The tests prove that saturated soils are a kind of strain hardened media and stress wave will maintain shock wave characteristic invariant during shock wave dynamic loading.
试验证明，饱和土属于应变硬化介质，在激波动力加载条件下，土中应力波将保持其激波特征不变。
By use of dynamic strain testing, the ultrasonic wave, bedded composite rock damage and fracture mechanisms and the fragmentation process during blasting have been experimentally studied.
运用超动态应变测试技术、超声波检测仪对层状复合岩体的爆破损伤破坏机理和破坏过程进行了实验研究。
Low strain dynamic testing on actual pile was conducted to investigate if the wave velocity is varied in the installed pre-cast pile.
通过实际工程的低应变桩基动测，发现打入桩的波速随时间提高。
The solution is used to study torsional wave characteristics of the pile. The conclusion will be of guide significance on low strain dynamic testing of pile with torsional wave.
用这种解研究桩的扭转波特征，其结论对应用扭转波进行低应变动力测桩有指导意义。
The plane-section assumption was not congruous in low strain dynamic tests on pipe piles, so the propagation of stress wave couldn't be expressed by 1D wave equation.
管桩低应变检测时，平截面假定并不满足，应力波的传播不能简单地用一维波动方程描述。
The plane-section assumption was not congruous in low strain dynamic tests on pipe piles, so the propagation of stress wave couldn't be expressed by 1D wave equation.
管桩低应变检测时，平截面假定并不满足，应力波的传播不能简单地用一维波动方程描述。
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