CN102878893B - Landslide depth displacement monitoring system and method - Google Patents
Landslide depth displacement monitoring system and method Download PDFInfo
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- CN102878893B CN102878893B CN201210324451.1A CN201210324451A CN102878893B CN 102878893 B CN102878893 B CN 102878893B CN 201210324451 A CN201210324451 A CN 201210324451A CN 102878893 B CN102878893 B CN 102878893B
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Abstract
A kind of landslide depth displacement monitoring system and method, comprise pedestal, measuring equipment is arranged on pedestal, is provided with at least one displacement transducer in measuring equipment, draught line one end is connected with displacement transducer through pedestal, and the other end is connected with the anchor head being embedded in sliding bed position.In the boring of sliding mass excavation; Anchor head is put into boring, and when draught line has many, anchor head is arranged in the different degree of depth; Arrange that fragility sleeve pipe is to anchor head place; Joints cement mortar between boring and fragility sleeve pipe; Fixed installation measuring equipment; The deep multi-point displacement monitoring to large deformation landslide is realized by above-mentioned steps.The present invention is by adopting above-mentioned structure, the larger displacement of landslide depth can be measured, according to the concrete degree of depth of sliding mass by the anchor head of many traction ropes is located at the different degree of depth, traction rope is drawn out different length, to obtain the displacement signal of the sliding mass at different depth place.
Description
Technical field
The present invention relates to landslide monitoring field, particularly a kind of landslide depth displacement monitoring system and adopt this system to carry out the method for monitoring.
Background technology
Landslide depth displacement monitoring is basis and the foundation of preventing land slide always.Landslide depth displacement monitoring not only can provide the important informations such as gliding mass displacement accurately and reliably, sliding surface and sliding bed position, and contributes to long-term landslide state of grasping continuously, realizes landslide stability evaluation and prediction and warning object.
At present, deep soils instrument mainly can be divided into portable borehole inclinometer and fixed borehole inclinometer.
Portable borehole inclinometer can measure the horizontal shift of each section of complete opening, but portable borehole inclinometer range is little, once larger displacement appears in sliding mass, inclinometer pipe will bend, angle of inclination changes, easily cause inclinator cannot hand-hole, cannot metric data, cause boring to scrap; Portable borehole inclinometer need adopt manual type to arrive site work simultaneously, and workload is large, obtains data time discontinuous.
Fixed borehole inclinometer inclino-probe is fixedly mounted on sliding position, the displacement near installation position can only be measured, simultaneously, there is the problems such as slide strips location is difficult, installation is difficult in fixed borehole inclinometer, when gliding mass occurs that Large travel range is out of shape, the cable of its connecting sensor is also very easily cut off, thus causes mistake survey and boring to scrap; Also exist near slipping plane, cable easily cuts soil property or soft rock side slope simultaneously, causes the comparatively problem such as big error to measurement result.
On the whole, no matter be portable borehole inclinometer or fixed borehole inclinometer at present, all exist range little usually within 200mm, the defect on large deformation displacement landslide cannot be monitored.But in Practical Project, many landslides have many slide strips, feature that displacement deformation is large how in time, continuously, obtain and grasp the displacement deformation state of this kind of sliding mass, measure deep displacement distribution accurately and be subject to extensive concern.Therefore, be necessary to design a kind of novel large deformation landslide depth displacement monitoring system, Problems existing in Large travel range distortion landslide and the monitoring of tool many slide strips landslide depth displacement cannot be met to solve existing deep soils technology.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of landslide depth displacement monitoring system and method, can measure landslide depth moderate finite deformation and many slipping planes displacement deformation.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of landslide depth displacement monitoring system, comprise pedestal, measuring equipment is arranged on pedestal, at least one displacement transducer is provided with in measuring equipment, draught line one end is connected with displacement transducer through pedestal, and the other end is connected with the anchor head being embedded in sliding bed position, and anchor head is fixed by sand-cement slurry; .
Described draught line is indium wire rope, nylon rope or their compound mooring rope.
Described draught line is also provided with the fragility sleeve pipe that can disconnect by shear stress outward.
Described displacement transducer is dragline type linear movement pick-up.
Described draught line is many, and many draught lines connect from different displacement transducers respectively.
The anchor head of many draught lines is embedded in the different degree of depth respectively.
Data acquisition and dispensing device is also provided with in described measuring equipment.
Apply a method for above-mentioned monitoring system monitoring landslide depth displacement, comprise the following steps:
One, excavation boring;
Two, draught line is connected; According to the quantity of sliding mass, select the draught line of respective numbers, draught line bottom connects anchor head after passing fragility sleeve pipe, other end connection bit displacement sensor;
Three, anchor head is put into boring, when draught line has many, anchor head is arranged in the different degree of depth; Arrange that fragility sleeve pipe is to anchor head place;
Four, joints cement mortar between boring and fragility sleeve pipe;
Five, measuring equipment is fixedly mounted;
The deep multi-point displacement monitoring to large deformation landslide is realized by above-mentioned steps.
Described boring has to pass through sliding mass, creeps into sliding bed inside.
In step 5, pedestal is vertically put into boring, fragility sleeve pipe and draught line pass through from the draught line punched out of pedestal, pedestal installs dragline type linear movement pick-up by fixing threaded hole, tensioning draught line is also connected with the traction screw of draw-wire displacement sensor, then installation data collection and dispensing device.
A kind of landslide depth displacement monitoring system provided by the invention and method, by adopting above-mentioned structure, the larger displacement of landslide depth can be measured, according to the concrete degree of depth of sliding mass, the draw-wire displacement sensor range ability adopted can at 0-20m, by the anchor head of many traction ropes is located at the different degree of depth, traction rope is drawn out different length, to obtain the displacement signal of the sliding mass at different depth place.By simple calculating, the corresponding displacement data of different depth sliding mass can be obtained.The present invention also can continuous automatic measurement large deformation landslide and the deep displacement that has multilayer slide strips come down, and can realize data automatic transmission, and structure is simple, is convenient to layout.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the one-piece construction schematic diagram of the single traction rope of single slide strips in the present invention.
Fig. 2 is the structural representation of the single traction rope of single slide strips when measuring in the present invention.
Fig. 3 is the one-piece construction schematic diagram of many slide strips many traction ropes in the present invention.
Fig. 4 is the structural representation of many slide strips many traction ropes when measuring in the present invention.
Fig. 5 is the schematic front view of pedestal in the present invention.
Fig. 6 is the schematic top plan view of pedestal in the present invention.
In figure: measuring equipment 1, pedestal 2, fixing threaded hole 21, draught line punched out 22, boring 3, draught line 4, fragility sleeve pipe 5, joints cement mortar 6, anchor head 7, sliding mass 8, slipping plane 9, sliding bed 10.
Embodiment
As Figure 1-4, a kind of landslide depth displacement monitoring system, comprises pedestal 2, measuring equipment 1 is installed on the base 2, be provided with at least one displacement transducer in measuring equipment 1, draught line 4 one end is connected with displacement transducer through pedestal 2, and the other end is connected with the anchor head 7 being embedded in sliding bed position.Sliding bed described herein is relative concept, in time having multilayer sliding mass 8, is just equivalent to the sliding bed of the sliding mass 8 on top at the sliding mass 8 of bottom.
Described draught line 4 is indium wire rope, nylon rope or their compound mooring rope.
Described draught line 4 is outer is also provided with the fragility sleeve pipe 5 that can disconnect by shear stress.Can directly cut off this sleeve pipe during to ensure that gliding mass generation Large travel range is out of shape, structure thus, draught line 4 can not be embedded in weak soil, guarantees that draught line 4 extends along slipping plane 9, thus obtains displacement exactly.
Described displacement transducer is preferably dragline type linear movement pick-up.This kind of displacement transducer maximum range scope, generally at 5-20m, selects range to be 0-20 rice, systematic error 2mm usually.Concrete selection is according to the factor such as the degree of depth, the adjustment of draught line 4 length and displacement sensor zero of sliding mass 8.Draw-wire displacement sensor is directly connected with the data acquisition in measuring equipment 1 and dispensing device, thus realizes automatic data collection and remote auto transmission.
Described draught line 4 is many, and many draught lines 4 connect from different displacement transducers respectively.
The anchor head 7 of many draught lines 4 is embedded in the different degree of depth respectively.The position of usual anchor head 7 corresponds respectively to the sliding mass 8 of each shallow-layer.
Apply a method for above-mentioned monitoring system monitoring landslide depth displacement, comprise the following steps:
One, boring 3 is excavated; Described boring 3 has to pass through all sliding masses 8, and the sliding bed 10 crept into as shown in figs. 1-4 is inner.
Two, draught line 4 is connected; According to the quantity of sliding mass 8, select the draught line 4 of respective numbers, draught line 4, draught line 4 outside fragility sleeve pipe 5 is protected, and draught line 4 bottom connects anchor head 7, other end connection bit displacement sensor after passing fragility sleeve pipe 5;
Three, anchor head 7 is put into boring 3, when draught line 4 has many, anchor head 7 is arranged in the different degree of depth; Wherein, the anchor head 7 of the darkest draught line 4 correspondence is fixed on bottom boring 3, and foot of hole must be positioned at sliding bed 10 position, and the anchor head of all the other draught line 4 correspondences is fixed on boring different depth after sand-cement slurry perfusion, usually corresponds to each shallow failure body 8.Arrange fragility sleeve pipe 5 to anchor head 7 place; General sliding mass 8 number according to concrete landslide of draught line 4 selects equal number, every root draught line 4 is placed within corresponding every root fragility sleeve pipe 5 from the pedestal 2 that top is T-shaped connects monitoring device place, after fragility sleeve pipe 5 is stretched out in draught line 4 bottom, be connected to corresponding fixing anchor head 7;
Four, joints cement mortar 6 between boring 3 and fragility sleeve pipe 5, and it is inner to guarantee that the anchor head 7 of lowermost end is permanently secured stable sliding bed;
Five, measuring equipment 1 is fixedly mounted; In step 5, as shown in Fig. 5,6, pedestal 2 adopts T-shaped horizontal base, is made up of a round platform and a thick walled steel tube.Pedestal 2 is vertically put into boring 3 aperture, pedestal 2 is as the carrying platform of measuring equipment 1, and indium wire rope coil, constant force wire tensioning device, draw-wire displacement sensor etc. as draught line 4 are installed in top, and adopt sealing protection cover to protect.Fragility sleeve pipe 5 and draught line 4 pass through from the draught line punched out 22 of pedestal 2, by fixing threaded hole 21, dragline type linear movement pick-up is installed on the base 2, tension draught line 4 is connected with the traction screw of draw-wire displacement sensor, then installation data collection and dispensing device.
As shown in Fig. 2,4, when being formed when coming down, sliding mass 8 slides along slipping plane 9, because the anchor head 7 of each layer is fixed by sand-cement slurry, draught line 4 is pulled out by from measuring equipment 1, thus drive dragline type linear movement pick-up to obtain displacement data, send the data to monitoring point through data acquisition and dispensing device.
The deep multi-point displacement monitoring to large deformation landslide is realized by above-mentioned steps.
Claims (5)
1. a landslide depth displacement monitoring system, comprise pedestal (2), measuring equipment (1) is arranged on pedestal (2), it is characterized in that: measuring equipment is provided with at least one displacement transducer in (1), draught line (4) one end is connected with displacement transducer through pedestal (2), the other end is connected with the anchor head (7) being embedded in sliding bed position, and anchor head (7) is fixed by sand-cement slurry;
Described draught line (4) is indium wire rope, nylon rope or their compound mooring rope;
Described draught line (4) is many, and many draught lines (4) connect from different displacement transducers respectively;
The anchor head (7) of many draught lines (4) is embedded in the different degree of depth respectively;
Described displacement transducer is dragline type linear movement pick-up;
Described draught line (4) is also provided with the fragility sleeve pipe (5) that can disconnect by shear stress outward.
2. a kind of landslide depth displacement monitoring system according to claim 1, is characterized in that: be also provided with data acquisition and dispensing device in described measuring equipment (1).
3. application rights requires a method for monitoring system monitoring landslide depth displacement described in any one of 1-2, it is characterized in that comprising the following steps:
One, excavation boring (3);
Two, draught line (4) is connected; According to the quantity of sliding mass (8), select the draught line (4) of respective numbers, draught line (4) bottom passes fragility sleeve pipe (5) and connects anchor head (7) afterwards, other end connection bit displacement sensor;
Three, anchor head (7) is put into boring (3), when draught line (4) has many, anchor head (7) is arranged in the different degree of depth; Arrange that fragility sleeve pipe (5) is to anchor head (7) place;
Four, joints cement mortar (6) between boring (3) and fragility sleeve pipe (5);
Five, measuring equipment (1) is fixedly mounted;
The deep multi-point displacement monitoring to large deformation landslide is realized by above-mentioned steps.
4. a kind of method of monitoring landslide depth displacement according to claim 3, is characterized in that: described boring (3) has to pass through sliding mass (8), creeps into sliding bed (10) inside.
5. a kind of method of monitoring landslide depth displacement according to claim 3, it is characterized in that: in step 5, pedestal (2) is vertically put into boring (3), fragility sleeve pipe (5) and draught line (4) pass through from the draught line punched out (22) of pedestal (2), pedestal (2) installs dragline type linear movement pick-up by fixing threaded hole (21), tensioning draught line (4) is also connected with the traction screw of draw-wire displacement sensor, then installation data collection and dispensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210324451.1A CN102878893B (en) | 2012-09-05 | 2012-09-05 | Landslide depth displacement monitoring system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210324451.1A CN102878893B (en) | 2012-09-05 | 2012-09-05 | Landslide depth displacement monitoring system and method |
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| CN102878893A CN102878893A (en) | 2013-01-16 |
| CN102878893B true CN102878893B (en) | 2015-12-02 |
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| CN103791805B (en) * | 2014-01-15 | 2018-07-27 | 重庆市高新工程勘察设计院有限公司 | Landslide depth displacement monitors system |
| CN105806286B (en) * | 2014-12-27 | 2018-08-24 | 山东省水利科学研究院 | Basic point implanted reservoir dam displacement monitoring method and device |
| CN105931536A (en) * | 2016-04-28 | 2016-09-07 | 何满潮 | Miniature constant resistance large-deformation anchor cable and constant resistance device thereof and monitoring system |
| CN106979743B (en) * | 2017-04-19 | 2018-08-10 | 中国地质大学（武汉） | A kind of landslide depth big displacement adaptive monitoring system and method |
| CN107421481B (en) * | 2017-07-04 | 2023-05-02 | 成都理工大学 | Three-dimensional monitoring and early warning multipoint displacement meter for measuring rock mass expansion deformation |
| CN107741211A (en) * | 2017-08-18 | 2018-02-27 | 西北矿冶研究院 | Slope displacement monitoring method |
| CN109115168B (en) * | 2018-09-11 | 2023-08-22 | 长江水利委员会长江科学院 | Device and method for monitoring and analyzing large deformation of stack landslide |
| CN109141319B (en) * | 2018-10-26 | 2023-08-15 | 兰州理工大学 | Landslide surface displacement whole set monitoring device and monitoring method thereof |
| CN110345892B (en) * | 2019-08-14 | 2023-03-14 | 河南省交通规划设计研究院股份有限公司 | Landslide and landslide surface sliding displacement monitoring device and installation method thereof |
| CN112113482B (en) * | 2020-09-01 | 2021-05-14 | 深圳市瑞芬科技有限公司 | Geological landslide monitoring sensor based on NB-IOT network and use method thereof |
| CN111981967A (en) * | 2020-09-02 | 2020-11-24 | 南昌工程学院 | Remote visual monitoring system for landslide deep displacement |
| CN112923886A (en) * | 2021-03-02 | 2021-06-08 | 深圳安锐科技有限公司 | Modular real-time measuring device for deep displacement of soil body |
| CN113670182B (en) * | 2021-08-17 | 2023-02-28 | 中国地质大学（武汉） | Method, system and terminal for measuring landslide motion characteristic parameters of deep tunnel |
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| CN102607488A (en) * | 2012-02-23 | 2012-07-25 | 中国科学院力学研究所 | Device and method for monitoring displacement deformation of sliding surface of landslip |
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| JPH09257527A (en) * | 1996-03-21 | 1997-10-03 | Maeda Corp | Landslide measuring device |
| US7777496B2 (en) * | 2008-07-18 | 2010-08-17 | The United States Of America As Represented By The Secretary Of The Army | Remote sensor system for monitoring the condition of earthen structure and method of its use |
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| CN2854507Y (en) * | 2005-12-22 | 2007-01-03 | 中国科学院力学研究所 | Device for measuring sliding surface position and slippage of landslide |
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| CN102607488A (en) * | 2012-02-23 | 2012-07-25 | 中国科学院力学研究所 | Device and method for monitoring displacement deformation of sliding surface of landslip |
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