CN109781238A - The monitoring method of full face rock tunnel boring machine support cylinder junction Vibration Condition - Google Patents
The monitoring method of full face rock tunnel boring machine support cylinder junction Vibration Condition Download PDFInfo
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- CN109781238A CN109781238A CN201910162608.7A CN201910162608A CN109781238A CN 109781238 A CN109781238 A CN 109781238A CN 201910162608 A CN201910162608 A CN 201910162608A CN 109781238 A CN109781238 A CN 109781238A
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- support cylinder
- oil cylinder
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- vibration
- cutter head
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Abstract
The present invention provides a kind of monitoring methods of full face rock tunnel boring machine support cylinder junction Vibration Condition, belong to full face rock tunnel boring machine underground construction real time monitoring field.The rational deployment of vibration measuring point has been carried out to cutter head support oil cylinder junction, and monitoring data are obtained using vibrating sensor and its wireless system for transmitting data, and indirect predictions model is proposed to set carry out indirect predictions to difficult location, and then realization is to the long term monitoring and prediction of TBM cutter disc system support cylinder junction Vibration Condition, and it timely feedbacks to operator, prevent the generation of burst accident, it is ensured that TBM safely and reliably works.
Description
Technical field
The present invention relates to a kind of monitoring methods of full face rock tunnel boring machine cutter head support oil cylinder junction Vibration Condition, belong to
In full face rock tunnel boring machine underground construction real time monitoring field.
Background technique
(abbreviation TBM) is equipped in full advance, is the Large Underground heading equipment for integrating multiple systems, it is answered at present
It is very extensive with range.Since TBM tunnels bad environments, and the multiple spot shock loading generated when broken rock, this will lead to TBM production
Raw more strong vibration, therefore the influence for retaining portion is also biggish, and because retaining portion is with oil cylinder and shield
Support is realized in shield connection, but often causes flutter failure to support cylinder junction under violent vibration, therefore to TBM cutterhead
The monitoring of support cylinder junction Vibration Condition is very important.
TBM host system mainly includes the key positions such as cutter disc system, shield, girder (shown in Fig. 1), supports liquid oil cylinder master
It is responsible for the support work of cutter disc system (such as Fig. 1 a) Yu shield (such as Fig. 1 b), but severe load-up condition often results in TBM knife
Disc system high vibration, which increases the vibrations at support cylinder, in order to guarantee that driving normally carries out, it is necessary to grasp TBM
The Vibration Condition of the junction cutter disc system support cylinder (such as Fig. 2 a), it is established that real-time monitoring system supervises its Vibration Condition
It surveys, this can remind engineering construction personnel timely to be overhauled, and avoid further destroying, it is ensured that the reliability of TBM driving.
It is less to the opposite research of the vibration monitoring scheme of TBM cutter disc system support cylinder junction both at home and abroad at present.And
Since cutter disc system working environment is complicated and changeable, the arrangement for carrying out measuring point is also more troublesome.Though there are also scholars to do centainly
Research, but be also to be measured using arbitrary home, therefore there is certain limitation, one-sidedness and biggish
Error.
Based on the above circumstances, the present invention has carried out the safety layout that measuring point has been carried out at cutter disc system support cylinder, mentions
Support cylinder junction point layout model is gone out, the reasonably optimizing layout by vibrating measuring point supports cutter disc system to realize
The reasonable monitoring of oil cylinder junction.In addition, due to the limitation of the test space at the support cylinder of the upper side and lower side, to sensor
Obtained data can carry out the reckoning and prediction of Vibration Condition using the model.
Summary of the invention
The purpose of the present invention is to provide a kind of vibrations of full face rock tunnel boring machine cutter disc system support cylinder junction
Monitoring method obtains monitoring data using vibrating sensor and its wireless system for transmitting data, realizes and support to TBM cutter disc system
The long term monitoring of oil cylinder junction Vibration Condition, and timely feedback the generation that burst accident is prevented to operator, it is ensured that TBM
Safely and reliably work.
The technical solution adopted by the present invention
Technical solution of the present invention:
A kind of monitoring method of full face rock tunnel boring machine support cylinder junction Vibration Condition, tunneling boring rock used
The monitoring system of development machine cutter head support oil cylinder junction Vibration Condition, it is wireless comprising the sensor for measuring vibration, receiving
The radio network gateway of signal, computer, cutter head support oil cylinder junction point layout method and the indirect predictions for showing measurement data
Model；The vibration shape in the operational process of corresponding position is monitored by being arranged in the sensor of cutter head support oil cylinder join domain
State, while transmission vibration data is received based on wireless network protocol, it realizes to Vibration Condition at TBM cutter disc system support cylinder
Real-time monitoring and prediction；
(1) cutter head support oil cylinder junction point layout method
Mainly for the cutter head support oil cylinder junction vibration state of full face rock tunnel boring machine (TBM), in order to make to sense
Device can work with security and stability in TBM motion process, and can reflect the case where vibration to greatest extent, the cutterhead branch of proposition
Oil cylinder junction point layout model is supportted, model is specific as follows:
(1.1) at the support cylinder of upside: since the lower end of upper support cylinder is wrapped inside shield body, by vibrating sensor section
Point is arranged at the position of 200~400mm of girder connecting flange on rear side of shield body (such as Fig. 3)；
(1.2) at left and right sides support cylinder: in order to not influence the folding of shield and stretching for oil cylinder, by vibrating sensor
Node is arranged at the position apart from left and right side support cylinder upper end 50~100mm of junction (such as Fig. 4) nearby；
(1.3) at the support cylinder of downside: since arrangement space is narrow and in order not to interfere the flexible of oil cylinder, vibration being passed
Sensor point layout is at the position apart from upper 150~300mm of junction of lower support cylinder (such as Fig. 5)；
(2) indirect predictions model
For being difficult to the position (such as support cylinder of the upper side and lower side) of placement sensor at support cylinder, work as sensor
Position is more than certain distance, and measurement error will be present, therefore proposes indirect predictions model in view of the above problems (as schemed
6), concrete model is as follows:
In formula:
A0 is position amplitude to be predicted；
Ai is the amplitude for installing point position；
ε is correction factor, 1.1~1.5, increase with the increase of β；
μ is coefficient of region, 1.0~1.25, increase with the increase of H；
β is region division distance；
H is distance of the measuring point apart from point to be predicted；
Specification of a model:
(2.1) data of corresponding position are obtained after arranging measuring point by cutter head support oil cylinder junction point layout method
After, H is divided with region division distance beta, and determine the value of ε and β with this；
(2.2) β is exactly to divide the distance between layer Li.
Beneficial effects of the present invention: full face rock tunnel boring machine cutter head support oil cylinder junction proposed by the present invention vibrates feelings
The monitoring method of condition realizes the reasonable arrangement of the vibration measuring point to support cylinder junction, and carries out difficult survey with data measured
The prediction of position, and then the Vibration Condition of junction is timely fed back into operator, prevent support system burst accident
It generates, it is ensured that TBM safely and reliably works.
Detailed description of the invention
Fig. 1 is TBM overall pattern.
Fig. 2 is cutter disc system support cylinder position view.
Fig. 3 is upside support cylinder vibration measuring point installation diagram.
Fig. 4 is left and right side support cylinder vibration measuring point installation diagram.
Fig. 5 is downside support cylinder vibration measuring point installation diagram.
Fig. 6 is indirect predictions illustraton of model.
In figure: 1a cutter disc system；1b supports shield body；1c girder；1d supporting boot；
Support cylinder on the upside of 2a；2b left and right side support cylinder；Support cylinder on the downside of 2c
3a, 4a, 5a vibrating sensor measuring point；Support cylinder on the upside of 3b；4b left and right side support cylinder；Support on the downside of 5b
Oil cylinder；O is position to be predicted；A, B, C are Sensor position；L1、L2、L3For area limit line.
Specific embodiment
With reference to the accompanying drawing and the technical solution specific embodiment that the present invention will be described in detail.
A kind of monitoring method of full face rock tunnel boring machine cutter head support oil cylinder junction Vibration Condition, tunneling boring used
The monitoring system of rock ripper cutter head support oil cylinder junction Vibration Condition includes the sensor for measuring vibration, receiving
The radio network gateway of wireless signal, the computer for showing measurement data, cutter head support oil cylinder junction point layout method and indirectly
Prediction model；The vibration in the operational process of corresponding position is monitored by being arranged in the sensor of cutter head support oil cylinder join domain
State, while transmission vibration data is received based on wireless network protocol, it realizes to Vibration Condition at TBM cutter disc system support cylinder
Real-time monitoring and prediction；For the above side support cylinder.
Firstly, carrying out the arrangement of measuring point according to cutter head support oil cylinder junction point layout method:
At the support cylinder of upside, since the lower end of upper support cylinder is wrapped inside shield body, by vibrating sensor section
Point, which is arranged within the scope of the girder connecting flange 300mm on rear side of shield body, arranges upper vibrating sensor node；
Then, it is powered by battery, collected vibration signal generates when working through antenna transmission to radio network gateway, TBM
Real-time vibration and strain signal can be shown on the computer of TBM host service function room, and generate the working day of TBM
Will.If the measuring point data obtained after the arrangement of upside are as follows: Ai=2mm, β=150mm, H=300mm, ε=1.2, μ=1.1, root
It is calculated according to indirect predictions model as follows:
Therefore can extrapolate physical location to obtain vibration amplitude by indirect predictions model is 4.7158mm.
Claims (1)
1. a kind of monitoring method of full face rock tunnel boring machine support cylinder junction Vibration Condition, tunneling boring rock pick used
Into the monitoring system of machine knife disk support cylinder junction Vibration Condition, comprising for measuring the sensor vibrated, receiving wireless communication
Number radio network gateway, show measurement data computer, cutter head support oil cylinder junction point layout method and indirect predictions mould
Type；The vibrational state in the operational process of corresponding position is monitored by being arranged in the sensor of cutter head support oil cylinder join domain,
Transmission vibration data is received based on wireless network protocol simultaneously, realizes the reality to Vibration Condition at TBM cutter disc system support cylinder
When monitor and prediction；It is characterized in that,
(1) cutter head support oil cylinder junction point layout method
Mainly for the cutter head support oil cylinder junction vibration state of full face rock tunnel boring machine, in order to transport sensor in TBM
It can work with security and stability during dynamic, and the case where vibration can be reflected to greatest extent, the cutter head support oil cylinder of proposition connects
Place's point layout model is connect, model is specific as follows:
(1.1) at the support cylinder of upside: since the lower end of upper support cylinder is wrapped inside shield body, by vibrating sensor node cloth
It is placed at the position of 200~400mm of girder connecting flange on rear side of shield body；
(1.2) at left and right sides support cylinder: in order to not influence the folding of shield and stretching for oil cylinder, by vibrating sensor node
It is arranged at the position apart from left and right side support cylinder upper end 50~100mm of junction nearby；
(1.3) at the support cylinder of downside: since arrangement space is narrow and in order not to interfere the flexible of oil cylinder, by vibrating sensor
Point layout is at the position apart from upper 150~300mm of junction of lower support cylinder；
(2) indirect predictions model
For being difficult to the position of placement sensor at support cylinder, when sensor arrangement position be more than certain distance, survey will be present
Error is measured, therefore proposes indirect predictions model in view of the above problems, concrete model is as follows:
In formula:
A0 is position amplitude to be predicted；
Ai is the amplitude for installing point position；
ε is correction factor, 1.1~1.5, increase with the increase of β；
μ is coefficient of region, 1.0~1.25, increase with the increase of H；
β is region division distance；
H is distance of the measuring point apart from point to be predicted；
Specification of a model:
(2.1) arranged by cutter head support oil cylinder junction point layout method obtain after measuring point the data of corresponding position with
Afterwards, H is divided with region division distance beta, and determines the value of ε and β with this；
(2.2) β is exactly to divide the distance between layer Li.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162608.7A CN109781238B (en) | 2019-03-05 | 2019-03-05 | Method for monitoring vibration condition of joint of support oil cylinder of full-face rock tunnel boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162608.7A CN109781238B (en) | 2019-03-05 | 2019-03-05 | Method for monitoring vibration condition of joint of support oil cylinder of full-face rock tunnel boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109781238A true CN109781238A (en) | 2019-05-21 |
| CN109781238B CN109781238B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910162608.7A Expired - Fee Related CN109781238B (en) | 2019-03-05 | 2019-03-05 | Method for monitoring vibration condition of joint of support oil cylinder of full-face rock tunnel boring machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011107955A1 (en) * | 2010-03-04 | 2011-09-09 | Istituto Nazionale Di Oceanografia E Di Geofisica Sperimentale - Ogs | Tunnel seismic while drilling signal processing and acquisition method |
| CN106150514A (en) * | 2016-06-29 | 2016-11-23 | 上海交通大学 | A kind of TBM vibrating hydraulic condition monitoring system |
| CN206563614U (en) * | 2017-02-15 | 2017-10-17 | 中铁隧道集团有限公司 | A kind of shield/TBM vibration online auto monitoring systems |
| CN109209408A (en) * | 2018-10-22 | 2019-01-15 | 大连理工大学 | The monitoring method of full face rock tunnel boring machine cutterhead connecting flange strain |
| CN109296373A (en) * | 2018-09-13 | 2019-02-01 | 大连理工大学 | Full face rock tunnel boring machine girder and its monitoring method of connecting flange vibration and strain |
-
2019
- 2019-03-05 CN CN201910162608.7A patent/CN109781238B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011107955A1 (en) * | 2010-03-04 | 2011-09-09 | Istituto Nazionale Di Oceanografia E Di Geofisica Sperimentale - Ogs | Tunnel seismic while drilling signal processing and acquisition method |
| CN106150514A (en) * | 2016-06-29 | 2016-11-23 | 上海交通大学 | A kind of TBM vibrating hydraulic condition monitoring system |
| CN206563614U (en) * | 2017-02-15 | 2017-10-17 | 中铁隧道集团有限公司 | A kind of shield/TBM vibration online auto monitoring systems |
| CN109296373A (en) * | 2018-09-13 | 2019-02-01 | 大连理工大学 | Full face rock tunnel boring machine girder and its monitoring method of connecting flange vibration and strain |
| CN109209408A (en) * | 2018-10-22 | 2019-01-15 | 大连理工大学 | The monitoring method of full face rock tunnel boring machine cutterhead connecting flange strain |
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| CN109781238B (en) | 2020-12-08 |
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