CN110940305B - Landslide displacement monitoring system - Google Patents
Landslide displacement monitoring system Download PDFInfo
- Publication number
- CN110940305B CN110940305B CN202010103616.7A CN202010103616A CN110940305B CN 110940305 B CN110940305 B CN 110940305B CN 202010103616 A CN202010103616 A CN 202010103616A CN 110940305 B CN110940305 B CN 110940305B
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- CN
- China
- Prior art keywords
- elastic medium
- landslide
- pressure sensor
- fixed rod
- monitoring system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
Abstract
The invention relates to the field of natural disaster monitoring, in particular to a landslide displacement monitoring system which comprises a measuring device, a power supply, a wireless data transmitting device, a data receiving terminal and an alarm module. The measuring device comprises a fixed rod, an accommodating box, a movable cover, a pressure sensor, an elastic medium and a strain type sensor; the fixed rod is inserted into the bedrock surface, and the accommodating boxes are fixed on the fixed rod at intervals; the elastic medium is positioned inside the containing box. According to the invention, the soil loosening condition is detected through the change of the shape of the elastic medium of the measuring device, the condition of the landslide body displacement is detected through the change of the pressure values of the movable covers at the two ends, the whole process from soil loosening to landslide body displacement can be clearly monitored, and the whole measuring and alarming process is simple and clear.
Description
Technical Field
The invention relates to the field of natural disaster monitoring, in particular to a landslide monitoring system.
Background
The landslide displacement monitoring method mainly comprises manual monitoring, instrument monitoring and remote automatic monitoring. The manual monitoring workload is large, and large manual measurement errors exist; the displacement of the landslide can be measured accurately by instrument monitoring, but special monitoring equipment is mostly needed, and the operation has certain difficulty; with the rapid development of science and technology, remote automatic monitoring systems are also beginning to appear, which can realize continuous observation, automatic acquisition, storage, printing and display of observation data, but the cost of such monitoring equipment is higher at present, and the monitoring process of some monitoring systems is more complicated.
Improvements are made to the above problems.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and the technical solution of the present invention is:
a landslide displacement monitoring system comprises a measuring device, a power supply, a wireless data transmitting device, a data receiving terminal and an alarm module;
the measuring device comprises a fixed rod, an accommodating box, a movable cover, a pressure sensor, an elastic medium and a strain type sensor;
the fixing rod is inserted into the bedrock surface, the top of the fixing rod vertically extends upwards into the landslide body, the accommodating boxes are fixed on the fixing rod at intervals, and one or more fixing positions can be arranged according to the corresponding positions of the weak structural surface obtained through geological exploration;
the two movable covers of the accommodating box along the direction of the mountain slope height trend can turn over along the top of the accommodating box, a fixed rod is arranged in the movable covers, and a pressure sensor is arranged on the outer side of each movable cover;
the elastic medium is positioned in the accommodating box and fixed on a fixed rod of the accommodating box, the surface of the elastic medium is provided with a strain sensor, the movable covers on the accommodating box are in an opened state by the elastic medium in an unstressed state, after the measuring device is inserted into a bedrock surface, the two movable covers are extruded by a mountain body into a closed state, and the elastic medium is in an extruded and deformed state;
before landslide occurs, mountain soil and stones are loosened, the movable covers are pushed open by elastic media, the deformation condition of the elastic media is predicted according to the strain type sensors, the high soil and stones move to the lower part when the landslide occurs, and the pressure difference borne by the pressure sensors on the two movable covers is increased, so that the landslide proceeding state is judged;
the pressure sensor and the strain gauge sensor are connected with a power supply and a wireless data transmitting device through cables, the wireless data transmitting device transmits data to a data receiving terminal, and the data receiving terminal is connected with an alarm module.
The invention has the following beneficial effects:
1. according to the invention, the soil loosening condition is detected through the change of the shape of the elastic medium of the measuring device, the condition of the landslide body displacement is detected through the change of the pressure values of the movable covers at the two ends, the whole process from soil loosening to landslide body displacement can be clearly monitored, and the whole measuring and alarming process is simple and clear;
2. the landslide forecasting method is simple in structure and low in use and manufacturing cost, monitoring results are favorable for clarifying and judging development trends of different stages of landslide displacement, and the existing landslide forecasting method is enriched and verified;
3. the monitoring system of the invention adopts a grade alarm monitoring mode, so that landslide monitoring and personnel arrangement and scheduling are more reasonable and ordered.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a detailed plan structure of the measuring device of the present invention.
Fig. 3 is a schematic perspective view of the measuring device of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.
As shown in fig. 1-3, a landslide displacement monitoring system comprising: measuring device 1, power 2, wireless data transmitting device 3.
The measuring device 1 includes: the device comprises a fixed rod 11, an accommodating box 12, a movable cover 13, a pressure sensor 14, an elastic medium 15 and a strain gauge sensor 16.
The bottom of the fixed rod 11 is fixedly arranged in the bedrock surface 41, and the top of the fixed rod 11 vertically extends upwards into the landslide body 42.
The number of the accommodating boxes 12 is multiple, the accommodating boxes 12 are arranged and fixed on the fixing rod 11 at intervals up and down, the fixing shaft 121 is arranged in the middle of each accommodating box, and the different depths of landslide possibly occurring in the accommodating boxes 12 can be predicted according to needs.
The top of the accommodating box 12 is provided with a slope surface so as to reduce the downward pressure of the falling soil on the accommodating box 12.
The movable covers 13 are two side plates on the containing box, the movable covers 13 are arranged on the containing box 12 along the top of the landslide body 42 to two sides of the slope toe in the horizontal direction, the upper ends of the movable covers are hinged with the upper end of the containing box 12, the movable covers 13 can be turned over along the upper ends of the movable covers, and the two movable covers 13 are respectively provided with a pressure sensor 14.
The elastic medium 15 is fixedly arranged in the accommodating box 12 through a fixed shaft 121 in the accommodating box 12, the strain sensor 16 is arranged on the surface of the elastic medium 15, in an initial state, the movable covers 13 at two ends are extruded by soil, when the movable covers 13 are in a tightly covered state, the elastic medium 15 is extruded by the movable covers 13 at two ends to form an ellipsoid, when soil is loosened, the elastic medium 15 bounces to slowly open the movable covers 13 at two ends, wherein the strain sensor 16 is used for detecting the deformation of the elastic medium 15 so as to judge whether the soil is loosened, when a landslide body 42 is displaced, the pressure sensor 14 is used for detecting the pressure of the soil moving to impact the movable covers 13 at two ends, and when the landslide occurs, the soil is inclined downwards from a high position to a low position, so that when the pressure of the movable cover 13 at one end is greater than the pressure of the movable cover 13 at the other end, the possibility of displacement of the landslide, when the pressure of the movable cover 13 at one end is significantly greater than that of the movable cover 13 at the other end, it indicates that the sliding mass 42 may be displaced significantly.
The pressure sensor 14 and the strain gauge sensor 16 are connected with the power supply 2 through cables, meanwhile, the pressure sensor 14 and the strain gauge sensor 16 are connected with the wireless data transmitting device 3 through cables, the wireless data transmitting device 3 transmits monitored data of the pressure sensor 14 and the strain gauge sensor 16 to a data receiving terminal (not shown in the figure) through GSM in real time, and the data receiving terminal is connected with an alarm module (not shown in the figure).
The working principle of the invention is as follows:
firstly, surveying the landslide body 42, confirming a key monitoring position, and drilling a monitoring hole from the earth surface of the landslide body 42 to the bedrock surface 41; the measuring device 1 is arranged in a corresponding monitoring hole, wherein when the strain sensor 16 detects that the elastic medium 15 expands and recovers, the soil is loosened, and at the moment, the alarm device gives a primary alarm to inform workers of improving the vigilance; when the value of the pressure sensor 14 of the movable cover 13 at one end is larger than that of the pressure sensor 14 of the movable cover 13 at the other end, the possibility of displacement of the landslide body 42 is high, and at the moment, the alarm device gives a secondary alarm to inform nearby people of timely evacuation; when the value of the pressure sensor 14 on the movable cover 13 at one end is obviously greater than that of the pressure sensor 14 on the movable cover 13 at the other end, the situation shows that the landslide body 42 is likely to have large displacement, and the alarm device carries out three-level alarm.
Claims (4)
1. A landslide displacement monitoring system comprising: the device comprises a measuring device (1), a power supply (2), a wireless data transmitting device (3), a data receiving terminal and an alarm module;
the measuring device (1) comprises: the device comprises a fixed rod (11), an accommodating box (12), a movable cover (13), a pressure sensor (14), an elastic medium (15) and a strain gauge sensor (16);
the bottom of the fixed rod (11) is fixedly arranged in the bedrock surface (41), and the top of the fixed rod (11) vertically extends upwards into the landslide body (42);
the method is characterized in that:
the accommodating box (12) is fixedly arranged on the fixed rod (11), and a fixed shaft (121) is arranged in the accommodating box;
the movable covers (13) are two side plates on the containing box, the movable covers (13) are arranged on the containing box (12) along the slope top of the sliding body (42) to two sides of the slope toe in the horizontal direction, the upper ends of the movable covers are hinged with the upper end of the containing box (12), and each movable cover (13) is provided with a pressure sensor (14);
the elastic medium (15) is fixedly arranged in the accommodating box (12) through a fixed shaft (121) in the accommodating box (12), the strain gauge sensor (16) is arranged on the surface of the elastic medium (15), the movable covers (13) at two ends are extruded by soil in an initial state, the movable covers (13) are in a covering state, and the elastic medium (15) is extruded and deformed by the movable covers (13) at two ends;
the pressure sensor (14) and the strain gauge sensor (16) are connected with the power supply (2) through cables, meanwhile, the pressure sensor (14) and the strain gauge sensor (16) are connected with the wireless data transmitting device (3) through cables, the wireless data transmitting device (3) transmits monitored data of the pressure sensor (14) and the strain gauge sensor (16) to the data receiving terminal through GSM in real time, and the data receiving terminal is connected with the alarm module.
2. A landslide displacement monitoring system according to claim 1 wherein: the accommodating boxes (12) are multiple in number and are arranged at intervals up and down along the fixing rod (11).
3. A landslide displacement monitoring system according to claim 1 wherein: the top of the accommodating box (12) is provided with a slope surface.
4. A landslide displacement monitoring system according to claim 1 wherein: the elastic medium (15) is set to be in a shape with a small upper end and a large lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103616.7A CN110940305B (en) | 2020-02-20 | 2020-02-20 | Landslide displacement monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103616.7A CN110940305B (en) | 2020-02-20 | 2020-02-20 | Landslide displacement monitoring system |
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| Publication Number | Publication Date |
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| CN110940305A CN110940305A (en) | 2020-03-31 |
| CN110940305B true CN110940305B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010103616.7A Active CN110940305B (en) | 2020-02-20 | 2020-02-20 | Landslide displacement monitoring system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013803B (en) * | 2020-09-22 | 2022-06-21 | 中铁二十四局集团安徽工程有限公司 | Landslide displacement measuring device and measuring method thereof |
| CN113566881B (en) * | 2021-07-06 | 2022-06-07 | 中国地质大学（武汉） | Device and method for arranging multiple sensors outside slide body drill hole |
| CN113990041A (en) * | 2021-10-15 | 2022-01-28 | 广东工业大学 | Low-power consumption landslide monitoring alarm device |
| CN114111666B (en) * | 2021-11-30 | 2022-08-12 | 东北大学 | Geotechnical engineering side slope displacement detection device |
| CN116448050B (en) * | 2023-06-16 | 2023-08-18 | 四川川核地质工程有限公司 | Monitoring device and monitoring method for landslide deformation |
| CN117367342B (en) * | 2023-12-07 | 2024-03-12 | 中国地质调查局水文地质环境地质调查中心 | Landslide displacement monitoring system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7436169B2 (en) * | 2005-09-06 | 2008-10-14 | International Business Machines Corporation | Mechanical stress characterization in semiconductor device |
| JP2011232119A (en) * | 2010-04-27 | 2011-11-17 | Sakata Denki | Landslide measurement device |
| CN105300343B (en) * | 2015-12-04 | 2018-05-22 | 郑州双杰科技股份有限公司 | Tandem sequence section deformation monitoring sensing device |
| CN106643630B (en) * | 2016-11-17 | 2019-04-09 | 太原理工大学 | It is a kind of monitoring the back production of gob side entry retaining obturation during stability system and method |
| CN208043045U (en) * | 2018-04-20 | 2018-11-02 | 湖北绿源工程设计有限公司 | A kind of early warning system for dam displacement monitoring |
| CN209639869U (en) * | 2019-04-28 | 2019-11-15 | 中铁十八局集团第五工程有限公司 | A kind of spoil ground STABILITY MONITORING device |
| CN110196042A (en) * | 2019-06-24 | 2019-09-03 | 重庆交通大学 | Inclination measurement device and side slope based on laser ranging tilt monitoring method |
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