一、前言 某坝址岩层主要为三叠纪白云岩、石灰岩,岩性坚而脆,断层、节理发育.为研究坝址的变形特性,在现场做了大量动静对比试验,又在其中14个试面中心钻取了岩芯,在室内作薄片鉴定、物理力学性和超声波试验.本文通过对上述试验资料的分析,讨论了动弹模的物理意义和造成动静对比分散性的主要原因. I. INTRODUCTION The rock formations of a certain dam site are mainly Triassic dolomite and limestone. The lithology is firm and brittle, and the faults and joints are developed. In order to study the deformation characteristics of the dam site, a large number of dynamic and static comparison tests were conducted on the site, and 14 of them were The center of the test surface drilled the core and used for indoor sheet identification, physico-mechanical and ultrasonic tests. Through the analysis of the above test data, the physical meaning of the moving elastic model and the main causes of the dynamic and static contrast dispersion were discussed.