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摘要: P.S测井技术是地震勘探方法之一,也是一种简便、快速、准确的原位测试技术。通过P.S测井可测定岩土体的弹性波速(Vp、Vs),为工程设计提供所需的动弹性力学参数、划分建筑物场地类别、评价地震效应、进行场地地震反应分析和地震破坏潜势分析等。文中简述了P.S测井技术的工作原理、现场实测技术以及数据处理和资料分析过程。最后结合两个实例说明了P.S测井技术在岩土工程勘察设计中的应用及其效果Abstract: Well logging technique with P and S wave is one of seismic exploration methods.It is an easy,rapid and accurate method of in situ measurement.Through measuring elastic wave velocity of rock and soil layers with P and S wave well logging technique,we can supply elastic dynamic parameters for engineering design,plot out the site grade of building,evaluate earthquake's effcet,analyze site earthquake response and potential damages.The working principles,field observing techniques,data processing and analysis about P and S wave well logging technique are briefly introduced.In the end we illustrated the application of P and S wave well logging method and its effect in geotechnical engineering investigation and design with two practical examples.
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Key words:
- seismographic prospecting /
- P and S wave well logging /
- shear wave /
- compressive wave
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[1] 林在贯,等主编《岩土工程手册》.北京: 中国建筑工业出版社, 1994. [2] 常士骠主编. 工程地质手册(第三版).北京: 中国建筑工业出版社, 1992. [3] 刘康和,童广才. 场地原位试验的工程应用. 国外地质勘探技术. 1996, (6). [4] 《天津市建筑地基基础设计规范》, TBJ1-88. 14~20. [5] 王锺奇,等. 地震区工程选址手册.北京: 中国建筑工业出版社, 1994. 42~47. -
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