CN114111697B - Monitoring and early warning device and monitoring and early warning method for toppling deformation body - Google Patents
Monitoring and early warning device and monitoring and early warning method for toppling deformation body Download PDFInfo
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- CN114111697B CN114111697B CN202111422234.1A CN202111422234A CN114111697B CN 114111697 B CN114111697 B CN 114111697B CN 202111422234 A CN202111422234 A CN 202111422234A CN 114111697 B CN114111697 B CN 114111697B
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
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Abstract
The invention discloses a monitoring and early warning device and a monitoring and early warning method for a dumping deformation body, which relate to the technical field of slope monitoring and have the technical scheme that: the device comprises a processor, a main substrate and two curved substrates; the two curved surface substrates are distributed on two sides of the main substrate, and the sphere centers corresponding to the two curved surface substrates are positioned obliquely below the two sides of the main substrate; the same side surfaces of the main substrate and the two curved substrates are respectively provided with a plurality of strain gauge sensors, and the strain gauge sensors are electrically connected with the processor. When the tilting deformation occurs, the main substrate and the two curved substrates can adaptively and cooperatively deform, the strain gauge sensors in one row are started to detect simultaneously, deformation data in corresponding dimensions can be obtained, and after the data are subjected to analog analysis, conversion and other processes, the detection result for visually representing the tilting deformation condition can be directly obtained, so that the efficient and simple online monitoring of the tilting deformation is realized, the whole structure is convenient to install, maintain and operate, and the application cost is low.
Description
Technical Field
The invention relates to the technical field of side slope monitoring, in particular to a monitoring and early warning device and a monitoring and early warning method for a toppling deformation body.
Background
The toppling deformation body is a typical deformation phenomenon of the reversely-toppled layered rock slope, under the influence of human engineering activities and the like, the slope deformation is further aggravated, and along with the continuous development of deformation, collapse or superficial local landslide geological disasters can be generated, and stepped sliding and pulling crack landslide is finally generated.
At present, the research on the technology of monitoring and early warning of the pouring deformation body is less, the common monitoring means is to regularly measure the monitoring piers poured on the pouring deformation body through measuring instruments such as theodolites, level gauges and total stations, so as to analyze the deformation development condition of the pouring deformation body, and the method has the following problems: the field operation is large, inconvenient in unfavorable weather and night monitoring, low in accuracy, unable to accurately obtain the deformation depth and the bending inclination change condition of the toppling deformation body, and unable to provide uninterrupted monitoring and timely early warning. In addition, there is also a technology of combining a strain gauge sensor with a part of detection sensors such as azimuth and angle to realize monitoring of the tilting deformation body, and the workload and the working difficulty of installation and periodical maintenance are increased due to more types of required electronic products; at the same time, the processing and conversion of various data is relatively complex, which is disadvantageous for the wide-range monitoring of the pouring deformation.
Therefore, how to research and design a monitoring and early-warning device and a monitoring and early-warning method for the toppling deformation body, which can overcome the defects, are the problems which are needed to be solved at present.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the toppling deformation body monitoring and early warning device and the monitoring and early warning method, which have the characteristics of uninterrupted multipoint monitoring, simple structure, convenient maintenance, high data processing efficiency and the like, and can accurately obtain the deformation depth and the bending inclination change condition of the toppling deformation body and early warn in time.
The technical aim of the invention is realized by the following technical scheme:
in a first aspect, a toppling deformation body monitoring and early warning device is provided, which comprises a processor, a main substrate and two curved substrates;
the two curved surface substrates are distributed on two sides of the main substrate, and the sphere centers corresponding to the two curved surface substrates are positioned obliquely below the two sides of the main substrate;
the same side surfaces of the main substrate and the two curved substrates are respectively provided with a plurality of strain gauge sensors, and the strain gauge sensors are electrically connected with the processor;
the strain gauge sensors of the main substrate and the two curved substrates are distributed in a linear mode to form a first sensor array, a second sensor array and a third sensor array;
the processor is used for comprehensively analyzing the strain values detected by the strain gauge sensors in the first sensor array, the second sensor array and the third sensor array from three different dimensions to obtain the detection result of the toppling deformation body, and outputting an early warning signal when the detection result exceeds a corresponding threshold value.
Further, the main substrate is a straight steel sheet.
Further, the main substrate is an arc-shaped steel sheet, and the circle center of the arc-shaped steel sheet is distributed on the same side with the sphere center of the curved substrate.
Further, the inclination angle value of the two curved substrates relative to the main substrate ranges from 20 degrees to 30 degrees.
Further, the output end of the processor is provided with any combination of a signal emitter, an alarm and a display lamp.
Further, the strain gauge sensors are fixed on the surfaces of the corresponding substrates in an adhesive mode, and the end portions between the adjacent strain gauge sensors are fixedly connected through connectors.
Further, the connector comprises a base and a fixing bolt, slots are formed in one symmetrical side face of the base, the fixing bolt is in threaded fit with the base, and the end portion of the fixing bolt can extend into the slots.
Further, the two ends of the main base plate are provided with mounting plates, and the mounting plates are provided with at least one mounting hole in a penetrating mode.
Further, the processor comprises a sequence conversion unit, a single-dimension analysis unit, a dumping analysis unit and a monitoring and early warning unit;
the sequence conversion unit is used for respectively converting the strain values detected by each strain gauge sensor in the first sensor array, the second sensor array and the third sensor array into corresponding first sequences, second sequences and third sequences;
the single-dimension analysis unit is used for respectively carrying out simulation analysis on the strain values in the first sequence, the second sequence and the third sequence according to the paving track parameters of the main substrate and the two curved substrates to obtain deformation information, and adjusting the corresponding deformation information into corresponding single-dimension dumping deformation information according to the paving azimuth parameters of the main substrate and the two curved substrates;
the pouring analysis unit is used for fusing three single-dimension pouring deformation information according to the relative position parameters of the main substrate and the two curved substrates to obtain a detection result of the pouring deformation body;
and the monitoring and early warning unit is used for analyzing the detection result into a plurality of index results, comparing and analyzing the index results with corresponding threshold values one by one, and outputting early warning signals if the index results exceed the threshold values.
In a second aspect, a method for monitoring and early warning of a toppling deformation body is provided, comprising the following steps:
acquiring deformation data of the slope rock mass according to the dumping deformation monitoring and early warning device in the first aspect;
comprehensively analyzing the strain values detected by each strain gauge sensor in the first sensor array, the second sensor array and the third sensor array from three different dimensions to obtain detection results of the toppling deformation body;
and outputting an early warning signal when the detection result exceeds a corresponding threshold value.
Compared with the prior art, the invention has the following beneficial effects:
according to the toppling deformation monitoring and early warning device, the strain gauge sensors are arranged on the main substrate and the two curved substrates distributed in three dimensions, when toppling deformation occurs, the main substrate and the two curved substrates can adaptively and cooperatively deform, the strain gauge sensors are started to detect simultaneously, deformation data in corresponding dimensions can be obtained, and after the data are subjected to analog analysis, conversion and other processing, the detection result of the toppling deformation condition can be directly obtained, so that efficient and simple online monitoring of the toppling deformation is realized, the whole structure is convenient to install and maintain, the application cost is low, and the toppling deformation monitoring device can be widely popularized and applied.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure in an embodiment of the present invention;
FIG. 2 is a schematic view of a connector according to an embodiment of the present invention;
fig. 3 is a schematic distribution diagram of a main substrate and two curved substrates in an embodiment of the present invention.
In the drawings, the reference numerals and corresponding part names:
1. a mounting plate; 2. a mounting hole; 3. a main substrate; 4. a curved substrate; 5. a strain gauge sensor; 6. a connector; 7. a base; 8. a slot; 9. and (5) fixing bolts.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1: a toppling deformation body monitoring and early warning device is shown in fig. 1, and comprises a processor, a main substrate 3 and two curved substrates 4. The two curved surface substrates 4 are distributed on two sides of the main substrate 3, and the centers of spheres O1 and O2 corresponding to the two curved surface substrates 4 are located obliquely below two sides of the main substrate 3, wherein A, B, C is a point of symmetry of the main substrate 3 and the two curved surface substrates 4 on the same straight line, and B is A, C. The same side surfaces of the main substrate 3 and the two curved substrates 4 are respectively provided with a plurality of strain gauge sensors 5, and the strain gauge sensors 5 are electrically connected with the processor. The strain gauge sensors 5 of the main substrate 3 and the two curved substrates 4 are distributed in a linear mode to form a first sensor array, a second sensor array and a third sensor array. And the processor is used for comprehensively analyzing the strain values detected by each strain gauge sensor 5 in the first sensor array, the second sensor array and the third sensor array from three different dimensions to obtain the detection result of the toppling deformation body, and outputting an early warning signal when the detection result exceeds a corresponding threshold value.
It should be noted that, in the case where the flexibility of the curved substrate 4 satisfies the requirement, the curved substrate 4 may be replaced by an arc-shaped substrate.
As an alternative embodiment, the main substrate 3 is a straight steel sheet, and may be replaced by other materials meeting the flexibility requirement.
As another alternative embodiment, the main substrate 3 is an arc-shaped steel sheet, and the center of the arc-shaped steel sheet is distributed on the same side as the center of the sphere of the curved substrate 4. It should be noted that, in order to meet the requirement of the deformation limit, the edge of the curved substrate 4 may be correspondingly curved or designed.
In this embodiment, as shown in fig. 3, the inclination angle values m and n of the two curved substrates 4 relative to the main substrate 3 are in the range of 20-30 degrees.
In this embodiment, the output end of the processor is provided with any combination of a signal emitter, an alarm and a display lamp. The on-site early warning can be realized, and the remote early warning can also be realized.
In the present embodiment, as shown in fig. 1, the strain gauge sensors 5 are adhesively fixed to the respective substrate surfaces, and the end portions between the adjacent strain gauge sensors 5 are fixedly connected by the connectors 6.
As shown in fig. 1, the connector 6 includes a base 7 and a fixing bolt 9, a symmetrical side of the base 7 is provided with a slot 8, the fixing bolt 9 is in threaded engagement with the base 7, and an end portion of the fixing bolt can extend into the slot 8.
As shown in fig. 1, mounting plates 1 are arranged at two ends of a main substrate 3, and at least one mounting hole 2 is formed in the mounting plates 1 in a penetrating manner.
In this embodiment, the processor includes a sequence conversion unit, a single-dimensional analysis unit, a dumping analysis unit, and a monitoring and early warning unit. The sequence conversion unit is configured to convert the strain values detected by the strain gauge sensors 5 in the first sensor array, the second sensor array, and the third sensor array into corresponding first sequences, second sequences, and third sequences, respectively. The single-dimension analysis unit is used for respectively carrying out simulation analysis on the strain values in the first sequence, the second sequence and the third sequence according to the laying track parameters of the main substrate 3 and the two curved substrates 4 to obtain deformation information, and adjusting the corresponding deformation information into corresponding single-dimension dumping deformation information according to the laying azimuth parameters of the main substrate 3 and the two curved substrates 4. And the dumping analysis unit is used for fusing three single-dimension dumping deformation information according to the relative position parameters of the main substrate 3 and the two curved substrates 4 to obtain a detection result of the dumping deformation body. And the monitoring and early warning unit is used for analyzing the detection result into a plurality of index results, comparing and analyzing the index results with corresponding threshold values one by one, and outputting early warning signals if the index results exceed the threshold values.
Example 2: a method for monitoring and early warning of a pouring deformation body comprises the following steps:
s1: the toppling deformation monitoring and early warning device according to embodiment 1 collects deformation data of the slope rock mass;
s2: comprehensively analyzing the strain values detected by each strain gauge sensor 5 in the first sensor array, the second sensor array and the third sensor array from three different dimensions to obtain a detection result of the toppling deformation body;
s3: and outputting an early warning signal when the detection result exceeds a corresponding threshold value.
Specifically, first, the strain values detected by the strain gauge sensors 5 in the first sensor array, the second sensor array, and the third sensor array are converted into corresponding first, second, and third sequences, respectively. And then, according to the laying track parameters of the main substrate 3 and the two curved substrates 4, the strain values in the first sequence, the second sequence and the third sequence are respectively subjected to simulation analysis to obtain deformation amount information, and according to the laying azimuth parameters of the main substrate 3 and the two curved substrates 4, the corresponding deformation amount information is adjusted to corresponding single-dimension dumping deformation information. And then, according to the relative position parameters of the main substrate 3 and the two curved substrates 4, the three single-dimension pouring deformation information is fused to obtain the detection result of the pouring deformation body. And finally, analyzing the detection result into a plurality of index results, comparing the index results with corresponding thresholds one by one, and outputting an early warning signal if the index results exceed the thresholds.
Working principle: according to the invention, the strain gauge sensors 5 are arranged on the main substrate 3 and the two curved substrates 4 distributed in three dimensions, when the toppling deformation occurs, the main substrate 3 and the two curved substrates 4 can adaptively and cooperatively deform, the strain gauge sensors 5 are started to detect simultaneously, deformation data in corresponding dimensions can be obtained, and after the data are subjected to analog analysis, conversion and other treatments, the detection result of the toppling deformation condition can be directly obtained, so that the efficient and simple online monitoring of the toppling deformation is realized, the whole structure is convenient to install and maintain, the application cost is low, and the method can be widely popularized and applied in the toppling deformation monitoring.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The tilting deformation body monitoring and early warning device is characterized by comprising a processor, a main substrate (3) and two curved surface substrates (4);
the two curved surface substrates (4) are distributed on two sides of the main substrate (3), and the sphere centers corresponding to the two curved surface substrates (4) are positioned obliquely below the two sides of the main substrate (3);
the same side surfaces of the main substrate (3) and the two curved substrates (4) are respectively provided with a plurality of strain gauge sensors (5), and the strain gauge sensors (5) are electrically connected with the processor;
the strain gauge sensors (5) of the main substrate (3) and the two curved substrates (4) are distributed linearly to form a corresponding first sensor array, a second sensor array and a third sensor array;
the processor is used for comprehensively analyzing the strain values detected by each strain gauge sensor (5) in the first sensor array, the second sensor array and the third sensor array from three different dimensions to obtain the detection result of the toppling deformation body, and outputting an early warning signal when the detection result exceeds a corresponding threshold value;
the processor comprises a sequence conversion unit, a single-dimension analysis unit, a dumping analysis unit and a monitoring and early warning unit;
the sequence conversion unit is used for respectively converting the strain values detected by each strain gauge sensor (5) in the first sensor array, the second sensor array and the third sensor array into corresponding first sequences, second sequences and third sequences;
the single-dimension analysis unit is used for respectively carrying out simulation analysis on strain values in the first sequence, the second sequence and the third sequence according to the paving track parameters of the main substrate (3) and the two curved substrates (4) to obtain deformation information, and adjusting the corresponding deformation information into corresponding single-dimension dumping deformation information according to the paving azimuth parameters of the main substrate (3) and the two curved substrates (4);
the pouring analysis unit is used for fusing three single-dimension pouring deformation information according to the relative position parameters of the main substrate (3) and the two curved substrates (4) to obtain a detection result of the pouring deformation body;
and the monitoring and early warning unit is used for analyzing the detection result into a plurality of index results, comparing and analyzing the index results with corresponding threshold values one by one, and outputting early warning signals if the index results exceed the threshold values.
2. The toppling deformation body monitoring and early warning device according to claim 1, wherein the main base plate (3) is a straight steel sheet.
3. The toppling deformation body monitoring and early warning device according to claim 1 is characterized in that the main base plate (3) is an arc-shaped steel sheet, and the circle center of the arc-shaped steel sheet is distributed on the same side with the sphere center of the curved base plate (4).
4. A toppling deformation body monitoring and early warning device according to claim 3, characterized in that the inclination angle of the two curved substrates (4) relative to the main substrate (3) is 20-30 degrees.
5. The device for monitoring and early warning of the toppling deformation body according to claim 1, wherein the output end of the processor is provided with any combination of a signal emitter, an alarm and a display lamp.
6. The toppling deformation body monitoring and early warning device according to claim 1, wherein the strain gauge sensors (5) are fixed on the surface of the corresponding substrate in an adhering manner, and the end parts between the adjacent strain gauge sensors (5) are fixedly connected through connectors (6).
7. The toppling deformation body monitoring and early warning device according to claim 6, wherein the connector (6) comprises a base (7) and a fixing bolt (9), slots (8) are formed in one symmetrical side face of the base (7), the fixing bolt (9) is in threaded fit with the base (7), and the end portion of the fixing bolt can extend into the slots (8).
8. The toppling deformation body monitoring and early warning device according to claim 1, wherein mounting plates (1) are arranged at two ends of the main base plate (3), and at least one mounting hole (2) is formed in the mounting plates (1) in a penetrating mode.
9. A method for monitoring and early warning of a pouring deformation body is characterized by comprising the following steps:
the toppling deformation body monitoring and early warning device according to any one of claims 1 to 8 acquires deformation data of a slope rock body;
comprehensively analyzing from three different dimensions according to strain values detected by each strain gauge sensor (5) in the first sensor array, the second sensor array and the third sensor array to obtain detection results of the toppling deformation body;
and outputting an early warning signal when the detection result exceeds a corresponding threshold value.
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| EP3581882A1 (en) * | 2018-06-12 | 2019-12-18 | Technische Universität Wien | Flexion beam flex measurement method and test structure for for carrying out such a method |
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| CN1157594C (en) * | 1999-07-09 | 2004-07-14 | Nec东金株式会社 | Capacitive strain sensor and method for using same |
| JP5654789B2 (en) * | 2009-11-24 | 2015-01-14 | 住友理工株式会社 | Bending sensor and deformation shape measuring method |
| JP5970868B2 (en) * | 2012-03-05 | 2016-08-17 | 株式会社豊田中央研究所 | Dummy measuring device |
| JP6325940B2 (en) * | 2014-08-06 | 2018-05-16 | 株式会社安藤・間 | Empty pile stone wall deformation measuring device and method |
| CN107610427A (en) * | 2017-08-23 | 2018-01-19 | 佛山市顺德区中山大学研究院 | A kind of posture monitoring device based on high deformation strain gauge transducer |
| JP7186690B2 (en) * | 2019-11-21 | 2022-12-09 | 三菱電機株式会社 | Board warp detector and board warp detection program |
| CN212806987U (en) * | 2020-10-20 | 2021-03-26 | 中国电建集团成都勘测设计研究院有限公司 | Shield tunnel surrounding rock deformation advanced monitoring structure |
| CN214094036U (en) * | 2021-06-11 | 2021-08-31 | 北京市劳动保护科学研究所 | Fluid pipeline leakage on-line monitoring and positioning device |
| CN113639651A (en) * | 2021-08-24 | 2021-11-12 | 煤炭科学研究总院 | Strip mine slope stability prediction device and prediction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3581882A1 (en) * | 2018-06-12 | 2019-12-18 | Technische Universität Wien | Flexion beam flex measurement method and test structure for for carrying out such a method |
| CN109186445A (en) * | 2018-08-15 | 2019-01-11 | 中国地质大学（武汉） | The test equipment and its application method of wireless monitor carbonaceous rock side slope surface deformation |
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