tunnelling dirt leftover

09-04-2010, 06:23 PM	#1
chinacreekroad Newbie   Join Date: Sep 2010 Posts: 1	tunnelling dirt leftover after a tunnel excavation under the house to replace pipes, there was a large amount of dirt left over -about half- is this bad? should it all have fit back in? don't want slab to crack because of not enough support.

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