civil engineer dino chee morley explains the principle was the pilot would be to in order to stabilize the building substrate piles were driven into the bed in each area. if sufficient piles are used in the areas then so that with water the mud between the piles becomes compressed and thus more stable than everything outside the area that high also keep everything together and prevent the substrate from being washed out that's the principle behind ground stabilization of the body. in this way the venetians created man made areas on which an entire city could gradually be built. because architects had discovered that the wooden piles did not cross in the mud. the poles put up underneath the buildings in the mud. that prominently in oxygen spring environment certainly none of the microbes that would normally think a wood can get into that because the wood undergoes a process of mineralization it turns rock hard and remains intact for centuries. the most famous the mission buildings were constructed on this building ground of mud and wood. st mark's square with its bell tower stands 110-0