PECULIARITIES OF THE DEFORMABILITY OF PEATS STRENGTH
Peat as a consequence of its formation,composition and state differs drastically from mineral soils on both deformability and strength. The results of investigations of peat deformability under hard plane stamp under a gradually increasing load allowed reveal four phases: compaction with movement of solid particles (peat carcass) in the zone under the stamp only vertically downwards; compaction and cutting of the carcass along the stamp perimeter with movement of solids only downwards; «catastrophic» cut of the carcass (stamp downfall)stamping out of it in the zone under the stamp together with the humus water,and side widening of the carcass but with the compaction continuation; carcass breakage and its stamping out. The tests results showed a possibility of HTS arrangement with a rigid water conveying pi pe laid on the natural peat base. The research results of peat as natural bases of network structures of reclamation systems showed that peat strength is ensured by resistance to compression and cutting in one cases,and in other cases - resistance to compression and breakage. The task is only to determine theses indicators correctly.