CN105067221B - A kind of breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means and test method thereof - Google Patents
A kind of breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means and test method thereof Download PDFInfo
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- CN105067221B CN105067221B CN201510382827.8A CN201510382827A CN105067221B CN 105067221 B CN105067221 B CN 105067221B CN 201510382827 A CN201510382827 A CN 201510382827A CN 105067221 B CN105067221 B CN 105067221B
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- 239000011435 rock Substances 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 22
- 238000010998 test method Methods 0.000 title claims abstract description 7
- 238000007569 slipcasting Methods 0.000 claims abstract description 83
- 238000012360 testing method Methods 0.000 claims abstract description 83
- 230000003204 osmotic effect Effects 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000011160 research Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 9
- 239000005336 safety glass Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of breaking surrounding rock grouting and reinforcing and dynamically respond to analogue means and test method thereof, device is by test piece mould, slip casting container, high pressure oxygen pressurizer, the major part compositions such as sensing device and dynamic monitoring control system, the different-grain diameter rock grain grinding by use combines the breaking surrounding rock in simulate formation engineering, by dynamic monitoring control system, grouting pressure is carried out to real-time inspection and control so that grouting pressure keeps stable, by osmotic pressure sensor and flow sensor, rock-mass seepage pressure and flow are measured, for later stage research provides Data support.
Description
Technical field
The invention belongs to safe practice field in underground engineering, particularly in underground engineering, the each factor of grouting program is enclosed fragmentationThe development test of rock grouting consolidation effect.
Background technology
The fragmentation of the chamber surrounding country rock causing due to Underground Engineering Excavation, and underground engineering the natural country rock of process brokenBroken band, can cause great threat to the safety of underground engineering. Not only breaking surrounding rock may come off and hurt staff, andCountry rock self intensity is as the important component part that maintains underground engineering stability, and the undercapacity that rock crusher causes, causesUnderground engineering distortion is excessive, supporting construction lost efficacy, and engineering safety is produced to major hidden danger. Be proven, by undergroundEngineering breaking surrounding rock is carried out grouting and reinforcing, to changing Surrounding Rock Strength, performance country rock self bearing capacity, ensureing the safe tool of underground chamberThere is good effect, realized the object that increases Surrounding Rock Strength.
Compared with putting into practice with fast-developing grouting and reinforcing, grouting and reinforcing theoretical developments is slow, and the utmost point is necessary to design and produce one and grindsStudy carefully the laboratory testing rig that affects slip casting effect correlative factor. There is following problem in experimental rig of the prior art:
(1) sample dimensions requirement is larger, can not better simulate rock mass more broken or smashed to pieces;
(2) existing apparatus is wayward to pressure, and test error is larger;
(3) existing apparatus to slurry infiltration during to rock mass the variation of pressure can not measure.
Also do not announce at present a kind of in underground engineering, have better simulation compared with breaking surrounding rock and grouting pressure is accurately controlled andThe experimental rig that fragmented rock body slip casting osmotic pressure is monitored.
Summary of the invention
For solving prior art above shortcomings, the invention provides a kind of breaking surrounding rock grouting and reinforcing and dynamically respond to simulation dressPut and test method.
For achieving the above object, the present invention adopts following technical scheme:
A kind of breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means, comprises slip casting container, if described slip casting internal tank is provided withDry in order to hold test mould different-grain diameter rock grain and that simulate slip casting process, the top of described test mould and bottomBe fixed on described slip casting internal tank by upper gear support and lower block support respectively; At described slip casting internal tank, described upper gear support withUpper formation is in order to the airtight epicoele of filling and grouting material, and following formation oozed in order to hold from described test mould in described lower block supportThe cavity of resorption of the slurries that go out; The top of described test mould and bottom are provided with the injected hole of the described epicoele of some connections and described cavity of resorption;The top of described slip casting container is provided with the pressue device in order to grouting pressure to be provided to described epicoele; Described pressue device and described inIn test mould, be provided with sensing device; Described pressue device is connected with dynamic monitoring control system with described sensing device; DescribedDynamic monitoring control system, by described sensing device, grouting pressure is carried out to real-time inspection and control so that grouting pressure keeps steadyFixed, the information of obtaining by described sensing device provides Data support for later stage research.
Described test mould is cylinder, and material is safety glass; Described mold by two semicylinders by upper cover and underCover assembled; The contact-making surface of described upper cover and lower cover and mold is inclined-plane; Described upper cover and lower cover outside are provided with for sideJust the draw-in groove that spanner is puted forth effort; Described upper cover and under cover the injected hole that is equipped with diameter 2-5mm; Under described, be covered with sealing ring.
Described slip casting container is drum-shaped, and material is safety glass, is provided with dismountable top cover and bottom; Described slip casting containerEpicoele for hold Different Water-Cement Ratio injecting paste material slurries and different grouting pressures is set, in described test piece mouldInject slurries.
On described, keep off in support and the support of described lower block, be provided with the fluting corresponding with described test piece mould, described test mould is placed inIn described fluting, and airtight by sealing ring; In described fluting, be provided with the opening that all described injected holes are exposed.
The side wall lower ends of described cavity of resorption is provided with stop valve; Described pressue device is high pressure oxygen pressurizer; When slip casting from the bottom upTime, in described epicoele, be provided with the piston of good seal.
Described sensing device comprises pressure sensor, osmotic pressure sensor and flow sensor; Described pressure sensor is laid in instituteState pressue device appendix end, described osmotic pressure sensor and described flow sensor are laid in the inside of described test piece mould.
Described dynamic monitoring control system comprises data handling system and movement device; Described data handling system is used for describedThe data analysis of sensing device transmission and the drafting of data image; Described movement device comprises command receiver, gas flowAmount adjuster, pressurizing valve and relief valve, described command receiver receives the action command that described data handling system transmits, logicalCross described gas flow adjuster adjust the switch of spool in described pressurizing valve and relief valve change pressurization or pressure release state,By the sectional area of the control break gas passage to spool, control and boost or the speed of step-down.
Described data handling system receives the grouting pressure that pressure sensor transmits, and contrasts backward moving with preset valueSend action command as device, regulate grouting pressure size; Described data handling system receives osmotic pressure sensor and flow passesOsmotic pressure in the test specimen that sensor transmits and seepage discharge, and contrast with preset value, decide slip casting process to beNo end.
Breaking surrounding rock grouting and reinforcing is dynamically responded to a test method for analogue means, comprises the following steps:
A. pack test material into test piece mould, and be fixed between two gear supports, slip casting container is filled to slurries sealing;
B. the defeated pressure pipe of high pressure oxygen pressurizer is connected with the pressurization hole of slip casting container upper cover, slip casting container is pressurizeed;
C. pressure data in pressure sensor Real-time Collection pressure process, and fed back to data handling system, data processingSystem receives the grouting pressure data that transmit of pressure sensor, and contrasts backward movement device with preset value and send movingDo instruction, regulate grouting pressure size;
D. the test specimen rock-mass seepage pressure and the osmotic flow that transmit when osmotic pressure sensor and the flow sensor of data handling system receptionAmount reaches the standard of setting, and slip casting process finishes.
Wherein, in steps A, in the time of slip casting from top to bottom, first epicoele is filled to slurries, then pressurization, cavity of resorption is as dischargeAir and the container that oozes lower slurries; In the time of slip casting from the bottom up, first epicoele is filled to slurries, and piston is installed, installUpper cover tighten the screws, then container is turned over to turnback, then to epicoele pressurization, pressure-air promotes piston to piston topLiquid pressing.
Beneficial effect of the present invention is:
The combination of the different-grain diameter rock grain that utilization of the present invention grinds carrys out the breaking surrounding rock of simulate formation engineering, has good similarProperty, can realize the authentic simulation to underground engineering breaking surrounding rock. Be provided with multiple test moulds at slip casting internal tank simultaneously, canTo simulate the slip casting situation of different degree of crushing country rocks simultaneously, improve test efficiency.
The top of test mould and bottom are provided with the injected hole of the described epicoele of some connections and described cavity of resorption, the epicoele of slip casting containerCan, for holding the injecting paste material slurries of Different Water-Cement Ratio and different pressures being set, in described test piece mould, inject slurries,Thereby to realize the simulation process of slip casting in breaking surrounding rock.
By dynamic monitoring control system, grouting pressure is carried out to real-time inspection and control, so that grouting pressure keeps stable, improvedThe accuracy of slip casting process. By osmotic pressure sensor and flow sensor, test fragmented rock body is carried out to slip casting procedure parameter mensuration,Having overcome existing apparatus cannot carry out test problems to rock mass internal penetration pressure, for probing into of later stage slip casting principle provides dataSupport.
Described test piece mould material is safety glass, is beneficial to the visual observation to slurries diffusion; Mold is by two semicirclesCylinder is assembled by upper cover and lower cover, when test specimen solidifies maintenance can taking-up test specimen for convenience detach after completing; Upper and lower coversWith mold contact-making surface be inclined-plane, and upper and lower covers outside is provided with the draw-in groove of putting forth effort for convenient wrench, after having solved slurries and solidifyingUpper and lower covers is difficult for a difficult problem of opening. Upper and lower covers all has the injected hole of diameter 2-5mm, and the initial set of band slurries is taken out after test specimen, passes throughTaking off upper and lower covers can clean out residual slurries in hole. Under be covered with sealing ring, spillage can prevent slip casting time.
Slip casting container is provided with drum-shaped, convenient when cleaning. Use safety glass, intensity is high and can carry out visual sightExamine. Top cover and bottom are detachable, the operation of convenient test.
In gear support, fluting is set, can makes the placement of test piece mould more stable, test piece mould can be put into groove, and can have closeSeal is airtight, for slip casing by pressure provides possibility.
The side wall lower ends of described cavity of resorption is provided with a stop valve, during for injection slurry initial set, and the discharge of unnecessary slurries. Described heightPress oxygen pressing device to provide and add pressure power by release high pressure oxygen, compare hydraulic pressurization mode, have and boost rapidly, testThe advantage that efficiency is high. In the time that test material particle is thinner, slip casting difficulty from top to bottom, needs slip casting from the bottom up; Now needUse piston, realize the operation of slip casting from the bottom up. The concrete good sealing of described piston, when from epicoele slip casting notPiston is installed, during from cavity of resorption slip casting, piston need be installed.
Described sensing device comprises pressure sensor, osmotic pressure sensor and flow sensor, and three belongs to wireless senser,Pressure sensor is laid in the end of high pressure oxygen pressurizer oxygen cathete, for monitoring grouting pressure, and osmotic pressure sensor and flow velocitySensor is laid in test piece mould, for the standard and later stage the grinding fragmented rock body reinforcement mechanism that judge that grouting test stopsStudy carefully.
Brief description of the drawings
Fig. 1 is that breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means structure chart;
Fig. 2 a is that test piece mould sidewall is analysed and observe;
Fig. 2 b is test piece mould top view;
Fig. 3 a is test piece mould upper cover cutaway view;
Fig. 3 b is test piece mould upper cover top view;
Fig. 4 a is that test piece mould lower cover is analysed and observe;
Fig. 4 b is test piece mould lower cover and top view;
Fig. 5 a is analysing and observe of slip casting container upper cover;
Fig. 5 b is slip casting container upper cover top view;
Fig. 6 is slip casting pan straddle side view;
Fig. 7 is pressure control logic block diagram.
In figure: 1. slip casting container upper cover, 2. piston, 3. epicoele, 4. on gear support, 5. slip casting container side wall, 6. test piece mould,7. osmotic pressure sensor, 8. flow sensor, 9. lower block support, 10. cavity of resorption, 11. slip casting container lower covers, 12. cavity of resorption stop valves,13. pressure sensors, 14. slip casting pan straddles, 15. movement devices, 16. data handling systems, 17. test piece mould sidewalls,18. test piece mould upper covers, 19. test piece mould lower covers, 20. sealing rings, 21. injected holes, 22. inclined-planes, 23. draw-in grooves.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
A kind of breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means, and it is by test piece mould 6, slip casting container 24, high pressure oxygenThe major part compositions such as pressurizer, sensing device and dynamic monitoring control system.
Described test piece mould 6 materials are safety glass, are beneficial to the visual observation to slurries diffusion, test piece mould sidewall 17The two halves that are divided into by a drum form, when test specimen solidifies maintenance can taking-up test specimen for convenience detach after complete, on test piece mouldLid 18 and test piece mould lower cover 19 are inclined-plane 22 with mould body contact-making surface, and upper and lower covers outside is provided with and puts forth effort for convenient wrenchDraw-in groove 23, has solved slurries and has solidified the difficult problem that rear upper and lower covers is difficult for unlatching, and upper and lower covers all has the injected hole 21 of diameter 2-5mm,Take out after test specimen until slurries initial set, clean out residual slurries in hole by rotating upper and lower covers, test piece mould lower cover 10 is provided with closeSeal 20, spillage can prevent slip casting time.
Described slip casting container 24 is for holding the injecting paste material slurries of Different Water-Cement Ratio and different pressure being set, to described examinationIn part mould 6, inject slurries.
Described slip casting container 24 is shaped as drum type, and the material of slip casting container side wall 5 is safety glass, and wall thickness is greater than 25mm,Slip casting container upper cover 1 and slip casting container lower cover 11 are all detachable, and have sealing ring sealing, and screw is fixed, and screw quantity is greater than9, upper and lower covers wall thickness is greater than 25mm, is divided into slip casting container epicoele 3 and slip casting container cavity of resorption 10, and upper and lower cavity is used gear support 4Separate 9 test piece moulds 6 of two gear support intermediate arrangement with lower block support 9.
Both slip casting from top to bottom when described slip casting container 24 is tested, slip casting from the bottom up again, has solved when test materialWhen grain is thinner, the problem of slip casting difficulty from top to bottom.
Described upper gear support 4 and lower block support 9 are established equally in the injected hole position of test piece mould upper cover 18 and test piece mould lower cover 19Put corresponding linked hole, link up upper and lower cavity, when in epicoele slip casting, slurry infiltration is crossed rock mass, flows into cavity of resorption, notes at cavity of resorptionWhen slurry in like manner.
The thickness of described upper and lower two gear supports is greater than 30mm, has the fluting of the described test piece mould of multiple correspondences, groove depth in gear support10mm-20mm, has opening in groove, mould can be put into groove also can be airtight by sealing ring, and groove split shed enough greatly can be under mouldThe grouting port of lid all comprises, and described slip casting container upper and lower cavity is sealing completely except the opening of gear support.
The right side wall of described cavity of resorption is provided with cavity of resorption stop valve 12, for when the grouting serous fluid initial set, and the discharge of unnecessary slurries.
Described breaking surrounding rock grouting and reinforcing is dynamically responded to analogue means, is placed on slip casting pan straddle 14. When from epicoele 3 notesWhen slurry, first epicoele 3 is filled to slurries, then pressurization, cavity of resorption 10 is as discharging air and the container that oozes lower slurries. WhenWhen slip casting from the bottom up, first epicoele 3 is filled to slurries, and piston 2 is installed, slip casting container upper cover 1 tighten the screws are installed,Again container is turned over to turnback, be placed on slip casting pan straddle 14, then pressurize from epicoele 3, pressure-air promotes piston and givesPiston 2 upper liquid pressurizations.
Described piston 2, is characterized in that the concrete good sealing of piston, when from epicoele 3 slip casting, piston is not installed, from cavity of resorptionWhen slip casting, piston need be installed.
Described high pressure oxygen pressurizer is provided and is added pressure power by release high pressure oxygen, compares hydraulic pressurization mode, has and boostsThe high advantage of test efficiency rapidly.
Described sensing device comprises pressure sensor 13, osmotic pressure sensor 7 and flow sensor 8, and three belongs to wireless biographySensor.
Described pressure sensor 13 is laid in the end of high pressure oxygen pressurizer oxygen cathete, and for monitoring grouting pressure, osmotic pressure passesSensor 7 and flow sensor 8 are laid in test piece mould 6, and the transfer of data of its mensuration is also saved in dynamic monitoring control systemSystem, for the standard and the research of later stage to fragmented rock body reinforcement mechanism that judge that grouting test stops.
Described dynamic monitoring control system comprises data handling system 16, movement device 15 two parts.
Described data handling system, for the data analysis to sensing device transmission and the drafting of data image.
Described data handling system receives the grouting pressure that pressure sensor transmits, and contrasts backward moving with preset valueSend action command as device, regulate grouting pressure size.
Osmotic pressure and osmotic flow in the test specimen that described data handling system reception osmotic pressure sensor and flow sensor transmitAmount, and contrast with preset value, decide slip casting process whether to finish.
Described movement device comprises command receiver, gas flow adjuster, pressurizing valve and relief valve, and command receiver receivesThe action command that data handling system transmits, the switch of adjusting spool by gas flow adjuster changes pressurization or pressure releaseState, boosts or the speed of step-down by spool being changed to the sectional area of gas passage, controlling.
Taking from epicoele slip casting as example, its process is described as follows:
(1) combination particle diameter testing program being required packs in 6 test piece moulds, and by 7 osmotic pressure sensor and flow sensorsFix wherein;
(2) each 6 test piece moulds are put into slip casting container, and each test piece mould is stuck in the fluting of 9 lower block supports, by 4Upper gear support covers, and guarantees that on 4, gear struts groove and 6 test piece moulds clamping;
(3) 3 epicoeles are filled to the injecting paste material that testing program requires, covered the upper cover of 1 slip casting container, and tighten the screws envelopeClose slip casting container;
(4) the defeated pressure pipe of high pressure oxygen pressurizer is connected with the pressurization hole of slip casting container upper cover 1, starts and add and compress switch, andPressure according to experimental program defined pressurizes;
Pressure data in (5) 13 pressure sensor Real-time Collection pressure processes, and fed back to data handling system, 16Data handling system receives the grouting pressure data that 13 pressure sensors transmit, and contrasts backward 15 with preset valueMovement device sends action command, regulates grouting pressure size;
(6) when 16 data handling systems receive the test specimen rock-mass seepage pressure that 7 osmotic pressure sensors and 8 flow sensors transmitReach the standard of setting with seepage discharge, slip casting process finishes;
(7) in the time that slurries reach initial set, 12 stop valves of cavity of resorption wall are opened, discharge unnecessary slurries;
(8) take out 6 test piece moulds and after the maintenance regular hour, open mould, taking out test specimen, making rock mechanics experimentTest specimen also detects.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned, not to protection domain of the present inventionRestriction, one of ordinary skill in the art should be understood that those skilled in the art do not need on the basis of technical scheme of the present inventionPay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. breaking surrounding rock grouting and reinforcing is dynamically responded to an analogue means, it is characterized in that: comprise slip casting container, described slip castingInternal tank is provided with several in order to hold test mould different-grain diameter rock grain and that simulate slip casting process, described test mouldThe top of tool and bottom are fixed on described slip casting internal tank by upper gear support and lower block support respectively; At described slip casting internal tank,The above airtight epicoele forming in order to filling and grouting material of described upper gear support, the following formation in order to hold from institute of described lower block supportState the cavity of resorption of the slurries that test mould oozes out; The top of described test mould and bottom be provided with the described epicoele of some connections and described inThe injected hole of cavity of resorption; The top of described slip casting container is provided with the pressue device in order to grouting pressure to be provided to described epicoele; DescribedIn pressue device and described test mould, be provided with sensing device; Described pressue device and described sensing device and dynamic monitoring controlSystem connects; Described dynamic monitoring control system, by described sensing device, grouting pressure is carried out to real-time inspection and control so that noteSlurry pressure keeps stable, and the information of obtaining by described sensing device provides Data support for later stage research.
2. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to analogue means, it is characterized in that: instituteStating test mould is cylinder, and material is safety glass; Test mould sidewall is spelled by upper cover and lower cover by two semicylindersDress forms; Described upper cover and lower cover and mould body contact-making surface are inclined-plane; Described upper cover and lower cover outside are provided with for convenient wrench andThe draw-in groove of power; Described upper cover and under cover the injected hole that is equipped with diameter 2-5mm; Under described, be covered with sealing ring.
3. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to analogue means, it is characterized in that: instituteStating slip casting container is drum-shaped, and material is safety glass, is provided with dismountable top cover and bottom; The epicoele of described slip casting containerFor holding the injecting paste material slurries of Different Water-Cement Ratio and different grouting pressures being set, in described test mould, inject slurryLiquid.
4. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to analogue means, it is characterized in that:Described upper gear support and the support of described lower block are upper, are provided with the fluting corresponding with described test mould, described in described test mould is placed in, openIn groove, and airtight by sealing ring; In described fluting, be provided with the opening that all described injected holes are exposed.
5. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to analogue means, it is characterized in that: instituteThe side wall lower ends of stating cavity of resorption is provided with stop valve; Described pressue device is high pressure oxygen pressurizer; In the time of slip casting from the bottom up, instituteState the piston that is provided with good seal in epicoele.
6. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to analogue means, it is characterized in that: instituteState sensing device and comprise pressure sensor, osmotic pressure sensor and flow sensor; Described pressure sensor is laid in described pressurizationDevice appendix end, described osmotic pressure sensor and described flow sensor are laid in the inside of described test mould.
7. a kind of breaking surrounding rock grouting and reinforcing according to claim 6 is dynamically responded to analogue means, it is characterized in that: instituteState dynamic monitoring control system and comprise data handling system and movement device; Described data handling system is for filling described sensingPut the drafting of data analysis and the data image of transmission; Described movement device comprises that command receiver, gas flow regulateDevice, pressurizing valve and relief valve, described command receiver receives the action command that described data handling system transmits, by describedThe switch that gas flow adjuster is adjusted spool in described pressurizing valve and relief valve changes pressurization or pressure release state, by rightThe sectional area of the control break gas passage of spool, controls and boosts or the speed of step-down.
8. a kind of breaking surrounding rock grouting and reinforcing according to claim 7 is dynamically responded to analogue means, it is characterized in that: instituteState data handling system and receive the grouting pressure that pressure sensor transmits, and contrast backward movement device with preset valueSend action command, regulate grouting pressure size; Described data handling system receives osmotic pressure sensor and flow sensor passesOsmotic pressure and seepage discharge in the test specimen coming, and contrast with preset value, decide slip casting process whether to finish.
9. a kind of breaking surrounding rock grouting and reinforcing according to claim 1 is dynamically responded to the test method of analogue means, its spyLevy and be, comprise the following steps:
A. pack test material into test mould, and be fixed between two gear supports, slip casting container is filled to slurries sealing;
B. the defeated pressure pipe of high pressure oxygen pressurizer is connected with the pressurization hole of slip casting container upper cover, slip casting container is pressurizeed;
C. pressure data in pressure sensor Real-time Collection pressure process, and fed back to data handling system, data processingSystem receives the grouting pressure data that transmit of pressure sensor, and contrasts backward movement device with preset value and send movingDo instruction, regulate grouting pressure size;
D. the test specimen rock-mass seepage pressure and the osmotic flow that transmit when osmotic pressure sensor and the flow sensor of data handling system receptionAmount reaches the standard of setting, and slip casting process finishes.
10. a kind of breaking surrounding rock grouting and reinforcing according to claim 9 is dynamically responded to the test method of analogue means, itsBe characterised in that: in steps A, in the time of slip casting from top to bottom, first epicoele is filled to slurries, then pressurization, cavity of resorption is as dischargeAir and the container that oozes lower slurries; In the time of slip casting from the bottom up, first epicoele is filled to slurries, and piston is installed, installUpper cover tighten the screws, then container is turned over to turnback, then to epicoele pressurization, pressure-air promotes piston to piston topLiquid pressing.
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| CN110618250A (en) * | 2019-09-20 | 2019-12-27 | 龙岩学院 | Device and method for forming grouting reinforcement material under uniform loading condition |
| CN110646262A (en) * | 2019-09-30 | 2020-01-03 | 龙岩学院 | Grouting reinforcement material forming device under constraint condition and using method thereof |
| CN114018707A (en) * | 2021-11-12 | 2022-02-08 | 中国地质大学（北京） | Pressure grouting test device and method for fractured rock mass in caving zone |
| CN114152510B (en) * | 2021-12-28 | 2023-12-22 | 中国海洋大学 | Dynamic water grouting reinforcement model test device and test method for water-rich broken rock layer |
| CN114397238A (en) * | 2022-01-24 | 2022-04-26 | 中国矿业大学 | Coal-rock mass three-dimensional visual grouting test device and use method |
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|---|---|---|---|---|
| CN201130176Y (en) * | 2007-12-05 | 2008-10-08 | 郭密文 | High pressure slip-casting pilot model apparatus |
| CN102680647A (en) * | 2012-04-20 | 2012-09-19 | 天地科技股份有限公司 | Coal-rock mass grouting reinforcement test bed and test method |
| CN102967687A (en) * | 2012-11-07 | 2013-03-13 | 北京交通大学 | Indoor fracturing grouting experiment system under bidirectional anisobaric condition |
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6832524B2 (en) * | 2002-09-05 | 2004-12-21 | Deslauriers, Inc. | Grout sample unbonded capping system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201130176Y (en) * | 2007-12-05 | 2008-10-08 | 郭密文 | High pressure slip-casting pilot model apparatus |
| CN102680647A (en) * | 2012-04-20 | 2012-09-19 | 天地科技股份有限公司 | Coal-rock mass grouting reinforcement test bed and test method |
| CN102967687A (en) * | 2012-11-07 | 2013-03-13 | 北京交通大学 | Indoor fracturing grouting experiment system under bidirectional anisobaric condition |
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
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