掲載雑誌(和): 岩盤力学に関するシンポジウム講演論文集 Vol: 21巻 年: 1989年 頁: 151-155頁 著者(和): 世一 英俊, 蓮井 昭則, 平井 光之, 中川 浩二 タイトル(和): 孔間弾性波測定によるグラウチング前後の改良効果の判定について 抄録(和):
- キーワード(和): - 掲載雑誌(英): PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者(英): H. YOUICHI, A. HASUI, M. HIRAI, K. NAKAGAWA タイトル(英): ON EVALUATION OF GROUTING EFFECT FOR ROCK-FOUNDATION BY MEANS OF CROSSHOLE SEISMIC EXPLORATION TECHNIQUE 抄録(英):
The crosshole seismic exploration technique has been studied ' using an original prototype equipments. This technique was applied to rock mass to quantitatively estimate the grouting effects. The following results are obtained: -This technique was a powerful measure for checking the reinforced effects by grouting. -Changes of seismic wave velocity were 5 to 14% in V■ , 8 to 25% in V■ , respectvely. -The incremental rate of dynamic elastic modulus was 50% of maximum. -The smoller the dynamic elastic modulus before grouting was, the bigger the change ratio become. キーワード(英): - 記事区分 - 区分    委員会論文集