关键词: 锚钻一体, 高速掘进, 一体化支护, 护表涂层自动喷涂, 变形监测

Abstract: Manual operation for traditional anchor net and cable support is cumbersome and ineffi‐ cient. The layingof metal mesh is difficult to automate，which has become a key bottleneck restricting the ef‐ ficiency and safety of comprehensive mining，greatly limits the further improvement of underground excava‐ tion efficiency. In order to solve the problem of low efficiency in underground coal mine，after analyzing the tunnel excavation process，it was determined that anchor support and metal mesh setting are the main fac‐ tors affecting the speed of tunnel excavation. Therefore，a high-speed excavation technology based on inte‐ grated anchor drilling equipment was proposed. This process is based on the integrated support technology of anchor drilling，which realizes the continuous operation of six independent processes including anchor drill‐ ing，drill rod handling，adding anchor agent，anchor rod setting，anchor agent mixing，and anchor rod pre tightening. With the core technology of automatic spraying of surface protection coating，automatic spraying roof protection is used instead of metal mesh roof protection to achieve automatic operation of underground tunnel roof protection. Accurate monitoring of tunnel deformation in low light and high dust environments has been achieved through dynamic monitoring technology for tunnel deformation. The industrial application underground shous that the new high-speed excavation technology has achieved continuous operation of un‐ derground roadway support while ensuring the safety of underground operations. It can reduce the installa‐ tion period of anchor rods by 44.2%，reduce the number of simultaneous operators by 66.7%，and increase the excavation speed of tunnels by 31.8%，greatly promoting the development of underground high-speed excavation technology.

Key words: integrated anchor drill, high-speed excavation, integrated support, automatic spraying of protective coating, deformation monitoring