@article{Galuh Chrismaningwang_Hary Christady Hardiyatmo_Agus Darmawan Adi_Teuku Faisal Fathani_2020, title={THE EFFECT OF INCREMENTAL CONFINING PRESSURE ON THE HYDRAULIC PROPERTIES OF PVD}, volume={19}, url={https://geomatejournal.com/geomate/article/view/1759}, abstractNote={<p>Prefabricated Vertical Drains (PVD) has become a standard method in soft soil improvements<br>project to accelerate the soil consolidation time. Due to PVD’s primary function as drainage, it should have<br>adequate hydraulic properties, i.e., discharge capacity and transmissivity. This paper evaluates the effect of<br>incremental confining pressure on three types of PVD using an apparatus adopting ASTM D4716, a mechanism<br>to determine the in-plane flow rate and transmissivity of geosynthetics. The apparatus is originally designed to<br>observe the discharge capacity of the PVD. Three types of PVD with different thickness and box channel core<br>shapes were tested under incremental confining pressure in the range of 50 to 200 kPa and varied hydraulic<br>gradients. The results indicated that the reduction of discharge capacity under incremental confining pressure<br>is higher for lower hydraulic gradients, and the reduction of discharge capacity is significant at high confining<br>pressure. The thickness of PVD held an essential role in transmissivity since PVD with greater thickness<br>provides higher discharge capacity and transmissivity.<br><br></p>}, number={73}, journal={GEOMATE Journal}, author={Galuh Chrismaningwang and Hary Christady Hardiyatmo and Agus Darmawan Adi and Teuku Faisal Fathani}, year={2020}, month={Sep.}, pages={41–48} }