Method for determining construction and installation parameters of spiral anchor foundation

Abstract

The invention provides a method for determining construction and installation parameters of a spiral anchor foundation, and relates to the technical field of power transmission engineering. The method comprises the steps that preset installation parameters of the anchor rod and inner diameter size parameters of the anchor rod are obtained; according to the preset installation parameters of the anchor rod and the inner diameter size parameters of the anchor rod, the outer diameter size parameters of the short steel pipe are determined; according to the preset mounting parameters of the anchor rod, the anchor rod, the short steel pipe and the flange plate are pre-mounted, and the initial position parameters of the flange plate after pre-mounting treatment are determined; according to the preset position parameter of the upper tower leg and the initial position parameter of the flange plate, position parameters of the steel bearing platform and the flange plate are determined; determining a third bolt hole and a fourth bolt hole based on the position parameters of the steel bearing platform and the flange plate; and based on the first bolt hole, the second bolt hole, the third bolt hole and the fourth bolt hole, the anchor rod, the short steel pipe, the flange plate and the steel bearing platform are installed. According to the scheme, rapid installation and construction of the spiral anchor foundation are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission engineering, and particularly to a method for determining construction and installation parameters of a screw anchor foundation. Background Art

[0002] A screw anchor foundation is an anchoring structure composed of components such as screw anchors and upper bearing platforms, mainly using deep soil to resist the acting force of the upper structure. During the construction process of a screw anchor foundation, it is very difficult to precisely control the position where the anchor rod is screwed into the soil. After being driven into the soil, there is often a certain deviation between the actual position and the designed position. Therefore, during the existing screw anchor construction, the method of connecting the anchor rod and the steel bearing platform by on-site welding or using a casing for fixation is often adopted. For the on-site welding method, there is a very small space between the anchor rod and the steel bearing platform, and in some places, overhead welding is required, and it can only be welded from the outside. The welding difficulty is relatively large, it is difficult to penetrate the weld, the requirements for the welding process are relatively high, and the welding quality is difficult to guarantee. Moreover, for a group-anchor type screw anchor foundation, there are several screw anchors under each foundation, and the welding workload is huge, further increasing the welding difficulty, seriously restricting the popularization and application of the screw anchor foundation. For the method of using a casing for fixation during construction, the construction steps are cumbersome, requiring a lot of equipment to cooperate, and it is necessary to establish a model of the upper connecting piece on-site and then return to the factory for processing. Each component cannot be transported to the site at one time, which not only increases the transportation cost but also requires a longer construction period. Summary of the Invention

[0003] The present invention provides a method for determining construction and installation parameters of a screw anchor foundation, which solves the problems of on-site welding required for the existing screw anchor foundation, a large number of construction equipment required, the components cannot be transported to the site at one time, cumbersome construction steps, long construction period, and high construction cost.

[0004] To solve the above technical problems, the technical solution of the present invention is as follows:

[0005] The present invention provides a method for determining construction and installation parameters of a screw anchor foundation. The screw anchor foundation includes a plurality of anchor rods, a plurality of short steel pipes, a flange plate, a steel bearing platform, a first bolt, and a second bolt. Among them, a plurality of first bolt holes for connecting the first bolt are provided on the anchor rod, and a plurality of second bolt holes for connecting the second bolt are provided on the flange plate. The method includes:

[0006] Obtain the preset installation parameters of the anchor rod and the inner diameter size parameter of the anchor rod;

[0007] Determine the outer diameter size parameter of the short steel pipe according to the preset installation parameters of the anchor rod and the inner diameter size parameter of the anchor rod;

[0008] Perform pre-installation treatment on the anchor rod, the short steel pipe, and the flange plate according to the preset installation parameters of the anchor rod, and determine the initial position parameter of the flange plate after the pre-installation treatment;

[0009] Determine the position parameters of the steel bearing platform and the target position parameters of the flange according to the preset position parameters of the upper tower leg and the initial position parameters of the flange.

[0010] Based on the position parameters of the steel bearing platform and the target position parameters of the flange, determine the position parameters of the third bolt hole corresponding to the first bolt hole on the short steel pipe and the position parameters of the fourth bolt hole corresponding to the second bolt hole on the steel bearing platform according to the position parameters of the first bolt hole and the second bolt hole.

[0011] Based on the position parameters of the first bolt hole, the second bolt hole, the third bolt hole and the fourth bolt hole, install and process the anchor rod, the short steel pipe, the flange and the steel bearing platform.

[0012] Optionally, the preset installation parameters include: the preset installation inclination angle of the anchor rod, the preset insertion depth and the preset inclination error value.

[0013] Optionally, determine the outer diameter size parameter of the short steel pipe according to the preset installation parameter of the anchor rod and the inner diameter size parameter of the anchor rod, including:

[0014] According to the preset installation parameter of the anchor rod and the inner diameter size parameter of the anchor rod, through the formula Determine the outer diameter size parameter of the short steel pipe;

[0015] where d1 is the outer diameter size parameter of the short steel pipe, D2 is the inner diameter size parameter of the anchor rod, △θ is the preset inclination error value, θ is the preset installation inclination angle, and L is the preset insertion depth of the anchor rod.

[0016] Optionally, according to the preset installation parameter of the anchor rod, pre-install the anchor rod, the short steel pipe and the flange, and determine the initial position parameters of the flange after the pre-installation, including:

[0017] Screw the anchor rod into the soil at the preset installation inclination angle, insert the short steel pipe and the flange into the anchor rod and fix them temporarily, level the flange, and determine the initial position parameters of the flange after leveling.

[0018] Optionally, determine the position parameters of the steel bearing platform and the target position parameters of the flange according to the preset position parameters of the upper tower leg and the position parameters of the flange, including:

[0019] Place the steel bearing platform on the flange, and move the steel bearing platform and raise the flange according to the coordinate parameters of the upper tower leg, so that the center position of the steel bearing platform coincides with the coordinate parameters of the upper tower leg;

[0020] Level the steel bearing platform and the flange plate, and determine the position parameters of the steel bearing platform and the target position parameters of the flange plate after leveling.

[0021] Optionally, one end of the short steel pipe is welded to the bottom of the flange plate at a preset installation inclination angle, and the other end is arranged inside the anchor rod and fixed by a first bolt;

[0022] The steel bearing platform is arranged directly above the flange plate and is fixedly connected to the flange plate through a second bolt, and the upper tower leg is arranged on the steel bearing platform.

[0023] Optionally, a spiral anchor plate is arranged on each anchor rod.

[0024] Optionally, there are multiple spiral anchor plates, and all of them are welded to each anchor rod at a preset spacing along the axial direction of each anchor rod.

[0025] Optionally, stiffening rib plates are arranged on both sides of the connection between the flange plate and the short steel pipe.

[0026] Optionally, the first bolt holes can be orthogonally arranged on the anchor rod.

[0027] The above solution of the present invention has at least the following beneficial effects:

[0028] The method for determining the construction and installation parameters of the spiral anchor foundation according to the present invention, the spiral anchor foundation includes a plurality of anchor rods, a plurality of short steel pipes, a flange plate, a steel bearing platform, a first bolt and a second bolt. Among them, a plurality of first bolt holes for connecting the first bolt are arranged on the anchor rod, and a plurality of second bolt holes for connecting the second bolt are arranged on the flange plate. The method includes: obtaining the preset installation parameters of the anchor rod and the inner diameter dimension parameters of the anchor rod; determining the outer diameter dimension parameters of the short steel pipe according to the preset installation parameters of the anchor rod and the inner diameter dimension parameters of the anchor rod; pre-installing the anchor rod, the short steel pipe and the flange plate according to the preset installation parameters of the anchor rod, and determining the initial position parameters of the flange plate after the pre-installation; determining the position parameters of the steel bearing platform and the target position parameters of the flange plate according to the preset position parameters of the upper tower leg and the initial position parameters of the flange plate; based on the position parameters of the steel bearing platform and the target position parameters of the flange plate, determining the position parameters of the third bolt holes corresponding to the first bolt holes on the short steel pipe and the position parameters of the fourth bolt holes corresponding to the second bolt holes on the steel bearing platform according to the position parameters of the first bolt holes and the second bolt holes; installing the anchor rod, the short steel pipe, the flange plate and the steel bearing platform based on the position parameters of the first bolt holes, the second bolt holes, the third bolt holes and the fourth bolt holes. The solution of the present invention realizes the rapid installation and construction of the spiral anchor foundation, and has the advantages of simple structure, fast construction and no on-site welding, effectively reducing the construction steps of the spiral anchor foundation and improving the construction quality and construction speed of the spiral anchor foundation. Brief Description of the Drawings

[0029] Figure 1 is a schematic flow chart of a method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0030] Figure 2 is a schematic diagram of the partial structure of the anchor rod in the method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0031] Figure 3 is a schematic diagram of the structure of the screw anchor foundation after pre-installation treatment of the flange in the method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0032] Figure 4 is a schematic diagram of the structure of the screw anchor foundation after determining the third bolt hole and the fourth bolt hole in the method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0033] Figure 5 is a schematic diagram of the structure of a single assembled anchor rod in the method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0034] Figure 6 is Figure 5 a cross-sectional view taken at A - A;

[0035] Figure 7 is a schematic diagram of the structure of multiple assembled anchor rods in the method for determining construction and installation parameters of the screw anchor foundation of the present invention;

[0036] Figure 8 is Figure 7 a cross-sectional view taken at B - B.

[0037] Description of the Reference Numerals:

[0038] 1. Anchor rod; 11. First bolt hole; 2. Short steel pipe; 3. Flange; 31. Second bolt hole; 4. Steel bearing platform; 5. First bolt; 6. Second bolt; 7. Upper tower leg; 8. Second stiffening rib plate; 9. First through bolt. Detailed Description of the Invention

[0039] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0040] As Figures 1 to 8As shown in the figure, an embodiment of the present invention provides a method for determining construction and installation parameters of a screw anchor foundation. The screw anchor foundation includes a plurality of anchor rods 1, a plurality of short steel pipes 2, a flange 3, a steel bearing platform 4, a first bolt 5, and a second bolt 6. Among them, a plurality of first bolt holes 11 for connecting the first bolt 5 are provided on the anchor rod 1, and a plurality of second bolt holes 31 for connecting the second bolt 6 are provided on the flange 3. The method includes:

[0041] Step 21: Obtain the preset installation parameters of the anchor rod 1 and the inner diameter dimension parameters of the anchor rod 1;

[0042] Step 22: Determine the outer diameter dimension parameters of the short steel pipe 2 according to the preset installation parameters of the anchor rod 1 and the inner diameter dimension parameters of the anchor rod 1;

[0043] Step 23: Perform pre-installation treatment on the anchor rod 1, the short steel pipe 2, and the flange 3 according to the preset installation parameters of the anchor rod 1, and determine the initial position parameters of the flange 3 after the pre-installation treatment;

[0044] Step 24: Determine the position parameters of the steel bearing platform 4 and the target position parameters of the flange 3 according to the preset position parameters of the upper tower leg and the initial position parameters of the flange 3;

[0045] Step 25: Based on the position parameters of the steel bearing platform 4 and the target position parameters of the flange 3, determine the position parameters of the third bolt holes on the short steel pipe 2 corresponding to the first bolt holes 11 and the position parameters of the fourth bolt holes on the steel bearing platform 4 corresponding to the second bolt holes 31 according to the position parameters of the first bolt holes 11 and the second bolt holes 31;

[0046] Step 26: Perform installation treatment on the anchor rod 1, the short steel pipe 2, the flange 3, and the steel bearing platform 4 based on the position parameters of the first bolt holes 11, the second bolt holes 31, the third bolt holes, and the fourth bolt holes.

[0047] In this embodiment, the preset installation parameters include: the preset installation inclination angle of the anchor rod 1, the preset insertion depth, and the preset inclination error value; the preset inclination error value is 1 degree to 2 degrees; Step 25 is specifically as follows. After the target position parameters of the flange 3 and the position parameters of the steel bearing platform 4 are determined, the preliminary assembly can be completed. After the preliminary assembly is completed, by means of marking such as a marker pen, according to the position of the first bolt hole 11 on the anchor rod 1, mark the position of the third bolt hole corresponding to the first bolt hole 11 at the corresponding position on the short steel pipe 2. Similarly, according to the position of the second bolt hole 31 on the flange 3, mark the position of the fourth bolt hole corresponding to the second bolt hole 31 on the steel bearing platform 3. Then remove the short steel pipe 2, the flange 3, and the steel bearing platform 4, and use a small electric drill to drill holes on the marked positions of the short steel pipe 3 and the steel bearing platform 4 on site. If the steel bearing platform 3 is relatively thin, the steel bearing platform 3 can be drilled through and fixed with nuts; if the steel bearing platform 4 is relatively thick, holes can be drilled and tapped and then bolts can be screwed in for fixation; Step 26 is specifically as follows. Fix the short steel pipe 2 and the anchor rod 1 by passing the first bolt 5 through the first bolt hole 11 and the third bolt hole, and fix the flange 3 and the steel bearing platform 4 by passing the second bolt 6 through the second bolt hole 31 and the fourth bolt hole to install the overall structure of the screw anchor foundation, and carry out construction according to the installed screw anchor foundation; in this embodiment, the method for determining the construction and installation parameters of the screw anchor foundation can determine the outer diameter dimension parameter of the short steel pipe 2 according to the preset installation parameter of the anchor rod 1 and the inner diameter dimension parameter of the anchor rod 1, and determine the design of the third bolt hole and the fourth bolt hole according to the first bolt hole 11 and the second bolt hole 31, which can realize that before installation, the components such as the anchor rod 1, the short steel pipe 2, and the flange 3 that make up the screw anchor can be directly produced and processed in the factory in advance, and each component can be transported to the site at one time for installation and debugging, which can reduce the transportation cost and greatly shorten the construction period; at the same time, the screw anchor foundation structure is safe and reliable, and both single-anchor and group-anchor foundations can be used, which can effectively avoid on-site welding; the method for determining the construction and installation parameters of the screw anchor foundation is simple to operate and requires very few equipment, and only a small electric drill and a marker pen are needed on site to implement; it realizes the rapid installation and construction of the screw anchor foundation, and has the advantages of simple structure, fast construction, and no on-site welding, effectively reducing the construction steps of the screw anchor foundation and improving the construction quality and construction speed of the screw anchor foundation.

[0048] In an alternative embodiment of the present invention, Step 22 may include:

[0049] According to the preset installation parameter of the anchor rod 1 and the inner diameter dimension parameter of the anchor rod 1, through the formula Determine the outer diameter dimension parameter of the short steel pipe 2;

[0050] Wherein, d1 is the outer diameter dimension parameter of the short steel pipe 2, D2 is the inner diameter dimension parameter of the anchor rod 1, △θ is the preset inclination error value, θ is the preset installation inclination, and L is the preset insertion depth of the anchor rod 1.

[0051] In this embodiment, the short steel pipe 2 needs to be inserted into the anchor rod 1, and the outer diameter of the short steel pipe 2 is smaller than the inner diameter of the anchor rod 1 by a certain dimension. After the outer diameter dimension parameter of the short steel pipe 2 is determined, other dimension parameters of the short steel pipe 2 can be set according to requirements.

[0052] In an alternative embodiment of the present invention, step 23 may include:

[0053] Screw the anchor rod 1 into the soil at the preset installation inclination, insert the short steel pipe 2 and the flange 3 into the anchor rod 1 and temporarily fix them, level the flange 3, and determine the initial position parameters after the flange 3 is leveled.

[0054] In this embodiment, when leveling the flange 3, positioning instruments such as a laser alignment instrument can be used for assistance. It is necessary to keep the flange 3 horizontal and in the same plane so as to fit with the upper steel bearing platform 3; when there are multiple flanges 3 for the group anchor foundation, it is necessary to ensure that each flange 3 is horizontal and in the same plane.

[0055] In an alternative embodiment of the present invention, step 24 may include:

[0056] Place the steel bearing platform 4 on the flange 3, and move the steel bearing platform 4 and raise the flange 3 according to the coordinate parameters of the upper tower leg, so that the center position of the steel bearing platform 4 coincides with the coordinate parameters of the upper tower leg, and level the steel bearing platform 4 and the flange 3. After leveling, determine the position parameters of the steel bearing platform 4 and the target position parameters of the flange 3.

[0057] In this embodiment, step 24 is specifically that when the installation position coordinate point at the bottom of the upper tower leg is (0, 0, 0), first place the steel bearing platform 4 on the flange 3, then move the steel bearing platform 4 and raise the flange 3 according to the upper tower leg coordinate point, so that the center point position of the steel bearing platform is also located at the coordinate point (0, 0, 0), and then use positioning instruments such as a laser alignment instrument for assistance to level the steel bearing platform 4 and the flange 3. After leveling, determine the position parameters of the steel bearing platform 4 and the target position parameters of the flange 3; during use, the size of the steel bearing platform 4 is to meet the shear bearing capacity and punching shear check, and the edge of the steel bearing platform 4 should be set more than 10 cm away from the edge of the flange.

[0058] In an alternative embodiment of the present invention, one end of the short steel pipe 2 is welded to the bottom of the flange 3 at the preset installation inclination, and the other end is arranged in the anchor rod 1 and fixed by the first bolt 5;

[0059] The steel bearing platform 4 is arranged directly above the flange plate 3 and is fixedly connected to the flange plate 3 through the second bolt 6. The upper tower leg is arranged on the steel bearing platform 4.

[0060] In this embodiment, the inclination angle of the short steel pipe 2 is the same as the preset installation inclination angle of the anchor rod 1.

[0061] In an alternative embodiment of the present invention, a spiral anchor plate is provided on each of the anchor rods 1.

[0062] In an alternative embodiment of the present invention, there are multiple spiral anchor plates, and they are all welded to the respective anchor rods 1 at a preset spacing along the axial direction of each anchor rod 1.

[0063] In an alternative embodiment of the present invention, stiffening rib plates are provided on both sides of the connection between the flange plate 3 and the short steel pipe 2 to increase the connection strength.

[0064] In an alternative embodiment of the present invention, the first bolt holes 11 can be orthogonally arranged on the anchor rod 1 to prevent relative sliding between the short steel pipe 2 and the anchor rod 1.

[0065] In an alternative embodiment of the present invention, after the installation is completed, to prevent water from entering the open upper end of the anchor rod 1, the opening can be filled with building materials, and the building materials can be materials such as sand and gravel waste.

[0066] The specific construction process of the method for determining the construction and installation parameters of the spiral anchor foundation of the present invention is as follows:

[0067] First, components such as the anchor rod 1, short steel pipe 2, flange plate 3, steel bearing platform 4, first bolt 5, second bolt 6, etc. that make up the spiral anchor are produced and processed in the factory, and all components are transported to the site at one time; then the anchor rod 1 is screwed into the soil according to the designed inclination angle, the short steel pipe 2 and the flange plate 3 are inserted into the anchor rod 1 and temporarily fixed, the flange plate 3 is leveled. When there are multiple flange plates 3 for the group anchor foundation, it is necessary to ensure that each flange plate 3 is horizontal and in the same plane; according to the design requirements of the upper tower leg, determine the size and position of the steel bearing platform 4, place the steel bearing platform 4 on the flange plate 3, and level the steel bearing platform 4 and the flange plate 3 again; use a marker pen or other means to mark the coincidence points of the short steel pipe 2, steel bearing platform 3 and bolt holes at this time, remove the short steel pipe 2, flange plate 3, and steel bearing platform 4, and use a small electric drill to drill holes on the marked positions of the short steel pipe 3 and the steel bearing platform 4 on site. If the steel bearing platform 3 is relatively thin, the steel bearing platform 3 can be drilled through and fixed with nuts; if the steel bearing platform is relatively thick, it can be drilled and tapped and then bolts are screwed in for fixation; apply a galvanized layer for anti-corrosion to all steel components, use the first bolt 5 and the second bolt 6 to fix the short steel pipe 3 and the steel bearing platform 4 respectively, and use building materials to fill the open upper end of the anchor rod 1 to complete the construction of the spiral anchor foundation for on-site drilling installation.

[0068] The construction method of the spiral anchor foundation described in the present invention can be used to install the spiral anchor foundation by on-site drilling. All components of the spiral anchor foundation can be transported to the site at one time, with very few required mechanical equipment. The construction is simple and easy to implement, the structure is safe and reliable, and both single-anchor and group-anchor foundations can be used. It can effectively avoid on-site welding, reduce transportation costs, and greatly shorten the construction period.

[0069] The above is the preferred implementation mode of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for determining the construction and installation parameters of a screw anchor foundation, characterized in that The screw anchor foundation includes a plurality of anchor rods (1), a plurality of short steel pipes (2), a flange plate (3), a steel bearing platform (4), a first bolt (5), and a second bolt (6). Among them, a plurality of first bolt holes (11) for connecting the first bolt (5) are provided on the anchor rod (1), and a plurality of second bolt holes (31) for connecting the second bolt (6) are provided on the flange plate (3). The method includes: Obtain the preset installation parameters of the anchor rod (1) and the inner diameter dimension parameters of the anchor rod (1); Determine the outer diameter dimension parameters of the short steel pipe (2) according to the preset installation parameters of the anchor rod (1) and the inner diameter dimension parameters of the anchor rod (1); Perform pre-installation processing on the anchor rod (1), the short steel pipe (2), and the flange plate (3) according to the preset installation parameters of the anchor rod (1), and determine the initial position parameters of the flange plate (3) after the pre-installation processing; Determine the position parameters of the steel bearing platform (4) and the target position parameters of the flange plate (3) according to the preset position parameters of the upper tower leg and the initial position parameters of the flange plate (3); Based on the position parameters of the steel bearing platform (4) and the target position parameters of the flange plate (3), determine the position parameters of the third bolt hole on the short steel pipe (2) corresponding to the first bolt hole (11) and the position parameters of the fourth bolt hole on the steel bearing platform (4) corresponding to the second bolt hole (31) according to the position parameters of the first bolt hole (11) and the second bolt hole (31); Perform installation processing on the anchor rod (1), the short steel pipe (2), the flange plate (3), and the steel bearing platform (4) based on the position parameters of the first bolt hole (11), the second bolt hole (31), the third bolt hole, and the fourth bolt hole; 2. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that, The preset installation parameters include: the preset installation inclination angle of the anchor rod (1), the preset insertion depth, and the preset inclination error value; 3. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 2, characterized in that, Determine the outer diameter dimension parameters of the short steel pipe (2) according to the preset installation parameters of the anchor rod (1) and the inner diameter dimension parameters of the anchor rod (1), including: According to the preset installation parameters of the anchor rod (1) and the inner diameter dimension parameters of the anchor rod (1), through the formula determine the outer diameter dimension parameters of the short steel pipe (2); Wherein, d1 is the outer diameter dimension parameter of the short steel pipe (2), D2 is the inner diameter dimension parameter of the anchor rod (1), △θ is the preset inclination error value, θ is the preset installation inclination angle, and L is the preset insertion depth of the anchor rod (1); 4. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that Perform pre-installation processing on the anchor rod (1), the short steel pipe (2), and the flange plate (3) according to the preset installation parameters of the anchor rod (1), and determine the initial position parameters of the flange plate (3) after the pre-installation processing, including: Screw the anchor rod (1) into the soil at the preset installation inclination angle, insert the short steel pipe (2) and the flange plate (3) into the anchor rod (1) and temporarily fix them, level the flange plate (3), and determine the initial position parameters of the flange plate (3) after leveling; 5. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that Determine the position parameters of the steel bearing platform (4) and the target position parameters of the flange plate (3) according to the preset position parameters of the upper tower leg and the initial position parameters of the flange plate (3), including: Place the steel bearing platform (4) on the flange plate (3), and move the steel bearing platform (4) and raise the flange plate (3) according to the coordinate parameters of the upper tower leg so that the center position of the steel bearing platform (4) coincides with the coordinate parameters of the upper tower leg; Level the steel bearing platform (4) and the flange plate (3), and determine the position parameters of the steel bearing platform (4) and the target position parameters of the flange plate (3) after leveling.

6. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, wherein One end of the short steel pipe (2) is welded to the bottom of the flange plate (3) at a preset installation inclination angle, and the other end is arranged inside the anchor rod (1) and fixed by the first bolt (5); The steel bearing platform (4) is arranged directly above the flange plate (3) and is fixedly connected to the flange plate (3) by the second bolt (6), and the upper tower leg is arranged on the steel bearing platform (4).

7. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that, A spiral anchor plate is arranged on each of the anchor rods (1).

8. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 7, characterized in that, There are multiple spiral anchor plates, and they are all welded to the respective anchor rods (1) at a preset spacing along the axial direction of each anchor rod (1).

9. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that, Stiffening ribs are arranged on both sides of the connection between the flange plate (3) and the short steel pipe (2).

10. The method for determining the construction and installation parameters of the screw anchor foundation according to claim 1, characterized in that, The first bolt holes (11) can be arranged orthogonally on the anchor rod (1).

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