CN117330021A - Bridge pier settlement measuring device and method for tidal flat area - Google Patents
Bridge pier settlement measuring device and method for tidal flat area Download PDFInfo
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- CN117330021A CN117330021A CN202311390065.7A CN202311390065A CN117330021A CN 117330021 A CN117330021 A CN 117330021A CN 202311390065 A CN202311390065 A CN 202311390065A CN 117330021 A CN117330021 A CN 117330021A
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- 238000004062 sedimentation Methods 0.000 claims description 9
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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Abstract
The invention relates to the technical field of bridge monitoring, in particular to a device and a method for measuring pier settlement in a tidal flat area. The height measurement detection mechanism is arranged on the unmanned aerial vehicle platform and is used for observing a known elevation control point and a settlement observation point; the intelligent foot rest is arranged below the unmanned plane platform; the central controller is in communication connection with the intelligent foot rest and the height measurement detection mechanism and is used for controlling the intelligent foot rest to level the unmanned aerial vehicle platform and sending out an instruction for controlling the height measurement detection mechanism to observe. The problems that in the prior art, bridge pier settlement measurement is carried out on the ground of a beach area by adopting a leveling method or a ranging triangular elevation measurement method, the walking difficulty of measurement staff is influenced by the large-area beach, the station setting is very difficult due to the influence of soil softness, and the precision is low are solved.
Description
Technical Field
The invention relates to the technical field of bridge monitoring, in particular to a device and a method for measuring pier settlement in a tidal flat area.
Background
The bridge approach in the river-crossing and sea-crossing long bridge beach area is generally composed of more than one hundred, hundreds or even thousands of piers, and the settlement measurement of numerous piers in the operation period is an important work with huge workload.
Traditionally, settlement measurement of a plurality of piers in a tidal flat area generally adopts a leveling method or a ranging triangulation elevation method. The leveling method or the ranging triangle elevation measurement method is adopted, namely, part of lanes are sealed on the bridge deck, a large number of measuring staff are used for transmitting the level and the elevation station by station along the bridge deck, the elevation change quantity is measured, the bridge deck is interfered by driving, and the precision and the work efficiency are low.
In particular, the bridge pier settlement measurement is carried out on the ground of the beach area by adopting a leveling method or a ranging triangular elevation measurement method, the walking difficulty of measuring staff is influenced by the large-area beach, the station setting is very difficult due to the influence of soil softness, and the precision is low and the efficiency is low. Therefore, the conventional settlement measurement method for a plurality of piers in the tidal flat area has the defects of low precision and low efficiency, and needs to be improved.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a device and a method for measuring pier settlement in a beach area, which can solve the problems that in the prior art, the ground of the beach area is subjected to pier settlement measurement by adopting a leveling method or a ranging triangular elevation measurement method, the walking of measuring staff is difficult due to the influence of large-area beach, the station setting is difficult due to the influence of soil softness, and the precision is low and the efficiency is low.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in one aspect, the invention provides a device for measuring pier settlement in a tidal flat area, comprising:
an unmanned aerial vehicle platform;
the height measurement detection mechanism is arranged on the unmanned aerial vehicle platform and is used for observing a known elevation control point and a settlement observation point;
the intelligent foot rest is arranged below the unmanned aerial vehicle platform;
and the central controller is in communication connection with the intelligent foot stand and the height measurement detection mechanism and is used for controlling the intelligent foot stand to level the unmanned aerial vehicle platform and sending out an instruction for controlling the height measurement detection mechanism to observe.
In some alternatives, the intelligent foot rest includes a plurality of telescopic legs arranged at intervals, the telescopic legs including:
one end of the telescopic sleeve is connected with the unmanned aerial vehicle platform, the telescopic sleeve comprises an inner sleeve and an outer sleeve sleeved outside the inner sleeve, and the inner sleeve can move relative to the outer sleeve;
the antiskid foot plate is arranged at the other end of the telescopic sleeve;
the telescopic piece is arranged in the telescopic sleeve, one end of the telescopic piece is connected with the unmanned aerial vehicle platform, and the other end of the telescopic piece is connected with the anti-skid foot plate;
and the range radar is arranged at the outer side of the telescopic sleeve or at the bottom of the unmanned aerial vehicle platform and is used for detecting the extension length of the telescopic sleeve.
In some alternative solutions, two positioning receivers are disposed on the unmanned aerial vehicle platform and are located on two sides of the height measurement detection mechanism, and are used for acquiring position and direction information of the unmanned aerial vehicle platform.
In some alternatives, the altimeter detection mechanism includes:
an automatic leveling base arranged in the center of the top of the unmanned aerial vehicle platform;
and the measuring robot is arranged on the automatic leveling base and is used for observing known elevation control points and settlement observation points.
In some alternatives, a plurality of prisms are used to mount on each known elevation control point and sedimentation observation point.
On the other hand, the invention also provides a method for measuring pier settlement of the beach area, which is implemented by using the pier settlement measuring device of the beach area, and comprises the following steps:
controlling the unmanned aerial vehicle platform to navigate to a landing place within a set range from a known elevation control point, and looking through at least two other known elevation control points;
measuring at least two other known elevation control points at a set range of the back visual distance landing place of the height measurement detection mechanism, and obtaining the atmospheric refraction coefficient and the elevation of the measuring station position by intersection;
and measuring the settlement observation point of the bridge pier in the tidal flat area through a height measurement detection mechanism based on the atmospheric refractive index and the elevation of the measuring station position, and obtaining the elevation of the settlement observation point.
In some alternative solutions, the measuring the known elevation control points in the set range of the landing ground of the back viewing distance of the height measurement detecting mechanism measures at least two other known elevation control points, and the intersecting obtains the atmospheric refraction coefficient of the measuring station position, including:
a known elevation control point in a set range of the back visual distance landing place of the height measurement detection mechanism is obtained;
measuring at least two other known elevation control points to obtain the slant distance from the height measurement detection mechanism to the at least two other known elevation control points;
and obtaining the atmospheric refractive index of the measuring station position according to the elevation of the height measurement detection mechanism and the inclined distance from the height measurement detection mechanism to at least two other known elevation control points.
In some alternatives, the obtaining the atmospheric refractive index of the station position according to the altitude of the altimeter detection mechanism and the slope distance from the altimeter detection mechanism to at least two other known altitude control points includes:
wherein,control point B for detecting the known elevation to which the mechanism is to be moved i Is (are) inclined distance->Control point B for calibrating a height measurement detection mechanism at a measuring station at a known elevation i Vertical angle of upper prism center, K i Control point B for observing known elevation of height measurement detection mechanism at measuring station i Atmospheric refractive index at the center of the upper prism, +.>For a known elevation control point B i V is the known elevation control point B i The prism height, R is the earth curvature radius, B i For an i-th known elevation control point of the at least two known elevation control points.
In some alternatives, according to formula H Station ＝H A +v+Ssinα Station Determining the elevation of the height measurement detection mechanism, wherein H A For the elevation of a known elevation control point within a set range from the touchdown point, v is the prism height at the known elevation control point, S is the distance from the station to the known elevation control point A, α Station The vertical angle of the prism center is controlled at a known elevation control point for the height measurement detection mechanism at the measuring station.
In some alternative schemes, after the elevation of the settlement observation point is obtained, the elevation of the corresponding settlement observation point is obtained again after the length of time is set, and the settlement of the pier is obtained by obtaining the elevation comparison of the settlement observation point twice.
Compared with the prior art, the invention has the advantages that: according to the scheme, the unmanned plane platform is used for carrying the height measurement detection mechanism, so that an instrument is not required to be manually arranged in the mud, and the measurement efficiency is greatly improved; the atmospheric refractive index is obtained by adopting the association measurement of the measuring station close-distance long-distance elevation control points, so that the measurement precision can be improved; the bridge deck settlement measurement device overcomes the defect of settlement measurement by utilizing the bridge deck, overcomes the defect of settlement measurement on the beach ground, greatly saves measuring staff, can also perform bridge pier settlement measurement at any time, and greatly meets the actual requirements of bridge pier settlement measurement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a bridge pier settlement measuring device in a tidal flat area according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an intelligent tripod according to an embodiment of the present invention.
In the figure: 1. an unmanned aerial vehicle platform; 2. a height measurement detection mechanism; 21. automatically leveling the base; 22. a measuring robot; 3. an intelligent foot rest; 31. a telescoping sleeve; 311. an outer sleeve; 312. an inner sleeve; 32. anti-skid foot plates; 33. a telescoping member; 34. a range radar; 4. a central controller; 5. locating the receiver; 6. a prism; 61. knowing the elevation control points; 62. sedimentation observation points; 7. a communication module; 8. a power supply; 9. and (3) pier.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, in one aspect, the present invention provides a bridge pier settlement measurement device for a tidal flat area, including: the unmanned aerial vehicle comprises an unmanned aerial vehicle platform 1, a height measurement detection mechanism 2, an intelligent foot stand 3 and a central controller 4.
The height measurement detection mechanism 2 is arranged on the unmanned aerial vehicle platform 1 and is used for observing a known height control point 61 and a sedimentation observation point 62; the intelligent foot rest 3 is arranged below the unmanned plane platform 1; the central controller 4 is in communication connection with the intelligent foot rest 3 and the height measurement detection mechanism 2 and is used for controlling the intelligent foot rest 3 to level the unmanned aerial vehicle platform 1 and sending out an instruction for controlling the height measurement detection mechanism 2 to observe.
In the scheme, the unmanned aerial vehicle platform 1 is controlled to navigate to a landing place within a set range from one known elevation control point 61, and is in communication with at least two other known elevation control points 61; measuring at least two other known elevation control points 61 at a known elevation control point 61 within a set range of the visual distance landing place behind the height measurement detection mechanism 2, and intersecting to obtain the atmospheric refractive index and the elevation of the measuring station position; and measuring the settlement observation point 62 of the bridge pier 9 of the tidal flat area by using the height measurement detection mechanism 2 based on the atmospheric refractive index and the elevation of the measuring station position, and obtaining the elevation of the settlement observation point 62. The unmanned aerial vehicle platform 1 is used for carrying the height measurement detection mechanism 2, so that an instrument is not required to be manually arranged in the mud, and the measurement efficiency is greatly improved; the atmospheric refractive index is obtained by adopting the association measurement of the measuring station close-distance long-distance elevation control points, so that the measurement precision can be improved; the bridge deck settlement measurement device overcomes the defect of settlement measurement by utilizing the bridge deck, overcomes the defect of settlement measurement on the beach ground, greatly saves measuring staff, can also perform bridge pier settlement measurement at any time, and greatly meets the actual requirements of bridge pier settlement measurement.
In this example, the central controller 4 may be disposed on the unmanned aerial vehicle platform 1, and the communication module 7 and the power supply 8 are configured on the unmanned aerial vehicle platform 1, and are connected with the central controller 4 through a remote terminal in a communication manner, so as to send a control instruction. The power supply 8 is used for supplying power to other power utilization components. The remote central controller 4 can also be adopted, the communication module 7 and the power supply 8 are configured on the unmanned aerial vehicle platform 1, and the remote central controller 4 is in communication connection with the intelligent foot stand 3 and the height measurement detection mechanism 2 and is used for sending and controlling the intelligent foot stand 3 to level the unmanned aerial vehicle platform 1 and sending an instruction for controlling the height measurement detection mechanism 2 to observe.
Landing places within the set range refer to landing places with a distance smaller than the set range, and the set value is generally 100m. Such that the refractive index of the light is substantially negligible.
As shown in fig. 2, in some alternatives, the smart foot rest 3 includes a plurality of spaced apart telescopic legs, including: a telescopic sleeve 31, a skid foot plate 32, a telescopic piece 33 and a range radar 34. One end of the telescopic sleeve 31 is connected with the unmanned aerial vehicle platform 1, the telescopic sleeve 31 comprises an inner sleeve 312 and an outer sleeve 311 sleeved outside the inner sleeve 312, and the inner sleeve 312 can move relative to the outer sleeve 311; the antiskid foot plate 32 is arranged at the other end of the telescopic sleeve 31; the telescopic piece 33 is arranged in the telescopic sleeve 31, one end of the telescopic piece is connected with the unmanned aerial vehicle platform 1, and the other end of the telescopic piece is connected with the antiskid foot plate 32; the range radar 34 is disposed outside the telescopic sleeve 31 or at the bottom of the unmanned aerial vehicle platform 1, and is used for detecting the extension length of the telescopic sleeve 31.
In this embodiment, the telescopic member 33 includes a jack, a servo motor, a control valve and a communication controller, detects the extension length of the telescopic sleeve 31 through the range radar 34, and then controls the extension length of the jack, and finally levels the unmanned aerial vehicle platform 1. In this example, an outer sleeve 311 is connected to the unmanned aerial vehicle platform 1, an inner sleeve 312 is connected to the antiskid foot plate 32, and a range radar 34 is provided outside the outer sleeve 311. The antiskid foot plate 32 adopts a sawtooth antiskid foot plate, and can be used for placing the unmanned aerial vehicle platform 1 to slide, so that the position is changed, and the final measurement result is affected.
In some alternative solutions, two positioning receivers 5 are provided on the unmanned aerial vehicle platform 1, and are located at two sides of the height measurement detection mechanism 2, so as to obtain the position and direction information of the unmanned aerial vehicle platform 1.
In this embodiment, through setting up two positioning receiver 5 on unmanned aerial vehicle platform 1, can acquire unmanned aerial vehicle platform 1's direction, can make the height measurement detection mechanism 2 on unmanned aerial vehicle platform 1 to be directed towards suitable direction, be favorable to the expansion of follow-up detection. In addition, the landing position of the unmanned aerial vehicle platform 1 can be controlled more accurately by adopting the two positioning receivers 5. In this example, the positioning receiver 5 is a Beidou positioning receiver.
In some alternatives, the altimeter detection mechanism 2 includes: the base 21 and the measuring robot 22 are automatically leveled. The automatic leveling base 21 is arranged in the center of the top of the unmanned aerial vehicle platform 1; the measuring robot 22 is provided on the automatic leveling base 21, and is configured to observe a known elevation control point 61 and a sedimentation observation point 62.
In the present embodiment, an automatic leveling base 21 is provided at the lower part of the measuring robot 22, and after the unmanned aerial vehicle platform 1 is leveled, the measuring robot 22 is automatically leveled, so that preparation is made for subsequent detection.
In this scheme, utilize the intelligent foot rest 3 that automatic safe base 21 and unmanned aerial vehicle platform 1 below set up to and unmanned aerial vehicle platform 1's cooperation, through unmanned aerial vehicle with the measuring robot 22 flight remove to detectable region, utilize intelligent foot rest 3 that unmanned aerial vehicle platform 1 below set up, with unmanned aerial vehicle platform 1 leveling, automatic safe base 21 will measure robot 22 leveling, can realize subsequent detection with measuring robot 22, need not manual handling instrument, can save time limit for a project and construction cost.
In some alternatives, a plurality of prisms 6 are used to mount on each of the known elevation control points 61 and sedimentation observation points 62.
In the present embodiment, a prism 6 is provided at each of the known elevation control point 61 and the sedimentation observation point 62 to facilitate the observation of the known elevation control point 61 and the sedimentation observation point 62 by the measuring robot 22.
On the other hand, the bridge pier settlement measuring method for the beach area, which utilizes the bridge pier settlement measuring device for the beach area, comprises the following steps:
s1: the drone platform 1 is controlled to navigate to a landing within a set range from one known elevation control point 61 and to look at least two other known elevation control points 61.
In this example, the unmanned aerial vehicle is used to fly and move the measurement robot 22 to a detectable area, that is, the unmanned aerial vehicle platform 1 is controlled to navigate to land within a set range from a known elevation control point 61, the set range is within 100m, the unmanned aerial vehicle platform 1 is leveled by using the intelligent foot stand 3 arranged below the unmanned aerial vehicle platform 1, the measurement robot 22 is leveled by the automatic leveling base 21, so that the subsequent detection can be realized by using the measurement robot 22, no manual handling instrument is needed, and the construction period and the construction cost can be saved.
S2: the height measurement detection mechanism 2 measures at least two other known elevation control points 61 at known elevation control points 61 within a set range of the visual distance landing place, and the atmospheric refractive index and elevation of the station position are obtained by intersection.
In some alternative embodiments, step S2 comprises:
s21: the height detection mechanism 2 is obtained from a known height control point 61 within a set range of the ground landing of the visual distance behind the height detection mechanism 2.
In this example, according to formula H Station ＝H A +v+Ssinα Station Determining the elevation of the height detection mechanism 2, wherein H A The elevation of a known elevation control point 61 (point a) within a set range for distance landing, v is the prism height at the known elevation control point, S is the distance from the station to the known elevation control point 61A, α Station The vertical angle of the prism center at the known elevation control point 61A is calibrated for the altimeter detection mechanism 2 at the measuring station.
S22: the other at least two known elevation control points 61 are measured to obtain the slant distance of the height detection mechanism 2 to the other at least two known elevation control points 61.
S23: and obtaining the atmospheric refractive index of the measuring station position according to the height of the height measurement detection mechanism 2 and the inclined distance from the height measurement detection mechanism 2 to at least two other known height control points 61.
Specifically, according to the formula:
and determining the atmospheric refraction coefficient of the station position.
Wherein,control point B for height measurement detection means 2 to known height i Is (are) inclined distance->Control point B for calibrating a known elevation of height detection mechanism 2 at a measuring station i Vertical angle of upper prism center, K i Control point B for observing a known elevation of altimeter detection means 2 at the measuring station i Atmospheric refractive index at the center of the upper prism, +.>For a known elevation control point B i V is the known elevation control point B i The prism height, R is the earth curvature radius, B i For the i-th known elevation control point 61 of the at least two known elevation control points 61.
S3: and measuring the settlement observation point 62 of the bridge pier 9 of the tidal flat area by using the height measurement detection mechanism 2 based on the atmospheric refractive index and the elevation of the measuring station position, and obtaining the elevation of the settlement observation point 62.
In this example, according to the obtained atmospheric refractive index K value of Gao Chengji of the measuring station, the measuring robot 22 sequentially measures the settlement observation points of the bridge piers 9 within a range of 2000 meters around the measuring station, and obtains the elevation of the settlement observation points of each bridge pier 9 within a range of 2000 meters around the measuring station.
After the station position measurement is completed, the unmanned aerial vehicle platform 1 can be retracted, the steps S1 to S2 are repeated, the heights of other stations are obtained, and the atmospheric refractive index K value of the other stations is obtained; according to the heights of other measuring stations and the atmospheric refractive index K value of the other measuring stations, the measuring robot 22 sequentially measures the settlement observation points of the bridge piers 9 in the range of 2000 meters around the measuring stations, and obtains the heights of the settlement observation points of the bridge piers 9 in the range of 2000 meters around the measuring stations, so that the height measurement of all bridge piers 9 in the beach area is completed.
S4: after the elevation of the settlement observation point 62 is obtained, the elevation corresponding to the settlement observation point 62 is obtained again after a set length of time, and the settlement of the pier 9 is obtained by comparing the elevations of the settlement observation point 62 obtained twice.
In summary, the present solution is achieved by controlling the unmanned aerial vehicle platform 1 to navigate to the landing place within a set range from one known elevation control point 61, and to communicate with at least two other known elevation control points 61; measuring at least two other known elevation control points 61 at a known elevation control point 61 within a set range of the visual distance landing place behind the height measurement detection mechanism 2, and intersecting to obtain the atmospheric refractive index and the elevation of the measuring station position; and measuring the settlement observation point 62 of the bridge pier 9 of the tidal flat area by using the height measurement detection mechanism 2 based on the atmospheric refractive index and the elevation of the measuring station position, and obtaining the elevation of the settlement observation point 62. The unmanned aerial vehicle platform 1 is used for carrying the height measurement detection mechanism 2, so that an instrument is not required to be manually arranged in the mud, and the measurement efficiency is greatly improved; the atmospheric refractive index is obtained by adopting the association measurement of the measuring station close-distance long-distance elevation control points, so that the measurement precision can be improved; the bridge deck settlement measurement device overcomes the defect of settlement measurement by utilizing the bridge deck, overcomes the defect of settlement measurement on the beach ground, greatly saves measuring staff, can also perform bridge pier settlement measurement at any time, and greatly meets the actual requirements of bridge pier settlement measurement.
In the description of the present application, 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 description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a beach district pier subsides measuring device which characterized in that includes:
an unmanned plane platform (1);
the height measurement detection mechanism (2) is arranged on the unmanned plane platform (1) and is used for observing a known height control point (61) and a sedimentation observation point (62);
the intelligent foot rest (3) is arranged below the unmanned aerial vehicle platform (1);
the central controller (4) is in communication connection with the intelligent foot rest (3) and the height measurement detection mechanism (2) and is used for controlling the intelligent foot rest (3) to level the unmanned aerial vehicle platform (1) and sending out an instruction for controlling the height measurement detection mechanism (2) to observe.
2. The beach pier settlement measurement device as claimed in claim 1, wherein the intelligent foot rest (3) comprises a plurality of telescopic legs arranged at intervals, the telescopic legs comprising:
a telescopic sleeve (31) with one end connected with the unmanned aerial vehicle platform (1), wherein the telescopic sleeve (31) comprises an inner sleeve (312) and an outer sleeve (311) sleeved outside the inner sleeve (312), and the inner sleeve (312) can move relative to the outer sleeve (311);
a skid-proof foot plate (32) provided at the other end of the telescopic sleeve (31);
a telescopic piece (33) which is arranged in the telescopic sleeve (31), one end of which is connected with the unmanned aerial vehicle platform (1), and the other end of which is connected with the antiskid foot plate (32);
and a range radar (34) which is arranged outside the telescopic sleeve (31) or at the bottom of the unmanned aerial vehicle platform (1) and is used for detecting the extension length of the telescopic sleeve (31).
3. The beach pier settlement measurement device as claimed in claim 1, wherein two positioning receivers (5) are arranged on the unmanned aerial vehicle platform (1) and are positioned on two sides of the height measurement detection mechanism (2) for acquiring the position and direction information of the unmanned aerial vehicle platform (1).
4. The beach pier settlement measurement apparatus as claimed in claim 1, wherein the height measurement mechanism (2) comprises:
an automatic leveling base (21) provided in the center of the top of the unmanned plane platform (1);
and a measuring robot (22) provided on the self-leveling base (21) for observing a known elevation control point (61) and a sedimentation observation point (62).
5. The beach pier settlement measurement apparatus as claimed in claim 1, characterized by a plurality of prisms (6) for mounting on each of the known elevation control points (61) and settlement observation points (62).
6. A method for measuring pier settlement in a tidal flat area, which is characterized by being implemented by the device for measuring pier settlement in the tidal flat area according to any one of claims 1 to 5, and comprising the following steps:
controlling the unmanned aerial vehicle platform (1) to navigate to a landing place within a set range from one known elevation control point (61) and to be in communication with at least two other known elevation control points (61);
a known elevation control point (61) in a set range of the rear view distance landing ground of the height measurement detection mechanism (2) is used for measuring at least two other known elevation control points (61), and the atmospheric refraction coefficient and the elevation of the station position are obtained through intersection;
and measuring a settlement observation point (62) of the bridge pier (9) in the tidal flat area through a height measurement detection mechanism (2) based on the atmospheric refractive index and the elevation of the measuring station position, and obtaining the elevation of the settlement observation point (62).
7. The method for measuring settlement of bridge piers in tidal flat area according to claim 6, wherein the measuring of the known elevation control points (61) within the set range of the landing ground of the back viewing distance of the height measurement detecting mechanism (2) and the measuring of the other at least two known elevation control points (61) can obtain the atmospheric refractive index of the measuring station position by intersection, comprises:
a known elevation control point (61) within a set range of the back sight distance landing ground of the height measurement detection mechanism (2) is used for obtaining the elevation of the height measurement detection mechanism (2);
measuring at least two other known elevation control points (61) to obtain the slant distance from the height measurement detection mechanism (2) to the at least two other known elevation control points (61);
and obtaining the atmospheric refractive index of the measuring station position according to the elevation of the height measurement detection mechanism (2) and the inclined distance from the height measurement detection mechanism (2) to at least two other known elevation control points (61).
8. The method for measuring settlement of piers in tidal flat area according to claim 7, wherein the obtaining the atmospheric refractive index of the measuring station position according to the height of the height measuring and detecting mechanism (2) and the inclination distance from the height measuring and detecting mechanism (2) to at least two other known height control points (61) comprises:
wherein,for detecting a known elevation control point B to which the mechanism (2) is moved i Is (are) inclined distance->Control point B for calibrating a known elevation of an altimeter detection means (2) at a measuring station i Vertical angle of upper prism center, K i For the height measurement detection mechanism (2) to observe a known height control point B at the measuring station i Atmospheric refractive index at the center of the upper prism, +.>For a known elevation control point B i V is the known elevation control point B i The prism height, R is the earth curvature radius, B i Is the i-th known elevation control point (61) of the at least two known elevation control points (61).
9. The method for measuring pier settlement of tidal flat area according to claim 7, wherein the formula H is Station ＝H A +v+S sinα Station Determining the elevation of the height detection mechanism (2), wherein H A For the elevation of a known elevation control point (61) within a set range from the landing zone, v is the prism height at the known elevation control point, S is the distance from the measuring station to the point A of the known elevation control point (61), alpha Station For height measurement the detection means (2) is aimed at a vertical angle of the prism centre at a known elevation control point (61) at the measuring station.
10. The method for measuring settlement of piers in tidal flat area according to claim 6, wherein after the elevation of the settlement observation point (62) is obtained, the elevation corresponding to the settlement observation point (62) is obtained again after a set length of time, and the settlement of piers (9) is obtained by comparing the elevation obtained by the settlement observation point (62) twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311390065.7A CN117330021A (en) | 2023-10-24 | 2023-10-24 | Bridge pier settlement measuring device and method for tidal flat area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311390065.7A CN117330021A (en) | 2023-10-24 | 2023-10-24 | Bridge pier settlement measuring device and method for tidal flat area |
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| CN117330021A true CN117330021A (en) | 2024-01-02 |
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