福建漳州地区典型土动力特性的试验研究

Testing Study on the Dynamic Properties of Typical Soils in Zhangzhou Area,Fujian Province

摘要:

通过对福建漳州地区淤泥、粉质粘土、粉质粘土与粉砂互层土、残积土等4类典型土的共振柱试验,探讨了围压大小、土的性质对这4类典型土的动剪切模量G及阻尼比γ的影响,给出了在不同围压下的G/Gmax和λ/λmax随γ变化的平均曲线及其参数的推荐值,并定量的给出围压对参数的影响规律。结果对实际工程具有一定的借鉴作用。

Abstract:

Through the resonant column test on 4typical soils as mud,silty clay,silty clay and silty sand interbedded strata,residual soil,the influence of confining pressure and soil property on dynamic shear modulus Gand damping ratioγof the 4typical soils is explored in detail.The average curves of G/Gmaxandλ/λmaxwith the change ofγunder different confining pressures as well as their recommended values of parameters for the 4typical soils in Zhangzhou are presented.Besides,the influence patterns of confining pressure on the average curve parameters are also quantified.The result could be used as reference for practical projects.