CN113587823B - Method and device for judging landslide displacement measured by laser displacement meter - Google Patents
Method and device for judging landslide displacement measured by laser displacement meter Download PDFInfo
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- CN113587823B CN113587823B CN202110817640.1A CN202110817640A CN113587823B CN 113587823 B CN113587823 B CN 113587823B CN 202110817640 A CN202110817640 A CN 202110817640A CN 113587823 B CN113587823 B CN 113587823B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention relates to the technical field of ground disaster monitoring, in particular to a method and a device for judging landslide displacement measured by a laser displacement meter, wherein the method for judging landslide displacement measured by the laser displacement meter comprises a measuring body and a reflecting plate, the measuring body is provided with the laser displacement meter, the laser displacement meter can emit signals to the reflecting plate, and the method for judging landslide displacement measured by the laser displacement meter comprises the following steps: acquiring a current inclination angle of a measuring body and a first displacement variation value of a laser displacement meter; obtaining a second displacement variation value of the measuring body according to the current inclination angle of the measuring body; and judging that the laser displacement meter is out of target or the laser displacement meter is measuring landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value. According to the method for judging the landslide displacement measured by the laser displacement meter, the data measured by the laser displacement meter can be accurately judged by measuring the current inclination angle of the body and the first displacement change value of the laser displacement meter, so that the calibration and correction are facilitated.
Description
Technical Field
The invention relates to the technical field of ground disaster monitoring, in particular to a method and a device for judging landslide displacement measured by a laser displacement meter.
Background
Landslide is a widely distributed common address disaster, and frequently causes casualties and economic losses. Therefore, landslide monitoring is an important link for providing basis for disaster prevention and reduction and landslide control, wherein surface displacement measurement is the most important monitoring means. The displacement variation of the landslide is one of key physical quantities describing the current state of the landslide, the landslide stability can be analyzed by monitoring the dynamic displacement variation of the landslide, and the security guard range of the landslide is judged, so that the landslide is evaluated, and early warning preparation is timely carried out.
Among the various methods of surface displacement monitoring, the GPS global positioning system is more widely used. The GPS performs space rear intersection measurement through signals transmitted by satellites, determines the three-dimensional coordinates of the monitoring points, and achieves the purpose of monitoring deformation by tracking the position change of the three-dimensional coordinates. The monitoring precision of the method can reach millimeter level, the visible displacement rule of the landslide body range can be accurately analyzed, but in high mountain or complex terrain areas, the satellite signals are easily shielded, the satellite signals are greatly influenced by weather, the power is high, the energy consumption is high, and large storage batteries or solar panels are required to be equipped for field operation.
With the development of application technology, low-energy-consumption and high-precision optical and photoelectric measuring instruments are adopted, and landslide displacement monitoring is realized through measuring angles and distances. The laser displacement meter is a technology newly developed in recent years, and in landslide displacement monitoring, the laser displacement meter is used for measuring landslide displacement change, so that higher measurement accuracy can be realized, and the laser displacement meter is low in energy consumption, so that the laser displacement meter can be suitable for field operation. However, the conventional laser displacement meter is usually used alone, and under a complex geographical environment in the field, the problem of off-target easily occurs, so that the laser displacement meter cannot output correct data, and an effective and simple method is not available for accurately judging the data measured by the laser displacement meter, so that verification and correction cannot be performed.
Disclosure of Invention
One of the technical problems to be solved by the invention is as follows: the problem that the existing laser displacement meter cannot accurately judge.
(II) technical scheme
In order to solve the technical problems, the invention provides a method for judging landslide displacement by a laser displacement meter, which comprises a measuring body and a reflecting plate, wherein the measuring body is provided with the laser displacement meter which can emit signals to the reflecting plate, and the method for judging landslide displacement by the laser displacement meter comprises the following steps:
acquiring a current inclination angle of the measuring body and a first displacement variation value of the laser displacement meter;
obtaining a second displacement variation value of the measuring body according to the current inclination angle of the measuring body;
and judging that the laser displacement meter is out of target or the laser displacement meter is in landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
According to one embodiment of the present invention, the obtaining the second displacement variation value of the measuring body according to the current inclination angle of the measuring body includes:
obtaining the length of the measuring point of the measuring body from the ground surface;
and obtaining a second displacement change value of the measuring body according to the length and the current inclination angle of the measuring body.
According to one embodiment of the invention, the obtaining the second displacement variation value of the measuring body from the length and the current inclination angle of the measuring body comprises:
according to the length L, the current inclination angle θ of the measuring body is determined by: s=l×sin θ to obtain a second displacement variation value of the measurement body.
According to one embodiment of the present invention, the step of determining that the first displacement variation value is greater than the second displacement variation value by more than a preset value includes:
the first displacement variation value is at least twice the second displacement variation value.
According to an embodiment of the present invention, the determining the laser displacement meter off-target or the laser displacement meter measuring landslide further includes:
and acquiring the angle of the laser displacement meter for measuring the displacement change of the landslide.
According to one embodiment of the present invention, the acquiring the angle of displacement change of the laser displacement meter landslide includes:
the angle of the displacement change of the landslide can be obtained by the first displacement change value and the second displacement change value.
According to an embodiment of the present invention, the determining that the laser displacement meter is off-target or the laser displacement meter is landslide according to the first displacement variation value being greater than the second displacement variation value by more than a preset value further includes:
acquiring the distance from the laser displacement meter to the reflecting plate;
and judging that the laser displacement meter measures landslide according to the fact that the distance from the laser displacement meter to the reflecting plate is larger than a preset distance value, and controlling the alarm to alarm.
According to an embodiment of the present invention, the determining that the laser displacement meter is off-target or the laser displacement meter is landslide according to the first displacement variation value being greater than the second displacement variation value by more than a preset value further includes:
acquiring the current moisture value of the slope body inserted by the measuring body;
and judging that the laser displacement meter measures landslide according to the condition that the current moisture value of the slope exceeds a preset moisture value, and controlling an alarm to give an alarm.
The invention also provides a device for judging the landslide displacement measured by the laser displacement meter, which is used for executing the method for judging the landslide displacement measured by the laser displacement meter: wherein, judge the device of laser displacement meter measurement landslide displacement includes: the inclination sensor is used for acquiring the current inclination angle of the measuring body; the controller is used for obtaining a second displacement change value of the measuring body according to the current inclination angle of the measuring body; and judging that the laser displacement meter is out of target or the laser displacement meter is in landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
According to one embodiment of the invention, the tilt sensor is arranged on the measuring body and the tilt sensor is located at the bottom of the measuring body.
The invention has the beneficial effects that: in the method for judging landslide displacement by the laser displacement meter, the current inclination angle of the measuring body and the first displacement change value of the laser displacement meter are measured; and judging that the laser displacement meter is out of target or the laser displacement meter is in landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value. The current inclination angle of the body and the first displacement change value of the laser displacement meter are measured, so that the data measured by the laser displacement meter can be accurately judged, and the calibration and the correction are facilitated.
Drawings
The advantages of the foregoing and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for determining landslide displacement measured by a laser displacement meter provided by the application;
FIG. 2 is a schematic side view of a device for determining landslide displacement by a laser displacement meter;
fig. 3 is a sliding plan view of the device for determining the landslide displacement measured by the laser displacement meter.
The reference numerals are as follows:
1. the laser displacement meter comprises a laser displacement meter 2, a reflecting plate 3, a measuring body 4, an inclination angle sensor 5 and a slope body.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
As shown in fig. 1 and 2, the present invention provides a method for determining a landslide displacement measured by a laser displacement meter 1, which includes a measuring body 3 and a reflecting plate 2, wherein the measuring body 3 is provided with the laser displacement meter 1, and the laser displacement meter 1 can emit a signal to the reflecting plate 2, and the method for determining the landslide displacement measured by the laser displacement meter 1 includes the following steps: s1, acquiring a current inclination angle of a measuring body 3 and a first displacement variation value of a laser displacement meter 1; s2, obtaining a second displacement change value of the measuring body 3 according to the current inclination angle of the measuring body 3; and S3, judging that the laser displacement meter 1 is out of target or the laser displacement meter 1 measures landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
Specifically, the laser displacement meter 1 measures the landslide displacement by measuring in a pulse manner. And transmitting laser pulses at landslide monitoring points through a transmitting diode in the laser displacement sensor, irradiating the laser pulses onto a remote fixed target reflecting plate 2, and returning the laser pulses to a receiver of the laser displacement sensor after being reflected by the transmitting plate. And recording a time interval from the laser emission time to the time when the reflected light is received, and calculating the absolute distance between the laser displacement monitoring point and the target according to the transmission time of the light in the air to monitor the displacement of the landslide. Under the field operation condition, the distance between the laser displacement meter 1 and the fixed target total reflection panel is not more than 10 meters, and the distance can be properly expanded to be within 30 meters under the specific condition. The included angle between the laser displacement meter 1 and the normal of the fixed total reflection surface plate can be up to 70 degrees.
Specifically, according to the first displacement variation value being greater than the second displacement variation value by more than the preset value, various conditions can be judged: one situation is that the laser displacement meter 1 may be off-target or judging that the target is moving, in which case it is necessary to verify that the target is still fixed in place; the other is that the landslide point has an overall parallel landslide trend, and equipment of the monitoring point moves in parallel along with the landslide, so that the displacement is changed but the inclination angle is not changed obviously, and the data monitoring frequency can be increased correspondingly under the condition.
According to one embodiment of the present invention, obtaining the second displacement variation value of the measuring body 3 from the current inclination angle of the measuring body 3 includes:
obtaining the length of the measuring point of the measuring body 3 from the ground surface;
a second displacement variation value of the measuring body 3 is obtained from the length and the current inclination angle of the measuring body 3.
According to one embodiment of the invention, obtaining the second displacement variation value of the measuring body 3 from the length and the current inclination angle of the measuring body 3 comprises:
according to the length L, the current inclination angle θ of the body 3 is measured by: s=l×sin θ to obtain a second displacement variation value of the measurement body 3.
Specifically, when the inclination angle of the measuring body 3 is changed to incline in a direction away from the reflection plate 2, the inclination angle change angle θ is monitored 1 The distance from the current measuring body 3 measured by the laser displacement meter 1 to the reflecting plate 2 is D 1 . Knowing the length L of the tilt sensor 4 from the surface, the current second displacement value S can be calculated 1 The method comprises the following steps: s is S 1 ＝L*sinθ 1 The first displacement value measured by the laser displacement meter 1 is: ΔD of 1 ＝D 1 -D 0 Wherein D is 0 Distance from original measuring body 3 to reflecting plate 2 measured for laser displacement meter 1And (5) separating. When the inclination angle of the measuring body 3 is changed to incline in a direction approaching the reflecting plate 2, the inclination angle change angle is monitored to be theta 2 The distance from the current measuring body 3 measured by the laser displacement meter 1 to the reflecting plate 2 is D 2 Then the current second displacement value S can be calculated 2 The method comprises the following steps: s is S 2 ＝L*sinθ 2 The first displacement value measured by the laser displacement meter 1 is: ΔD of 2 ＝D 0 -D 2 。
In view of the accuracy of the tilt sensor 4 being five thousandths, when the measuring body 3 is 0.5m long, the corresponding tilt displacement accuracy is about 0.05mm, which is an order of magnitude higher than the laser displacement meter 1. Therefore, when the monitored inclination angle changes, the original displacement plus the inclination angle change displacement can be used as the corrected actual displacement value delta D 1 '：ΔD 1 '＝D 0 +S 1 Wherein S is 1 A second displacement variation value for a direction away from the reflection plate 2. When the inclination angle change of the measuring body 3 is inclined in a direction approaching the reflecting plate 2, the inclination angle change displacement can be subtracted from the original displacement as the corrected actual displacement value Δd 2 '：ΔD 2 '＝D 0 -S 2 Wherein S is 2 A second displacement variation value for the direction of approaching the reflection plate 2
According to one embodiment of the present invention, the step of determining that the first displacement variation value is greater than the second displacement variation value by more than a preset value comprises:
the first displacement variation value is at least twice the second displacement variation value.
Specifically, if the first displacement variation value is greater than the second displacement variation value by more than 2 orders of magnitude or more, it can be determined that the laser displacement meter 1 is off-target or the laser displacement meter 1 is measuring landslide.
As shown in fig. 3, according to an embodiment of the present invention, the determination of the laser displacement meter 1 off-target or the laser displacement meter 1 measuring landslide further includes:
the angle at which the laser displacement meter 1 measures the displacement change of the landslide is obtained.
Specifically, the landslide displacement and inclination angle are monitored to obtain the landslide displacement change angle.
According to one embodiment of the present invention, acquiring the angle at which the laser displacement meter 1 measures the displacement change of the landslide includes:
the angle of the laser displacement meter 1 for measuring the displacement change of the landslide can be obtained by the first displacement change value and the second displacement change value.
According to an embodiment of the present invention, according to the fact that the first displacement variation value is greater than the second displacement variation value and exceeds the preset value, the judgment of the laser displacement meter 1 off-target or the laser displacement meter 1 measuring landslide further includes:
acquiring the distance between the laser displacement meter 1 and the reflecting plate 2;
and judging that the laser displacement meter 1 measures landslide according to the fact that the distance from the laser displacement meter 1 to the reflecting plate 2 is larger than a preset distance value, and controlling an alarm to alarm.
Specifically, the laser displacement meter 1 to the reflecting plate 2 are larger than a preset distance value, and early warning is performed.
According to an embodiment of the present invention, according to the fact that the first displacement variation value is greater than the second displacement variation value and exceeds the preset value, the judgment of the laser displacement meter 1 off-target or the laser displacement meter 1 measuring landslide further includes:
acquiring the current moisture value of a slope body 5 inserted in the measuring body 3;
and judging that the laser displacement meter 1 measures landslide according to the fact that the current moisture value of the slope body 5 exceeds the preset moisture value, and controlling an alarm to alarm.
Specifically, a laser displacement meter 1 is integrated at the top end of the measuring body 3, and landslide displacement dynamic change is monitored. The measuring body 3 internally comprises 10cm,20cm,30cm,40cm multi-layer soil moisture and temperature sensors, providing multi-depth soil moisture and temperature monitoring. The accuracy of the tilt sensor 4 is five thousandths. And providing inclination angle change monitoring data of the monitoring points, and sending alarm information in time when the soil moisture reaches a certain degree.
The invention also provides a device for judging the landslide displacement measured by the laser displacement meter 1, which is used for executing the method for judging the landslide displacement measured by the laser displacement meter 1: wherein, judge the device of laser displacement meter 1 survey landslide displacement includes: the inclination sensor 4, the inclination sensor 4 is used for obtaining the current inclination angle of the measuring body 3; a controller for obtaining a second displacement variation value of the measuring body 3 according to the current inclination angle of the measuring body 3; and judging that the laser displacement meter 1 is out of target or the laser displacement meter 1 measures landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
When the device for judging the landslide displacement by the laser displacement meter 1 is installed, a hole with the required depth is required to be formed in a pre-buried place, the measuring body 3 is put in and filled with slurry, and the required data can be measured when the water content of the slurry is equal to the water content around the slurry.
According to one embodiment of the invention, the tilt sensor 4 is arranged on the measuring body 3, and the tilt sensor 4 is located at the bottom of the measuring body 3.
Specifically, the inclination sensor 4 is arranged at the bottom of the measuring body 3, can measure inclination angles of different depths, and when the inclination angle reaches a certain degree, the equipment can automatically send out geological early warning signals to achieve early warning effect.
The device for judging the landslide displacement measured by the laser displacement meter 1 improves the accuracy and the precision of displacement change monitoring data. The integrated laser displacement sensor, the inclination angle sensor 4 and the multi-depth soil moisture sensor are integrated, the multi-sensor monitors landslide states simultaneously, and compared with a single sensor, the multi-sensor monitoring can display and record landslide change dynamics more accurately. The innovative simultaneous laser displacement data and the displacement change data calculated by the inclination angle are further analyzed, and landslide change trend of the position of the monitoring point in a period of time is read, so that the possible occurrence direction of the landslide is predicted. The measuring body 3 is externally connected with a solar panel to provide power support for the device.
In summary, in the method for determining the landslide displacement measured by the laser displacement meter 1 provided by the application, the current inclination angle of the body 3 and the first displacement variation value of the laser displacement meter 1 are measured; and judging that the laser displacement meter 1 is out of target or the laser displacement meter 1 measures landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value. By measuring the current inclination angle of the body 3 and the first displacement variation value of the laser displacement meter 1, the data measured by the laser displacement meter 1 can be accurately judged, so that the calibration and correction are facilitated.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present 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 relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The method for judging the landslide displacement measured by the laser displacement meter is characterized by comprising the following steps of:
acquiring a current inclination angle of a measuring body and a first displacement variation value of the laser displacement meter;
obtaining a second displacement variation value of the measuring body according to the current inclination angle of the measuring body, including: obtaining the length L of the measuring point of the measuring body from the ground surface, and measuring the current inclination angle of the bodyBy:obtaining a second displacement variation value of the measuring body;
and judging that the laser displacement meter is out of target or the laser displacement meter is in landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
2. The method for determining landslide displacement of claim 1, wherein:
the step of exceeding the preset value according to the first displacement variation value being larger than the second displacement variation value comprises the following steps:
the first displacement variation value is at least twice the second displacement variation value.
3. The method for determining landslide displacement of claim 1, wherein: the judging of the laser displacement meter off-target or the laser displacement meter measuring landslide further comprises:
and acquiring the angle of the laser displacement meter for measuring the displacement change of the landslide.
4. The method for determining landslide displacement of claim 3 wherein: the step of obtaining the angle of the laser displacement meter for measuring the displacement change of the landslide comprises the following steps:
the angle of the displacement change of the landslide can be obtained by the first displacement change value and the second displacement change value.
5. The method for determining landslide displacement of claim 1, wherein: the step of judging whether the laser displacement meter is out of target or the laser displacement meter is landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value further comprises:
acquiring the distance between the laser displacement meter and the reflecting plate;
and judging that the laser displacement meter measures landslide according to the fact that the distance from the laser displacement meter to the reflecting plate is larger than a preset distance value, and controlling the alarm to alarm.
6. The method for determining landslide displacement of claim 1, wherein: the step of judging whether the laser displacement meter is out of target or the laser displacement meter is landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value further comprises:
acquiring the current moisture value of the slope body inserted by the measuring body;
and judging that the laser displacement meter measures landslide according to the condition that the current moisture value of the slope exceeds a preset moisture value, and controlling an alarm to give an alarm.
7. A device for determining a landslide displacement by a laser displacement meter, the device for determining a landslide displacement by a laser displacement meter being configured to execute the method for determining a landslide displacement by a laser displacement meter according to claim 1: the device for judging the landslide displacement by the laser displacement meter is characterized by comprising the following components: the inclination sensor is used for acquiring the current inclination angle of the measuring body; the controller is used for obtaining a second displacement change value of the measuring body according to the current inclination angle of the measuring body; and judging that the laser displacement meter is out of target or the laser displacement meter is in landslide according to the fact that the first displacement variation value is larger than the second displacement variation value and exceeds a preset value.
8. The device for determining landslide displacement of claim 7 wherein: the inclination sensor is arranged on the measuring body, and is positioned at the bottom of the measuring body.
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| CN116295037B (en) * | 2023-04-11 | 2023-11-14 | 广东省水利水电建设有限公司 | Ecological slope monitoring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000045678A (en) * | 1998-07-28 | 2000-02-15 | Ohbayashi Corp | Heading collapse alarming system |
| CN102059589A (en) * | 2010-10-21 | 2011-05-18 | 大连理工大学 | Device and method for detecting inclination angle error of laser displacement sensor |
| CN208998743U (en) * | 2018-11-01 | 2019-06-18 | 付金乐 | Landslide surface displacement monitoring device based on plate |
| CN112281935A (en) * | 2020-10-19 | 2021-01-29 | 中冶建筑研究总院有限公司 | Dynamic monitoring system and method for fan foundation ring |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007309899A (en) * | 2006-05-22 | 2007-11-29 | Keisoku Res Consultant:Kk | Noncontact-type vibration/displacement measuring device |
| CN102735214A (en) * | 2012-06-30 | 2012-10-17 | 交通运输部公路科学研究所 | Inclination sensor adopting laser displacement sensor design |
| CN109405747A (en) * | 2018-11-01 | 2019-03-01 | 付金乐 | Landslide surface displacement monitoring method and device based on plate |
| CN213363764U (en) * | 2020-11-13 | 2021-06-04 | 武汉市安耐久土木科技有限公司 | Monitoring device for shield tunnel surface subsidence |
| CN112525773B (en) * | 2020-11-17 | 2022-12-23 | 中铁十一局集团第三工程有限公司 | Monitoring system capable of monitoring track displacement of floating plate |
-
2021
- 2021-07-20 CN CN202110817640.1A patent/CN113587823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000045678A (en) * | 1998-07-28 | 2000-02-15 | Ohbayashi Corp | Heading collapse alarming system |
| CN102059589A (en) * | 2010-10-21 | 2011-05-18 | 大连理工大学 | Device and method for detecting inclination angle error of laser displacement sensor |
| CN208998743U (en) * | 2018-11-01 | 2019-06-18 | 付金乐 | Landslide surface displacement monitoring device based on plate |
| CN112281935A (en) * | 2020-10-19 | 2021-01-29 | 中冶建筑研究总院有限公司 | Dynamic monitoring system and method for fan foundation ring |
Non-Patent Citations (1)
| Title |
|---|
| 南京孟北治理区边坡滑坡灾害变形监测与分析;王晓辉等;《港口科技》;29-32 * |
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