阅读说明：本技术 一种输电铁塔基础及构件的整体加固装置及方法 (Integral reinforcing device and method for foundation and component of power transmission tower ) 是由 邓凤淋 王勇 代志强 时云洪 黎智 杨昌富 张军 张鹏 华建坤 钟乾 李雅利 于 2019-10-25 设计创作，主要内容包括：本发明公开了一种输电铁塔基础及构件的整体加固装置及方法,包括：原塔基础；原塔脚板；原靴板；塔脚；新塔脚板,焊接在原塔脚板的外围,并且新塔脚板的四周边缘延伸出原塔基础的边缘；新塔基础,浇筑形成在原塔基础的外围；新地脚螺栓,预埋在新塔基础内,并且新塔脚板通过新地脚螺栓固定在新塔基础上；锚墩,浇筑形成在新塔基础和原塔基础上,在锚墩的四周边缘设置有锚杆孔；锚杆,安装在锚杆孔内,并且锚杆向下插入到原塔基础周围的岩石土壤中。本发明可在不影响线路安全稳定运行,保证铁塔不倒、不拆除的情况下进行原位置全方位的加固补强,以解决塔基础不满足铁塔作用力要求的问题。(The invention discloses an integral reinforcing device and method for a power transmission iron tower foundation and a component, which comprises the following steps: an original tower foundation; an original tower foot plate; a raw boot plate; a tower foot; the new tower foot plate is welded on the periphery of the original tower foot plate, and the peripheral edge of the new tower foot plate extends out of the edge of the original tower foundation; a new tower foundation which is poured and formed at the periphery of the original tower foundation; the new foundation bolt is embedded in the new tower foundation, and the new tower foot plate is fixed on the new tower foundation through the new foundation bolt; the anchor pier is formed on the new tower foundation and the original tower foundation in a pouring mode, and anchor rod holes are formed in the peripheral edge of the anchor pier; and the anchor rod is installed in the anchor rod hole, and is downwards inserted into rock soil around the original tower foundation. The invention can carry out the omnibearing reinforcement and reinforcement in situ under the conditions of not influencing the safe and stable operation of the line, ensuring that the iron tower does not fall down and is not dismantled, thereby solving the problem that the tower foundation can not meet the requirement of the acting force of the iron tower.)

1. The utility model provides an integral reinforcement device of steel pylons basis and component, includes:

an original tower foundation (1);

the original tower foot plate (3) is fixed on the surface of the original tower foundation (1) through an original tower foot bolt (15), and the original tower foot plate (3) is positioned inside the surface of the original tower foundation (1);

the original shoe plate (9) is fixedly connected to the original tower foot plate (3);

a tower foot (2) connected to the original boot plate (9);

it is characterized by also comprising:

the new tower foot plate (8) is provided with a frame opening matched with the original tower foot plate (3) in shape, the new tower foot plate (8) is welded on the periphery of the original tower foot plate (3) through the frame opening, and the peripheral edge of the new tower foot plate (8) extends out of the edge of the original tower foundation (1);

the new tower foundation (5) is formed on the periphery of the original tower foundation (1) in a pouring mode;

the new foundation bolt (6) is pre-buried in the new tower foundation (5), and the new tower foundation (8) is fixed on the new tower foundation (5) through the new foundation bolt (6);

the anchor piers (7) are poured on the new tower foundation (5) and the original tower foundation (1), the original tower foot plates (3), the original shoe plates (9) and the new tower foot plates (8) are wrapped and covered, and anchor rod holes are formed in the peripheral edges of the anchor piers (7);

anchor rods (14) installed in the anchor rod holes, and the anchor rods (14) are downwardly inserted into rock soil around the original tower foundation (1).

2. The integral reinforcing device for the foundation and the component of the power transmission tower as claimed in claim 1, wherein a new shoe plate (10) is welded outside the original shoe plate (9), and the part of the bottom of the new shoe plate (10) positioned on the new foot plate (8) is welded on the new foot plate (8).

3. The integral reinforcing device for the foundation and the component of the transmission tower according to claim 1, characterized in that a new rib plate (12) is welded on the new tower foot plate (8).

4. The integral reinforcing device for the foundation and the component of the power transmission tower as claimed in claim 3, wherein the new rib plates (12) are formed in a plurality of blocks, and the new rib plates (12) are formed on the new tower foot plates (8) in a forward crossing manner.

5. The integral reinforcing device for the foundation and the component of the power transmission tower as claimed in claim 1, wherein a grouting hole (4) is formed in the original tower foundation (1) or the surrounding soil, and concrete is poured in the grouting hole (4) through pressure grouting.

6. The device for integrally reinforcing the foundation and the component of the power transmission tower as claimed in claim 1, wherein a section of the tower foot (2) entering the abutment from the external environment is wrapped with a steel plate (13).

7. The integral reinforcing method for the foundation and the component of the power transmission tower is characterized by comprising the following steps of:

(1) digging out a surface soil body on an original tower foundation (1) of the power transmission iron tower to expose the upper part of the original tower foundation (1);

(2) pouring the periphery of the original tower foundation (1) to form a new tower foundation (5), and embedding new foundation bolts (6) in the new tower foundation (5) during pouring;

(3) a new tower foot plate (8) is welded on the periphery of the original tower foot plate (3), the new tower foot plate (8) extends outwards to the surface edge of the original tower foundation (1), and the new tower foot plate (8) is connected to the new tower foundation (5) through a new foundation bolt (6);

(4) welding a new shoe plate (10) outside the original shoe plate (9), and welding the part of the bottom of the new shoe plate (10) positioned on the new step plate (8);

(5) a new rib plate (12) is welded on the new tower foot plate (8);

(6) pouring on the original tower foundation (1) and the new tower foundation (5) to form a new anchor pier (7), wrapping and covering an original tower foot plate (3), an original shoe plate (9) and a new tower foot plate (8) by the new anchor pier (7), and forming anchor rod (14) holes in the peripheral edge of the anchor pier (7);

(7) the anchor rods (14) are installed in the anchor rod holes and the anchor rods (14) are inserted down into the rock soil surrounding the original tower foundation (1).

8. Method for consolidating the foundation of a power transmission tower according to claim 6, characterized in that before step (2), grouting holes (4) are drilled in the original tower foundation (1) or in the surrounding soil, and concrete is poured into the grouting holes (4) by means of pressure grouting.

9. Method for reinforcing the foundation of a power transmission tower according to claim 6, characterized in that, when the anchor pier (7) is poured, a section of the tower foot (2) which enters the anchor pier (7) from the external environment is wrapped with steel plates (13).

Technical Field

The invention relates to an integral reinforcing device and method for a power transmission iron tower foundation and a component, and belongs to the technical field of iron tower foundation reinforcement.

Background

The transmission tower is an important device in the power transmission engineering. In order to ensure the normal operation of power transmission, the transmission tower should be stably fixed on the ground and have certain requirements of wind resistance, ice coating resistance and the like. However, many power transmission towers used at present are manufactured and installed according to old edition specifications, and performance indexes of the power transmission towers cannot meet the requirements of increasingly severe environments.

In order to improve the stability of the power transmission tower, two methods can be generally adopted to realize: one method is to use a more stable transmission iron tower to replace the existing transmission iron tower, and the method has the problems of high cost, complex construction, long replacement period and the like; the other method is to reinforce the existing transmission tower, and usually a mounting hole is made on a main material of the transmission tower, and a reinforcing plate is installed on the main material by using a bolt.

In order to solve the problem that the reinforcing performance cannot be guaranteed due to the fact that a main material is damaged, a document with the application number of 2009100677124 discloses a reinforcing method of a power transmission iron tower, a pair of connecting angle steels are arranged on the back to back of the outer side of each node board by fully utilizing mounting holes in the existing main material, a transverse plate is arranged at the intersection point of a transverse material or an oblique steel between every two adjacent node boards and the main material, and a fastening bolt is used for enabling the reinforcing angle steels to be arranged on the connecting angle steels in parallel to the main material, so that the reinforcing function of the power transmission iron tower is achieved.

However, the existing reinforcement mode mainly aims at the iron tower itself, and does not reinforce the foundation of the iron tower, and when the tower foundation does not meet the requirement of the acting force of the iron tower, namely, the stress of the tower foundation is poor, how to carry out the original-position omnibearing reinforcement under the condition that the iron tower is not fallen and not dismantled is ensured without influencing the safe and stable operation of a line, and relevant reports are not seen yet.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the device and the method for integrally reinforcing the foundation and the component of the power transmission tower are provided, the original position omnibearing reinforcing and reinforcing are carried out under the conditions that the safe and stable operation of a line is not influenced, and the iron tower is ensured not to fall down or be dismantled, so that the problem that the tower foundation can not meet the requirement of the acting force of the iron tower is solved.

The technical scheme of the invention is as follows: the utility model provides an integral reinforcement device of steel pylons basis and component, includes:

an original tower foundation;

the original tower foot plate is fixed on the surface of the original tower foundation through an original tower foot bolt and is positioned inside the surface of the original tower foundation;

the original shoe plate is fixedly connected to the original tower foot plate;

the tower foot is connected to the original boot plate;

it is characterized by also comprising:

the new tower foot plate is provided with a frame opening matched with the original tower foot plate in shape, the new tower foot plate is welded on the periphery of the original tower foot plate through the frame opening, and the peripheral edge of the new tower foot plate extends out of the edge of the original tower foundation;

the new tower foundation is poured and formed on the periphery of the original tower foundation;

the new foundation bolt is embedded in the new tower foundation, and the new tower foot plate is fixed on the new tower foundation through the new foundation bolt;

the anchor piers are formed on the new tower foundation and the original tower foundation in a pouring mode, the original tower foot plates, the original shoe plates and the new tower foot plates are covered in a wrapping mode, and anchor rod holes are formed in the peripheral edges of the anchor piers;

and the anchor rod is installed in the anchor rod hole, and is downwards inserted into rock soil around the original tower foundation.

Preferably, a new shoe plate is welded outside the original shoe plate, and the part of the bottom of the new shoe plate, which is positioned on the new step plate, is welded on the new step plate.

Preferably, a new rib plate is welded on the new tower foot plate.

Preferably, the new rib plates are formed in a plurality of blocks, and the plurality of blocks are formed on the new tower foot plate in a forward crossing manner.

Preferably, grouting holes are formed in the original tower foundation or surrounding soil, and concrete is poured in the grouting holes through pressure grouting.

Preferably, a section of the tower foot entering the pier from the external environment is wrapped with a steel plate.

The invention also provides an integral reinforcing method for the foundation and the component of the power transmission tower, which comprises the following steps:

(1) digging out a surface soil body on an original tower foundation of the power transmission iron tower to expose the upper part of the original tower foundation;

(2) pouring the periphery of the original tower foundation to form a new tower foundation, and embedding new foundation bolts in the new tower foundation during pouring;

(3) a new tower foot plate is welded on the periphery of the original tower foot plate, the new tower foot plate extends outwards to the surface edge of the original tower foundation, and the new tower foot plate is connected to the new tower foundation through a new foundation bolt;

(4) welding a new shoe plate outside the original shoe plate, and welding the part of the bottom of the new shoe plate, which is positioned on the new step plate, on the new step plate;

(5) welding a new rib plate on the new tower foot plate;

(6) pouring on the original tower foundation and the new tower foundation to form a new anchor pier, wrapping and covering the original tower foot plate, the original shoe plate and the new tower foot plate by the new anchor pier, and arranging anchor rod holes at the peripheral edge of the anchor pier;

(7) the anchor rods are installed in the anchor rod holes and inserted down into the rock soil surrounding the original tower foundation.

Preferably, before step (2), grouting holes are drilled in the original tower foundation or the surrounding soil, and concrete is poured in the grouting holes through pressure grouting.

Preferably, when the anchor pier is poured, a section of the tower foot entering the anchor pier from the external environment is wrapped with a steel plate in advance.

The invention has the beneficial effects that: the invention reinforces the foundation of the iron tower by changing the tower foot expanding plate and adding the foundation bolt, forms an anchor pier by pouring on the original tower foundation, and punches the anchor rod on the anchor pier, so that the anchor pier and the anchor rod are fastened in the rock, and the anchor rod bears the bending moment generated by the pulling force and the horizontal force on the iron tower, thereby meeting the acting force requirement of the foundation of the iron tower. In addition, the invention drills a plurality of grouting holes downwards in the original tower foundation or the surrounding soil, concrete is poured in the grouting holes through pressure grouting, the concrete can be injected into the grouting holes under pressure in the mode, and the concrete can be extruded and permeated from the grouting holes to the radial original tower foundation or the radial soil under the action of pressure, so that the bearing capacity of the original tower foundation can be improved, and the requirement of the iron tower on the downward pressure acting force of the original tower foundation can be met. The invention can carry out in-situ reinforcement and reinforcement without affecting the safe and stable operation of the line and ensuring the iron tower not to fall down or be dismantled, thereby meeting the stress requirement of the iron tower.

Drawings

FIG. 1 is an elevation view of an integral reinforcing apparatus for a pylon foundation and structural members according to one embodiment;

FIG. 2 is an enlarged schematic view of a connection between the iron tower and the original tower foundation in FIG. 1;

FIG. 3 is a plan view of a new tower footing plate and an original tower footing plate;

fig. 4 is a view of the arrangement of the anchor rods on the abutment;

description of reference numerals:

1 original tower foundation, 2 tower legs, 3 original tower leg plates, 4 grouting holes, 5 new tower foundations, 6 new foundation bolt, 7 anchor piers, 8 new tower leg plates, 9 original shoe plates, 10 new shoe plates, 11 original rib plates, 12 new rib plates, 13 steel plates, 14 anchor rods and 15 original foundation bolt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic view of an integral reinforcing apparatus for a foundation and a member of a power transmission tower according to an embodiment. The integral reinforcing device for the transmission tower foundation and the components in the embodiment comprises an original tower foundation 1, a tower foot 2, a grouting hole 4, a new tower foundation 5, a new foundation bolt 6, a new tower foot plate 8, an anchor pier 7 and an anchor rod 14.

The original tower foundation 1 mainly plays a role of supporting a power transmission tower and is generally formed by pouring reinforced concrete.

The tower foot 2 is a part of the power transmission iron tower and is fixedly arranged on the original tower foundation 1. Specifically, referring to fig. 2 and 3, anchor bolts are embedded in an original tower foundation 1, a tower foot 2 plate is installed on the original tower foundation 1, the tower foot 2 plate is fixed through the anchor bolts, a shoe plate is installed on the tower foot 2 plate, and the tower foot 2 is connected to the shoe plate through bolts, welding and the like. Original rib plates 11 are welded on the original tower foot plates 3, the original rib plates 11 are connected between the original shoe plates 9, and the size of the original tower foot plates 3 is smaller than the surface size of the original tower foundation 1. Generally, the tower foot 2 mainly comprises a main material of the tower foot 2 and an oblique material of the tower foot 2.

And the grouting holes 4 are formed in the original tower foundation 1 or the surrounding soil. Referring to fig. 1, a plurality of grouting holes 4 are drilled downwards in the soil around the original tower foundation 1, concrete is poured into the grouting holes 4 through pressure grouting, the concrete can be pressure-injected into the grouting holes 4 through the method, and the concrete can extrude and penetrate from the grouting holes 4 into the soil around the radial original tower foundation 1 under the pressure, so that the bearing capacity of the original tower foundation 1 can be improved, and the requirement of the iron tower on the pressing action force of the original tower foundation 1 can be met. In one example, 3 grouting holes 4 are formed in the original tower foundation 1 around the center of the original tower foundation, and the 3 grouting holes 4 are uniformly distributed on the same circumference.

And the new tower foundation 5 is poured to form the periphery of the original tower foundation 1, and the new tower foundation 5 is mainly used for fixing the new foundation bolts 6 to realize the amplification of the original tower foot plates 3. The upper end face of the new tower foundation 5 is flush with the upper end face of the original tower foundation 1.

The new foundation bolts 6 are pre-buried in the new tower foundation 5 during pouring, and the new foundation bolts 6 are distributed uniformly on the periphery of the original tower foundation 1.

And the new tower foot plate 8 is welded on the periphery of the original tower foot plate 3, the new tower foot plate 8 extends outwards to the surface edge of the original tower foundation 1, and the new tower foot plate 8 is connected to the surface of the new tower foundation 5 through a new foundation bolt 6. Specifically, a new square tower foot plate 8 is welded outside the original tower foot plate 3, the new square tower foot plate 8 is provided with a frame opening matched with the periphery of the original tower foot plate 3, the frame opening is connected with the original tower foot plate 3 through welding, through holes matched with the new foot bolts 6 are formed in the periphery of the new tower foot plate 8, and the new foot bolts 6 fix the new tower foot plate 8 on the new tower foundation 5 through the through holes.

In order to improve the connection strength of the original shoe plate 9, a new shoe plate 10 is welded to the outside of the original shoe plate 9, and the part of the bottom of the new shoe plate 10 located on the new step plate 8 is welded to the new step plate 8, and the inside thereof is welded to the outer end face of the original shoe plate 9.

A new rib plate 12 is welded on the new tower foot plate 8 to improve the connection reliability of the new tower foundation 5 and the original tower foundation 1. Specifically, the new rib plates 12 are formed in several pieces, and several pieces of the new rib plates 12 are formed on the new tower foot plate 8 in a forward crossing manner.

The anchor pier 7 is formed on the original tower foundation 1 and the new tower foundation 5 through pouring, the original tower foot plate 3, the original shoe plate 9 and the new tower foot plate 8 are wrapped and covered, anchor rod 14 holes are formed in the peripheral edge of the pier, specifically, the pier is square, the anchor rod 14 holes are formed in each edge, in one example, a C25 reinforced concrete pier with the thickness of 0.6 ~ 8.0.0 m is additionally arranged at the top of the original tower foundation 1, the width of the pier is 2.0m, and anchor rod holes with the diameter of 0.1m and the depth of 2.5m are formed below the pier along the edge of the pier.

Referring to fig. 4, the anchor rods 14 are used together with the anchor piers 7 to bear bending moments generated by the uplift force and the horizontal force of the power transmission tower. The anchor rods 14 are installed in the anchor rod holes, and the anchor rods 14 are downwardly inserted into rock soil around the original tower foundation 1. In one example, the bolts 14 each employ HRB400 tendons having a diameter of 25 gauge.

Preferably, a section of the tower leg 2 entering the abutment from the external environment is wrapped with a steel plate 13, and the structure can effectively prevent the corrosion of the contact part of the tower leg 2 and the new anchor pier 7 and prolong the service life of the tower leg 2 as much as possible.

The embodiment of the invention also provides a method for reinforcing the foundation of the power transmission tower, which comprises the following steps:

(1) digging out a surface soil body on an original tower foundation 1 of the power transmission iron tower to expose the upper part of the original tower foundation 1;

(2) grouting holes 4 are drilled in the soil around the original tower foundation 1, and concrete is poured into the grouting holes 4 by pressure grouting.

(3) A new tower foundation 5 is formed by pouring on the periphery of the original tower foundation 1, and a new foundation bolt 6 is pre-buried in the new tower foundation 5 during pouring;

(4) a new tower foot plate 8 is welded on the periphery of the original tower foot plate 3, the new tower foot plate 8 extends outwards to the surface edge of the original tower foundation 1, and the new tower foot plate 8 is connected to the new tower foundation 5 through a new foundation bolt 6;

(5) welding a new shoe plate 10 outside the original shoe plate 9, and welding the part of the bottom of the new shoe plate 10, which is positioned on the new step plate 8, on the new step plate 8;

(6) welding a new rib plate 12 on the new tower foot plate 8;

(7) pouring to form a new anchor pier 7 on the original tower foundation 1 and the new tower foundation 5, wherein the new anchor pier 7 wraps and covers an original tower foot plate 3, an original shoe plate 9 and a new tower foot plate 8, anchor rod holes are formed in the peripheral edge of the anchor pier 7, and when a pier platform is cast, a section, entering the pier platform from the external environment, of a tower foot 2 is wrapped with a steel plate 13 in advance;

(8) the anchor rods 14 are installed in the anchor rod holes and said anchor rods 14 are inserted down into the rock soil surrounding the original tower foundation 1.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.