TY - JOUR AU - Galuh Chrismaningwang, AU - Hary Christady Hardiyatmo, AU - Agus Darmawan Adi, AU - Teuku Faisal Fathani, PY - 2020/09/30 Y2 - 2024/03/29 TI - THE EFFECT OF INCREMENTAL CONFINING PRESSURE ON THE HYDRAULIC PROPERTIES OF PVD JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 19 IS - 73 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/1759 SP - 41-48 AB - <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> ER -