hard-rock drilling的意思|示意

The paper describes a waterjet-aided drill which, successfully developed by Changsha Institute of Mining Research, is useful in laboratory and capable of drilling holes both in soft and hard rock.

本文介绍了长沙矿山研究院研制成的一种实验室用并适用于钻凿软至硬岩孔的连续水射流钻机及与其相适应的两种新型水力-刮刀钻头。

Drilling results display that electroplated weakly-bonded diamond bit can effectively solve the problem of slipping while drilling in hard, compact rock.

钻进结果显示，采用电镀弱包镶金刚石钻头，能够比较有效地解决电镀金刚石钻头的“打滑”问题。

The revolving-drilling technique is one of the new-type and effective methods for hard rock drilling.

冲旋钻井技术是一种新型、高效钻进硬地层的方法。

The results of field tests proved that PDC anchor bit is ideal in mid hard rock drilling.

现场试验结果表明，PDC锚杆钻头是钻进中硬岩层的理想钻头。

The rotary percussion drilling technology have the advantage to raise the hard rock well drilling speed effectively, prevent the borehole deviation in the hard rock or the complicated geologic strata.

旋转冲击钻井技术依靠冲击器产生冲击载荷并作用在钻头上来破碎岩石。该技术能够有效提高硬地层钻井速度，能够防止硬地层及复杂地层钻井中的井斜问题。

Hose bit can be divided into cutter teeth and cone teeth, cone teeth for weathering of soft rock strata, and permafrost, cutter teeth used for drilling hard bedrock.

筒式钻头的切削具可分为截齿和牙轮，截齿筒状钻头用于风化软岩及永冻土地层钻进，牙轮筒式钻头用于硬质基岩钻进。