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Anchoring split adjustable anchor rod filled in explosion expanded cavity

An adjustable anchor rod technology, which is applied in the installation of anchor rods, mining equipment, earthwork drilling and mining, etc., can solve the problems of roadway deformation, reduce hard rock roadway and soft rock roadway, and support difficulty, and achieve high connection strength, Simple structure and wide support range

Inactive Publication Date: 2013-12-25
SHANXI LUAN ENVIRONMENTAL ENERGY DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous extension of the opening depth, the hard rock roadway is prone to "rock burst", and the soft rock roadway is easy to cause roadway deformation, and the support is extremely difficult
The usual bolt support, due to the limitation of the width of the roadway, the support range is small, usually only about 2.0m, it is difficult to support effectively
[0003] The two sides of deep hole blasting in rock roadway can effectively transfer the top pressure on both sides of the roadway to the deep part of the rock roadway, which can reduce the probability of "rock burst" in hard rock roadway and slow down the deformation of soft rock roadway. Useful ways

Method used

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  • Anchoring split adjustable anchor rod filled in explosion expanded cavity
  • Anchoring split adjustable anchor rod filled in explosion expanded cavity
  • Anchoring split adjustable anchor rod filled in explosion expanded cavity

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] refer to Figure 1-5 , the specific implementation method adopts the following technical scheme: filling and anchoring split adjustable anchor rods in the explosion expansion cavity, including anchor rod 1, connecting rod 2 and fastening rod 3, and the two ends of the connecting rod 2 are connected with anchor rod 1 and fastening rod respectively. The solid rod 3 is provided with pads and nuts on the thread at the end of the fastening rod 3 .

[0019] It is worth noting that the anchor rod 1 is a rod at the anchoring end of the explosive charge, with a length of 3000mm, a diameter of 50mm, and a wall thickness of 5mm; ~1000mm; the other end is provided with an external thread.

[0020] It should be noted that the charging end of the ancho...

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Abstract

The invention discloses an anchoring split adjustable anchor rod filled in an explosion expanded cavity and relates to an anchor rod. The anchor rod comprises an anchoring rod, a connecting rod and a fastening rod. Two ends of the connecting rod are connected with the anchoring rod and the fastening rod respectively, and a cushion block and a nut are arranged on threads at the tail end of the fastening rod. The anchoring rod is a rod piece at the charging explosion anchoring end. The charging end of the anchoring rod is cut to form four seams, namely four plates with seams, inner threading and outer threading are arranged at two ends of the connecting rod respectively, and the length of the threads is 100-300 mm. Inner threads are arranged at one end of the fastening rod and connected with the outer threading of the connecting rod. Outer threads are arranged at the other end and connected with a tensioning middle nut. The anchor rod is simple in structure, high in rod body connecting strength and wide in supporting range.

Description

technical field [0001] The invention relates to an anchor rod, in particular to a separate adjustable anchor rod for filling and anchoring in an explosive expansion cavity. Background technique [0002] There are two types of rocks often encountered in the supporting surrounding rock of coal mine rock roadway, one is hard rock and the other is soft rock. With the continuous extension of the opening depth, the hard rock roadway is prone to "rock burst", and the soft rock roadway is easy to cause roadway deformation, and the support is extremely difficult. The usual bolt support is limited by the width of the roadway, and the support range is small, usually only about 2.0m, which is difficult to support effectively. [0003] The two sides of deep hole blasting in rock roadway can effectively transfer the top pressure on both sides of the roadway to the deep part of the rock roadway, which can reduce the probability of "rock burst" in hard rock roadway and slow down the deform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00
Inventor 梁为民王东飞褚怀保王金星吕小师张文平杨小林陈峰宾
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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