Combining with a tunnel construction case, an ordinary method of ascertaining Optimum hole depths in small exploration tunnel drivage is discussed.
结合一坑道施工实例，论述了小型探矿坑道确定最优炮眼深度的一般方法。
The result of tunnel construction show that the exploration achievement is reliable.
隧道施工结果表明，勘探成果的可信度较高。
The paper introduces method, technique and application effect of high density resistivity method in exploration laws of recharge, runoff, drainage of tunnel water burst.
该文主要介绍了应用高密度电法，在勘察隧洞涌水，寻找涌水的补给、径流、排泄规律时的方法技术及应用效果。
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