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研究添加糯米浆的人工制备遗址土的基本特性,以期为土遗址修复的工作提供可靠试验依据。对加入相同糯米浆浓度、不同土与糯米浆质量比的人工制备遗址土,以及相同土与糯米浆质量比、不同糯米浆浓度的人工制备遗址土,进行电镜试验、渗透试验、侧限压缩试验、静力三轴试验和动力三轴试验,分别研究人工制备遗址土的微观结构特性、渗透性、压缩性、变形结构性参数、静力强度特性以及动力强度特性。主要得到以下结论:加入糯米浆的人工制备遗址土中相互独立的大孔隙增多,孔隙排列定向性强。随着糯米浆含量的增加,渗透系数逐渐减小。在同一土与糯米浆质量比下,干密度相同时,加入糯米浆密度为1.04 g/cm~3的人工制备遗址土的压缩指数最小,压缩模量最大,且在同一压力下,其结构性参数最大。随着糯米浆的密度或质量的增加,黏聚力c先增大后减小,存在一个峰值,而摩擦角不断减小,其余参数同样存在峰值。加入糯米浆使土的动强度与阻尼比有所提高,但动模量变化不大。综合分析,糯米浆密度为1.04 g/cm~3,土与糯米浆质量比为90∶10为人工制备遗址土的最优配比。
The basic characteristics of artificial preparation site soil added with glutinous rice slurry were studied in order to provide a reliable experimental basis for the work of soil site restoration. The artificial preparation site soil with the same consistency of glutinous rice slurry and the mass ratio of different soil to glutinous rice pulp and the artificial preparation site soil with the same mass ratio of glutinous rice slurry and different consistency of glutinous rice slurry were subjected to the electron microscope test, the penetration test, the confined compression test , Static triaxial test and dynamic triaxial test. The microstructural properties, permeability, compressibility, deformation structural parameters, static strength properties and dynamic strength characteristics of artificial preparation sites were studied respectively. The main conclusions are as follows: The artificial macrophytes added with glutinous rice slurry have more independent macropores and stronger orientation of the pores. With the increase of glutinous rice slurry, the permeability coefficient decreases gradually. In the same soil and glutinous rice pulp mass ratio, the same dry density, adding glutinous rice paste density of 1.04 g / cm ~ 3 artificial preparation site soil compressibility index of the smallest, the largest compressive modulus, and under the same pressure, the structural The largest parameter. As the density or mass of glutinous rice slurry increases, the cohesion c first increases and then decreases, and there is a peak, while the friction angle continuously decreases, and the other parameters also have the same peak. Addition of glutinous rice paste increased soil dynamic strength and damping ratio, but the dynamic modulus did not change much. Comprehensive analysis shows that the density of glutinous rice paste is 1.04 g / cm ~ 3, the mass ratio of soil to glutinous rice paste is 90:10, which is the optimal ratio of artificial preparation sites.