中文摘要：

采用改装的击实仪对赣南地区红砂岩风化土进行室内单点冲击试验．通过预埋带有编号的钢珠测试土体的水平和竖向位移，采用自制环刀取土，测试不同位置土体的密度变化．研究表明，在侧面刚性约束、底面柔性约束时，红砂岩风化土的密度随着总夯击能的增大而增大，增大的幅度在一定深度范围内是随着深度的增大而越来越小的，总夯击能越大．土颗粒竖向位移与深度之间的非线性关系越显著．在侧面和底面都刚性约束时．土颗粒水平位移的大小与其离夯点的水平距离先正相关．然后负相关．

英文摘要：

Indoor single point impact the modified compaction instrument. tests have been made for Gannan Soil density changes in different red sandstone weathering soil by using position are obtained through burying numbered steel balls to test horizontal and vertical displacement of soil and by using the self-made ring knife. The research shows that, in the side of rigid constraint and the bottom surface of flexible constraint, density of red sandstone weathering soil is increased along with the increase of total compaction energy, and the degree of increase in a certain depth range is decreased along with the increase in depth. The total compaction can be bigger when the nonlinear relationship between soil particle displacement and depth become more obvious. When the side and bottom surfaces are constraint, the horizontal displacement of soil particle size and the horizontal distance from the compaction points have a positive correlation.