It is very important to use a core to analyze the development and activity of faults in the case of bedrock which is covered by soil and water.

• 在工程区基岩被第四纪土、江水等覆盖的情况下,如何充分利用好获得的钻孔岩芯来分析断层的发育和活动性情况就显得非常重要。