Pier column measuring system, measuring method and construction method

Abstract

The invention discloses a pier column measuring system and method and a construction method, and relates to the technical field of measuring instruments, and the system comprises a pier bottom support which is used for being arranged on a bearing platform at the bottom of a pier column; the measuring device is arranged on the pier bottom bracket; the pier top support is used for being arranged on the edge of the top of the pier column formwork, the pier top support is located over the pier bottom support, the measuring device measures the distance between the measuring device and the pier top support, and then the elevation of the pier column formwork is determined. By adopting the system and the method provided by the invention, not only can the construction cost and the site requirement be reduced, but also the measurement precision can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of measuring instruments, and in particular to a pier column measuring system, a measuring method and a construction method. Background Art

[0002] At present, with the rapid development of my country's transportation network, a large number of highway and railway bridges have crossed deep ditches, valleys and large rivers. Therefore, the height of bridge piers or towers (hereinafter referred to as piers) has generally increased. The height of piers often exceeds 100 meters, and even reaches more than 200 meters, which brings huge challenges to the construction of piers.

[0003] During the construction of piers, precise control of the position and shape of the piers has always been a difficult point. Moreover, the deformation of the piers during construction is relatively large. Under the influence of temperature and light changes, the deformation of the piers will be further increased. At present, the control of pier construction mainly uses a total station to measure the template, and then adjust the template and control the verticality according to the measurement results, such as CN113188529A.

[0004] However, there are many problems with the method of using a total station to measure height through trigonometric measurement: First, it is difficult to select the mirror point and the backsight point; since there is usually no large area of ​​flat ground in the construction area of ​​the pier, it is difficult to find suitable mirror points and backsight points. Second, when the pier is too high, the elevation angle of the total station is too large, and the measurement accuracy cannot meet the requirements, and the pier often has problems such as displacement or verticality exceeding the limit. Third, it consumes a lot of measuring instruments and personnel, and the cost is high; when using trigonometric measurement, at least three surveyors are required to operate at the same time, and multiple prisms and other instruments and equipment are also required, which takes up too much equipment and personnel. Summary of the invention

[0005] The embodiments of the present application provide a pier column measurement system, a measurement method and a construction method to solve the problems existing in trigonometric height measurement in the prior art.

[0006] On the one hand, an embodiment of the present application provides a pier column measurement system, including:

[0007] The pier bottom bracket is used to be arranged on the cap at the bottom of the pier column;

[0008] A measuring device is arranged on a support at the bottom of the pier;

[0009] The pier top bracket is used to be set at the top edge of the pier column formwork, and the pier top bracket is located directly above the pier bottom bracket. The measuring device measures the distance between the pier top bracket and the pier column formwork to determine the elevation.

[0010] On the other hand, the embodiment of the present application further provides a pier column measurement method, including:

[0011] A pier bottom support is arranged on the cap at the bottom of the pier column;

[0012] A pier top support is arranged on the top edge of the pier column formwork, and the pier top support is located directly above the pier bottom support;

[0013] The measuring device is arranged on the pier bottom support, and the distance between the measuring device and the pier top support is measured by the measuring device;

[0014] Determine the elevation of the pier formwork based on the distance.

[0015] On the other hand, the embodiment of the present application further provides a pier column construction method, comprising:

[0016] Build pier formwork;

[0017] Use the above method to determine the elevation of the pier column formwork;

[0018] Adjust the position of the pier formwork according to the elevation;

[0019] Pour concrete into the pier formwork.

[0020] A pier column measurement system, measurement method and construction method in this application have the following advantages:

[0021] 1. Low site requirements. It is only necessary to set up measuring devices on the pedestal at the bottom of the pier and on the template at the top of the pier, and there is no need to find special installation points for the devices. Therefore, the occupied site is very small and the site requirements are not high.

[0022] 2. High measurement accuracy. The total station and the prism located on the top of the pier column can be used together to accurately measure the elevation of the pier top, thereby providing accurate data support for the installation and adjustment of the template, which can effectively improve the accuracy of pier column construction.

[0023] 3. Low cost. The device has a simple structure and is easy to operate. It only requires one person to operate on the platform, and it takes up very little space for equipment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A side view of a pier column measurement system provided by an embodiment of the present application when in use;

[0026] Figure 2A partial front view of a pier column measurement system provided by an embodiment of the present application when in use;

[0027] Figure 3 A side view of a pier bottom support provided in an embodiment of the present application;

[0028] Figure 4 A top view of a pier bottom support provided in an embodiment of the present application;

[0029] Figure 5 A side view of a pier top support provided in an embodiment of the present application;

[0030] Figure 6 A bottom view of the pier top support provided in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 100 - pier bottom bracket, 110 - top plate, 120 - support column, 121 - connecting plate, 130 - mounting seat, 200 - pier top bracket, 210 - positioning plate, 220 - clamping plate, 230 - support rod, 240 - target plate, 300 - main template, 310 - edge template, 400 - measuring device, 410 - measuring light. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Figure 1-6 A schematic diagram of the structure of a pier column measurement system provided in an embodiment of the present application. The present application embodiment provides a pier column measurement system, including:

[0034] The pier bottom bracket 100 is used to be arranged on the cap at the bottom of the pier column;

[0035] The measuring device 400 is arranged on the pier bottom support 100;

[0036] The pier top support 200 is used to be set at the top edge of the pier column formwork, and the pier top support 200 is located directly above the pier bottom support 100. The measuring device 400 measures the distance between the pier top support 200 and further determines the elevation of the pier column formwork.

[0037] For example, during the pier construction process, the cap will be cast in the construction area first, and then the pier will be cast on the cap. Therefore, the cap already exists before the pier is cast, and the surface of the cap is relatively flat, which can ensure the installation accuracy of the pier bottom bracket 100.

[0038] In an embodiment of the present application, the pier bottom bracket 100 includes a top plate 110 and a support column 120. The support column 120 is arranged on the bottom surface of the top plate 110. A mounting seat 130 is arranged on the top surface of the top plate 110. The mounting seat 130 matches the mounting holes of the laser plumb line and the total station.

[0039] The support column 120 can be made of the same material as the top plate 110, and can be evenly arranged at multiple positions at the bottom of the top plate 110 to provide support for the top plate 110 and provide a good installation environment for the measuring device 400. The mounting seat 130 can be a stud, and the outer surface thereof has a mounting hole that matches the bottom of the laser plumb line and the total station, and the mounting hole also has a thread, so that the measuring device 400 can be installed on the mounting seat 130 in a screw connection. Specifically, in this application, only one mounting seat 130 is set on the top plate 110, so it is necessary to first install the laser plumb line, and then remove the laser plumb line from the mounting seat 130 after adjusting the position of the pier top bracket 200 to the right position by the laser plumb line, and replace it with the total station, and the total station performs distance measurement.

[0040] Furthermore, a connecting plate 121 is provided at the bottom end of the supporting column 120, and the connecting plate 121 is used to be connected to the base.

[0041] The connecting plate 121 is a thin plate parallel to the top plate 110. It can also be made of the same material as the support column 120, and connecting holes can be set on the connecting plate 121. After the installation position is determined, the connecting plate 121 can be fixed to the base through expansion bolts to keep the position of the pier bottom bracket 100 fixed and improve the accuracy of elevation measurement.

[0042] Furthermore, a leveling component is provided on the support column 120. Although the flatness of the base is relatively high, it still cannot meet the accuracy requirements of the elevation measurement. Therefore, a leveling component can be provided on the support column 120. The leveling component can use a screw. By rotating the screw, the horizontality of the support column 120 can be adjusted. When the horizontality meets the requirements, the connecting plate 121 is fixed on the base. Moreover, a level detection unit can be provided on the top plate 110. The level detection unit can use a bubble meter. By observing the level detection unit, the horizontality of the top plate 110 can be understood, thereby guiding the adjustment of the leveling component.

[0043] In a possible embodiment, the measuring device 400 includes a laser plumb line and a total station. A target plate 240 is also provided on the pier top bracket 200. The centering light emitted by the laser plumb line is irradiated on the target plate 240. When the template for installing the pier top bracket 200 is adjusted so that the center of the target plate 240 coincides with the centering light, the total station is installed on the pier bottom bracket 100 to measure the distance.

[0044] Exemplarily, a target ring and a bull's eye can be set on the target plate 240, and the bull's eye is located at the center of the entire target plate and all target rings. When the laser plumb line is working, it will emit a centering light, which is visible light, which propagates vertically upward and irradiates the target plate 240. After the surveyor observes the light spot of the centering light on the target plate 240, the position of the template for installing the pier top bracket 200 can be adjusted until the light spot and the bull's eye coincide. At this time, it indicates that the pier top bracket 200 is in a position completely corresponding to the pier bottom bracket 100. The laser plumb line can be removed from the pier bottom bracket 100 and the total station can be installed on the pier bottom bracket 100 to perform distance measurement. Since the present application successively installs the laser plumb line and the total station on the same mounting seat 130, the accuracy of the total station measurement can be ensured, and the measurement data will not be deviated due to position differences.

[0045] In addition, a prism rod and an elevation rod may be installed on the top plate 110. Through the cooperation of the total station, the prism rod and the elevation rod, the elevation of the pier formwork and the plane coordinates of the total station's position may be accurately measured.

[0046] In the embodiment of the present application, the vertical measurement standard deviation of the laser plumb line is ≤1 / 45000, the angle value of the long level is 20" / 20m, the effective range of the laser is ≥200m during the day and ≥300m at night, and the laser spot is ≤3mm / 50m. After adjusting the position of the pier column template so that the light spot of the centering light coincides with the center of the target plate 240, the angles of the laser plumb line in four directions can also be adjusted to verify the accuracy of the centering light. At the same time, when the total station measures the elevation, the handle needs to be removed, and the air pressure and temperature at the bottom and top of the pier need to be measured, and the average values ​​are taken and input into the total station so that the total station can successfully complete the elevation measurement.

[0047] In a possible embodiment, a reflective unit is disposed on the pier top support 200 , and the reflective unit is used to reflect the measuring light 410 emitted by the measuring device 400 .

[0048] Exemplarily, the reflective unit can be a prism, which can be set directly below the center of the target plate 240. When the total station is installed on the pier bottom bracket 100, the reflective unit can also be installed on the pier top bracket 200, so that the measuring light 410 emitted by the total station during measurement is reflected by the reflective unit, ensuring that the total station can measure the distance normally.

[0049] In a possible embodiment, the pier top support 200 includes a positioning plate 210 and a clamping plate 220 . The clamping plate 220 is disposed on the bottom surface of the positioning plate 210 , and the clamping plate 220 is used to clamp the pier column formwork.

[0050] Exemplarily, the positioning plate 210 is a flat plate, and there are two clamps 220. The two clamps 220 are parallel to each other and vertically connected to the bottom surface of the positioning plate 210. The two clamps 220 are located on one side of the bottom surface of the positioning plate 210. After the clamps 220 are clamped on the top edge of the pier column formwork, a section of the positioning plate 210 away from the clamps 220 protrudes from the pier column formwork, and the target plate 240 and the reflective unit are both located at the protruding end of the positioning plate 210, so the target plate 240 and the reflective unit will be directly above the pier bottom bracket 100.

[0051] Furthermore, a clamping assembly is provided on the clamping plate 220, and the clamping assembly is used to clamp the pier column template. The clamping assembly can be a bolt, and a screw hole matching the bolt can be provided on the clamping plate 220. When the bolt is screwed into the screw hole, the position between the bolt and the clamping plate 220 can be adjusted by rotating the bolt, so that the bolt is tightly held on the pier column template, thereby improving the installation stability of the pier top bracket 200 on the pier column template.

[0052] It should be understood that clamping assemblies can be provided on both clamp plates 220 , and while achieving a stable connection with the pier column formwork, the relative position between the pier top support 200 and the pier column formwork can be adjusted, thereby fine-tuning the pier top support 200 .

[0053] The present application also provides a pier column measurement method, which includes the following steps:

[0054] A pier bottom support 100 is provided on the cap at the bottom of the pier column;

[0055] A pier top bracket 200 is arranged at the top edge of the pier column formwork, and the pier top bracket 200 is located directly above the pier bottom bracket 100;

[0056] The measuring device 400 is arranged on the pier bottom support 100, and the distance between the pier bottom support 100 and the pier top support 200 is measured by the measuring device 400;

[0057] Determine the elevation of the pier formwork based on the distance.

[0058] Exemplarily, the pier column formwork has two opposite curved sides and two opposite straight sides. Two pier bottom supports 100 can be set on one side of the same straight side. At the same time, two pier top supports 200 can be set on the top of the pier column formwork. There is a pier top support 200 directly above each pier bottom support 100. A pier bottom support 100 and a corresponding pier top support 200 form a group. Two groups of measuring components respectively measure the elevations of the two ends of the top of the pier column formwork, and mathematical operations are performed on the two elevations. For example, the final elevation of the pier column formwork can be obtained by taking the average value.

[0059] In the embodiment of the present application, the pier column formwork includes a main formwork 300 and an edge formwork 310, the edge formwork 310 is located at the top edge of the main formwork 300, and the pier top bracket 200 is arranged on the side of the top of the edge formwork 310 away from the main formwork 300. At the same time, in order to ensure the stability of the pier top bracket 200, an inclined support rod 230 can be arranged on the bottom surface of the positioning plate 210. When the positioning plate 210 is installed on the edge formwork 310 through the clamping plate 220, the bottom end of the support rod 230 just contacts the outer surface of the edge formwork 310, thereby providing support to the positioning plate 210.

[0060] The present application also provides a pier column construction method, which includes the following steps:

[0061] Build pier formwork;

[0062] Use the above method to determine the elevation of the pier column formwork;

[0063] Adjust the position of the pier formwork according to the elevation;

[0064] Pour concrete into the pier formwork.

[0065] For example, after the elevation is measured by the total station, the target position of the slope-changing template in the pier template can be calculated, and the actual position of the slope-changing template can be adjusted according to the positioning wire on the template so that the actual position reaches the target position. At this time, the accurate construction of the pier template is completed, and the construction of the pier can be completed by pouring concrete into the pier template.

[0066] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A pier column measurement system, characterized in that: include: A pier bottom bracket (100) is used to be arranged on a cap at the bottom of the pier column; A measuring device (400) is arranged on the pier bottom support (100); The pier top support (200) is used to be arranged at the top edge of the pier column formwork, and the pier top support (200) is located directly above the pier bottom support (100). The measuring device (400) measures the distance between the pier top support (200) and the pier column formwork, thereby determining the elevation of the pier column formwork.

2. A pier column measurement system according to claim 1, characterized in that: The pier top support (200) is provided with a reflective unit, and the reflective unit is used to reflect the measuring light (410) emitted by the measuring device (400).

3. A pier column measurement system according to claim 1, characterized in that: The measuring device (400) comprises a laser plumb line and a total station. A target plate (240) is also provided on the pier top bracket (200). The centering light emitted by the laser plumb line is irradiated on the target plate (240). When the template on which the pier top bracket (200) is mounted is adjusted so that the center of the target plate (240) coincides with the centering light, the total station is mounted on the pier bottom bracket (100) to measure the distance.

4. A pier column measurement system according to claim 3, characterized in that: The pier bottom support (100) comprises a top plate (110) and a support column (120), wherein the support column (120) is arranged on the bottom surface of the top plate (110), and a mounting seat (130) is arranged on the top surface of the top plate (110), wherein the mounting seat (130) matches the mounting holes of the laser plummet and the total station.

5. A pier column measurement system according to claim 4, characterized in that: A connecting plate (121) is provided at the bottom end of the supporting column (120), and the connecting plate (121) is used to be connected to the support platform.

6. A pier column measurement system according to claim 4, characterized in that: A leveling component is provided on the support column (120).

7. A pier column measurement system according to claim 1, characterized in that: The pier top support (200) comprises a positioning plate (210) and a clamping plate (220), wherein the clamping plate (220) is arranged on the bottom surface of the positioning plate (210), and the clamping plate (220) is used for clamping a pier column formwork.

8. A pier column measurement system according to claim 7, characterized in that: The clamping plate (220) is provided with a clamping assembly, and the clamping assembly is used to clamp the pier column formwork.

9. A pier column measurement method, characterized in that: include: A pier bottom support (100) is arranged on the cap at the bottom of the pier column; A pier top support (200) is arranged on the top edge of the pier column formwork, wherein the pier top support (200) is located directly above the pier bottom support (100); A measuring device (400) is arranged on the pier bottom support (100), and the measuring device (400) measures the distance between the pier bottom support (100) and the pier top support (200); The elevation of the pier column formwork is determined based on the distance.

10. A pier column construction method, characterized in that: include: Build pier formwork; Determine the elevation of the pier formwork using the method of claim 9; Adjust the position of the pier column template according to the elevation; Concrete is poured into the pier column formwork.

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