Abstract: With the increasing depth of mine well, deep soft rock chamber group stability control has become a troubled engineering problems at home and abroad. In order to better control the large section chamber group damage problems, combining the four levels of Hegang Mining Xing'an mine wells pump suction chamber group of large section engineering example, through on-site investigation and theoretical analysis, the destruction main factors of Xing'an mine pump suction wells of large section chamber group was obtained. Based on these factors, the supporting technology of anchor net spray + Anchor + corner bolt is put forward, and has been verified in the project.

Key words: Deep Mining Large Section Anchor Net Spray + Anchor + Corner Bolt Coupling Supporting Technology