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Discussion Starter · #1 ·
i am installing an 80 mile rural pipeline and have ran into shelf rock. the particular shelf i am on now is 25' long and 5' thick. our trench width is 3' wide. i think we might run into this 15 times through out our project. our cover depth is 7'.

what are the recommendations for handling this rock? i have been told others are using hammers or breaker balls.
 

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Discussion Starter · #8 ·
i have broke a little concrete and asphalt with a hammer, but never rock with any tool. i think a headache ball would be the cheapest.
 

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Discussion Starter · #14 ·
i got some samples of the rock yesterday. i was able to break some chunks off with a 3lb sledge. it is definitely sandstone. it is about 5 feet thick. i can set it on a concrete sidewalk and break it into small pieces with the same hammer. i didn't work very hard with the hammer, didn't swing it with too much force.
 
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