Glossary of Mining Terms - Kentucky Coal Education
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back ...
Mine Master - Official Site
The specialty MineMaster are drilling machinery, mining machinery, drill rigs, mining equipment. Today our offer has been extended by LHD's and Dump Trucks.
How to Drill a Well: 10 Steps (with Pictures) - wikiHow
How to Drill a Well. A well is a man-made hole dug into the ground to get to a liquid. The most commonly sought liquid is water: About 97 percent of the world's fresh water is found in underground aquifers, and some 15 million American...
Homemade Leg Press Machine - Instructables
Hello! This instructable will show how to make a Leg Press exercise machine capable of over 200lb resistance. It is fairly easy and simple to make, not to mention...
Bertha (tunnel boring machine) - Wikipedia
Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and is the world's largest earth pressure balance tunnel boring machine, at a cutterhead diameter of 57.5 feet (17.5 m) across.
J. & H. Drilling Co., Inc. - Home
Environmental Drilling Geotechnical Drilling Direct Push Air knife Well Development Underground Utility Locating, Well Permits Los Angeles County Orange County SBE DBE MBEJ.
Home Page [underground.com]
24 hr phone/email break down and parts support, as well as 'technical and reliability' reports to keep technicians up to date with common reliability issues and new maintenance strategies.
Directional boring - Wikipedia
Directional Boring, often undifferentiated from Horizontal Directional Drilling (HDD), is a minimal impact trenchless method of installing underground pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground bore path by using a surface-launched drilling rig.
Mining - Underground mining | Britannica.com
Mining - Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered.
200 underground cities - HEARTCOM
Tunnels under the USA and Deep Underground Military Bases (DUMBS) See also, Underground Facilities - Bases - Tunnels So the elite are keeping silent about Planet X coming but have been busy building underground cities and interconnected tunnels - hmmmmmm?
Mining | Britannica.com
Mining: Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure.
Project Camelot | Underground bases and tunnels
The first section of this page was written by Phil Schneider:. Photo of United States Air Force tunnel boring machine at Little Skull Mountain, Nevada, USA, December 1982.
ProVision Machine Guidance System - Modular Mining Systems
ProVision Shovel . With the ProVision Shovel system, operators are actively guided by high-precision GPS to dig the right material, keep the designed bench grade, respect dig limits, and work within the machine's optimal operating specifications.
Secret Underground Bases - Cosmic Conspiracies
Underground Bases We recently came across a very interesting list from a book called Entrances to Subterranean Tunnels "Underground Alien Bases" (UAB) ISBN: 0-938294-92-X (UAB) which purports to list
Sandvik Mining and Rock Technology - Mining Equipment, Parts ...
Sandvik rock drills or rotation heads - depending on application - are the heart of any rock drilling equipment. As the leading supplier of rock drill technology in the world, we design, produce and deliver these core components and their spare parts for underground drilling and surface drilling.
S36 drifter style rock drill designed for deep hole drilling ...
Drifter style rock drill designed for deep hole drilling in both surface and underground applications when mounted on suitable feed systems.
Fiskar's Hand Drill 1/4 in. Carded - Ace Hardware
Ideal for drilling on the go no cords or batteries needed. Smooth operating gear system is completely enclosed in a durable ABS housing. Used for quick jobs.
DISPATCH Underground Fleet Management System | Modular Mining ...
DISPATCH Underground | Modular Mining's DISPATCH UG fleet management system optimizes underground mines with real-time data & equipment activity management.
Underground Construction (Tunneling)
Underground Construction (Tunneling) U.S. Department of Labor Elaine L. Chao, Secretary Occupational Safety and Health Administration John L. Henshaw, Assistant Secretary
The Combs Group Inc. - Phillips Machine Services, Inc.
Our Harrogate, TN facility offers: Machining and Rebuilding – Our facilities are staffed with certified and highly skilled Machinists that operate a variety of precise, machining equipment.
Sinocoredrill - Official Site
Sinocoredrill Group Co.,Ltd is best Core Drill Rig, Horizontal Directional Drilling Rigs and CBM Drilling Rig supplier, we has good quality products & service from China.
Flotec FPDMP21SA-P2 Self Priming Drill Pump - amazon.com
I purchased this pump to drain out a few gallons of water at the bottom of our hot tub but it was pretty worthless. I originally had it on a cordless drill but the drill required greater RPMs so I hooked it to a power drill that had more than enough RPM to do the job but it just did not drain the way I had hoped and was way to slow.