CN104154850A - 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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- CN104154850A CN104154850A CN201410377471.4A CN201410377471A CN104154850A CN 104154850 A CN104154850 A CN 104154850A CN 201410377471 A CN201410377471 A CN 201410377471A CN 104154850 A CN104154850 A CN 104154850A
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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 relates to limit/face upward slope monitoring technical field, relates in particular to the monitoring instrument for the monitoring of upward slope in tunnel soil body slipping cracking.
Background technology
China's mountain ridge distribution area is wide, builds subterranean tunnel engineering in mountain terrain, needs to facing upward the slippage cracking situation on slope, to observe guaranteeing the safety of Tunnel Engineering in time in construction, prevents from facing upward hill wash and removes to split and cause disaster accident.China has carried out a large amount of excavation slopes, road slope monitoring, but due to reasons such as upward slope in tunnel soil body complex geologic conditions and vegetation coverings, when facing upward slope generation soil body slipping cracking, is not easy to be found and early warning; Meanwhile, still few for the instrument of upward slope in tunnel monitoring both at home and abroad.
Summary of the invention
The object of this patent is for realizing, upward slope in tunnel soil body slipping cracking to be monitored, design a kind of simple and practical monitoring instrument, can be used for the monitoring of facing upward slope soil body slipping cracking of Tunnel Engineering, grasp in time the deformation rule of facing upward the slope soil body in work progress, be conducive to the safe construction of actual tunnel engineering.
Monitoring instrument for the monitoring of upward slope in tunnel soil body slipping cracking of the present invention, comprises two parts: front some stationary installation, rear some stationary installation.
Described front some stationary installation, comprising: the metal stiff rod being connected and fixed successively, spherical valve, electronic intelligence measuring instrument, and described metal stiff rod is imbedded the soil body, for some stationary installation before fixing; Described spherical valve, can, along the 360 degree rotations of metal stiff rod, can guarantee under different gradient, to use between 2; Described electronic intelligence measuring instrument, comprise miniscope and metal ring, after producing displacement in metal ring tension, show the change in displacement between 2, by recording the variation of forward and backward distance between two points, can show that between 2, the shift value ftractureing occurs the soil body.
Described rear some stationary installation, comprising: metal stiff rod, steel tape, spherical valve; Described steel tape, spherical valve are fixed on metal stiff rod successively, and described metal stiff rod is imbedded the soil body, for some stationary installation after fixing; Described spherical valve, can, along the 360 degree rotations of metal stiff rod, can guarantee under different gradient, to use between 2; The end of the chi bar of described steel tape is provided with hook, and this hook is connected with the metal ring of electronic intelligence measuring instrument, and forward and backward two measuring points tighten up chi bar after can being connected by steel tape end hook.
As a further improvement on the present invention, on the spherical valve of described rear some stationary installation, be also provided with register pin, on steel ruler, every 10cm, have a circular hole, can make register pin pass fixed ruler bar.
Described metallic hard pole length is 1～3m, near metallic hard masthead portion, has spherical valve, can guarantee under different gradient, to use between 2.
When the present invention uses, former and later two devices are connected by steel tape, sense data on front point-like electron intelligent measuring apparatus.
The present invention also provides a kind of monitoring method of the monitoring instrument for the monitoring of upward slope in tunnel slippage cracking, comprises the following steps:
A. on tunnel invert earth's surface, along tunnel axis direction, bore hole, some position, guarantee as far as possible between 2 that line moves towards parallel with tunnel; The metal stiff rod of the forward and backward stationary installation of monitoring instrument is inserted in the hole, use sand-cement slurry by 2 fixations, be convenient to DATA REASONING.
B. after before and after, stationary installation fixes, the chi bar of the steel tape of rear some stationary installation is pulled open, pull-up register pin, is connected the end hook of steel tape with the end annulus of electronic intelligence measuring instrument in front some stationary installation.
C. tighten up the chi bar of steel tape, press register pin, open the electronic intelligence measuring instrument of front some stationary installation, after pending data is stable, record initial reading.
D. by recording the reading of electronic intelligence measuring instrument under different time, analyze at 2 between data variation rule, can draw whether soil body crack and slide occurs between 2.
The present invention need to move towards direction and bury underground being parallel to tunnel as far as possible in the layout of forward and backward 2 of monitoring equipment, and the line of front/rear point of fixity guarantees to move towards along tunnel direction and lays; During on-the-spot use, forward and backward some stationary installation should vertically buriedly enter to monitor in boring and use sand-cement slurry to fix.
Front some stationary installation comprises imbeds soil body metal stiff rod, spherical valve, electronic intelligence measuring instrument, and rear some stationary installation comprises imbeds soil body metal stiff rod, steel tape, spherical valve and register pin; After measuring point has been arranged, rear some stationary installation steel tape is connected with electronic intelligence measuring instrument hook, between 2, after tension, pass through rear securing dowel, write down initial reading; By recording under different time electronic intelligence gage readings, monitor and face upward slope soil movement.
In forward and backward stationary installation, have spherical valve, can make the rotation of electronic intelligence measuring instrument 360 degree and can meet the angle of inclination of facing upward slope, be convenient to automatically adjust according to facing upward hillside fields shape, the data of surveying closing to reality more.
The invention has the beneficial effects as follows: in forward and backward stationary installation, have spherical valve, can make the rotation of electronic intelligence measuring instrument 360 degree and can meet the angle of inclination of facing upward slope, be convenient to automatically adjust according to facing upward hillside fields shape, the data of surveying closing to reality more; Monitoring instrument, can overcome and face upward slope complicated earth surface situation for facing upward the monitoring of slope soil body slipping cracking; This monitoring instrument is divided into two parts, is easy to carry; Instrument assembling is simple, convenient operation; Instrument can accurately be measured deformations such as facing upward slope soil body slipping cracking, and the disasters such as upward slope in tunnel slippage cracking are carried out to early warning.
Accompanying drawing explanation
Fig. 1 is the structural representation when putting stationary installation chi bar after the present invention and stretching out;
Fig. 2 is the structural representation while putting the withdrawal of stationary installation chi bar after the present invention;
Fig. 3 is the structural representation of some stationary installation before the present invention.
1. first Metallic rod wherein; 2. steel tape; 3. chi bar; 4. register pin; 5. the first rotatable spherical valve; 6. end is linked up with; 7. the second Metallic rod; 8. the second rotatable spherical valve; 9 electronic intelligence measuring instruments; 10. end annulus.
Embodiment
Below in conjunction with drawings and Examples, this patent is further illustrated.
In Fig. 1～3, a kind of monitoring instrument for the monitoring of upward slope in tunnel slippage cracking, comprises that two parts form: front some stationary installation, rear some stationary installation;
Described front some stationary installation, comprising: second Metallic rod the 7, the second rotatable spherical valve 8, the electronic intelligence measuring instrument 9 that are connected and fixed successively, and described the second Metallic rod 7 is imbedded the soil body, for some stationary installation before fixing; The described second rotatable spherical valve 8, can carry out 360 degree rotations along the second Metallic rod 7, can guarantee under different gradient, to use between 2; Described electronic intelligence measuring instrument 9, comprise miniscope and end annulus 10, after producing displacement in end annulus 10 tensions, show the change in displacement between 2, by recording the variation of forward and backward distance between two points, can show that between 2, the shift value ftractureing occurs the soil body.
Described rear some stationary installation, comprising: the first Metallic rod 1, steel tape the 2, first rotatable spherical valve 5; Described steel tape the 2, first rotatable spherical valve 5 is fixed in the first Metallic rod 1 successively, and described the first Metallic rod 1 is imbedded the soil body, for some stationary installation after fixing; The described first rotatable spherical valve 5, can carry out 360 degree rotations along the first Metallic rod 1, can guarantee under different gradient, to use between 2; The end of the chi bar 3 of described steel tape 2 is provided with end hook 6, and this end hook 6 is connected with the end annulus 10 of electronic intelligence measuring instrument 9, and forward and backward two measuring points tighten up chi bar 3 after can being connected by the end hook 6 of steel tape 2; On the described first rotatable spherical valve 5, be also provided with register pin 4, on steel tape 2, every 10cm, have a circular hole, can make register pin 4 through fixed ruler bar 3.
A monitoring method for the monitoring instrument of monitoring for upward slope in tunnel slippage cracking, comprises the following steps:
A. on tunnel invert earth's surface, along tunnel axis direction, bore hole, some position, between 2, line moves towards parallel with tunnel; The second Metallic rod 7, first Metallic rod 1 of the forward and backward stationary installation of monitoring instrument are inserted in the hole, use suitable quantity of water cement mortar by 2 fixations, be convenient to DATA REASONING.
B. after before and after, stationary installation fixes, the chi bar 3 of the steel tape of rear some stationary installation 2 is pulled open, pull-up register pin 4, is connected the end hook 6 of steel tape 2 with the end annulus 10 of electronic intelligence measuring instrument 9 in front some stationary installation.
C. tighten up the chi bar 3 of steel tape 2, press register pin 4, open the electronic intelligence measuring instrument 9 of front some stationary installation, after pending data is stable, record initial reading.
D. by recording the reading of electronic intelligence measuring instrument 9 under different time, analyze at 2 between data variation rule, can draw whether soil body crack and slide occurs between 2.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be 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 modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. for the monitoring instrument of upward slope in tunnel soil body slipping cracking monitoring, it is characterized in that, comprise two parts: front some stationary installation, rear some stationary installation;
Described front some stationary installation, comprising: the metal stiff rod being connected and fixed successively, spherical valve, electronic intelligence measuring instrument, and described metal stiff rod is imbedded the soil body, for some stationary installation before fixing; Described spherical valve, can, along the 360 degree rotations of metal stiff rod, guarantee that use before under different gradient at 2; Described electronic intelligence measuring instrument, comprise miniscope and metal ring, after producing displacement in metal ring tension, show the change in displacement before 2, by recording the variation of forward and backward distance between two points, draw the shift value of 2 crackings of soil body generation before;
Described rear some stationary installation, comprising: metal stiff rod, steel tape, spherical valve; Described steel tape, spherical valve are fixed on metal stiff rod successively, and described metal stiff rod is imbedded the soil body, for some stationary installation after fixing; Described spherical valve, can, along the 360 degree rotations of metal stiff rod, guarantee that use before under different gradient at 2; The end of the chi bar of described steel tape is provided with hook, and this hook is connected with the metal ring of electronic intelligence measuring instrument, and forward and backward two measuring points tighten up chi bar after being connected by steel tape end hook.
2. the monitoring instrument for the monitoring of upward slope in tunnel soil body slipping cracking as claimed in claim 1, is characterized in that, is also provided with register pin on the spherical valve of described rear some stationary installation, on steel ruler, every 10cm, has a circular hole, and register pin is through fixed ruler bar.
3. the monitoring instrument for the monitoring of upward slope in tunnel soil body slipping cracking as claimed in claim 1, is characterized in that, described metallic hard pole length is 1～3m.
4. a monitoring method of utilizing the monitoring instrument for the monitoring of upward slope in tunnel soil body slipping cracking described in claim 2, is characterized in that, comprises the following steps:
A. on tunnel invert earth's surface, along tunnel axis direction, bore hole, some position, between 2, line moves towards parallel with tunnel; The metal stiff rod of the forward and backward stationary installation of monitoring instrument is inserted in the hole, use sand-cement slurry by 2 fixations, be convenient to DATA REASONING;
B. after before and after, stationary installation fixes, the chi bar of the steel tape of rear some stationary installation is pulled open, pull-up register pin, is connected the end hook of steel tape with the end annulus of electronic intelligence measuring instrument in front some stationary installation;
C. tighten up the chi bar of steel tape, press register pin, open the electronic intelligence measuring instrument of front some stationary installation, after pending data is stable, record initial reading;
D. by recording the reading of electronic intelligence measuring instrument under different time, analyze at 2 between data variation rule, whether there is soil body crack and slide before drawing at 2.
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 |
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| 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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| CN104154850A true CN104154850A (en) | 2014-11-19 |
| CN104154850B CN104154850B (en) | 2017-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251681A (en) * | 2014-09-25 | 2014-12-31 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring instrument and method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930692B (en) * | 2012-11-23 | 2014-11-26 | 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251681A (en) * | 2014-09-25 | 2014-12-31 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring instrument and method thereof |
| CN104251681B (en) * | 2014-09-25 | 2017-04-19 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring method |
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| CN104154850B (en) | 2017-01-25 |
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