CAJ | 학술논문

塑料排水板为竖向排水体的排水加固法在软土地基处理中应用非常广泛。在塑料排水板长期工作状态下，由于土体固结变形、滤膜堵塞和滤膜在土压力作用下嵌入排水板板芯导致纵向通水面积降低等因素的综合影响，排水板的纵向通水量会随着时间而变化，因此对排水板加固软基效果产生一定的影响。本文通过室内模型试验研究，分析了排水板在工作状态下排水板加固软基的工作性能，最后对比了有限元计算结果，发现排水板弯曲变形对排水板长期工作性能有比较大的影响。
소료배수판위수향배수체적배수가고법재연토지기처리중응용비상엄범。재소료배수판장기공작상태하，유우토체고결변형、려막도새화려막재토압력작용하감입배수판판심도치종향통수면적강저등인소적종합영향，배수판적종향통수량회수착시간이변화，인차대배수판가고연기효과산생일정적영향。본문통과실내모형시험연구，분석료배수판재공작상태하배수판가고연기적공작성능，최후대비료유한원계산결과，발현배수판만곡변형대배수판장기공작성능유비교대적영향。
Prefabricated vertical drains (PVDs) have been used successfully in many soft soil improvement projects. Buckling of PVD strips due to settlement of soil, clogging effect of the filters and reduction of drainage area due to soil pressure acting on the filter will reduce the discharge capacity of PVD strips. The modeling test is conducted to investigate the long-term performance of PVDs. With the results compared to the numerical study, it is found that the bending deformation of PVDs due to settlement of soil has great influence on long-term performance of PVDs.