A tree root-like anchor rod and an installation method

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...

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

Images