CN104613858A - Tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method - Google Patents
Tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method Download PDFInfo
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- CN104613858A CN104613858A CN201510036785.2A CN201510036785A CN104613858A CN 104613858 A CN104613858 A CN 104613858A CN 201510036785 A CN201510036785 A CN 201510036785A CN 104613858 A CN104613858 A CN 104613858A
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- tunnel surrounding
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- horizontal convergence
- preliminary bracing
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Abstract
The invention discloses a tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method. The monitoring instrument comprises a plurality of contacts, and each contact is connected with a sensor through a sensing rod. The sensor is connected with a metering scale. The contacts, the sensing rods and the sensor are inserted in excavated tunnel surrounding rock, and the metering scale is buried on the outside of the surrounding rock. The monitoring instrument and method have the advantages of being capable of monitoring the tunnel surrounding rock primary bracing horizontal convergence displacement value conveniently and quickly, simple in structure, accurate in reading, convenient to carry and capable of monitoring the tunnel surrounding rock primary bracing horizontal convergence displacement value timely.
Description
Technical field
The present invention relates to a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument and method.
Background technology
Along with the fast lifting of China's economy, traffic system is flourish, and China is many mountain ranges again, so highway, railway tunnel are essential.In work progress, if the displacement of tunnel surrounding preliminary bracing horizontal convergence can not be monitored in time, certain influence can be caused to subsequent construction or security.Existing detection method is the corresponding process place of measuring section normally, and namely every 10m lays a measuring section, and with vault sinking observation station on same measuring section, fixed bar has been buried in the perforating of measuring point air drill underground, and establishes hook exposing bar head.Measuring point is of moderate size.Horizontal convergence measures measuring point, and be generally arranged in both sides haunch, every section arranges 2 points, when running into other obstacle, and can suitable shift position.Read the number of degrees of both sides haunch, by calculating the horizontal convergence of country rock preliminary bracing.The method needs manually to calculate, and can not directly draw corresponding displacement, have error and exist, and measuring point is easily destroyed during calculating.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument and method, structure of the present invention is simple, be convenient for carrying, fast monitored the instrument of tunnel surrounding preliminary bracing horizontal convergence displacement be can go out, safe construction and the disaster alarm of Practical Project are conducive to.Instant invention overcomes the shortcoming that the displacement of tunnel surrounding preliminary bracing horizontal convergence can not be measured in time, very large guidance is provided to the determination of subsequent construction.
For achieving the above object, concrete scheme of the present invention is as follows:
A kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument, comprise multiple contact, each contact is all connected with sensor by sensor bar, described sensor is connected with measuring stick, described contact, sensor bar and sensor insert in the tunnel surrounding of construction and excavation, and measuring stick is embedded in outside country rock.
Described sensor bar is wire rope.
Described contact is used for reception surrounding rock displacement variable quantity.Contact needs surrounding rock displacement more responsive, and very small displacement just passes to sensor bar by contact.
Described sensor is displacement transducer, is a kind of linear unit belonging to metal induction.
A method for tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument, comprises the following steps:
Step one: the contact connected, sensor bar and sensor are integrally inserted in the tunnel surrounding of construction and excavation, measuring stick is embedded in outside country rock, anchoring is got well and is recorded the number of degrees this moment;
Step 2: along with the distortion of tunnel surrounding preliminary bracing, pressure will pass to contact, sends sensor to by sensor bar, drives slide calliper rule to move forward, determines tunnel surrounding preliminary bracing horizontal convergence shift value by reading.
In step 2, after sensor switches on power, in the sensitive surface of switch by generation alternating magnetic field, when metal sensor bar is close to this sensitive surface, then produce eddy current in metal and drawn the energy of oscillator, make the linear attenuation of oscillator output amplitude, then drive measuring stick to move according to the change of damping capacity.
This horizontal convergence displacement monitoring instrument does not need the data of both sides haunch just can obtain the horizontal convergence of tunnel surrounding preliminary bracing.
Beneficial effect of the present invention:
The present invention have studied in tunnel the method for how to monitor tunnel surrounding preliminary bracing horizontal convergence shift value, solves the problem of how to monitor tunnel surrounding preliminary bracing horizontal convergence shift value.Compared with studying with forefathers, the present invention is simple and easy to carry, and is convenient to execute-in-place, and the data of gained are more accurate.
The invention solves the monitoring problem of tunnel surrounding preliminary bracing horizontal convergence shift value, have the following advantages:
1, can convenient and swift monitoring tunnel surrounding preliminary bracing horizontal convergence shift value;
2, structure is simple, and reading is accurate;
3, easy to carry, tunnel surrounding preliminary bracing horizontal convergence shift value can be monitored in time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein, 1, sensor; 2, contact; 3, sensor bar, 4, country rock abutment wall, 5, just prop up abutment wall.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument, comprises sensor 1, contact 2, measuring stick, sensor bar 3.
Principle of work: some miniature measuring point contacts 2 being built in instrument internal, described each miniature measuring point contact 2 is all connected with steel cable one end; Along with the distortion of tunnel surrounding preliminary bracing, pressure will pass to the contact 2 of displacement meter, sends sensor 1 to by sensor bar 3, drives slide calliper rule to move forward, determines tunnel surrounding preliminary bracing horizontal convergence shift value by reading.
Tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument and method, comprise the following steps:
A. inserted by displacement meter in the tunnel surrounding abutment wall 4 of construction and excavation, rule is embedded in outside country rock, anchoring is got well and is recorded the number of degrees this moment;
B. along with country rock just props up the change of abutment wall 5, pressure will pass to the contact of displacement meter, sends sensor 1 to by sensor bar 3, drives slide calliper rule to move forward, determines displacement deformation amount by reading.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (6)
1. a tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument, it is characterized in that, comprise multiple contact, each contact is all connected with sensor by sensor bar, described sensor is connected with measuring stick, described contact, sensor bar and sensor insert in the tunnel surrounding of construction and excavation, and measuring stick is embedded in outside country rock.
2. a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument as claimed in claim 1, it is characterized in that, described sensor bar is wire rope.
3. a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument as claimed in claim 1, it is characterized in that, described sensor is displacement transducer, is a kind of linear unit belonging to metal induction.
4. a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument as claimed in claim 1, is characterized in that, described contact is used for reception surrounding rock displacement variable quantity.
5. the method for a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument as claimed in claim 1, is characterized in that, comprise the following steps:
Step one: contact, sensor bar and sensor are integrally inserted in the tunnel surrounding of construction and excavation, measuring stick is embedded in outside country rock, anchoring is got well and is recorded the number of degrees this moment;
Step 2: along with the distortion of tunnel surrounding preliminary bracing, pressure will pass to contact, sends sensor to by sensor bar, drives slide calliper rule to move forward, determines tunnel surrounding preliminary bracing horizontal convergence shift value by reading.
6. the method for a kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument as claimed in claim 5, it is characterized in that, in step 2, after sensor switches on power, in the sensitive surface of switch by generation alternating magnetic field, when metal sensor bar is close to this sensitive surface, then produces eddy current in metal and drawn the energy of oscillator, make the linear attenuation of oscillator output amplitude, then drive measuring stick to move according to the change of damping capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036785.2A CN104613858A (en) | 2015-01-23 | 2015-01-23 | Tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510036785.2A CN104613858A (en) | 2015-01-23 | 2015-01-23 | Tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method |
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| CN104613858A true CN104613858A (en) | 2015-05-13 |
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| CN201510036785.2A Pending CN104613858A (en) | 2015-01-23 | 2015-01-23 | Tunnel surrounding rock primary bracing horizontal convergence displacement monitoring instrument and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052580A (en) * | 2016-07-13 | 2016-10-26 | 同济大学 | Test device used for measuring extrusion deformation of tunnel face of tunnel |
| CN107063175A (en) * | 2016-12-28 | 2017-08-18 | 湖南品智工程技术有限公司 | One kind is used for subgrade settlement automatic monitoring system |
| CN108592875A (en) * | 2018-04-10 | 2018-09-28 | 中国人民解放军陆军工程大学 | A kind of computational methods of novel touch tunnel convergence monitoring system convergence displacement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090106257A (en) * | 2008-04-04 | 2009-10-08 | 한국시설안전공단 | The method to estimate realtime-quantitative stability of the tunnel under construction and it's system |
| CN201699678U (en) * | 2010-06-25 | 2011-01-05 | 浙江正泰机床电气制造有限公司 | Inductance approach switch |
| CN102288085A (en) * | 2011-07-22 | 2011-12-21 | 山东大学 | Mechanical simple flexible multi-point displacement monitoring system for model test |
| CN102322791A (en) * | 2011-07-21 | 2012-01-18 | 山东大学 | Automatic test system for model test displacement data and test method thereof |
| CN204064227U (en) * | 2014-08-12 | 2014-12-31 | 大连海事大学 | A kind of rock displacement monitoring device |
| CN204495270U (en) * | 2015-01-23 | 2015-07-22 | 山东大学 | A kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument |
-
2015
- 2015-01-23 CN CN201510036785.2A patent/CN104613858A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090106257A (en) * | 2008-04-04 | 2009-10-08 | 한국시설안전공단 | The method to estimate realtime-quantitative stability of the tunnel under construction and it's system |
| CN201699678U (en) * | 2010-06-25 | 2011-01-05 | 浙江正泰机床电气制造有限公司 | Inductance approach switch |
| CN102322791A (en) * | 2011-07-21 | 2012-01-18 | 山东大学 | Automatic test system for model test displacement data and test method thereof |
| CN102288085A (en) * | 2011-07-22 | 2011-12-21 | 山东大学 | Mechanical simple flexible multi-point displacement monitoring system for model test |
| CN204064227U (en) * | 2014-08-12 | 2014-12-31 | 大连海事大学 | A kind of rock displacement monitoring device |
| CN204495270U (en) * | 2015-01-23 | 2015-07-22 | 山东大学 | A kind of tunnel surrounding preliminary bracing horizontal convergence displacement monitoring instrument |
Non-Patent Citations (2)
| Title |
|---|
| 张乾兵等: "水电站洞群模型试验中位移量测方法的研究", 《水利学报》 * |
| 张乾兵等: "洞群模型试验中微型多点位移计的设计及应用", 《岩土力学》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052580A (en) * | 2016-07-13 | 2016-10-26 | 同济大学 | Test device used for measuring extrusion deformation of tunnel face of tunnel |
| CN106052580B (en) * | 2016-07-13 | 2019-04-16 | 同济大学 | A kind of experimental rig measuring tunnel tunnel face extrusion deformation |
| CN107063175A (en) * | 2016-12-28 | 2017-08-18 | 湖南品智工程技术有限公司 | One kind is used for subgrade settlement automatic monitoring system |
| CN108592875A (en) * | 2018-04-10 | 2018-09-28 | 中国人民解放军陆军工程大学 | A kind of computational methods of novel touch tunnel convergence monitoring system convergence displacement |
| CN108592875B (en) * | 2018-04-10 | 2020-06-26 | 中国人民解放军陆军工程大学 | Novel calculation method for convergence displacement of contact type tunnel convergence monitoring system |
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Application publication date: 20150513 |
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