CN207109843U - A kind of goaf transmission line foundation bracing means - Google Patents

Abstract

The utility model discloses a goaf power transmission line foundation reinforcement device, which belongs to the field of foundation protection; the technical problem to be solved is to provide a foundation reinforcement that can combine ordinary foundations into a whole large slab foundation in goaf power transmission lines device; the technical solution adopted to solve this technical problem is: a foundation reinforcement device for transmission lines in gobs, including four rectangular foundations with vertical columns, the upper surface of the foundations is provided with anchor bolts, and the foundation columns are surrounded by fixed Steel, brackets are provided between the foundations, first connection holes and second connection holes are provided at both ends of the fixed steel, the first connection hole is set inside the fixed steel, and the second connection hole is set on the fixed steel On the outside, the fixing steels are arranged in the shape of a square on the foundation column, studs are arranged between the first connecting holes opposite to each other, and the second connecting holes are connected to the brackets; the utility model can be widely used in foundation reinforcement.

Description

A reinforcement device for transmission line foundation in goaf

technical field

The utility model relates to a foundation reinforcing device for transmission lines in goafs, which belongs to the technical field of transmission line foundation protection.

Background technique

The subsidence caused by goaf subsidence and the movement of the surface basin will cause uneven settlement of the foundation of the transmission tower. The non-load stress generated during the uneven settlement of the foundation will most likely lead to accidents such as damage, fracture, and deformation of the tower components. Leading to tower collapse and disconnection, it poses a serious threat to the safe operation of transmission lines.

In order to ensure that the transmission tower can still operate safely and stably when the foundation is unevenly settled, the current common method is to use a large slab foundation and lengthen the anchor bolts.

In actual work, most of the transmission lines are designed to be put into operation early. The design of the large slab foundation was not adopted in the design of that year, but the ordinary foundation was adopted. The ordinary foundation has poor resistance to subsidence and uneven settlement. It is necessary to adjust the foundation and ensure safe operation. very difficult.

Utility model content

The utility model overcomes the deficiencies in the prior art and provides a foundation reinforcement device which can combine ordinary foundations into an integral large slab foundation in a goaf power transmission line.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a gob transmission line foundation reinforcement device, which includes four rectangular foundations with vertical columns, the upper surface of the foundations is provided with anchor bolts, and the foundation columns are surrounded by Fixed steel is provided, and brackets are provided between the foundations.

The two ends of the fixed steel are provided with a first connecting hole and a second connecting hole, the first connecting hole is set on the inner side of the fixed steel, the second connecting hole is set on the outer side of the fixed steel, and the fixed steel is set on the foundation column The top is arranged in a well shape, studs are arranged between the opposite first connecting holes, and the second connecting holes are connected with the bracket.

The studs are double-ended studs, and the studs are matched with nuts, and the nuts are thickened nuts.

The bracket includes steel bars and stirrups.

The fixing steel can be channel steel or other shaped steel.

Compared with the prior art, the utility model has the following beneficial effects: connecting beams are arranged between ordinary straight column foundations, and the straight column foundations are connected into a whole foundation through connecting beams, which increases the stability of the foundation and can effectively It avoids bad accidents such as falling towers and broken lines, effectively ensures safe operation of lines, improves the reliability of power supply, reduces the waste of manpower and material resources caused by adjusting the tower foundation, is safe and environmentally friendly, and is green and low-carbon.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described further.

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a side view of FIG. 1 .

In the figure, 1 is the foundation, 2 is the anchor bolt, 3 is the fixing steel, 4 is the reinforcement frame, 5 is the stud, 6 is the nut, 31 is the first connection hole, and 32 is the second connection hole.

Detailed ways

As shown in Fig. 1 and Fig. 2, the utility model is a goaf power transmission line foundation reinforcement device, which includes four straight column foundations 1 distributed in a rectangular shape, the upper surface of the foundation 1 is provided with anchor bolts 2, and the foundation 1 column There are fixed steels 3 around, and brackets 4 are arranged between the foundations 1; first connecting holes 31 and second connecting holes 32 are arranged at both ends of the fixed steel 3, and the first connecting holes 31 are set inside the fixed steel 3 , the second connection hole 32 is arranged on the outside of the fixed steel 3, and the fixed steel 3 is arranged in a square shape on the column of the foundation 1, and studs 5 are arranged between the opposite first connection holes 31, and the second connection The hole 32 is connected with the support 4; the stud 5 is a double-ended stud, and the stud 5 is provided with a nut 6, and the nut 6 is a thickened nut; the support 4 includes a steel bar and a stirrup; Said fixing steel 3 can be channel steel, also can be other section steel.

When the utility model is in use, first design the reinforcement of the steel frame and the concrete strength level according to the design load and additional load of the foundation of the goaf, and after taking safety reinforcement measures for the iron tower foundation that needs to be reinforced, the steel tower along the foundation 1 around the main column Excavate the groove for installing the bracket 4 downwards, install the fixed steel 3 around the main column of the foundation 1 through bolts 5 and nuts 6, then bind concrete reinforcement at the second connection hole 32 of the fixed steel 3, and then pour concrete , so that multiple foundations 1 are connected into a whole large slab foundation, when the concrete strength reaches 95% and above, the grooves are backfilled, when the concrete strength reaches 100%, the temporary safety reinforcement measures are removed, and the total length of the line is restored.

The above embodiments of the utility model have been described in detail in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Make various changes below.

Claims (5)

1. A foundation strengthening device for power transmission lines in goafs, comprising four rectangular foundations (1), characterized in that: the upper surface of the foundation (1) is provided with anchor bolts (2), the foundation (1 ) fixed steel (3) is arranged around the column, and brackets (4) are arranged between the foundations (1). 2. A goaf transmission line foundation reinforcement device according to claim 1, characterized in that: the two ends of the fixing steel (3) are provided with a first connecting hole (31) and a second connecting hole (32) , the first connecting hole (31) is set on the inside of the fixing steel (3), the second connecting hole (32) is set on the outside of the fixing steel (3), and the fixing steel (3) is on the foundation (1) The uprights are arranged in a well shape, studs (5) are arranged between the opposite first connecting holes (31), and the second connecting holes (32) are connected with the brackets (4). 3. A goaf transmission line foundation reinforcement device according to claim 2, characterized in that: the stud (5) is a double-ended stud, and the stud (5) is matched with a nut ( 6), the nut (6) is a thickened nut. 4. The foundation reinforcement device for power transmission lines in goafs according to claim 1, characterized in that: the support (4) includes steel bars and stirrups. 5. A goaf transmission line foundation strengthening device according to claim 1, characterized in that: said fixing steel (3) can be channel steel or section steel.