Effects of consolidation ratios of sands on dynamic shear modulus and response spectrum of soil surface 固結(jié)比對(duì)砂土動(dòng)剪切模量及地表反應(yīng)譜的影響
In this paper , some aspects such as the behavior of pore pressure of unsaturated loess , the dynamic constitutive relationship and the characteristics of the dynamic modulus , dynamic strength and dynamic damping ratio are studied with the dynamic torsional shear test of loess 在以上研究的基礎(chǔ)上,本文又通過(guò)黃土的動(dòng)扭剪試驗(yàn)研究了非飽和黃土的孔隙壓力特性、動(dòng)本構(gòu)關(guān)系、動(dòng)剪切模量特性、動(dòng)強(qiáng)度特性以及動(dòng)阻尼比特性。
The main dynamic parameter of the subsoil is the dynamic shear modulus . base on the data of the experiments , analyzing the relationship between the dynamic shear modulus and the characteristic parameters such as the density , the water content and the shear distortion , the expression of the dynamic shear modulus of the subsoil is picked out 地基土的主要?jiǎng)恿?shù)為土的動(dòng)剪切模量,而利用實(shí)驗(yàn)所得的數(shù)據(jù),分析動(dòng)剪切模量g與地基土的干密度(孔隙比) 、含水量以及地基土的剪切變形等參數(shù)之間的關(guān)系,就可以得到地基土的動(dòng)剪切模量的表達(dá)式。
Base on the elastic half space theory of the dynamic foundation , analyzing the relationship between the vibration frequency and the dynamic shear modulus of the soil , a relationship between the vibration frequency and the self - property of the subsoil can be carried out . that is the expression about the relationship between the vibration frequency and the density of the soil can be carried out 通過(guò)采用動(dòng)力基礎(chǔ)半空間理論,分析錘擊產(chǎn)生的地基土的振動(dòng)頻率與地基土的動(dòng)剪切模量之間的相關(guān)關(guān)系,就又可以得到地基土自振動(dòng)頻率與土體本身性質(zhì)之間的關(guān)系,即與土體的密實(shí)度之間的關(guān)系。