Drilling Hydraulic Enlarging Net Cage Cast-in-situ Anchor Construction Head and Construction Method

Abstract

The invention provides a construction machine head and a construction method for a drilling hydraulic enlarged mesh cage cast-in-place anchor body used for natural slope or artificial slope reinforcement. The wire mesh cage mounted on the drilling construction head can expand and support the nearby wire mesh cage through the hydraulic jacking heads on the four sides of the construction head when it is lifted on the drill bit after drilling into the slope surface to the set depth. Therefore, the anchoring area and reinforcement area of ​​the anchoring body can be greatly increased, the anti-sliding force of the slope is enhanced, and the slope instability caused by the reduction of the internal shear strength of the slope or the destruction of the stress balance of the slope due to the influence of external forces is avoided. , Debris flow and other geological disasters have improved the stability and safety of the slope. The invention integrates drilling, grouting, laying wire mesh cages and expanding mesh cages, and can be applied to natural soil slopes or newly excavated and filled artificial slopes to improve the anti-sliding safety factor and reduce geological disasters risk. The construction method is simple, the operation is convenient and the efficiency is high.

Description

technical field [0001] The invention provides a construction machine head and a construction method for a drilling hydraulic enlarged mesh cage cast-in-place anchor body used for natural slope or artificial slope reinforcement. The wire mesh cage mounted on the drilling construction machine head can expand the nearby wire mesh cage during the lifting process of the drill bit after drilling into the slope surface to the set depth, thereby greatly increasing the anchoring area of ​​the anchoring body and increasing the strength. The area of ​​ribs increases the sliding resistance of the slope, avoids geological disasters such as slope instability and debris flow caused by the reduction of the internal shear strength of the slope or the impact of external forces destroying the stress balance of the slope, and improves the slope's stability. Stable and safe. The invention integrates drilling, grouting, laying wire mesh cages and enlarging mesh cages, and can be applied to natural...

AI Technical Summary

Problems solved by technology

In the current slope reinforcement measures, methods such as slope grids and anchor bolts are usually used for reinforcement. However, under the long-term rain erosion, hollowing out, and gravity creep and slippage, the grid blocks are prone to fall off and damage. , the bolt is also prone to failure due to corrosion

At the same time, because the anchor holes drilled by the current drilling rig are generally cylindrical and have a small diameter, the anchoring body formed by it has a small pull-out resistance and a large deformation

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