论文部分内容阅读
季节性的温度变化和日温差变化,导致路基土吸力变化,所以研究温度对非饱和路基土吸力的影响意义较大。用连通侧管式张力计测得路基土在含水量不变化时不同温度下的基质吸力值,发现基质吸力值并非恒定,而是随着温度的升高,近似线性降低,随着温度的降低,其值线性升高。分析温度吸力影响的机理后,提出了温度对基质吸力影响的修正公式,使得基质吸力的测量更为精确。
Seasonal changes in temperature and daily temperature difference, resulting in subgrade soil suction changes, so the temperature on unsaturated soil subsoil suction is more meaningful. The subsidence of subgrade soil measured at the same temperature at different water contents measured by the communicating side tube tensiometer found that the matric suction value was not constant, but decreased linearly with increasing temperature. With the decrease of temperature, , Its value increases linearly. After analyzing the mechanism of the influence of temperature suction, the correction formula of the influence of temperature on the suction of substrate is proposed, which makes the measurement of substrate suction more accurate.