CN114525962A - Ground installation is exempted from to excavate and is acted as go-between basis - Google Patents

Abstract

The invention provides a ground-mounted excavation-free stay wire foundation, which comprises a box body filled with heavy objects and an anchor rod; the box body is arranged on the ground; one end of the stay wire is connected to the box body, and the other end of the stay wire is connected to the tower column; the box body is provided with an anchor rod hole, and the anchor rod penetrates through the box body and is fixed underground. The technical scheme provided by the invention has the advantages of simple structure, convenience in construction and low cost, avoids the defects of large workload, high danger and low efficiency caused by foundation pit excavation, and is not limited by geological conditions such as underground water, hard rock and the like.

Description

Ground installation is exempted from to excavate and is acted as go-between basis

Technical Field

The invention relates to the technical field of transmission lines and tower structures, in particular to a ground-mounted excavation-free stay wire foundation.

Background

The iron tower of the power transmission line is divided into a self-standing tower and a guyed tower according to a supporting form, and the self-standing iron tower can realize a preset function without depending on other auxiliary facilities. At present, iron towers for various purposes are mostly self-supporting, such as microwave towers for communication, broadcast television antenna towers, transmission line iron towers and the like. There is also an iron tower, which can realize the predetermined function only by strong guy wires, and the iron tower can not stand without guy wires, such as the guy tower used on the power transmission line, which is not a self-standing iron tower. The stay wire of the stay wire tower is a main stressed component, one end of the stay wire tower is connected with the tower column, and the other end of the stay wire tower is fixed on a foundation. Generally, a permanent wire base requires a permanent base to be set according to different addresses. The temporary stay wire is arranged temporarily, such as the temporary stay wire in the construction of an iron tower, and can be detached after the tower is assembled; and (4) dismantling and recycling the stay wires of the transmission line rush-repair tower after the line is recovered to be normal. When the transmission line is repaired, time is urgent and tasks are heavy. At present, a common stay wire foundation needs to be dug, the construction steps are multiple, such as ground anchor burying, pavement digging, foundation pit backfilling, backfill soil tamping and the like, the workload is large, the danger is high, the efficiency is low, the construction is more limited by geological topography, such as underground water, mud and marsh, paddy field, hard rock and other soft and hard geology is inconvenient, a stay wire point is not easy to find in a mountain region, and a stay wire angle is limited.

Disclosure of Invention

In order to solve the problems of large workload and much limitation of geological topography when the temporary stay wire foundation is arranged at present, the invention provides a ground-mounted excavation-free stay wire foundation which comprises a box body filled with heavy objects and an anchor rod; the box body is arranged on the ground; one end of the pull wire is connected to the box body, and the other end of the pull wire is connected to the tower column; the box body is provided with an anchor rod hole, and the anchor rod penetrates through the box body and is fixed underground.

Preferably, the box body comprises a bottom part and four side parts which are connected with each other; the bottom is located subaerial, the lateral part end to end connects gradually, encloses into the cavity.

Preferably, the anchor rod comprises an anchor head and a rod body; the bottom is provided with an anchor rod hole, the anchor head is positioned in the box body, and the rod body penetrates through the anchor rod hole and is fixed underground.

Preferably, the anchor rod hole is located on a side of the bottom portion away from the pull wire.

Preferably, the device also comprises a stay wire joint; the stay wire joint is connected with the outer side of the side part; one end of the stay wire is connected with the stay wire joint.

Preferably, the stay wire connector is provided with a stay wire hole, and one end of the stay wire is connected with the stay wire hole.

Preferably, the pull wire device further comprises a connecting piece, one end of the connecting piece is connected with the pull wire, and the other end of the connecting piece is connected with the pull wire hole.

Preferably, the structure of the bottom and the side is a plate structure or a frame structure.

Preferably, the material of the bottom part and the side part comprises steel and aluminum alloy.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a ground-mounted excavation-free stay wire foundation which comprises a box body filled with heavy objects and an anchor rod; the box body is arranged on the ground; one end of the pull wire is connected to the box body, and the other end of the pull wire is connected to the tower column; the box body is provided with an anchor rod hole, and the anchor rod penetrates through the box body and is fixed underground. The technical scheme of the invention avoids the defects of large workload, high danger and low efficiency caused by excavation of the foundation pit, and is not limited by geological conditions such as underground water, hard rock and the like.

Drawings

FIG. 1 is a schematic view of a foundation structure of a ground-mounted excavation-free guy wire provided by the present invention;

FIG. 2 is a schematic view of a bolt construction provided by the present invention;

FIG. 3 is a schematic structural diagram of a box for loading heavy objects according to the present invention;

fig. 4 is a schematic view of a ground-mounted excavation-free guy wire foundation fixing guy wire provided by the invention.

In the figure: 1. a bottom; 2. an anchor rod hole; 3. an anchor head; 4. an anchor rod; 5. a stay wire joint; 6. a side portion; 7. a pull wire hole.

Detailed Description

The invention provides a ground installation excavation-free guy wire foundation, which comprises a box body and an anchor rod 4, wherein the box body is provided with a plurality of through holes; the box body is arranged on the ground and used for loading heavy objects; one end of the pull wire is connected to the box body, and the other end of the pull wire is connected to the tower column; the anchor rod 4 penetrates through the box body and is wedged underground, and the box body is fixed on the ground.

The technical scheme provided by the invention avoids foundation pit operation construction, reduces the construction safety risk, is not limited by geological conditions on the selection point of the stay wire foundation, is convenient for local materials, and is convenient and efficient for construction.

For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings.

Example 1:

and when the power transmission line in the mountainous area is iced and collapsed, an emergency maintenance tower needs to be erected urgently to recover power supply quickly. The tower position of rush-repair tower is located a flat ground of slope top, and the land next door is the hillside, can't set up the stay wire point, and the gentle region is because of there is underground rock, the digging pit difficulty.

In view of the above situation, the present embodiment provides a ground-mounted excavation-free guy wire foundation, as shown in fig. 1, including a box filled with heavy objects, an anchor rod 4 and a guy wire joint 5; the box body is arranged on the ground, and the gravity of the weight and the box body and the friction force between the box body and the ground can be used as loads for resisting the pulling force on the pull wire; the box body comprises a bottom 1 and 4 side parts 6 which are connected with each other, and a cavity is enclosed by the 4 side parts 6; the anchor rod 4 penetrates through the bottom 1 of the box body to be wedged underground and is used for fixing the box body and preventing the box body from sliding due to tension of a tension line; the stay wire joint 5 is connected to the outer side of the side part 6 of the box body and is used for being connected with one end of a stay wire, and the other end of the stay wire is connected to a tower column of the stay wire tower.

The heavy object that the box loaded can be according to the condition local materials of job site, and the kind is not restricted, can be balancing weight, sand bag, stone etc.. In this embodiment, the construction site is located in the mountain area, can use local materials, places counterweight and stone in the box. The box body can be a cuboid, a cube and the like, the upper part of the box body can be not covered, and the box body is similar to a truck hopper and can also be totally enclosed. The bottom 1 and the side 6 can be plate-shaped structures made of plates such as alloy steel plates, aluminum alloy plates, stainless steel plates and the like, and can also be frame structures which can be assembled by sectional materials such as angle steel, channel steel, H-shaped steel, steel pipes and the like, the number of the sectional materials is preferably dense enough, so that the assembled box body can be used for placing heavy objects such as stones and sandbags, and the heavy objects are prevented from falling.

In this embodiment, the bottom 1 and the lateral part 6 of box all adopt the steel sheet to make, and the appearance design of box is the cuboid that upper portion uncovered, and the aspect ratio of cuboid, length height ratio all are greater than 1 to improve holistic stability.

The side parts 6 and the bottom part 1 of the box body and the adjacent side parts 6 can be movably connected, such as pin shaft connection, bolt connection, mechanical lock catch connection and the like. In this embodiment, the bottom part 1 and the side parts 6 are connected by a pin, and the different side parts 6 are connected by a bolt. Before the box body is filled with heavy objects, the bolts between the side parts 6 are unscrewed to enable the side parts 6 to be flat, and after the heavy objects are filled, the side parts 6 are erected and locked and fixed through the bolts. The side parts 6 and the bottom part 1 and different side parts 6 can also be fixedly connected, such as welded, so that the bottom part 1 and the side parts 6 form a whole, and the box body is fixed on the ground through the anchor rods 4 and then is filled with heavy objects.

As shown in figure 2, the anchor rod 4 comprises an anchor head 3 and a rod body, as shown in figure 3, an anchor rod hole 2 is formed in the bottom 1 of the box body, and the shape and the size of the anchor rod hole 2 are matched with the rod body of the anchor rod 4 so that the anchor rod 4 can penetrate through the hole. When the bottom 1 is a frame structure assembled by section bars, the anchor rod holes 2 can be arranged on the section bars, and the anchor rods 4 can also directly penetrate through holes between the section bars. The anchor rod holes 2 can be round holes, square holes or polygonal cross-section holes and the like, the number of the anchor rod holes 2 and the number of the anchor rods 4 are determined according to construction requirements and generally do not exceed 20, the anchor rod holes 2 are uniformly distributed at intervals, and the hole pitch is generally 100-1000 mm. The anchor rod 4 is wedged into the ground through the anchor rod hole 2 until the anchor head 3 is close to the bottom 1. The binding force of the rod body of the anchor rod 4 and the ground layer and the friction force between the box body and the ground are utilized to provide the fixing force of the stay wire. For the resistance that better utilization soil layer provided, anchor rod hole 2 should set up the one side of keeping away from the acting as go-between on bottom 1, and the axis in hole and the contained angle of bottom 1 should be the obtuse angle, and makes anchor rod hole 2 wedge in underground along the direction towards acting as go-between to reach the effect that increases the resistance. The obtuse angle range includes 90 to 160 °. The bottom end of the anchor rod 4 is preferably designed to be needle-shaped so as to facilitate wedging of the anchor rod 4 into the ground. The shape of the anchor head 3 is not limited, and can be square, annular, cylindrical, ball head shape, etc. In this embodiment, the anchor head 3 is formed in a circular ring shape to facilitate hoisting.

The stay wire joint 5 is arranged outside the side part 6, and the stay wire joint 5 can be in the shape of a cylinder, a plate and the like. The stay wire connector 5 of the present embodiment is disposed outside the side portion 6 at a position close to the bottom portion 1, and the box body is placed in such an orientation that the stay wire connector 5 faces the direction of the stay wire. The stay wire joint 5 is made of a rectangular steel plate, as shown in fig. 3, the plate surface of the steel plate is respectively vertical to the plate surfaces of the bottom part 1 and the side part 6, and the steel plate is provided with a stay wire hole 7 for connecting a stay wire. The outer side of the steel plate is designed to be chamfered for convenient installation. The stay wire joint 5 can be fixed outside the side part 6 by means of bolting, welding or the like. The four side parts 6 of the box body can be provided with stay wire joints 5, the specific arrangement position and the number are determined according to the position and the number of stay wires on a construction site, and different stay wires can be connected to different side parts 6 of the same box body. When the side part 6 is provided with a plurality of stay wire joints 5, one stay wire joint 5 can be arranged along the middle point of the side line of the bottom part 1, other stay wire joints 5 are uniformly arranged at intervals along the side line direction of the bottom part 1, and the distance between every two adjacent stay wire joints 5 is generally 100 mm-500 mm.

The stay wire can be directly connected to the stay wire hole 7 and can also be connected with the stay wire connector 5 through a connecting piece. One end of the connecting piece is connected with the stay wire, and the other end is connected with the stay wire connector 5. The type of connecting piece is not limited, can be ring, U type ring etc. can set up round pin axle or hasp on the connecting piece to convenient installation and dismantlement.

The specific construction process of the stay wire foundation in the embodiment is to determine the stay wire points on the ground according to the construction scheme, clean large stones on the ground where the stay wire points are located, ensure that the ground is free of large foreign matters and is basically flat. And placing a box body of a stay wire foundation at the position of a stay wire point, enabling the whole box body to face the tower column, enabling a stay wire joint 5 on the box body to face the tower column, unscrewing bolts between the side parts 6, and flatly placing the side parts 6. The anchor rod 4 is inserted into the anchor rod hole 2 on the bottom 1, and the anchor rod 4 is wedged underground by hammering and other methods until the anchor head 3 approaches the bottom 1 and the rod body can not continue to move downwards. And (3) piling heavy objects such as stones on the bottom 1 of the box body, erecting the side parts 6, screwing down bolts between the side parts 6, and continuously adding heavy objects at the gap of the box body to increase the weight of the stay wire foundation so as to finish the installation of the stay wire foundation. The number of the stay wire foundations is determined according to construction requirements and the number of the stay wires, the stay wires can be one or more, and the stay wires with large load can be fixed through two or more stay wire foundations. As shown in fig. 4, each stay wire in this embodiment is provided with a stay wire base. The lower end of each stay wire is connected to the stay wire joint 5 through a U-shaped ring, and the temporary building of the stay wire foundation is completed.

Example 2:

when the existing power transmission line is transferred and transformed, a temporary line needs to be erected, and social power utilization is guaranteed. The temporary line needs to be fixed by a stay wire, and a stay wire foundation is arranged. Traditional guyed foundation operation needs to dig the foundation ditch, involves municipal works, may obstruct traffic, destroys road, underground pipeline etc..

In view of the above situation, the present invention provides a ground-mounted excavation-free guy wire foundation, which comprises a box body filled with heavy objects and an anchor rod 4; the box body is arranged on the ground, and the gravity of the weight and the box body and the friction force with the ground can be used as the load for resisting the pulling force on the pull wire; the anchor rod 4 penetrates through the anchor rod hole 3 on the bottom 1 to be wedged underground and used for fixing the box body and preventing the box body from sliding due to the tension of a tension line; the stay wire joint 5 is connected to the outer side of the side part 6, a stay wire hole 7 is arranged on the stay wire joint 5, one end of a stay wire is connected to the stay wire hole 7, and the other end of the stay wire is connected to a tower column of a stay wire tower.

In this embodiment, the bottom 1 of the box body is made of a rectangular steel plate, and the steel plate is provided with anchor holes 3. The 4 side parts 6 of the box body are all assembled into a rectangular frame structure by adopting steel pipes through methods such as welding and the like, the number of the steel pipes is preferably dense enough, the box body is convenient to load heavy objects, and the heavy objects are prevented from falling. The adjacent side parts 6 are connected through bolts.

During construction, green belts and other places which do not influence traffic are selected as far as possible to set the stay wire points, the box body is placed, the stay wire joint 5 faces the tower column, the bolts between the side parts 6 are unscrewed, and the 4 side parts 6 are laid flat. The anchor rod 4 is inserted into the anchor rod hole 2 on the bottom 1, and the anchor rod 4 is wedged into the ground by hammering or the like. After heavy objects such as sand bags, balancing weights and the like are piled on the bottom 1, 4 side parts 6 are erected, bolts between the side parts 6 are screwed, and the temporary building of the stay wire foundation is completed.

The technical scheme provided by the invention avoids foundation pit operation construction, concrete does not need to be poured, the used tools are extremely simple, large-scale machinery, hydraulic equipment, power supplies and the like are not needed, the construction is rapid and convenient, the processing requirements of the box body, the anchor rod 4 and other parts are not high, the cost is low, the heavy objects placed in the box body can be obtained from local materials, and the heavy objects are treated on the spot after being used. Because this technical scheme need not to excavate the foundation ditch, consequently do not receive restriction such as rock, hard soil, groundwater, mire, reduced construction safety risk, improved constructor's security, shortened the engineering time, improved the efficiency of salvageing of circuit. The technical scheme breaks through the limitation of geological conditions on the point selection of the stay wire foundation, enlarges the application range of the stay wire foundation and reduces the disturbance damage to the environment. The number of the stay wire foundations can be set according to construction requirements, and the arrangement is flexible.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.

Claims (9)

1. A ground installation excavation-free guy wire foundation is characterized by comprising a box body filled with heavy objects and an anchor rod (4); the box body is arranged on the ground; one end of the pull wire is connected to the box body, and the other end of the pull wire is connected to the tower column; the box body is provided with an anchor rod hole (2), and the anchor rod (4) penetrates through the box body and is fixed underground.

2. The ground-mounted trenchless pull-string foundation of claim 1 wherein the box comprises a bottom portion (1) and four side portions (6) connected to each other; the bottom (1) is located on the ground, and the side parts (6) are sequentially connected end to form a cavity.

3. A ground-mounted trenchless pull-cord foundation as claimed in claim 2 wherein the anchor (4) comprises an anchor head (3) and a shank; the bottom (1) is provided with an anchor rod hole (2), the anchor head (3) is located in the box body, and the rod body penetrates through the anchor rod hole (2) and is fixed underground.

4. A ground-mounted trenchless pull-string foundation as claimed in claim 3 wherein the anchor eye (2) is located on a side of the base (1) remote from the pull-string.

5. The ground-mounted trenchless pull-cord foundation of claim 2 further comprising a pull-cord connector (5); the stay wire joint (5) is connected with the outer side of the side part (6); one end of the stay wire is connected with the stay wire joint (5).

6. The ground-mounted excavation-free stay wire foundation as claimed in claim 5, wherein a stay wire hole (7) is formed in the stay wire joint (5), and one end of the stay wire is connected with the stay wire hole (7).

7. The ground-mounted excavation-free guy wire foundation of claim 6, further comprising a connecting member, one end of which is connected to the guy wire and the other end of which is connected to the guy wire hole (7).

8. The ground mounted trenchless pull-string foundation as claimed in claim 2, wherein the structure of the bottom portion (1) and the side portions (6) is a plate structure or a frame structure.

9. The ground-mounted trenchless pull-string foundation of claim 2 wherein the material of the bottom portion (1) and the side portions (6) comprises steel or an aluminum alloy.

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