Broken type soft rock roadway supporting device and method based on concrete filled steel tube support

• Main Authors: ZHANG SHICHUAN, LIU JUNXI, MENG WENHANG, SHEN BAOTANG, ZHANG BUCHU, QU GUANGLONG
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a broken type soft rock roadway supporting device and method based on a concrete filled steel tube support, and relates to the technical field of underground mines. The supporting method comprises the steps that firstly, a plurality of hollow grouting anchor rods are placed in surrounding rock of a roadway, and advanced grouting reinforcement supporting is carried out; then concrete is sprayed to the surrounding rock of the roadway to form a concrete layer, and broken rocks on the surface of the roadway form a whole through the concrete layer; then, an anti-bending early-strength concrete filled steel tube support structure is erected at a certain distance from a plastic plate; early-strength concrete is poured into the support, anti-bending steel bars are arranged on the outer side of the support in the circumferential direction of the roadway, and an anti-bending early-strength reinforced concrete arch body with a certain thickness is constructed between the plastic plate and the ant