Grouting method for anchoring with polymer

摘要

A grouting method for anchoring with polymer is provided, wherein the method includes steps of: a) rod body processing; b) tying up a geotextile bag and grouting tubes on the anchoring rod body; c) hole drilling; d) polymer grouting: I. hole sealing grouting; II. anchoring grouting. The present invention has advantages of a sufficient adaptability, non-water reaction, convenient and fast construction, being economic, a high strength and a high durability. An expansive polymer material has an obvious compacting effect on soil, and is capable of increasing a friction force between a grout and a base; the water-proofing polymer material is an impermeable material for a steel rod body, and is of benefit to anti-corrosion and durability of the rod body; a solidifying time of the polymer material is short and no maintenance is needed in such a manner that construction periods are shortened.

主权项

1. A grouting method for anchoring with polymer, comprising steps of:
a) processing a rod body; b) tying up a grouting tool on the anchoring rod body, wherein the grouting tool is tied up on an end of the rod body, the grouting tool comprises a hole sealing grouting unit, and an anchoring grouting unit; c) drilling holes, wherein the holes are drilled on positions needing supporting according to a design, and the rod body is provided in the hole; d) grouting for sealing the hole, wherein a two-component expansive polymer grouting material is injected through the hole sealing unit with an injection device, the two-component expansive polymer expands and solidifies rapidly after a chemical reaction happens in such a manner that the holes are sealed; and e) grouting for anchoring, wherein the polymer grouting material is injected through the anchoring grouting unit with the injection device, the polymer grouting material expands to compact soils around a tube wall for being fully intergraded with a rock or soil mass and forming a polymer anchoring structure.