巻号一覧
2 巻, 5 号
選択された号の論文の5件中1～5を表示しています
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小長井 一男, 田村 重四郎1992 年 2 巻 5 号 p. 5-12
発行日: 1992/03/15
公開日: 2010/04/30
ジャーナル フリーIn order to study dynamic stability of such granular structures as rock fill dams, rockmounds in the water and so on, a new experimental technique to visualize dynamic behaviorof particles interlocking in a model was developed. In the proposed method, a model ismade of glass particles and is put in the liquid with the same refractive index. Since theglass surface of fracture is chemically active, optical property of he surface differesslightly from what it used to be before fracture. Thus, by letting a laser-light-sheetpass through the model, it becomes possible to observe contour of each particle on thislight-sheet outlined by the diffused light. And, scanning of the laser-light-sheet enablesus to analyse the whole motion of the model.抄録全体を表示PDF形式でダウンロード (2004K) -
長谷川 高士, 村上 章1992 年 2 巻 5 号 p. 13-21
発行日: 1992/03/15
公開日: 2010/04/30
ジャーナル フリーThis paper describes the formulation of the back analysis procedure based on the extended Kalman filtering in conjunction with finite element effective stress analysis. The application of the back analysis procedure to several dam engineering problems is also discussed from the viewpoint of safety assessment of the dam and its foundation. Numerical studies reveal the applicability of the back analysis procedure to the prediction of dam behavior and provide useful information for the design of measuring locations.抄録全体を表示PDF形式でダウンロード (1287K) -
永山 功1992 年 2 巻 5 号 p. 22-32
発行日: 1992/03/15
公開日: 2010/04/30
ジャーナル フリーRCD Concrete is lean and extremely stiff concrete compacted by vibrating rollers, and is used in the RCD (Roller-compacted Concrete for Dams) Construction Method which has been developed as the rapid and economical construction of concrete dams. The properties of RCD concrete are determined not only by its mix proportion but also by compaction energy given to it.
In this paper, the large-sized specimens of RCD concrete are tested and the properties of RCD concrete are studied. The new procedure of mix design of RCD concrete is also proposed.抄録全体を表示PDF形式でダウンロード (1626K) -
大藪 勝美, 太原 浩, 遠藤 良直, 吉久 寧1992 年 2 巻 5 号 p. 33-40
発行日: 1992/03/15
公開日: 2010/04/30
ジャーナル フリーThe stabilized soil, which is made of soil and cement by mixing has been used for subgrades and base courses. In recent years, the stabilization has been extended to a variety of purposes, such as soil improvement against the soft ground.
As for the example of the application of the stabilized soil, the examine case is described in this report for the stabilization of the slope in a reservoir to increase durability against erosions by waves and the others.抄録全体を表示PDF形式でダウンロード (1595K) -
本條 忠應, 引地 隆久1992 年 2 巻 5 号 p. 41-51
発行日: 1992/03/15
公開日: 2010/04/30
ジャーナル フリーThe andesite being around the Oyamadam site is good in quality as the aggregate for concrete of dams and has been used in many dam cnstructions. But if the necessary amount of the andesite is picked in the quarry sites of the Oyamadam site, plenty of auto breccia ted andesite lava whitch is inferior to the andesite comes out at the same time and the cost of disposing it and slope protection of the quarry sites becomes large.
This paper shows the result of a study about application of Yabakei welded Tuff (YWT) to the aggregate for internal concrete of dams. YWT exists in large quantities near the Oyamadam site and is not so good in quality from the view points of Standards that it has not been used as aggregate. In this study various tests on YWT itself and the concrete of it, for example tests for soundness of aggregates, compressive strength, freezing and thawing and so on were carryed out. It is recognized that YWT is good aggregate for internal concrete of dams from the results of these tests.抄録全体を表示PDF形式でダウンロード (2000K)
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