CN105758616A - Testing simulation apparatus for blast due to top plate collapsing of goaf - Google Patents
Testing simulation apparatus for blast due to top plate collapsing of goaf Download PDFInfo
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- CN105758616A CN105758616A CN201610278084.4A CN201610278084A CN105758616A CN 105758616 A CN105758616 A CN 105758616A CN 201610278084 A CN201610278084 A CN 201610278084A CN 105758616 A CN105758616 A CN 105758616A
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- suspension rod
- top plate
- hollow suspension
- caves
- goaf
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention provides a testing simulation apparatus for a blast due to top plate collapsing of a goaf. The testing simulation apparatus comprises a vehicle body, a cylinder, a top plate, a hoisting device, a horizontal adjusting device, and a height adjusting device. The vehicle body includes a pedestal and a protection box. The cylinder is arranged at the center of the pedestal; and a plurality of air outlets are formed in the bottom. The protection box is arranged at one side of the pedestal; and wheels are arranged at the bottom of the pedestal. The horizontal adjusting device and the height adjusting device are arranged inside the protection box; and the hoisting device matches the top plate, the horizontal adjusting device, and the height adjusting device. According to the invention, the apparatus has advantages of high stability and reliability, good security performance, and convenient usage and is suitable for multi-times repeated simulated testing of collapsing at a goaf; and the testing efficiency and precision can be improved.
Description
Technical field
The invention belongs to the technical field of indoor scaled physical model test, particularly relate to a kind of goaf top plate and cave in the experiment simulator of impact wave.
Background technology
Along with the fast development of mine underground exploitation, increasing goaf becomes underground construction and the significant threat of ground construction of structures, and the harm bringing out impact wave of caving in of research goaf becomes the research emphasis of numerous colleges and universities.
Traditional goaf top plate caves in and brings out the shortcoming that impact wave experiment simulator is primarily present and show themselves in that bottom the steel drum in (1) simulation goaf, cross-section shape of roadway is single, it is impossible to carry out the relative analysis that impact wave is propagated in different section shape tunnel；(2) steel plate that simulation goaf top plate caves in completely manually promotes and falls, and physical demands is big, and steel plate height of drop degree of accuracy is relatively low；(3) traditional experiment installation weight is big, without bottom belt wheel car body, and mobile inconvenience.
Summary of the invention
The technical problem to be solved is in that for above-mentioned Problems existing, the experiment simulator that a kind of goaf top plate caves in impact wave is provided, it is applicable to repeatedly repeat goaf cave in simulation test, improve test efficiency and precision, save muscle power, can simulate differing heights, different-thickness, different temperatures goaf top plate cave in the impact wave brought out capacity loss in different section shape tunnel and propagation law.
nullThis invention address that above-mentioned technical problem be the technical scheme is that, a kind of goaf top plate caves in the experiment simulator of impact wave，It is characterized in that，Including car body、Cylinder、Top board、Boom hoisting、Level(l)ing device、Arrangement for adjusting height，Described car body includes base and guard box，Described cylinder is located at described base center，Bottom of cylinder has several air outlet，Described guard box is located at base side，Base bottom is provided with wheel，Described level(l)ing device and arrangement for adjusting height are all located at inside guard box，Described boom hoisting includes magnechuck、Cable、Hook、Steel wire rope、Pulley、Hollow suspension rod，Described hook and described magnechuck top center hook，Magnechuck and described top board center magnetic-adsorption，Described hollow suspension rod is slidably connected with protection casing，The termination at the head and the tail two ends in hollow suspension rod installed by described pulley，The free end of described steel wire rope is connected with hook，The fixing end of steel wire rope is walked around the pulley at two ends respectively and is connected with arrangement for adjusting height through hollow suspension rod，Hollow suspension rod and level(l)ing device phase configuration，Described cable one end is connected with magnetic suction disc，The other end is connected through hollow suspension rod with power supply，The diameter of top board is identical with the internal diameter of cylinder.
By such scheme; described hollow suspension rod is the cylindrical shaft structure that bottom is provided with the hollow of plane vertically; the base plane of hollow suspension rod is provided with tooth bar, and described guard box and hollow suspension rod connecting place are provided with sleeve pipe, and described internal surface of sleeve pipe and the contact surface of hollow suspension rod are embedded with number row's ball.
By such scheme; described level(l)ing device includes manual level(l)ing device and electronic level(l)ing device; described manual level(l)ing device includes horizontal adjustment knob, power transmission shaft and the first gear; described horizontal adjustment knob is connected with power transmission shaft one end; described travelling gear is sheathed on the power transmission shaft other end and is meshed with the tooth bar of described hollow suspension rod, and power transmission shaft is connected by bearing with described guard box；Described electronic level(l)ing device includes horizontal adjustment motor and the second gear, and the tooth bar of output shaft termination and hollow suspension rod that described second geared sleeve is located at described horizontal adjustment motor is meshed.
By such scheme, described arrangement for adjusting height includes altitude mixture control motor and roll, and the output shaft of described altitude mixture control motor is connected with one end of described roll, and the fixing end of described steel wire rope is connected with roll.
By such scheme, also including hand crank, described hand crank is connected by bearing with described guard box, and the termination, inner side of hand crank is connected with the other end of roll.
By such scheme, described cylinder inner wall is provided with graduation mark.
By such scheme, the cross sectional shape of described several air outlets is different, can respectively square, rectangle, shape trapezoidal, irregular, stalk arch, circle, ellipse.
By such scheme, outside described several air outlets, it is equipped with air door.
By such scheme, described cylinder inner wall is embedded with temperature and humidity controller.
The invention has the beneficial effects as follows: 1, the experiment simulator that a kind of goaf top plate caves in impact wave is provided, can simulate differing heights, different-thickness, different temperatures goaf top plate cave in the impact wave brought out capacity loss in different section shape tunnel and propagation law；2, top plate promotes and is dropped through magnechuck energising and power-off completes, and saves labour force, can manually or electrically the horizontal level of hollow suspension rod be adjusted, it is possible to manually or Electronic control top board height of drop, and security performance is high, reliable and stable；3, bottom of cylinder design has the air outlet of multiple different cross section shape, it is possible to carry out the relative analysis that impact wave is propagated in different cross section shape tunnel.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the axonometric drawing of one embodiment of the invention.
Wherein: 1. base, 2. guard box, 3. air outlet, 4. wheel, 5. magnechuck, 6. link up with, 7. steel wire rope, 8. pulley, 9. hollow suspension rod, 10. top board, 11. tooth bars, 12. sleeve pipes, 13. horizontal adjustment knob, 14. hand cranks, 15. cylinders.
Detailed description of the invention
For being more fully understood that the present invention, below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1-2, a kind of goaf top plate caves in the experiment simulator of impact wave, including car body, cylinder 15, top board 10, boom hoisting, level(l)ing device, arrangement for adjusting height, car body includes base 1 and guard box 2, cylinder is located at base center, several air outlet 3 is had bottom it, the cross sectional shape of several air outlets is different, can be respectively square, rectangle, trapezoidal, irregular shape, stalk arch, circular, oval, for the Roadway model connecting different section shape, the relative analysis that impact wave is propagated can be carried out in different section shape tunnel, air door it is equipped with outside air outlet, air door can be closed after stopping test, guard box is located at base side, base bottom is provided with wheel 4, level(l)ing device and arrangement for adjusting height are all located at inside guard box.
nullBoom hoisting includes magnechuck 5、Cable、Hook 6、Steel wire rope 7、Pulley 8、Hollow suspension rod 9，Hook and magnechuck top center hook，Magnechuck and top board center magnetic-adsorption，Hollow suspension rod is slidably connected with protection casing，The termination at the head and the tail two ends in hollow suspension rod installed by pulley，The free end of steel wire rope is connected with hook，The fixing end of steel wire rope is walked around the pulley at two ends respectively and is connected with arrangement for adjusting height through hollow suspension rod，Hollow suspension rod and level(l)ing device phase configuration，Cable one end is connected with magnetic suction disc，The other end is connected through hollow suspension rod with power supply，The diameter of top board is identical with the internal diameter of cylinder，Seal is good，The top board of different-thickness can be simulated the top board of Different Weight and be caved in，Magnechuck after energising holds top board，After power-off，Magnechuck magnetic force disappears，Top board falls along rustless steel cylinder.
Hollow suspension rod is the cylindrical shaft structure that bottom is provided with the hollow of plane vertically; the base plane of hollow suspension rod is provided with tooth bar 11; guard box and hollow suspension rod connecting place are provided with sleeve pipe 12; internal surface of sleeve pipe and the contact surface of hollow suspension rod are embedded with number row's ball; when hollow suspension rod moves horizontally, reduce frictional resistance.
Level(l)ing device includes manual level(l)ing device and electronic level(l)ing device; manual level(l)ing device includes horizontal adjustment knob 13, power transmission shaft and the first gear; horizontal adjustment knob is connected with power transmission shaft one end; travelling gear is sheathed on the power transmission shaft other end and is meshed with the tooth bar of hollow suspension rod; power transmission shaft is connected by bearing with guard box; manual rotation horizontal adjustment knob can drive the first pinion rotation, and then drives hollow suspension rod to move horizontally, and adjusts the position of top board；Electronic level(l)ing device includes horizontal adjustment motor and the second gear, the tooth bar of output shaft termination and hollow suspension rod that the second geared sleeve is located at horizontal adjustment motor is meshed, start horizontal adjustment motor driving the second pinion rotation, and then drive hollow suspension rod to move horizontally, adjust the position of top board.
Arrangement for adjusting height includes altitude mixture control motor and roll; the output shaft of altitude mixture control motor is connected with one end of roll; the fixing end of steel wire rope is connected with roll; start altitude mixture control motor driving roll to rotate; and then steel wire rope is carried out folding and unfolding; change the height of top board; also include hand crank 14; hand crank is connected by bearing with guard box; its termination, inner side is connected with the other end of roll; can hand rotation hand crank, drive roll rotate, it is achieved the altitude mixture control of top board.
The inwall of cylinder is provided with graduation mark, operator can check the height value of top board at any time, operation arrangement for adjusting height makes top board arrive desired height position, by magnechuck power-off, magnetic force disappears, top board starts to fall along stainless cylinder, stop until contacting cylinder bottom surface, the triggered timer whole fall time of record top board can be adopted, cylinder inner wall is embedded with temperature and humidity controller, cylinder interior humiture can be controlled, obtain characteristic curve between slump time and goaf humiture, realize differing heights, different-thickness, the goaf top plate of different temperatures caves in the simulation of the impact wave brought out capacity loss in different section shape tunnel and propagation law.
Claims (9)
- null1. a goaf top plate caves in the experiment simulator of impact wave，It is characterized in that，Including car body、Cylinder、Top board、Boom hoisting、Level(l)ing device、Arrangement for adjusting height，Described car body includes base and guard box，Described cylinder is located at described base center，Bottom of cylinder has several air outlet，Described guard box is located at base side，Base bottom is provided with wheel，Described level(l)ing device and arrangement for adjusting height are all located at inside guard box，Described boom hoisting includes magnechuck、Cable、Hook、Steel wire rope、Pulley、Hollow suspension rod，Described hook and described magnechuck top center hook，Magnechuck and described top board center magnetic-adsorption，Described hollow suspension rod is slidably connected with protection casing，The termination at the head and the tail two ends in hollow suspension rod installed by described pulley，The free end of described steel wire rope is connected with hook，The fixing end of steel wire rope is walked around the pulley at two ends respectively and is connected with arrangement for adjusting height through hollow suspension rod，Hollow suspension rod and level(l)ing device phase configuration，Described cable one end is connected with magnetic suction disc，The other end is connected through hollow suspension rod with power supply，The diameter of top board is identical with the internal diameter of cylinder.
- 2. a kind of goaf top plate according to the claims 1 caves in the experiment simulator of impact wave; it is characterized in that; described hollow suspension rod is the cylindrical shaft structure that bottom is provided with the hollow of plane vertically; the base plane of hollow suspension rod is provided with tooth bar; described guard box and hollow suspension rod connecting place are provided with sleeve pipe, and described internal surface of sleeve pipe and the contact surface of hollow suspension rod are embedded with number row's ball.
- 3. a kind of goaf top plate according to the claims 2 caves in the experiment simulator of impact wave; it is characterized in that; described level(l)ing device includes manual level(l)ing device and electronic level(l)ing device; described manual level(l)ing device includes horizontal adjustment knob, power transmission shaft and the first gear; described horizontal adjustment knob is connected with power transmission shaft one end; described travelling gear is sheathed on the power transmission shaft other end and is meshed with the tooth bar of described hollow suspension rod, and power transmission shaft is connected by bearing with described guard box；Described electronic level(l)ing device includes horizontal adjustment motor and the second gear, and the tooth bar of output shaft termination and hollow suspension rod that described second geared sleeve is located at described horizontal adjustment motor is meshed.
- 4. a kind of goaf top plate according to claim 1 caves in the experiment simulator of impact wave, it is characterized in that, described arrangement for adjusting height includes altitude mixture control motor and roll, the output shaft of described altitude mixture control motor is connected with one end of described roll, and the fixing end of described steel wire rope is connected with roll.
- 5. a kind of goaf top plate according to claim 4 caves in the experiment simulator of impact wave; it is characterized in that; also including hand crank, described hand crank is connected by bearing with described guard box, and the termination, inner side of hand crank is connected with the other end of roll.
- 6. a kind of goaf top plate according to claim 1 caves in the experiment simulator of impact wave, it is characterised in that described cylinder inner wall is provided with graduation mark.
- 7. a kind of goaf top plate according to claim 1 caves in the experiment simulator of impact wave, it is characterized in that, the cross sectional shape of described several air outlet is different, can respectively square, rectangle, shape trapezoidal, irregular, stalk arch, circle, ellipse.
- 8. a kind of goaf top plate according to claim 7 caves in the experiment simulator of impact wave, it is characterised in that be equipped with air door outside described several air outlets.
- 9. a kind of goaf top plate according to claim 1 caves in the experiment simulator of impact wave, it is characterised in that described cylinder inner wall is embedded with temperature and humidity controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278084.4A CN105758616B (en) | 2016-04-29 | 2016-04-29 | A kind of goaf top plate caves in the experiment simulator of impact wave |
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| CN201610278084.4A CN105758616B (en) | 2016-04-29 | 2016-04-29 | A kind of goaf top plate caves in the experiment simulator of impact wave |
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| CN105758616A true CN105758616A (en) | 2016-07-13 |
| CN105758616B CN105758616B (en) | 2018-08-07 |
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| CN201610278084.4A Expired - Fee Related CN105758616B (en) | 2016-04-29 | 2016-04-29 | A kind of goaf top plate caves in the experiment simulator of impact wave |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290016A (en) * | 2016-10-25 | 2017-01-04 | 安徽理工大学 | A kind of underground air impact disaster assay device |
| CN107860546A (en) * | 2017-12-21 | 2018-03-30 | 东北大学 | A kind of impact wave Experimental mimic system |
| CN110411840A (en) * | 2019-08-29 | 2019-11-05 | 安徽理工大学 | Simulate experimental rig and method that the earth's surface soil body in goaf generates tension crack |
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| SU737347A1 (en) * | 1977-12-30 | 1980-05-30 | Проектно-технологическо-конструкторское бюро Главного управления пути МПС | Crane for loading and unloading track elements |
| CN2032608U (en) * | 1987-12-08 | 1989-02-15 | 安徽省建筑科学研究所 | Hoisting and laying machine for laying blocks |
| JPH11246174A (en) * | 1998-03-02 | 1999-09-14 | Kenji Kameyama | Crane |
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| US20150014266A1 (en) * | 2013-07-09 | 2015-01-15 | Liebherr-Werk Ehingen Gmbh | Revolving tower crane |
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| CN2032608U (en) * | 1987-12-08 | 1989-02-15 | 安徽省建筑科学研究所 | Hoisting and laying machine for laying blocks |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290016A (en) * | 2016-10-25 | 2017-01-04 | 安徽理工大学 | A kind of underground air impact disaster assay device |
| CN106290016B (en) * | 2016-10-25 | 2018-11-20 | 安徽理工大学 | A kind of underground air impact disaster experimental rig |
| CN107860546A (en) * | 2017-12-21 | 2018-03-30 | 东北大学 | A kind of impact wave Experimental mimic system |
| CN110411840A (en) * | 2019-08-29 | 2019-11-05 | 安徽理工大学 | Simulate experimental rig and method that the earth's surface soil body in goaf generates tension crack |
| CN110411840B (en) * | 2019-08-29 | 2023-12-26 | 安徽理工大学 | Test device and method for simulating tension fracture generated by goaf earth surface soil body |
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| CN105758616B (en) | 2018-08-07 |
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