凍結融解による岩石の破壊過程 : 破壊サイクルの分布特性

概要

論文の詳細を見る
The failure process of rocks by freezing and thawing cycles cannot be fully understood. However, it is very important to confirm this process for the assessment of durability of material rocks for use as riprap of rockfill dams. The auther has been conducting laboratory freezing and thawing test on material rocks to confirm this process. From a series of tests, the following results have been obtained. 1) The number of freezing and thawing cycles to failure (The auther defined this cycles as freezing and thawing life) shows wide fluctuation and this phenomenon is an essential properties of the failure process of rocks by freezing and thawing cycles. 2) Expontential, Weibull, McCall and gamma distributions are all applicable to describe the distribution characteristics of freezing and thawing lives of rocks. 3) From the distribution characteristics of freezing and thawing lives, and the change of physico-mechanical properties, it is concluded that the failure process of rocks by freezing and thawing cycles is serial and cumulative like the fatigue failure process of metal.
一般社団法人日本応用地質学会の論文
1981-12-30