CN103437771A - Indoor model test device capable of simulating slurry balance shield construction and use method thereof - Google Patents
Indoor model test device capable of simulating slurry balance shield construction and use method thereof Download PDFInfo
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- CN103437771A CN103437771A CN2013103231075A CN201310323107A CN103437771A CN 103437771 A CN103437771 A CN 103437771A CN 2013103231075 A CN2013103231075 A CN 2013103231075A CN 201310323107 A CN201310323107 A CN 201310323107A CN 103437771 A CN103437771 A CN 103437771A
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Abstract
The invention relates to an indoor model test device capable of simulating slurry balance shield construction and a use method thereof. The indoor model test device comprises a digging propulsion mechanism, a circulation mechanism and a slurry injection mechanism, wherein the digging propulsion mechanism comprises an electric motor, a speed reducer, a shield shell, a main shaft and a rotary pipe, the circulation mechanism comprises a circulation tank, a micro water pump, a water inlet pipe, a mud outlet pipe and a pressure regulating pipe, and the slurry injection mechanism comprises a slurry injection tank, a slurry tank, a mini compressor, a pneumatic pressure tube, a slurry injection pipe and a slurry injection head. Compared with the prior art, the indoor model test device has the advantages that a whole construction process, such as dynamic digging propulsion, pipe sheet assembly and wall back grouting, of a slurry balance shield construction machine can be simulated, more accurate and real experimental data can be provided for the design of all parameters for actual shield tunneling construction, and the safety during actual construction is guaranteed.
Description
Technical field
The present invention relates to a kind of simulation test device and using method thereof of shield-tunneling construction, especially relate to a kind of indoor model test device and using method of simulating the slurry balance shield construction.
Background technology
Fast development along with China's metro construction cause, the situations such as the uneven bad ground of shield driven tunnel crossing soft or hard, high-rise building are more and more, for the impact of soil disturbance on stratum along the line, building etc. in the reduce shield-tunneling construction, guarantee the safety of construction, just need guarantee the stable of shield tunneling face.
Slurry balance shield injects muddy water in the sealing separation of excavation face, by muddy water, pressurize and the external pressure balance, to guarantee the stable of the excavation face soil body, but geotechnical engineering problems is complicated and changeable, influence factor with regard to slurry balance shield excavation face soil body stability also needs further investigation, therefore, seek a kind of experimental rig and test method thereof of the slurry balance shield of surveying, by the research to its excavation face soil body stability mechanism with to the analysis of its experimental data, for design and the construction of slurry balance shield from now on provides certain reference, and ensure the safe and reliable very necessary of its practical application.
At present, many scholars adopt diverse ways to realize the test to slurry balance shield, and for example, Li Yun (2007) forms mud circulating system by two mud ditch are set, and coordinates jack to carry out the slurry balance shield test; The slurry balance shield model of Guo Xinjun (2008) test use is that the small-sized earth pressure balanced shield, EPBS model of Jiang Yitai forms through transformation, and its mud circulating system also contains two mud ditch, thereby carries out the slurry balance shield test; Muddy water during the people such as He Chuan (2011) fill with muddy water by the air pressure water booster system injects shield structure water tank, then mud liquid is taken out of in the sediment filling, thereby is formed muddy water circulatory system, then coordinate hydraulic jack to carry out the slurry balance shield test.
The circulating system that above experimental rig forms by two mud ditch coordinates hydraulic jack to be tested, and simulated test is too simple, is difficult to study the impact on slurry balance shield machine tunneling process such as cutterhead aperture opening ratio, Caused by Backfill Grouting Pressure.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of indoor model test device and using method of simulating the slurry balance shield construction in order to overcome the defect that above-mentioned prior art exists, this device can be simulated the overall process that under different affecting factors, slurry balance shield dynamically tunnels, thereby for the design and construction of actual slurry balance shield provides experimental data accurately, and ensure its in actual applications safe and reliable.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of indoor model test device of simulating the slurry balance shield construction, this device comprises digging propulsive mechanism, cycling mechanism and slip casting mechanism, wherein,
Described digging propulsive mechanism comprises motor, reducer, shield machine shell, main shaft and coil, described motor is connected with reducer, the inside of described shield machine shell is provided with dividing plate, the top of shield machine shell is provided with cutterhead, shield structure water tank is between cutterhead and dividing plate, blade is embedded among cutterhead, one end of described main shaft is through reducer, the other end is connected with cutterhead, described coil is set on main shaft, one end of coil is on the main shaft between shield machine shell and reducer, and the other end of coil gos deep into the inside of shield machine shell, and is connected with blade;
Described cycling mechanism comprises circulating box, micro pump, water inlet pipe, sludge out pipe and surge pipe, be provided with screen pack in described circulating box, described micro pump is located at the downside of circulating box inside, one end of described water inlet pipe is connected with micro pump, the other end is connected in shield structure water tank, one end of described sludge out pipe is connected into the upside of circulating box, the other end is connected in shield structure water tank, described surge pipe is connected between water inlet pipe and sludge out pipe, by controlling the flow in surge pipe, can regulate the mud hydraulic pressure in shield structure water tank;
Described slip casting mechanism comprises slip casting case, serum pot, micro-compressor, pneumatic tube, Grouting Pipe and casting head, described serum pot and micro-compressor all are located at slip casting case inside, between described micro-compressor and serum pot, by pneumatic tube, be connected, one end of described Grouting Pipe is positioned at serum pot, the other end stretches out the slip casting case, and be connected with casting head, annotate pressure by micro-compressor in serum pot, force slurries from the slurries perfusion to Grouting Pipe, thereby the formation grouting pressure, and grouting amount is controlled by casting head;
Motor rotates by main shaft band movable knife disc, by the relative position between coil adjusting vane and cutterhead, and then the aperture opening ratio of adjusting cutterhead, in cutterhead digging progradation, the water that micro pump leaches screen pack is sent in shield structure water tank by water inlet pipe, in shield structure water tank, the soil that knife cutting gets off with flow back to circulating box by sludge out pipe after water mixes, after digging is advanced to designated depth, close motor, open micro-compressor, by Grouting Pipe and casting head, carry out slip casting.
Described motor and reducer all are welded on the first pedestal, this first pedestal is connected on the second pedestal by three foot screws, this second pedestal is connected on the slip casting case by rotating disk, described the first pedestal is provided with to judge the whether bubble of level of the first pedestal, and described rotating disk is provided with for limiting the first caging bolt of dial rotation angle.By foot screw and rotating disk, can make motor and reducer realize vertically moving and horizontally rotating.
Described reducer upper end is provided with the gun sight for the location digging direction of propulsion, and described motor upper end is provided with controls the switch shelves that main shaft advances, stops and retreating.
The end of described coil is provided with the second caging bolt for limiting the coil anglec of rotation and shows the dial of the anglec of rotation.
Be welded with tongue on described circulating box, tongue is provided with stay pipe, the lower end of this stay pipe is provided with the 3rd caging bolt moved along the tongue direction for limiting stay pipe, the upper end of stay pipe is provided with universal wheel, this universal wheel is supported on the downside of main shaft, and the middle part of stay pipe also is provided with controls the 4th caging bolt that universal wheel moves axially and circumferentially rotate.Universal wheel plays a supportive role to main shaft.
Described shield structure water tank is provided with the stirring rod stirred evenly for the soil body by knife cutting and water near an end of cutterhead.
Be provided with the three road screen packs that hole diminishes step by step in described circulating box, be respectively the first screen pack, the second screen pack and the 3rd screen pack.The muddy water that flows into circulating box from sludge out pipe enters in shield structure water tank by water inlet pipe by micro pump successively after the filtration of the first screen pack, the second screen pack and the 3rd screen pack again, realized recycling of water, and the soil body under cutting has been taken in circulating box.
Described dividing plate is provided with to measure the WG of mud hydraulic pressure in shield structure water tank;
The end that described Grouting Pipe is arranged in serum pot is provided with strainer; Described pneumatic tube is provided with air gauge.
A kind of using method of simulating the indoor model test device of slurry balance shield construction, the method comprises the following steps:
(1) the required solution of configuration cycles mechanism and the required slurries of slip casting, add respectively in circulating box and slurries filling;
(2) the model clay case is placed on to shield machine shell the place ahead, regulate main shaft and shield machine shell vertically and level orientation, accurately fixing digging direction of propulsion;
(3) regulate the 3rd caging bolt and the 4th caging bolt, universal wheel is fixed on to the position that can just support main shaft;
(4) regulate the grouting pressure in the interior mud hydraulic pressure of shield structure water tank and slurries filling:
With suitable cram thing by the opening of cutterhead stifled good after, open micro pump the solution in circulating box is sent into to shield structure water tank, by observing the force value of shield structure water tank internal water pressure meter, and the flow in the adjusting surge pipe, after mud hydraulic pressure in shield structure water tank is adjusted to suitable scope, close micro pump, after in shield structure water tank, solution flows back to circulating box, the thing of cramming on cutterhead is removed, then micro-compressor is opened, close casting head, regulate compressor air pressure to the required pressure of slip casting, close micro-compressor;
(5) the switch shelves on motor are pushed to progressive position, start test, in cutterhead Slicing Model for Foreign soil case, the soil body is after certain depth, open micro pump by the cycling mechanism casting, until whole shield machine shell, all tunnel in the model clay case and the tail end of shield machine shell when long apart from section of jurisdiction of model clay case, switch shelves on motor are pushed to stop position, start to install section of jurisdiction, start slip casting at preformed hole place, section of jurisdiction with casting head after installing, after finishing, slip casting waits for 5～10 minutes, after slurries condense, the switch of motor gear is pushed to progressive position and continue driving, again reach section of jurisdiction when long until Excavation Length, stop driving, start to install section of jurisdiction, slip casting, so repeat, until off-test,
(6) after off-test, treat that all experimental datas collect, the switch shelves on motor are pushed to going-back position, make main shaft and shield machine shell return to initial position.
In step (5), if the aperture opening ratio of research cutterhead, on the impact of driving,, by controlling the second caging bolt, rotates the aperture opening ratio that coil can be regulated cutterhead.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) can reproduce the stress field of slurry balance shield driving;
(2) can realize the complete simulation to slurry balance shield Dynamic Construction overall process;
(3) can carry out deep study and analysis to each influence factor of slurry balance shield construction stability, for design and the construction of slurry balance shield from now on provides certain technical support;
(4) experimental rig used is simple and convenient, and experimentation cost is low, and the degree of accuracy is high.
The present invention has true comprehensively characteristics aspect the influence factor of research slurry balance shield construction stability problem, experimental data is reliable, and the design and construction that can be slurry balance shield provides sound assurance.
The accompanying drawing explanation
The general structure schematic diagram that Fig. 1 is experimental rig of the present invention;
The partial structurtes schematic diagram that Fig. 2 is motor and reducer in the present invention;
The partial structurtes schematic diagram that Fig. 3 is stay pipe and universal wheel in the present invention;
The partial structurtes schematic diagram that Fig. 4 is shield machine shell in the present invention;
The partial structurtes schematic diagram that Fig. 5 is slip casting case in the present invention;
The partial structurtes schematic diagram that Fig. 6 is circulating box in the present invention.
In figure: 1 is gun sight, 2 is reducer, 3 is motor, 4 is foot screw, 5 is rotating disk, 6 is the slip casting case, 7 is Grouting Pipe, 8 is casting head, 9 is sludge out pipe, 10 is surge pipe, 11 is water inlet pipe, 12 is tongue, 13 is stay pipe, 14 is the shield machine shell, 15 is cutterhead, 16 is coil, 17 is universal wheel, 18 is main shaft, 19 is circulating box, 20 is the switch shelves, 21 is bubble, 22 is the first pedestal, 23 is the second pedestal, 24 is the first caging bolt, 25 is dial, 26 is the second caging bolt, 27 is the 4th caging bolt, 28 is the 3rd caging bolt, 29 is dividing plate, 30 is blade, 31 is WG, 32 is pneumatic tube, 33 is air gauge, 34 is micro-compressor, 35 is the slurries filling, 36 is strainer, 37 is the first screen pack, 38 is the second screen pack, 39 is the 3rd screen pack, 40 is micro pump.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of indoor model test device of simulating the slurry balance shield construction, as shown in Fig. 1～Fig. 6, this device comprises digging propulsive mechanism, cycling mechanism and slip casting mechanism, wherein,
The digging propulsive mechanism comprises motor 3, reducer 2, shield machine shell 14, main shaft 18 and coil 16, motor 3 is connected with reducer 2, the inside of shield machine shell 14 is provided with dividing plate 29, the top of shield machine shell 14 is provided with cutterhead 15, shield structure water tank is between cutterhead 15 and dividing plate 29, blade 30 is embedded among cutterhead 15, one end of main shaft 18 is through reducer 2, the other end is connected with cutterhead 15, coil 16 is set on main shaft 18, one end of coil 16 is on the main shaft 18 between shield machine shell 14 and reducer 2, the other end of coil 16 gos deep into the inside of shield machine shell 14, and be connected with blade 30,
Cycling mechanism comprises circulating box 19, micro pump 40, water inlet pipe 11, sludge out pipe 9 and surge pipe 10, be provided with screen pack in circulating box 19, micro pump 40 is located at the downside of circulating box 19 inside, one end of water inlet pipe 11 is connected with micro pump 40, the other end is connected in shield structure water tank, one end of sludge out pipe 9 is connected into the upside of circulating box 19, the other end is connected in shield structure water tank, surge pipe 10 is connected between water inlet pipe 11 and sludge out pipe 9, by controlling the flow in surge pipe 10, can regulate the mud hydraulic pressure in shield structure water tank;
Slip casting mechanism comprises slip casting case 6, serum pot 35, micro-compressor 34, pneumatic tube 32, Grouting Pipe 7 and casting head 8, serum pot 35 all is located at slip casting case 6 inside with micro-compressor 34, between micro-compressor 34 and serum pot 35, by pneumatic tube 32, be connected, one end of Grouting Pipe 7 is positioned at serum pot 35, the other end stretches out slip casting case 6, and be connected with casting head 8, annotate pressure by micro-compressor 34 in serum pot 35, force slurries from the slurries perfusion to Grouting Pipe 7, thereby the formation grouting pressure, and grouting amount is controlled by casting head 8;
Motor 3 is by main shaft 18 band movable knife disc 15 rotations, by the relative position between coil 16 adjusting vanes 30 and cutterhead 15, and then the aperture opening ratio of adjusting cutterhead 15, in cutterhead 15 digging progradations, the water that micro pump 40 leaches screen pack is sent in shield structure water tank by water inlet pipe 11, in shield structure water tank, the soil that cutterhead 15 cuts with flow back to circulating box 19 by sludge out pipe 9 after water mixes, after digging is advanced to designated depth, close motor 3, open micro-compressor 34, by Grouting Pipe 7 and casting head 8, carry out slip casting.
Motor 3 all is welded on the first pedestal 22 with reducer 2, this first pedestal 22 is connected on the second pedestal 23 by three foot screws 4, this second pedestal 23 is connected on slip casting case 6 by rotating disk 5, the first pedestal 22 is provided with to judge the whether bubble 21 of level of the first pedestal 22, and rotating disk 5 is provided with for limiting the first caging bolt 24 of rotating disk 5 rotational angles.By foot screw 4 and rotating disk 5, can make motor 3 and reducer 2 realize vertically moving and horizontally rotating.
Reducer 2 upper ends are provided with the gun sight 1 for the location digging direction of propulsion, and motor 3 upper ends are provided with controls the switch shelves 20 that main shaft 18 advances, stops and retreating.The end of coil 16 is provided with the second caging bolt 26 for limiting coil 16 anglecs of rotation and shows the dial 25 of the anglec of rotation.Be welded with tongue 12 on circulating box 19, tongue 12 is provided with stay pipe 13, the lower end of this stay pipe 13 is provided with the 3rd caging bolt 28 moved along tongue 12 directions for limiting stay pipe 13, the upper end of stay pipe 13 is provided with universal wheel 17, this universal wheel 17 is supported on the downside of main shaft 18, and the middle part of stay pipe 13 also is provided with controls the 4th caging bolt 27 that universal wheel 17 moves axially and circumferentially rotate.17 pairs of main shafts 18 of universal wheel play a supportive role.Shield structure water tank is provided with the stirring rod stirred evenly for the soil body by cutterhead 15 cuttings and water near an end of cutterhead 15.
Be provided with the three road screen packs that hole diminishes step by step in circulating box 19, the muddy water that be respectively the first screen pack 37, the second screen pack 38 and the 3rd screen pack 39, from sludge out pipe 9, flows into circulating box 19 enters in shield structure water tank by water inlet pipe 11 by micro pump 40 successively after the filtration of the first screen pack 37, the second screen pack 38 and the 3rd screen pack 39 again, realized recycling of water, and the soil body under cutting has been taken in circulating box 19.Dividing plate 29 is the WGs 31 that are provided with to measure mud hydraulic pressure in shield structure water tank; The end that Grouting Pipe 7 is arranged in serum pot 35 is provided with strainer 36; Pneumatic tube 32 is provided with air gauge 33.
A kind of using method of simulating the indoor model test device of slurry balance shield construction, the method comprises the following steps:
(1) the required solution of configuration cycles mechanism and the required slurries of slip casting, add respectively in circulating box 19 and slurries filling;
(2) the model clay case is placed on to shield machine shell 14 the place aheads, regulate main shaft 18 and shield machine shell 14 vertically and level orientation, accurately fixing digging direction of propulsion;
(3) regulate the 3rd caging bolt 28 and the 4th caging bolt 27, universal wheel 17 is fixed on to the position that can just support main shaft 18;
(4) regulate the grouting pressure in the interior mud hydraulic pressure of shield structure water tank and slurries filling:
With suitable cram thing by the opening of cutterhead 15 stifled good after, open micro pump 40 solution in circulating box 19 is sent into to shield structure water tank, by observing the force value of shield structure water tank internal water pressure meter 31, and the flow in adjusting surge pipe 10, after mud hydraulic pressure in shield structure water tank is adjusted to suitable scope, close micro pump 40, after in shield structure water tank, solution flows back to circulating box 19, the thing of cramming on cutterhead 15 is removed, then micro-compressor 34 is opened, close casting head 8, regulate compressor air pressure to the required pressure of slip casting, close micro-compressor 34;
(5) the switch shelves 20 on motor 3 are pushed to progressive position, start test, in cutterhead 15 Slicing Model for Foreign soil casees, the soil body is after certain depth, open micro pump 40 by the cycling mechanism casting, until whole shield machine shell 14, all tunnel in the model clay case and the tail end of shield machine shell 14 when long apart from section of jurisdiction of model clay case, switch shelves 20 on motor 3 are pushed to stop position, start to install section of jurisdiction, start slip casting at preformed hole place, section of jurisdiction with casting head 8 after installing, after finishing, slip casting waits for 5～10 minutes, after slurries condense, the switch of motor 3 gear is pushed to progressive position and continue driving, again reach section of jurisdiction when long until Excavation Length, stop driving, start to install section of jurisdiction, slip casting, so repeat, until off-test,
(6) after off-test, treat that all experimental datas collect, the switch shelves 20 on motor 3 are pushed to going-back position, make main shaft 18 and shield machine shell 14 return to initial position.
In step (5), if the aperture opening ratio of research cutterhead 15, on the impact of driving,, by controlling the second caging bolt 26, rotates the aperture opening ratio that coil 16 can be regulated cutterhead 15.
Claims (10)
1. the indoor model test device that can simulate the slurry balance shield construction, is characterized in that, this device comprises digging propulsive mechanism, cycling mechanism and slip casting mechanism, wherein,
Described digging propulsive mechanism comprises motor (3), reducer (2), shield machine shell (14), main shaft (18) and coil (16), described motor (3) is connected with reducer (2), the inside of described shield machine shell (14) is provided with dividing plate (29), the top of shield machine shell (14) is provided with cutterhead (15), shield structure water tank is positioned between cutterhead (15) and dividing plate (29), blade (30) is embedded among cutterhead (15), one end of described main shaft (18) is through reducer (2), the other end is connected with cutterhead (15), described coil (16) is set on main shaft (18), one end of coil (16) is positioned on the main shaft (18) between shield machine shell (14) and reducer (2), the other end of coil (16) gos deep into the inside of shield machine shell (14), and be connected with blade (30),
Described cycling mechanism comprises circulating box (19), micro pump (40), water inlet pipe (11), sludge out pipe (9) and surge pipe (10), described circulating box is provided with screen pack in (19), described micro pump (40) is located at the inner downside of circulating box (19), one end of described water inlet pipe (11) is connected with micro pump (40), the other end is connected in shield structure water tank, one end of described sludge out pipe (9) is connected into the upside of circulating box (19), the other end is connected in shield structure water tank, described surge pipe (10) is connected between water inlet pipe (11) and sludge out pipe (9),
Described slip casting mechanism comprises slip casting case (6), serum pot (35), micro-compressor (34), pneumatic tube (32), Grouting Pipe (7) and casting head (8), described serum pot (35) all is located at slip casting case (6) inside with micro-compressor (34), between described micro-compressor (34) and serum pot (35), by pneumatic tube (32), be connected, one end of described Grouting Pipe (7) is positioned at serum pot (35), the other end stretches out slip casting case (6), and is connected with casting head (8);
Motor (3) is by main shaft (18) band movable knife disc (15) rotation, by the relative position between coil (16) adjusting vane (30) and cutterhead (15), and then the aperture opening ratio of adjusting cutterhead (15), in cutterhead (15) digging progradation, the water that micro pump (40) leaches screen pack is sent in shield structure water tank by water inlet pipe (11), in shield structure water tank, after mixing with water, the soil that cutterhead (15) cuts flows back to circulating box (19) by sludge out pipe (9), after digging is advanced to designated depth, close motor (3), open micro-compressor (34), carry out slip casting by Grouting Pipe (7) and casting head (8).
2. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, described motor (3) all is welded on the first pedestal (22) with reducer (2), this first pedestal (22) is connected on the second pedestal (23) by foot screw (4), this second pedestal (23) is connected on slip casting case (6) by rotating disk (5), described the first pedestal (22) is provided with bubble (21), and described rotating disk (5) is provided with for limiting first caging bolt (24) of rotating disk (5) rotational angle.
3. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, described reducer (2) upper end is provided with gun sight (1), and described motor (3) upper end is provided with controls the switch shelves (20) that main shaft advances, stops and retreating.
4. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, the end of described coil (16) is provided with the second caging bolt (26) for limiting coil (16) anglec of rotation and shows the dial (25) of the anglec of rotation.
5. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, be welded with tongue (12) on described circulating box (19), tongue (12) is provided with stay pipe (13), the lower end of this stay pipe (13) is provided with the 3rd caging bolt (28) moved along tongue (12) direction for limiting stay pipe (13), the upper end of stay pipe (13) is provided with universal wheel (17), this universal wheel (17) is supported on the downside of main shaft (18), the middle part of stay pipe (13) also is provided with controls the 4th caging bolt (27) that universal wheel (17) moves axially and circumferentially rotates.
6. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, described shield structure water tank is provided with the stirring rod stirred evenly for the soil body by cutterhead (15) cutting and water near an end of cutterhead (15).
7. a kind of indoor model test device of simulating slurry balance shield construction according to claim 1, it is characterized in that, be provided with the three road screen packs that hole diminishes step by step in described circulating box (19), be respectively the first screen pack (37), the second screen pack (38) and the 3rd screen pack (39).
8. a kind of indoor model test device of simulating the slurry balance shield construction according to claim 1, is characterized in that, described dividing plate (29) is provided with to measure the WG (31) of mud hydraulic pressure in shield structure water tank;
The end that described Grouting Pipe (7) is arranged in serum pot (35) is provided with strainer (36); Described pneumatic tube (32) is provided with air gauge (33).
9. a using method of simulating the indoor model test device of slurry balance shield construction as claimed in claim 1, is characterized in that, the method comprises the following steps:
(1) the required solution of configuration cycles mechanism and the required slurries of slip casting, add respectively circulating box (19) and slurries to fill with in (35);
(2) the model clay case is placed on to shield machine shell (14) the place ahead, regulate main shaft (18) and shield machine shell (14) vertically and level orientation, accurately fixing digging direction of propulsion;
(3) regulate the 3rd caging bolt (28) and the 4th caging bolt (27), universal wheel (17) is fixed on to the position that can just support main shaft (18);
(4) mud hydraulic pressure and the slurries regulated in shield structure water tank are filled with the grouting pressure in (35);
(5) the switch shelves (20) on motor (3) are pushed to progressive position, start test, in cutterhead (15) Slicing Model for Foreign soil case, the soil body is after certain depth, open micro pump (40) by the cycling mechanism casting, until whole shield machine shell (14), all tunnel in the model clay case and the tail end of shield machine shell (14) when long apart from section of jurisdiction of model clay case, switch shelves (20) on motor (3) are pushed to stop position, start to install section of jurisdiction, after installing the section of jurisdiction preformed hole for place casting head (8) start slip casting, after finishing, slip casting waits for 5～10 minutes, after slurries condense, the switch of motor (3) gear (20) is pushed to progressive position and continue driving, again reach section of jurisdiction when long until Excavation Length, stop driving, start to install section of jurisdiction, slip casting, so repeat, until off-test,
(6) after off-test, treat that all experimental datas collect, the switch shelves (20) on motor (3) are pushed to going-back position, make main shaft (18) and shield machine shell (14) return to initial position.
10. a kind of using method of simulating the indoor model test device of slurry balance shield construction according to claim 9, it is characterized in that, in step (5), if the impact of the aperture opening ratio of research cutterhead (15) on driving,, by controlling the second caging bolt (26), rotation coil (16) can be regulated the aperture opening ratio of cutterhead (15).
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| CN110206551A (en) * | 2019-05-27 | 2019-09-06 | 北京交通大学 | The device and method that slurry-water balance type shield prototype muddy water circulation can be achieved |
| CN110346163A (en) * | 2019-07-18 | 2019-10-18 | 重庆大学 | A kind of pusher experimental rig and method for shield model test |
| CN110456027A (en) * | 2019-08-22 | 2019-11-15 | 江苏建筑职业技术学院 | A kind of slurry shield knife cutting soil body generation mud membrane pilot unit contained |
| CN112504326A (en) * | 2020-10-27 | 2021-03-16 | 浙江大学 | Test device for simulating internal pressurization-filtration dehydration of slurry |
| CN113391051A (en) * | 2020-03-12 | 2021-09-14 | 辽宁工程技术大学 | Slurry shield simulation test device with adjustable cutter head opening rate and simulation method thereof |
| CN113530561A (en) * | 2021-08-10 | 2021-10-22 | 中铁隧道局集团有限公司 | Shield cutter head system capable of adjusting opening rate in real time and control method thereof |
| CN114019134A (en) * | 2021-08-23 | 2022-02-08 | 长安大学 | Combined type shield tunnel wall back grouting simulation device and test method |
| CN114550567A (en) * | 2022-01-22 | 2022-05-27 | 中交二公局第三工程有限公司 | Indoor display training system for shield process |
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| CN106841578A (en) * | 2017-04-13 | 2017-06-13 | 中国科学院武汉岩土力学研究所 | A kind of slurry shield face mud hydraulic pressure experiment test device and method of testing |
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| CN109658808A (en) * | 2019-01-10 | 2019-04-19 | 黄瑞哲 | A kind of Various Complex Work condition analogue excavation equipment suitable for tunnel model test |
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| CN110456027A (en) * | 2019-08-22 | 2019-11-15 | 江苏建筑职业技术学院 | A kind of slurry shield knife cutting soil body generation mud membrane pilot unit contained |
| CN110456027B (en) * | 2019-08-22 | 2021-12-31 | 江苏建筑职业技术学院 | Test device for producing mud film by cutting soil body with cutter head of mud shield |
| CN113391051A (en) * | 2020-03-12 | 2021-09-14 | 辽宁工程技术大学 | Slurry shield simulation test device with adjustable cutter head opening rate and simulation method thereof |
| CN112504326A (en) * | 2020-10-27 | 2021-03-16 | 浙江大学 | Test device for simulating internal pressurization-filtration dehydration of slurry |
| CN112504326B (en) * | 2020-10-27 | 2021-08-03 | 浙江大学 | Test device for simulating internal pressurization-filtration dehydration of slurry |
| CN113530561A (en) * | 2021-08-10 | 2021-10-22 | 中铁隧道局集团有限公司 | Shield cutter head system capable of adjusting opening rate in real time and control method thereof |
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