CN203083557U - Monitoring instrument for tunnel bottom void passing through ground fissure zone - Google Patents
Monitoring instrument for tunnel bottom void passing through ground fissure zone Download PDFInfo
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- CN203083557U CN203083557U CN 201320064311 CN201320064311U CN203083557U CN 203083557 U CN203083557 U CN 203083557U CN 201320064311 CN201320064311 CN 201320064311 CN 201320064311 U CN201320064311 U CN 201320064311U CN 203083557 U CN203083557 U CN 203083557U
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- nothing
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- range finder
- ground fissure
- laser range
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Abstract
The utility model provides a monitoring instrument for tunnel bottom void passing through a ground fissure zone. The monitoring instrument comprises a holder arranged at a near ground fissure at the bottom of a tunnel and a laser range finder arranged on the holder, wherein a connecting piece is pre-embedded at the center of the bottom of a subsection tunnel passing through the ground fissure, the holder is installed on the connecting piece, then the laser range finder is installed on the holder, and data control software installed in a data processing system is utilized for controlling the laser range finder to automatically acquire void monitoring data at regular time. The monitoring instrument provided by the utility model utilizes the range finding principle of the laser range finder, is simple in structure, easy to operate and low in cost, and can be used for monitoring a void area in real time so as to timely obtain the changes of the void area.
Description
Technical field
The utility model belongs to the ground fissure band monitoring technical field of coming to nothing, and is specifically related to a kind of ground fissure band tunnel bottom monitor that comes to nothing that passes through.
Background technology
Ground fissure is a kind of common geologic hazard, and all there is discovery in many countries in the whole world, for example China, the U.S., Turkey, Thailand, Libya.The distribution of China's ground fissure is very extensive, and along with quickening of urbanization process, the development of ground fissure has scope and constantly enlarges, endangers the trend that constantly increases the weight of.
Because subway belongs to long line engineering, the method that can not take routine to dodge is avoided ground fissure, thereby requires subway tunnel must pass through ground fissure safely.Existing discovering, when the ground fissure activity, because subway tunnel crosses ground fissure, along with the sedimentation of coiling on the ground fissure, coming to nothing of certain limit can appear in the place, segmentation subway tunnel bottom near-earth crack that is positioned at dish, and then influences the change of total stress performance generation essence.
At present, adopt at the more embedding in advance testing elements of tunnel bottom, for example resistance-type displacement meter or pressure cell in the tunnel bottom that passes through ground fissure comes to nothing monitoring more.When utilizing pressure cell to carry out tunnel bottom when coming to nothing the monitoring of scope, can one to two row's pressure cell be installed at tunnel bottom, change according to reading and can determine whether tunnel bottom the phenomenon of coming to nothing occurs.The contact pressure of pressure cell leveled off to 0 o'clock, just can conclude that the phenomenon of coming to nothing has appearred in the tunnel bottom of pressure cell position.
But, because the zone of coming to nothing is difficult to determine, if thereby the testing element density of arranging too small, then can cause test specification accurate inadequately; If the density that testing element is arranged is excessive, then can cause exerting an influence between the testing element, read untrue also can make testing cost too high simultaneously.
Geological radar is a kind of employing high-tech means, with its high resolving power and high-accuracy, can carry out Non-Destructive Testing fast and efficiently, is widely used in the Tunnel Engineering quality testing, especially aspect engineering sounding and defect detection.The applied geology radar can regularly be surveyed the district of coming to nothing.
But because the medium more complicated in the district of coming to nothing, radar wave can't be accurately given at the velocity of wave in the district of coming to nothing; Secondly, the reflection wave feature of second contact surface is difficult to affirmation, can't be accurately quantitative thereby cause coming to nothing the height of distinguishing.Geological radar can not be monitored in real time, and the come to nothing formation of scope can not in time be predicted to tunnel bottom, and radar application is loaded down with trivial details, and expense is higher.
The scope of coming to nothing of tunnel bottom in time employs prevention and remedial measures during by real-time monitoring ground fissure activity, and the safe operation of subway is had huge technical guarantee effect.Thereby, determine that the tunnel bottom scope of coming to nothing becomes the technical matters that the subway tunnel running safety monitoring needs to be resolved hurrily.
The utility model content
The purpose of this utility model is to provide a kind of ground fissure band tunnel bottom monitor that comes to nothing that passes through.
For achieving the above object, the utility model has adopted following technical scheme:
This monitor comprises the The Cloud Terrace that is arranged at tunnel bottom near-earth crack place and is arranged at laser range finder on the The Cloud Terrace.
Described monitor also comprises the supervisory system of coming to nothing, the supervisory system of coming to nothing comprises steering controller, data handling system that links to each other with laser range finder that links to each other with The Cloud Terrace and the laser controlling switch that is used to control the laser range finder start and stop, and steering controller and laser controlling switch link to each other with data handling system respectively.
Described monitor also comprises the camera that is arranged on the The Cloud Terrace, and camera links to each other with data handling system.
Monitor described in the utility model utilizes the range measurement principle (adopting the measuring principle of laser triangulation or return laser beam analytic approach) of laser range finder, utilize the characteristics such as high directivity, high monochromaticity and high brightness of laser to realize high-precision contactless telemeasurement, not only simple in structure, operation, with low cost easily, and can carry out real-time monitoring to the zone of coming to nothing, in time obtain the regional situation of change of coming to nothing.
The utility model has adopted the split type monitoring of structures of being made up of The Cloud Terrace, laser range finder and the supervisory system of coming to nothing, The Cloud Terrace and laser range finder are installed in tunnel bottom, can utilize laser-bounce principle monitoring tunnel bottom concealment part, as the zone of coming to nothing, simultaneously, rotation by the control The Cloud Terrace, can adjust monitoring range, not only can obtain the scope of vertically coming to nothing, and the monitoring result of the scope of can laterally being come to nothing, can provide comprehensively for engineering support, accurately, reference data reliably.
Description of drawings
Fig. 1 is the structural principle block diagram of monitor described in the utility model;
Fig. 2 is one of scheme of installation of laser range finder described in the utility model;
Fig. 3 be laser range finder described in the utility model scheme of installation two;
Fig. 4 is the scope synoptic diagram that laterally comes to nothing described in the utility model;
Among the figure: 1 is The Cloud Terrace, and 2 are the monitoring device that comes to nothing, and 21 is laser beam emitting device, 22 is laser receiver, and 23 is displacement transducer, and 3 are the supervisory system of coming to nothing, 31 is the laser controlling switch, and 32 is data handling system, and 33 is steering controller, 4 is camera, and 5 is Ω type web member, and 6 are the scope of vertically coming to nothing, 7 are the scope of laterally coming to nothing, 8 is sectional tunnel, and A is sectional tunnel sedimentation front position, and B is that put sectional tunnel sedimentation postero-anterior position.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, monitor described in the utility model comprises the The Cloud Terrace 1 that is arranged at tunnel bottom near-earth crack place and is arranged at laser range finder on the The Cloud Terrace 1; Described monitor also comprises the supervisory system 3 of coming to nothing, the supervisory system of coming to nothing 3 comprises the steering controller 33 that links to each other with The Cloud Terrace 1, the data handling system 32 that links to each other with laser range finder and the laser controlling switch 31 that is used to control the laser range finder start and stop, and steering controller 33 and laser controlling switch 31 link to each other with data handling system 32 respectively; Described monitor also comprises the camera 4 that is arranged on the The Cloud Terrace 1, and camera 4 links to each other with data handling system 32.
Principle of work of the present utility model may further comprise the steps:
1) at the bottom centre position built-in connection of the sectional tunnel of striding ground fissure, web member is positioned at the near-earth crack end of described sectional tunnel, and The Cloud Terrace 1 is installed on web member, laser range finder is installed on the The Cloud Terrace 1 then;
2) utilize the Data Control software control laser range finder that is installed in the data handling system 32 that the Monitoring Data of coming to nothing is carried out the timing automatic collection; The described Monitoring Data of coming to nothing comprises the scope of vertically coming to nothing and the scope of laterally coming to nothing.
The acquisition method of the described scope of vertically coming to nothing is: make laser range finder axially measure the extended distance in the zone of coming to nothing along the tunnel by The Cloud Terrace 1.(referring to Fig. 2)
The acquisition method of the described scope of laterally coming to nothing is: make laser range finder by initial point rotation alpha ° left by The Cloud Terrace 1, record apart from l1, make laser range finder by initial point rotation alpha ° to the right then, record apart from l
2, utilize formula
Calculate and get the scope of laterally coming to nothing apart from l, the line of twice measuring distance end points and tunnel transverse cross-section parallel between twice measuring distance end points.(referring to Fig. 3-Fig. 4)
Embodiment
The monitoring instrument of the scope of coming to nothing of tunnel bottom that the purpose of this utility model is that a using method of design is simple, measuring accuracy is higher, datamation is handled when being used for monitoring the ground fissure activity in real time.Its structure, test philosophy such as Fig. 1-shown in Figure 4.
1. instrument is formed
Monitoring instrument is made of the come to nothing monitoring device 2 and supervisory system 3 two parts that come to nothing:
The monitoring device 2 that comes to nothing is installed in place, near-earth crack, sectional tunnel 8 bottom, is made up of UT391 type laser range finder, camera 4 and The Cloud Terrace 1.UT391 type laser range finder is born the function of Laser emission, reception and exchanges data.When laser beam emitting device 21 emitted laser bundles touched the soil layer surface in the zone of coming to nothing, laser beam is reflected back laser receiver 22 immediately, and displacement transducer 23 carries out data processing.Utilize about the cradle head control laser range finder, side-to-side movement, realize monitoring to the whole district of coming to nothing.Utilize camera, understand the phreatic coverage in the district of coming to nothing.
The supervisory system of coming to nothing is made of laser controlling switch 31, steering controller 33 and data handling system 32.
2. installation method:
Ω type web member 5 at the pre-buried 50mm * 30mm of bottom centre position of the sectional tunnel of striding ground fissure is used to install The Cloud Terrace (remote-controlled steering gear), and laser range finder etc. is placed on the The Cloud Terrace, sees Fig. 3.Data line and control line are drawn from the reserving hole in tunnel, and supervisory system links to each other with coming to nothing.
3. monitoring method:
1) vertically the come to nothing test of scope: when instrument was started working, laser beam emitting device work gave off laser beam, when coming to nothing appearred in tunnel bottom, laser was reflected by the soil body, through signal Processing, through data line, on the digital indicator that the value of coming to nothing will be presented at data handling system links to each other.
2) laterally the come to nothing test of scope: in like manner, when measuring when laterally coming to nothing scope, the control steering gear makes generating laser horizontally rotate α ° left, records l
1, horizontally rotate α ° to the right, record l
2, utilize formula
Can get the scope of laterally coming to nothing.
3) utilize Data Control software that data are carried out the timing automatic collection.
4. major parameter:
Type of laser, grade: 635nm,＜1mW, Class II
Measure length: 0.1m～60m, precision ± 1.5mm
Power supply: 220V
Fuselage size: 109 * 49 * 28mm
The beneficial effect that the technical program is brought
1, laser beam emitting device adopts the 220v alternating current that power is provided, and avoids changing the trouble of battery.
2, Laser emission and receiving trap are hidden instrument, be embedded in below the tunnel, and that gauge tap and data monitoring device can be positioned over are indoor, are convenient to real-time monitoring.
3, by remote control, the turning to of may command instrument both can lateral rotation, can also rotate up and down, realized the comprehensive monitoring in the tunnel bottom vertical and horizontal scope.
4, utilize the data processing software deal with data, Monitoring Data can be accurate to 0.01mm.
5, dustproof, the waterproof of instrument is not subjected to phreatic the influence, suitable underground environment.
Claims (3)
1. one kind is passed through the ground fissure band tunnel bottom monitor that comes to nothing, and it is characterized in that: this monitor comprises the The Cloud Terrace (1) that is arranged at place, tunnel bottom near-earth crack and is arranged at laser range finder on the The Cloud Terrace (1).
2. according to the described a kind of ground fissure band tunnel bottom monitor that comes to nothing that passes through of claim 1, it is characterized in that: described monitor also comprises the supervisory system of coming to nothing (3), the supervisory system of coming to nothing (3) comprises the steering controller (33) that links to each other with The Cloud Terrace (1), the data handling system (32) that links to each other with laser range finder and the laser controlling switch (31) that is used to control the laser range finder start and stop, and steering controller and laser controlling switch link to each other with data handling system respectively.
3. according to the described a kind of ground fissure band tunnel bottom monitor that comes to nothing that passes through of claim 2, it is characterized in that: described monitor also comprises the camera (4) that is arranged on the The Cloud Terrace (1), and camera (4) links to each other with data handling system (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064311 CN203083557U (en) | 2013-02-04 | 2013-02-04 | Monitoring instrument for tunnel bottom void passing through ground fissure zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064311 CN203083557U (en) | 2013-02-04 | 2013-02-04 | Monitoring instrument for tunnel bottom void passing through ground fissure zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083557U true CN203083557U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064311 Expired - Fee Related CN203083557U (en) | 2013-02-04 | 2013-02-04 | Monitoring instrument for tunnel bottom void passing through ground fissure zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115608A (en) * | 2013-02-04 | 2013-05-22 | 长安大学 | Instrument and method for monitoring cavity beneath tunnel passing through ground fissure zone |
| CN110513150A (en) * | 2019-10-08 | 2019-11-29 | 四川公路桥梁建设集团有限公司 | A kind of constructing tunnel phase settlement observer |
-
2013
- 2013-02-04 CN CN 201320064311 patent/CN203083557U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115608A (en) * | 2013-02-04 | 2013-05-22 | 长安大学 | Instrument and method for monitoring cavity beneath tunnel passing through ground fissure zone |
| CN110513150A (en) * | 2019-10-08 | 2019-11-29 | 四川公路桥梁建设集团有限公司 | A kind of constructing tunnel phase settlement observer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |