CN220414306U

CN220414306U - Screw anchor foundation

Info

Publication number: CN220414306U
Application number: CN202321447020.4U
Authority: CN
Inventors: 王玉杰; 申俊三; 殷向辉; 侯森超; 翟建峰; 陈军帅; 刘欢; 赵林航; 杨志伟; 刘国枫
Original assignee: Henan Dingli Pole Tower Co ltd
Current assignee: Henan Dingli Pole Tower Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-01-30
Anticipated expiration: 2033-06-08

Abstract

The utility model provides a spiral anchor foundation, which comprises a spiral anchor group buried in four corners of a tower core, wherein the spiral anchor group comprises square bearing platform connecting plates, one diagonal line of each bearing platform connecting plate is arranged along the line direction, the other diagonal line is perpendicular to the line direction, inclined first spiral anchor rods are arranged at two corners of each bearing platform connecting plate, which are close to the tower core, respectively, inclined second spiral anchor rods are arranged at the remaining two corners, and the outward inclined angle of each second spiral anchor rod is larger than that of each first spiral anchor rod. According to the utility model, through the orientation of the bearing platform connecting plate and the arrangement of the four spiral anchor rods, the bearing capacity of the spiral anchor foundation is improved, and the stability of the structure is ensured.

Description

Screw anchor foundation

Technical Field

The utility model relates to the technical field of screw anchors, in particular to a screw anchor foundation.

Background

The spiral anchor foundation generally comprises a spiral anchor rod, a connecting plate and a bearing platform, wherein the spiral anchor rod is screwed into the ground, the bearing platform is connected with the top of the spiral anchor rod through the connecting plate, and a transmission line iron tower is connected with the bearing platform. The single inclined screw anchor foundation is mainly suitable for the conditions of small precession foundation acting force and good geological conditions, and for the conditions of large precession foundation acting force and poor geological conditions, screw anchor groups are suitable to be adopted, and how to arrange screw anchors and how to arrange the structures of the screw anchors can obtain higher bearing capacity, so that the stability of the structures is ensured, and the problem to be solved is solved. In addition, the existing screw bolt is generally in an integral rod-shaped structure, and the length of the screw bolt is inconvenient to adjust according to the requirement.

Disclosure of Invention

According to the screw anchor foundation, the bearing capacity of the screw anchor foundation is improved and the stability of the structure is ensured through the orientation of the bearing platform connecting plate and the arrangement of the four screw anchor rods.

The technical scheme of the utility model is realized as follows: the utility model provides a spiral anchor basis, includes the spiral anchor crowd of burying in tower heart four corners, and the spiral anchor crowd includes square cushion cap connecting plate, and a diagonal of cushion cap connecting plate sets up along the line direction, and another diagonal is perpendicular with the line direction, and the cushion cap connecting plate is close to the first spiral stock of slope all to be provided with in two angles departments of tower heart, and remaining two angles department all is provided with the second spiral stock of slope, and the angle of second spiral stock outside slope is greater than the angle of first spiral stock outside slope.

Further, the first spiral anchor rod and the second spiral anchor rod comprise a guide section and a plurality of rod cap sections which are connected coaxially, a spiral anchor disc is arranged on the guide section, and the guide section is connected with the rod cap sections and the two adjacent rod cap sections through bolts.

Further, the lower end of the pole cap section is welded with a sleeve, the inner diameter of the sleeve is larger than the outer diameter of the pole cap section, and a connecting hole for a bolt to pass through is formed in the sleeve.

Further, the pole cap section close to the bearing platform connecting plate is welded and connected with the lower end of the bearing platform connecting plate.

And further, an anchor rod stiffening plate is welded and fixed between the connecting pipe and the bearing platform connecting plate.

Further, the second helical anchor is inclined outwardly at an angle of 15 ° and the first helical anchor is inclined outwardly at an angle of 6 °.

Further, orthographic projections of the axes of the first spiral anchor rod and the second spiral anchor rod on the bearing platform connecting plate are all on a diagonal extension line of the angle.

The utility model has the beneficial effects that:

the spiral anchor foundation is used for 110KV power transmission line towers, the layout of the spiral anchor groups and the structural arrangement of the spiral anchors, such as the orientation of a bearing platform connecting plate and the arrangement of four spiral anchors, so that the bearing capacity of the spiral anchor foundation is improved. The first spiral stock and the second spiral stock all include coaxial line's direction section and pole cap section, and the transportation of spiral stock of being convenient for on the one hand, on the other hand is convenient for adjust the length of spiral stock as required, if the quantity of adjustment setting pole cap section.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of the present utility model;

FIG. 2 is a top view of a helical anchor group;

FIG. 3 is a schematic view of the construction of a first helical anchor;

fig. 4 is a front view of a helical anchor group.

The anchor rod comprises a spiral anchor group 1, a bearing platform connecting plate 2, a first spiral anchor rod 3, a second spiral anchor rod 4, a guide section 5, a rod cap section 6, a spiral anchor disc 7, a sleeve 8, a connecting pipe 9 and an anchor rod stiffening plate 10.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in figures 1 and 2, the spiral anchor foundation comprises spiral anchor groups 1 buried in four corners of a tower core, four spiral anchor groups 1 enclose a square structure, the intersection of diagonal lines of the square structure is the tower core, and the values of the foundation positive root opening and the foundation side root opening are the same. The spiral anchor group 1 comprises a square bearing platform connecting plate 2, wherein one diagonal line of the bearing platform connecting plate 2 is arranged along the line direction, and the other diagonal line is perpendicular to the line direction.

The bearing platform connecting plate 2 is close to the first spiral stock 3 of slope all to be provided with the both corners department of tower heart, and the both corners department of keeping away from the tower heart all is provided with the second spiral stock 4 of slope, and the angle of second spiral stock 4 outwards slope is greater than the angle of first spiral stock 3 outwards slope, and here the angle refers to the angle that deviates from vertical square. If the second helical anchor 4 is inclined outwardly by 15 deg., the first helical anchor 3 is inclined outwardly by 6 deg.. In addition, the orthographic projections of the axes of the first spiral anchor rod 3 and the second spiral anchor rod 4 on the bearing platform connecting plate 2 are all on the diagonal extension line of the angle, namely on the same straight line with the diagonal line of the angle.

Example 2

The embodiment is basically the same as the embodiment 1, and is different in that, as shown in fig. 3 and 4, the first spiral anchor rod 3 and the second spiral anchor rod 4 each comprise a guide section 5 and a plurality of rod cap sections 6 which are coaxially connected, a spiral anchor disc 7 is welded and fixed on the guide section 5, a sleeve 8 is welded and fixed at the lower end of the rod cap section 6, the inner diameter of the sleeve 8 is larger than the outer diameter of the rod cap section 6, a connecting hole for a bolt to pass through is arranged on the sleeve 8, and the sleeve 8 is sleeved at the upper end of the guide section 5 or the upper ends of the adjacent rod cap sections 6, so that the connection between the guide section 5 and the rod cap sections 6 and between the two adjacent rod cap sections 6 is realized through bolts.

The part with the connecting hole is removed to the upper end that is close to pole cap section 6 of cushion cap connecting plate 2, then links to each other with the lower extreme welding of cushion cap connecting plate 2 (as shown in fig. 4), still welded fastening has stock stiffening plate 10 between pole cap section 6 and the cushion cap connecting plate 2, through stock stiffening plate 10's setting, strengthens the joint strength between pole cap section 6 and the cushion cap connecting plate 2.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A screw anchor foundation, characterized by: including burying in the spiral anchor crowd in tower core four corners, the spiral anchor crowd includes square cushion cap connecting plate, and a diagonal of cushion cap connecting plate sets up along the line direction, and another diagonal is perpendicular with the line direction, and the cushion cap connecting plate is close to the first spiral stock of slope all to be provided with in tower core's both corners department, and the second spiral stock that inclines all is provided with in remaining both corners department, and the angle of second spiral stock outside slope is greater than the angle of first spiral stock outside slope.

2. A screw anchor foundation according to claim 1, wherein: the first spiral anchor rod and the second spiral anchor rod comprise a guide section and a plurality of rod cap sections which are coaxial, a spiral anchor disc is arranged on the guide section, and the guide section is connected with the rod cap sections and the two adjacent rod cap sections through bolts.

3. A screw anchor foundation according to claim 2, wherein: the lower extreme welding of pole cap section has the sleeve pipe, and the internal diameter of sleeve pipe is greater than the external diameter of pole cap section, is provided with the connecting hole that is used for the bolt to pass on the sleeve pipe.

4. A screw anchor foundation according to claim 2 or 3, wherein: the pole cap section near the bearing platform connecting plate is welded with the lower end of the bearing platform connecting plate.

5. A screw anchor foundation according to claim 4, wherein: and an anchor rod stiffening plate is welded and fixed between the connecting pipe and the bearing platform connecting plate.

6. A screw anchor foundation according to claim 1, wherein: the second helical anchor rod is inclined outwardly at an angle of 15 deg., and the first helical anchor rod is inclined outwardly at an angle of 6 deg..

7. A screw anchor foundation according to claim 1 or 5, wherein: orthographic projections of the axes of the first spiral anchor rod and the second spiral anchor rod on the bearing platform connecting plate are all on the diagonal extension line of the angle.