Uncompacted location and grouting saturation degree in the zone of anchorage bar are the two main parameters for judging rock bolts quality.

摘锚固体内不密实位置和灌浆饱和度是评价锚杆质量参数。

In the case of mudstone to be a source rock, the uncompacted mudstone would have a strong capability of hydrocarbon concentation sealing to seal gas in diffusive phase.

本文在研究盖层封闭油气机理基础上,分析了欠压实泥岩在封益油气中作用。