bore plug

There are not detailed specifications and regulations about verifying and evaluating core sample in base bore-hole sampling,so it is necessary to discuss the applicability,verification index and quality evaluation about bore-hole core sample verification.

有关路面基层钻孔取样后芯样的检验和评定方法,在现行规范中没有具体的说明和规定,故有必要对钻孔芯样检验方法的适用性、检验指标及质量评定进行探讨,以供同行参考。

Verification Method and Quality Evaluation of Base Bore-hole Sampling

路面基层钻孔取样的检验方法与质量评价

Designed for wall drilling of concrete block or brick without using water.

在无水环境下，适用于混凝土或者砖块上钻孔取样。

boring method (of pulp sampling)

（纸浆取样）钻孔法

Application of Dry Drilling and Sampling in Landslip Prospecting

干钻成孔及取样在滑坡勘察中的应用

Simulation and Experimental Study on Down-the-Hole Drilling Fluid Field of the Hollow DTH Hammer Reverse Circulation Coring and Sampling Technology;

贯通式潜孔锤反循环取心（取样）钻进孔底流场模拟与实验研究

Study on drill bit for large diameter core drilling of deep hole in hard rock

硬岩深孔大口径取芯钻进的钻头研究

Development of core drill equipment for combined underwater drill rammer of rock built-in pile hole

嵌岩桩孔组合潜孔锤取心钻具的研制

To draw off(a liquid) by piercing a hole in a cask or other container.

钻孔汲取通过在桶或其它容器上钻孔来汲取（液体）

Selection of Core Drilling Method for WFSD-2 of Wenchuan Earthquake Scientific Drilling Project

汶川地震科学钻探二号孔取心钻进方法的选择

Research of Technology Problem with Pneumatic Downhole Hammer Core Drilling

气动潜孔锤取心钻进工艺问题的研究

CONSTRUCTION SCHEDULE ADVANCEMENT OF DRILLING PILE BY DEEP HOLE WATER PRESSURE BLASTING

采取深孔水压爆破提高钻孔桩施工进度

so every so often a sample is obtained with a coring bit.

因此时常要用取芯钻头取样。

tap(ping) drill

螺丝孔钻，螺丝底孔钻

The sorker was drilling.

此工人在用钻孔机钻孔。

The analysis of interval between long screw auger taking clay and static pressuring pile

长螺旋钻孔取土与静力压桩时间间隔的分析

Research on Deep Hole Wire Line Core drilling Tech.in Complicated Stratum

复杂地层中深孔绳索取心钻探技术研究

Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile

超大直径岩石桩水钻取芯成孔的施工技术

Study and Application of High Wear-resistance Drilling Rod for Wire-line Coring in Medium-deep Inclined Hole

中深斜孔绳索取心高强耐磨钻杆的研究与应用