Constant-resistance anchor cable structure and anchoring method

A technology of anchor cable and resistance body, which is applied in the direction of earth drilling, bolt installation, mining equipment, etc., to achieve high safety effect

Active Publication Date: 2020-07-28
BEIJING ZHONGKUANG INNOVATION ALLIANCE ENERGY & ENVIRONMENTAL SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a constant resistance anchor cable structure and anchoring method, which can solve one or more problems of the existing anchor cable structure

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  • Constant-resistance anchor cable structure and anchoring method
  • Constant-resistance anchor cable structure and anchoring method
  • Constant-resistance anchor cable structure and anchoring method

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Embodiment Construction

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0046] A constant resistance anchor cable structure is provided in the embodiment of the present invention, refer to figure 2 and image 3 , the anchor cable structure includes a sleeve 1, a cable body 2, an anchor 3, a constant resistance body 4, and a pre-tightening force applying device. The sleeve 1 is a through-tube structure, including a first sleeve section 11 and a second sleeve section 12 connected to each other. T...

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Abstract

The invention provides a constant-resistance anchor cable structure and an anchoring method. The constant-resistance anchor cable structure is applied to rock mass support, the anchor cable structurecomprises a sleeve, a cable body, an anchorage device, a constant-resistance body and a pretightening force applying device, wherein the sleeve comprises a first sleeve section and a second sleeve section, a plurality of annular protrusions are distributed on the inner wall of the second sleeve section in the axial direction, the movable end of the cable body is located in the first sleeve section, the fixed end extends out of the sleeve and can be fixed in a rock body, the anchorage device is fixed to the outer wall of the cable body and located in the sleeve, the constant-resistance body islocated in the sleeve and arranged outside a lock in a sleeved mode, and the pretightening force applying device is installed on the sleeve and used for applying pretightening force to the constant-resistance body to enable the constant-resistance body to abut against the annular protrusions, so that reverse pulling force is provided for surrounding rocks, control over the surrounding rocks is achieved, and it is guaranteed that destructive accidents are not prone to happen when the surrounding rocks deform greatly.

Description

technical field [0001] The invention relates to the technical field of anchoring, in particular to a constant resistance anchor cable structure and an anchoring method. Background technique [0002] Since the late 1950s, my country began to use anchoring technology in mine roadways. The anchoring technology has many advantages such as low support cost, simple manufacturing process, and stable support effect, and has been widely used and recognized in rock mass support. Rapid development. [0003] The roof support of coal mine roadways is mostly carried out with anchor cables. The traditional anchor cables use prestressed steel strands, one end is fixed on the roof rock wall, and the other end is anchored in the stable rock formation through anchoring agents, providing radial and tangential constraints. Improve the horizontal bearing capacity of the rock strata, and achieve the purpose of controlling the deformation and caving of the roof of the roadway. [0004] However, wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D20/02
CPCE21D20/025E21D21/0033E21D21/008E21D21/006
Inventor 何满潮王琦侯世林王亚军
Owner BEIJING ZHONGKUANG INNOVATION ALLIANCE ENERGY & ENVIRONMENTAL SCI RES INST
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