CHANGES IN INTACT ROCK DAMAGE PARAMETERS DUE TO CHEMICAL EFFECTS AND THEIR INFLUENCE ON FAILURE PHENOMENA
To investigate the effect of the chemical degradation on the mechanical behavior, the rock samples preserved in the 10 % salt water and distilled water for 90 days are subjected to the unconfined compression test. The rock samples were obtained from Aspo HRL in Sweden. The damage parameters were identified from the unconfined compression tests for two types of rock samples. Beforehand, the characteristics of the effect of each damage parameter on the mechanical behavior were investigated by numerical simulation. By investigating the change in the damage parameters of the chemically degraded rock, the effect of the chemical degradation was tried to infer through the results of parametric study. Moreover, the 3-D finite element simulation was carried out to examine the effect of change in the damage parameters due to chemical effect in detail.
A.Kobayashi K.Yamamoto S.Aoyama M.Chijimatsu T.Fujita
Graduate school of agricultural science, Kyoto university, Japan Hazama Corporation, Japan Japan Atomic Energy Agency (JAEA), Japan
国际会议
南京
英文
355-360
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）