為探討可變形粒子床內粒子的比表面積隨孔隙度變化之關係，本研究由立方規則堆積之可變形粒子床受單軸向壓縮後之變形來探討可變形粒子受壓縮後對粒子床結構所產生的變化。本研究首先針對單顆粒子進行機械壓縮實驗，並推導一黏彈性固體大變形之理論模式，輔以說明實驗結果。此外，並基於此單顆粒子的變形理論模式，推導規則堆積粒子床受壓縮後之比表面積與孔隙度間的理論關係式如下：□＝□理論演導過程中考慮了粒子接觸面大小估計法的修正及因變形而導致之總表面積之變化，因此將可應用於各類牽涉可變形粒子床之壓縮程序中的比表面積比的估算。

　　　　　In order to study the variation of structure morphology of simple cubic packing containing deformable particles under uni-axial compression, a theoretical contact model based upon the modified Hertz theory was proposed. Effect of particle deformation due to mechanical loading on the reduction of porosity was studied to examine how this variation led to the increase in contact area between particles. Both theoretical and experimental results show that the theoretical model can be used to predicate the mechanical behaviors of gel particle under mechanical compression well. Based upon the theoretical derivation and the verification of experimental results, a correlated relationship between specific surface area ratio and bed porosity is presented as follow:□＝□This theoretical relation can be used to estimate the variation of specific surface area ratio with porosity.