1·Through the X-ray diffraction analysis and point loading strength test, intrinsic causes for the rockburst in some sandy mudstones in Erlang mountain highway tunnel has been ascertained.
通过X射线粉晶衍射成分分析，结合岩石点荷载强度试验研究，查明国内外首次发现的此隧道部分砂质泥岩发生岩爆活动的内在原因。
2·Rockburst is one of the disasters in the course of deep deposit exploitation.
岩爆是深井开采中的主要灾害之一。
3·Rockburst tendency is one of the important indices for the safety evaluation of deep mining engineering.
岩爆倾向性是评价地层深部工程安全性的一个十分重要的指标之一。