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Engineering
General Engineering
Applying pressure for clearing land mines
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[QUOTE="JBA, post: 5482187, member: 570081"] In the oil industry small (1/2" dia x 3/4" long) cylindrical shaped electrically fired well casing perforating charges (with a conical depression in one end to direct and concentrate the blast force) that do not damage the down hole charge carriers, have been used for many years. They function in the same manner as the shaped charges that are used in the should fired missiles used to penetrate military tank armor. (Note: For those not familiar with petroleum drilling and production operations, a number of these charges are placed around a cylindrical steel carrier lowered into a drilled well on an electrical cable to the depth of the oil containing formation where they are then fired to create a carrot shaped hole through the steel casing wall, its surrounding cement liner between the casing and surrounding formation and into the oil producing formation. It is these holes that allow the oil/gas in the formation to enter the well bore and be produced from the well.) In construction site ground detonations reusable blasting mats of woven wire rope are laid over the blasting areas to control surface debris while still allowing venting of the explosive gases through the mat to minimize its damage. In your system, where the location of the mine is already accurately determined, possibly a combination of these two items combined with a remote controlled wheeled vehicle to place the assembly over the mine would create a cost effective solution. (The charge should be inserted into the lower face of a thick steel plate in the center of the circular mat to effectively direct the blast force downward toward the mine.) [/QUOTE]
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Applying pressure for clearing land mines
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