砂土介质振弦式土压力盒标定试验
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简筝,赵国彦,王玺,马举,肖屈日
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Calibration Tests of Vibrating Wire Earth Pressure Cells in Sand Soil
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Zheng JIAN,Guoyan ZHAO,Xi WANG,Ju MA,Quri XIAO
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表3 编号Ⅱ土压力盒气标试验数据
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Table 3 Test data of No.Ⅱ gas pressure calibration method
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| 压力/MPa | 测得频率值1/Hz | 测得频率值2/Hz | 频率平均值/Hz | 计算压力/MPa | 偏差/MPa | 计算误差（FS）/% |
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| 0.00 | 1 224 | 1 224 | 1 224 | 0.000 | 0.000 | 0.00 | | 0.20 | 1 364 | 1 364 | 1 364 | 0.227 | 0.027 | 1.68 | | 0.40 | 1 476 | 1 476 | 1 476 | 0.426 | 0.026 | 1.63 | | 0.60 | 1 581 | 1 581 | 1 581 | 0.627 | 0.027 | 1.69 | | 0.80 | 1 680 | 1 680 | 1 680 | 0.829 | 0.029 | 1.82 | | 1.00 | 1 771 | 1 771 | 1 771 | 1.026 | 0.026 | 1.61 | | 1.20 | 1 855 | 1 855 | 1 855 | 1.217 | 0.017 | 1.03 | | 1.40 | 1 935 | 1 935 | 1 935 | 1.406 | 0.006 | 0.40 | | 1.60 | 2 016 | 2 016 | 2 016 | 1.607 | 0.007 | 0.42 |
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