While cyclic triaxial (CTX) tests are widely used in liquefaction studies due to their simplicity, direct simple shear (DSS) tests and their ilk (e.g., the combined triaxial simple shear, T_xSS) are more representative of stress conditions produced during an earthquake. Therefore, the CTX results should be properly correlated to simulate field conditions. In the current study, a series of CTX testing results performed on reconstituted samples of Baie-Saint-Paul, Ottawa C-109, and Quebec CF6B sands are compared to the corresponding T_xSS and DSS results under both stress- and strain-controlled conditions. The cyclic T_xSS stress-controlled tests are numerically simulated by adopting a coupled energy-based pore water pressure model using the computer code, FLAC. The T_xSS numerical results are successfully compared with those obtained experimentally from (1) alternative stress-controlled T_xSS, (2) available liquefaction potential curves (CSR-N_liq) in the literature, and (3) stress-controlled DSS testing results. As anticipated, the outcomes of the cyclic stress-controlled CTX testing results in the form of liquefaction potential curves are usually higher than that of the T_xSS testing results. In contrast, due to the difference in the applied (strain-controlled tests) and the induced (stress-controlled tests) strains, the liquefaction resistance curves of T_xSS are higher than those of CTX under cyclic strain-controlled test.

而环状三轴（CTX）测试被广泛用于液化的研究由于其简单，直接简单剪切（DSS）测试和之流（例如，组合的三轴简单剪切，T _X SS）是更具有代表性的过程中产生的应力的条件地震。因此，应正确关联CTX结果以模拟现场条件。在当前的研究中，在压力和应变控制下，将对Baie-Saint-Paul，Ottawa C-109和Quebec CF6B砂的重构样品进行的一系列CTX测试结果与相应的T _x SS和DSS结果进行了比较。条件。循环Ť _X通过采用基于能量的耦合孔隙水压力模型，使用计算机代码FLAC对SS应力控制的测试进行了数值模拟。将T _x SS数值结果与以下实验成功地进行了比较：（1）替代应力控制的T _x SS；（2）文献中可用的液化电位曲线（CSR- N _liq）；以及（3）应力控制的DSS测试结果。如预期的那样，以液化电位曲线形式进行的循环应力控制CTX测试结果通常高于T _xSS测试结果。相反，由于所施加的（应变控制测试）和诱导的（应力控制测试）应变不同，在循环应变控制测试下，T _x SS的液化阻力曲线高于CTX。