CN203595613U - Test device simulating soil pressure balance shield construction process - Google Patents
Test device simulating soil pressure balance shield construction process Download PDFInfo
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- CN203595613U CN203595613U CN201320784012.9U CN201320784012U CN203595613U CN 203595613 U CN203595613 U CN 203595613U CN 201320784012 U CN201320784012 U CN 201320784012U CN 203595613 U CN203595613 U CN 203595613U
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Abstract
The utility model discloses a test device simulating a soil pressure balance shield construction process. The test device is used for a model test researching a shield tunnel construction process in a soft soil region. A model shield machine advancing system is erected on a cushion block pedestal; during excavation, a jack cabinet clings to a counterforce wall, the central axis of a model shield machine coincides with the central axis of a to-be-excavated soil body in a model box, and after error correction, a jack is started and jacking speed of the jack is adjusted, so under the pushing of a push arm, model linings move forward; meanwhile, a rotating driver is started and rotating speed is adjusted, so a cutterhead begins to cut the soil body and extrude muck in a soil cabin into a spiral oil discharging device via a separation plate hole, and spiral blades rotate to bring out and transmit the muck to a soil discharging outlet, so the muck drops to a coil receiving groove; and with the promotion of excavation surface work, the model linings with spaced scratches can be timely provided, so a support function is achieved. The test device is capable of conveniently and closely simulating the soil pressure balance shield construction process and providing precise and accurate test data for engineering construction.
Description
Technical field
The utility model relates to the model test apparatus of a kind of soft clay area constructing tunnel process, is applied to the test of simulation Shield Tunneling, draws best shield-tunneling construction parameter.
Background technology
Earth pressure balanced shield, EPBS constructing tunnel is a kind of bored tunnel construction method, its work progress is: the shield cutter front soil body enters native cabin through cutting, dregs is desired plasticity state in possessing construction in native cabin after fixing stirring rod is fully uniformly mixed, in the time that the soil body is full of native cabin, soil, hydraulic pressure on its passive soil pressure and digging face are basic identical, therefore digging face is realized balance.Meanwhile, mineralization pressure gradient between soil output and native cabin, makes dregs discharge smoothly through soil output.The every propelling one of shield machine encircles distance, and just under the supporting of shield tail, an assembled lining papers is built, and pressure injection slurry in timely Lining Ring periphery space after shield tail, to prevent tunnel and land subsidence, can realize shield machine and continue driving after above-mentioned steps has repeated.Visible, shield tunnel tunneling construction is the process of a complicated dynamic change, construction parameter difference to shield tunnel construction can be smoothly, security implementation is significant.
At present, some earth pressure balanced shield, EPBS work progress model tests can only be simulated the local work progress of prototype shield structure, for pipe sheet assembling supporting even slip casting all fail fine enforcement.In recent years, lot of domestic and foreign scholar is carrying out a large amount of research aspect earth pressure balanced shield driving model test.1984, develop model balancing earth-pressure shielding machine mole with the seminar of Japanese Waseda University headed by Sen Lin professor, this device is a half section model shielding machine, is made up of propulsive mechanism, cutting mechanism and unearthed mechanism; 2006, Zhu Hehua, Xu fashion etc., take similarity relation as theoretical foundation, adopted
model shield has been carried out the driving model test under soft soil layer, has obtained some achievements in research; 2012, He Chuan etc. were take China's city underground Shield engineering as background, and the scaled model shielding machine that is made into has completed the layer during similar model test of earth pressure balanced shield, EPBS tunneling process.But in above-mentioned experiment, the work progress such as not simulation shield tail pipe sheet assembling and shield tail decylization having, some progradations are also to realize based on manual mode, there is larger operate miss, more do not consider in shield tunneling process the impact of the factors such as posture is corrected, the reduction of lining cutting rigidity, do not realize the driving simulation in complete meaning.Therefore existing shield driving model pilot system all can not truly be simulated earth pressure balanced shield, EPBS work progress truly, easily, thereby affects normally carrying out of city, soft clay area shield tunnel construction.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of test unit of simulating earth pressure balanced shield, EPBS work progress, this test unit not only can more convenient in process of the test, more effectively be simulated the supporting to tunneling section in shield tunnel construction, also can be only in the situation that using a rotating driving device, when completing the cutting of cutterhead and the normal casting of soil output, carry out, and can make this driving system advance along set axis well, the generation of the phenomenon that can effectively prevent from backbreaking.This device can provide accurately for engineering construction, real test figure, to ensure carrying out smoothly of city, soft clay area shield tunnel construction.
Create object for reaching foregoing invention, the utility model adopts following technical proposals:
A kind of test unit of simulating earth pressure balanced shield, EPBS work progress, comprise cutting mechanism, mechanism and propulsive mechanism are unearthed, cutting mechanism comprises cutterhead and cutterhead rotating driving device, cutterhead is parallel with native cabin dividing plate, between cutterhead and native cabin dividing plate, be provided with native cabin, cutterhead rotating driving device drives cutterhead to rotate, the front workplace of cutterhead is directly cut the soil body in front, and make the soil body being cut enter the native cabin at rear, the cutterhead back side, the cylindrical inner chamber in soil cabin is by columnar model lining cutting, cutterhead and native cabin dividing plate enclose formation, model lining cutting inside surface tightly blocks the outer rim of native cabin dividing plate and interfixes, cutterhead rotates with respect to model lining cutting, activity shutoff is carried out in native cabin, unearthed mechanism comprises stirring rod, partition board hole, soil output and soil outlet, partition board hole hollow out is opened on the dividing plate of native cabin, stirring rod is arranged in native cabin, and be fixed on cutterhead, the soil body stirring powder entering in native cabin is broken into dregs, constantly be squeezed in soil output by partition board hole by well-beaten dregs, soil output comprises soil output inner core, soil output urceolus, helical blade and conveying rotating driving device, the leading section of soil output urceolus is fixed on the dividing plate of native cabin, partition board hole leads to the dregs transfer passage that forms soil output between soil output inner core and soil output urceolus, the dead in line of soil output inner core and soil output urceolus, the helical blade fixing spacing of being separated by coordinates with the bolt hole A offering on soil output inner core by bolt A, helical blade does not contact the inwall of soil output urceolus, carry rotating driving device to drive soil output inner core to rotate in soil output urceolus, and then drive helical blade to rotate, the dregs of extruding from partition board hole is passed through rotary transfer by the helical blade that install the forward position of soil output inner core, carry at rear portion to soil output inner core, the lower rear of soil output urceolus has soil outlet, dregs is finally discharged from soil outlet, cutterhead rotating driving device and conveying rotating driving device are merged into a rotating driving device, realized by the rotary actuation case that is installed on the mechanism's end that is unearthed, the front end that rotarilys actuate case is fixedly connected with the end of soil output urceolus, rotariling actuate case driving end is coaxially fixedly connected with soil output inner core end, the front end of soil output inner core passes from the center pit of native cabin dividing plate, and extend to the back side of cutterhead, the front end of soil output inner core is fixedly connected with cutterhead, make to rotarily actuate case and drive cutterhead, stirring rod and helical blade rotate, completing cutterhead cuts and the normal casting operation of soil output the soil body in front, soil output is placed in model lining cutting, and model lining cutting is assembled by model lining segment, forms tunnel excavation support model equipment, propulsive mechanism comprises lifting jack cabinet, the direct support jack cabinet of counter force wall fixed pedestal, the top of the jack thrust take-off lever of lifting jack cabinet rotarilys actuate case by pushing tow and promotes pushing ahead of soil output urceolus, and then promote cutting mechanism along excavation axis driving, between the model lining cutting that rotarilys actuate case and front thereof, be also provided with at least four pushing arms, the end of the front end bolster model lining cutting of each pushing arm, the rearward end of each pushing arm is all fixedly connected with rotary actuation case with bolt hole B by bolt B, the jack thrust take-off lever of lifting jack cabinet is also by the rearward end of the each pushing arm of pushing tow, model lining cutting is moved forward, realize the jacking supporting automatically in time of lining segment.
As the preferred technical scheme of the utility model, above-mentioned helical blade rotates and takes out of dregs, and be sent to soil outlet place and fall to and connect in soil box, unearthed mechanism and propulsive mechanism are all erected on cushion block base, cushion block base and counter force wall interfix, in the middle cut-out cushion block material of cushion block base, below the soil outlet of soil output urceolus, form and connect soil box, cutter squarely sliding tray and circular arc sliding tray are dug respectively in connect soil box front and rear at cushion block base, and square sliding tray overlaps with the axis of circular arc sliding tray, formation model shield tunneling deviation correcting device, lifting jack cabinet embeds in square sliding tray, rotarily actuate case slides in square sliding tray, model lining cutting is slided in circular arc sliding tray, each model lining segment of tunnel excavation support model equipment all has the smooth outer surface towards tunnel wall, coat in advance lubricant at model lining segment outside surface.
Above-mentioned model lining cutting outside surface is preferably with cut.
As the preferred technical scheme of further improving of the utility model, wherein circumferentially the cut of annular is equidistant distribution along model lining cutting, and longitudinally the cut of straight line is distributed in the waist both sides of model lining cutting.
On the dividing plate of above-mentioned native cabin, offer 12 partition board holes along annular spread.
The utility model compared with prior art, has following substantive distinguishing features and advantage:
1. the utility model test unit can be realized the complete simulation to true shield tunnel construction process and liner structure supporting, realizes the driving simulation in complete meaning, can really simulate in fact, easily earth pressure balanced shield, EPBS work progress;
2. can be only in the situation that using a rotating driving device, the cutting that completes cutterhead is carried out with the normal casting of soil output time, needs the test unit of control less, facilitates experimenter to operate;
3. abandon over and do not simulate shield tail pipe sheet assembling, or only depend on the test method of manual propelling section of jurisdiction, realize the jacking supporting automatically in time of lining segment;
4. the prefabricated model lining cutting with cut simulates the Stiffness degradation impact in pipe sheet assembling process more realistically;
5. prefabricated can make driving system advance along set axis with square and sliding tray circular arc, the generation of effective control over-excavation phenomenon;
6. connect the soil box dregs of attaching cutting completely, it is not suffered a loss, calculate conveniently, accurately and quickly the test parameters such as the amount of being unearthed, the speed of being unearthed for experimenter;
7. key node place mode with bolts as far as possible, is very easy to the dismounting of device, and management is carried in convenient storage.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the utility model embodiment mono-test unit of simulating earth pressure balanced shield, EPBS work progress.
Fig. 2 is the soil output structural representation of the utility model embodiment mono-.
Fig. 3 is the soil output front portion structure schematic diagram near the utility model embodiment mono-of native cabin dividing plate.
Fig. 4 be the utility model embodiment mono-rotary actuation case respectively with the inside and outside cylinder of pushing arm, soil output connected mode schematic diagram.
Fig. 5 is rotary actuation case and the pushing arm bolt connection diagram of the utility model embodiment mono-.
Fig. 6 be the utility model embodiment mono-connect soil box and model shield excavation deviation correcting device structural representation.
Fig. 7 is the model liner structure schematic diagram with cut of the utility model embodiment bis-.
Fig. 8 is the native cabin diaphragm structure schematic diagram of the utility model embodiment tri-.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
embodiment mono-:
Referring to Fig. 1～Fig. 6, a kind of test unit of simulating earth pressure balanced shield, EPBS work progress, comprise cutting mechanism, mechanism and propulsive mechanism are unearthed, cutting mechanism comprises cutterhead 1 and cutterhead rotating driving device, cutterhead 1 is parallel with native cabin dividing plate 3, between cutterhead 1 and native cabin dividing plate 3, be provided with native cabin 5, cutterhead rotating driving device drives cutterhead 1 to rotate, the front workplace of cutterhead 1 is directly cut the soil body in front, and make the soil body being cut enter the native cabin 5 at cutterhead 1 rear, the back side, the cylindrical inner chamber in soil cabin 5 is by columnar model lining cutting 7, cutterhead 1 and native cabin dividing plate 3 enclose formation, model lining cutting 7 inside surfaces tightly block the outer rim of native cabin dividing plate 3 and interfix, cutterhead 1 rotates with respect to model lining cutting 7, activity shutoff is carried out in native cabin 5, unearthed mechanism comprises stirring rod 2, partition board hole 4, soil output 14 and soil outlet 13, partition board hole 4 hollow outs are opened on native cabin dividing plate 3, stirring rod 2 is arranged in native cabin 5, and be fixed on cutterhead 1, the soil body stirring powder entering in native cabin 5 is broken into dregs, constantly be squeezed in soil output 14 by partition board hole 4 by well-beaten dregs, soil output 14 comprises soil output inner core 6, soil output urceolus 10, helical blade 8 and conveying rotating driving device, the leading section of soil output urceolus 10 is fixed on native cabin dividing plate 3, partition board hole 4 leads to the dregs transfer passage that forms soil output between soil output inner core 6 and soil output urceolus 10, the dead in line of soil output inner core 6 and soil output urceolus 10, the helical blade 8 fixing spacing of being separated by coordinates with the bolt hole A9 offering on soil output inner core 6 by bolt A21, junction mode with bolts as far as possible, be very easy to the dismounting of device, management is carried in easy disassembly maintenance and storage, helical blade 8 does not contact the inwall of soil output urceolus 10, as shown in Figures 2 and 3, helical blade 8 is by bolt A21, be and be equidistantly fixed on soil output inner core 6 to till soil outlet, carry rotating driving device to drive soil output inner core 6 to rotate in soil output urceolus 10, and then drive helical blade 8 to rotate, the dregs of extruding from partition board hole 4 is passed through rotary transfer by the helical blade 8 that install the forward position of soil output inner core 6, carry at rear portion to soil output inner core 6, the lower rear of soil output urceolus 10 has soil outlet 13, dregs is finally discharged from soil outlet 13, cutterhead rotating driving device and conveying rotating driving device are merged into a rotating driving device, realized by the rotary actuation case 15 that is installed on the mechanism's end that is unearthed, only in the situation that using a rotating driving device, when completing the cutting of cutterhead 1 and soil output 14 normal casting, carry out, need the test unit of control less, facilitate experimenter to operate, the front end that rotarilys actuate case 15 is fixedly connected with the end of soil output urceolus 10, rotariling actuate case 15 driving ends is coaxially fixedly connected with soil output inner core 6 ends, the front end of soil output inner core 6 passes from the center pit of native cabin dividing plate 3, and extend to the back side of cutterhead 1, the front end of soil output inner core 6 is fixedly connected with cutterhead 1, make to rotarily actuate case 15 and drive cutterhead 1, stirring rod 2 and helical blade 8 rotate, completing cutterhead 1 cuts and the normal casting operation of soil output 14 soil body in front, soil output 14 is placed in model lining cutting 7, and model lining cutting 7 is assembled by model lining segment, forms tunnel excavation support model equipment, propulsive mechanism comprises lifting jack cabinet 16, direct support jack cabinet 16 fixed pedestals of counter force wall 20, the top of the jack thrust take-off lever 17 of lifting jack cabinet 16 rotarilys actuate case 15 by pushing tow and promotes pushing ahead of soil output urceolus 10, and then promote cutting mechanism along excavation axis driving, between the model lining cutting 7 that rotarilys actuate case 15 and front thereof, be also provided with at least four pushing arms 11, the end of the front end bolster model lining cutting 7 of each pushing arm 11, the rearward end 12 of each pushing arm 11 is all fixedly connected with rotary actuation case 15 with bolt hole B22 by bolt B 23, junction mode with bolts as far as possible, be very easy to the dismounting of device, management is carried in easy disassembly maintenance and storage, the jack thrust take-off lever 17 of lifting jack cabinet 16 is also by the rearward end 12 of the each pushing arm 11 of pushing tow, model lining cutting 7 is moved forward, realize the jacking supporting automatically in time of lining segment.Abandon over and do not simulate shield tail pipe sheet assembling, or only depend on the test method of manual propelling section of jurisdiction, realize the jacking supporting automatically in time of lining segment.Further can realize for the assembled supporting of lining segment, even slip casting can fine experiment test.In whole model equipment, the all drive unit rotations together under driving in rotary actuation case 15 of cutterhead 1, stirring rod 2, soil output inner core 6, helical blade 8, cutting mechanism and unearthed mechanism, the lifting jack of driving system in lifting jack cabinet 16 tunnels along excavation axis under promoting.This experimental provision can be convenient, simulate soft clay area shield tunnel construction process truly, can provide accurately for engineering construction, test figure really.
In the present embodiment, referring to Fig. 6, helical blade 8 rotates and takes out of dregs, and be sent to soil outlet 13 places and fall to and connect in soil box 19, unearthed mechanism and propulsive mechanism are all erected on cushion block base 18, cushion block base 18 interfixes with counter force wall 20, in the middle cut-out cushion block material of cushion block base 18, below the soil outlet 13 of soil output urceolus 10, form and connect soil box 19, connect soil box 19 dregs of attaching cutting completely, it is not suffered a loss, convenient for experimenter, accurately, calculate quickly the amount of being unearthed, the test parameterss such as the speed of being unearthed, cutter squarely sliding tray 24 and circular arc sliding tray 25 are dug respectively in connect soil box 19 fronts and rear at cushion block base 18, and square sliding tray 24 overlaps with the axis of circular arc sliding tray 25, formation model shield tunneling deviation correcting device, lifting jack cabinet 16 embeds in square sliding tray 24, rotarily actuate case 15 in the interior slip of square sliding tray 24, model lining cutting 7 is in the interior slip of circular arc sliding tray 25, each model lining segment of tunnel excavation support model equipment all has the smooth outer surface towards tunnel wall, coat in advance lubricant at model lining segment outside surface, make model lining cutting 7 better in the interior slip of circular arc sliding tray 25.Prefabricated can make driving system advance along set axis with square and sliding tray circular arc, effectively the generation of control over-excavation phenomenon.
Principle of work of the present utility model and the course of work are: on cushion block base 18, set up model shielding machine driving system, make lifting jack cabinet 16, rotarily actuate case 15 and prefabricated model lining cutting 7 and snap in base in sliding tray, around model lining segment, coat in advance moderate lubrication agent; Lifting jack cabinet 16 is close to counter force wall 20, regulate the position of the test unit of the utility model simulation earth pressure balanced shield, EPBS work progress, the axis of model shielding machine is overlapped with soil body axis in model casing to be excavated, proofread and correct the complete excavation that starts after errorless, start hydraulic jack, regulate lifting jack move speed and thrust, now model lining cutting 7 constantly moves forward under pushing arm 11 promotes; Meanwhile open rotating driver, be adjusted to desired speed, cutterhead 1 starts to cut the soil body in the model casing of front and also can dregs in native cabin 5 constantly be clamp-oned in soil output 14 by partition board hole 4, under rotating, helical blade 8 takes dregs out of, being sent to soil outlet 13 places falls to and connects in soil box 19, more theoretical unearthed amount and actually connect dregs amount in soil box 19 and judge shield driving quality, note abnormalities and adjust in time excavation parameters such as rotariling actuate rotating speed, lifting jack propelling power, move speed, cutterhead aperture opening ratio, realize optimum digging mode; Along with hydraulic jack ground advances gradually, model lining cutting also can be followed up in time and be played supporting and be subject to the effect of disturbance country rock.
embodiment bis-:
The present embodiment and embodiment mono-are basic identical, and special feature is:
In the present embodiment, referring to Fig. 7, model lining cutting 7 outside surfaces are with cut 26.Wherein circumferentially the cut 26 of annular is equidistant distribution along model lining cutting 7, and longitudinally the cut 26 of straight line is distributed in the waist both sides of model lining cutting 7.The prefabricated model lining cutting 7 with cut simulates the Stiffness degradation impact in pipe sheet assembling process more realistically.
embodiment tri-:
The present embodiment and previous embodiment are basic identical, and special feature is:
In the present embodiment, referring to Fig. 8, on native cabin dividing plate 3, offer 12 partition board holes 4 along annular spread.Can make to be more easily constantly squeezed in soil output 14 by partition board hole 4 by well-beaten dregs, and guarantee partition board hole 4, maintain the steady operation in native cabin 5.
By reference to the accompanying drawings the utility model embodiment is illustrated above; but the utility model is not limited to above-described embodiment; the object that can also create according to utility model of the present utility model is made multiple variation; the change made under all Spirit Essences according to technical solutions of the utility model and principle, modification, substitute, combination, simplify; all should be equivalent substitute mode; as long as meet structure and aufbauprinciple for the test unit of the utility model simulation earth pressure balanced shield, EPBS work progress, all belong to protection domain of the present utility model.
Claims (7)
1. simulate a test unit for earth pressure balanced shield, EPBS work progress, comprise cutting mechanism, unearthed mechanism and propulsive mechanism, it is characterized in that:
Described cutting mechanism comprises cutterhead (1) and cutterhead rotating driving device, described cutterhead (1) is parallel with native cabin dividing plate (3), between described cutterhead (1) and native cabin dividing plate (3), be provided with native cabin (5), described cutterhead rotating driving device drives described cutterhead (1) to rotate, the front workplace of described cutterhead (1) is directly cut the soil body in front, and make the soil body being cut enter the described native cabin (5) at described cutterhead (1) rear, the back side, the cylindrical inner chamber in described native cabin (5) is by columnar model lining cutting (7), described cutterhead (1) and described native cabin dividing plate (3) enclose formation, described model lining cutting (7) inside surface tightly blocks the outer rim of described native cabin dividing plate (3) and interfixes, described cutterhead (1) rotates with respect to described model lining cutting (7), activity shutoff is carried out in described native cabin (5),
Described unearthed mechanism comprises stirring rod (2), partition board hole (4), soil output (14) and soil outlet (13), described partition board hole (4) hollow out is opened on described native cabin dividing plate (3), described stirring rod (2) is arranged in described native cabin (5), and be fixed on described cutterhead (1), the soil body stirring powder entering in described native cabin (5) is broken into dregs, constantly be squeezed in described soil output (14) by described partition board hole (4) by well-beaten dregs, described soil output (14) comprises soil output inner core (6), soil output urceolus (10), helical blade (8) and conveying rotating driving device, the leading section of described soil output urceolus (10) is fixed on described native cabin dividing plate (3), described partition board hole (4) leads to the dregs transfer passage that forms soil output between described soil output inner core (6) and described soil output urceolus (10), the dead in line of described soil output inner core (6) and described soil output urceolus (10), described helical blade (8) is separated by fixing spacing by bolt A(21) with the bolt hole A(9 offering on described soil output inner core (6)) coordinate, described helical blade (8) does not contact the inwall of described soil output urceolus (10), described conveying rotating driving device drives described soil output inner core (6) to rotate in described soil output urceolus (10), and then drive described helical blade (8) to rotate, the dregs of extruding from described partition board hole (4) is passed through rotary transfer by the described helical blade (8) that install the forward position of described soil output inner core (6), carry at rear portion to described soil output inner core (6), the lower rear of described soil output urceolus (10) has soil outlet (13), dregs is finally discharged from described soil outlet (13), described cutterhead rotating driving device and described conveying rotating driving device are merged into a rotating driving device, realized by the rotary actuation case (15) that is installed on described unearthed mechanism end, the front end of described rotary actuation case (15) is fixedly connected with the end of described soil output urceolus (10), described rotary actuation case (15) driving end is coaxially fixedly connected with described soil output inner core (6) end, the front end of soil output inner core (6) passes from the center pit of described native cabin dividing plate (3), and extend to the back side of described cutterhead (1), the front end of soil output inner core (6) is fixedly connected with described cutterhead (1), make described rotary actuation case (15) drive described cutterhead (1), described stirring rod (2) and described helical blade (8) rotate, completing described cutterhead (1) cuts and the normal casting operation of described soil output (14) the soil body in front,
Described soil output (14) is placed in model lining cutting (7), and described model lining cutting (7) is assembled by model lining segment, forms tunnel excavation support model equipment;
Described propulsive mechanism comprises lifting jack cabinet (16), counter force wall (20) directly supports described lifting jack cabinet (16) fixed pedestal, the top of the jack thrust take-off lever (17) of described lifting jack cabinet (16) promotes pushing ahead of described soil output urceolus (10) by rotariling actuate case (15) described in pushing tow, and then promote described cutting mechanism along excavation axis driving, between the described model lining cutting (7) in described rotary actuation case (15) and front thereof, be also provided with at least four pushing arms (11), the front end of each described pushing arm (11) supports the end of described model lining cutting (7), the rearward end (12) of each described pushing arm (11) is all by bolt B (23) and bolt hole B(22) be fixedly connected with rotary actuation case (15), the jack thrust take-off lever (17) of described lifting jack cabinet (16) is also by the rearward end (12) of the each described pushing arm of pushing tow (11), described model lining cutting (7) is moved forward, realize the jacking supporting automatically in time of lining segment.
2. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 1, it is characterized in that: described helical blade (8) rotates and take out of dregs, and be sent to described soil outlet (13) and locate to fall to and connect in soil box (19), described unearthed mechanism and described propulsive mechanism are all erected on cushion block base (18), described cushion block base (18) interfixes with described counter force wall (20), in the middle cut-out cushion block material of cushion block base (18), described in described soil outlet (13) the below formation of described soil output urceolus (10), connect soil box (19), dig respectively cutter squarely sliding tray (24) and circular arc sliding tray (25) connecing soil box (19) front and rear described in cushion block base (18), and described square sliding tray (24) overlaps with the axis of described circular arc sliding tray (25), formation model shield tunneling deviation correcting device, described lifting jack cabinet (16) embeds in described square sliding tray (24), described rotary actuation case (15) slides in described square sliding tray (24), described model lining cutting (7) is slided in described circular arc sliding tray (25), the each described model lining segment of described tunnel excavation support model equipment all has the smooth outer surface towards tunnel wall, coat in advance lubricant at described model lining segment outside surface.
3. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 1 and 2, is characterized in that: described model lining cutting (7) outside surface is with cut (26).
4. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 3, it is characterized in that: wherein circumferentially the described cut (26) of annular is equidistant distribution along described model lining cutting (7), longitudinally the described cut (26) of straight line is distributed in the waist both sides of described model lining cutting (7).
5. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 1 and 2, is characterized in that: on described native cabin dividing plate (3), offer 12 described partition board holes (4) along annular spread.
6. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 3, is characterized in that: on described native cabin dividing plate (3), offer 12 described partition board holes (4) along annular spread.
7. the test unit of simulation earth pressure balanced shield, EPBS work progress according to claim 4, is characterized in that: on described native cabin dividing plate (3), offer 12 described partition board holes (4) along annular spread.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104833537A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test apparatus for simulating tunnel construction |
| CN106529150A (en) * | 2016-11-03 | 2017-03-22 | 上海隧道工程有限公司 | Compound stratum shield tunnel vault load calculation method |
| CN107123359A (en) * | 2017-07-12 | 2017-09-01 | 四川汇智众创科技有限公司 | A kind of test-type shield machine Promoting Experiment platform |
| CN109141949A (en) * | 2018-08-08 | 2019-01-04 | 西南交通大学 | A kind of experimental rig of simulation shield machine driving |
| CN109281677A (en) * | 2018-11-08 | 2019-01-29 | 武汉理工大学 | Reduced scale experimental rig in a kind of shallow tunnel shield driving room |
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| CN112365785A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Servo type composite earth pressure balance micro shield device and working method |
| CN117744450A (en) * | 2024-02-08 | 2024-03-22 | 湖南大学 | Simulation method for shield tunneling process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104833537A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test apparatus for simulating tunnel construction |
| CN106529150A (en) * | 2016-11-03 | 2017-03-22 | 上海隧道工程有限公司 | Compound stratum shield tunnel vault load calculation method |
| CN106529150B (en) * | 2016-11-03 | 2018-12-11 | 上海隧道工程有限公司 | Compound stratum shield tunnel vault load calculation method |
| CN107123359A (en) * | 2017-07-12 | 2017-09-01 | 四川汇智众创科技有限公司 | A kind of test-type shield machine Promoting Experiment platform |
| CN109141949A (en) * | 2018-08-08 | 2019-01-04 | 西南交通大学 | A kind of experimental rig of simulation shield machine driving |
| CN109281677A (en) * | 2018-11-08 | 2019-01-29 | 武汉理工大学 | Reduced scale experimental rig in a kind of shallow tunnel shield driving room |
| CN110261151A (en) * | 2019-06-10 | 2019-09-20 | 石家庄铁道大学 | A kind of pipe jacking tunnel method for analog construction and model equipment |
| CN112365785A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Servo type composite earth pressure balance micro shield device and working method |
| CN117744450A (en) * | 2024-02-08 | 2024-03-22 | 湖南大学 | Simulation method for shield tunneling process |
| CN117744450B (en) * | 2024-02-08 | 2024-04-16 | 湖南大学 | Simulation method for shield tunneling process |
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