すべり面拡大モデルによるクリープ現象の解析

DOI Web Site 被引用文献1件

書誌事項

タイトル別名
  • Analysis of Creep Phenomenen by the Slip Surface Enlarging Model
  • スベリメン カクダイ モデル ニ ヨル クリープ ゲンショウ ノ カイセキ

この論文をさがす

説明

The creep curve of landslide is composed of three parts in the process of strain to rupture. The curve of primary creep is approximated in the growth function . The secondary steady creep is given in a linear function. The tertiary creep to rupture is shown in an exponential curve . In order to forecast the rup ture time till the final. abrupt failure, the mathematical model on these creep curves was analyzed on the basis of the idea that the stress concentration would drive a progressive failure in landslide. It was presumed that the strain velocity of landslide depending on the stress would concentrate on the unbroken effective sphere which resisted the shear force in the potential sliding surface . Then the relationship between the concentrated stress and the strain velocity was given as follows, de/dt=-A/Sa, where e, t, A, and S are strain, time, coefficient, and effective unbroken sphere in the sliding surface respecti ly. By integrating the equation for the exponential power a=-1, 0, 1, ……, n at the initial condition S=S0 to t=0 and at the terminal condition S=0 to rupture time t=tr. the solutions corresponding to the each creep curve could be deducted and, given the fundamental base to fOrecast tee final rupture time.

収録刊行物

  • 地すべり

    地すべり 25 (1), 1-6_1, 1988

    公益社団法人 日本地すべり学会

被引用文献 (1)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ