Method for determining construction installation parameters of a screw anchor foundation

Abstract

The application provides a method for determining construction and installation parameters of a screw anchor foundation, and relates to the technical field of power transmission engineering. The method comprises the following steps: obtaining preset installation parameters of an anchor rod and inner diameter size parameters of the anchor rod; determining outer diameter size parameters of a short steel pipe according to the preset installation parameters of the anchor rod and the inner diameter size parameters of the anchor rod; performing pre-installation processing on the anchor rod, the short steel pipe and a flange disc according to the preset installation parameters of the anchor rod, and determining initial position parameters of the flange disc after the pre-installation processing; determining position parameters of a steel bearing platform and the flange disc according to preset position parameters of an upper tower leg and the initial position parameters of the flange disc; determining third bolt holes and fourth bolt holes based on the position parameters of the steel bearing platform and the flange disc; and performing installation processing on the anchor rod, the short steel pipe, the flange disc and the steel bearing platform based on the first bolt holes, the second bolt holes, the third bolt holes and the fourth bolt holes. The scheme of the application realizes rapid installation and construction of the screw anchor foundation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission engineering, in particular to a method for determining construction and installation parameters of a screw anchor foundation. BACKGROUND

[0002] The screw anchor foundation is a kind of anchoring structure composed of a screw anchor and an upper bearing platform, which mainly utilizes deep soil to resist the force of the upper structure. During the construction of the screw anchor foundation, it is difficult to accurately control the position of the anchor rod when it 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 construction of the existing screw anchor, the anchor rod is usually connected with the steel bearing platform by on-site welding or by using a sleeve fixing method. For the on-site welding method, the space between the anchor rod and the steel bearing platform is very small, and in some places, overhead welding is required, which can only be welded from the outside, and the welding difficulty is high, the weld is difficult to weld through, the welding process requirement is high, and the welding quality is difficult to guarantee. Moreover, for the group anchor type screw anchor foundation, there are several screw anchors under each foundation, and the welding workload is huge, which further increases the welding difficulty and seriously restricts the popularization and application of the screw anchor foundation. For the sleeve fixing method, the construction steps are complicated, many devices are required to cooperate, and it is necessary to establish a model of the upper connecting part on site and then return to the factory for processing. The components cannot be transported to the site at one time, which increases the transportation cost and requires a long construction period. SUMMARY

[0003] The present application provides a method for determining the construction and installation parameters of a screw anchor foundation, which solves the problems of on-site welding, multiple required construction equipment, inability to transport all components to the site at one time, complicated construction steps, long construction period, and high construction cost of the existing screw anchor foundation.

[0004] To solve the above technical problems, the technical solutions of the present application are as follows:

[0005] The present application provides a method for determining the construction and installation parameters of a screw anchor foundation, which includes a plurality of anchor rods, a plurality of short steel pipes, a flange plate, a steel bearing platform, first bolts, and second bolts. The anchor rods are provided with a plurality of first bolt holes for connecting the first bolts, and the flange plate is provided with a plurality of second bolt holes for connecting the second bolts. The method comprises the following steps:

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

[0007] 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 pipes are determined;

[0008] According to the preset installation parameters of the anchor rod, the anchor rod, the short steel pipe, and the flange plate are pre-installed and treated, and the initial position parameters of the flange plate after the pre-installation and treatment are determined;

[0009] determining the position parameter of the steel cushion and the target position parameter of the flange plate according to the preset position parameter of the upper tower leg and the initial position parameter of the flange plate;

[0010] determining the position parameter of the third bolt hole on the short steel pipe corresponding to the first bolt hole and the position parameter of the fourth bolt hole on the steel cushion corresponding to the second bolt hole according to the position parameter of the first bolt hole and the second bolt hole based on the position parameter of the steel cushion and the target position parameter of the flange plate;

[0011] installing the anchor rod, the short steel pipe, the flange plate and the steel cushion based on the position parameter of the first bolt hole, the second bolt hole, the third bolt hole and the fourth bolt hole.

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

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

[0014] the outer diameter size parameter of the short steel pipe is determined according to the preset installation parameter of the anchor rod and the inner diameter size parameter of the anchor rod through a formula

[0015] wherein, the outer diameter size parameter of the short steel pipe is the inner diameter size parameter of the anchor rod is the preset inclination error value is the preset installation inclination angle is the preset insertion depth of the anchor rod is.

[0016] Optionally, the anchor rod, the short steel pipe and the flange plate are pre-installed according to the preset installation parameter of the anchor rod, and the initial position parameter of the flange plate after the pre-installation is determined, and includes:

[0017] the anchor rod is screwed into the soil at the preset installation inclination angle, the short steel pipe and the flange plate are inserted into the anchor rod and temporarily fixed, the flange plate is leveled, and the initial position parameter of the flange plate after leveling is determined.

[0018] Optionally, the position parameter of the steel cushion and the target position parameter of the flange plate are determined according to the preset position parameter of the upper tower leg and the position parameter of the flange plate, and include:

[0019] the steel cushion is placed on the flange plate, and the steel cushion is moved and the flange plate is lifted according to the coordinate parameter of the upper tower leg, so that the center position of the steel cushion coincides with the coordinate parameter of the upper tower leg; ​

[0020] The steel foundation and flange are leveled, and the position parameters of the steel foundation and the target position parameters of the flange are determined after leveling.

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

[0022] The steel support platform is located directly above the flange and is fixedly connected to the flange by a second bolt. The upper tower leg is located on the steel support platform.

[0023] Optionally, each of the anchor bolts is provided with a helical anchor disc.

[0024] Optionally, there are multiple spiral anchor discs, all of which are welded to each anchor rod at a preset interval along the axial direction of each anchor rod.

[0025] Optionally, stiffening ribs are provided on both sides of the connection between the flange and the short steel pipe.

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

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

[0028] The method for determining the construction installation parameters of the screw anchor foundation comprises the following steps: obtaining preset installation parameters of anchor rods and inner diameter size parameters of the anchor rods; determining outer diameter size parameters of short steel pipes according to the preset installation parameters of the anchor rods and the inner diameter size parameters of the anchor rods; performing pre-installation processing on the anchor rods, the short steel pipes and a flange plate according to the preset installation parameters of the anchor rods, and determining initial position parameters of the flange plate after the pre-installation processing; determining position parameters of a steel pile cap and target position parameters of the flange plate according to preset position parameters of an upper tower leg and the initial position parameters of the flange plate; determining position parameters of third bolt holes corresponding to the first bolt holes on the short steel pipes and position parameters of fourth bolt holes corresponding to the second bolt holes on the steel pile cap according to position parameters of the first bolt holes and the second bolt holes based on the position parameters of the steel pile cap and the target position parameters of the flange plate; and performing installation processing on the anchor rods, the short steel pipes, the flange plate and the steel pile cap based on the position parameters of the first bolt holes, the second bolt holes, the third bolt holes and the fourth bolt holes. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a flowchart of the method for determining the construction installation parameters of the screw anchor foundation of the present application;

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

[0031] Figure 3 is a structure diagram of the screw anchor foundation after the pre-installation processing on the flange plate in the method for determining the construction installation parameters of the screw anchor foundation of the present application;

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

[0033] Figure 5 is a structure diagram of a single anchor rod after assembly in the method for determining the construction installation parameters of the screw anchor foundation of the present application;

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

[0035] Figure 7 is a structural schematic view of a plurality of anchor rods after assembly in the method for determining construction installation parameters of a screw anchor foundation of the present application;

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

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 1, anchor rod; 11, first bolt hole; 2, short steel pipe; 3, flange plate; 31, second bolt hole; 4, steel pile cap; 5, first bolt; 6, second bolt; 7, upper tower leg; 8, second stiffened plate; 9, first nail. DETAILED DESCRIPTION

[0039] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0040] As Figures 1 to 8 shown, the embodiment of the present application proposes a method for determining construction installation parameters of a screw anchor foundation, the screw anchor foundation comprising a plurality of anchor rods 1, a plurality of short steel pipes 2, a flange plate 3, a steel pile cap 4, a first bolt 5 and a second bolt 6, wherein the anchor rod 1 is provided with a plurality of first bolt holes 11 connecting the first bolt 5, the flange plate 3 is provided with a plurality of second bolt holes 31 connecting the second bolt 6, and the method comprises:

[0041] Step 21, obtaining preset installation parameters of the anchor rod 1 and inner diameter size parameters of the anchor rod 1;

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

[0043] Step 23, performing 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 determining initial position parameters of the flange plate 3 after pre-installation processing;

[0044] Step 24, determining position parameters of the steel pile cap 4 and target position parameters of the flange plate 3 according to preset position parameters of the upper tower leg and the initial position parameters of the flange plate 3;

[0045] Step 25, based on the position parameters of the steel pile cap 4 and the target position parameters of the flange plate 3, the position parameters of the third bolt hole corresponding to the first bolt hole 11 on the short steel pipe 2 and the position parameters of the fourth bolt hole corresponding to the second bolt hole 31 on the steel pile cap 4 are determined according to the position parameters of the first bolt hole 11 and the second bolt hole 31;

[0046] Step 26, 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, the installation of the anchor rod 1, the short steel pipe 2, the flange plate 3 and the steel pile cap 4 is processed.

[0047] In the embodiment, the preset installation parameters include: a preset installation inclination angle of the anchor rod 1, a preset insertion depth, and a preset inclination error value; the preset inclination error value is 1-2 degrees; and step 25 specifically includes: after the target position parameters of the flange plate 3 and the position parameters of the steel pile cap 4 are determined, the preliminary assembly can be completed; after the preliminary assembly is completed, the position of the third bolt hole corresponding to the first bolt hole 11 is marked on the corresponding position of the short steel pipe 2 by using a marker such as a marker pen according to the position of the first bolt hole 11 on the anchor rod 1, and the position of the fourth bolt hole corresponding to the second bolt hole 31 is marked on the steel pile cap 4 according to the position of the second bolt hole 31 on the flange plate 3; then the short steel pipe 2 and the flange plate 3 and the steel pile cap 4 are removed, and holes are drilled on the short steel pipe 2 and the steel pile cap 4 at the marked positions by using a small electric drill; if the steel pile cap 4 is relatively thin, the steel pile cap 4 can be drilled through and then fixed by using a nut; if the steel pile cap 4 is relatively thick, the holes can be drilled and threaded, and then a bolt is screwed in for fixation; and step 26 specifically includes: the short steel pipe 2 is fixed with the anchor rod 1 by using the first bolt 5 to pass through the first bolt hole 11 and the third bolt hole, and the flange plate 3 and the steel pile cap 4 are fixed by using the second bolt 6 to pass through the second bolt hole 31 and the fourth bolt hole, so as to form a spiral anchor foundation overall structure, and construction is performed according to the installed spiral anchor foundation; in the embodiment, the method for determining the construction and installation parameters of the spiral anchor foundation is performed by determining the outer diameter size parameter of the short steel pipe 2 according to the preset installation parameters of the anchor rod 1 and the inner diameter size parameter of the anchor rod 1, and determining 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, so that the anchor rod 1, the short steel pipe 2, the flange plate 3 and other components of the spiral anchor can be directly produced and processed in a factory in advance before installation, and all the components can be transported to the site at one time for installation and debugging, thereby reducing the transportation cost and greatly shortening the construction period; meanwhile, the spiral anchor foundation structure is safe and reliable, and can be used for single-anchor and group-anchor foundations, and can effectively avoid on-site welding; the method for determining the construction and installation parameters of the spiral anchor foundation is simple to operate and requires few devices, and only a small electric drill and a marker pen are needed on the site; the spiral anchor foundation can be quickly installed and constructed, has the advantages of simple structure, fast construction and no need for on-site welding, effectively reduces the construction steps of the spiral anchor foundation, and improves the construction quality and speed of the spiral anchor foundation.

[0048] In an optional embodiment of the present application, step 22 can include:

[0049] According to the preset installation parameters of the anchor rod 1 and the inner diameter size parameter of the anchor rod 1, the outer diameter size parameter of the short steel pipe 2 is determined by using a formula

[0050] wherein, is the outer diameter size parameter of the short steel pipe 2, is the inner diameter size parameter of the anchor rod 1,​ preset inclination error value, preset installation inclination, preset insertion depth of the anchor rod 1.

[0051] In the embodiment, the short steel pipe 2 can 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 size. After the size parameter of the outer diameter of the short steel pipe 2 is determined, other size parameters of the short steel pipe 2 can be set according to requirements.

[0052] In an optional embodiment of the present application, step 23 can include:

[0053] The anchor rod 1 is screwed into the soil at the preset installation inclination, 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, and the initial position parameter of the flange plate 3 after leveling is determined.

[0054] In the embodiment, when leveling the flange plate 3, a positioning instrument such as a laser line projector can be used for assistance, and the flange plate 3 must be kept horizontal and coplanar to be attached to the upper steel pile cap 4; when there are multiple flange plates 3 in the group anchor foundation, it is necessary to ensure that each flange plate 3 is horizontal and coplanar.

[0055] In an optional embodiment of the present application, step 24 can include:

[0056] The steel pile cap 4 is placed on the flange plate 3, and the steel pile cap 4 is moved and the flange plate 3 is raised according to the coordinate parameters of the upper tower leg, so that the center position of the steel pile cap 4 coincides with the coordinate parameters of the upper tower leg, and the steel pile cap 4 and the flange plate 3 are leveled, and the position parameter of the steel pile cap 4 and the target position parameter of the flange plate 3 are determined after leveling.

[0057] In the embodiment, when the installation position coordinate point of the bottom of the upper tower leg is (0, 0, 0), the steel pile cap 4 is first placed on the flange plate 3, then the steel pile cap 4 is moved and the flange plate 3 is raised according to the coordinate point of the upper tower leg, so that the center point position of the steel pile cap is also located at the coordinate point (0, 0, 0), then a positioning instrument such as a laser line projector is used for assistance, the steel pile cap 4 and the flange plate 3 are leveled, and the position parameter of the steel pile cap 4 and the target position parameter of the flange plate 3 are determined after leveling; during use, the size of the steel pile cap 4 satisfies the shear bearing capacity and impact cutting calculation, and the edge of the steel pile cap 4 is set to be more than 10 cm away from the edge of the flange plate.

[0058] In an optional embodiment of the present application, one end of the short steel pipe 2 is welded at the bottom of the flange plate 3 at a 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 with the flange plate 3 through the second bolt 6, and the upper tower leg is arranged on the steel bearing platform 4.

[0060] In the 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 optional embodiment of the present application, a spiral anchor plate is arranged on each anchor rod 1.

[0062] In an optional embodiment of the present application, the spiral anchor plates are multiple and are welded to the anchor rods 1 in the axial direction of the anchor rods 1 through a preset interval.

[0063] In an optional embodiment of the present application, stiffening rib plates are arranged on both sides of the connection between the flange plate 3 and the short steel pipe 2, for increasing the connection strength.

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

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

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

[0067] First, the anchor rod 1, the short steel pipe 2, the flange plate 3, the steel bearing platform 4, the first bolt 5, the second bolt 6 and other components of the spiral anchor are produced and processed in a factory, and all the components are transported to the site at one time; then the anchor rod 1 is screwed into the soil at a 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 in the group anchor foundation, it is necessary to ensure that all the flange plates 3 are horizontal and in the same plane; the size and position of the steel bearing platform 4 are determined according to the design requirements of the upper tower leg, the steel bearing platform 4 is placed on the flange plate 3, and the steel bearing platform 4 and the flange plate 3 are leveled again; the overlapping position of the short steel pipe 2, the steel bearing platform 4 and the bolt hole at this time is marked by a marker pen or the like, the short steel pipe 2 and the flange plate 3, the steel bearing platform 4 are removed, a small electric drill is used to drill holes at the marked position of the short steel pipe 2 and the steel bearing platform 4 on site, if the steel bearing platform 4 is relatively thin, the steel bearing platform 4 can be drilled through and then fixed using a nut; if the steel bearing platform is relatively thick, a hole can be drilled and tapped, and then a bolt is screwed in for fixation; all the steel components are galvanized for corrosion protection, the first bolt 5 and the second bolt 6 are used to fix the short steel pipe 2 and the steel bearing platform 4 respectively, the opening at the upper end of the anchor rod 1 is filled with building materials, and the construction of the spiral anchor foundation on site is completed.

[0068] The construction method of the screw anchor foundation can install the screw anchor foundation on site by drilling, all components of the screw anchor foundation can be transported to the site at one time, required mechanical equipment is little, construction is simple and easy to implement, the structure is safe and reliable, single anchor and group anchor foundation can be used, on-site welding can be effectively avoided, transportation cost is reduced, and construction period is greatly shortened.

[0069] The above is the preferred embodiment of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered within the scope of protection of the present application.

Claims

1. A method of determining installation parameters for a screw anchor foundation, characterized in that The spiral anchor foundation comprises a plurality of anchor rods (1), a plurality of short steel pipes (2), a flange plate (3), a steel pile cap (4), first bolts (5) and second bolts (6), wherein the anchor rod (1) is provided with a plurality of first bolt holes (11) connected with the first bolts (5), the flange plate (3) is provided with a plurality of second bolt holes (31) connected with the second bolts (6), and the method comprises the following steps: obtaining preset installation parameters of the anchor rod (1) and inner diameter size parameters of the anchor rod (1); determining outer diameter size parameters of the short steel pipe (2) according to the preset installation parameters of the anchor rod (1) and the inner diameter size parameters of the anchor rod (1); according to the preset installation parameters of the anchor rod (1), pre-installing the anchor rod (1), the short steel pipe (2) and the flange plate (3), and determining initial position parameters of the flange plate (3) after the pre-installation; determining position parameters of the steel pile cap (4) and 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 pile cap (4) and the target position parameters of the flange plate (3), and according to the position parameters of the first bolt hole (11) and the second bolt hole (31), determining position parameters of a third bolt hole corresponding to the first bolt hole (11) on the short steel pipe (2) and position parameters of a fourth bolt hole corresponding to the second bolt hole (31) on the steel pile cap (4); specifically, based on the position parameters of the steel pile cap (4) and the target position parameters of the flange plate (3), preliminary assembly is completed, after the preliminary assembly, by using a marker pen, a position of the third bolt hole corresponding to the first bolt hole (11) is marked on the short steel pipe (2) according to a position of the first bolt hole (11) on the anchor rod (1); a position of the fourth bolt hole corresponding to the second bolt hole (31) is marked on the steel pile cap (4) according to a position of the second bolt hole (31) on the flange plate (3), the short steel pipe (2), the flange plate (3) and the steel pile cap (4) are removed, and holes are drilled on the short steel pipe (2) and the steel pile cap (4) at the marked positions by using a small electric drilling machine; 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, the anchor rod (1), the short steel pipe (2), the flange plate (3) and the steel pile cap (4) are installed; wherein the preset installation parameters comprise a preset installation inclination angle of the anchor rod (1), a preset insertion depth and a preset inclination error value; determining the outer diameter size parameters of the short steel pipe (2) according to the preset installation parameters of the anchor rod (1) and the inner diameter size parameters of the anchor rod (1), comprises: According to the preset installation parameters of the anchor rod (1) and the inner diameter size parameters of the anchor rod (1), the outer diameter size parameters of the short steel pipe (2) are determined through a formula . wherein, is an outer diameter dimension parameter of the short steel pipe (2), is an inner diameter dimension parameter of the anchor rod (1), is a preset inclination error value, is a preset installation inclination, is a preset insertion depth of the anchor rod (1); according to the preset installation parameters of the anchor rod (1), pre-installing the anchor rod (1), the short steel pipe (2) and the flange plate (3), and determining initial position parameters of the flange plate (3) after the pre-installation, comprises: The anchor rod (1) is screwed into the earth at a preset installation 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, and the initial position parameter of the flange plate (3) after leveling is determined; According to the preset position parameter of the upper tower leg and the initial position parameter of the flange plate (3), the position parameter of the steel cushion cap (4) and the target position parameter of the flange plate (3) are determined, which comprises: The steel cushion cap (4) is placed on the flange plate (3), and the steel cushion cap (4) is moved and the flange plate (3) is lifted according to the coordinate parameter of the upper tower leg, so that the center position of the steel cushion cap (4) coincides with the coordinate parameter of the upper tower leg; the steel cushion cap (4) and the flange plate (3) are leveled, and the position parameter of the steel cushion cap (4) and the target position parameter of the flange plate (3) are determined after leveling; specifically, when the installation position coordinate point of the bottom of the upper tower leg is the origin, the steel cushion cap (4) is placed on the flange plate (3), the steel cushion cap (4) is moved and the flange plate (3) is lifted according to the coordinate point of the upper tower leg, so that the center point position of the steel cushion cap (4) is located at the coordinate point origin, and the leveling of the steel cushion cap (4) and the flange plate (3) is assisted by a laser projection instrument positioning instrument, and the position parameter of the steel cushion cap (4) and the target position parameter of the flange plate (3) are determined after leveling.

2. A method of determining installation parameters for a screw anchor foundation according to claim 1, characterized in that One end of the short steel pipe (2) is welded at the bottom of the flange plate (3) at a preset installation inclination angle, and the other end is arranged in the anchor rod (1) and fixed by the first bolt (5). The steel cushion cap (4) is arranged above the flange plate (3) and fixedly connected with the flange plate (3) through the second bolt (6), and the upper tower leg is arranged on the steel cushion cap (4).

3. The method of determining installation parameters for a screw anchor foundation according to claim 1, characterized in that Each anchor rod (1) is provided with a spiral anchor plate.

4. A method of determining installation parameters for a screw anchor foundation according to claim 3, characterized in that The spiral anchor plates are a plurality of plates and are welded to the anchor rods (1) through a preset interval along the axial direction of the anchor rods (1).

5. The method of determining installation parameters for a screw anchor foundation according to claim 1, characterized in that The flange plate (3) and the short steel pipe (2) are provided with stiffening rib plates on both sides of the connection.

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

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