laying of a borehole

Current situation and development of bolt drilling equipment used in collieries

煤矿锚杆支护钻孔设备的现状及发展

According to the practical projects,the tonnage selection of drilling machine in trenchless construction and pilot bore curve design method are presented.

结合实际施工经验,就非开挖施工过程中钻机的吨位选择、导向钻孔曲线设计给出了简单易行的方法;从液压系统的保养、发动机的保养、橡胶履带的保养3个方面对钻机的保养方法进行了详细叙述。

Application of drilling equipment in large diameter and extra long pile

钻孔机械设备在大直径超长桩中的应用

rotary wash-boring equipment

旋转式水冲钻孔设备

Current situation and development of bolt drilling equipment used in collieries

煤矿锚杆支护钻孔设备的现状及发展

A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.

钻架竖在钻井（尤指油井）之上的支架，用来支撑钻孔设备或提升和下放钻管

Determination of contact-angle searching field on high-speed ball bearing in drilling equipment

钻孔设备高速滚珠轴承接触角搜索域的确定

Type selection of ф3.40m large diameter and deep hole drilling equipment for No 3 main tower pier of Wuhan Tianxingzhou great Yantze River bridge;

武汉天兴洲长江大桥3号主塔墩ф3.40m大直径深孔钻孔设备选型

Equipment Selection and Technical Measures for 2010m Deep Slant Hole Drilling

2010m斜孔钻探设备选择及技术措施

Research on the Machining Method and the Equipment of Drilling-tapping Once Shaping;

钻孔、攻丝一次成形的加工方法和设备的研究

Research on the Control System of Drilling-tapping Once Shaping;

钻孔、攻丝一次成形设备的控制系统研究

Application of drilling equipment in large diameter and extra long pile

钻孔机械设备在大直径超长桩中的应用

A device, such as a drill, that operates with a jerking or jolting motion.

振动器，推拉器一种像钻孔机的设备，运转时来回拉动和推动

The Applicant of Reinforced Concrete Rotary-dig Drill Caisson Pile in Large-equipment Foundations

钢筋混凝土旋挖钻孔灌注长桩在大型设备基础中的应用

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

Must be familiar with measuring equipment such as micrometers, verniers, plug gauges, dial bores and various dial indicators.

熟悉测量设备装置，诸如：千分尺、标尺、形测孔规、度钻孔及多样化的千分表。

Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.

（1）钻孔使用配套冲击电钻.钻孔时,孔洞间距与孔洞深度应满足设计要求.

Specification for drilling equipment

GB/T17744-1999钻井设备规范

offshore mobile drilling rig

移动式海上钻探设备

Marine Mobile Driling Unit Insurance

海上移动性钻探设备险

Bit Design for Main Pier Bored Piles of Donghai Bridge

东海大桥主墩大直径钻孔灌注桩钻头设计