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A tree root-like anchor rod and an installation method

A bolt and tree root technology, which is applied in the installation of bolts, excavation, earthwork drilling and mining, etc., can solve the problems that the stress and strain cannot be grasped in real time, the failure of the bolt support system, and the low elongation of the bolt, etc., to achieve automation High degree, reduce welding, increase the effect of contact area

Active Publication Date: 2019-09-27
昆山瑾晖城市建设基金会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional bolt is easy to be deformed and pulled under the ultimate stress due to the low elongation of the bolt itself when it is subjected to deformation of the surrounding rock, deep fracture deformation of the rock mass, or impact load (such as earthquake action or rockburst). broken, resulting in the failure of the bolt support system
The internal stress and strain of traditional anchors cannot be grasped in real time, and emergency response cannot be made when the anchor fails

Method used

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  • A tree root-like anchor rod and an installation method
  • A tree root-like anchor rod and an installation method
  • A tree root-like anchor rod and an installation method

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Embodiment Construction

[0035] The present invention is described in detail below.

[0036] Such as figure 1 , 2 As shown, the imitation tree root type bolt of the present invention mainly includes three parts, the main part of the bolt, the extensible part of the bolt and the self-checking system.

[0037] The main part of the anchor rod includes a main anchor body 5 and a sleeve 7 sleeved on the outside of the main anchor body 5. The main anchor rod 5 is provided with five sets of connecting parts connected to the sleeve 7. The connecting parts include sleeves on the main anchor rod 5 The round platform casing 10 on the top, the two ends of the round platform casing 10 are fixedly connected with the spring steel sheet 9 respectively, and the material of the spring steel sheet 9 is 65Mn, such as image 3 As shown, the two ends of the spring steel sheet 9 have nut reserved holes respectively, and one end is fixedly connected with the round table sleeve 10 by threads, and the other end is riveted wi...

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PUM

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Abstract

The invention discloses a tree-root-like anchor rod and an installation method. The anchor rod comprises a main anchor rod and a sleeve body; one end, extending into soil mass, of the main anchor rod is fixedly connected with a fixed sleeve; the fixed sleeve is sleeved with a movable sleeve; the movable sleeve is sleeved with a spring; the spring is compressed and fixed between the fixed sleeve and the movable sleeve; the lower end of the fixed sleeve is fixedly connected with a base sleeve; an outward openable strut section is arranged between the movable sleeve and the base sleeve, and two ends of the strut section respectively prop up the movable sleeve and the base sleeve; and a clip strip which can clamp the movable sleeve and the base sleeve is arranged at the outer wall of the movable sleeve in a penetrating and inserting way, strain gages are attached to the outer wall of the movable sleeve and the inner wall of the sleeve body inlaying into the soil mass, the clip strip and the strain gages are all connected with a control device, and a wire ring is twined on the clip strip. The elongation of the anchor rod is increased, thus the anchor rod can adapt to sudden disaster, can automatically monitor the deformation of an anchorage body and implements an emergency response so as to effectively prevent the anchorage body from falling off from the soil mass.

Description

technical field [0001] The invention relates to a disaster protection facility for slopes, roadways and tunnels and an installation method thereof, in particular to an imitation tree root bolt and an installation method thereof. Background technique [0002] Under the influence of human activities and natural disasters, landslides often occur in mines, roadways, and slopes. At present, bolt support is widely used in geological engineering. Bolt support is to change the mechanical state of the surrounding rock itself through the bolt inside the surrounding rock, forming an integral and stable rock belt around the soil, and using the bolt and the surrounding rock to work together to achieve the purpose of maintaining slope stability . [0003] At present, the traditional bolt is easy to be deformed and pulled under the ultimate stress due to the low elongation of the bolt itself when it is subjected to deformation of the surrounding rock, deep fracture deformation of the rock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/02E21D20/00E02D17/04E02D17/20
CPCE02D17/04E02D17/20E21D20/00E21D21/0026E21D21/008E21D21/0093E21D21/02
Inventor 梅岭翟宇丁夏陈虞祥
Owner 昆山瑾晖城市建设基金会
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