告成矿砌碹交岔点的破坏原因及维修加固

Destruction and Its Maintenance and Reinforcement of Arching Crossing in Gaochen Colliery

本文通过对砌碹交岔点破坏原因的分析,提出较适应砌碹交岔点维修的方法,即对交岔点采取围岩注浆加固,用“内补外固”法修复。

The paper has made a analysis of destruction at arching crossing, raised the corresponding manitenance method - - reinforcing by adjoining rock grouting at crossing.