速度检层试验和稳态振动试验

DOWNHOLE SEISMIC TESTING AND STEADY STATE VIBRATION TESTING

本文是“原位跨孔波速试验”一文的姊妹篇。文章主要阐明速度检层试验和稳态振动试验的基本原理、现场试验和资料解释方法,特别提出了采用这两种原位波速试验方法时的局限性,当应用这两种方法解决一些重要的岩土工程问题及一些特殊的工程地质问题时应持慎重态度。

This paper is a continuation of 'Crosshole Seismic Testing Method in Situ'. Principally it expounds the basic principle, field procedure and data analysis techni- ques of downhole seismic testing and steady state vibration testing. Especially, it points out limitations of these methods such as measurement depth, their effects on boundary layer and surface wave in terference and also on velocity measurement. Hence when these methods are used in engineering, much caution must be taken.