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本文从理论上探讨了跨孔法现场动力测试中初至剪切波的传播路径,并就跨孔孔距、土层的物理力学特性和应力状态对波传播路径的影响进行了数值分析,提供了评价跨孔法测试结果的依据。本文最后提出了对现场跨孔法测试结果的修正公式和一组可供实际应用的修正系数曲线。 本文的结论似较适用于无粘性土层。
This paper discusses theoretically the propagation path of the first-order shear wave in the on-site dynamic test of cross-hole method, and numerically analyzes the effect of the cross-hole spacing, the physical and mechanical properties of the soil layer, and the stress state on the wave propagation path. The basis for evaluating the results of the cross-hole test. In the end, this paper proposes a revised formula for the test results of the cross-hole method in the field and a set of correction coefficient curves that can be applied in practice. The conclusion of this paper seems to apply to the cohesive soil layer.