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为研究某电厂灰坝采用粉煤灰作为筑坝排水垫层材料的可行性 ,先配制了符合抗液化要求的粉煤灰。在此基础上 ,对粉煤灰进行了大量的动力特性试验研究 ,提出了该类粉煤灰相应的动模量及阻尼比的计算公式并给出其抗液化强度、动孔隙水压力及动残余应变的计算公式及其参数。研究表明 ,利用粉煤灰作为筑坝的排水垫层材料是可行的。
In order to study the feasibility of using fly ash as the drainage dam material of dam in a power plant, fly ash meeting the anti-liquefaction requirements was first prepared. Based on this, a great deal of experimental research on the dynamic characteristics of fly ash has been carried out. The formulas for calculating the dynamic modulus and damping ratio of fly ash have been put forward. The formulas of liquefaction resistance, dynamic pore pressure and dynamic Residual strain calculation formula and its parameters. Research shows that it is feasible to use fly ash as a drainage cushion material for dam construction.