【摘要】 近十年来，我们将超声模拟技术引入地震动研究领域，综合研究震源位置、传播路径及场地条件对地震地面运动的影响。重点报道了当场地地基中存在不可避开的断裂时地震波传播的超声模拟结果，以及双层地质结构地震反应的若干研究成果。更多还原

【Abstract】 By the porosity, strength, deformation and permeability of rock masses, it is proved that the properties of rock masses are influenced by stress condition and are the function of spatial position. They have the characteristic of random field. Moreover, the concept of the physical field for engineering rock masses is proposed. To be coinsided with the characteristic of the ‘field’, some traditional working methods in rock engineering should be improved, such as the arrangement for in situ test points and the statistics of test parameters etc..更多还原