| 计算点号 | 深度zi /m | 本文解(不考虑挡墙厚度)较有限元法(不考虑挡墙厚度)误差/% | 流网法较有限元法(不考虑挡墙厚度)误差/% | 一维渗流较本文解(不考虑挡墙厚度)误差/% | 本文解(考虑挡墙厚度)较有限元法(考虑挡墙厚度)误差/% | 本文解(不考虑挡墙厚度)较本文解(考虑挡墙厚度)误差/% |
| a | 0 | 0 | 0 | 0 | 0 | 0 |
| b | 5 | 1.96 | -4.53 | 27.44 | 1.84 | -5.04 |
| c | 9 | 1.96 | -6.94 | 29.63 | 1.91 | -5.46 |
| d | 12 | 1.96 | -9.52 | 32.94 | 1.83 | -6.12 |
| e | 15 | 2.00 | -7.73 | 40.12 | 1.83 | -7.71 |
| f | 17 | 1.20 | -4.30 | 55.53 | 2.75 | -11.77 |
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Comparison of errors among different methods for water pressure at each point on retaining wall outside foundation pit
Figures of the Article
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Model for two-dimensional seepage around foundation pit
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Comparison between solution in this paper and calculated results of water head by finite element software
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Comparison of calculation results of water pressure among different calculation methods
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Effects of c on distribution of total water head around foundation pit
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Effects of a on distribution of total water head around foundation pit
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Effects of h2 on distribution of total water head around foundation pit
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Effects of d on distribution of total water head around foundation pit
Tables of the Article
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Parameters of seepage model for foundation pit (单位: m)
b c h1 h2 a d 23 7 15 9 6 2 -
Distribution of water pressure at each point on retaining wall outside foundation pit
计算点号 深度zi /m 水压力/kPa 一维渗流 本文解(考虑挡墙厚度) 有限元法(考虑挡墙厚度) 流网法 有限元法(不考虑挡墙厚度) 本文解(不考虑挡墙厚度) a 0 0 0 0 0 0 0 b 5 49.00 40.49 39.76 36.00 37.71 38.45 c 9 88.20 71.97 70.62 62.10 66.73 68.04 d 12 117.60 94.23 92.54 78.50 86.76 88.46 e 15 147.00 113.67 111.63 94.90 102.85 104.91 f 17 166.60 121.41 118.16 101.30 105.85 107.12 -
Comparison of errors among different methods for water pressure at each point on retaining wall outside foundation pit
计算点号 深度zi /m 本文解(不考虑挡墙厚度)较有限元法(不考虑挡墙厚度)误差/% 流网法较有限元法(不考虑挡墙厚度)误差/% 一维渗流较本文解(不考虑挡墙厚度)误差/% 本文解(考虑挡墙厚度)较有限元法(考虑挡墙厚度)误差/% 本文解(不考虑挡墙厚度)较本文解(考虑挡墙厚度)误差/% a 0 0 0 0 0 0 b 5 1.96 -4.53 27.44 1.84 -5.04 c 9 1.96 -6.94 29.63 1.91 -5.46 d 12 1.96 -9.52 32.94 1.83 -6.12 e 15 2.00 -7.73 40.12 1.83 -7.71 f 17 1.20 -4.30 55.53 2.75 -11.77 -
Distribution of water pressure at each point on retaining wall inside foundation pit
计算点号 深度zi /m 水压力/kPa 一维渗流 本文解(考虑挡墙厚度) 有限元法(考虑挡墙厚度) 流网法 有限元法(不考虑挡墙厚度) 本文解(不考虑挡墙厚度) d 0 0 0 0 0 0 0 e 3 29.40 46.23 45.90 42.50 50.22 50.68 f 5 49.00 82.34 83.90 75.13 95.36 94.13 -
Comparison of errors among different calculation methods of water pressure at each point on retaining wall inside foundation pit
计算点号 深度zi /m 本文解(不考虑挡墙厚度)较有限元法(不考虑挡墙厚度)误差/% 流网法较有限元法(不考虑挡墙厚度)误差/% 一维渗流较本文解(不考虑挡墙厚度)误差/% 本文解(考虑挡墙厚度)较有限元法(考虑挡墙厚度)误差/% 本文解(不考虑挡墙厚度)较本文解(考虑挡墙厚度)误差/% d 0 0 0 0 0 0 e 3 0.92 -15.37 -41.99 0.72 9.63 f 5 -1.29 -23.38 -47.94 -1.86 14.32
