After distraction was removed, immediate compressive force was measured. The specimen was then placed in a loading frame to simulate head weight.
当牵张力去除后，立即测定压力，然后将标本置于装载架上模拟头部重量。
The make-up of the peak value of impact loading being analysed, the theories of pressure wave and granular flow are applied to establish a calculating method for estimating the flow head impact force.
分析了冲击荷载峰值的构成情况，运用压力波理论结合颗粒流的应力关系建立了龙头冲击力的计算办法，并对概化后的龙头计算其在冲击坝体时的作用力垂向分布。
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