Layout structure for supporting rock pillar formed by simultaneous excavation of two adjacent projects

• Main Authors: LIU HUANXIN, LIU XINGQUAN, LIU ZHEN, QI ZHAOJUN, WANG XI, WU QINZHENG, AHN JI-HAE
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model provides a laying structure for supporting a rock pillar formed by simultaneous excavation of two adjacent projects. The laying structure comprises a plurality of anchor rod supporting units penetrating through the two sides of the rock pillar and an anchor net arranged on the periphery of the outer wall of the rock pillar. The anchor rod supporting units located at different positions of the rock pillar are perpendicular to the vertical joint fissures in the rock pillar. The anchor rod supporting unit comprises a deformed steel bar body and torque nuts arranged on the two sides of the deformed steel bar body, and the deformed steel bar body and the torque nuts are connected through threads. The anchor rod supporting units penetrate through the two sides of the rock pillar, it is guaranteed that the anchor rod supporting units are perpendicular to the vertical joint fissures in the rock pillar, the rock pillar is supported, inward extrusion force is generated on the rock pillar, and the rock