− bored and cast-in-place piles construction using CFA, DDS technologies and vibration driving method by pile shoe loss;
technologies and vibration driving method by pile shoe loss; − land cofferdam;
− base reinforcement by the soil mixing method;
− freezing, hydrogeological structure wells and household drinking water supply wells drilling
− construction dewatering;
− hydraulic seam fracture;
− maintain formation pressure;
− static testing of soils with bored and cas-in place piles;
− piles quality control (PET echo-method);
− well-drilling with core sampling using Wireline technology.