File:Roscoe surface.gif
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![File:Roscoe surface.gif](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Roscoe_surface.gif/800px-Roscoe_surface.gif?20110420114029)
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[edit]DescriptionRoscoe surface.gif |
English: Roscoe Surface, plotted by Cambridge Method.
Lines on Roscoe Surface shows same line as each stress paths, which is parallel to axis p' for Consolidated Undrain(CU), non-parallel for Consolidated Drain(CD). Symbols on this figure are defined as followings.
日本語:ロスコー面(ケンブリッジ法でプロット)。
ロスコー面上の各線はそれぞれ応力径路に対応しており、p'軸に平行なものが圧密非排水(CU)、平行でないものが圧密排水(CD)。 図中の各記号は以下の通り。
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Date | |
Source | Own work |
Author | aokomoriuta(青子守歌) |
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gnuplot code
[edit]English: All source code are also available same license as this file.
日本語:ソースコードはファイルと同じライセンスで利用可能です。
roscoe.plt
[edit]# parametric with p&v set parametric set dummy p,v # constant N = 2.5 lambda = 0.12 gamma = 2.45 M= 1.40 p0 = 200 #function NCL(p) = N - lambda * log(p) # v NCL_p(v) = exp((N - v)/lambda) # p CSL1(p) = gamma - lambda * log(p) # v CSL2(p) = M * p # q CSL3(v) = M * exp((gamma-v)/lambda) # q CSL1_p(v) = exp((gamma - v)/lambda) # p CSL_CU_p(p0) = p0 * exp((gamma - N)/lambda) CSL_CU_v(p0) = NCL(p0) CSL_CU_q(p0) = CSL2(CSL_CU_p(p0)) CSL_CD_p(p0) = 1/(1-M/3.0) * p0 CSL_CD_v(p0) = CSL1(CSL_CD_p(p0)) CSL_CD_q(p0) = CSL2(CSL_CD_p(p0)) #other constant vtics = 0.1 ptics = 100 qtics = 200 max_v = ceil(NCL(100) /vtics)*vtics max_p = ceil(CSL_CD_p(300)/ptics)*ptics max_q = ceil(CSL2(max_p) /qtics)*qtics min_v = int(CSL1(max_p) * 0.98 /vtics)*vtics min_p = 0 min_q = 0 max_x1 = max_p max_x2 = max_v min_x1 = -1 min_x2 = min_v #range set urange[min_x1:max_x1] # p set vrange[min_x2:max_x2] # v set xrange[min_v:max_v] # p set yrange[min_p:max_p] # v set zrange[min_q:max_q] # q #ticslevel set ticslevel 0 #label set xlabel "v" set ylabel "p'" set zlabel "q" #grid set xtics vtics nomirror set ytics ptics nomirror set ztics qtics nomirror set mxtics 2 set mytics 2 set mztics 2 set grid xtics ytics ztics mxtics mytics mztics front lt -1 lw 1, lt 0 lw 1 #border unset border # surface settings set isosample 100 set view 60,120,1,1 # stress path SP_p(p0, v) = p0 + (CSL_CD_p(p0) - p0) * (v - NCL(p0))/(CSL_CD_v(p0) - NCL(p0)) SP_v(p0, v) = (v > NCL(p0)) ? NCL(p0) : ((v < CSL_CD_v(p0))? CSL_CD_v(p0) : v) SP_q(p0, v) = CSL_CD_q(p0) * (v - NCL(p0)) / (CSL_CD_v(p0) - NCL(p0)) # plot splot SP_v(p, v), SP_p(p, SP_v(p, v)), SP_q(p, SP_v(p, v)) title "Roscoe" ls 2 lw 0.5, \ NCL(p), p, 0 title "NCL" ls 1 lw 3, \ CSL1(p), p, 0 notitle ls 3 lw 2, \ min_v, p, CSL2(p) notitle ls 3 lw 2, \ v, 0, CSL3(v) notitle ls 3 lw 2, \ CSL1(p), p, CSL2(p) title "CSL" ls 3 lw 3 # create gif theta = 0 set terminal gif notransparent size 1280, 960 font "Times New Roman" load "roscoe_loop.plt" set output set terminal wxt
roscoe_loop.plt
[edit]set view 60,theta,1,1 set output sprintf("roscoe%3d.gif", theta) replot theta = theta + 5 if(theta<360) reread
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:40, 20 April 2011 | ![]() | 1,280 × 960 (2 MB) | 青子守歌 (talk | contribs) | {{subst:User:青子守歌/own work|Figures| |en = Roscoe Surface, plotted by Cambridge Method. Lines on Roscoe Surface shows same line as each stress paths, which is parallel to axis p' for Consolidated Undrain(CU), non-parallel for Consolidated |
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