摘要
大量实际资料表明,在松散地层中纵波速度受水饱和度的影响,故采用纵波反射法,从提高频率着手难以达到提高分辨率的目的。松散软弱地层中横波速度比纵波速度值要低得多,并且不受饱和度的影响,故利用横波勘探能得到较高分辨率,能较好满足工程地质勘察的需要。
A wealth of practical data show that it is difficult to attain the aim of enhancing the resolution by starting with the increase of frequency for the method of longitudinal (P) wave reflection. Owing to that the wave velocity is varied with water saturation in loose and soft ground, in such soft ground, velocity of shear (S) wave is rather lower than that of P wave and is irrelevant with water saturation, so we prefer to take advantage of S wave exploration to enhance the resolution rather than P wave being, so as to meet the demand of engineering geological investigation.
出处
《勘察科学技术》
1989年第3期59-63,共5页
Site Investigation Science and Technology
