Rayleigh波在工程勘察中的解释方法探讨
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摘要
介绍了 Ｒａｙｌｅｉｇｈ 波在工程勘察中的常用解释方法，分析了影响勘探精度的主要因素，并提出了一种简单的解释方法。利用两个不同模型的理论频散进行计算表明，即使模型中含明显的低速层，该方法所得剪切波速度结构与真实值也非常接近。对实测地震波处理所得结果与单孔测井所得结果也较为吻合。
In this paper,we introduced common interpretation methods in Rayleigh wave exploration, analysed the primary factors of effecting on exploration precision,and provided a simple method of interpretation. The computation resulted from theoretical dispersion of two different kinds of model showed that shear wave structures obtained by this method are also coincident with true values, even if slow velocity layers are obviously included in the model.Moreover,the results obtained from observed waveform are very similar to those from single hole logging.
In this paper,we introduced common interpretation methods in Rayleigh wave exploration, analysed the primary factors of effecting on exploration precision,and provided a simple method of interpretation. The computation resulted from theoretical dispersion of two different kinds of model showed that shear wave structures obtained by this method are also coincident with true values, even if slow velocity layers are obviously included in the model.Moreover,the results obtained from observed waveform are very similar to those from single hole logging.
引文
1 胡家富, 段永康,胡毅力. 利用多道信号测定短周期面波频散. 地球物理学报,1998 ,41( 增刊) :298 ～304
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5 薛琴访.场论.北京:地质出版社,1978 .359 ～362
6 崔建文, 乔森, 樊耀新.瞬态面波勘探技术在工程地质中的应用.岩土工程学报,1996 ,18(3) :35 ～40
2 胡家富, 温一波,谢应齐. 利用地震面波频散反演岩石圈结构的奇异值分解算法.地球物理学报,1998 ,41(2) :211 ～217
3 石耀林, 金 文. 面波频散反演地球内部构造的遗传算法.地球物理学报,1995 ,38(2) :189 ～198
4 杨成林等.瑞雷波勘探. 北京: 地质出版社,1993 .99 ～117
5 薛琴访.场论.北京:地质出版社,1978 .359 ～362
6 崔建文, 乔森, 樊耀新.瞬态面波勘探技术在工程地质中的应用.岩土工程学报,1996 ,18(3) :35 ～40
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