At last, disasterprotection measures for Xi 'an ground fissures are simply discussed in this paper.
最后，本文对西安地裂缝灾害的防治措施进行了一些简单的探讨。
2
In this paper the reasons for the ground pressure appearance of 690 level in Tongkuangyu mine are analysed. It is hoped that gives reference for ground disasterprotection.
本文对铜矿峪矿690中段地压显现的原因进行分析，希望给地压灾害预防提供参考。
3
Through analyzing on actual examples, expounds the significance of strengthening mine geology work in disasterprotection and control and basic action to coal mine safety production.