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    • 1. 发明授权
    • 천공및파이프설치유닛
    • KR100377655B1
    • 2003-05-17
    • KR1019970704710
    • 1996-01-09
    • 트랜치리스 리플레이스먼트 서비스즈 리미티드
    • 핸드포드,레지날드,지.
    • E21B19/08
    • E21B19/086E21B7/046E21B7/20E21B33/08
    • A utility power unit (10) for underground drilling and pipe laying operations comprises a stationary frame portion (12), a movable frame portion (14) capable of performing sliding movement relative to the stationary frame portion (12) and hydraulic cylinders (44) between the stationary and the movable frame portions (12, 14) for effecting the relative movement. The movable frame portion (14) includes an attachment (36) for removably attaching a tool connecting member (38) thereto and a further attachment (40) for removably attaching a rotary drive unit (52) thereto. The invention also provides a method of directional boring along an intended underground path (62) comprising the steps of providing a machine pit (60) at a location along the intended path (62) and drilling a bore along the intended path (62) by means of directional drilling apparatus (10) which includes a stem (30) provided with a drill (68) at a forward end thereof. The bore is started from an inside wall (64) of the pit (60) and at a location beneath ground surface.
    • 一种用于地下钻探和铺管作业的公用电力装置(10)包括一个静止框架部分(12),一个能够相对于静止框架部分(12)滑动的可移动框架部分(14)和一个液压缸(44) 在固定框架部分(12)和可移动框架部分(14)之间,用于实现相对运动。 可移动框架部分(14)包括用于将工具连接构件(38)可拆卸地连接到其上的附件(36)和用于将旋转驱动单元(52)可拆卸地连接到其上的另一附件(40)。 本发明还提供了一种沿预期的地下路径(62)定向钻孔的方法,包括以下步骤:在沿着预定路径(62)的位置处提供机器坑(60),并沿着预期路径(62)钻孔 定向钻井设备(10)的装置,其包括在其前端设置有钻头(68)的杆(30)。 孔从坑(60)的内壁(64)开始并在地面下的位置处开始。