ABSTRACT
Frozen soils and rocks essentially differ from thawed ones in deformations resulting from stresses applied under varying conditions. To ascertain regularities typical for particular conditions, special experiments were needed, both in laboratory and in the field. The paper presents and discusses some physical approaches and experimental results of investigations into behavior of dynamic and static moduli of elasticity and total deformation modulus for frozen ice saturated sandy-clayey and coarse clastic soils as well as for rocks (igneous, metamorphic and sedimentary ones). Analysis of temperature and salinity dependences of the various medium moduli revealed some features of its similarities and distinctions which enabled us to obtain the quite reliable relationships between static and dynamic moduli. These relationships make possible to define the values of static moduli for frozen grounds both in laboratory and in situ from seismic and acoustic studies, which are much easier to perform than the static tests.
