砂土介质振弦式土压力盒标定试验
简筝,赵国彦,王玺,马举,肖屈日

Calibration Tests of Vibrating Wire Earth Pressure Cells in Sand Soil
Zheng JIAN,Guoyan ZHAO,Xi WANG,Ju MA,Quri XIAO
表4 编号Ⅲ土压力盒气标试验数据
Table 4 Test data of No.Ⅲ gas pressure calibration method
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)/%
0.001 1421 1421 1420.0000.0000.00
0.501 3441 3431 3440.5050.0050.20
1.001 5201 5201 5201.0140.0140.58
1.501 6771 6771 6771.5210.0210.82
2.001 8171 8171 8172.0140.0140.55
2.501 9441 9451 9452.4970.1110.11