Excerpt from The Use of Explosives in Making Ditches
With few exceptions, ditches can be excavated with explosives anywhere. The nub of the whole matter lies in the fact that one of the cheapest ways of moving dirt known is with explosives.
To blast ditches practically all that is necessary is to punch lines of holes and push charges to the bottom. The sides and bottoms of the blasted ditches are not as smooth as if they were shoveled out, but they are even and true. And the flow of water soon levels them down and smooths the bottoms.
The work can be done quickly, neatly and with no expensive outfit. It calls for few men. A month's work by ordinary methods can be done in a day, or a week's work in an hour. Ditches can be blasted through any kind of ground except dry sand. The presence of brush, grass, stumps and stones is no bar to this method of cutting out the ditches, though of course they dig out smoother and cheaper when the nature of the ground 15 clean and clear.
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HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LX-9780267859726
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