Soil body anchor rod construction process and anchor rod member thereof

Abstract

The invention discloses a working craft of solid body anchor bar, which comprises the following steps: A, drilling with anchor bar machine; feeding water through self high pressure of drilling rod; reaching to high pressure on the drilling place for water flow; forming cutting for soil layer; B, setting the drill as zigzag type; connecting the drill and prestressed hank anchor solid end with common bearing or pressure bearing; supplementing a slip casting pipe; drilling into designing depth as the drill; C, taking up the drilling rod; leaving the prestressed hank anchor solid end, slip casting pipe and drill at the bottom of the drilling hole; proceeding slip casting or cement paste or cement sand paste through the casting pipe; reaching the designing demand; forming the inherent stress anchor rod. This method can increase efficiency and decrease cost, which can be used to breast, continuous wall under floor and so on working craft.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a construction technology for retaining soil, an underground continuous wall, and foundation pit support, which can resist tension and pullout in the soil layer to form anchor rods. Background technique [0002] The prior art closest to the present invention is a title: the patent of the soil anchor rod construction method and the anchor rod assembly used therefor, which discloses a kind of soil anchor rod construction method, and its steps are: The way of disassembly is to assemble the anchor rod assembly with the anchor bar to the front end of the drill pipe; while drilling the hole in the soil by rotating the above drill rod, bring the above anchor rod assembly into the soil until the specified Position; through the hollow channel in the above-mentioned drill pipe, pour solidifying liquid into the bottom of the hole to form an anchoring head; disassemble the front end of the a...

AI Technical Summary

Problems solved by technology

This invention adopts the construction technology of grouting and lowering the anchor rod while drilling, which simplifies the process and improves the efficiency; the existing problem is that the anchor tendon and the drill pipe are often entangled during the construction process, and the anchor rod cannot be drilled after the occurrence Should reach the depth, the consequences are serious and cannot be remedied, resulting in an excessive safety factor in the design process and serious waste

In addition, drill pipe grouting, when the drill pipe is pulled out, the cement slurry shrinks, and the missing amount is replenished as it is lifted, the quality effect cannot be checked, and the human control factor is too large, resulting in uncertain quality conditions and a huge waste of cement slurry

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