By weight method, the water absorption law and its effect on the propagation reliability of plastic nonel tube under different water dipping conditions were investigated in this paper.
文章用重量法研究了不同浸水条件下导爆管的吸水规律及其对传爆可靠性的影响。
Variation law of water absorption, dilation stress and dilation deformation with time were get from the water-absorption and dilation experiments.
通过对板岩试样进行泡水试验及膨胀试验，建立起板岩在吸水后吸水率、膨胀应力及膨胀变形随时间的变化规律；
应用推荐