本文選題：動(dòng)三軸試驗(yàn) + 相對(duì)動(dòng)應(yīng)力��； 參考：《水文地質(zhì)工程地質(zhì)》2017年01期

【摘要】：選取寧波飽和重塑黏質(zhì)粉土,開展了黏質(zhì)粉土的動(dòng)三軸試驗(yàn),研究了圍壓、動(dòng)應(yīng)力、排水條件、溫度及頻率等因素對(duì)土動(dòng)力特性的影響,提出了采用相對(duì)動(dòng)應(yīng)力來(lái)分析不同圍壓、不同動(dòng)應(yīng)力下土的累積塑性應(yīng)變變化規(guī)律,并建立了孔壓—累積塑性應(yīng)變關(guān)系的經(jīng)驗(yàn)公式,結(jié)果表明:累積塑性應(yīng)變隨著相對(duì)動(dòng)應(yīng)力的增大而增大;溫度越高,累積塑性應(yīng)變值越小,且相同溫度增量(△T=15℃)條件下的累積塑性應(yīng)變?cè)隽恳搽S之減小;建立的孔壓-累積塑性應(yīng)變經(jīng)驗(yàn)公式可用于長(zhǎng)期振動(dòng)荷載作用后黏質(zhì)粉土的孔壓計(jì)算。
[Abstract]:The dynamic triaxial test of the clay silt was carried out in Ningbo saturated remolded clay. The effects of confining pressure, dynamic stress, drainage conditions, temperature and frequency on the dynamic characteristics of the soil were studied. The variation law of cumulative plastic strain of soil under different confining pressure and different dynamic stress is analyzed by using relative dynamic stress, and the empirical formula of the relationship between pore pressure and cumulative plastic strain is established. The results show that the cumulative plastic strain increases with the increase of relative dynamic stress, the higher the temperature, the smaller the cumulative plastic strain value, and the smaller the cumulative plastic strain increment is at the same temperature increment (T _ (15 鈩，

本文編號(hào)：2082704