CN107218052A - A kind of shield machine tunnels soil analysis system - Google Patents
A kind of shield machine tunnels soil analysis system Download PDFInfo
- Publication number
- CN107218052A CN107218052A CN201710568247.7A CN201710568247A CN107218052A CN 107218052 A CN107218052 A CN 107218052A CN 201710568247 A CN201710568247 A CN 201710568247A CN 107218052 A CN107218052 A CN 107218052A
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- Prior art keywords
- plc
- soil
- station plc
- soil pressure
- analysis system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004856 soil analysis Methods 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 8
- 230000005641 tunneling Effects 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 101100190618 Arabidopsis thaliana PLC3 gene Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 101100190617 Arabidopsis thaliana PLC2 gene Proteins 0.000 description 1
- 101100408456 Arabidopsis thaliana PLC8 gene Proteins 0.000 description 1
- 101100464304 Caenorhabditis elegans plk-3 gene Proteins 0.000 description 1
- 101100093534 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RPS1B gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012533 medium component Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to field of intelligent control technology, in particular a kind of shield machine driving soil analysis system, including man-machine interface, PLC, Tu Cang, conveying worm, the PLC includes control station PLC, work station PLC, the man-machine interface connects control station PLC by Ethernet, the Tu Cang connections dumping plough screw conveyer, the control station PLC passes through MELSCNET network connection work stations PLC, the work station PLC connects soil pressure case by fuzzy controller, the soil pressure case is installed on Tu Cang using compression type structure, the soil pressure case is connected to variable displacement motor, the system has fast response time, strong antijamming capability, soil pressure control effect is good, it is simple to operate, the characteristics of centralized management.
Description
Technical field
The present invention relates to field of intelligent control technology, specially a kind of shield machine driving soil analysis system.
Background technology
Shield driving is a complicated process, and being related to many set drivings and control system and multiple parameters, these are key
Boring parameter between there is closely contact and interact, joint effect shield driving efficiency.Wherein, support pressure
Belong to indirect control parameter, mainly controlled by adjusting fltting speed and conveying worm casting speed coordination into soil discharge quantity come real
It is existing, and other specification can be directly controlled by by drive system.In addition, should set corresponding in the case of different soil properties
Promote and cutting parameter.
It is the main reason of the catastrophic failures such as surface subsidence generation that support pressure is unbalance, and native storehouse earth pressure balance is by storehouse
The influence of the factors such as multiphase medium component, driving and deslagging speed, this to constitute the pick of native storehouse earth pressure balance system into and out of
The Dynamic coordinated control of multiple subsystems such as soil, correction is extremely difficult, and earth pressure balance technology is passed through in shield tunneling process
Adjustment Tu Cang enters soil amount and soil discharge quantity matching relationship realizes Pressure behaviour poised state, from the key technology for reducing ground settlement,
And ensure that excavation face is stable.In tunneling process shield by propelling cylinder thrust pressurization produce soil pressure, and by be cut soil and
Cutterhead acts on whole excavation face, the effect of soil layer environment is offset, while by adjusting tunneling control system and shield driving amount
It is adapted to maintain the balance of spoil amount and soil discharge quantity so that soil pressure is stable within a predetermined range in native storehouse.
Earth pressure balance system is by soil property, the time-varying of hydraulic system and non-linear factor, shield driving in mining process
The influence of speed and helical feed dumper efficiency, soil pressure setting value and actual soil pressure value have unstable deviation, thus
Ground settlement and excavation face avalanche etc. may be brought potential dangerous.Therefore, by setting up the driving soil analysis of shield system
System, it is significant so as to improve drivage efficiency for further optimization tunneling process to improve the construction quality of shield,
And the motor type shield system of traditional earth pressure balance system is because motor driving pressure is with the load that conveying worm drives
Become, therefore, pressure chamber characteristic influences larger to soil pressure control characteristic, and system response is slower, and its dynamic characteristic is difficult to full sometimes
Sufficient engine request.
The content of the invention
Soil analysis system is tunneled it is an object of the invention to provide a kind of shield machine, to solve to carry in above-mentioned background technology
The problem of going out.The shield machine driving soil analysis system has fast response time, strong antijamming capability, soil pressure control effect
It is good, simple to operate, centralized management the characteristics of.
To achieve the above object, the present invention provides following technical scheme：
A kind of shield machine tunnels soil analysis system, including man-machine interface, PLC, Tu Cang, conveying worm, the PLC bags
Control station PLC, work station PLC are included, the man-machine interface connects control station PLC, the Tu Cang connections dumping plough by Ethernet
Screw conveyer, the control station PLC passes through fuzzy by MELSCNET network connection work stations PLC, the work station PLC
PID controller connects soil pressure case, and the soil pressure case is installed on Tu Cang, the soil pressure case using compression type structure
It is connected to variable displacement motor.
It is preferred that, the variable displacement motor provides oil sources by variable pump and accumulator.
It is preferred that, the soil pressure case is fed through work station PLC by transmitter inverted signal.
It is preferred that, the fuzzy controller uses UDC3500 fuzzy controllers, the fuzzy-adaptation PID control utensil
There are 3 analog input channels, 2 circuit controls and 5 railway digital amounts and analog output.
It is preferred that, the man-machine interface includes touch-screen, and the pressure sensor range is 0.6MPa-5.0MPa, output letter
Number be 0-10VDC.
Compared with prior art, the beneficial effects of the invention are as follows：The system provides constant pressure by constant pressure variable displacement pump and accumulator
Oil sources, by the discharge capacity of regulated variable motor, come the rotating speed i.e. soil discharge quantity of the conveying worm that changes fluid motor-driven, so that
The soil pressure in native storehouse is controlled, and variable displacement motor driving pressure is set up by constant pressure oil source, is not become with load, pressure chamber effect shadow
Sound is smaller, therefore fast response time, strong antijamming capability.The system using fuzzy controller carry out real-time optimization reach compared with
For preferable control effect, and MELSECNET network optimization external cablings are utilized, good man-machine boundary is used as using touch-screen
Face, convenient graphical interfaces makes simple to operate understandable, and MELSECNET networks are connected work station PLC by coaxial cable,
Reduce wiring, high dissipate to control, the purpose of the expansion, centralized management, Centralized Monitoring of input and output point is thus reached, by control station PLC
Control instruction is sent, the closed-loop control to soil pressure is completed by hydraulic actuating mechanism, whole operation process is in man-machine interface
Touch-screen can be completed, and simplify operating process, it also avoid the maloperation of operator.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is that man-machine interface of the present invention passes through control station PLC and work station PLC connection diagrams.
In figure：Man-machine interface 1, control station PLC 2, work station PLC3, MELSCNET network 4, fuzzy controller 5, soil
Pressure sensor 6, native storehouse 7, transmitter 8, variable displacement motor 9, conveying worm 10, variable pump 11, accumulator 12.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1~2 are referred to, the present invention provides a kind of technical scheme：
A kind of shield machine tunnels soil analysis system, including man-machine interface 1, PLC, native storehouse 7, conveying worm 10, described
PLC includes control station PLC2, work station PLC 3, and the man-machine interface 1 connects control station PLC 2, the Tu Cang by Ethernet
7 connection dumping plough screw conveyers 10, the control station PLC 2 connects work station PLC 3, institute by MELSCNET networks 4
State work station PLC 3 and soil pressure case 6 is connected by fuzzy controller 5, the soil pressure case 6 uses compression type structure
Native storehouse 7 is installed on, the soil pressure case 6 is connected to variable displacement motor 9；The variable displacement motor 9 is by variable pump 11 and accumulator 12
Oil sources is provided；The soil pressure case 6 is fed through work station PLC3 by the inverted signal of transmitter 8；The fuzzy controller
5 use UDC3500 fuzzy controllers, and the fuzzy controller 5 has 3 analog input channels, 2 circuit controls
With 5 railway digital amounts and analog output；The man-machine interface 1 includes touch-screen, and the range of pressure sensor 6 is 0.6MPa-
5.0MPa, output signal is 0-10VDC.
Shield system composition of the system based on constant pressure network, constant pressure oil is provided by constant pressure variable displacement pump 11 and accumulator 12
Source, when the native soil pressure of storehouse 7 changes, computer is by the discharge capacity of regulated variable motor 9, to change the spiral shell of fluid motor-driven
The rotating speed for revolving conveyer 10 is soil discharge quantity, so as to control the soil pressure in native storehouse 7；During Braking system, variable displacement motor 9 is converted to pump work
Condition, in the case where the inertia of conveying worm 10 drives to the feedback pressure oil of accumulator 12, reaches the purpose of energy regenerating, braking energy
Available for further accelerating.System line pressures loss is smaller, and efficiency is higher, and the driving pressure of variable displacement motor 9 is set up by constant pressure oil source,
Do not become with load, pressure chamber effects are smaller, therefore fast response time, strong antijamming capability.
In Practical Project, because the speed of shield driving is influenceed by the geology on construction stratum, change shield driving speed
There is certain limitation and uncertainty in the control mode of degree adjustment soil pressure, therefore the system uses and changes 10 turns of conveying worm
Speed progress soil pressure regulation, the spatial transition that the native storehouse 7 enters before conveying worm 10 is discharged for the soil body under knife cutting,
Soil in four stirring rod stirring that the soil body in cutterhead rotation process in native storehouse 7 is ceaselessly welded in native storehouse 7, whipping process
Storehouse 7 sprays into foam and bentonite etc. close to the side of middle shield, on the one hand ensures the plastic fluidity of the stirring soil body, on the other hand
The water penetration of the soil body is set to lower, so as to keep the pressure balance of excavation face.
Control station PLC 2 is arranged in operating room, is completed the primary control tasks of shield machine, is utilized MELSECNET networks 4
Acquisition workstation PLC 3 field data, organizational controls flow and completion control algolithm, implement the control to target, work station
Collection and the object control of field data are realized in the order that PLC 3 receives control station PLC 2；The native inside of storehouse 7 is equipped with soil pressure sensing
Device 6 to monitor tunneling process in real time, and the native both sides of storehouse 7 set a connection jaws respectively, and sensor cable enters the case that buries by connection jaws
In inside, the control room of collection site information transmission to ground；For the soil pressure case 6 of the native position of storehouse 7, due to dregs composition
Complexity and the possibility that exists of hard stone, compression type structures are used for ease of handling, for the soil pressure of slip casting position
Sensor 6, because raw material composition is consistent and substantially without hard material, can be installed using screw-type or compression type.
The system uses self-adaptive PID controller, continues to use original soil pressure case 6 as detecting element, will control spiral
The proportioning valve of conveyer 10 optimizes external cabling as executing agency, and using MELSECNET networks 4, by the use of touch-screen as
Good man-machine interface, convenient graphical interfaces makes operation, is easily understood；Wherein, self-adaptive PID controller uses fuzzy
Controller 5, i.e., using fuzzy logic algorithm and according to certain fuzzy mathematics rule to the ratio of PID control, integration, differential system
Number carries out real-time optimization, to reach ideal control effect；The computer of man-machine interface 1 is according to set input and feedback
Signal, calculates physical location and the deviation and current change of error of theoretical position, and carry out fuzzy push away according to fuzzy rule
Survey, ambiguity solution, the ratio of output PID controller, integration, differential coefficient are finally carried out to fuzzy parameter.The fuzzy-adaptation PID control
Device 5 is using UDC3500 fuzzy controllers 5, with 3 analog input channels, 2 circuit controls and the number no more than 5 tunnels
Word amount and analog output.
Fuzzy-adaptation PID control is due to each portion such as proportional pressure control valve of soil pressure sensor 6 and hydraulic actuating mechanism in system
Part distribution relatively dissipates, and adheres to different control PLCs separately and is controlled, in order to reduce wiring, collecting and distributing control, the system uses MELSECNET
Network 4, MELSECNET networks 4 are a kind of high speed, highly reliable data communication network, and it is by coaxial cable by work station PLC
3 connect, and thus reach the system of the purpose of the expansion, centralized management, Centralized Monitoring of input and output point.
6 pairs of actual soil pressures in native storehouse 7 of soil pressure case are sampled, and are changed into 4-20mA standard restricting the numbers by transmitter 8, are sent
Enter control station PLC 2；Set soil pressure touch-screen of man-machine interface 1 in operating room to input, together with actual soil pressure, pass through
MELSECNET looped networks are sent to first job station PLC 3, are exported through PID arithmetic by D/A modules to fuzzy controller 5,
Control signal after the computing of fuzzy controller 5 is received by second work station PLC 3 A/D modules again, and passes control back
Stood PLC 2, and sends control instruction by control station PLC 2, and the closed-loop control to soil pressure is completed by hydraulic actuating mechanism.It is whole
Individual operating process can be completed on the touch-screen of man-machine interface 1, simplify operating process, it also avoid the mistake behaviour of operator
Make.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of shield machine tunnels soil analysis system, including man-machine interface (1), PLC, Tu Cang (7), conveying worm (10),
The PLC includes control station PLC (2), work station PLC (3), and the man-machine interface (1) connects control station PLC by Ethernet
(2), Tu Cang (7) the connection dumping plough screw conveyer (10), it is characterised in that the control station PLC (2) passes through
MELSCNET networks (4) connection work station PLC (3), the work station PLC (3) connects soil pressure by fuzzy controller (5)
Sensor (6), the soil pressure case (6) is installed on Tu Cang (7), soil pressure case (6) connection using compression type structure
To variable displacement motor (9).
2. a kind of shield machine driving soil analysis system according to claim 1, it is characterised in that：The variable displacement motor
(9) oil sources is provided by variable pump (11) and accumulator (12).
3. a kind of shield machine driving soil analysis system according to claim 1, it is characterised in that：The soil pressure case
(6) work station PLC (3) is fed through by transmitter (8) inverted signal.
4. a kind of shield machine driving soil analysis system according to claim 1, it is characterised in that：The fuzzy control
Device (5) processed uses UDC3500 fuzzy controllers, the fuzzy controller (5) have 3 analog input channels, 2
Circuit controls and 5 railway digital amounts and analog output.
5. a kind of shield machine driving soil analysis system according to claim 1, it is characterised in that：The man-machine interface
(1) touch-screen is included, pressure sensor (6) range is 0.6MPa-5.0MPa, and output signal is 0-10VDC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568247.7A CN107218052A (en) | 2017-07-13 | 2017-07-13 | A kind of shield machine tunnels soil analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568247.7A CN107218052A (en) | 2017-07-13 | 2017-07-13 | A kind of shield machine tunnels soil analysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218052A true CN107218052A (en) | 2017-09-29 |
Family
ID=59952408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710568247.7A Pending CN107218052A (en) | 2017-07-13 | 2017-07-13 | A kind of shield machine tunnels soil analysis system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107218052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798692A (en) * | 2018-06-12 | 2018-11-13 | 上海隧道工程有限公司 | The automatic attitude rectification system of shield machine and modification method |
| CN113847049A (en) * | 2021-10-13 | 2021-12-28 | 中交天和机械设备制造有限公司 | Earth pressure intelligent control system of earth pressure balance shield machine |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798692A (en) * | 2018-06-12 | 2018-11-13 | 上海隧道工程有限公司 | The automatic attitude rectification system of shield machine and modification method |
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| CN113847049A (en) * | 2021-10-13 | 2021-12-28 | 中交天和机械设备制造有限公司 | Earth pressure intelligent control system of earth pressure balance shield machine |
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Application publication date: 20170929 |