Anchor pipe positioning and mounting method

Abstract

The invention provides an anchor pipe positioning and mounting method, and relates to the technical field of bridge construction. The anchor pipe positioning and mounting method comprises the following steps: mounting an anchor pipe according to a positioning point of the anchor pipe and a pre-mounted guide plate; a first branch midpoint on the anchor pipe is obtained, and a first branch midline is drawn on the anchor pipe according to the first branch midpoint; determining a first mark point below the first midpoint, and measuring an actual horizontal distance and an actual lateral offset distance according to the first mark point; and the mounting angle of the anchor pipe is adjusted according to the actual horizontal distance and the actual transverse offset distance. The anchor pipe positioning and mounting method is easy and convenient to operate, high-precision adjustment of the mounting angle of the anchor pipe can be achieved through accurate measurement, it is ensured that the anchor pipe meets the design requirement, reworking caused by the incorrect mounting angle is avoided, and therefore time and cost are saved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to an anchor pipe positioning and installation method. Background Art

[0002] As an important connector in bridge structures, anchor pipes are mainly used to fix the cables or prestressed tendons of bridges in anchor boxes to ensure the stability and safety of bridges. In particular, the correct installation of anchor pipes is crucial in the construction of cable-stayed bridges and suspension bridges. Figure 1 Some of the anchor pipes shown span across structural segments, and it is not possible to complete all the work during the factory installation, so some installation steps must be carried out on site. However, under on-site conditions, some parts of the anchor pipe cannot be measured and installed using equipment such as a total station.

[0003] To solve this problem, the current on-site positioning and installation of anchor pipes mostly adopts the wire pulling method. This method measures the offset of the pipe mouth by pulling the wire straight from the anchor point on the tower to the anchor point on the beam, thereby guiding the installation of the anchor pipe. However, this method has the following limitations: (1) When the space of the anchor box is limited, the operation is difficult and difficult to implement effectively; (2) When the measurement distance is large, the wire pulling may not be able to remain completely straight, resulting in a decrease in installation accuracy. Summary of the invention

[0004] The problem solved by the present invention is how to efficiently realize high-precision anchor pipe positioning installation.

[0005] In order to solve the above problems, the present invention provides an anchor pipe positioning and installation method, comprising:

[0006] Installing the anchor pipe according to the anchor pipe's positioning point and the pre-installed guide plate;

[0007] Obtaining a first sub-midpoint on the anchor pipe, and drawing a first sub-midline on the anchor pipe according to the first sub-midpoint;

[0008] Determine a first marking point below the first dividing midpoint, and measure the actual horizontal distance and the actual lateral offset distance according to the first marking point;

[0009] The installation angle of the anchor pipe is adjusted according to the actual horizontal distance and the actual lateral offset distance.

[0010] Optionally, before installing the anchor pipe according to the positioning point of the anchor pipe and the pre-installed guide plate, the method further includes:

[0011] When the three-dimensional assembly is performed in the factory, the positioning point of the anchor pipe is made on the wall plate of the anchor box, and the anchor pipe is pre-assembled according to the positioning point, so that the angle between the anchor pipe and the longitudinal center line of the bridge is a first preset angle, wherein a part of the anchor pipe is located outside the anchor box, and another part of the anchor pipe passes through the wall plate and is located inside the anchor box;

[0012] The guide plate is installed on the wall plate according to the relative positions of the anchor pipe and the wall plate.

[0013] Optionally, the step of installing the guide plate on the wall plate according to the relative positions of the anchor pipe and the wall plate comprises:

[0014] The guide plate is installed on the inner surface of the wall panel at a position a first preset distance from the anchor pipe.

[0015] Optionally, the anchor pipe is provided with two anchor pressure plates arranged opposite to each other on both sides of a preset direction, the preset direction is perpendicular to the length direction of the anchor pipe, and the obtaining of the first sub-midpoint on the anchor pipe comprises:

[0016] The second right-angled side of the first square is placed close to any side surface of the anchor plate and the first right-angled side of the first square is in contact with the anchor pipe, and the intersection of the first right-angled side and the anchor pipe is determined as the first midpoint, wherein the first right-angled side is perpendicular to the second right-angled side, and the first right-angled side is perpendicular to the two anchor plates.

[0017] Optionally, the anchor pipe positioning and installation method further includes:

[0018] The fourth right-angled side of the second square is placed close to any side surface of the anchor plate and in contact with the anchor pipe, and the intersection of the fourth right-angled side and the anchor pipe is determined as the third midpoint, wherein the second right-angled side and the fourth right-angled side are on the same straight line, and the second square ruler also includes a third right-angled side, which is perpendicular to the fourth right-angled side, and the third right-angled side and the first right-angled side are respectively located on both sides of the anchor pipe.

[0019] Optionally, determining a first marking point below the first dividing midpoint, and measuring the actual horizontal distance and the actual lateral offset distance according to the first marking point includes:

[0020] Calculate the spacing distance according to the second preset distance and the second preset angle, determine the position of the spacing distance from the first sub-midpoint on the anchor pipe in the direction close to the wall plate as the second sub-midpoint, and the second preset angle is determined by the first preset angle;

[0021] Determine a position below the first sub-midpoint and at the second preset distance from the first sub-midpoint as the first marking point, and place a level at the first marking point;

[0022] Using the light beam emitted by the level meter, measure the horizontal distance between the first marking point and the second sub-midpoint to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint and the light beam to obtain the actual lateral offset distance;

[0023] Wherein, the light beam is parallel to the longitudinal center line of the bridge.

[0024] Optionally, the light beam emitted by the level meter measures the horizontal distance between the first marking point and the second sub-midpoint to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint and the light beam to obtain the actual lateral offset distance, including:

[0025] Draw a straight line perpendicular to the light beam through the second sub-midpoint, wherein the straight line intersects the light beam at a second marking point;

[0026] Measuring the distance from the first marking point to the second marking point to obtain the actual horizontal distance;

[0027] The distance from the second sub-midpoint to the second marking point is measured to obtain the actual lateral offset distance.

[0028] Optionally, the second preset distance has a value range of 1400 mm-1600 mm.

[0029] Optionally, the adjusting the installation angle of the anchor pipe according to the actual horizontal distance and the actual lateral offset distance includes:

[0030] Determine a first deviation according to the actual horizontal distance and the theoretical horizontal distance;

[0031] Determining a second deviation according to the actual lateral offset distance and the theoretical lateral offset distance;

[0032] The installation angle of the anchor pipe is adjusted according to the first deviation and the second deviation.

[0033] Optionally, the anchor pipe positioning and installation method further includes:

[0034] A trigonometric function conversion is performed according to the second preset angle and the second preset distance to determine the theoretical horizontal distance and the theoretical lateral offset distance.

[0035] The anchor pipe positioning and installation method of the present invention has the beneficial effect that during on-site installation, the anchor pipe can be quickly and accurately placed at the predetermined position by means of the positioning points predetermined in the factory and the pre-installed guide plates, which simplifies the on-site operation process and speeds up the construction progress. After the anchor pipe is located at the predetermined position, the first sub-midpoint on the anchor pipe is determined, and a straight line passing through the first sub-midpoint and parallel to the central axis of the anchor pipe is drawn as the first sub-midline, which provides a clear reference line for subsequent measurement and adjustment and ensures the accuracy of the measurement. Then, a point is taken below the first sub-midpoint as the first marking point, and the actual horizontal distance and the actual lateral offset distance can be measured according to the first marking point. Among them, determining the first marking point is conducive to making the measurement process more convenient and intuitive, reducing the complexity of operation and improving work efficiency. According to the actual horizontal distance and the actual lateral offset distance, it can be directly judged whether the anchor pipe is installed in place. If it is found that the anchor pipe is not installed in place, it is necessary to adjust its actual horizontal distance and lateral offset distance to correct the installation angle of the anchor pipe, ensure that it is located in the correct position, and ensure that the load is evenly distributed, thereby improving the stability and safety of the entire bridge structure. The measurement and adjustment of the above anchor pipe positioning installation method are all carried out in the box, and there is no problem of high-altitude operation, so the operation is safer. At the same time, the method is easy to operate and can achieve high-precision adjustment of the anchor pipe installation angle through precise measurement to ensure that it meets the design requirements, avoid rework caused by incorrect installation angle, and thus save time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the current anchor pipe positioning and installation;

[0037] Figure 2 A schematic diagram of a flow chart of an anchor pipe positioning and installation method according to an embodiment of the present invention;

[0038] Figure 3 A schematic flow chart of another anchor pipe positioning and installation method according to an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of the relative positions of the anchor pipe and the guide plate according to an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the relative positions of another anchor pipe and a guide plate according to an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of obtaining a first dividing midpoint and a third dividing midpoint according to an embodiment of the present invention;

[0042] Figure 7 It is a schematic diagram of measuring the actual horizontal distance and the actual lateral offset distance according to an embodiment of the present invention.

[0043] Reference numerals:

[0044] 1. Anchor pipe; 2. Anchor plate; 3. Guide plate; 31. First guide plate; 32. Second guide plate; 4. Wall plate; 5. First square; 6. Second square; 7. First midpoint; 8. Second midpoint; 9. Third midpoint; 10. First marking point; 11. Second marking point. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0046] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0047] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0048] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0049] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0050] In the related art, the wire pulling method is often used to locate and install the anchor pipe on site. The specific operation steps of this method are: straighten the wire between the anchor point on the bridge tower and the anchor point on the beam to ensure that the wire is in the designed position. Measure the deviation between the actual position of the anchor pipe mouth and the designed position through the wire pulling line. Use a measuring tool to record the actual offset distance and adjust the position of the anchor pipe accordingly. Although the wire pulling method is effective in many cases, it also has some significant limitations:

[0051] First, it is difficult to operate in a space-constrained environment. In some bridge structures, especially complex cable-stayed bridges or suspension bridges, the space at the anchor box station is very limited. In this case, workers may not be able to straighten the wire smoothly or accurately measure the offset distance. This not only increases the complexity of the operation, but may also lead to inaccurate measurement results, thus affecting the correct installation of the anchor pipe.

[0052] Second, the measurement accuracy is low during long-distance measurements. When the measuring distance is large, the wire may bend or sag slightly due to its own weight or other external factors (such as wind force, temperature changes, etc.), resulting in an inability to maintain a completely straight line, which will cause deviations in the measurement results. In addition, the elasticity of the wire itself may also cause slight deformations during the straightening process, further affecting the measurement accuracy. In long-distance measurements, even small deviations will be magnified, ultimately leading to errors in the installation position of the anchor pipe. This error will not only affect the installation quality of the anchor pipe, but may also pose potential risks to the safety and stability of the entire bridge structure.

[0053] In view of the problems existing in the above-mentioned related technologies, this embodiment provides an anchor pipe positioning and installation method.

[0054] like Figure 2 As shown, an anchor pipe positioning and installation method provided by an embodiment of the present invention includes:

[0055] S100: installing the anchor pipe 1 according to the positioning point of the anchor pipe 1 and the pre-installed guide plate 3;

[0056] Specifically, the positioning points are specific positions pre-marked on the anchor box siding 4 during the pre-assembly stage of the factory, which are used to determine the exact installation position of the anchor pipe 1. These points are determined based on the design drawings and coordinate system. In the factory, technicians will use high-precision measuring instruments (such as total stations, theodolites or laser rangefinders) to measure and mark these positioning points on the siding 4. To further ensure accuracy, these positioning points will be calibrated and holes will be punched on the siding 4 so that the anchor pipe 1 can be inserted from the siding 4 into the anchor box. During on-site installation, these positioning points will serve as a reference benchmark to guide the initial placement and subsequent adjustments of the anchor pipe 1. Therefore, the location selection of the positioning points is very critical. Accurate positioning points can improve the accuracy and construction efficiency of the installation of the anchor pipe 1 and reduce rework caused by position deviations.

[0057] The guide plate 3 is a pre-installed device, usually fixed on the siding 4 or other structure of the bridge, and is used to guide the installation direction and position of the anchor pipe 1. The guide plate 3 can be made of a variety of materials, the most common of which are steel, aluminum alloy or high-strength plastic. The specific material depends on the design requirements and the use environment. The guide plate 3 is generally located near the position where the anchor pipe 1 needs to be installed. Its function is to provide a preliminary alignment reference for the anchor pipe 1 to ensure that the anchor pipe 1 can be easily inserted and installed on site. By pre-installing the guide plate 3, on-site operations can be simplified, installation accuracy can be improved, and rework caused by position deviation can be reduced, thereby improving construction efficiency and overall project quality.

[0058] S200: Acquire a first sub-midpoint 7 on the anchor pipe 1, and draw a first sub-midline on the anchor pipe 1 according to the first sub-midpoint 7;

[0059] Specifically, the first sub-midpoint 7 is a key reference point on the anchor pipe 1, which is usually located at a specific position along the length of the anchor pipe 1. In order to mark this position, a small dot or cross mark can be drawn on the surface of the anchor pipe 1 with a paint pen or a marker, ensuring that the mark is clearly visible and the position is accurate. It is recommended to perform multiple checks and calibrations to ensure that the position of the first sub-midpoint 7 is correct. Next, place a ruler or a long ruler on the anchor pipe 1 so that it passes through the first sub-midpoint 7 and is parallel to the central axis of the anchor pipe 1. Then, use a paint pen or a marker to draw a straight line on the anchor pipe 1 along the ruler or long ruler. This straight line is the first sub-midline.

[0060] S300: determining a first marking point 10 below the first sub-midpoint 7, and measuring an actual horizontal distance and an actual lateral offset distance according to the first marking point 10;

[0061] Specifically, a measuring tool such as a ruler or a tape measure is used to find a suitable point vertically below the first sub-center point 7, and mark it as the first marking point 10, ensuring that this point is clearly visible and will not move easily. Then, after the first marking point 10 is determined, a geometric relationship between it and the first sub-center line is constructed so that the actual horizontal distance and lateral offset distance can be directly measured using a high-precision measuring device (such as a total station, theodolite or laser rangefinder).

[0062] In some embodiments, a plumb bob can be hung at the first sub-midpoint 7. The line of the plumb bob should be long enough to accurately extend to the first marking point 10, and the line must have sufficient strength and stability to avoid bending or deformation due to its own weight or other external factors. The weight part of the plumb bob (usually made of metal or lead) needs to have sufficient mass to remain stable in the face of external interference such as wind, preventing it from swinging or deviating from the vertical direction. When the top of the plumb bob is fixed at the first sub-midpoint 7, a clamp, magnetic device or other appropriate fixing method can be used to ensure that it remains stationary during the entire measurement period, so that the plumb bob can naturally drop vertically to complete stillness. After that, the first marking point 10 is determined, and a high-precision measuring device (such as a total station, theodolite or laser rangefinder) is used to perform specific measurements of the actual horizontal distance and the actual lateral offset distance.

[0063] S400: adjusting the installation angle of the anchor pipe 1 according to the actual horizontal distance and the actual lateral offset distance.

[0064] Specifically, by measuring the actual horizontal distance and lateral offset distance, it can be determined whether the anchor pipe 1 is installed at the expected position in the design requirements. If it is found that the actual installation position of the anchor pipe 1 deviates from the expected position, a jack or a hydraulic cylinder can be used to adjust the actual horizontal distance and lateral offset distance of the anchor pipe 1 to correct its installation angle.

[0065] After the adjustment is completed, re-measure the actual horizontal distance and actual lateral offset distance from the plumb line to the first sub-center line until the anchor pipe 1 is in the expected position. After the adjustment is in place, use a temporary support device (such as a clamp or bracket) to temporarily fix the anchor pipe 1 to prevent it from moving during subsequent operations. After confirming that all measured values ​​meet the design requirements, use welding, bolting or other fixing methods to firmly fix the anchor pipe 1 in the final position to ensure uniform load distribution and improve the stability and safety of the entire bridge structure.

[0066] In this embodiment, the beneficial effect of the anchor pipe positioning and installation method of the present invention is that during on-site installation, the anchor pipe 1 can be quickly and accurately placed at the predetermined position by using the positioning points predetermined in the factory and the pre-installed guide plate 3, which simplifies the on-site operation process and speeds up the construction progress. After the anchor pipe 1 is located at the predetermined position, the first sub-midpoint 7 on the anchor pipe 1 is determined, and a straight line passing through the first sub-midpoint 7 and parallel to the central axis of the anchor pipe 1 is drawn as the first sub-midline, which provides a clear reference line for subsequent measurement and adjustment to ensure the accuracy of the measurement. Then, a point is taken below the first sub-midpoint 7 as the first marking point 10, and the actual horizontal distance and the actual lateral offset distance can be measured based on the first marking point 10. Among them, determining the first marking point is conducive to making the measurement process more convenient and intuitive, reducing the complexity of operation, and improving work efficiency. According to the actual horizontal distance and the actual lateral offset distance, it can be directly judged whether the anchor pipe 1 is installed in place. If it is found that the anchor pipe 1 is not installed in place, it is necessary to adjust its actual horizontal distance and lateral offset distance to correct the installation angle of the anchor pipe 1 to ensure that it is in the correct position and the load is evenly distributed, thereby improving the stability and safety of the entire bridge structure. The measurement and adjustment of the above-mentioned anchor pipe 1 positioning and installation method are all carried out in the box, and there is no problem of high-altitude operation, so the operation is safer. At the same time, the method is easy to operate, and can achieve high-precision adjustment of the installation angle of the anchor pipe 1 through precise measurement, ensuring that it meets the design requirements, avoiding rework due to incorrect installation angles, and thus saving time and costs.

[0067] Optionally, before installing the anchor pipe 1 according to the positioning point of the anchor pipe 1 and the pre-installed guide plate 3, the method further includes:

[0068] When the three-dimensional assembly is performed in the factory, the positioning point of the anchor pipe 1 is made on the wall plate 4 of the anchor box, and the anchor pipe 1 is pre-assembled according to the positioning point, so that the angle between the anchor pipe 1 and the longitudinal center line of the bridge is a first preset angle, wherein a part of the anchor pipe 1 is located outside the anchor box, and another part of the anchor pipe 1 passes through the wall plate 4 and is located inside the anchor box;

[0069] The guide plate 3 is installed on the wall plate 4 according to the relative positions of the anchor pipe 1 and the wall plate 4 .

[0070] Specifically, Figure 3As shown, during the three-dimensional assembly stage in the factory, the technicians determine the specific position (positioning point, first preset angle) of the anchor pipe 1 according to the design drawings and the coordinate system. Use high-precision measuring instruments (such as total stations, laser rangefinders, etc.) to accurately mark the positioning point of the anchor pipe 1 on the wall plate 4 of the anchor box, that is, the position where the anchor pipe 1 needs to be aligned each time it is installed. According to the marked positioning point, the anchor pipe 1 is pre-assembled to the anchor box so that the angle between the anchor pipe 1 and the longitudinal center line of the bridge is the first preset angle. At this time, a part of the anchor pipe 1 is located outside the anchor box, exposed to the external environment, and is used to connect with other structural components (such as bridge towers, piers or other supporting structures). The other part of the anchor pipe 1 extends to the internal space of the anchor box through the wall plate 4 of the anchor box, which is used to transfer external loads (such as the dead weight of the bridge, vehicle loads, etc.) to the anchor box and other supporting structures to ensure the stability and safety of the entire structure. During the pre-assembly process, ensure that the anchor pipe 1 is completely aligned with the positioning point, and use a temporary fixing device (such as a clamp or bracket) to fix it in place. Next, the guide plate 3 is installed between the pre-assembled anchor pipe 1 and the anchor box wall plate 4 to ensure that the guide plate 3 is close to the wall plate 4. Guided by the guide plate 3, the anchor pipe 1 can be quickly and accurately inserted into the anchor box on site, reducing the time for on-site adjustment and improving construction efficiency.

[0071] In this optional embodiment, the environment in the factory is relatively stable and controllable, and high-precision measuring instruments and strict quality control procedures can be used to ensure the accuracy of each positioning point, which can reduce the time and workload of on-site adjustments and improve construction efficiency. The anchor pipe 1 is pre-assembled in the factory, and the anchor pipe 1 can be preliminarily aligned and fixed, which greatly simplifies the complexity of on-site installation and reduces the risk of errors caused by changes in on-site conditions. According to the relative positions of the pre-assembled anchor pipe 1 and the wall panel 4, the guide plate 3 is installed on the wall panel 4 to provide a clear alignment reference for on-site installation, which can ensure that the anchor pipe 1 can be quickly and accurately inserted into the anchor box on site, reducing the possibility of rework and reducing the difficulty and time of on-site operations.

[0072] In addition, the determination of the positioning point, the pre-assembly of the anchor pipe 1 and the installation of the guide plate 3 are all carried out in the box, and there is no problem of high-altitude operation, so the operation is safer.

[0073] Optionally, the step of installing the guide plate 3 on the wall plate 4 according to the relative positions of the anchor pipe 1 and the wall plate 4 comprises:

[0074] The guide plate 3 is installed on the inner surface of the wall panel 4 at a position a first preset distance away from the anchor pipe 1 .

[0075] Specifically, the guide plate 3 is firmly fixed to the wall plate 4 using an appropriate fixing method (such as welding or bolting) to ensure that it is in close contact with the inner surface of the wall plate 4. During the fixing process, it is necessary to ensure that the guide plate 3 is along the length direction of the anchor pipe 1, and the distance between the guide plate 3 and the anchor pipe 1 is a first preset distance. High-precision measuring instruments (such as total stations, laser rangefinders, etc.) can be used for calibration. After the fixing is completed, the position and angle of the guide plate 3 are checked again to ensure that it meets the design requirements.

[0076] Among them, the first preset distance is the gap reserved between the guide plate 3 and the anchor pipe 1, which is set based on the size of the anchor pipe 1 and the requirements of installation accuracy. If the first preset distance is set too small, selecting an appropriate preset value can ensure that the guide plate 3 can effectively guide the insertion direction of the anchor pipe 1 and will not interfere with the anchor pipe 1 or other structural components. If the first preset distance is set too small, friction will be generated between the guide plate 3 and the anchor pipe 1, increasing the resistance during installation, making the installation of the anchor pipe 1 more difficult, and not conducive to the subsequent adjustment of the angle of the anchor pipe 1; if the first preset distance is set too large, the guiding effect of the guide plate 3 will be weakened, so that the anchor pipe 1 may be offset during the insertion process, thereby increasing the difficulty of adjusting the angle of the anchor pipe 1 and increasing the probability of rework. Therefore, setting an appropriate preset value (such as 2mm) can not only effectively guide the insertion direction of the anchor pipe 1, but also avoid various problems caused by too small or too large gaps, and achieve high-precision and efficient positioning and installation of the anchor pipe 1. In some embodiments, the value range of the first preset distance is 1mm-3mm, preferably 2mm.

[0077] like Figure 4 As shown, when only one guide plate 3 is used, a hole should be opened on the guide plate 3 to ensure that the side of the hole is parallel to the side of the anchor pipe 1 and maintain a 2mm gap. In addition, the bottom area of ​​the hole should be larger than the bottom area of ​​the anchor pipe 1 to ensure that the anchor pipe 1 can pass through smoothly.

[0078] like Figure 5 As shown, when two guide plates 3 are used, the first guide plate 31 should be arranged on one side of the anchor pipe 1, and its side close to the anchor pipe 1 is arranged obliquely, and extends downward to remain parallel to the side of the anchor pipe 1, and a distance of 2 mm is maintained between the two. The second guide plate 32 is located on the other side of the anchor pipe 1, and its side close to the anchor pipe 1 is also arranged obliquely, and extends downward to remain parallel to the side of the anchor pipe 1, and a distance of 2 mm is also maintained between the two. This arrangement can ensure that the two guide plates 3 effectively guide the anchor pipe 1, while providing sufficient clearance to avoid direct contact.

[0079] In this optional embodiment, when the overall assembly is carried out in the factory, the installation position of the guide plate 3 is found on the inner surface of the wall panel 4 of the anchor pipe 1, so that the guide plate 3 maintains a distance of 2 mm from the anchor pipe 1, ensuring that the guide plate 3 can effectively guide the insertion direction of the anchor pipe 1 and avoid various problems caused by too small or too large a gap, thereby achieving high-precision and efficient positioning and installation of the anchor pipe 1.

[0080] Optionally, the anchor pipe 1 is provided with two anchor plates 2 arranged opposite to each other on both sides of a preset direction, the preset direction is perpendicular to the length direction of the anchor pipe 1, and the obtaining of the first sub-midpoint 7 on the anchor pipe 1 includes:

[0081] The second right-angled side of the first square 5 is placed close to any side surface of the anchor plate 2 and the first right-angled side of the first square 5 is in contact with the anchor pipe 1, and the intersection of the first right-angled side and the anchor pipe 1 is determined as the first midpoint 7, wherein the first right-angled side is perpendicular to the second right-angled side, and the first right-angled side is perpendicular to the two anchor plates 2.

[0082] It should be noted that if Figure 1 As shown, the side surface with the largest area in the first anchor plate 2 is in close contact with the side surface of the anchor pipe 1 and is tangent to the side surface of the anchor pipe 1. The side surface with the largest area in the second anchor plate 2 is also in close contact with the side surface of the anchor pipe 1 and is tangent to the side surface of the anchor pipe 1. The first anchor plate 2 is arranged in parallel with the second anchor plate 2 to ensure that the relative position between the two is fixed and symmetrical.

[0083] Specifically, Figure 6 As shown, the first square 5 includes a first right angle side and a second right angle side. The second right angle side is pressed against the side surface of an anchor plate 2, which is parallel to the bottom surface of the anchor pipe 1, and the second right angle side is aligned with the edge of the anchor plate 2. The first right angle side is perpendicular to the side surface, and is perpendicular to the side surface of the other anchor plate 2 which is parallel to the bottom surface of the anchor pipe 1, and contacts the anchor pipe 1 to form an intersection point, that is, the tangent point obtained by the first right angle side and the anchor pipe 1, which is recorded as the first sub-midpoint 7.

[0084] In this optional embodiment, by placing the first square 5 close to the side parallel to the bottom surface of the anchor plate 2 and the anchor pipe 1, and making the first right-angled side of the first square 5 perpendicular to any anchor plate 2, and making the first right-angled side of the first square 5 contact the anchor pipe 1, it can be ensured that the first square 5 has a correct relative position with the anchor pipe 1 and the anchor plate 2, which is conducive to accurately finding the first sub-midpoint 7 on the anchor pipe 1, thereby facilitating the subsequent measurement of the actual horizontal distance and the actual lateral offset distance. In addition, the method for determining the first sub-midpoint 7 is simple and intuitive, does not require complex measuring tools or techniques, can significantly reduce the difficulty of on-site operations, and improve the efficiency of positioning and installing the anchor pipe 1.

[0085] Optionally, the anchor pipe positioning and installation method further includes:

[0086] The fourth right-angled side of the second square ruler 6 is placed close to any side surface of the anchor plate 2 and in contact with the anchor pipe 1, and the intersection of the fourth right-angled side and the anchor pipe 1 is determined as the third midpoint 9, wherein the second right-angled side and the fourth right-angled side are on the same straight line, and the second square ruler 6 also includes a third right-angled side, the third right-angled side is perpendicular to the fourth right-angled side, and the third right-angled side and the first right-angled side are respectively located on both sides of the anchor pipe 1.

[0087] Specifically, Figure 6 As shown, the second square 6 includes a third right-angled side and a fourth right-angled side. The fourth right-angled side is pressed against a side of an anchor plate 2, which side is the same as the side to which the second right-angled side of the first square 5 is pressed, and the fourth right-angled side and the second right-angled side of the first square 5 are located on the same straight line. At the same time, the third right-angled side is arranged opposite to the first right-angled side of the first square 5, and is respectively located on both sides of the anchor pipe 1. The third right-angled side is brought into contact with the anchor pipe 1 to form an intersection, that is, the tangent point obtained by the third right-angled side and the anchor pipe 1 being tangent, which is recorded as the third sub-midpoint 9.

[0088] In some embodiments, the first midpoint and the second midpoint are two points where two right-angled sides of the same square intersect the anchor pipe 1. Specifically, the second right-angled side of the first square 5 is pressed against the side surface of an anchor plate 2, which is parallel to the bottom surface of the anchor pipe 1, and the second right-angled side of the first square 5 is aligned with the edge of the anchor plate 2. At the same time, the first right-angled side and the second right-angled side of the first square 5 are respectively brought into contact with the anchor pipe 1 to obtain two intersection points. Among them, the first midpoint is the tangent point obtained by the first right-angled side of the first square 5 being tangent to the anchor pipe 1, and the second midpoint is the tangent point obtained by the second right-angled side of the first square 5 being tangent to the anchor pipe 1.

[0089] In this optional embodiment, by placing the second square 6 tightly against the side surface of the anchor plate 2 parallel to the bottom surface of the anchor pipe 1, and making the fourth right-angled side of the second square 6 and the second right-angled side of the first square 5 on the same straight line, and at the same time making the third right-angled side of the second square 6 in contact with the anchor pipe 1, it can be ensured that the second square 6 has a correct relative position with the anchor pipe 1, the anchor plate 2 and the first square 5, which is conducive to accurately finding the third midpoint 9 on the anchor pipe 1 and verifying the consistency of the on-site anchor pipe 1 data with the pre-assembled data of the anchor pipe 1 in the factory.

[0090] Optionally, determining a first marking point 10 below the first sub-midpoint 7, and measuring the actual horizontal distance and the actual lateral offset distance according to the first marking point 10, includes:

[0091] Calculate the spacing distance according to the second preset distance and the second preset angle, determine the position of the spacing distance from the first sub-midpoint 7 on the anchor pipe 1 in the direction close to the wall plate 4 as the second sub-midpoint 8, and the second preset angle is determined by the first preset angle;

[0092] Determine the position below the first sub-midpoint 7 and the second preset distance from the first sub-midpoint 7 as the first marking point 10, and place a level at the first marking point 10;

[0093] By using the light beam emitted by the level meter, measure the horizontal distance between the first marking point 10 and the second sub-midpoint 8 to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint 8 and the light beam to obtain the actual lateral offset distance;

[0094] Wherein, the light beam is parallel to the longitudinal center line of the bridge.

[0095] Specifically, Figure 7 As shown, in addition to the first sub-midpoint 7, there is also a second sub-midpoint 8 on the anchor pipe. The position of the first sub-midpoint 7 has been determined by the previous steps. According to the second preset distance and the second preset angle, the distance between the first sub-midpoint 7 and the second sub-midpoint 8 can be calculated by trigonometric function, so that the position of the second sub-midpoint 8 can be determined in the direction close to the wall plate 4 using a tool such as a ruler or a tape measure. Among them, there is a certain relationship between the second preset angle and the first preset angle, and the second preset angle can be determined by the first preset angle. Then, a clear and easily identifiable point is selected directly below the first sub-midpoint 7 as the first marking point 10. This point should be fixed, separated from the first sub-midpoint 7 by the second preset distance, and remain unchanged throughout the installation process. Place the laser level accurately on the first marking point 10, and ensure that the instrument is stable and horizontal to ensure the accuracy of the laser beam. The laser level can be calibrated using the automatic leveling function or manually. After starting the laser level, its laser transmitter will emit a laser beam parallel to the longitudinal centerline of the bridge. This laser beam provides a horizontal and vertical reference line in the entire working area, which can measure the actual horizontal distance and actual lateral offset distance of the anchor pipe 1 installed based on the positioning point and the guide plate 3, that is, the actual horizontal distance between the first marking point 10 and the second sub-midpoint 8, and the actual lateral offset distance between the second sub-midpoint 8 and the beam.

[0096] In this optional embodiment, the position of the second sub-midpoint 8 is first determined by the second preset distance and the second preset angle, providing an accurate reference point for subsequent measurements, ensuring that each measurement is performed under the same reference, and improving the consistency of the measurement results. Then, the first marking point 10 is determined at a position directly below the first sub-midpoint 7, and a laser level is placed there. The laser level can emit a light beam parallel to the longitudinal centerline of the bridge, providing an accurate horizontal reference line for the entire working area. This makes it possible to quickly and intuitively measure the actual horizontal distance from the first marking point 10 to the second sub-midpoint 8 and the actual lateral offset distance from the second sub-midpoint 8 to the light beam, simplifying the measurement process and improving measurement efficiency.

[0097] Optionally, the light beam emitted by the level meter measures the horizontal distance between the first marking point 10 and the second sub-midpoint 8 to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint 8 and the light beam to obtain the actual lateral offset distance, including:

[0098] Draw a straight line perpendicular to the light beam through the second sub-midpoint 8, wherein the straight line intersects the light beam at a second marking point 11;

[0099] Measuring the distance from the first marking point 10 to the second marking point 11 to obtain the actual horizontal distance;

[0100] The distance from the second sub-midpoint 8 to the second marking point 11 is measured to obtain the actual lateral offset distance.

[0101] Specifically, Figure 7 As shown, at the second sub-midpoint 8, a straight line perpendicular to the laser beam is drawn using a ruler. This vertical line will intersect with the laser beam at one point, and this intersection is the second marking point 11. Use a high-precision measuring tool (such as a tape measure, laser rangefinder, etc.) to measure the distance from the first marking point 10 to the second marking point 11 multiple times to verify the consistency of the data, and use the final result as the actual horizontal distance. Similarly, use a high-precision measuring tool (such as a tape measure, laser rangefinder, etc.) to measure the distance from the second sub-midpoint 8 to the second marking point 11 multiple times to verify the consistency of the data, and use the final result as the actual lateral offset distance.

[0102] In this optional embodiment, by drawing a straight line perpendicular to the laser beam at the second sub-midpoint 8, an accurate geometric relationship is established, thereby providing an accurate reference point for subsequent measurement, namely the second marking point 11. By using a measuring tool (such as a tape measure or a laser rangefinder) to directly measure the distance between the first marking point 10 and the second marking point 11, high-precision actual horizontal distance data can be obtained. Similarly, by measuring the distance between the second sub-midpoint 8 and the second marking point 11, high-precision actual lateral offset distance data can be obtained. This direct measurement method not only reduces the errors caused by multiple conversions or indirect measurements, but also significantly improves the accuracy and work efficiency of the measurement.

[0103] Optionally, the second preset distance has a value range of 1400 mm-1600 mm.

[0104] Specifically, the first marking point 10 is a clear marking point selected on the reference piece. The first sub-midpoint 7 is a key position determined on the anchor pipe 1 by a square. Use an accurate measuring tool, such as a tape measure or a laser rangefinder, to measure the straight-line distance from the first marking point 10 to the first sub-midpoint 7, which should be controlled between 1400mm and 1600mm. In order to achieve the best installation effect, the straight-line distance between the first marking point 10 and the first sub-midpoint 7 can be set to 1500mm.

[0105] In this optional embodiment, determining the distance setting between the first marking point 10 and the first sub-midpoint 7 can effectively control the variables, facilitate the comparison of the actual horizontal distance with the theoretical horizontal distance, the actual lateral offset distance with the theoretical lateral offset distance, and thus determine whether the anchor pipe 1 is in the correct position. Setting this distance between 1400 mm and 1600 mm is based on experience and the requirements of standard operating procedures to ensure the accuracy and repeatability of measuring the actual horizontal distance and the actual lateral offset distance.

[0106] Optionally, the adjusting the installation angle of the anchor pipe 1 according to the actual horizontal distance and the actual lateral offset distance includes:

[0107] Determine a first deviation according to the actual horizontal distance and the theoretical horizontal distance;

[0108] Determining a second deviation according to the actual lateral offset distance and the theoretical lateral offset distance;

[0109] The installation angle of the anchor pipe 1 is adjusted according to the first deviation and the second deviation.

[0110] Specifically, Figure 3As shown, the difference between the actual horizontal distance and the theoretical horizontal distance is calculated to obtain the first deviation. If the actual distance is greater than the theoretical distance, the first deviation is a positive value; if the actual distance is less than the theoretical distance, the first deviation is a negative value. Similarly, the difference between the actual lateral offset distance and the theoretical lateral offset distance is calculated to obtain the second deviation. If the actual distance is greater than the theoretical distance, the second deviation is a positive value; if the actual distance is less than the theoretical distance, the second deviation is a negative value. When the first deviation and the second deviation are both 0, it means that the anchor pipe 1 is installed in place and is located in the correct position, meeting the design requirements. If the first deviation and / or the second deviation is not 0, it means that the anchor pipe 1 is not installed in place, the position has shifted, and does not meet the design requirements. At this time, it is necessary to adjust the angle of the anchor pipe 1 to ensure that the load is evenly distributed, thereby improving the stability and safety of the entire bridge structure.

[0111] Assuming that the theoretical horizontal distance is 1500 mm and the actual horizontal distance measured is 1480 mm, the first deviation is 1500 mm-1480 mm=20 mm (negative deviation).

[0112] Assuming that the theoretical lateral offset distance is 1000 mm and the actual lateral offset distance measured is 1020 mm, the second deviation is 1020 mm-1000 mm=20 mm (positive deviation).

[0113] In this optional embodiment, by simple calculation, the difference between the actual horizontal distance and the theoretical horizontal distance (first deviation) and the difference between the actual lateral offset distance and the theoretical lateral offset distance (second deviation) are calculated, which can save calculation time and improve the efficiency of the positioning and installation of the anchor pipe 1. Through the comprehensive analysis of the first deviation and the second deviation, the position deviation of the anchor pipe 1 in two dimensions can be directly reflected, and the position state of the anchor pipe 1 can be fully understood, so that the subsequent adjustment process can be more targeted. Construction personnel can make adjustment decisions quickly based on the specific values ​​of the two deviations, effectively eliminate any deviation from the design position, and ensure that the anchor pipe 1 is finally installed in the correct position, which not only improves the accuracy of the construction, but also enhances the stability and safety of the entire bridge structure.

[0114] In addition, the installation and adjustment process of the anchor pipe 1 is all carried out in the box, and there is no problem of high-altitude operation, so the operation is safer.

[0115] Optionally, the anchor pipe positioning and installation method further includes:

[0116] A trigonometric function conversion is performed according to the second preset angle and the second preset distance to determine the theoretical horizontal distance and the theoretical lateral offset distance.

[0117] Specifically, during the positioning and installation process of the anchor pipe 1, in order to ensure the accurate position of the anchor pipe 1, it is necessary to perform trigonometric function conversion based on the angle between the anchor pipe 1 and the longitudinal center line of the bridge (the second preset angle) and the straight-line distance between the first marking point 10 and the first midpoint 7 (the second preset distance) given in the design drawings or specifications, so as to determine the theoretical horizontal distance and the theoretical lateral offset distance.

[0118] In this optional embodiment, before the anchor pipe 1 is positioned and installed, a theoretical horizontal distance and a theoretical lateral offset distance can be obtained by performing a simple trigonometric function conversion based on the second preset angle and the second preset distance, thereby providing construction personnel with accurate reference values, helping to ensure that the anchor pipe 1 is installed at the position required by the design, while also reducing the time spent on the positioning and installation of the anchor pipe 1 and improving efficiency.

[0119] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A method for positioning and installing an anchor pipe, characterized in that: include: Installing the anchor pipe (1) according to the positioning point of the anchor pipe (1) and the pre-installed guide plate (3); Obtaining a first sub-midpoint (7) on the anchor pipe (1), and drawing a first sub-midline on the anchor pipe (1) according to the first sub-midpoint (7); Determining a first marking point (10) below the first dividing midpoint (7), and measuring an actual horizontal distance and an actual lateral offset distance based on the first marking point (10); The installation angle of the anchor pipe (1) is adjusted according to the actual horizontal distance and the actual lateral offset distance.

2. The anchor pipe positioning and installation method according to claim 1, characterized in that: Before installing the anchor pipe (1) according to the positioning point of the anchor pipe (1) and the pre-installed guide plate (3), the method further comprises: When the three-dimensional assembly is performed in the factory, the positioning point of the anchor pipe (1) is made on the wall plate (4) of the anchor box, and the anchor pipe (1) is pre-assembled according to the positioning point, so that the angle between the anchor pipe (1) and the longitudinal center line of the bridge is a first preset angle, wherein a part of the anchor pipe (1) is located outside the anchor box, and another part of the anchor pipe (1) passes through the wall plate (4) and is located inside the anchor box; The guide plate (3) is installed on the wall plate (4) according to the relative position of the anchor pipe (1) and the wall plate (4).

3. The anchor pipe positioning and installation method according to claim 2, characterized in that: The step of installing the guide plate (3) on the wall plate (4) according to the relative positions of the anchor pipe (1) and the wall plate (4) comprises: The guide plate (3) is installed on the inner surface of the wall plate (4) at a position a first preset distance from the anchor pipe (1).

4. The anchor pipe positioning and installation method according to claim 1, characterized in that: The anchor pipe (1) is provided with two anchor pressure plates (2) arranged opposite to each other on both sides of a preset direction, wherein the preset direction is perpendicular to the length direction of the anchor pipe (1), and the first sub-midpoint (7) on the anchor pipe (1) is obtained, comprising: The second right-angled side of the first square (5) is placed in close contact with any side of the anchor plate (2) and the first right-angled side of the first square (5) is in contact with the anchor pipe (1), and the intersection of the first right-angled side and the anchor pipe (1) is determined as the first sub-midpoint (7), wherein the first right-angled side is perpendicular to the second right-angled side, and the first right-angled side is perpendicular to the two anchor plates (2).

5. The anchor pipe positioning and installation method according to claim 4, characterized in that: Also includes: The fourth right-angled side of the second square ruler (6) is placed in close contact with any side of the anchor plate (2) and the fourth right-angled side is in contact with the anchor pipe (1), and the intersection of the fourth right-angled side and the anchor pipe (1) is determined as the third midpoint (9), wherein the second right-angled side and the fourth right-angled side are on the same straight line, the second square ruler (6) also includes a third right-angled side, the third right-angled side is perpendicular to the fourth right-angled side, and the third right-angled side and the first right-angled side are respectively located on both sides of the anchor pipe (1).

6. The anchor pipe positioning and installation method according to claim 1, characterized in that: Determining a first marking point (10) below the first sub-midpoint (7), and measuring the actual horizontal distance and the actual lateral offset distance according to the first marking point (10) include: The spacing distance is calculated according to a second preset distance and a second preset angle, and a position of the spacing distance from the first sub-midpoint (7) is determined as a second sub-midpoint (8) on the anchor pipe (1) in a direction close to the wall plate (4), and the second preset angle is determined by the first preset angle; Determine the position below the first sub-midpoint (7) that is the second preset distance from the first sub-midpoint (7) as the first marking point (10), and place a level at the first marking point (10); Using the light beam emitted by the level meter, measure the horizontal distance between the first marking point (10) and the second sub-midpoint (8) to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint (8) and the light beam to obtain the actual lateral offset distance; Wherein, the light beam is parallel to the longitudinal center line of the bridge.

7. The anchor pipe positioning and installation method according to claim 6, characterized in that: The light beam emitted by the level meter measures the horizontal distance between the first marking point (10) and the second sub-midpoint (8) to obtain the actual horizontal distance, and the lateral offset distance between the second sub-midpoint (8) and the light beam to obtain the actual lateral offset distance, including: Draw a straight line perpendicular to the light beam through the second sub-midpoint (8), wherein the straight line intersects the light beam at a second marking point (11); Measuring the distance from the first marking point (10) to the second marking point (11) to obtain the actual horizontal distance; The distance from the second sub-midpoint (8) to the second marking point (11) is measured to obtain the actual lateral offset distance.

8. The anchor pipe positioning and installation method according to claim 6, characterized in that: The value range of the second preset distance is 1400mm-1600mm.

9. The anchor pipe positioning and installation method according to claim 6, characterized in that: The step of adjusting the installation angle of the anchor pipe (1) according to the actual horizontal distance and the actual lateral offset distance comprises: Determine a first deviation according to the actual horizontal distance and the theoretical horizontal distance; Determining a second deviation according to the actual lateral offset distance and the theoretical lateral offset distance; The installation angle of the anchor pipe (1) is adjusted according to the first deviation and the second deviation.

10. The anchor pipe positioning and installation method according to claim 9, characterized in that: Also includes: A trigonometric function conversion is performed according to the second preset angle and the second preset distance to determine the theoretical horizontal distance and the theoretical lateral offset distance.

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