An innovative new seismic technique, the spectral analysis of surface waves (sasw) method, has outstanding potential for locating frozen and unfrozen ground rapidly and accurately through measurement of the seismic wave velocity profile. the velocity of seismic waves is much faster in frozen ground… More

The research involves acoustic tomography and reflection imaging of concrete conditions using stress wave energy to detect flaws such as void, honeycomb, cracking, and weak concrete in concrete test wll models. a key aspect of the research is the implementation of a rapid scanning ultrasonic stress… More

Phase i funds are sought for research and development of scanning sonic and ultrasonic stress wave methods for detection of flaws and deterioration in wooden components of bridges, buildings and other structures. the proposed research will innovatively combine rapid scanning technologies to be… More