CN104880539A - Device and method for similar simulation of influence, on surrounding rock, of mine water in underground mining - Google Patents
Device and method for similar simulation of influence, on surrounding rock, of mine water in underground mining Download PDFInfo
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- CN104880539A CN104880539A CN201510294857.3A CN201510294857A CN104880539A CN 104880539 A CN104880539 A CN 104880539A CN 201510294857 A CN201510294857 A CN 201510294857A CN 104880539 A CN104880539 A CN 104880539A
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Abstract
The invention discloses a device and a method for similar simulation of influence, on surrounding rock, of mine water in underground mining. The device comprises an operating platform, a hole drilling device, a liquid injecting device and a computer control device, the operating platform is of a cuboid structure, the hole drilling device is composed of a hollow drill bit and a worm transmission device which controls the hollow drill bit, the worm transmission device comprises a worm wheel, a motor and a worm, and the liquid injecting device is composed of a high-pressure water tank, a thick hose, a conversion joint and a thin hose. The device is simple in structure, convenient to operate and high in experimental result accuracy, and working efficiency of experiments and accuracy of experimental results are improved.
Description
Technical field
The present invention relates to the analog simulation apparatus and method that in a kind of underground mining process, country rock affects by mine water, be specifically related to a kind of resemble simulation test apparatus and method that mine water impact causes country rock to weaken and strengthen in underground mining engineering.
Background technology
Resemble simulation test is on a kind of basis being based upon similarity theory and scaling analysis, equivalent material simulating is utilized to dig up mine really geology and engineering specifications, with the model expanded or reduce, study the mechanical motion of corresponding prototype and a kind of test method of other correlation properties.
In the resemble simulation test that underground mining affects by mine water in mining engineering, in order to simulate water-bearing zone, can to the simulation rock stratum fluid injection of specifying.Current problems faced is that analog simulation is as a kind of research method, essential in Mineral Engineering research field, experts and scholars both domestic and external have done a large amount of research work, and traditional resemble simulation test carries out the test of exploitation excavation under focusing on the physico-mechanical properties under certain stationary state of material.Most of resemble simulation test devices of present appearance be in order to simulate fluid at simulation material migration rule in complete and destructive process.These materials are all have fixing physico-mechanical properties, cannot change some parameter in process of the test, if will change the parameter of a certain key stratum position, re-start test after just needing dismounting.
Lack simulation water filling in prior art and soften the resemble simulation test device with grouting and reinforcing.The mode of traditional simulation Confined water extraction is at backplane spring simulated water pressure, the deformation and damage characteristics of research water-resisting floor.Chinese patent CN103183495A is used for tomography similar materials of fluid-wall interaction model test and preparation method thereof, disclose a kind of by adding water in advance and adopting certain reagent as waterproofing agent infiltrative similar materials regulating material and preparation method thereof, this method is owing to being add water in advance and can not add water in process of the test, so can not meet the requirement of some parameter in process of the test while increasing tested number; Chinese patent CN103674658A discloses a kind of preparation method of random crack test model, refer more particularly to analog simulation pressure observation, heterogeneous body rock stratum fluid-wall interaction simulation test, random crack is simulated by pre-buried plastic sheet, the particular requirement of this method by adopting pre-buried simulation material to carry out simulation test, have impact on simulation rock layer mechanics character, reduce the reliability of test findings simultaneously.These methods all cannot change the physical and mechanical parameter of certain one deck position in process of the test, and it is simple, easy to operate and affect by mine water the country rock that causes in the simulate formation mining process that experimental result degree of accuracy is high and weaken and the analog simulation device of strengthening therefore urgently to invent a kind of structure.
Summary of the invention
The present invention aims to provide the device that in the mining of a kind of simulate formation, country rock affects by mine water, and structure is simple, easy to operate and experimental result degree of accuracy is high, improves the work efficiency of test and the precision of test findings.
The present invention realizes by the following technical solutions:
The invention provides the analog simulation device that in a kind of underground mining, country rock affects by mine water, it comprises operating platform, drilling equipment, priming device and Computer Control Unit;
Wherein, described operating platform is tetragonal body structure, and the two opposite side surfaces of tetragonal body is respectively equipped with two blocks of plates protruded, and be provided with guide groove at the intralamellar part protruded, guide groove is perpendicular to surface level;
Described drilling equipment is made up of hollow drill bit and worm gearing; Worm gearing controls hollow drill bit, and described worm gearing comprises worm gear, motor, worm screw; Worm gear and worm screw are interconnected, worm gear drives worm screw to rotate, worm screw is connected with hollow drill bit, the rotation of worm screw drives hollow drill bit horizontal direction elastic simultaneously, worm gear is connected with motor, and motor both sides are provided with restraining plate, and motor is fixing on the operational platform by restraining plate, restraining plate moves along guide groove at vertical direction, is bolted at the test height restraining plate of specifying and guide groove;
Described priming device is made up of high-pressure water tank, thick flexible pipe, X-over, small hose, high-pressure water tank outlet connects thick flexible pipe, the other end coupling adapter of thick flexible pipe, the X-over other end connects some small hoses, the small hose other end is connected with hollow drill bit interface, and hollow drill bit is connected with worm gearing, and described hollow drill bit is fixed on worm-wheel shaft, rotated by worm screw and drive worm gear, thus drive hollow drill bit to rotate by worm gear;
Described Computer Control Unit is grouped into by control core part and enforcement division, and wherein control core part is responsible for sending control signal by PLC, and servo-driver carries out closed-loop control to servomotor, makes reacting fast and accurately its input information; Execution part drags required plant equipment by servomotor and carries out work.
Further, described restraining plate is made up of orthogonal two boards, overall in L-type; Two boards is respectively equipped with bolt hole.
Further, described thick flexible pipe and small hose are rubber tube, and thick flexible pipe and small hose are respectively equipped with valve.
The invention provides a kind of analog simulation method that in underground mining, country rock affects by mine water, adopt above-mentioned analog simulation device, concrete operation step is as follows: (1) is first fixed on ground operating platform, ensures its stability;
(2) moving restraining plate according to testing requirements makes it along guide groove, motor is transferred to height needed for test, with bolt, restraining plate is fixed on this height;
(3) according to testing requirements, in Computer Control Unit, inputting the Distance geometry rotating speed that hollow drill bit advances, to appointment rock stratum fluid injection, must manually regulate the length of hollow drill bit to meet homogeneity, the length adjustment of hollow drill bit to Pass Test requirement, get final product starter gear;
(4) starter gear, carries out the propelling of hollow drill bit, after treating that hole is accomplished fluently, the small hose at testing requirements position is connected on hollow drill bit interface, and the feed water valve of remaining small hose is closed;
(5) then in Computer Control Unit, input fluid injection time and reservoir quantity, open the feed water valve of the feed water valve of thick flexible pipe and the small hose in using, start fluid injection;
(6) after fluid injection, the feed water valve of thickness flexible pipe is closed, ensure that no longer including liquid flows out, and then moves to other non-viewing height this priming device or directly pulls down;
(7) when after the change one deck position physical property realizing test needs, proceed the observation of other testing requirementss, now the function of this device successfully realizes.
In above-mentioned analogy method, the length of described hollow drill bit is according to the thickness of operating platform and need the thickness of softening rock stratum to determine.
This priming device adopts the hollow drill bit that can move freely, and will control fluid injection position, fluid injection time and reservoir quantity accurately, and can simulate water-bearing zone really in conjunction with outside Computer Control Unit.Use hollow drill bit not only not by the impact of simulation rock strength, and it is less on the mechanical property impact of simulation rock stratum, needle-like hollow brill is connected with worm gearing and is arranged on motor, motor freely up and down can be moved along guide groove by restraining plate, when arriving the height required by test, restraining plate and guide groove are fixed by the bolt hole of bolt through guide groove and restraining plate, and needle-like hollow drill bit is moved freely at vertical direction, not by the restriction of simulation rock stratum height.
Simultaneously due to the control by outer computer control device, advance distance and the rotating speed of needle-like hollow drill bit can be controlled accurately.Use the fluid injection of high pressure priming device not by the impact of simulation rock strength, high pressure priming device is connected with outer computer control device simultaneously, can precisely control fluid injection time and reservoir quantity.
Of the present invention
beneficial effect:
(1) the present invention can change the physical and mechanical parameter (namely weakening or strengthen the intensity of country rock) of certain one deck position in process of the test by fluid injection or slip casting, meets corresponding testing requirements, reduces tested number, cost saving and time.
(2) the present invention changes the physical and mechanical parameter of certain one deck position in process of the test, namely require in resemble simulation test that the country rock of certain one deck position is more weak than the intensity of other layer of position or strong, now carry out fluid injection with this device or slip casting changes Surrounding Rock Strength, compared with employing spring simulated water pressure, preliminary infusion, employing simulation material, the present invention simulates specific observation rock stratum more really to be needed to need to change the mechanical property that some physical and mechanical parameter does not change rock stratum simultaneously in test, therefore the degree of accuracy of work efficiency of the present invention and test findings is higher.
Accompanying drawing explanation
Fig. 1 is the stereographic map of this device;
Fig. 2 is the front view of this device;
Fig. 3 is A-A direction view of Fig. 2;
Fig. 4 is the right view of Fig. 2;
Fig. 5 is the connection diagram of hollow drill bit and worm gearing.
In figure: 1-operating platform, 2-high-pressure water tank, 3-valve, the thick flexible pipe of 4-, 5-X-over, 6-small hose, 7-worm gearing, 8-worm gear, 9-motor, 10-restraining plate, 11-Computer Control Unit, 12-guide groove, 13-bolt, 14-pad, 15-bolt hole, 16-hollow drill bit interface, 17-hollow drill bit, 18-worm screw.
Embodiment
Further illustrate the present invention below by embodiment, but be not limited to following examples.
Embodiment 1:
Be described further with regard to the present invention below in conjunction with accompanying drawing:
The analog simulation device that in underground mining, country rock affects by mine water, it comprises operating platform 1, drilling equipment, priming device and Computer Control Unit;
Wherein, described operating platform 1 is tetragonal body structure, and the two opposite side surfaces of tetragonal body is respectively equipped with two blocks of plates protruded, and be provided with guide groove 12 at the intralamellar part protruded, guide groove is perpendicular to surface level;
Described drilling equipment is made up of hollow drill bit 17 and worm gearing 7; Worm gearing 7 controls hollow drill bit 17, and described worm gearing 7 comprises worm gear 8, motor 9, worm screw 18; Worm gear 8 and worm screw 18 are interconnected, by regulating worm gear 8, drive worm screw 18 to rotate, worm screw 18 is connected with hollow drill bit 17, and the rotation of worm screw 18 drives hollow drill bit 17 horizontal direction elastic simultaneously, worm gear 8 is connected with motor 9, motor 9 both sides are provided with restraining plate 10, and motor 9 is fixed on operating platform 1 by restraining plate 10, and restraining plate 10 is provided with two bolts hole, the diameter of bolt hole is less than the diameter of bolt used, passes through to make bolt; Restraining plate 10 moves along guide groove 12 at vertical direction, is bolted at test height restraining plate 10 and the guide groove 12 of specifying;
Described priming device is made up of high-pressure water tank 2, thick flexible pipe 4, X-over 5, small hose 6 and hollow drill bit 17, and thick flexible pipe 4 and small hose 6 are respectively equipped with valve 3; High-pressure water tank 2 exports the thick flexible pipe 4 of connecting band valve, the other end coupling adapter 5 of thick flexible pipe 4, X-over 5 other end connects the small hose 6 of some band valves, and small hose 6 other end is connected with hollow drill bit interface 16, and hollow drill bit 17 is connected with worm gearing 7; Hollow drill bit 17 is fixed on worm-wheel shaft, and hollow drill bit is rotated by worm screw and driven worm gear, thus drives hollow drill bit to rotate;
Described Computer Control Unit 11 is grouped into by control core part and enforcement division, and wherein control core part is responsible for sending control signal by PLC, and servo-driver carries out closed-loop control to servomotor, makes reacting fast and accurately its input information; Execution part drags required plant equipment by servomotor and carries out work.
Further, described restraining plate 10 is made up of orthogonal two boards, overall in L-type; Two boards is respectively equipped with bolt hole.
Further, described thick flexible pipe 4 and small hose 6 are rubber tube.
The principle of work of this priming device is: first operating platform 1 is fixed, make restraining plate, along guide groove, motor 9 is transferred to height needed for test, with bolt, restraining plate is fixed on this height, the distance regulating hollow drill bit 17 according to testing requirements fixes with bolt 13 again, manually regulate the length of hollow drill bit (length of hollow drill bit is according to the thickness of operating platform and need the thickness of softening rock stratum to determine), the length of hollow drill bit to be regulated, after testing requirements length, gets final product starter gear; The Distance geometry rotating speed that drill bit advances is inputted in Computer Control Unit 11, after treating that hole is accomplished fluently, small hose 6 is connected on hollow drill bit interface 16, the feed water valve of remaining small hose is closed, and then on Computer Control Unit, input fluid injection time and reservoir quantity, open the feed water valve of thick flexible pipe 4 and the feed water valve of small hose 6, get final product fluid injection.When after fluid injection complete (now having realized testing the change one deck position physical property needed), first feed water valve that is thick, small hose is closed, ensure that no longer including liquid flows out; Then this priming device can be moved to other non-viewing height or directly pull down, in order to avoid block observation area.
Adopt above-mentioned analog simulation device to carry out the analog simulation method that in underground mining, country rock affects by mine water, concrete operation step is as follows: (1) is first fixed on ground operating platform, ensures its stability;
(2) moving restraining plate according to testing requirements makes it along guide groove, motor is transferred to height needed for test, with bolt, restraining plate is fixed on this height;
(3) according to testing requirements, in Computer Control Unit, inputting the Distance geometry rotating speed that hollow drill bit advances, in order to meet homogeneity to appointment rock stratum fluid injection, manually regulating the length of hollow drill bit, the length adjustment of hollow drill bit to Pass Test requirement, get final product starter gear;
(4) starter gear, carries out the propelling of hollow drill bit, after treating that hole is accomplished fluently, the small hose at testing requirements position is connected on hollow drill bit interface, and the feed water valve of remaining small hose is closed;
(5) then in Computer Control Unit, input fluid injection time and reservoir quantity, open the feed water valve of the feed water valve of thick flexible pipe and the small hose in using, start fluid injection;
(6) after fluid injection, the feed water valve of thickness flexible pipe is closed, ensure that no longer including liquid flows out, and then moves to other non-viewing height this priming device or directly pulls down;
(7) when after the change one deck position physical property realizing test needs, proceed the observation of other testing requirementss, now the function of this device successfully realizes.
Claims (6)
1. the analog simulation device that in underground mining, country rock affects by mine water, comprises operating platform, drilling equipment, priming device and Computer Control Unit; It is characterized in that:
Described operating platform is tetragonal body structure, and tetragonal body inside is simulation coal rock layer, and the two opposite side surfaces of tetragonal body is respectively equipped with two blocks of plates protruded, and be provided with guide groove at the intralamellar part protruded, guide groove is perpendicular to surface level;
Described drilling equipment is made up of hollow drill bit and worm gearing; Worm gearing controls hollow drill bit, and described worm gearing comprises worm gear, motor, worm screw; Worm gear and worm screw are interconnected, worm gear drives worm screw to rotate, worm screw is connected with hollow drill bit, the rotation of worm screw drives hollow drill bit horizontal direction elastic simultaneously, worm gear is connected with motor, and motor both sides are provided with restraining plate, and motor is fixing on the operational platform by restraining plate, restraining plate moves along guide groove at vertical direction, is bolted at the test height restraining plate of specifying and guide groove;
Described priming device is made up of high-pressure water tank, thick flexible pipe, X-over, small hose, high-pressure water tank outlet connects thick flexible pipe, the other end coupling adapter of thick flexible pipe, the X-over other end connects some small hoses, the small hose other end is connected with hollow drill bit interface, and hollow drill bit is connected with worm gearing;
Described Computer Control Unit comprises servo-driver, servomotor, signal controller.
2. the analog simulation device that in underground mining according to claim 1, country rock affects by mine water, is characterized in that: described restraining plate is made up of orthogonal two boards, overall in L-type; Two boards is respectively equipped with bolt hole.
3. the analog simulation device that in underground mining according to claim 1, country rock affects by mine water, is characterized in that: described thick flexible pipe and small hose are rubber tube, and thick flexible pipe and small hose are respectively equipped with valve.
4. the analog simulation device that in underground mining according to claim 1, country rock affects by mine water, is characterized in that: described hollow drill bit is fixed on worm-wheel shaft, is rotated drive worm gear by worm screw, thus worm gear drives hollow drill bit to rotate.
5. the analog simulation method that in underground mining, country rock affects by mine water, adopts the analog simulation device described in any one of claim 1 ~ 4, it is characterized in that: comprise the following steps:
(1) first operating platform is fixed on ground, ensures its stability;
(2) moving restraining plate according to testing requirements makes it along guide groove, motor is transferred to height needed for test, with bolt, restraining plate is fixed on this height;
(3) according to testing requirements, in Computer Control Unit, input the Distance geometry rotating speed that hollow drill bit advances, simultaneously the length adjustment of hollow drill bit to Pass Test requirement;
(4) starter gear, carries out the propelling of hollow drill bit, after treating that hole is accomplished fluently, the small hose at testing requirements position is connected on hollow drill bit interface, and the feed water valve of remaining small hose is closed;
(5) then in Computer Control Unit, input fluid injection time and reservoir quantity, open the feed water valve of the feed water valve of thick flexible pipe and the small hose in using, start fluid injection;
(6) after fluid injection, the feed water valve of thickness flexible pipe is closed, ensure that no longer including liquid flows out, and then moves to other non-viewing height this priming device or directly pulls down;
(7) when after the change one deck position physical property realizing test needs, the observation of other testing requirementss is proceeded.
6. the analog simulation method that in underground mining according to claim 5, country rock affects by mine water, is characterized in that: the length of described hollow drill bit is according to the thickness of operating platform and need the thickness of softening rock stratum to determine.
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| CN201510294857.3A CN104880539B (en) | 2015-06-02 | 2015-06-02 | In underground mining, country rock is subject to the analog simulation device and method that mine water affects |
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| CN201510294857.3A CN104880539B (en) | 2015-06-02 | 2015-06-02 | In underground mining, country rock is subject to the analog simulation device and method that mine water affects |
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| CN108731998A (en) * | 2018-07-04 | 2018-11-02 | 山东大学 | A kind of tomography producing device and operating method for geomechanical model test |
| CN113463641A (en) * | 2021-07-09 | 2021-10-01 | 中电建路桥集团有限公司 | High-pressure grouting device and control method |
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