作者：姚增，周仲华，丁梧秀

机构：兰州大学地质系

中文关键词：波速，频率，衰减系数，滤波，围岩稳定

英文关键词：

中文摘要：在敦煌石窟群及其附加建筑物稳定性评价中，由于受文物保护的限制，仅能采用地震法弹性波测试。本文对其围岩波速、波主振频率、衰减系数，共振频率、围岩低通滤波特性及波传播的各向异性特征进行了较深入研究。结合现场调查与动力法测试参数的对照，给出了石窟围岩稳定状态的动参数值。

英文摘要：Abstract To evaiuate the rock stability of the Dunhuang Cave ,Gansu Province,some me-chanical parameters are needed . For protecting this worid cuiture heritage, only surfacial seismic elastic wave test can be used. The wave valocity,principal frequency, attenuation coefficient ,the resonant frequency, the characteristic of low-pass wave filtration, and anisotropy of wave propaganda of the enclosing rocks of Dunhuang Cave are analysed in this Paper. Based on the in-sita investigation and the tested dynamic paramcters, the dynamic mechanical parameters of enclosing rocks in stable state are given. Key wores Wave velocity Frequency Attenuation coefficienct Wave filtration Stabili-ty of enclosing rock

[中文刊名]：地质灾害与环境保护 [出版日期]：1994-12-28 [CN]：511467P [ISSN]：10064362

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