Method for rapid positioning of suspension bridge gravity anchor pipe group

Abstract

The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge gravity anchor pipe group, and relates to the technical field of bridge construction measurement. The application discloses a rapid positioning method for a suspension bridge

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction measurement, and in particular to a method for quickly positioning a gravity anchor pipe group of a suspension bridge. Background Art

[0002] Currently, gravity anchor pipes are the primary anchoring method for the main cables of suspension bridges and are also the key load-bearing structure of suspension bridges. The main cables are separated into several steel strands at each end, each strand being fixed to a corresponding anchor pipe. This disperses the main cable's force across the massive gravity anchors, ensuring stable load-bearing.

[0003] The spatial relationship of the gravity anchor pipe group is complex, and the number of anchor pipes is large. They need to be installed and positioned in multiple zones. The measurement process is complicated and the measurement accuracy is high. The deviation is only allowed to be within 5 mm. The spatial geometric relationship between multiple anchor pipes must be precise. The construction space is narrow, the measurement environment is harsh, and the measurement control is difficult.

[0004] In related technologies, the positioning measurement of gravity anchor pipe groups generally adopts the total station coordinate method. The total station is placed on the bridge control network point with known coordinates. According to the absolute theoretical coordinates of each anchor pipe, each anchor pipe is individually and absolutely positioned. The positioning workload is large, many measurement personnel are involved, and the measurement and installation efficiency is low. It is especially not suitable for large-scale anchor pipe groups. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of this application is to provide a method for quickly positioning the anchor pipe group of a suspension bridge gravity anchor, which adopts absolute positioning and relative positioning methods to greatly improve the installation, positioning and measurement efficiency of the anchor pipe group.

[0006] To achieve the above objectives, the technical solution adopted is: a method for quickly positioning a group of gravity anchor pipes for a suspension bridge, comprising the following steps:

[0007] S1: The anchor surface is the XY plane, and an XYZ coordinate system is established. The three-dimensional coordinates of the centers of the heads of at least three anchor pipes are determined using a total station.

[0008] S2: Fix the tube head prism on the tube head of the anchor pipe to be positioned; fix the universal distance meter on the tube head of the positioned anchor pipe, and use the universal distance meter and the tube head prism to measure the slant distance between the center of the tube head of each positioned anchor pipe and the center of the tube head of the anchor pipe to be positioned;

[0009] S3: Calculate the horizontal distances between the centers of the heads of the anchor pipes already positioned and the center of the head of the anchor pipe to be positioned based on the relative differences between the vertical distances from the centers of the heads of the anchor pipes already positioned to the rear anchor surface and the vertical distances from the centers of the heads of the anchor pipes to be positioned to the rear anchor surface, combined with the corresponding slant distances;

[0010] S4: determining the three-dimensional coordinates of the center of the anchor pipe head to be positioned based on the horizontal distances between the centers of the anchor pipe heads that have been positioned and the center of the anchor pipe head to be positioned;

[0011] S5: Compare the deviation between the three-dimensional coordinates of the center of the anchor pipe head to be positioned and its design coordinates, adjust the anchor pipe to be positioned and eliminate the deviation.

[0012] On the basis of the above technical solution, before step S2, it further includes preparing a universal rangefinder, wherein the universal rangefinder includes a tube head instrument frame and a rangefinder body;

[0013] The bottom end of the pipe head instrument frame is provided with a first circular plug tube for coaxially inserting the positioned anchor pipe head. The rangefinder body is arranged at the top end of the pipe head instrument frame, and a universal hinge is arranged in the middle position of the pipe head instrument frame.

[0014] On the basis of the above technical solution, the universal joint includes a universal ball head and a spherical base, and the tube head instrument rack further includes an L-shaped rod and a base rod;

[0015] The rangefinder body is installed at the end of the horizontal side of the L-shaped rod, and the universal ball head is set at the end of the vertical side of the L-shaped rod; the spherical base is set at the top of the vertical base rod, and the first circular plug tube is set at the bottom end of the base rod.

[0016] On the basis of the above technical solution, before step S2, it also includes preparing a tube head prism, which includes a prism rod and a prism body. The bottom end of the prism rod has a second circular plug tube coaxially inserted into the anchor tube head to be positioned, and the prism body is arranged at the top of the prism rod.

[0017] Based on the above technical solution, all anchor pipes in the gravity anchor pipe group have the same inner and outer diameters, and the outer diameters of the first circular plug pipe and the second circular plug pipe are equal to the inner diameter of the anchor pipe.

[0018] Based on the above technical solution, the slant distance in step S2 includes:

[0019] The slant distance from the center of each positioned anchor pipe head to the center of the anchor pipe head to be positioned is expressed as S ij ; Among them, i is the pipe number of the anchor pipe that has been positioned, and j is the pipe number of the anchor pipe to be positioned.

[0020] Based on the above technical solution, step S3 includes:

[0021] S30: Calculate the vertical distance H from the center of the anchor pipe head to the rear anchor surface i :

[0022]

[0023] Among them, i is the pipe number of the anchor pipe that has been positioned, Li L is the height from the center of the universal distance meter to the end face of the anchor pipe. i The actual length of the positioned anchor pipe, α i β is the inclination angle of the center line of the positioned anchor pipe (11) projected onto the XZ plane and relative to the Z axis; i The center line of the positioned anchor pipe (11) is projected onto the YZ plane and its inclination angle to the Z axis;

[0024] S31: Calculate the vertical distance H from the pipe head to the rear anchor surface to be positioned j ;

[0025]

[0026] Among them, j is the pipe number of the anchor pipe to be positioned, V j L is the height from the center of the tube head prism 2 to the tube head end face of the anchor tube 12 to be positioned, j is the actual length of the anchor pipe to be positioned, α j β is the inclination angle of the center line of the anchor pipe (12) to be positioned projected onto the XZ plane and relative to the Z axis; j The center line of the anchor pipe (12) to be positioned is projected onto the YZ plane and its inclination angle with the Z axis;

[0027] S32: Calculate the horizontal distance D from the center of the anchor pipe head to the center of the anchor pipe head to be positioned ij :

[0028]

[0029] Based on the above technical solution, step S4 includes:

[0030] If only the horizontal distance from the center of the three positioned anchor pipe heads to the center of the anchor pipe head to be positioned is measured, and the centers of the three positioned anchor pipe heads and the center of the anchor pipe head to be positioned meet the graphic conditions of three-side intersection; the coordinates of the center of the anchor pipe head to be positioned are calculated according to the three-side intersection coordinate formula.

[0031] Based on the above technical solution, step S4 includes:

[0032] If the horizontal distance from the center of four or more positioned anchor pipe heads to the center of the anchor pipe head to be positioned is measured, the coordinates of the center of the anchor pipe head to be positioned are calculated according to the principle of line measurement and intersection adjustment.

[0033] Based on the above technical solution, step S5 includes:

[0034] S51: Calculate the deviation between the coordinates of the center of the anchor pipe head to be positioned and the design coordinates;

[0035] S52: Adjust the anchor pipe to be positioned to move toward the design coordinates;

[0036] S53: Repeat the calculation and adjustment process until the center coordinates of the pipe head of the anchor pipe to be positioned are adjusted to the design coordinates;

[0037] S54: The anchor pipe to be positioned is changed to the positioned anchor pipe, and positioning of the next anchor pipe to be positioned is continued.

[0038] The beneficial effects of the technical solution provided by this application include:

[0039] The rapid positioning method of the anchor pipe group of the gravity anchor of the suspension bridge of the present application provides auxiliary devices including a universal rangefinder and a tube head prism. The rear anchor surface is taken as the XY plane, and an XYZ coordinate system is established. First, three or more reference points (the three-dimensional coordinates of the center of the tube head of the positioned anchor pipe) are found; then, the universal rangefinder and the tube head prism are used to measure and calculate the oblique distance between the tube head center of each positioned anchor pipe and the tube head center of the anchor pipe to be positioned, and the corresponding horizontal distance is obtained by combining the relative difference of the vertical distance, and then the three-dimensional coordinates of the tube head center of the anchor pipe to be positioned are determined; the deviation between the three-dimensional coordinates of the tube head center of the anchor pipe to be positioned and its own design coordinates is compared, and the anchor pipe to be positioned is adjusted in place to eliminate the deviation. The rapid positioning method of the anchor pipe group of the gravity anchor of the suspension bridge of the present application uses the positioned anchor pipe as a reference to relatively position the anchor pipe to be positioned, instead of absolutely positioning all anchor pipes in the existing technology. The measurement process is simpler and the relative relationship between the anchor pipes is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

[0041] Figure 1 A flow chart of a method for rapidly positioning a gravity anchor pipe group for a suspension bridge provided in an embodiment of the present application;

[0042] Figure 2 A side view of a gravity anchor pipe group provided in an embodiment of the present application;

[0043] Figure 3 Schematic diagram of the angle of any anchor pipe projected onto the XZ and YZ planes relative to the Z axis provided in the embodiments of the present application;

[0044] Figure 4 A front view of a gravity anchor pipe group provided in an embodiment of the present application;

[0045] Figure 5 A schematic structural diagram of a universal rangefinder and its bracket provided in an embodiment of the present application;

[0046] Figure 6A schematic diagram of the structure of the tube head prism provided in an embodiment of the present application;

[0047] Figure numerals: 1. Universal rangefinder; 2. Tube head prism; 3. Tube head instrument frame; 4. Rangefinder body; 5. Universal hinge; 6. First circular plug tube; 7. Universal ball head; 8. Spherical base; 9. L-shaped rod; 10. Base rod; 11. Positioned anchor tube; 12. Anchor tube to be positioned; 13. Prism rod; 14. Prism body; 15. Second circular plug tube; 16. Rear anchor surface. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0049] like Figures 1 to 6 As shown, the present application discloses an embodiment of a method for quickly positioning a gravity anchor pipe group of a suspension bridge. It mainly addresses the defects of the gravity anchor pipe group positioning method in the prior art. The purpose of the present invention is to provide a method for quickly positioning a gravity anchor pipe group of a suspension bridge. It adopts a method that combines absolute positioning and relative positioning, takes a small number of absolutely positioned anchor pipes as a reference, and uses simple relative positioning to position a large number of anchor pipes, thereby greatly improving the installation, positioning and measurement efficiency of the anchor pipe group.

[0050] A method for quickly locating a gravity anchor pipe group of a suspension bridge comprises the following steps:

[0051] S1: Using anchor surface 16 as the XY plane, establish an XYZ coordinate system, with the Z coordinate perpendicular to the XY plane and oriented toward the gravity anchor pipe group. Use a total station to determine the three-dimensional coordinates of the heads of at least three anchor pipes. This means the three-dimensional coordinates of the heads of the located anchor pipes 11 are known and serve as a reference for subsequent measurements.

[0052] S2: Secure the tube head prism 2 to the tube head of the anchor pipe 12 to be positioned; secure the universal distance meter 1 to the tube head of the already positioned anchor pipe 11. Use the universal distance meter 1 and tube head prism 2 to measure the slant distance between the center of the tube head of each positioned anchor pipe 11 and the center of the tube head of the anchor pipe 12 to be positioned. The dimensions of the universal distance meter 1 and tube head prism 2 are taken into account during the measurement process. The final result is the slant distance between the center of the tube head of the positioned anchor pipe 11 and the center of the tube head of the anchor pipe 12 to be positioned.

[0053] S3: Based on the relative differences between the perpendicular distances from the center of the head of each positioned anchor pipe 11 to the rear anchor surface 16 and the perpendicular distances from the center of the head of the anchor pipe 12 to be positioned to the rear anchor surface 16, combined with the corresponding slant distances, using the Pythagorean theorem, calculate the horizontal distances between the center of the head of each positioned anchor pipe 11 and the center of the head of the anchor pipe 12 to be positioned.

[0054] S4: determining the three-dimensional coordinates of the center of the head of the anchor pipe 12 to be positioned according to the horizontal distances between the centers of the heads of the positioned anchor pipes 11 and the centers of the heads of the anchor pipes 12 to be positioned.

[0055] S5: Compare the deviations between the three-dimensional coordinates of the center of the head of the anchor pipe 12 to be positioned and the design coordinates. Adjust the position of the anchor pipe 12 to align the head center with the design coordinates. After all anchor pipe heads are aligned with the design coordinates, concrete is poured to secure them. Specifically, all anchor pipes are secured to a giant support, which is also finally cast into concrete.

[0056] The present invention provides a method for quickly locating a group of gravity anchor pipes for a suspension bridge. The method provides auxiliary devices including a universal rangefinder 1 and a head prism 2. The anchor surface 16 is used as the XY plane to establish an XYZ coordinate system. First, three or more reference points (the three-dimensional coordinates of the head center of the already located anchor pipe 11) are found. Then, the universal rangefinder 1 and the head prism 2 are used to measure and calculate the oblique distances between the head centers of the already located anchor pipes 11 and the head centers of the anchor pipes to be located 12. Combined with the relative differences in the vertical distances, the corresponding horizontal distances are obtained, and the three-dimensional coordinates of the head centers of the anchor pipes to be located 12 are determined. The deviation between the three-dimensional coordinates of the head centers of the anchor pipes to be located 12 and their own design coordinates is compared, and the anchor pipes to be located 12 are adjusted into position to eliminate the deviation. The present invention provides a method for quickly locating a group of gravity anchor pipes for a suspension bridge. The method uses the already located anchor pipe 11 as a reference to relatively locate the anchor pipes to be located 12, replacing the absolute positioning of all anchor pipes in the prior art. This simplifies the measurement process and makes the relative relationship between the anchor pipes more accurate.

[0057] like Figure 5 As shown, further, before step S2 , it also includes preparing a universal rangefinder 1 , which specifically includes a tube head instrument frame 3 and a rangefinder body 4 .

[0058] The bottom end of the pipe head instrument rack 3 has a first circular plug tube 6 for coaxially inserting the positioned anchor pipe 11 pipe head. The rangefinder body 4 is arranged at the top end of the pipe head instrument rack 3, and a universal hinge 5 is provided in the middle position of the pipe head instrument rack 3 to facilitate turning in all directions.

[0059] Specifically, the dimensions of each part of the gimbal rangefinder 1 are known (C in the figure i and l i The above dimensions have been taken into account in the process of measuring the relative difference of slope distance, vertical distance and horizontal distance.

[0060] Furthermore, the universal joint 5 includes a universal ball joint 7 and a spherical base 8. The tube head instrument mount 3 also includes an L-shaped rod 9 and a base rod 10. The L-shaped rod 9 has a horizontal side and a vertical side. The rangefinder body 4 is mounted on the end of the horizontal side of the L-shaped rod 9, and the universal ball joint 7 is located at the end of the vertical side of the L-shaped rod 9. The spherical base 8 is located at the top of the vertical base rod 10, and the first circular plug tube 6 is located at the bottom of the base rod 10. The universal ball joint 7 and the spherical base 8 are mutually compatible and can rotate in all directions.

[0061] like Figure 6 As shown, before step S2, the process also includes preparing the tube head prism 2, which includes a prism rod 13 and a prism body 14. The bottom end of the prism rod 13 has a second circular plug tube 15 coaxially inserted with the tube head of the anchor tube 12 to be positioned, and the prism body 14 is set at the top of the prism rod 13. Specifically, the dimensions of each part of the tube head prism 2 are known (V in the figure). j , and the size from the mirror surface of the prism body 14 to the center line), the above dimensions have been taken into consideration in the process of measuring the relative difference in slant distance, vertical distance and horizontal distance.

[0062] The rapid positioning method of the anchor pipe group of the suspension bridge gravity anchor of the present application prepares in advance a pipe head prism 2 and a universal rangefinder 1 that can be flexibly coaxially inserted into the anchor pipe. Compared with the method of using a total station for absolute positioning, the relative positions of the pipe head centers of the two anchor pipes are clearer in this measurement method.

[0063] Furthermore, all anchor pipes of the gravity anchor pipe group have the same inner and outer diameters, and the outer diameters of the first circular plug pipe 6 and the second circular plug pipe 15 are equal to the inner diameter of the anchor pipe.

[0064] Furthermore, the slant distance in step S2 includes:

[0065] The slant distance from the center of each positioned anchor pipe 11 to the center of the anchor pipe 12 to be positioned is expressed as S ij Wherein, i is the pipe number of the anchor pipe 11 that has been positioned, and j is the pipe number of the anchor pipe 12 to be positioned. Specifically, S ij The actual measured distance (the distance from the emitting end face of the rangefinder body 4 of the universal rangefinder 1 to the mirror surface of the prism body 14 of the tube head prism 2), the known distance from the mirror surface of the prism body 14 to its own center line, and C i sum.

[0066] like Figure 2 and Figure 3 As shown, further, step S3 calculates the horizontal distance between the center of the pipe head of a positioned anchor pipe 11 and the center of the pipe head of the anchor pipe to be positioned 12, including:

[0067] S30: Based on the known actual pipe length L of the positioned anchor pipe 11 with pipe number i iCalculate the vertical distance H from the center of the anchor pipe 11 to the rear anchor surface 16 i :

[0068]

[0069] Among them, l i The distance between the center of the universal distance meter 1 and the end face of the anchor pipe 11 is the height (see Figure 5 ), α i β is the inclination angle between the center line of the positioned anchor pipe 1) projected onto the XZ plane and the Z axis; i It is the inclination angle between the center line of the positioned anchor pipe 11 and the Z axis when projected onto the YZ plane.

[0070] S31: According to the actual length L of the anchor pipe 12 to be positioned with pipe number j j Calculate the vertical distance H from the head of the anchor pipe 12 to the rear anchor surface 16 j ;

[0071]

[0072] Among them, V j V is the height from the center of the tube head prism 2 to the tube head end face of the anchor tube 12 to be positioned. j α is the distance from the center of the prism body 14 to the end face of the tube head of the anchor tube 12 to be positioned; j β is the inclination angle of the center line of the anchor pipe (12) to be positioned projected onto the XZ plane and relative to the Z axis; j It is the inclination angle between the center line of the anchor pipe (12) to be positioned and the Z axis and projected onto the YZ plane.

[0073] S32: Calculate the horizontal distance D from the center of the pipe head of the positioned anchor pipe 11 to the center of the pipe head of the anchor pipe 12 to be positioned ij :

[0074]

[0075] Specifically, the horizontal distance can determine the X and Y coordinates, while the Z coordinate is directly determined by the relative difference in vertical distances.

[0076] In one embodiment, step S4 comprises:

[0077] If only the horizontal distances from the centers of the three already located anchor pipes 11 to the center of the anchor pipe 12 to be located are measured, and the centers of the three already located anchor pipes 11 and the center of the anchor pipe 12 to be located meet the three-sided intersection graphical condition, that is, they are no longer straight lines, it is sufficient. Preferably, a line connecting the three known points surrounds the point to be measured. Calculate the coordinates of the center of the anchor pipe 12 to be located using the three-sided intersection coordinate formula.

[0078] In another embodiment, step S4 comprises:

[0079] If the horizontal distance from the center of the head of four or more positioned anchor pipes 11 to the center of the head of the anchor pipe 12 to be positioned is measured, the coordinates of the center of the head of the anchor pipe 12 to be positioned are calculated according to the principle of line measurement and intersection adjustment.

[0080] Furthermore, step S5 includes:

[0081] S51: Calculate the deviation between the coordinates of the center of the anchor pipe 12 to be positioned and its own design coordinates, including the deviations in the X, Y and Z directions;

[0082] S52: Adjust the anchor pipe 12 to be positioned and move it toward the designed coordinates;

[0083] S53: Repeat the calculation and adjustment process until the center coordinates of the pipe head of the anchor pipe 12 to be positioned are adjusted to the design coordinates;

[0084] S54: the anchor pipe 12 to be positioned is changed to the positioned anchor pipe 11, and the positioning of the next anchor pipe 12 to be positioned is continued. When positioning the next anchor pipe 12 to be positioned, there are more positioning references.

[0085] Compared with the prior art, the rapid positioning method of the gravity anchor pipe group of the suspension bridge of the present application has the following advantages:

[0086] ① The method of combining absolute positioning with relative positioning is adopted. A small number of absolutely positioned anchor pipes are used as a benchmark, and a large number of anchor pipes are positioned using simple relative positioning. The process is simple and convenient, which greatly speeds up the installation, positioning and measurement speed of the anchor pipe group.

[0087] ② Using specific auxiliary devices (tube head prism and universal rangefinder), a large number of anchor pipes to be positioned are located using the principle of side measurement intersection adjustment or the three-sided intersection coordinate formula. The distance measurement accuracy is high and the positioning method is direct, which is conducive to ensuring the relative geometric relationship between the anchor pipes and has high measurement accuracy and reliability.

[0088] ③ Taking at least three absolutely positioned anchor pipes as positioning reference pipes, the principle of line measurement intersection adjustment or the three-side intersection coordinate formula is adopted to relatively position a large number of anchor pipes to be positioned. In the positioning process, the anchor pipes to be positioned are continuously changed to the positioned anchor pipes, and the positioning reference is continuously increased, which further improves the measurement convenience, helps to improve the positioning efficiency, and ensures the positioning accuracy.

[0089] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0090] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0091] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand and implement the present application. 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 present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A method for quickly positioning a gravity anchor pipe group of a suspension bridge, characterized in that: Including steps: S1: Taking the anchor surface (16) as the XY plane, establish an XYZ coordinate system and determine the three-dimensional coordinates of the centers of the pipe heads of at least three positioned anchor pipes; S2: Fix the tube head prism (2) on the tube head of the anchor pipe (12) to be positioned; fix the universal distance meter (1) on the tube head of the positioned anchor pipe (11), and use the universal distance meter (1) and the tube head prism (2) to measure the slant distance between the tube head center of each positioned anchor pipe (11) and the tube head center of the anchor pipe (12) to be positioned; S3: Based on the relative differences between the vertical distances from the center of the pipe head of each positioned anchor pipe (11) to the rear anchor surface (16) and the vertical distances from the center of the pipe head of the anchor pipe to be positioned (12) to the rear anchor surface (16), and in combination with the corresponding slant distances, the horizontal distances between the center of the pipe head of each positioned anchor pipe (11) and the center of the pipe head of the anchor pipe to be positioned (12) are calculated; S4: determining the three-dimensional coordinates of the center of the anchor pipe (12) to be positioned based on the horizontal distances between the center of each positioned anchor pipe (11) and the center of the anchor pipe (12) to be positioned; S5: Compare the deviation between the three-dimensional coordinates of the center of the head of the anchor pipe to be positioned (12) and its design coordinates, adjust the anchor pipe to be positioned (12) and eliminate the deviation.

2. A method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 1, characterized in that: Before step S2, the method further includes preparing a universal rangefinder (1), wherein the universal rangefinder (1) includes a tube head instrument frame (3) and a rangefinder body (4); The bottom end of the tube head instrument rack (3) has a first circular plug tube (6) for coaxially inserting the tube head of the positioned anchor tube (11), the rangefinder body (4) is arranged at the top end of the tube head instrument rack (3), and a universal hinge (5) is arranged in the middle position of the tube head instrument rack (3).

3. The method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 2, characterized in that: The universal joint (5) includes a universal ball head (7) and a spherical base (8), and the tube head instrument rack (3) further includes an L-shaped rod (9) and a base rod (10); The end of the horizontal side of the L-shaped rod (9) is mounted with the rangefinder body (4), and the universal ball head (7) is arranged at the end of the vertical side of the L-shaped rod (9); the spherical base (8) is arranged at the top end of the vertical base rod (10), and the first circular plug tube (6) is arranged at the bottom end of the base rod (10).

4. The method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 2, wherein: Before step S2, the method further includes preparing a tube head prism (2), wherein the tube head prism (2) includes a prism rod (13) and a prism body (14), wherein the bottom end of the prism rod (13) has a second circular plug tube (15) coaxially inserted into the tube head of the anchor tube (12) to be positioned, and the prism body (14) is arranged at the top end of the prism rod (13).

5. The method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 4, characterized in that: All anchor pipes of the gravity anchor pipe group have the same inner and outer diameters, and the outer diameters of the first circular plug pipe (6) and the second circular plug pipe (15) are equal to the inner diameter of the anchor pipe.

6. A method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 1, characterized in that: The slope distance in step S2 includes: The slant distance from the center of each positioned anchor pipe (11) to the center of the anchor pipe (12) to be positioned is expressed as ;in, i is the pipe number of the positioned anchor pipe (11), j is the pipe number of the anchor pipe (12) to be positioned.

7. A method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 6, characterized in that: Step S3 includes: S30: Calculate the vertical distance from the center of the anchor pipe (11) to the rear anchor surface (16) : in, i is the pipe number of the positioned anchor pipe (11), is the height of the center of the universal distance meter (1) from the end face of the pipe head of the positioned anchor pipe (11), The actual length of the positioned anchor pipe (11), The center line of the positioned anchor pipe (11) is projected onto the XZ plane and its inclination angle to the Z axis; The center line of the positioned anchor pipe (11) is projected onto the YZ plane and its inclination angle to the Z axis; S31: Calculate the vertical distance from the head of the anchor pipe (12) to be positioned to the rear anchor surface (16) ; in, j is the pipe number of the anchor pipe (12) to be positioned, is the height of the center of the tube head prism (2) from the tube head end face of the anchor tube (12) to be positioned, is the actual length of the anchor pipe (12) to be positioned, The center line of the anchor pipe (12) to be positioned is projected onto the XZ plane and its inclination angle with the Z axis; The center line of the anchor pipe (12) to be positioned is projected onto the YZ plane and its inclination angle with the Z axis; S32: Calculate the horizontal distance from the center of the pipe head of the positioned anchor pipe (11) to the center of the pipe head of the anchor pipe to be positioned (12) : 。 8. The method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 1, characterized in that: Step S4 includes: If only the horizontal distances from the centers of the three positioned anchor pipes (11) to the center of the anchor pipe (12) to be positioned are measured, and the centers of the three positioned anchor pipes (11) and the center of the anchor pipe (12) to be positioned meet the graphic conditions of the three-side intersection; the coordinates of the center of the anchor pipe (12) to be positioned are calculated according to the three-side intersection coordinate formula.

9. A method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 1, characterized in that: Step S4 includes: If the horizontal distances from the centers of the heads of four or more positioned anchor pipes (11) to the center of the head of the anchor pipe (12) to be positioned are measured, the coordinates of the center of the head of the anchor pipe (12) to be positioned are calculated according to the principle of line intersection adjustment.

10. A method for quickly positioning a gravity anchor pipe group for a suspension bridge according to claim 1, characterized in that: Step S5 includes: S51: Calculate the deviation between the coordinates of the center of the head of the anchor pipe (12) to be positioned and the design coordinates; S52: adjusting the anchor pipe (12) to be positioned to move toward the design coordinates; S53: Repeat the calculation and adjustment process until the center coordinates of the pipe head of the anchor pipe (12) to be positioned are adjusted to the design coordinates; S54: the anchor pipe to be positioned (12) is changed to the positioned anchor pipe (11), and the positioning of the next anchor pipe to be positioned (12) is continued.

Images