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数字散斑技术在地震边坡模型中的应用

DOI: 10.3969/j.issn.1674-0696.2014.04.20, PP. 95-100

Keywords: 环境工程,数字散斑技术,地震边坡,全场位移场,模型试验,environmentalengineering,digitalspecklecorrelationmethod,earthquakeslope,thedisplacementfieldandthestrainfield,modelexperiment

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Abstract:

:?地震边坡模型试验中,一般采用在坡体内埋设观测装置对模型试验进行测量。监测仪器存在安装麻烦、监测数据有限等缺点,导致不能得出全场位移场,同时在振动过程中,仪器与岩土体发生脱离,使得测得的参数不准确甚至是失真。在监测过程中采用了数字散斑技术,较好地得出全场位移场,为地震模型试验提供了一种新的测量方法。由于其测量方法简单容易,测量结果比较直观,测量精度较高,可以实现自动化测量并且是一种无接触式测量技术,该方法相对于其他传统测量方法具有更好的应用前景。

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