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Component for fixing anchor bar/anchor cable head and method for slope stabilization

A technology for fixing anchors and anchor cables, applied in excavation, infrastructure engineering, sheet pile walls, etc., can solve the problems of soil stress not being compensated in time, cracks in concrete, and increased deformation of excavation slopes, etc. The effect of preventing landslides, avoiding shrinkage of anchors and broken wires, and improving bearing capacity

Inactive Publication Date: 2005-06-01
李炳奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common disadvantage of the latter two methods is that the released soil stress cannot be compensated in time, which increases the deformation of the excavation slope and increases the risk of construction; moreover, the formed concrete frames are all statically indeterminate structures. There is stress propagation inside, which is not conducive to earthquake resistance
However, during use, the concrete near the side and bottom faces of the cross beam 1 is prone to cracks, which reduces the overall bearing capacity of the member and has poor durability.

Method used

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  • Component for fixing anchor bar/anchor cable head and method for slope stabilization
  • Component for fixing anchor bar/anchor cable head and method for slope stabilization
  • Component for fixing anchor bar/anchor cable head and method for slope stabilization

Examples

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Effect test

specific Embodiment 1

[0027] For the components of the fixed anchor rod / cable head of the present invention, please refer to image 3 , Figure 4 and Figure 5 , which includes a cross beam 1, a backing plate 4, an anchor nut 5 and an anchor screw 6. The head of the anchor rod / anchor cable refers to one end of the tensioned steel of the anchor rod / anchor cable fixed on the ground. The cross beam 1 has four arms, and the roots of each arm gather at the intersection position of the cross beam 1. The head extends outward to form a cross-shaped beam, and the cross-section of the four arms is trapezoidal, and each side of the cross-sectional trapezoid gradually decreases along the root of each arm toward the head of each arm. The cross beam 1 is a PC concrete prefabricated component manufactured in a factory and a simple factory on the construction site, where PC means that prestressed steel is used in the prefabricated component, and the steel includes steel strands and steel bars. A concave notch 2...

specific Embodiment 2

[0028] For the components of the fixed anchor rod / cable head of the present invention, please refer to Figure 6 , it can also be the other unchanged in the specific embodiment one, only the upper edge of the cross beam 1 is chamfered or a curved surface; the edge of each arm connection at the central intersection position of the cross beam 1 is also a circular arc surface. Such a structure increases the bending section moment of the cross beam 1 , thereby reducing the bending tensile stress on the bottom surface of the intersection position of the cross beam 1 , and cracks are less likely to occur at the intersection position of the cross beam 1 . Moreover, such a structure is very beautiful, and in the case of rainwater, the rainwater slides down along the chamfer and the arc surface, avoiding water accumulation, and it is also a method for fixing the head of the anchor rod / cable that can prevent water accumulation member.

specific Embodiment 3

[0029] For the components of the fixed anchor rod / cable head of the present invention, please refer to Figure 5 , it is also possible that the bottom surface of the cross beam 1 in the specific embodiment 1 or 2 is provided with a protruding tooth-shaped structure 8 . The function of the tooth-shaped structure 8 is to improve the close contact between the bottom surface of the cross beam 1 and the slope surface, increase the friction between the cross beam 1 and the slope surface, make the components fixing the head of the anchor rod / anchor cable difficult to move, and improve its stability . The protruding tooth-shaped structure 8 can be a regular protuberance or an irregular protuberance, as long as the tightness and frictional force between the bottom surface of the cross beam 1 and the slope surface can be increased.

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Abstract

The present invention discloses one kind of anchor bolt / cable head fixing member and the method of using the member in protecting slope, and aims at providing one kind of fixing member with high bearing capacity and less possibility of generating crack and capable of being re-stretched for slope protection. The anchor bolt / cable head fixing member includes rood beam, backing plate, anchor screw and anchor nut; and features that the rood beam has notched part in the bottom, the backing plate is embedded into the notched part, and the stepped anchor nut is inserted into the hole in the backing plate center. When it is used in slope fixing, the anchor bolt / cable is penetrated through the anchor screw before the anchor screw is screwed into the anchor nut for stretching and the anchor nut is turned to regulate tension.

Description

technical field [0001] The invention relates to a ground bearing component used in civil engineering such as transportation, water conservancy, construction, etc., in particular to a component for fixing the head of an anchor rod / anchor cable. The present invention also relates to a method for using the component for fixing the head of the anchor rod / anchor cable to stabilize the side slope. Background technique [0002] In civil engineering in highways, high-speed railways, water conservancy, construction and other fields, in order to prevent landslides and ensure the stability of slopes, effective protective measures must be taken to prevent landslides. The current protection and reinforcement methods mainly include the following four methods: The first method is to spray concrete directly on the slope. This method only has the effect of preventing the soil and stones on the surface of the slope from slipping, but it does not have the effect of preventing landslides, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/74E02D17/20
Inventor 李炳奇矢富盟祥
Owner 李炳奇
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