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: 136-140頁 著者(和): 青木 謙治, 稲葉 武史, 渥美 博行, 谷野 郁子 タイトル(和): 地質統計手法による地盤の弾性破速度構造の推定法 抄録(和):
- キーワード(和): - 掲載雑誌(英): PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者(英): Kenji AOKI, Takeshi INABA, Hiroyuki ATSUMI, Ikuko YANO タイトル(英): APPLICATION OF GEOSTATISTICS TO OBTAIN THE GEOLOGICAL PROFILE BY SEISMIC PROSPECTING 抄録(英):
This paper describes the application of geostatistical method which is used to estimate the distribution of the thickness of weatherd layers by seismic prospecting results. Generally the weatherd layer is thick at ridges and thin at vallies. Therefore it is necessary to consider this topographic characteristics at the interpretation and extrapolation of the results of measured velocity structure. To obtain accurate distribution of weatherd layer to the whole area from Iimitted measured results, following procedure had been adopted and their validity was studied. 1) The correlation between thickness of weatherd layer and topographical profile was calculated. 2) On computing variogram, thickness value of weathering was corrected by this correlation. 3) Using corrected thickness data, overall distribution of weatherd layer thickness out of measured data is estimated by kriging. Using thie method, following results were obtained. 1) By the correction of weatherd layer thickness based on topographic value, the sill of variogram decreased and the range increased. 2) The accuracy of this method was confirmed by comparing estimated thickness with measured value. キーワード(英): - 記事区分 - 区分    委員会論文集