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采用室内重型击实试验的方法,分别对砂土、粉质黏土、低液限黏性土3种土样的纯土试件和土石混合试件进行了不同含水量、不同含石量情况下试件剪切波速对比试验,研究了土石混合试件在密度一定条件下混合料宏观剪切波速及石料间隙土表征剪切波速随含石量的变化规律,分析了含石量对剪切波速影响的机理。大量试验结果表明,含石量与土石混合介质的剪切波速存在显著的相关性。同时这种相关性随含水率的变化而波动,含水率对混合料剪切波速的影响随含石量的增大而减小。研究结果将为土石混合料间隙土剪切波速测试模型提供依据。
Using indoor heavy-duty compaction test method, the pure soil samples and the soil-rock mixed samples of sand, silty clay and low-liquid-limit cohesive soil were tested under different water content and different stone content The shear wave velocity of the specimen is compared with that of the rock specimen under the density of certain conditions, and the variation of the shear wave velocity with the rock content is analyzed. The effect of the rock content on the shear wave velocity Mechanism of influence. A large number of experimental results show that there is a significant correlation between the stone content and the shear wave velocity of the rock-soil mixture. At the same time, this correlation fluctuates with the change of water content, and the influence of water content on the shear wave velocity of the mixture decreases with the increase of the content of rock. The results will provide the basis for the shear wave velocity test model of soil-soil mixture gap soil.