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In this article, authors introduce such underwater large diameter drilling & grouting pile construction techniques adopted in this project as fixed working platform, underwater drilling and pore forming, underwater concrete pouring and so on.

本文介绍了该工程中采取的固定工作平台 ,水中钻进成孔 ,水下混凝土浇注等水中大直径灌注桩施工技术。

Analysis was made on the advantages of low cost and high efficiency by open hole drilling with cemented carbide in Songyuan oil shale formation,specific measures were put forward for drilling in Songyuan oil shale formation and the rationality & effectiveness were verified by engineering case.

分析了在松原油页岩地层采用硬质合金裸孔钻进技术成本低、效率高的优越性,提出了松原油页岩地层硬质合金裸孔钻进的具体措施,并通过工程实例取得的较好效果验证所选择的钻进方法的合理性和有效性。

Management of Quality and Constructing in Infixing and Forming Hole Vibrating and Striking Gravelly Stake;

钻进成孔振冲碎石桩的质量与施工管理

The Research of Applying the Witrasonic Wave to Detect the Pole Base Drill Becoming Hole;

运用超声波对桩基钻孔进行成孔检测的研究

Bore Information Management and the Method Improvement of Auto-Generating Histogram

钻孔信息管理和柱状图成图方法的改进研究

A whiff of cigarette smoke struck his nostrils.

一缕香烟钻进他的鼻孔。

Since the inception of this project in1998, three pre-pilot holes have been completed and the main hole has reached a depth of over3500 m.

从98年开始，已经完成3个预先导孔的钻探工作，主孔钻进深度已经超过3500米。

The Optimal Design About the Trajectory of Non dig Guided Boring

非开挖导向钻进钻孔轨迹的优化设计

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

Application of Bit Water Way in HDD

水平定向钻进扩孔钻头水口应用分析

Test of digital borehole camera and borehole computed tomography imaging

数字钻孔摄像与钻孔CT层析成像测试试验

Research on Quality of Drilled Holes for Cast-in-Place Piles in Shanghai District;

上海地区钻孔灌注桩成孔质量的研究

THE RESEARCH ABOUT MECHANISM ON UNLOADING TIME EFFECT CAST-IN-PLACE BORED PILES

钻孔灌注桩成孔卸荷时效性理论研究

A Brief Explanation of Air Actuated DTH Hammer Drilling Efficiency

空气潜孔锤钻进是提高钻进效率的有效途径

Drilling is performed with a rotating tool called a drill.

钻孔是用一个称为“钻头”的旋转刀具进行的。

DISCUSSION OF TECHNOLOGY FOR DISPLAYING THE BORE STRATA HISTOGRAM IN-PHASE WITH DRILL

钻进时同步显示钻孔地层柱状图技术探讨

Research on Bit for Efficient Drilling of Gas Drainage Borehole in Nantong Mining Area;

南桐矿区瓦斯抽放孔快速钻进钻头的研究

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

Vibration Signal Applied to Analyze Reaming Performances of Raise Boring Machine

采用振动信号分析反井钻机扩孔钻进工况

Drilling Technology for Water Inrush Borehole in Pulang Copper Mining Area of Shangrila

香格里拉县普朗铜矿区涌水钻孔钻进工艺