CN104154850B - Monitoring instrument and method for monitoring slippage and cracking on heading slope soil body of tunnel - Google Patents
Monitoring instrument and method for monitoring slippage and cracking on heading slope soil body of tunnel Download PDFInfo
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- CN104154850B CN104154850B CN201410377471.4A CN201410377471A CN104154850B CN 104154850 B CN104154850 B CN 104154850B CN 201410377471 A CN201410377471 A CN 201410377471A CN 104154850 B CN104154850 B CN 104154850B
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- fixing device
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Abstract
The invention relates to a monitoring instrument for monitoring slippage and cracking on the heading slope soil body of a tunnel. The monitoring instrument comprises a front monitoring point fixing device and a rear monitoring point fixing device, wherein the front monitoring point fixing device comprises a metal hard rod embedded into the soil body, a spherical valve and an electronic intelligence measuring instrument; the rear monitoring point fixing device comprises a metal hard rod embedded into the soil body, a steel tape, a spherical valve and a locating pin. Moreover, the invention further discloses a monitoring method for the monitoring instrument. The monitoring method for monitoring slippage and cracking of an inverted arch during tunnel excavation, disclosed by the invention solves the problems that the slippage and cracking of the inverted arch of the tunnel cannot be accurately measured, and is closer to engineering practical application in comparison with the previous research, and the monitoring instrument can be used more widely.
Description
Technical field
This patent is related to side/face upward slope monitoring technical field, ftractures prison particularly with regard to for upward slope in tunnel soil body slipping
The monitoring instrument surveyed.
Background technology
China's mountain ridge distribution area is wide, builds underground tunnel project in mountain terrain, needs in time to facing upward slope in construction
Sliding cracking situation is observed to ensure the safety of Tunnel Engineering, prevents from facing upward hill wash removing to split and causes disaster accident.China is
Carry out substantial amounts of excavation slope, road slope monitoring, but due to upward slope in tunnel soil body complex geologic conditions and vegetation
The reasons such as covering, are not easy to be found and early warning facing upward when slope occurs soil body slipping cracking；Meanwhile, both at home and abroad for upward slope in tunnel
The instrument of monitoring is still few.
Content of the invention
The purpose of this patent is for realizing upward slope in tunnel soil body slipping cracking is monitored, designing a kind of structure simply real
Monitoring instrument, can be used for the monitoring facing upward slope soil body slipping cracking of Tunnel Engineering, grasps in work progress in time and face upward
The deformation rule of the slope soil body, is conducive to the safe construction of actual tunnel engineering.
The monitoring instrument for the cracking monitoring of upward slope in tunnel soil body slipping of the present invention, including two parts: the fixing dress of front point
Put, put fixing device afterwards.
Described front fixing device, comprising: be sequentially connected fixing metal stiff rod, globe valve, electronic intelligence measuring instrument, institute
State metal stiff rod and be earthed body, for fixing front point fixing device；Described globe valve, can be along the 360 degree of rotations of metal stiff rod, can
To ensure to use under different gradient between 2 points；Described electronic intelligence measuring instrument, including miniscope and metal ring, uses
Show the change in displacement between 2 points after producing displacement in metal ring tension, by recording forward and backward distance between two points
Change, you can show that between 2 points, the soil body occurs the shift value ftractureing.
Point fixing device after described, comprising: metal stiff rod, steel tape, globe valve；Described steel tape, globe valve are solid successively
It is scheduled on metal stiff rod, described metal stiff rod is earthed body, for putting fixing device after fixation；Described globe valve, can be along gold
Belong to 360 degree of rotations of stiff rod it is ensured that using under different gradient between 2 points；The end of the chi bar of described steel tape is provided with extension
Hook, this hook is connected with the metal ring of electronic intelligence measuring instrument, and forward and backward two measuring points can be connected by coil of strip ruler end part hook
After tighten up chi bar.
As a further improvement on the present invention, the globe valve of described rear point fixing device is additionally provided with alignment pin, on steel ruler
There is a circular hole every 10cm, alignment pin can be made to pass through fixed ruler bar.
Described metallic hard pole length is 1～3m, has globe valve it is ensured that not between 2 points near metallic hard masthead portion
Use with the gradient.
When the present invention uses, former and later two devices are connected by steel tape, read number on front point-like electron intelligent measuring apparatus
According to.
Present invention also offers a kind of for upward slope in tunnel sliding cracking monitoring monitoring instrument monitoring method, including with
Lower step:
A. in tunnel inverted arch earth's surface along tunnel axis direction Zuan Dianwei hole, line and tunnel between 2 points are ensured as far as possible
Move towards parallel；The metal stiff rod of the forward and backward fixing device of monitoring instrument is inserted in the hole, using cement mortar by 2 points of fix tightlies
Gu, it is easy to DATA REASONING.
B., after before and after, fixing device fixes, the chi bar of the steel tape of rear fixing device is pulled open, pull-up alignment pin,
The end hook of steel tape is connected with the end circular loop of the electronic intelligence measuring instrument in front fixing device.
C. tighten up the chi bar of steel tape, press alignment pin, the electronic intelligence measuring instrument of point fixing device, pending data before opening
Initial reading is recorded after stable.
D. pass through to record the reading of electronic intelligence measuring instrument under different time, data variation rule between analyzing at 2 points, that is,
Can draw between 2 points, whether soil-body landslide sliding.
The present invention needs to bury moving towards direction parallel to tunnel as far as possible in the arrangement of forward and backward 2 points of monitoring device, front/rear
The line of fixing point ensures that moving towards direction along tunnel lays；During onsite application, forward and backward fixing device should vertically buried enter to monitor
Fix in boring and using cement mortar.
Front fixing device includes imbedding soil body metallic hard bar, globe valve, electronic intelligence measuring instrument, puts fixing device bag afterwards
Include embedment soil body metallic hard bar, steel tape, globe valve and alignment pin；After the completion of point layout, by rear fixing device steel
Tape measure is connected with electronic intelligence measuring instrument hook, passes through rear securing dowel, write down initial reading between 2 points after straining；Pass through
Under record different time, electronic intelligence gage readings face upward slope soil movement to monitor.
There is globe valve in forward and backward fixing device, 360 degree of electronic intelligence measuring instrument can be made to rotate and can meet and face upward slope
Angle of inclination, is easy to automatically adjust according to facing upward hillside fields shape, surveyed data more closing to reality.
The invention has the beneficial effects as follows: there is globe valve in forward and backward fixing device, 360 degree of electronic intelligence measuring instrument can be made
Rotation simultaneously can meet the angle of inclination facing upward slope, be easy to basis and face upward hillside fields shape and automatically adjust, surveyed data more presses close to reality
Border；Monitoring instrument, can overcome the monitoring facing upward slope complicated earth surface situation for facing upward slope soil body slipping cracking；This monitoring instrument is divided into
Two parts, are easy to carry；Instrument assembling is simple, is easy to operate；Instrument accurate measurement can face upward the deformation such as slope soil body slipping cracking
Situation, carries out early warning to disasters such as upward slope in tunnel sliding crackings.
Brief description
Fig. 1 is structural representation when point fixing device chi bar stretches out after the present invention；
Fig. 2 is structural representation when point fixing device chi bar withdraws after the present invention；
Fig. 3 is the structural representation of point fixing device before the present invention.
Wherein 1. first metallic rod；2. steel tape；3. chi bar；4. alignment pin；5. the first rotatable globe valve；6. end hangs
Hook；7. the second metallic rod；8. the second rotatable globe valve；9 electronic intelligence measuring instruments；10. end circular loop.
Specific embodiment
With reference to the accompanying drawings and examples this patent is further illustrated.
In Fig. 1～3, a kind of monitoring instrument for upward slope in tunnel sliding cracking monitoring, constitute including two parts: front solid point
Determine device, put fixing device afterwards；
Described front fixing device, comprising: be sequentially connected the second fixing metallic rod 7, the second rotatable globe valve 8, electricity
Sub- intelligent measuring apparatus 9, described second metallic rod 7 imbeds the soil body, for fixing front point fixing device；Described second is rotatably spherical
Valve 8, can carry out 360 degree of rotations along the second metallic rod 7 it is ensured that using under different gradient between 2 points；Described electronics
Intelligent measuring apparatus 9, including miniscope and end circular loop 10, for showing at 2 points after end circular loop 10 tension produces displacement
Between change in displacement, by recording the change of forward and backward distance between two points, you can show that the soil body between 2 points occurs cracking
Shift value.
Point fixing device after described, comprising: the first metallic rod 1, steel tape 2, the first rotatable globe valve 5；Described coil of strip
Chi 2, the first rotatable globe valve 5 are sequentially fixed in the first metallic rod 1, and described first metallic rod 1 imbeds the soil body, for fixing
Put fixing device afterwards；Described first rotatable globe valve 5, can carry out 360 degree of rotations along the first metallic rod 1 it is ensured that two
Use under different gradient between point；The end of the chi bar 3 of described steel tape 2 is provided with end hook 6, this end hook 6 and electricity
The end circular loop 10 of sub- intelligent measuring apparatus 9 is connected, and forward and backward two measuring points can be tightened up after being connected by the end hook 6 of steel tape 2
Chi bar 3；It is additionally provided with alignment pin 4 on described first rotatable globe valve 5, steel tape 2 has a circular hole every 10cm, it is fixed to make
Position pin 4 passes through fixed ruler bar 3.
A kind of monitoring method of the monitoring instrument for upward slope in tunnel sliding cracking monitoring, comprises the following steps:
A. in tunnel inverted arch earth's surface along tunnel axis direction Zuan Dianwei hole, between 2 points, line moves towards parallel with tunnel；
Second metallic rod 7 of the forward and backward fixing device of monitoring instrument, the first metallic rod 1 are inserted in the hole, will using appropriate cement mortar
2 points of fixations, are easy to DATA REASONING.
B. after before and after, fixing device fixes, the chi bar 3 of the steel tape 2 of rear fixing device is pulled open, pull-up positions
Pin 4, the end hook 6 of steel tape 2 is connected with the end circular loop 10 of the electronic intelligence measuring instrument 9 in front fixing device.
C. tighten up the chi bar 3 of steel tape 2, press alignment pin 4, before opening, the electronic intelligence measuring instrument 9 of point fixing device, treats
Initial reading is recorded after data stabilization.
D. pass through to record the reading of electronic intelligence measuring instrument 9 under different time, data variation rule between analyzing at 2 points, that is,
Can draw between 2 points, whether soil-body landslide sliding.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not model is protected to the present invention
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (3)
1. it is used for the monitoring instrument of upward slope in tunnel soil body slipping cracking monitoring, it is characterized in that, including two parts: the fixing dress of front point
Put, put fixing device afterwards；
Described front fixing device, comprising: be sequentially connected fixing metal stiff rod, globe valve, electronic intelligence measuring instrument, described gold
Belong to the stiff rod embedment soil body, for fixing front point fixing device；Described globe valve, can along the rotation of 360 degree of metal stiff rod it is ensured that
Use under different gradient between forward and backward 2 points；Described electronic intelligence measuring instrument, including miniscope and metal ring, uses
Show the change in displacement between forward and backward 2 points after producing displacement in metal ring tension, by recording forward and backward 2 points of spacing
From change, show that the soil body between forward and backward 2 points occurs the shift value of cracking；
Point fixing device after described, comprising: metal stiff rod, steel tape, globe valve；Described steel tape, globe valve are sequentially fixed at
On metal stiff rod, described metal stiff rod is earthed body, for putting fixing device after fixation；Described globe valve, can be along metallic hard
360 degree of rotations of bar are it is ensured that use between forward and backward 2 points under different gradient；The end of the chi bar of described steel tape is provided with hook,
This hook is connected with the metal ring of electronic intelligence measuring instrument, and forward and backward two measuring points pass through to tighten up after coil of strip ruler end part hook is connected
Chi bar；
It is additionally provided with alignment pin on the globe valve of point fixing device after described, steel tape has a circular hole every 10cm, alignment pin is worn
Cross fixed ruler bar.
2. it is used for the monitoring instrument of upward slope in tunnel soil body slipping cracking monitoring as claimed in claim 1, it is characterized in that, described gold
Genus stiff rod length is 1～3m.
3. a kind of monitoring side of the monitoring instrument for the cracking monitoring of upward slope in tunnel soil body slipping utilizing described in claim 1
Method, is characterized in that, comprises the following steps:
A. in tunnel inverted arch earth's surface along tunnel axis direction Zuan Dianwei hole, between forward and backward 2 points, line moves towards parallel with tunnel；
Front fixing device of monitoring instrument and the metal stiff rod of rear fixing device are inserted in the hole, will be forward and backward using cement mortar
2 points of fixations, are easy to DATA REASONING；
B., after front fixing device is fixed with rear fixing device, the chi bar of the steel tape of rear fixing device is pulled open,
Pull-up alignment pin, the end hook of steel tape is connected with the metal ring of the electronic intelligence measuring instrument in front fixing device；
C. tighten up the chi bar of steel tape, press alignment pin, the electronic intelligence measuring instrument of point fixing device before opening, pending data is stable
After record initial reading；
D. pass through to record the reading of electronic intelligence measuring instrument under different time, data variation rule between analyzing at forward and backward 2 points, that is,
Draw, between forward and backward 2 points, whether soil-body landslide sliding occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377471.4A CN104154850B (en) | 2014-08-01 | 2014-08-01 | Monitoring instrument and method for monitoring slippage and cracking on heading slope soil body of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377471.4A CN104154850B (en) | 2014-08-01 | 2014-08-01 | Monitoring instrument and method for monitoring slippage and cracking on heading slope soil body of tunnel |
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| Publication Number | Publication Date |
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| CN104154850A CN104154850A (en) | 2014-11-19 |
| CN104154850B true CN104154850B (en) | 2017-01-25 |
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| CN201410377471.4A Active CN104154850B (en) | 2014-08-01 | 2014-08-01 | Monitoring instrument and method for monitoring slippage and cracking on heading slope soil body of tunnel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104251681B (en) * | 2014-09-25 | 2017-04-19 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930692A (en) * | 2012-11-23 | 2013-02-13 | 朱海涛 | Method for mounting and applying road, bridge and tunnel safety comprehensive detection, monitoring and early warning device |
| CN204085436U (en) * | 2014-08-01 | 2015-01-07 | 山东大学 | For the monitoring instrument of upward slope in tunnel soil body slipping cracking monitoring |
-
2014
- 2014-08-01 CN CN201410377471.4A patent/CN104154850B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930692A (en) * | 2012-11-23 | 2013-02-13 | 朱海涛 | Method for mounting and applying road, bridge and tunnel safety comprehensive detection, monitoring and early warning device |
| CN204085436U (en) * | 2014-08-01 | 2015-01-07 | 山东大学 | For the monitoring instrument of upward slope in tunnel soil body slipping cracking monitoring |
Non-Patent Citations (1)
| Title |
|---|
| 《单轴压缩条件下锚杆对含三维表面裂隙试样的锚固效应试验研究》;张宁等;《岩土力学》;20111130;第32卷(第11期);第3288-3294、3305页 * |
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| CN104154850A (en) | 2014-11-19 |
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