由于试件制备、加荷等均极困难，且昂贵而费时，难于像岩块那样进行大量试验来确定岩体之强度。
The difficulty of determining the strength of rock masses is that rock masses are heavily jointed.
本发明还提供一种测量采用 上述级配碎石板状试件轮碾成型方法所制备的级配碎石板状试件密度的方法。
The invention also provides a method for measuring density of the graded broken stone tabular specimen prepared by the graded broken stone tabular specimen wheel mill molding method.
在疲劳加载过程中，按一定的疲劳周次在零载荷状态下停机，并采集试件表面上预先制备的白光散斑图。
During the experiment, the fatigue-loading was paused after fixed fatigue cycle and the white-light speckle patterns were acquired without loading.
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