Extremely broken soft rock roadway forming construction method

• Main Authors: SUN MAORU, ZHANG DIANFEI, WANG XIAOPING, ZHANG XUN, HUANG XUXU, SHI ZONGSHEN, CAO GUANGYONG, PAN RUI, NI XIANJIE, CHENG HUA
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The invention provides an extremely broken soft rock roadway forming construction method. The construction method comprises the following steps that S1, specific parameters of a roadway to be exploited are determined; s2, a ground grouting station is arranged on the ground; s3, drilling holes in the rock layer position where the roadway is located through a ground grouting station, installing grouting pipes in the drilled holes, and conducting grouting pre-reinforcement on the extremely-broken soft rock through the grouting pipes; s4, according to the ground grouting reinforcement condition, a fully-mechanized coal winning machine tunneling or shield tunneling mode is selected, and tunneling is conducted on a roadway to be exploited; s5, the roadway is supported; s6, monitoring the deformation of the surrounding rock of the newly excavated roadway, and grouting and reinforcing the surrounding rock according to the monitoring condition of the deformation of the surrounding rock; and S7, according to the roadwa