CN214303843U - Active vibration reduction system for open TBM construction - Google Patents
Active vibration reduction system for open TBM construction Download PDFInfo
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- CN214303843U CN214303843U CN202022601104.1U CN202022601104U CN214303843U CN 214303843 U CN214303843 U CN 214303843U CN 202022601104 U CN202022601104 U CN 202022601104U CN 214303843 U CN214303843 U CN 214303843U
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000009467 reduction Effects 0.000 title claims description 13
- 238000013016 damping Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000013500 data storage Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 3
- 230000005641 tunneling Effects 0.000 abstract description 11
- 239000011435 rock Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of tunnel engineering machinery construction equipment, in particular to an active vibration damping system for open-type TBM construction, which overcomes the problem that the existing shield machine has no active and real-time vibration damping system, and adopts the scheme that the system comprises a plurality of vibration measuring instrument assemblies, a plurality of seismic source assemblies and a system host; the vibration meter is fixed on the TBM cutter head support body through a first fixing device; the vibration meter comprises a wave detector, a data acquisition module, a data storage module, an analog-to-digital conversion module, a microprocessor, a wireless data transmission device and a battery, and is used for picking, acquiring, storing and digitally outputting a cutter head vibration signal in the TBM tunneling process; the seismic source is fixed on the TBM main beam through a second fixing device, electrically connected with the TBM equipment through a power cable and used for exciting vibration waves for damping the TBM; the system host is respectively connected with the vibration meter and the seismic source; the method is used for processing and analyzing the signals acquired by the vibration meter and providing the use mode and parameter setting of the seismic source.
Description
Technical Field
The utility model relates to a tunnel engineering machinery construction equipment technical field especially relates to an initiative damping system for open-type TBM construction.
Background
The full face rock Tunnel Boring Machine (TBM) has been widely used in underground engineering construction at home and abroad due to its advantages of high construction quality, high efficiency, environmental protection, small surrounding rock disturbance, etc. The TBM realizes excavation and tunneling through a plurality of hobs on a cutter head to break a face rock mass, the interaction between the hobs and the rock mass causes severe vibration of the hobs and the cutter head, and the vibration is transmitted to a TBM host machine to influence the working performance and the service life of key components of the cutter head and the host machine, and influence the operation environment of constructors to a certain extent, so that the vibration in the TBM tunneling process is effectively reduced, and the technical problem to be solved in TBM construction is solved. The damping method proposed by the current research mainly comprises the following steps: passive vibration damping modes such as a polymer interlayer damping vibration damping steel plate, a damper installation mode, a cutter head flange bolt material change mode and the like are adopted, and an active vibration damping method is not provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the active vibration reduction system for the construction of the open TBM is provided, and the vibration of a cutter head and a host machine during the tunneling of the TBM is effectively reduced.
The utility model provides a technical scheme that its technical problem adopted is: an active vibration reduction system for open TBM construction comprises a plurality of vibration meter assemblies including a first fixing device and a vibration meter, a plurality of seismic source assemblies including a second fixing device and a seismic source and a system host;
the vibration meter is fixed on the open TBM cutter head support body through a first fixing device; the vibration meter comprises a wave detector, a data acquisition module, a data storage module, an analog-to-digital conversion module, a microprocessor, a wireless data transmission device and a battery, and is used for picking, acquiring, storing and digitally outputting a cutter head vibration signal in the TBM tunneling process;
the first fixing device is respectively connected with the vibration meter and the TBM cutter head supporting body and is used for coupling a component detector of the vibration meter and the TBM cutter head supporting body and fixing and protecting the vibration meter on the TBM cutter head supporting body;
the seismic source is fixed on the main beam of the open type TBM through a second fixing device and is electrically connected with the TBM equipment through a power cable, and the seismic source is used for exciting a vibration wave for damping the TBM;
the second fixing device is respectively connected with the seismic source and the TBM main beam and is used for fixing the seismic source on the TBM main beam;
the system host is respectively connected with the vibration meter and the seismic source; the method is used for processing and analyzing the signals acquired by the vibration meter and providing the use mode and parameter setting of the seismic source.
Specifically, the vibration tester is a mechanical vibration tester; the vibration meter detector is a three-component sensor; the seismic source is a digital electric control seismic source.
More specifically, the first fixing device is fixed on the cutter head supporting body through a first bolt, and the second fixing device is fixed on the main beam through a second bolt.
In order to facilitate the operation of personnel, the system host is connected with the TBM host control device or the system host is arranged in a TBM host control room.
The utility model has the advantages that: the utility model provides an initiative damping system for open-type TBM construction utilizes the reverse vibration wave that artifical seismic source arouses to reduce TBM blade disc and host computer vibration, can effectively realize the initiative damping effect to different geological conditions, can reduce the equipment loss that causes by the vibration, protects the instrument equipment, improves constructor's operational environment; meanwhile, the system is convenient and fast to install and simple to operate, and can be widely popularized and used in open TBM construction engineering.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an active vibration damping system for open TBM construction according to the present invention;
FIG. 2 is a schematic view of the installation position of the vibration meter of the present invention;
FIG. 3 is a schematic structural view of the vibration meter assembly of the present invention;
FIG. 4 is a front view of the seismic source assembly of the present invention;
fig. 5 is a top view of the seismic source assembly of the present invention.
In the figure, 1, a cutter head, 2, a top shield, 3, a main beam, 4, a support shoe, 5, a vibration meter assembly, 6, a cutter head support body, 7, a seismic source assembly, 8, a pushing hydraulic cylinder, 9, a main bearing, 5a, a vibration meter, 5b, a first fixing device, 5c, a battery, 5d, a first bolt, 7a, a seismic source, 7b, a second fixing device, 7c, a second bolt, 7d, a power supply and a data cable.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing an initiative damping system for construction of open-type TBM utilizes artifical seismic source arouse reverse vibration ripples to reduce TBM blade disc and host computer vibration.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be described in detail with reference to the accompanying drawings and the following detailed description.
Fig. 1 is the utility model provides an active damping system structure sketch map for construction of open-type TBM, as shown in fig. 1, the utility model provides an active damping system for construction of open-type TBM, include: the vibration measuring instrument comprises a vibration measuring instrument component 5, a seismic source component 7, a system host and system software;
the vibration meter assembly 5 is fixed on the cutter head support body 6, and the vibration meter 5a is used for picking, collecting, storing and digitally outputting vibration signals of the cutter head 1 in the TBM tunneling process;
the seismic source assembly 7 is fixed on the main beam 3; the seismic source 7a is used to excite a vibration wave that dampens the TBM;
the system host is respectively connected with the vibration meter 5a and the seismic source 7 a; the vibration meter is used for processing and analyzing the signals acquired by the vibration meter 5a, providing the use mode and parameter setting of the seismic source 7a, and also providing the display of various graphs and parameters including vibration signal characteristics.
Here, the seismic sources 7a are used in two ways, namely, the number of the seismic source assemblies 5 on the main beam is maximized, and the system host selects all or part of the seismic sources 7a at different positions according to the condition of the vibration wave; directly stopping the machine to add or remove the vibration source component 5 on the reserved mounting hole on the main beam in the tunneling process; the first meaning is suitable for the application under the condition of complicated geological conditions, and the second meaning is suitable for the application under the condition of simple geological conditions.
Certainly, the system host is loaded with system software for providing the functions of processing and analyzing signals acquired by the vibration meter 5a, calculating and analyzing the using and arranging mode and excitation wave parameters of the seismic source 7a, displaying the characteristics of vibration signals and the like, and the software can be completed by general software developers;
the system host is connected with the TBM host control chamber or is arranged in the TBM host control chamber, so that the manual control of the TBM host is facilitated.
Fig. 2 is the installation position schematic diagram of the vibration meter 5a provided by the present invention, as shown in fig. 2, the vibration meter 5a is installed on the cutter head support body 6 through the first fixing device 5 b.
The number of the vibration meters 5a is determined according to the diameter of the cutterhead 1, and the vibration meters are arranged on the left side, the right side and the bottom end components of the TBM cutterhead supporting body 6.
Fig. 3 is the utility model provides a 5 schematic structure views of vibration meter subassembly, as shown in fig. 3, vibration meter subassembly 5 includes vibration meter 5a, first fixing device 5b, battery 5c and first bolt 5 d.
The vibration meter 5a is fixed on an open TBM cutter head support body 6 through a first fixing device 5 b; the vibration meter 5a comprises a wave detector, a data acquisition module, a data storage module, an analog-to-digital conversion module, a microprocessor, a wireless data transmission device and a battery 5c, and is used for picking, acquiring, storing and digitally outputting a cutter head vibration signal in the TBM tunneling process.
The first fixing device 5b is respectively connected with the vibration meter 5a and the TBM cutter head support body 6; the coupling device is used for coupling the detector and the TBM cutter head supporting body, fixing the vibration meter 5a on the TBM cutter head supporting body 6 and protecting the vibration meter 5 a.
The battery 5c is mounted on the first fixing device 5b, and the battery 5c is a lithium battery and provides a power source for the vibration meter 5 a.
The first bolt 5d is used for fixing the first fixing device 5b and the TBM cutterhead support body 6.
The vibration meter 5a is a small-sized portable mechanical vibration tester, a wave detector component of the vibration meter 5a is a high-precision three-component sensor, the vibration meter 5a carries out digital processing on vibration signals of the cutter head 1 acquired in the TBM tunneling process in a wireless mode and transmits the vibration signals to a system host, the vibration meter 5a is fixed by a first fixing device 5b in a bolt mode, and the fixing mode can also use a clamping groove mode.
Fig. 4 and 5 are front and top views of the seismic source assembly 7 provided by the present invention, the seismic source assembly 7 comprising a seismic source 7a, a second fixing device 7b, a second bolt 7c and a power and data cable 7 d.
The seismic source 7a is fixed on the open-type TBM main beam 3 through a second fixing device 7b and used for exciting vibration waves for damping the TBM, the seismic source 7a is electrically connected with TBM equipment through a power cable in a power and data cable 7d, and the power supply of the TBM equipment provides a power source for the seismic source 7 a; the seismic source 7a is connected with a system host through a power supply and a data cable in the data cable 7d, and the parameters of the seismic source 7a are set through the system host;
the second fixing device 7b is respectively connected with the seismic source 7a and the TBM girder 3; for the fixation of the seismic source 7a on the TBM main beam 3.
And the second bolt 7c is used for fixing the second fixing device 7b and the main beam 3 of the TBM.
The control type of the seismic sources 7a is a high-power digital electric control seismic source, the excited vibration reduction wave corresponds to the vibration characteristics of the cutter head 1, the number of the seismic sources 7a is determined according to the diameter of the cutter head 1, the arrangement mode is arranged on the TBM girder 3 in a single-row or multi-row mode according to the vibration reduction requirement, and on the premise of ensuring the strength performance of the TBM girder 3, a certain number of bolt holes are reserved on the girder 3, so that different arrangement modes of the seismic sources 7a can be met.
A initiative damping system for construction of open-type TBM, the damping method who embodies and foundation is:
and starting the vibration meter 5a, picking up, acquiring, storing and digitally converting the vibration signal of the TBM cutter head 1 through the vibration meter 5a, and transmitting the vibration signal data to a system host through a wireless data transmission device of the vibration meter 5 a.
The vibration signal data acquired by the vibration meter 5a is analyzed through a system host and system software to acquire TBM cutter vibration characteristics, the arrangement mode of the seismic sources 7a and the setting parameters for exciting vibration waves are calculated through a backward wave vibration reduction principle, and the arrangement mode also comprises another mode for selecting the arranged seismic sources 7 a.
The seismic sources 7a are arranged on the TBM main beam 3, and in terms of the seismic sources 7a, similarly, another embodiment is to arrange a sufficient number of seismic sources 7a on the main beam in advance and then select part or all of the seismic sources 7a for use by the system host according to the vibration condition.
And setting excitation vibration wave parameters for the seismic source 7a to be used, and starting the seismic source 7a, thereby realizing the TBM tunneling vibration reduction effect.
In the TBM tunneling process, if different geological conditions are met, the vibration signal characteristics acquired by the vibration meter 5a are different, and the adaptability of the active vibration reduction system to the different geological conditions is realized by adjusting the arrangement mode of the vibration sources 7a or exciting vibration wave parameters according to the vibration signal characteristics.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022601104.1U CN214303843U (en) | 2020-11-11 | 2020-11-11 | Active vibration reduction system for open TBM construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022601104.1U CN214303843U (en) | 2020-11-11 | 2020-11-11 | Active vibration reduction system for open TBM construction |
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| CN214303843U true CN214303843U (en) | 2021-09-28 |
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| CN202022601104.1U Active CN214303843U (en) | 2020-11-11 | 2020-11-11 | Active vibration reduction system for open TBM construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392497A (en) * | 2020-11-11 | 2021-02-23 | 核工业北京地质研究院 | Active vibration reduction method and system for open type TBM construction |
| CN114088194A (en) * | 2021-11-15 | 2022-02-25 | 中铁工程装备集团有限公司 | A TBM host vibration anomaly adaptive discrimination method and TBM |
-
2020
- 2020-11-11 CN CN202022601104.1U patent/CN214303843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392497A (en) * | 2020-11-11 | 2021-02-23 | 核工业北京地质研究院 | Active vibration reduction method and system for open type TBM construction |
| CN114088194A (en) * | 2021-11-15 | 2022-02-25 | 中铁工程装备集团有限公司 | A TBM host vibration anomaly adaptive discrimination method and TBM |
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