Experimental study on creep consolidation behavior of intact loess

By taking the loess of Yangling District in Shaanxi Province as the research object,a uniaxial compression test is conducted to obtain the characteristic creep curve of intact loess under different water content and analyze the influence of water content and normal stress on creep consolidation characteristics.The result indicates: when the water content is invariable,the normal stress influences the creep consolidation characteristics obviously;the performance is bigger for the normal stress,the strain of loess is bigger;when the normal stress is invariable,water content obviously influences the creep consolidation characteristics;the higher water content,the bigger strain.According to the typical behavior of strain-time curves,a stress-strain-time relation is obtained by fitting test data;the relation better simulates the creep consolidation characteristics of intact loess in Yangling District by model test.Beside,the strain is simulated and forecast by BP artificial neural network.