CN108548683A - Monitoring on Earth Pressure system and test method for shield model test machine - Google Patents

Monitoring on Earth Pressure system and test method for shield model test machine Download PDF

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Publication number
CN108548683A
CN108548683A CN201810246933.7A CN201810246933A CN108548683A CN 108548683 A CN108548683 A CN 108548683A CN 201810246933 A CN201810246933 A CN 201810246933A CN 108548683 A CN108548683 A CN 108548683A
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CN
China
Prior art keywords
soil
pressure sensor
soil pressure
cutterhead
cabin
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Pending
Application number
CN201810246933.7A
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Chinese (zh)
Inventor
袁大军
沈翔
吴俊�
李兴高
潘东
金大龙
高振峰
金慧
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Beijing Jiaotong University
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Beijing Jiaotong University
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Application filed by Beijing Jiaotong University filed Critical Beijing Jiaotong University
Priority to CN201810246933.7A priority Critical patent/CN108548683A/en
Publication of CN108548683A publication Critical patent/CN108548683A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/005Testing of complete machines, e.g. washing-machines or mobile phones

Abstract

The present invention provides a kind of Monitoring on Earth Pressure systems and test method for shield model test machine.The system includes:Cutterhead soil pressure sensor, muddy water cabin or soil cabin pressure sensor, shield shell soil pressure sensor, section of jurisdiction soil pressure sensor, wireless signal transmission transmitter, wireless signal receiver, data acquisition and analysis system.Soil pressure sensor is embedded on cutter head panel respectively, on shield shell muddy water cabin or soil cabin panel, shield shell surface and section of jurisdiction surface, a certain amount of sensor shares a wireless signal transmission transmitter, for emitting signal, wireless receiver is exported with current signal, current signal is converted into soil pressure force data by data collection and analysis instrument by calibration standard, so as to cutterhead in timely monitor model shield machine tunneling process, muddy water storehouse, Water And Earth Pressures at shield shell-and-tube piece, and voluntarily constitute closed feedback regulating system, slush pump working condition is controlled to ensure that model shielding machine safe and smooth can promote.

Description

Monitoring on Earth Pressure system and test method for shield model test machine
Technical field
The present invention relates to shield driving technical field more particularly to a kind of Monitoring on Earth Pressure for shield model test machine System and test method.
Background technology
As shield technique rapidly develops in China, more and more tunnel construction are tended to select shield-tunneling construction.However, The tunneling process of the hydrology and geological conditions complicated in face of these, shield is that dynamic is changeable and uncertain, and many factors all can Influence the safety of driving, it is therefore desirable to carry out indoor model test and be studied.Soil pressure in the driving experiment of shield model It monitors particularly significant, for the research correlation theories such as shield-soil interaction mechanism, needs to form mating comprehensive monitoring and controlling system System.
Currently, there are no one kind in the prior art can monitor cutterhead, shield shell, section of jurisdiction simultaneously in the driving experiment of shield model The monitoring system of pressure change, especially faces the component of this dynamic rotary of cutterhead, and wired pressure sensor can not be arranged.
Invention content
The embodiment provides a kind of Monitoring on Earth Pressure system and test method for shield model test machine, To solve problem of the prior art.
To achieve the goals above, this invention takes following technical solutions.
According to an aspect of the invention, there is provided a kind of Monitoring on Earth Pressure system for shield model test machine, institute It includes cutterhead, muddy water cabin or soil cabin, shield shell to state shield model test machine, the system comprises:
Multiple cutterhead soil pressure sensors, each cutterhead soil pressure sensor are fixedly installed in the face of cutterhead respectively On plate, for measuring the pressure value between cutterhead and soil;
Multiple wireless signal transmission transmitters, each wireless signal transmission transmitter connect one or more by circuit Cutterhead soil pressure sensor, obtains the pressure value that each cutterhead soil pressure sensor transmits, and transmitting carries each cutterhead The wireless signal of the pressure value of soil pressure sensor;
Wireless signal receiver is placed in the outside of shield model test machine, for receiving each wireless signal transmission transmitting The wireless signal of device transmitting, is converted to current signal by wireless signal, current signal is exported and gives data collection and analysis instrument;
Data collection and analysis instrument is placed in the outside of shield model test machine, will be received for passing through Data Conversion Protocol Current signal be converted into the soil pressure force data at corresponding cutterhead.
Further, the system further includes:
Multiple muddy water cabins or earth pressure of chamber sensor, each the muddy water cabin or earth pressure of chamber sensor are solid respectively On partition board of the Dingan County loaded on muddy water cabin or soil cabin, for measuring the mud hydraulic pressure numerical value in muddy water cabin or soil cabin.
Further, the system further includes:
Multiple shield shell soil pressure sensors, each shield shell soil pressure sensor are fixedly installed in the table of shield shell respectively On face, for measuring the pressure value between shield shell and soil.
Further, the system further includes:
Multiple section of jurisdiction soil pressure sensors, each section of jurisdiction soil pressure sensor are fixedly installed in shield model respectively On the surface of the section of jurisdiction of testing machine, for measuring the pressure value between section of jurisdiction and soil.
Further, the data collecting instrument wire circuit connects the shield shell soil pressure sensor, muddy water cabin or soil cabin Partition board soil pressure sensor and section of jurisdiction soil pressure sensor obtain the soil pressure at the shield shell that shield shell soil pressure sensor transmits Power numerical value obtains the soil pressure numerical value at the muddy water storehouse or soil cabin that muddy water cabin or earth pressure of chamber sensor transmissions come, obtains Soil pressure numerical value at the section of jurisdiction that section of jurisdiction soil pressure sensor transmits.
Further, the wireless signal transmitter is fixedly mounted on the outside of the main drive shaft of shield model test machine, The cutterhead soil pressure sensor is mounted on cutterhead spoke, by the signal wire of the cutterhead soil pressure sensor along hollow Muddy water cabin is passed through in main drive shaft or soil cabin is drawn, and is connected on the wireless signal transmitter.
Further, the cutterhead soil pressure sensor, muddy water cabin or earth pressure of chamber sensor, shield shell soil pressure sensing Device and section of jurisdiction soil pressure sensor are fixedly mounted on by glue on mounting hole, and the glue is sealed the mounting hole.
Further, the cutterhead soil pressure sensor, muddy water cabin or earth pressure of chamber sensor, shield shell soil pressure sensing Device and section of jurisdiction soil pressure sensor are centrosymmetric distribution.
According to another aspect of the present invention, a kind of Monitoring on Earth Pressure system for shield model test machine is provided Test method, including:
It will need cutterhead soil pressure sensor, muddy water cabin or earth pressure of chamber sensor to be mounted, shield shell soil pressure sensing Device and section of jurisdiction soil pressure sensor are fixedly mounted on glue on corresponding mounting hole;
Data collecting instrument wire circuit is connected the shield shell soil pressure sensor, muddy water cabin or soil cabin partition board soil pressure to pass Sensor and section of jurisdiction soil pressure sensor;
The wireless signal transmitter is fixedly mounted on the outside of the main drive shaft of shield model test machine, by the cutterhead Soil pressure sensor is mounted on cutterhead spoke, by the signal wire of the cutterhead soil pressure sensor along hollow main drive shaft It passes through muddy water cabin or soil cabin is drawn, be connected on the wireless signal transmitter;
The data collecting instrument obtains the soil pressure numerical value at the shield shell that shield shell soil pressure sensor transmits, and obtains mud Soil pressure numerical value at muddy water storehouse that water tank or earth pressure of chamber sensor transmissions come or soil cabin obtains section of jurisdiction soil pressure sensing Soil pressure numerical value at the section of jurisdiction that device transmits;
The wireless signal transmission transmitter obtains the pressure value that each cutterhead soil pressure sensor transmits, transmitting The wireless signal of the pressure value of each cutterhead soil pressure sensor is carried, the wireless signal receiver receives each wireless communication The wireless signal of number transmitting device transmitting, current signal is converted to by wireless signal, and current signal is exported and is acquired to data The current signal received is converted at corresponding cutterhead by analyzer, the data collection and analysis instrument by Data Conversion Protocol Soil pressure force data.
Further, the method further includes:
Muddy water pump is connected on data collection and analysis instrument, the data collection and analysis instrument at collected cutterhead Water And Earth Pressures numerical value at Water And Earth Pressures numerical value, muddy water storehouse or soil cabin is compared, if the water and soil at muddy water storehouse or soil cabin Pressure value then reduces the flow of muddy water pump higher than the Water And Earth Pressures numerical value at cutterhead;If the water and soil pressure at muddy water storehouse or soil cabin Power numerical value then increases the flow of muddy water pump less than the Water And Earth Pressures numerical value at cutterhead.
An embodiment of the present invention provides a kind of full sides it can be seen from the technical solution that embodiments of the invention described above provide The monitor control system of position, can monitor the Water And Earth Pressures data at cutterhead, muddy water storehouse, shield shell-and-tube piece in real time, really Protecting shield model test machine can tunnel safely.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is that a kind of work of Monitoring on Earth Pressure system for shield model test machine provided in an embodiment of the present invention is former Manage schematic diagram;
Fig. 2 is a kind of arrangement schematic diagram of cutterhead soil pressure sensor provided in an embodiment of the present invention;
Fig. 3 is the arrangement schematic diagram of a kind of muddy water cabin provided in an embodiment of the present invention or earth pressure of chamber sensor;
Fig. 4 is a kind of arrangement schematic diagram of shield shell soil pressure sensor provided in an embodiment of the present invention;
Fig. 5 is a kind of arrangement schematic diagram of section of jurisdiction soil pressure sensor provided in an embodiment of the present invention.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that is used in the specification of the present invention arranges It refers to there are the feature, integer, step, operation, element and/or component, but it is not excluded that presence or addition to take leave " comprising " Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein "and/or" includes any cell of one or more associated list items and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with attached drawing Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
Embodiment one
In order to solve the problems, such as that the prior art lacks the monitoring system of cutterhead, shield shell, section of jurisdiction pressure change of can monitoring simultaneously, The embodiment of the present invention provides a kind of Monitoring on Earth Pressure system for shield model test machine, so as to practical shield-soil Interaction mechanism is furtherd investigate.
Shield model test machine includes cutterhead 9 (face), muddy water cabin or soil cabin, shield shell.It is provided in an embodiment of the present invention A kind of structural schematic diagram of Monitoring on Earth Pressure system for shield model test machine is as shown in Figure 1, include:
Multiple cutterhead soil pressure sensors 1, each cutterhead soil pressure sensor 1 are fixedly installed in the panel of cutterhead respectively On, the interaction force of cutterhead and soil can be monitored, for measuring the pressure value between cutterhead and soil;Fig. 2 is implementation of the present invention A kind of arrangement schematic diagram for cutterhead soil pressure sensor that example provides.Water And Earth Pressures data at storehouse or soil cabin, shield shell-and-tube piece. The quantity of the cutterhead soil pressure sensor can be 16, and the laying mode of cutterhead soil pressure sensor can be in center pair Claim distribution.
Multiple muddy water cabins or earth pressure of chamber sensor 2, each muddy water cabin or earth pressure of chamber sensor 2 are fixed respectively to pacify On partition board loaded on muddy water cabin or soil cabin, the mud hydraulic pressure in muddy water cabin or soil cabin can measure;Fig. 3 is that the embodiment of the present invention provides A kind of muddy water cabin or earth pressure of chamber sensor arrangement schematic diagram.The quantity of muddy water cabin or earth pressure of chamber sensor can be with It it is 8, the laying mode of muddy water cabin or earth pressure of chamber sensor 2 can be centrosymmetric distribution.
Multiple shield shell soil pressure sensors 3, each shield shell soil pressure sensor 3 are fixedly installed in the surface of shield shell respectively On, the interaction force of shield shell and soil can be monitored, the pressure value between shield shell and soil is measured;Fig. 4 is that the embodiment of the present invention carries A kind of arrangement schematic diagram of the shield shell soil pressure sensor supplied.The quantity of shield shell soil pressure sensor can be 64, shield shell soil The laying mode of pressure sensor can be centrosymmetric distribution.
Multiple section of jurisdiction soil pressure sensors 4, each section of jurisdiction soil pressure sensor 4 are fixedly installed in the table of model section of jurisdiction respectively On face, the interaction force of section of jurisdiction and soil can be monitored;Fig. 5 is a kind of section of jurisdiction soil pressure sensor provided in an embodiment of the present invention Arrangement schematic diagram.The quantity of section of jurisdiction soil pressure sensor is 16, and the laying mode of section of jurisdiction soil pressure sensor can be in center It is symmetrical.
Multiple wireless signal transmission transmitters 5, each wireless signal transmission transmitter 5 connect one or more by circuit A cutterhead soil pressure sensor 1, obtains the pressure value that each cutterhead soil pressure sensor 1 transmits, and transmitting carries each The wireless signal of the pressure value of cutterhead soil pressure sensor 1;
Wireless signal receiver 6, wireless signal receiver 6 are placed in outside shield model test machine, for receiving each nothing The wireless signal that line signal transmission transmitter 5 emits, and wireless signal is converted into current signal, current signal is exported to number According to acquisition and analysis instrument 7;
Data collection and analysis instrument 7 passes through wired connection shield shell soil pressure sensor, muddy water cabin or earth pressure of chamber sensor With section of jurisdiction soil pressure sensor, the soil pressure numerical value at the shield shell that each shield shell soil pressure sensor transmits is obtained, is obtained Soil pressure numerical value at muddy water storehouse that each muddy water cabin or earth pressure of chamber sensor transmissions come or soil cabin, obtains each section of jurisdiction Soil pressure numerical value at the section of jurisdiction that soil pressure sensor transmits.
The soil pressure force data being also converted into the current signal received by Data Conversion Protocol at cutterhead.
Embodiment two
This embodiment offers a kind of test methods of the Monitoring on Earth Pressure system for shield model test machine, including with Lower step:
S1:The installation of size corresponding with cutterhead soil pressure sensor is set on the cutterhead 9 of shield model test machine Hole;In muddy water cabin or soil cabin 10, the mounting hole of size corresponding with muddy water cabin or earth pressure of chamber sensor is set;In shield shell The mounting hole of upper setting size corresponding with shield shell soil pressure sensor;Setting and section of jurisdiction soil pressure sensor phase on section of jurisdiction The mounting hole of corresponding size.
S2:It will need cutterhead soil pressure sensor 1, muddy water cabin or earth pressure of chamber sensor 2 to be mounted, shield shell soil pressure Sensor 3 and/or section of jurisdiction soil pressure sensor are classified according to installation site, size, and are carried out to pressure sensor Number.By cutterhead soil pressure sensor 1, muddy water cabin or earth pressure of chamber sensor 2, shield shell soil pressure sensor 3 and/or section of jurisdiction Soil pressure sensor is mounted on the solid special glue of peace on corresponding mounting hole, and such glue, which can guarantee, is equipped with soil pressure sensor Mounting hole sealing, the impurity such as high hydraulic pressure Xia Shui, soil cannot enter testing machine inside.
Those skilled in the art will be understood that the mounting means of above-mentioned each soil pressure sensor is only for example, other are existing Or the mounting means of soil pressure sensor that is likely to occur from now on be such as applicable to the embodiment of the present invention, should also be included in this hair Within bright protection domain, and it is incorporated herein by reference herein.
S3:The directly wired company of soil pressure sensor that shield shell, muddy water cabin or soil cabin partition board and model pipe on piece are installed Connect the data collecting instrument outside shield model test machine.Above-mentioned soil pressure sensor can be soil pressure cell.
S4:Wireless signal receiver 6 is placed in the outside of shield model test machine, for receiving wireless signal, and will be wireless After signal is converted to current signal, export to data collection and analysis instrument 7;
S5:Wireless signal transmitter 6 is fixedly secured on the outside of the main drive shaft of shield model test machine, and will be mounted on The signal wire of cutterhead soil pressure sensor on cutterhead spoke passes through muddy water cabin along hollow main drive shaft or soil cabin is drawn, and It is connected on wireless signal transmitter 6;
S6:Wireless signal receiver 6 is connected into data collection and analysis instrument 7,
Wireless signal transmission transmitter obtains the pressure value that each cutterhead soil pressure sensor transmits, and transmitting carries The wireless signal of the pressure value of each cutterhead soil pressure sensor, the wireless signal receiver receive each wireless signal and pass The wireless signal of defeated transmitter transmitting, the unified conversion of wireless signal that pressure value will be carried by zigBee Pro procotols At the micro current signal of 0-5mA, current signal to be exported and gives data collection and analysis instrument, the data collection and analysis instrument passes through more Micro current signal, is converted to the soil pressure force data at cutterhead by grade field calibration.According to obtained soil pressure force data to entirely supervising Examining system is debugged.
During the experiment, the power that the pressure sensor at each position can be applied to 1kN, detects the pressure signal of output It is whether correct, and record the number that data have abnormal pressure sensor.
S7:Muddy water pump is connected on data collection and analysis instrument, by data collection and analysis instrument to the collected cutterhead of institute Water And Earth Pressures numerical value, Water And Earth Pressures numerical value at muddy water storehouse or soil cabin be compared, then feedback adjustment muddy water pump Working condition.If the Water And Earth Pressures numerical value at muddy water storehouse or soil cabin reduces muddy water pump higher than the Water And Earth Pressures numerical value at cutterhead Flow;If the Water And Earth Pressures numerical value at muddy water storehouse or soil cabin increases muddy water pump less than the Water And Earth Pressures numerical value at cutterhead Flow.To ensure that muddy water storehouse pressure keeps dynamic equilibrium with cutterhead pressure, so that it is guaranteed that shield model test machine can be safe Driving.
In conclusion an embodiment of the present invention provides a kind of Monitoring on Earth Pressure systems of comprehensive shield model test machine System, can monitor the Water And Earth Pressures data at cutterhead, muddy water storehouse, shield shell-and-tube piece in real time.Simultaneously by data acquisition point The working condition of analyzer feedback control muddy water pump, voluntarily constitutes closed feedback regulating system, muddy water pump work state is controlled, with this Ensure that muddy water storehouse pressure keeps dynamic equilibrium with area surface pressure, so that it is guaranteed that shield model test machine can tunnel safely, at Work(solves the difficulty of the soil pressure cell data transmission on cutterhead, realizes the comprehensive prison to shield-soil interaction power It surveys, having widened the driving experiment of shield model can research range.
One of ordinary skill in the art will appreciate that:Attached drawing is the schematic diagram of one embodiment, module in attached drawing or Flow is not necessarily implemented necessary to the present invention.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device or For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct The unit that separating component illustrates may or may not be physically separated, the component shown as unit can be or Person may not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can root According to actual need that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill Personnel are without creative efforts, you can to understand and implement.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims Subject to.

Claims (10)

1. a kind of Monitoring on Earth Pressure system for shield model test machine, the shield model test machine includes cutterhead, muddy water Cabin or soil cabin, shield shell, which is characterized in that the system comprises:
Multiple cutterhead soil pressure sensors, each cutterhead soil pressure sensor are fixedly installed in the panel of cutterhead respectively On, for measuring the pressure value between cutterhead and soil;
Multiple wireless signal transmission transmitters, each wireless signal transmission transmitter connect one or more cutterhead by circuit Soil pressure sensor, obtains the pressure value that each cutterhead soil pressure sensor transmits, and transmitting carries each cutterhead soil pressure The wireless signal of the pressure value of force snesor;
Wireless signal receiver is placed in the outside of shield model test machine, for receiving each wireless signal transmission transmitter hair Wireless signal is converted to current signal by the wireless signal penetrated, and current signal is exported and gives data collection and analysis instrument;
Data collection and analysis instrument is placed in the outside of shield model test machine, the electricity for will be received by Data Conversion Protocol Stream signal is converted into the soil pressure force data at corresponding cutterhead.
2. system according to claim 1, which is characterized in that the system further includes:
Multiple muddy water cabins or earth pressure of chamber sensor, each the muddy water cabin or earth pressure of chamber sensor are fixed respectively to pacify On partition board loaded on muddy water cabin or soil cabin, for measuring the mud hydraulic pressure numerical value in muddy water cabin or soil cabin.
3. system according to claim 2, which is characterized in that the system further includes:
Multiple shield shell soil pressure sensors, each shield shell soil pressure sensor are fixedly installed in the surface of shield shell respectively On, for measuring the pressure value between shield shell and soil.
4. system according to claim 3, which is characterized in that the system further includes:
Multiple section of jurisdiction soil pressure sensors, each section of jurisdiction soil pressure sensor are fixedly installed in shield model test respectively On the surface of the section of jurisdiction of machine, for measuring the pressure value between section of jurisdiction and soil.
5. system according to claim 4, which is characterized in that the data collecting instrument wire circuit connects the shield shell soil Pressure sensor, muddy water cabin or soil cabin partition board soil pressure sensor and section of jurisdiction soil pressure sensor obtain shield shell soil pressure sensing The soil pressure numerical value at shield shell that device transmits, obtain muddy water storehouse that muddy water cabin or earth pressure of chamber sensor transmissions come or Soil pressure numerical value at soil cabin obtains the soil pressure numerical value at the section of jurisdiction that section of jurisdiction soil pressure sensor transmits.
6. system according to claim 5, which is characterized in that the wireless signal transmitter is fixedly mounted on shield mould On the outside of the main drive shaft of type testing machine, the cutterhead soil pressure sensor is mounted on cutterhead spoke, by the cutterhead soil pressure The signal wire of force snesor passes through muddy water cabin along hollow main drive shaft or soil cabin is drawn, and is connected to the wireless signal transmission On device.
7. system according to claim 4, which is characterized in that the cutterhead soil pressure sensor, muddy water cabin or soil cabin soil Pressure sensor, shield shell soil pressure sensor and section of jurisdiction soil pressure sensor are fixedly mounted on by glue on mounting hole, described Glue is sealed the mounting hole.
8. system according to claim 7, which is characterized in that the cutterhead soil pressure sensor, muddy water cabin or soil cabin soil Pressure sensor, shield shell soil pressure sensor and section of jurisdiction soil pressure sensor are centrosymmetric distribution.
9. a kind of experiment side of claim 1 to 8 any one of them for the Monitoring on Earth Pressure system of shield model test machine Method, which is characterized in that including:
To need cutterhead soil pressure sensor, muddy water cabin or earth pressure of chamber sensor to be mounted, shield shell soil pressure sensor and Section of jurisdiction soil pressure sensor is fixedly mounted on glue on corresponding mounting hole;
Data collecting instrument wire circuit is connected into the shield shell soil pressure sensor, muddy water cabin or soil cabin partition board soil pressure sensor With section of jurisdiction soil pressure sensor;
The wireless signal transmitter is fixedly mounted on the outside of the main drive shaft of shield model test machine, by the cutterhead soil pressure Force snesor is mounted on cutterhead spoke, and the signal wire of the cutterhead soil pressure sensor is passed through along hollow main drive shaft Muddy water cabin or soil cabin are drawn, and are connected on the wireless signal transmitter;
The data collecting instrument obtains the soil pressure numerical value at the shield shell that shield shell soil pressure sensor transmits, and obtains muddy water cabin Or the soil pressure numerical value at the muddy water storehouse that comes of earth pressure of chamber sensor transmissions or soil cabin, it obtains section of jurisdiction soil pressure sensor and passes Soil pressure numerical value at the defeated section of jurisdiction to come;
The wireless signal transmission transmitter obtains the pressure value that each cutterhead soil pressure sensor transmits, and transmitting carries The wireless signal of the pressure value of each cutterhead soil pressure sensor, the wireless signal receiver receive each wireless signal and pass The wireless signal of defeated transmitter transmitting, is converted to current signal by wireless signal, current signal is exported to data collection and analysis The current signal received is converted into the soil at corresponding cutterhead by Data Conversion Protocol by instrument, the data collection and analysis instrument Pressure data.
10. according to the method described in claim 9, it is characterized in that, the method further includes:
Muddy water pump is connected on data collection and analysis instrument, the data collection and analysis instrument to water and soil at collected cutterhead Water And Earth Pressures numerical value at pressure value, muddy water storehouse or soil cabin is compared, if the Water And Earth Pressures at muddy water storehouse or soil cabin Numerical value then reduces the flow of muddy water pump higher than the Water And Earth Pressures numerical value at cutterhead;If the Water And Earth Pressures number at muddy water storehouse or soil cabin Value then increases the flow of muddy water pump less than the Water And Earth Pressures numerical value at cutterhead.
CN201810246933.7A 2018-03-23 2018-03-23 Monitoring on Earth Pressure system and test method for shield model test machine Pending CN108548683A (en)

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CN110346161A (en) * 2019-07-16 2019-10-18 东北大学 A kind of balancing earth-pressure shielding machine optimized experimental facility and its application method
CN110656940A (en) * 2019-09-30 2020-01-07 中国铁建重工集团股份有限公司 Shaft heading machine and main drive sealing system thereof

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