Deformation mechanism of surrounding rocks and key control technology for a roadway driven along goaf in fully mechanized top-coal caving face

• 来源期刊: 煤炭学报（英文版）
• 学科: 工学
• 年，卷（期）: 2003,（1）
• 页码范围: 28-32
• 页数: 5页
• 分类号: TD8
• 语种: 英文

摘要

The variation of the stress in the bolted surrounding rocks structure of the roadway driven along goaf in a fully mechanized top-coal caving face with moderate stable conditions are studied by using numerical calculation. The essential deformation characteristics of the surrounding rocks in this kind of roadway are obtained and the key technology of bolting support used under these conditions is put forward.