchor pole 3 and upstream hydraulic pressure acting in conjunction.
In the present embodiment, 702 powering to micro-chip 701, rly. 703 and miniature motor 402 by switching on power, micro-chip 701 starts to perform internal processes control micro-chip 701 I/O port after being energized exported a high level every 10 seconds.Inner circuit turn-on when rly. 703 receives high level, first the power supply 702 of two miniature motors 402 of the superiors is connected, two miniature motors 402 of the superiors are started working, drive tumbler pin 403 from the groove 303 of the superiors' two anchor poles 3 to inner rotary so that tumbler pin 403 departs from groove 303. The anchor pole 3 of the superiors is separated gradually from male joint 301 with female joint 302 socket place under the pulling force effect of spring 5, and shrinks to the spring fixed seat 6 at two ends and return to dam shoulder 1. In anchor pole 3 withdrawal process, the cubic block of the superiors loses the anchorage effect of anchor pole 3 gradually, starts to cave under the static pressure and self gravitation effect of current.
In the present embodiment, when the 11st second, the I/O port of micro-chip 701 exports the 2nd high level, rly. 703 receive high level again the inner circuit of conducting connect the power supply 702 of two miniature motors 402 of the second layer, two miniature motors 402 of the second layer are started working and are driven tumbler pin 403 to depart from groove 303. The anchor pole 3 of the second layer is separated gradually from male joint 301 with female joint 302 socket place under the pulling force effect of spring 5, and shrinks to the spring fixed seat 6 at two ends and return to dam shoulder 1. In anchor pole 3 withdrawal process, the cubic block of the second layer loses the anchorage effect of anchor pole 3 gradually, starts to cave under the static pressure and self gravitation effect of current. Micro-chip 701 continues periodically to export high level every 10 seconds, and rly. 703 is triggered by layer, and different layers miniature motor 402 works in succession from top to bottom, and tumbler pin 403 departs from the groove 303 of corresponding anchor pole 3 in succession, and anchor pole 3 is recovered to dam shoulder 1 in succession.
In the present embodiment, when the 71st second, the I/O port of micro-chip 701 exports the 8th high level, and rly. 703 receives the power supply 702 that the inner circuit of last high level conducting connects two miniature motors 402 of orlop. When the 80th second, all anchor poles 3 all shrank and return to dam shoulder 1, and the cubic block not caved in continues to be subjected to displacement under flow action, is finally washed from dam body 2, the end of processing that dam body 2 bursts.
Although below by reference to the accompanying drawings the preferred embodiments of the present invention being described; but the invention is not restricted to above-mentioned embodiment; above-mentioned embodiment is only schematic instead of limited; it is noted that, for a person skilled in the art; all employings are equal to the technical scheme replaced and formed, and all drop in the protection domain of requirement of the present invention.
Claims (6)
1. simulate the testing apparatus that dam body bursts gradually, comprise dam shoulder (1), dam body (2), anchor pole (3), electronic system (4), spring (5), spring fixed seat (6), control unit (7), it is characterised in that:
Described dam shoulder (1) is positioned at the arranged on left and right sides of dam body (2), and the cross section on dam shoulder (1) is isosceles trapezoid, takes on (1) inside on dam and is provided with some horizontal holes from top to bottom;
Described anchor pole (3) is positioned at the inside of dam shoulder (1) and dam body (2), anchor pole (3) one end is cylindrical end, the other end is male joint (301) or female joint (302), the cylindrical end of anchor pole (3) is laid in the horizontal hole on dam shoulder (1), and the bar of anchor pole (3) is provided with groove (303) with it;
Described electronic system (4) is made up of insulation booth (401), miniature motor (402) and tumbler pin (403), it is inner that insulation booth (401) is fixed on dam shoulder (1), insulation booth (401) middle part is preset with the circular hole of level, the diameter of circular hole equals the diameter in horizontal hole in dam shoulder (1), miniature motor (402) is fixed on the bottom of insulation booth (401), and tumbler pin (403) is arranged on the rotating shaft of miniature motor (402);
It is inner that described spring fixed seat (6) is fixed on dam shoulder (1), the cylindrical end that spring fixed seat (6) is fixed in spring (5) one end, the other end is fixed on anchor pole (3);
Described control unit (7) is by micro-chip (701), power supply (702), rly. (703) and power distribution cabinet (704) are formed, it is outside that control unit (7) is arranged on dam shoulder (1), micro-chip (701), it is inner that power supply (702) and rly. (703) are arranged on power distribution cabinet (704), the I/O port of micro-chip (701) is connected with the rly. (703) of each layer respectively by dedicated line, rly. (703) is connected with miniature motor (402) by electric wire, the progress of work of micro-chip (701) relay (703) and miniature motor (402), power supply (702) provides required electric energy to micro-chip (701) and rly. (703) and miniature motor (402).
2. the testing apparatus that simulation dam body according to claim 1 bursts gradually, it is characterized in that: described dam body (2) is made up of some layers of rectangular parallelepiped, each layer of rectangular parallelepiped is made up of some the middle cubic blocks being provided with aperture again, by one, anchor pole (3) is run through aperture and fix between the cubic block of same layer; Often pair of anchor pole (3) in dam body (2) is formed by connecting by an anchor pole with male joint (301) (3) and an anchor pole with female joint (302) (3), male joint (301) is socket with female joint (302) mode of connection, and female joint (302) is socketed in male joint (301); All seal with sealing material between all adjacent cubic blocks and between adjacent rectangular parallelepiped.
3. the testing apparatus that simulation dam body according to claim 1 bursts gradually, it is characterized in that: described groove (303) is arranged on the upper side near cylindrical end of anchor pole (3), groove (303) is perpendicular to anchor pole (3), and groove (303) is circular arc.
4. the testing apparatus that simulation dam body according to claim 1 bursts gradually, it is characterized in that: it is inner that described miniature motor (402) is arranged on insulation booth (401), miniature motor (402) provides the propulsion source of rotary motion to tumbler pin (403).
5. the testing apparatus that simulation dam body according to claim 1 bursts gradually, it is characterized in that: the diameter of described anchor pole (3) is slightly less than the diameter in horizontal hole in dam shoulder (1), the horizontal hole in (1) is takeed on the circular hole that anchor pole (3) is preset through insulation booth (401) middle part and dam.
6. the test method of the testing apparatus burst gradually based on the simulation dam body described in the arbitrary item of claim 1 to 5, it is characterised in that comprise the following steps:
1. initial, dam body (2) is on a left side, dam shoulder (1) of right both sides, spring fixed seat (6), spring (5), insulation booth (401), miniature motor (402), tumbler pin (403), steady state is kept under anchor pole (3) and upstream hydraulic pressure acting in conjunction, wherein, tumbler pin (403) blocks the groove (303) of anchor pole (3), spring (5) is in stretched state under the common pulling force effect of spring fixed seat (6) and anchor pole (3), often pair of anchor pole (3) is connected to form the inner skeleton of dam body by male joint (301) and female joint (302) in dam body (2) inside,
When 2. testing, switch on power (702) to micro-chip (701), rly. (703) and miniature motor (402) power supply, micro-chip (701) starts to perform internal processes after being energized, and the I/O port being controlled micro-chip (701) by internal processes exports a high level in interval at regular intervals;
3. the inner circuit turn-on when rly. (703) receives high level, connect two miniature motor (402) power supplys of the superiors, miniature motor (402) is started working, and drives tumbler pin (403) from the groove (303) of anchor pole (3) to inner rotary;
4. after tumbler pin (403) departs from groove (303), the reactive force of anchor pole (3) is disappeared by tumbler pin (403), under the pulling force effect of spring (5), the anchor pole (3) of the superiors is separated with female joint (302) socket place gradually in male joint (301), and shrinks to the spring fixed seat (6) at two ends and return to dam shoulder (1);
5. in anchor pole (3) withdrawal process, the cubic block of the superiors loses the anchorage effect of anchor pole (3) gradually, starts to cave under the static pressure and self gravitation effect of current;
6. micro-chip (701) periodically exports high level, rly. (703) is triggered by layer, different layers miniature motor (402) works in succession from top to bottom, tumbler pin (403) departs from the groove (303) of corresponding anchor pole (3) in succession, and anchor pole (3) is recovered to dam shoulder (1) in succession;
7. in the process in succession regained from top to bottom at anchor pole (3), cubic block caves in gradually under current scour and self gravitation effect, is finally washed from dam body (2), and dam body (2) forms effect of bursting from top to bottom;
According to above-mentioned corresponding steps, the simulation test that dam body bursts gradually can be realized, by reclaiming cubic block and editor's micro-chip (701) internal processes, it is possible to carry out dam break revision test, disclose mechanism of collapsed dam, analyze dam-break water flow hydraulic performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610190961.2A CN105672193B (en) | 2016-03-29 | 2016-03-29 | Experimental rig and method that simulation dam body gradually bursts |
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| CN201610190961.2A CN105672193B (en) | 2016-03-29 | 2016-03-29 | Experimental rig and method that simulation dam body gradually bursts |
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| CN105672193B CN105672193B (en) | 2017-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045088A (en) * | 2019-04-17 | 2019-07-23 | 昆明理工大学 | A kind of soil mechanics characteristic detection device and method for simulating laterite dam bursting |
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| CN104818686A (en) * | 2015-03-20 | 2015-08-05 | 河海大学 | Reservoir dam break simulation experiment device |
| CN205421151U (en) * | 2016-03-29 | 2016-08-03 | 安徽理工大学 | Test device that simulation dam body bursts gradually |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1518433A1 (en) * | 1988-02-08 | 1989-10-30 | Предприятие П/Я Г-4964 | Arrangement for modeling earth foundations of hydraulic structures |
| RU2073076C1 (en) * | 1993-04-26 | 1997-02-10 | Военно-морская академия им. адмирала флота Советского Союза Н.Г.Кузнецова | Model for investigation of hydrodynamic action on obstacle |
| CN102162260A (en) * | 2011-02-18 | 2011-08-24 | 北京科技大学 | Lateral force application device of similar experimental model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110045088A (en) * | 2019-04-17 | 2019-07-23 | 昆明理工大学 | A kind of soil mechanics characteristic detection device and method for simulating laterite dam bursting |
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| CN105672193B (en) | 2017-08-18 |
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