A waterproof anchoring agent for water-containing soft rock and a method for preparing the same

By preparing a waterproof anchoring agent, the problem of low bonding stiffness of the anchor cable body in the surrounding rock of muddy roadways was solved, achieving efficient anchoring and pre-tightening force application, and improving the utilization rate of the anchor cable and the surrounding rock control effect.

CN118271027BActive Publication Date: 2026-07-24CCTEG COAL MINING RES INST
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Patent Information

Application Number
CN202410291238.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2026-07-24
Estimated Expiration
2044-03-14

AI Technical Summary

Technical Problem

The anchor cable body and traditional resin anchoring agent have low bonding stiffness in muddy roadway surrounding rock, making them prone to sliding deformation and unable to apply high preload, resulting in low anchor cable utilization and inability to efficiently control roadway surrounding rock deformation.

Method used

A waterproof anchoring agent is prepared, comprising component A and component B. Component A consists of resin putty, accelerator and coupling agent, and component B consists of benzoyl peroxide, chlorobenzene and polyether polyol. The two components are mixed through a specific process and are used for anchoring water-bearing soft rocks.

Benefits of technology

It improves the bonding stiffness of anchor cables in muddy roadway surrounding rock, enables the application of high preload, improves anchor cable utilization, and achieves efficient control of roadway surrounding rock.

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Abstract

The present application relates to the technical field of anchoring agent, and particularly relates to a waterproof anchoring agent for water-containing soft rock and a preparation method thereof, the waterproof anchoring agent comprises A component and B component, the A component comprises resin mortar, accelerator and coupling agent, the resin mortar comprises modified unsaturated polyester resin, calcium carbonate, dolomite and mica powder, the modified unsaturated polyester resin comprises palmitoleic acid monoglyceride and conjugated triene pyridine; the B component comprises benzoyl peroxide, chlorobenzene, diphenyl and polyether polyol, the polyether polyol is prepared by ring-opening polymerization of bisphenol A introduced into propylene oxide; the waterproof anchoring agent prepared by the present application overcomes the problems that the anchorage cable body and the traditional resin anchoring agent have low bonding stiffness and are easy to slide and deform in the mudified roadway, so that high pre-tightening force cannot be applied, the utilization rate of the anchorage cable is low, and the anchorage cable cannot realize efficient control of the deformation of the roadway surrounding rock; the waterproof anchoring agent can be used for efficient anchoring of the anchorage cable in the mudified roadway surrounding rock.
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