摘要
在岩土工程测量中，Ｓ波速度是一个重要参数，正确地识别其震相，对提高Ｓ波速度的测试精度非常重要。郭铁拴先生等发表关于“检层法钻孔波速测量中的震相分析”一文中提出在有套管的检层Ｓ波测量中，深度大于４０ｍ时，Ｓ波震相淹没在折射波中。本文根据大量的实测资料和理论分析，针对郭铁拴先生一文给出我们的补充观点：大于４０ｍ深时Ｓ波震相还能清晰可见，并对“套管波”作了理论解释，提出了减弱“套管波”幅度或能量的措施，供讨论，以便提高Ｓ波速度测试精度，为国民经济建设服务。
The Vs velocity is an importment parameter in the engineering measurements of rock soil. To discern the phase correctly can raise the pracision of V s velocity. Mr Guo Tieshuan etc. in their paper “the phase analysis in V s measurements with the down hole”said that the S phase can not be discerned if a tube hole depth is more than 40 meters. According to the practical measurements and theory analysis, we add the contents in this paper: (1) the S phase can be seen clearly if the tube hole depth is more than 40 meters; (2) the “tube wave”is analysed in theory; (3) it gives method that “tube wave”can be enervated. Raising V s precision is the aim of these.
出处
《地震地磁观测与研究》
1997年第6期39-42,共4页
Seismological and Geomagnetic Observation and Research
