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บริการเจาะสำรวจดินและทดสอบดิน โทร. 0-2729-5031, 085-917-7163


Rotary drilling machine for objective of rock coring.

เริ่มโดย denichammy, กันยายน 02, 2013, 11:49:39 am

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denichammy

 :D The rotary drilling machine shall be used for objective of rock coring. Its main equipment include cathead, diamond bit and core barrel with NW sized drilling rod (66.7 mm OD) and its gadgets such as power unit, water pump and tripod. The drilling rods are varied in length from 0.5, 1.0, 1.5, and 3.0 in order. The NW sized steel flush-joint protective casing (88.9 mm OD) with the same length variation as the drilling rod shall be equipped along the thickness of soil formation sitting on the rock surface in order to prevent borehole tumble down. Rock core samples were systematically collected in core boxes with label on borehole information before taking a photograph for coming soon reference. Boring log is managed by an engineering geologist focused on core recovery, soil/rock description, degree of weathering, degree of hardness, degree of cracking with their outstanding modification, and rock quality designation (RQD). The representative rock completed of each hole shall be take for laboratory.  :wanwan016: