This given work has been dedicated to samples of the constructive layouts for simplified rigid rollers, grounds categories as per labour input of the holes to be unreeled, constructive layouts for strengthening ground constructions with cast-in-place piles in the unreeled holes (PUH). A formula for assessment of the distance between PUH is also given here as well as some results of the studies as per compacted areas of the space around piles and improving PUH ground characteristics (ρd and E)
