CN203672311U - Landslide deep displacement monitoring system - Google Patents

Landslide deep displacement monitoring system Download PDF

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Publication number
CN203672311U
CN203672311U CN201420024524.XU CN201420024524U CN203672311U CN 203672311 U CN203672311 U CN 203672311U CN 201420024524 U CN201420024524 U CN 201420024524U CN 203672311 U CN203672311 U CN 203672311U
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CN
China
Prior art keywords
displacement
landslide
measuring
test tube
monitoring
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Expired - Fee Related
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CN201420024524.XU
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Chinese (zh)
Inventor
王凯
王森
邓丽华
李沁羽
陈涛
易朋莹
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CHONGQING GAOXIN ENGINEERING SURVEY AND DESIGN INSTITUTE Co Ltd
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CHONGQING GAOXIN ENGINEERING SURVEY AND DESIGN INSTITUTE Co Ltd
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Priority to CN201420024524.XU priority Critical patent/CN203672311U/en
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Publication of CN203672311U publication Critical patent/CN203672311U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a landslide deep displacement monitoring system. The system comprises a stay wire, a displacement measuring device arranged on the ground, and a measuring pipe arranged underground. One end of the stay wire is connected with the displacement measuring device and the other end is fixed in the measuring pipe; the measuring pipe is aslant arranged with a horizontal plane and passes through the slide surface of a landslide to enable the bottom of the measuring pipe to be fixed at the position of a slide bed; and the measuring pipe is a flexible pipe which can deform along with the sliding of a slide body. According to the utility model, the measuring pipe is a flexible pipe aslant arranged with the horizontal plane and the bottom of the measuring pipe extends into the slide bed so that the stay wire in the measuring pipe can respond to displacement change even under the condition of not large slide displacement, displacement sufficient for detection is generated, and the displacement monitoring accuracy is ensured; the burying of micro measuring devices such as a boring inclination angle sensor and the like is unnecessary, landslide micro displacement can be monitored simply by arranging the displacement measuring device on surface of the ground, the instrument environment is good, damage is not easily caused, maintenance is facilitated, and the operation cost is greatly reduced. Therefore, the landslide deep displacement monitoring system has quite high popularization and application values.

Description

Landslide depth displacement monitoring system
Technical field
The utility model relates to a kind of Landslide Forecast System, particularly a kind of landslide depth displacement monitoring system.
Background technology
Landslide refers to the impact due to many factors of native rock mass on slope, under the effect of gravity, along certain weak face or weak band, the phenomenon of inclined slope aspect lower slider in whole or in part.Landslide disaster is to have one of geologic hazard that harm is larger.Because the difference of geologic condition, kind, the phenomenon on landslide are a lot, deformation failure pattern complexity, and this has also manufactured higher difficulty to the monitoring on landslide.The monitoring index on landslide comprises geology macroscopic view person's movements and expression monitoring index, ground displacement monitoring index, deep displacement monitoring index, risk factor monitoring index, groundwater dynamic monitoring index and geophysical field monitoring index.Wherein deep displacement monitoring is basis and the foundation of preventing land slide always, it not only can provide the important informations such as gliding mass displacement accurately and reliably, slipping plane and sliding bed position, and contribute to grasp continuously for a long time landslide state, realize landslide stability evaluation and prediction early warning object.
Landslide depth displacement is monitored, and the main clinograph that uses is monitored at present, also has and uses the sliding surface mistake of vertical drilling to cut the monitoring of type guy type displacement meter.Dip angle of hole sensor is buried in clinograph monitoring underground near the slip band of its test tube, and the change of measuring inclination angle by obliquity sensor calculates and surveys the relative displacement of establishing position, and sensor sensing degree is high; But may reconnoitre landslide geologic feature understanding deficiency due to the initial stage, and burial place fails to capture slipping plane, causes to monitor unsuccessfully; Simultaneously in the time that deep displacement is larger, obliquity sensor cannot reflect that excessive angle changes, and therefore cannot continue testing, and boring and obliquity sensor all damage, and causes larger cost waste.The sliding surface of vertical drilling is frustrated one end of fixing bracing wire in the test tube of cutting the monitoring of type guy type displacement meter, the other end of bracing wire extends to earth's surface and connects displacement measuring device (as code sensor), slide along slipping plane by landslide, test tube is frustrated disconnected at position of slip surface, and towing bracing wire produces displacement; It has sensor and is laid in earth's surface, not fragile and be easy to safeguard, can adapt to large deformation, the advantage that cost is low.And in fact landslide starts and most needs experience creeping deformation until the process of sliding, the face of the sliding surface zero thickness that also not this model is thought, and there is often certain thickness slip band; Based on the deviation to Landslide Deformation sliding-modes understanding, existing test tube is all located at below measurement mechanism and perpendicular to surface level setting, therefore make only to produce certain deflection in the little situation pull-down line of slide displacement, bracing wire does not stretch, can not form the displacement that is enough to detection, while only having the larger displacement of generation, just can detect, susceptibility is low, and this has also limited the application of guy type displacement meter in landslide monitoring.
Therefore, based on the deep understanding to Landslide Deformation pattern, be necessary existing landslide depth displacement monitoring system to improve, its displacement measuring device can be made a response to slippage in time, it not only can be monitored large displacement, also can monitor micrometric displacement, improve deep displacement monitoring susceptibility and measure range, also reduce use cost, improve the fraction of monitoring of equipment operation simultaneously.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of landslide depth displacement monitoring system, its displacement measuring device can be made a response to slippage in time, it not only can be monitored large displacement, also can monitor micrometric displacement, improve deep displacement monitoring susceptibility and measure range, also reducing use cost simultaneously, improving the fraction of monitoring of equipment operation.
Landslide depth displacement monitoring system of the present utility model, comprise bracing wire, be located at displacement measuring device on the ground and be located at underground test tube, one end of described bracing wire is connected with described displacement measuring device, the other end is fixed in described test tube, described test tube and surface level are obliquely installed and make the bottom of described test tube be fixed on a sliding bed position through the slipping plane on landslide, and described test tube is can be with the gliding mass flexible pipe being out of shape that slides.
Further, the angle of inclination between described test tube and surface level is 3 °-35 °.
Further, two described bracing wires are at least set, and every described bracing wire is fixed on the position of different depth in described test tube, wherein the darkest described bracing wire is fixed on a described sliding bed position.
Further, described displacement measuring device comprises pulley, weight, displacement sensor for pull rope and data acquisition unit, be positioned at described bracing wire on the ground and walk around described pulley and be connected with described weight, the variation of described bracing wire displacement makes the magnitude of voltage change of described displacement sensor for pull rope and voltage signal is sent to described data acquisition unit.
Further, described displacement measuring device also comprise be connected with described data acquisition unit for data being sent to the data source of remote monitoring measuring point.
Further, also comprise the guard shield for going along with sb. to guard him described displacement measuring device, described guard shield is positioned at openend on the ground with described test tube and is connected.
Further, described bracing wire is indium steel wire, copper wire or nylon wire.
The beneficial effects of the utility model: landslide depth displacement monitoring system of the present utility model, test tube is the flexible pipe and the deeply extremely sliding bed of test tube bottom that tilt with surface level, test tube outer wall and landslide Rock And Soil close contact, test tube and sliding direction have the angle that angle is less, even if thereby the bracing wire in test tube also can be made a response to change in displacement in the situation that slide displacement is little, generation is enough to the displacement detecting, and ensures the degree of accuracy of displacement monitoring; The utility model is simple in structure, easy to use, and without burying dip angle of hole sensor micrometer device underground, only install displacement measuring device on earth's surface and can realize the monitoring of landslide micrometric displacement, instrument environments is good, not fragile and be convenient to safeguard, greatly reduce operating cost, improved the fraction of measuring accuracy, range and monitoring of equipment operation, had highly application value.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the landslide depth displacement monitoring system of the present embodiment, comprise bracing wire 2, be located at displacement measuring device on the ground and be located at underground test tube 1, one end of described bracing wire 2 is connected with described displacement measuring device, the other end is fixed in described test tube 1, and described test tube 1 is obliquely installed with surface level and makes the bottom of described test tube be fixed on test tube 1 described in sliding bed 4 positions through the slipping plane 3 on landslide is deformable flexible pipe for being subject to lateral thrust; Taking landslide as benchmark, the outside surface coming down on the ground, underground i.e. landslide is inner, and landslide is inner to be comprised as the gliding mass 8 of slipper, as the Rock And Soil motionless sliding bed 4 that underlies depending on when interfacial slipping plane 3 and gliding mass 8 slide that glides, and can determine the position of sliding bed 4 according to prior art; Test tube 1 lowermost end is deep into sliding bed 4 positions, wherein through one or more potential slipping planes 3; Test tube 1 has flexibility, easily deformable in the situation that being subject to less slippage, is subject to can stretching or frustrating in the situation of larger slippage disconnected, can use PVC, PE material to make; Test tube 1 adopts straight tube, is convenient to be embedded in landslide, is convenient to the layout of bracing wire 2 simultaneously; In the time that slipping plane 3 occurs displacement or gliding mass 8 part distortion down to slip, test tube 1 is run-off the straight distortion or breaks, the bracing wire 2 being fixed in test tube 1 is also subjected to displacement, and then drive bracing wire 2 entirety to occur extensional motion, movable information is by displacement measuring device record, thereby measures tilt displacement situation; Displacement measuring device is the measurement mechanism coordinating with bracing wire 2, can be that existing bracing wire displacement transducer or other can be realized measurement destination device, does not repeat them here; Test tube 1 is the flexible pipe tilting with surface level, even if the bracing wire 2 in test tube 1 also can be made a response to change in displacement in the situation that slide displacement is little, produces the displacement that is enough to detection, ensures the degree of accuracy of displacement monitoring.
In the present embodiment, the tilt angle alpha between described test tube 1 and surface level is 3 °-35 °; As shown in Figure 1, hole from the bearing of displacement measuring device, make test tube 1 tilt to stretch into the rear (i.e. contrary main sliding direction) on landslide, the bottom of last test tube 1 is positioned at sliding bed 4 positions; Tilt angle alpha should be considered the convenience of the concrete gradient, thickness of sliding body and the drilling construction on landslide, and being set is that 3 °-35 ° (the present embodiment is 10 °) can adapt to most of landslide, and applicability is strong.
In the present embodiment, two described bracing wires 2 are at least set, and every described bracing wire 2 is fixed on the position of described test tube 1 interior different depth, wherein the darkest described bracing wire 2 is fixed on described sliding bed 4 positions; So as Fig. 1, the present embodiment arranges three bracing wires 2 altogether, the darkest bracing wire 2 is fixed on test tube 1 bottom; Along three corresponding anchor heads 5 of length direction spaced set of test tube 1, bracing wire 2 is connected with anchor head 5 and realizes its fixing in test tube 1; Point of fixity can not change because of Landslide Deformation; One end of every bracing wire 3 respectively with one independently displacement measuring device be connected, with realize multiple spot detect; In the situation that thering is multiple slipping plane 3, the relative displacement of two bracing wires 2 is monitored, can also judge thus the position of a certain slipping plane 3, strengthen thus the detection performance of this landslide depth displacement monitoring system.
In the present embodiment, described displacement measuring device comprises pulley 61, weight 62, displacement sensor for pull rope 63 and data acquisition unit (not shown), be positioned at described bracing wire 2 on the ground and walk around described pulley 61 and be connected with described weight 62, thereby the variation of described bracing wire 2 displacements makes described pulley 61 rotate the magnitude of voltage change that corresponding angle makes described displacement sensor for pull rope 63 and voltage signal is sent to described data acquisition unit; Pulley 61 is fixed pulley, and weight 62 can use weight to form pre-load, ensures that the bracing wire 2 at pulley 61 two ends is in stress balance state; For keeping the linear state of bracing wire 2 in test tube 1, bracing wire 2 is the also direction conversion through another fixed pulley before being connected with pulley 61; Displacement sensor for pull rope 63 ranges are large and have a higher precision; When bracing wire 2 is moved, be embodied on displacement sensor for pull rope 63 as magnitude of voltage changes, electric signal is carried out A/D conversion by GPRS/GSM/3G data acquisition unit, exports after converting digital signal to, makes monitoring personnel can recognize the variation of landslide depth displacement; This is simple in structure, strong adaptability, be easy to lay, and measures not affected by environmently, and accuracy of observation is high.
In the present embodiment, described displacement measuring device also comprise be connected with described data acquisition unit for data being sent to the data source (not shown) of remote monitoring measuring point; GPRS/GSM/3G data source utilizes existing mobile communications network, transfers signals to the receiver of data processing centre (DPC), realizes Real-time Collection Monitoring Data under unattended environment in the wild, increases work efficiency.
In the present embodiment, also comprise the guard shield 7 for going along with sb. to guard him described displacement measuring device, described guard shield 7 is positioned at openend on the ground with described test tube 1 and is connected; Guard shield 7 forms protective action to displacement measuring device, alleviates the wearing and tearing of natural cause to displacement measuring device, extends its serviceable life; Guard shield 7 can be the housing of various shapes, does not limit at this; Guard shield 7 docks with test tube 1, makes whole monitoring system structure in aggregates, is convenient to install.
In the present embodiment, described bracing wire 2 is indium steel wire; The smooth surface of indium steel wire, even thickness, tensile strength are large, and wide material sources, with low cost, can ensure sensitivity, practicality and validity in landslide depth monitoring; The diameter of bracing wire 2 is preferably 0.6mm-1.2mm, determines according to specific needs, and bracing wire 2 is thinner, can, in the bracing wire of test tube 1 interior layout more than 2, can determine more accurately position and the displacement of slipping plane; Certainly, bracing wire 2 can also be used copper wire or nylon wire to replace.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (7)

1. a landslide depth displacement monitoring system, it is characterized in that: comprise bracing wire, be located at displacement measuring device on the ground and be located at underground test tube, one end of described bracing wire is connected with described displacement measuring device, the other end is fixed in described test tube, described test tube and surface level are obliquely installed and make the bottom of described test tube be fixed on a sliding bed position through the slipping plane on landslide, and described test tube is can be with the gliding mass flexible pipe being out of shape that slides.
2. landslide depth displacement monitoring system according to claim 1, is characterized in that: the angle of inclination between described test tube and surface level is 3 °-35 °.
3. landslide depth displacement monitoring system according to claim 2, it is characterized in that: two described bracing wires are at least set, and every described bracing wire is fixed on the position of different depth in described test tube, wherein the darkest described bracing wire is fixed on described sliding bed position.
4. landslide depth displacement monitoring system according to claim 3, it is characterized in that: described displacement measuring device comprises pulley, weight, displacement sensor for pull rope and data acquisition unit, be positioned at described bracing wire on the ground and walk around described pulley and be connected with described weight, the variation of described bracing wire displacement makes the magnitude of voltage change of described displacement sensor for pull rope and voltage signal is sent to described data acquisition unit.
5. landslide depth displacement monitoring system according to claim 4, is characterized in that: described displacement measuring device also comprise be connected with described data acquisition unit for data being sent to the data source of remote monitoring measuring point.
6. landslide depth displacement monitoring system according to claim 5, is characterized in that: also comprise the guard shield for going along with sb. to guard him described displacement measuring device, described guard shield is positioned at openend on the ground with described test tube and is connected.
7. landslide depth displacement monitoring system according to claim 6, is characterized in that: described bracing wire is indium steel wire, copper wire or nylon wire.
CN201420024524.XU 2014-01-15 2014-01-15 Landslide deep displacement monitoring system Expired - Fee Related CN203672311U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420024524.XU CN203672311U (en) 2014-01-15 2014-01-15 Landslide deep displacement monitoring system

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791805A (en) * 2014-01-15 2014-05-14 重庆市高新工程勘察设计院有限公司 Landslide deep position displacement monitoring system
CN104266576A (en) * 2014-10-11 2015-01-07 莫也兰 Binary output landslide monitoring sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791805A (en) * 2014-01-15 2014-05-14 重庆市高新工程勘察设计院有限公司 Landslide deep position displacement monitoring system
CN104266576A (en) * 2014-10-11 2015-01-07 莫也兰 Binary output landslide monitoring sensor
CN104266576B (en) * 2014-10-11 2016-08-17 莫也兰 Binary system output landslide monitoring sensor

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140625

Termination date: 20190115