A cross-sea combined distributed measurement system and method

Abstract

This invention discloses a cross-sea combined distributed measurement system and method, relating to the field of bridge construction technology. The cross-sea combined distributed measurement system includes multiple instrument platforms and multiple reference platforms. The multiple instrument platforms are spaced apart on one side of the bridge pier, and each instrument platform is equipped with a first total station on its top. The multiple reference platforms are spaced apart between the instrument platforms and the bridge pier, and each reference platform is equipped with a first target on its top. Each bridge pier is equipped with a second total station on its top. The reference elevation of the reference platform is measured using the first total station of two adjacent instrument platforms and the first target of one reference platform. Based on the reference elevation of the two reference platforms, the elevation of the bridge pier is measured using the second total station of one bridge pier and the first targets of the two adjacent reference platforms. By setting up multiple reference platforms and multiple instrument platforms to perform measurements together, the number of instrument platforms set up in the sea is reduced, the construction period is shortened, and the measurement cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a cross-sea combined distributed measurement system and method. Background Technology

[0002] Cross-sea high-speed railway bridges span thousands or even tens of kilometers of water. The bridge piers are far from the coast and numerous. During the construction of the high-speed railway, it is required to conduct multiple settlement observations on each bridge pier for up to six months to assess the stability of the bridge pier. Long-distance settlement measurement is difficult and the accuracy is hard to guarantee.

[0003] In existing technologies, marine instrument platforms are generally used as the reference points for settlement measurement, and total stations are used for trigonometric leveling to measure the absolute settlement of long-span sea-crossing bridges. However, marine instrument platforms need to be deployed every 200-500 meters, resulting in a large number of platforms required, long construction periods, and high measurement costs. Summary of the Invention

[0004] This invention provides a cross-sea combined distributed measurement system and method to solve the technical problem in the existing technology that the number of marine instrument platforms required for the measurement station piers that use marine instrument platforms as benchmarks for settlement measurement is large, resulting in long construction periods and high measurement costs.

[0005] Firstly, a cross-ocean combined distributed measurement system is provided, comprising: Multiple instrument platforms are spaced apart on one side of the bridge pier, and each instrument platform is equipped with a first total station on its top. Multiple reference platforms are spaced apart between the instrument platform and the bridge pier, and each reference platform is equipped with a first target on its top; Each of the bridge piers is equipped with a second total station at its top; The reference elevation of the reference platform is measured using a first total station on two adjacent instrument platforms and a first target on the reference platform; The elevation of the pier is measured using a second total station on one of the piers and a first target on the two adjacent reference platforms, based on the reference elevations of the two reference platforms.

[0006] In some embodiments, each of the instrument platforms further includes: Pipe pile assembly, wherein the pipe pile assembly is disposed on the seabed; A workbench is provided on the pipe pile assembly; A support assembly is provided vertically on the workbench, and the support assembly is used to fix the first total station.

[0007] In some embodiments, each of the instrument platforms further includes: The second target is mounted on the support assembly and located above the first total station.

[0008] In some embodiments, each of the benchmark platforms further includes: A reference pile is set vertically on the seabed, and the first beacon is provided on the top of the reference pile; A cylindrical tube, which is fitted over the outside of the reference pile.

[0009] Secondly, a cross-ocean combined distributed measurement method is provided, using the aforementioned cross-ocean combined distributed measurement system, including: The reference elevation of the reference platform is measured using a first total station on two adjacent instrument platforms and a first target on a reference platform. Based on the reference elevations of the two reference platforms, the elevation of the pier is measured using a second total station on one pier and the first target on the two adjacent reference platforms.

[0010] In some embodiments, measuring the reference elevation of the reference platform using a first total station on two adjacent instrument platforms and a first target on a reference platform includes: Obtain the known elevation of each instrument platform; Based on the known elevation of each instrument platform, the atmospheric refractive index is measured and calculated using the first total station of two adjacent instrument platforms; The forward intersection elevation difference of the reference platform is measured using a first total station on two adjacent instrument platforms and a first target on a reference platform; The reference elevation of the reference platform is obtained by correcting the intersection elevation difference of the reference platform based on the atmospheric refraction coefficient.

[0011] In some embodiments, the step of measuring and calculating the atmospheric refractive index using a first total station on two adjacent instrument platforms based on the known elevation of each instrument platform includes: Based on the known elevation of each instrument platform, the first total station of two adjacent instrument platforms is used to measure the forward elevation difference, the backward elevation difference, and the real-time elevation difference between the two instrument platforms. The control elevations of the two instrument platforms are calculated based on the forward and backward elevation differences between the two adjacent instrument platforms. The atmospheric refractive index is calculated based on the real-time elevation difference between two adjacent instrument platforms, the control elevation of the two instrument platforms, and the differential trigonometric elevation.

[0012] In some embodiments, measuring the forward intersection elevation difference of the reference platform using a first total station on two adjacent instrument platforms and a first target on a reference platform includes: The vertical angle and slope distance from the two instrument platforms to the reference platform are measured using a first total station on two adjacent instrument platforms and a first target on a reference platform. The forward intersection elevation difference of the reference platform is calculated based on the vertical angle and slant distance from the two instrument platforms to the reference platform.

[0013] In some embodiments, measuring the elevation of a bridge pier using a second total station on one pier and first targets on two adjacent reference platforms, based on the reference elevations of two reference platforms, includes: Based on the reference elevations of the two reference platforms, the second total station of one pier and the first target of the two adjacent reference platforms are used to measure the intersection elevation difference of the pier to the rear of the two reference platforms respectively. The elevation of the bridge pier was calculated based on the height difference between the pier and the two reference platforms.

[0014] In some embodiments, the step of measuring the intersection elevation difference between the bridge pier and the rear of the two reference platforms using a second total station on one pier and a first target on each of the two adjacent reference platforms, based on the reference elevations of the two reference platforms, includes: Based on the reference elevations of the two reference platforms, the vertical angle and slant distance from the pier to the two reference platforms are measured using a second total station on one pier and the first targets on the two adjacent reference platforms. The rear intersection height difference between the bridge pier and the two reference platforms is calculated based on the vertical angle and slant distance from the bridge pier to each of the two reference platforms.

[0015] The beneficial effects of the technical solution provided by this invention include: This invention provides a cross-sea combined distributed measurement system and method. The cross-sea combined distributed measurement system includes multiple instrument platforms and multiple reference platforms. The multiple instrument platforms are spaced apart on one side of a bridge pier. Each instrument platform is equipped with a first total station on its top. The multiple reference platforms are spaced apart between the instrument platforms and the bridge piers. Each reference platform is equipped with a first target on its top. Each bridge pier is equipped with a second total station on its top. The reference elevation of a reference platform is measured using the first total stations of two adjacent instrument platforms and the first target of one reference platform. Based on the reference elevations of the two reference platforms, the elevation of the bridge pier is measured using the second total station of one bridge pier and the first targets of two adjacent reference platforms. By setting up multiple reference platforms and multiple instrument platforms to perform measurements together, it is not necessary to set up a large number of underwater instrument platforms, which greatly reduces the number of underwater instrument platforms required. Furthermore, the reference platforms have a simple structure and are easy to build, shortening the construction period and reducing measurement costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a cross-sea combined distributed measurement system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the instrument platform provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the reference platform provided in an embodiment of the present invention; Figure 4 This is an overall logic block diagram of a cross-sea combined distributed measurement method provided in an embodiment of the present invention; Figure 5 This is a partial logic block diagram of a cross-sea combined distributed measurement method provided in an embodiment of the present invention; Figure label: 1. Instrument platform; 11. First total station; 12. Pipe pile assembly; 13. Workbench; 14. Support assembly; 15. Second target; 2. Base platform; 21. First beacon; 22. Base stake; 23. Cylinder; 3. Bridge pier; 31. Second total station. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a cross-sea combined distributed measurement system and method, which can solve the technical problems in the existing technology of using marine instrument platforms as benchmarks for settlement measurement, which requires a large number of marine instrument platforms to be deployed, resulting in long construction periods and high measurement costs.

[0020] Figure 1This invention provides a cross-sea combined distributed measurement system, comprising: multiple instrument platforms 1 and multiple reference platforms 2. The multiple instrument platforms 1 are spaced apart on one side of a bridge pier 3, and each instrument platform 1 is equipped with a first total station 11 on its top. The multiple reference platforms 2 are spaced apart between the instrument platforms 1 and the bridge pier 3, each reference platform 2 is equipped with a first target 21 on its top, and each bridge pier 3 is equipped with a second total station 31 on its top. The reference elevation of the reference platform 2 is measured using the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of one reference platform 2. Based on the reference elevations of the two reference platforms 2, the elevation of the bridge pier 3 is measured using the second total station 31 of one bridge pier 3 and the first targets 21 of two adjacent reference platforms 2.

[0021] This invention provides a cross-sea combined distributed measurement system, comprising multiple instrument platforms and multiple reference platforms. The instrument platforms are spaced apart on one side of a bridge pier, and each instrument platform is equipped with a first total station on its top. The reference platforms are spaced apart between the instrument platforms and the bridge piers, and each reference platform is equipped with a first target on its top. Each bridge pier is equipped with a second total station on its top. The reference elevation of a reference platform is measured using the first total stations of two adjacent instrument platforms and the first target of one reference platform. Based on the reference elevations of the two reference platforms, the elevation of the bridge pier is measured using the second total station of one bridge pier and the first targets of two adjacent reference platforms. By setting up multiple reference platforms and multiple instrument platforms to perform measurements together, it is not necessary to set up a large number of underwater instrument platforms, greatly reducing the number of underwater instrument platforms required. Furthermore, the reference platforms have a simple structure and are easy to build, shortening the construction period and reducing measurement costs.

[0022] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, each instrument platform 1 further includes: a pipe pile assembly 12, a worktable 13, and a support assembly 14. The pipe pile assembly 12 is disposed on the seabed, the worktable 13 is disposed on the pipe pile assembly 12, and the support assembly 14 is disposed vertically on the worktable 13. The support assembly 14 is used to fix the first total station 11. The pipe pile assembly 12 is formed by welding multiple vertical pipe piles, multiple inclined pipe piles, and support rods. The bottom ends of the multiple vertical pipe piles and inclined pipe piles are embedded in the deep seabed and connected by the support rods to form a whole. The worktable 13 is fixed on the pipe pile assembly 12 and forms an operating platform. The support assembly 14 is a centering pier, and a centering plate is installed on the top surface of the centering pier for fixing the first total station 11.

[0023] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, each instrument platform 1 further includes: a second target 15, which is disposed on the support component 14 and located above the first total station 11. The second target 15 is disposed vertically on the top of the support component 14, and a prism is provided at the center of both the second target 15 and the first target 21. The second target 15, the first target 21 and their central prism are all used to cooperate with the first total station 11 or the second total station 31 for measurement.

[0024] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 and Figure 3 As shown, each of the reference platforms 2 further includes: a reference pile 22 and a cylinder 23. The reference pile 22 is set vertically on the seabed, and the first beacon 21 is provided on the top of the reference pile 22. The cylinder 23 is fitted outside the reference pile 22, and the bottom end of the reference pile 22 is embedded in the deep layer of the seabed. The cylinder 23 is a tide-proof cylinder. The cylinder 23 is fitted outside the contact surface between the reference pile 22 and the sea surface and embedded in the shallow layer of the seabed to isolate the impact of the tide on the reference pile 22, prevent the reference pile 22 from shaking due to the influence of the tide, and enhance the stability of the reference pile 22.

[0025] This invention also provides a cross-ocean combined distributed measurement method, using the aforementioned cross-ocean combined distributed measurement system, see [link to relevant documentation]. Figure 4 As shown, it includes the following steps: Step S10: Use the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of the reference platform 2 to measure the reference elevation of the reference platform 2; Step S20: Based on the reference elevations of the two reference platforms 2, the elevation of the bridge pier 3 is measured using a second total station 31 of the bridge pier 3 and the first target 21 of the two adjacent reference platforms 2.

[0026] The cross-sea combined distributed measurement method of this invention uses a cross-sea combined distributed measurement system. This system includes multiple instrument platforms and multiple reference platforms. The instrument platforms are spaced apart on one side of a bridge pier. Each instrument platform has a first total station on its top. The reference platforms are spaced apart between the instrument platforms and the bridge piers. Each reference platform has a first target on its top. Each bridge pier has a second total station on its top. The reference elevation of a reference platform is measured using the first total stations of two adjacent instrument platforms and the first target of one reference platform. Based on the reference elevations of the two reference platforms, the elevation of the bridge pier is measured using the second total station of one bridge pier and the first targets of two adjacent reference platforms. By setting up multiple reference platforms and multiple instrument platforms to perform measurements together, there is no need to set up a large number of underwater instrument platforms, greatly reducing the number of underwater instrument platforms required. Furthermore, the reference platforms have a simple structure and are easy to build, shortening the construction period and reducing measurement costs.

[0027] As an optional implementation, in one embodiment of the invention, the reference elevation of the reference platform 2 is measured using a first total station 11 on two adjacent instrument platforms 1 and a first target 21 on a reference platform 2. See [link to relevant documentation]. Figure 5 As shown, it includes the following steps: Step S101: Obtain the known elevation of each instrument platform 1.

[0028] Step S102: Based on the known elevation of each instrument platform 1, the atmospheric refractive index is measured and calculated using the first total station 11 of two adjacent instrument platforms 1.

[0029] Specifically, the step of measuring and calculating the atmospheric refractive index using the first total station 11 of two adjacent instrument platforms 1 based on the known elevation of each instrument platform 1 includes: measuring the forward elevation difference, backward elevation difference, and real-time elevation difference between the two instrument platforms 1 using the first total station 11 of two adjacent instrument platforms 1 based on the known elevation of each instrument platform 1; calculating the control elevation of the two instrument platforms 1 based on the forward elevation difference and backward elevation difference between the two adjacent instrument platforms 1; and calculating the atmospheric refractive index based on the real-time elevation difference between the two adjacent instrument platforms 1, the control elevation of the two instrument platforms 1, and the differential trigonometric leveling.

[0030] Specifically, two adjacent instrument platforms 1 are designated as the first instrument platform 1 and the second instrument platform 1, respectively. Using the first total station 11 of the first instrument platform 1, the vertical angle from its position to the center of the second target 15 at the top of the second instrument platform 1, and the slope distance to the prism center of the second target 15 on the second instrument platform 1 are measured. Based on these measurements, the forward elevation difference between the first and second instrument platforms 1 is calculated. Similarly, using the first total station 11 of the second instrument platform 1, the vertical angle from its position to the center of the second target 15 at the top of the first instrument platform 1, and the slope distance to the prism center of the second target 15 on the first instrument platform 1 are measured. Based on these measurements, the reverse elevation difference between the second and first instrument platforms 1 is calculated. The first... The average of the forward elevation difference from the first instrument platform 1 to the second instrument platform 1 and the backward elevation difference from the second instrument platform 1 to the first instrument platform 1 is used to obtain the first control elevation of the two instrument platforms 1 based on the known elevation of each instrument platform 1 and the average of the forward and backward elevation differences. Then, the first total station 11 of the two instrument platforms 1 is raised and lowered, and the forward and backward elevation differences between the two instrument platforms 1 are repeatedly measured. The average of the forward and backward elevation differences between the two instrument platforms 1 is calculated again. Based on the known elevation of each instrument platform 1 and the average of the forward and backward elevation differences calculated twice, the second control elevation of the two instrument platforms 1 is obtained. The average of the first and second control elevations of the two instrument platforms 1 is taken as the control elevation of the two instrument platforms 1. The method for obtaining the control elevation of other instrument platforms 1 is the same as the above steps.

[0031] Since the forward and backward elevation differences between the two instrument platforms 1 include atmospheric refraction effects, the first control elevation of the two instrument platforms 1 can be obtained based on the known elevation of each instrument platform 1 and the average of the forward and backward elevation differences, or the second control elevation of the two instrument platforms 1 can be obtained based on the known elevation of each instrument platform 1 and the average of the forward and backward elevation differences calculated twice. The average of the forward and backward elevation differences can eliminate or reduce the atmospheric refraction effects in the forward and backward elevation differences between the two instrument platforms 1.

[0032] Furthermore, using the first total station 11 of the first instrument platform 1, the vertical angle from it to the center of the second target 15 at the top of the second instrument platform 1, and the slope distance from it to the prism center of the second target 15 of the second instrument platform 1, are measured. Similarly, using the first total station 11 of the second instrument platform 1, the vertical angle from it to the center of the second target 15 at the top of the first instrument platform 1, and the slope distance from it to the prism center of the second target 15 of the first instrument platform 1, are measured. Based on the two sets of vertical angles and slope distances between the two instrument platforms 1, and the known elevations of the two instrument platforms 1, the distance between adjacent instrument platforms 1 is calculated. The real-time elevation difference is obtained, and then the first atmospheric refractive index from the first total station 11 of the first instrument platform 1 to the center of the second target 15 at the top of the second instrument platform 1 and the second atmospheric refractive index from the first total station 11 of the second instrument platform 1 to the center of the second target 15 at the top of the first instrument platform 1 are calculated based on the real-time elevation difference between the two adjacent instrument platforms 1, the control elevation of the two instrument platforms 1, and the differential trigonometric elevation inversion. The average value of the first atmospheric refractive index and the second atmospheric refractive index is taken as the atmospheric refractive index between the two instrument platforms 1 and the observation reference platform 2 respectively.

[0033] Step S103, see Figure 5 As shown, the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of a reference platform 2 are used to measure the forward intersection elevation difference of the reference platform 2.

[0034] As an optional implementation, in one embodiment of the invention, measuring the forward intersection elevation difference of the reference platform 2 using the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of the reference platform 2 includes: measuring the vertical angle and slope distance from the two instrument platforms 1 to the reference platform 2 using the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of the reference platform 2; and calculating the forward intersection elevation difference of the reference platform 2 based on the vertical angle and slope distance from the two instrument platforms 1 to the reference platform 2.

[0035] Specifically, the first total station 11 of two adjacent instrument platforms 1 and the first target 21 of a reference platform 2 are used for coordinated measurement. That is, the first total station 11 of the first instrument platform 1 is used to measure the vertical angle from it to the first target 21 of the reference platform 2 and the slope distance from the prism center of the first target 21 of the reference platform 2. The first total station 11 of the second instrument platform 1 is used to measure the vertical angle from it to the first target 21 of the reference platform 2 and the slope distance from the prism center of the first target 21 of the reference platform 2. Based on the two sets of vertical angles and slope distances from the two instrument platforms 1 to the reference platform 2, the intersection height difference between the two instrument platforms 1 and the front of the reference platform 2 is calculated.

[0036] Step S104, see Figure 5As shown, the reference elevation of the reference platform 2 is obtained by correcting the forward intersection elevation difference of the reference platform 2 according to the atmospheric refraction coefficient. The corrected elevation difference is obtained by correcting the forward intersection elevation difference of the two instrument platforms 1 to the reference platform 2 according to the atmospheric refraction coefficient. Then, the first elevation value and the second elevation value of the reference platform 2 are calculated according to the control elevation of the two instrument platforms 1, the instrument height of the first total station 11 of the two instrument platforms 1, and the corrected elevation difference of the forward intersection elevation difference. The average value of the first elevation value and the second elevation value of the reference platform 2 is taken as the reference elevation of the reference platform 2.

[0037] Since the real-time elevation difference between the first total station 11 and the center of the second target 15 at the top of the second instrument platform 1, or between the first total station 11 of the second instrument platform 1 and the center of the second target 15 at the top of the first instrument platform 1, is affected by atmospheric refraction, the reference elevation of the reference platform 2 obtained by calculating the atmospheric refraction coefficient using the real-time elevation difference between the two adjacent instrument platforms 1 and the control elevation of the two instrument platforms 1, and then correcting the elevation difference at the intersection with atmospheric refraction, is more accurate.

[0038] As an optional implementation, in one embodiment of the invention, the step of measuring the elevation of the bridge pier 3 using a second total station 31 of the bridge pier 3 and a first target 21 of the two adjacent reference platforms 2 based on the reference elevations of the two reference platforms 2 includes: measuring the rear intersection elevation differences of the bridge pier 3 to the two reference platforms 2 respectively using a second total station 31 of the bridge pier 3 and a first target 21 of the two adjacent reference platforms 2 based on the reference elevations of the two reference platforms 2; and calculating the elevation of the bridge pier 3 based on the rear intersection elevation differences of the bridge pier 3 to the two reference platforms 2 respectively.

[0039] Specifically, based on the reference elevations of the two reference platforms 2, the vertical angle and slope distance from the bridge pier 3 to the two reference platforms 2 are measured using a second total station 31 on one bridge pier 3 and the first targets 21 on the two adjacent reference platforms 2. The rear intersection elevation difference between the bridge pier 3 and the two reference platforms 2 is calculated based on these vertical angles and slope distances. The measurement is performed using a second total station 31 on one bridge pier 3 and the first targets 21 on the two adjacent reference platforms 2, which are the first and second reference platforms 2, respectively. The reference platform 2 is determined by using a second total station 31 on a pier 3 to measure its vertical angle to the first target 21 of the first reference platform 2 and its slant distance to the prism center of the first target 21 of the first reference platform 2. Similarly, the reference platform 3 is determined by using a second total station 31 on a pier 3 to measure its vertical angle to the first target 21 of the second reference platform 2 and its slant distance to the prism center of the first target 21 of the second reference platform 2. Based on the two sets of vertical angles and slant distances from a pier 3 to the two adjacent reference platforms 2, the rear intersection height difference between the pier 3 and the two reference platforms 2 is calculated.

[0040] Since the observation distance between the two reference platforms 2 and the bridge pier 3 is relatively short, generally not exceeding 300 meters, the vertical angle and slant distance from the bridge pier 3 to the two reference platforms 2 are measured using the second total station 31 of one bridge pier 3 and the first target 21 of the two adjacent reference platforms 2, based on the reference elevation of the two reference platforms 2. The influence of atmospheric refraction during the measurement of the rear intersection height difference of the bridge pier 3 to the two reference platforms 2 can be ignored.

[0041] Furthermore, based on the height difference between the bridge pier 3 and the rear intersection of the two reference platforms 2, the first elevation value and the second elevation value of the bridge pier 3 are calculated respectively, and the average value of the first elevation value and the second elevation value of the bridge pier 3 is taken as the elevation of the bridge pier 3.

[0042] In addition, the settlement of a bridge pier 3 can be calculated by repeatedly measuring its elevation during the settlement observation period. For example, based on the reference elevations of two reference platforms 2, the elevation of the bridge pier 3 is measured using a second total station 31 of the bridge pier 3 and the first target 21 of the two adjacent reference platforms 2 as the initial elevation of the bridge pier 3. One month later, step S20 is repeated, and the elevation of the bridge pier 3 is measured again using a second total station 31 of the bridge pier 3 and the first target 21 of the two adjacent reference platforms 2 as the observed elevation of the bridge pier 3. The settlement of the bridge pier 3 is obtained by subtracting the initial elevation of the bridge pier 3 measured one month ago from the observed elevation of the bridge pier 3 measured one month later. Multiple measurements can be performed at different intervals during the settlement observation period to obtain the accurate settlement of a bridge pier 3.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0044] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A cross-sea combined distributed measurement system, characterized in that, include: Multiple instrument platforms (1) are spaced apart on one side of the bridge pier (3), and each instrument platform (1) is equipped with a first total station (11) on top. Multiple reference platforms (2) are spaced apart between the instrument platform (1) and the bridge pier (3), and each reference platform (2) is provided with a first target (21) on its top. Each of the bridge piers (3) is equipped with a second total station (31) at its top; The reference elevation of the reference platform (2) is measured using the first total station (11) of the two adjacent instrument platforms (1) and the first target (21) of the reference platform (2); The elevation of the pier (3) is measured using a second total station (31) of one of the piers (3) and a first target (21) of the two adjacent reference platforms (2) based on the reference elevation of the two reference platforms (2).

2. The cross-sea combined distributed measurement system according to claim 1, characterized in that, Each of the instrument platforms (1) also includes: Pipe pile assembly (12), the pipe pile assembly (12) is disposed on the seabed; A workbench (13) is provided on the pipe pile assembly (12); Support component (14) is provided vertically on the workbench (13) and is used to fix the first total station (11).

3. The cross-sea combined distributed measurement system according to claim 2, characterized in that, Each of the instrument platforms (1) also includes: The second target (15) is located on the support assembly (14) and above the first total station (11).

4. The cross-ocean combined distributed measurement system according to claim 1, characterized by, Each of the aforementioned benchmark platforms (2) also includes: A reference pile (22) is set vertically on the seabed, and the first beacon (21) is provided on the top of the reference pile (22). A cylindrical cylinder (23) is fitted around the outside of the reference pile (22).

5. A method of cross-ocean combined distributed measurement using the cross-ocean combined distributed measurement system according to claim 1, characterized by, include: The reference elevation of the reference platform (2) is measured using the first total station (11) of two adjacent instrument platforms (1) and the first target (21) of the reference platform (2); Based on the reference elevations of the two reference platforms (2), the elevation of the pier (3) is measured using a second total station (31) on one pier (3) and the first target (21) on the two adjacent reference platforms (2).

6. The cross-ocean combined distributed measurement method according to claim 5, characterized by, The measurement of the reference elevation of the reference platform (2) using a first total station (11) on two adjacent instrument platforms (1) and a first target (21) on a reference platform (2) includes: Obtain the known elevation of each instrument platform (1); Based on the known elevation of each instrument platform (1), the atmospheric refractive index is measured and calculated using the first total station (11) of two adjacent instrument platforms (1); The first total station (11) of two adjacent instrument platforms (1) and the first target (21) of a reference platform (2) are used to measure the forward intersection elevation difference of the reference platform (2); The reference elevation of the reference platform (2) is obtained by correcting the forward intersection elevation difference of the reference platform (2) based on the atmospheric refraction coefficient.

7. The cross-sea combined distributed measurement method according to claim 6, characterized in that, The atmospheric refractive index is measured and calculated using the first total station (11) of two adjacent instrument platforms (1) based on the known elevation of each instrument platform (1), including: Based on the known elevation of each instrument platform (1), the first total station (11) of two adjacent instrument platforms (1) is used to measure the forward elevation difference, backward elevation difference and real-time elevation difference between the two instrument platforms (1); The control elevations of the two instrument platforms (1) are calculated based on the forward and backward elevation differences between the two adjacent instrument platforms (1); The atmospheric refractive index is calculated based on the real-time elevation difference between two adjacent instrument platforms (1), the control elevation of the two instrument platforms (1), and the differential trigonometric elevation.

8. The cross-sea combined distributed measurement method according to claim 6, characterized in that, The method of measuring the forward intersection elevation difference of the reference platform (2) using a first total station (11) of two adjacent instrument platforms (1) and a first target (21) of a reference platform (2) includes: Using the first total station (11) of two adjacent instrument platforms (1) and the first target (21) of a reference platform (2), measure the vertical angle and slope distance from the two instrument platforms (1) to the reference platform (2), respectively; The forward intersection height difference of the reference platform (2) is calculated based on the vertical angle and slant distance from the two instrument platforms (1) to the reference platform (2).

9. The cross-sea combined distributed measurement method according to claim 5, characterized in that, The method of measuring the elevation of a bridge pier (3) using a second total station (31) on one pier (3) and a first target (21) on the two adjacent reference platforms (2) based on the reference elevation of the two reference platforms (2) includes: Based on the reference elevations of the two reference platforms (2), the second total station (31) of a pier (3) and the first target (21) of the two adjacent reference platforms (2) are used to measure the intersection elevation difference between the pier (3) and the rear of the two reference platforms (2); The elevation of the bridge pier (3) is calculated based on the height difference between the bridge pier (3) and the two reference platforms (2) at their rear intersections.

10. The cross-sea combined distributed measurement method according to claim 9, characterized in that, The method of measuring the rear intersection elevation difference of the bridge pier (3) to the two reference platforms (2) based on the reference elevation of the two reference platforms (2) using the second total station (31) of one bridge pier (3) and the first target (21) of the two adjacent reference platforms (2) includes: Based on the reference elevations of the two reference platforms (2), the vertical angle and slant distance of the pier (3) to the two reference platforms (2) are measured using the second total station (31) of one pier (3) and the first target (21) of the two adjacent reference platforms (2); The rear intersection height difference of the bridge pier (3) to the two reference platforms (2) is calculated based on the vertical angle and slant distance of the bridge pier (3) to the two reference platforms (2).

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