研究岩石纵横、波速度关系是地震勘探的基本问题。依据国内四川寒武系、二叠系、震旦系地层四类不同岩性及成分的露头岩石样品,基于AutoScan-Ⅱ平台在常温常压下进行了纵横波速度的测定。分析测量结果,拟合出了砂岩、页岩、白云岩、玄武岩的纵、横波速度关系式。分析表明,岩石中纵横波速度关系有地区性差异。 Studying the relationship between rock aspect and wave velocity is the basic problem of seismic exploration. Based on the four types of outcrop rock samples with different lithologies and compositions in the Cambrian, Permian and Sinian strata in Sichuan Province, the P-wave velocity was measured at room temperature and pressure based on the AutoScan-Ⅱ platform. The measurement results were analyzed and the longitudinal and shear wave velocity relationships of sandstone, shale, dolomite and basalt were fitted. Analysis shows that there is a regional difference in the relationship between P-wave velocity in rock.