This note describes a faster and complete consolidation testing procedure using the inflection point method so as to obtain the void ratio–consolidation curve at the end-of-primary consolidation and the coefficient of consolidation. The testing procedure is similar to the conventional incremental load consolidation test, with the only difference being that the subsequent loading is applied once the degree of consolidation of U = 70·15% is reached. The time and settlement corresponding to U = 70·15% is obtained using the inflection point method, from which the end-of-primary consolidation and the coefficient of consolidation are evaluated. The validity of the proposed procedure is verified by performing tests on four reconstituted and three undisturbed soil samples. By adopting the proposed procedure, complete consolidation tests can be completed within 2·5 to 9 h depending on the coefficient of consolidation of the soils.

中文翻译：

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使用拐点法的一次固结终点参数

本说明描述了使用拐点法的更快、更完整的固结测试程序，以获得初级固结结束时的孔隙率-固结曲线和固结系数。试验过程与传统的增量荷载固结试验相似，唯一的区别是一旦达到U  =70·15%的固结度就进行后续荷载。U对应的时间和结算 = 70·15% 是使用拐点法获得的，从中可以评估初级固结的末端和固结系数。通过对四个重组和三个未受干扰的土壤样品进行测试，验证了所提出程序的有效性。通过采用建议的程序，完整的固结试验可以在 2·5 到 9 小时内完成，具体取决于土壤的固结系数。