摘要
介绍了采区概况及初次放顶的方案选择 ,并详细说明了实施放顶的步骤及放顶过程中相关措施 ,实际应用中效果良好。
The survey of mining area and plan selection for first roof caving are introduced, and the step and corrective measures of roof caving are also explained in detail.The actual use is good.
出处
《煤炭技术》
CAS
2003年第11期38-40,共3页
Coal Technology
