本文選題：土力學(xué) + 黃土��； 參考：《巖石力學(xué)與工程學(xué)報(bào)》2015年10期

【摘要】：含水率變化對(duì)黃土的震陷特性有著重要影響,其影響變化規(guī)律對(duì)黃土場(chǎng)地震陷的評(píng)價(jià)和預(yù)測(cè)工作具有重要意義。通過(guò)開(kāi)展一系列不同含水率條件下原狀黃土的動(dòng)三軸試驗(yàn),分析了含水率變化對(duì)黃土震陷的影響變化規(guī)律,并借此給出采樣黃土場(chǎng)地震陷性的評(píng)價(jià)結(jié)果和不同含水率條件下的震陷性預(yù)測(cè)結(jié)果。研究表明:震陷系數(shù)隨動(dòng)應(yīng)力和土樣含水率增加而增大,震陷臨界動(dòng)應(yīng)力隨含水率的增加而減小;不同性狀黃土震陷性質(zhì)差別較大,該場(chǎng)地土含水率≤5%時(shí),在VII,VIII度地震作用下基本不發(fā)生震陷;含水率5%以后,在VIII度地震作用下將產(chǎn)生震陷災(zāi)害。
[Abstract]:The variation of water content has an important influence on the seismic subsidence characteristics of loess, and its influence law is of great significance to the evaluation and prediction of seismic subsidence in loess field. Based on a series of dynamic triaxial tests of undisturbed loess under different water content conditions, the influence of water content change on loess seismic subsidence is analyzed. The evaluation results of seismic subsidence in loess field and the prediction results of seismic subsidence under different water cut are given. The results show that the seismic subsidence coefficient increases with the increase of dynamic stress and soil moisture content, and the critical dynamic stress decreases with the increase of soil moisture content, and the seismic subsidence properties of loess with different properties vary greatly, when the soil moisture content of the site is 鈮，

本文編號(hào)：1959959