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为了确定土壤的强度,通常可采用直剪、三轴与一系列野外测试手段来确定,而三轴试验的排水慢剪、不排水快剪等是一种认为比较好的室内试验方法。一组好的三轴试验,在一般情况下可得到一组具有公切线的摩尔园(图1),由此通过作图即可求得土的强度指标C、φ。但是试验工作並不都是如此理想,由于土样的不均匀性、切土的差异与试验仪器的
In order to determine the strength of the soil, direct shear, three-axis and a series of field test methods can be used to determine, and the triaxial test of drainage slow shear, undrained rapid shear, etc. is a relatively good indoor test method. In a good set of triaxial tests, a set of mole tangents with a common tangent line (Fig. 1) can be obtained under normal circumstances, from which the strength indices C, φ of the soil can be obtained by plotting. However, the test work is not always so ideal because of the non-uniformity of the soil samples, the differences in soil cutting, and the test equipment.