relative compaction meaning in English

相对密实度
相对压实度

And under the similar moisture content , lower relative compaction increases the vertical stress and the settlements of the construction either . comparing the influence to the construction under the changing of these two facts , we can find that the changing of moisture content effects the construction more than the changing relative compaction does
试验研究结果表明：在路面路基结构各土层压实密度基本一致的条件下，水的浸入(土层含水量增加)将会使路面路基结构的竖向压应力和沉降变形增大。
Through the static and standard traffic cyclic loads , the responses of the pavement and subgrade have been attained . the studies on these responses such as elastic deformations , accumulative settlements and stress have been made under the changed characters of subgrade , such as moisture content , relative compaction of subgrade . the results of the experiments show that superfluous moisture content increases the vertical stress and the settlements of the construction under the similar relative compaction
通过静力加载和模拟路面承受的竖向交通荷载的重复加载试验，研究了路面路基结构在双轮车辆荷载作用下的动静态响应，分析了路面路基结构在浸水状态(土层含水量增加)和压实密度降低等不利因数的影响下，路面路基各结构层的动静力学响应特性，如弹性变形、累积下沉、土压应力等的变化规律。