【摘要】 结合某粉煤灰筑坝工程 ,运用轻便动力触探仪对粉煤灰在碾压填筑方面进行了一系列现场试验 ,与几种常规原位测试手段进行了对比分析 ,结合该仪器开展了粉煤灰分层碾压密实度试验 ,在此基础上 ,分析了粉煤灰的岩土力学性质 ,尤其是粉煤灰的密实性。对比与常规原位测试所测得的力学参数 ,提出了一种运用所测的力学强度对粉煤灰的密实度进行间接评价的简单方法。更多还原

【Abstract】 Combining with the fill dam engineering using fly ash in Taiyuan,a series of tests have been carried out for fly ash in roller fill dam using a por table dynamic penetrometer with variable energy.First,the contrast analysis had been done,which compared to other routine methods of in-situ test,including st at ic cone penetration test,dynamic penetration test and standard penetration test, etc.Second, coupled with the apparatus,the compaction tests were also performed on fly ash under the same conditions.Then,on the basis of the results obtained, the geotechnical properties of fly ash,especially its compactness are analyzed.Comp ared with other routine methods measuring the mechanical index of fly ash,t he indirect and simple method was proposed to evaluate the compactness of fly as h by mechanical resistance measured in-situ with the penetrometer.更多还原