Based on one-dimensional Terzaghiconsolidationtheory, average percent consolidation is calculated.
结合一维太沙基固结理论，推求某时刻的平均固结度。
2
According to Terzaghiconsolidationtheory, the partial differential equation and filtration formula of the change diameter screw compression were induced.
根据太沙基固结理论推导出了变径螺旋压榨压方程，得出了压榨速率的表达式。
3
Combined with the previous results and the property of PCC pile, based on Terzaghiconsolidationtheory, mechanism of negative skin friction of PCC pile has been studied.