Iron tower foundation reinforcing and lifting device

Abstract

The utility model provides an iron tower foundation reinforcing and lifting device which comprises an old foundation and a new foundation, the new foundation is connected to the outer corner side of the old foundation in a pouring mode, the cross section of the new foundation is in an L shape, foundation bolts are embedded in the new foundation, the outer surfaces of the foundation bolts are connected with steel channels, the steel channels are welded, and the steel channels are connected with the old foundation. The top of the old foundation is fixedly connected with a pedal, and the channel steel is fixedly connected with the pedal. The steel channel foundation has the advantages of being stable in structure and capable of bearing large loads. When matched with a lifting tower leg reinforcing structure, the weight of the iron tower can be effectively supported, and continuous sinking of the iron tower is prevented. And the sunken tower legs are lifted, and the tower is strengthened and then reinforced, so that normal operation of a line is guaranteed. The channel steel foundation is relatively convenient to machine and install, the construction period can be effectively shortened, and the construction cost is reduced. The method has important practical significance for the iron tower needing to be reinforced in time.

Description

Technical Field

[0001] The utility model relates to the technical field of iron tower reinforcement, in particular to an iron tower foundation reinforcement and lifting device. Background Art

[0002] The 28# tower type is a 06B2-Z2-27 straight tower, with a tension section of 25#-33#, and a tension section length of 2046 meters. The side spans of the 28# tower are 302 meters and 199 meters, and there are no important cross-spans in the two sections. The tower foundation is a stepped foundation, the anchor bolts are M27 extended anchor bolts, and a large plate foundation has been installed, with a foundation burial depth of 2.4 meters.

[0003] The geological collapse in the coal mining area causes surface cracks near the pole towers, foundation collapse, tilting of the pole towers, tilting of the porcelain bottle string, and changes in the sag stress of the ground conductor, which seriously affect the safe operation of the energized lines.

[0004] After on-site investigation, measures have been taken to install temporary guy wires. The plan is to raise the tower legs that have sunk, straighten and reinforce the tower to ensure the normal operation of the line. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the utility model is to provide a tower foundation reinforcement and lifting device to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a tower foundation reinforcement and lifting device, comprising an old foundation and a new foundation, wherein the new foundation is cast and connected to the outer corner of the old foundation, and the cross-sectional shape of the new foundation is "L"-shaped;

[0008] Anchor bolts are pre-buried inside the new foundation, the outer surfaces of the anchor bolts are connected to channel steels, and the channel steels are welded;

[0009] A foot pedal is fixedly connected to the top of the old foundation, and the channel steel is fixedly connected to the foot pedal;

[0010] The top of the footrest is fixedly connected with a tower leg, and the outer surface of the tower leg is fixedly connected with a tower leg reinforcement rod;

[0011] The top surface of the channel steel is fixedly connected with an oblique support rod, the top end of the oblique support rod is fixedly connected to a point of the tower leg reinforcement rod, and the corner of the channel steel is fixedly connected with an angle steel.

[0012] Preferably, in any of the above schemes, the new foundation is cast by reinforced concrete, and the new foundation is flush with the top surface of the old foundation.

[0013] Adopting the above technical solution: the core structure of the iron tower reinforcement device is: new foundation, anchor bolts, channel steel, tower leg reinforcement rods, diagonal support rods and angle steels.

[0014] Construction precautions: Before construction, the foundation roots on site should be carefully checked. During excavation, if any adverse geological phenomena are found, appropriate technical measures should be taken during construction to ensure the technical requirements of the foundation pit.

[0015] After the foundation pit is excavated, until the original ground foundation of the tower is encountered, the foundation concrete at the connection position is broken up, re-poured and reinforced with steel bars, and well built together with the original foundation.

[0016] Before pouring the foundation, the foundation root opening, anchor bolt spacing and other dimensions should be carefully checked again to ensure that they are correct before construction can begin. Its external dimensions, steel bars and anchor bolt specifications, etc. must meet the requirements during construction and no errors are allowed. The foundation materials shall be based on the material indicators in the foundation configuration table, and the specifications of the additional anchor bolts for the foundation shall be based on the configuration table; check and ensure that all anti-sinking beams fall on the required elevation.

[0017] The cast-in-place foundation must be cast with formwork, and stone stacking is not allowed. The underground part of the foundation excavated from the original soil can be cast without formwork. After checking that the foundation pit size meets the design requirements, the foundation should be cast immediately. If it cannot be cast immediately due to special circumstances, the pit mouth should be protected and ground water is strictly prohibited from flowing in. After casting, the length of the anchor bolts meets the construction requirements.

[0018] When backfilling the foundation pit, leaves, weeds and other debris in the backfill soil should be removed. The backfill soil should be higher than the ground, but the tower legs should not be buried in the soil. After the foundation construction is completed, the backfill soil should be strictly compacted in layers, and a 300 mm anti-sinking layer should be piled on the top of the linear tower foundation pit. The upper area and the surrounding area should not be less than the pit mouth. In case of poor geology or complex terrain, it should be handled as appropriate according to the on-site conditions. The drainage slope of the base surface from the center of the tower to the outside should not be less than 5%. For water that may flow to the base surface, drainage ditches should be repaired.

[0019] Preferably, from any of the above schemes, the depth of the new foundation is the same as the depth of the old foundation, and the length and width of the new foundation are 1400 mm and 1400 mm respectively.

[0020] Preferably, any of the above schemes is that the model of the anchor bolt is M42, and the bottom end of the anchor bolt has a plurality of hook heads.

[0021] Preferably, any of the above schemes is that the channel steel is welded to the foot pedal, the channel steel is connected to the anchor bolts via nuts, and a gasket is provided between the bottom surface of the channel steel and the new foundation.

[0022] Fixing method of channel steel foundation of pole tower: make channel steel foundation on site according to the root of pole tower, use anchor bolts to fix the channel steel foundation initially, and use angle iron to fix the foundation channel steel to the tower. Use manpower to break the protective cap of the tower leg that was originally below the horizontal level, loosen the original anchor bolts with special tools, and cooperate with the jack. After the jack (50t) + channel steel + wire sleeve is firmly fixed and stable, the main material of the tower is slowly stressed by manual operation of the jack, and the lever hoist on the tension wire is loosened according to the situation of the tower being straightened, and the lever hoist on the diagonal side is tightened accordingly. When the tower leg is raised, it is padded with the prepared steel plate, and the theodolite is used for observation until the tower is straightened. The height of the anchor bolt can be adjusted up to 0.5 meters.

[0023] Preferably, any of the above schemes is that the tower leg and the tower leg reinforcement rod are connected by a plate-shaped tower leg clamp in combination with bolts and nuts, the oblique support rod is welded to the top surface of the channel steel, and the top end of the oblique support rod is welded to the tower leg reinforcement rod.

[0024] Tower fixing: After the tower is straightened, adjust the new anchor bolts to fix the tower pole to the channel steel foundation. After passing the inspection, readjust the guy wires around the tower to ensure uniform force. The temporary guy wires will not be removed.

[0025] Preferably, any of the above solutions comprises a single tower leg reinforcement rod connecting two oblique support rods.

[0026] The channel steel foundation structure is stable and can bear large loads. When combined with the tower leg reinforcement structure, it can effectively support the weight of the tower and prevent it from sinking further. The tower legs that have sunken will be raised, and the tower will be straightened and reinforced to ensure the normal operation of the line.

[0027] The processing and installation of channel steel foundation is relatively convenient, which can effectively shorten the construction period and reduce the construction cost. This is of great practical significance for the iron tower that needs to be reinforced in time.

[0028] The new foundation provides stable support for the tower, while the channel steel foundation enhances the structure’s load-bearing capacity and stability, together preventing the tower from sinking further.

[0029] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0030] The tower foundation reinforcement and lifting device is equipped with a new foundation, anchor bolts, channel steel, tower leg reinforcement rods, diagonal support rods and angle steel. The channel steel foundation structure is stable and can withstand a large load. When the tower leg reinforcement structure is lifted, it can effectively support the weight of the tower and prevent it from sinking further. The tower legs that have sunken are raised, and the tower is straightened and reinforced to ensure the normal operation of the line.

[0031] The processing and installation of channel steel foundation is relatively convenient, which can effectively shorten the construction period and reduce the construction cost. This is of great practical significance for the iron tower that needs to be reinforced in time.

[0032] The new foundation provides stable support for the tower, while the channel steel foundation enhances the structure’s load-bearing capacity and stability, together preventing the tower from sinking further.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0036] Figure 2 It is a structural schematic diagram of the tower leg of the utility model;

[0037] Figure 3 It is a partial structural schematic diagram of the foot pedal of the utility model;

[0038] Figure 4 It is a schematic diagram of the local structure of the anchor bolt of the utility model.

[0039] In the figure: 1- old foundation, 2- new foundation, 3- anchor bolts, 4- channel steel, 5- foot pedal, 6- tower leg, 7- tower leg reinforcement rod, 8- oblique support rod, 9- angle steel. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-4 As shown, the tower foundation reinforcement and lifting device comprises an old foundation 1 and a new foundation 2. The new foundation 2 is cast and connected to the outer corner of the old foundation 1. The cross-sectional shape of the new foundation 2 is "L"-shaped.

[0043] Anchor bolts 3 are embedded in the new foundation 2, and the outer surfaces of the anchor bolts 3 are connected to channel steels 4, which are welded together;

[0044] A foot pedal 5 is fixedly connected to the top of the old foundation 1, and the channel steel 4 is fixedly connected to the foot pedal 5;

[0045] The top of the footrest 5 is fixedly connected with a tower leg 6, and the outer surface of the tower leg 6 is fixedly connected with a tower leg reinforcement rod 7;

[0046] The top surface of the channel steel 4 is fixedly connected with an oblique support rod 8 , the top end of the oblique support rod 8 is fixedly connected to a point of the tower leg reinforcement rod 7 , and the corner of the channel steel 4 is fixedly connected with an angle steel 9 .

[0047] Example 1: The new foundation 2 is poured with reinforced concrete, and the new foundation 2 is flush with the top surface of the old foundation 1. Before the foundation is constructed, the foundation root should be carefully checked on site. During excavation, if any adverse geological phenomena are found, corresponding technical measures should be taken during construction to ensure the technical requirements of the foundation pit.

[0048] After the foundation pit is excavated, until the original ground foundation of the tower is encountered, the foundation concrete at the connection position is broken up, re-poured and reinforced with steel bars, and well built together with the original foundation.

[0049] Before pouring the foundation, the foundation root opening, the spacing of the anchor bolts and other dimensions should be carefully checked again to ensure that they are correct before construction can begin. The external dimensions, specifications of the steel bars and anchor bolts, etc. must meet the requirements during construction and no mistakes are allowed. The foundation materials shall be based on the material indicators in the foundation configuration table, and the specifications of the additional anchor bolts shall be based on the configuration table; check and ensure that all anti-sinking beams fall on the required elevation.

[0050] The cast-in-place foundation must be cast with formwork, and stone piles shall not be used instead. The underground part of the foundation excavated from the original soil can be cast without formwork. After checking that the foundation pit size meets the design requirements, the foundation should be cast immediately. If it cannot be cast immediately due to special circumstances, the pit mouth should be protected and ground water is strictly prohibited from flowing in. After casting, the length of the anchor bolt 3 meets the construction requirements.

[0051] When backfilling the foundation pit, leaves, weeds and other debris in the backfill soil should be removed. The backfill soil should be higher than the ground, but the tower leg 6 should not be placed in the soil. After the foundation construction is completed, the backfill soil should be strictly compacted in layers, and a 300mm anti-sinking layer should be piled on the top of the linear tower foundation pit. The upper area and the surrounding area should not be smaller than the pit mouth. In case of poor geology or complex terrain, it should be handled as appropriate according to the on-site conditions. The drainage slope of the base surface from the center of the tower to the outside should not be less than 5%. For water that may flow to the base surface, drainage ditches should be repaired. The depth of the new foundation 2 is the same as that of the old foundation 1. The length and width of the new foundation 2 are 1400mm and 1400mm respectively.

[0052] Embodiment 2: The model of the anchor bolt 3 is M42, and the bottom end of the anchor bolt 3 has several hook heads. The channel steel 4 is welded to the foot pedal 5, and the channel steel 4 is connected to the anchor bolt 3 by nuts. A gasket is arranged between the bottom surface of the channel steel 4 and the new foundation 2. The channel steel 4 foundation is made on site according to the root of the tower, and the anchor bolt 3 and the channel steel 4 foundation are initially fixed, and the angle iron is used to fix the foundation channel steel 4 to the iron tower. The protective cap of the tower leg 6 that was originally below the horizontal level is broken by manpower, and the original anchor bolt is loosened with a special tool, and the jack cooperates with the work. After the jack (50t) + channel steel + steel wire sleeve are fixed firmly and firmly, the main material of the iron tower is slowly stressed by manually operating the jack, and the lever hoist on the tension wire is loosened according to the straightening of the iron tower, and the lever hoist on the diagonal side is tightened accordingly. When the tower leg 6 is raised, it is padded with the prepared steel plate and observed with the theodolite until the tower is straightened. The height of the anchor bolt 3 can be adjusted by up to 0.5 meters. The tower leg 6 is connected to the tower leg reinforcement rod 7 through a plate-shaped tower leg clamp with bolts and nuts. The oblique support rod 8 is welded to the top surface of the channel steel 4, and the top of the oblique support rod 8 is welded to the tower leg reinforcement rod 7.

[0053] Embodiment 3: Tower fixing: After the tower is straightened, adjust the new anchor bolts 3 to fix the tower pole to the channel steel 4 foundation. After the inspection is qualified, readjust the guy wires around the tower to ensure uniform force. The temporary guy wires are not removed. A single tower leg reinforcement rod 7 connects two oblique support rods 8.

[0054] Finally, the tower leg reinforcement rod 7 is connected to the outer surface of the tower leg 6 through a clamp, and two oblique support rods 8 are connected to each tower leg reinforcement rod 7. The bottom end of the oblique support rod 8 is welded to the top surface of the channel steel 4. The tower leg reinforcement rod 7 increases the cross-sectional area of ​​the tower leg 6 and has a higher supporting strength. The oblique support rod 8 provides auxiliary support to the tower leg 6 structure.

[0055] Compared with the prior art, the present invention has the following beneficial effects:

[0056] The iron tower foundation reinforcement and lifting device is provided with a new foundation 2, anchor bolts 3, channel steel 4, tower leg reinforcement rod 7, oblique support rod 8 and angle steel 9. The channel steel 4 foundation structure is stable and can bear a large load. When the tower leg 6 reinforcement structure is lifted, the weight of the iron tower can be effectively supported to prevent it from sinking further. The tower leg 6 that has sunken is raised, and the tower is straightened and reinforced to ensure the normal operation of the line.

[0057] The processing and installation of channel steel foundation is relatively convenient, which can effectively shorten the construction period and reduce the construction cost. This is of great practical significance for the iron tower that needs to be reinforced in time.

[0058] The new foundation 2 provides stable support for the tower, while the channel steel 4 foundation enhances the bearing capacity and stability of the structure, together preventing the tower from sinking further.

Claims

1. A tower foundation reinforcement and lifting device, characterized in that: It comprises an old foundation (1) and a new foundation (2), wherein the new foundation (2) is cast and connected to the outer corner of the old foundation (1), and the cross-section of the new foundation (2) is in an "L" shape; Anchor bolts (3) are pre-buried inside the new foundation (2), the outer surfaces of the anchor bolts (3) are connected to channel steels (4), and the channel steels (4) are welded together; A foot pedal (5) is fixedly connected to the top of the old foundation (1), and the channel steel (4) is fixedly connected to the foot pedal (5); The top of the footrest (5) is fixedly connected to a tower leg (6), and the outer surface of the tower leg (6) is fixedly connected to a tower leg reinforcement rod (7); The top surface of the channel steel (4) is fixedly connected with an oblique support rod (8), the top end of the oblique support rod (8) is fixedly connected to a point of the tower leg reinforcement rod (7), and the corner of the channel steel (4) is fixedly connected with an angle steel (9).

2. The tower foundation reinforcement and lifting device according to claim 1, characterized in that: The new foundation (2) is cast with reinforced concrete, and the new foundation (2) is flush with the top surface of the old foundation (1).

3. The tower foundation reinforcement and lifting device according to claim 2, characterized in that: The depth of the new foundation (2) is the same as that of the old foundation (1), and the length and width of the new foundation (2) are 1400 mm and 1400 mm respectively.

4. The iron tower foundation reinforcement and lifting device according to claim 3, characterized in that: The model of the anchor bolt (3) is M42, and the bottom end of the anchor bolt (3) has a plurality of hook heads.

5. The tower foundation reinforcement and lifting device according to claim 4, characterized in that: The channel steel (4) is welded to the foot pedal (5), the channel steel (4) is connected to the anchor bolt (3) via a nut, and a gasket is provided between the bottom surface of the channel steel (4) and the new foundation (2).

6. The iron tower foundation reinforcement and lifting device according to claim 5, characterized in that: The tower leg (6) and the tower leg reinforcement rod (7) are connected by means of a plate-shaped tower leg clamp in combination with bolts and nuts; the oblique support rod (8) is welded to the top surface of the channel steel (4); and the top end of the oblique support rod (8) is welded to the tower leg reinforcement rod (7).

7. The iron tower foundation reinforcement and lifting device according to claim 6, characterized in that: The single tower leg reinforcement rod (7) connects two oblique support rods (8).

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