When driving piles in permafrost, they must be deprived of cone and clogged down down.
When driving piles into melt soil, lower them to a depth of at least double layer thickness 4, if the thickness of the layer allows such a clogging.
When driving piles in permafrost, they must be deprived of cone and clogged down down.
When driving piles into melt soil, lower them to a depth of at least double layer thickness 4, if the thickness of the layer allows such a clogging.
