The improvement of method of detectors next to the wall when testing shear wave velocity in the deep hole

The paper emphatically introduces the new method,principle and application of detectors next to the wall in the hole when testing shear wave velocity,contrast and analyses shortage of old method and advantage of new method.The result states clearly that test accuracy of new method is improved very great,decides accurately earth type and classification of architectural yard,supplies detailed anti seismic design parameter for architectural design.