Authors :
Ghina Amalia, Maulid M. Iqbal, Ratna Dewi
Volume/Issue :
Volume 5 - 2020, Issue 4 - April
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/2WAgt17
Abstract :
Helical pile is an alternative foundation with
several advantages. It is easy and fast piling process,
does not cause vibrations that could disrupt the soil in
its environment and its bearing capacity is greater than
the ordinary pile foundation. The bearing capacity of
helical pile is contributed by the end bearing (Qb), shaft
friction bearing (QS), and cylindrical bearing (QCyc)
that is influenced by several factors such as diameter,
configuration, and spacing between helis. This research
was conducted experimentally in a laboratory using 2.1
m x 1 m x 0.95 m test box and sand as the medium. The
diameter of pile was 1.5 cm, the length was 63 cm and
the diameters of helical plates were 6 cm, 8 cm, and 10
cm. The spacing between helix of each pile were 20 cm,
15 cm, and 10 cm. The loading test was conducted using
Quick Maintained Load (QML) Test while each of the
test objects were analyzed using the Cylindrical Shear
Failure Method because the value of S/D was ≤ 3. The
result of this test were analyzed using Chin, Davisson
and de Beer methods to obtain the ultimate bearing
capacity.
Keywords :
Helical pile, Foundation Bearing Capacity, Diameter of Helix, Spacing between Helix, Helix Configuration.
Helical pile is an alternative foundation with
several advantages. It is easy and fast piling process,
does not cause vibrations that could disrupt the soil in
its environment and its bearing capacity is greater than
the ordinary pile foundation. The bearing capacity of
helical pile is contributed by the end bearing (Qb), shaft
friction bearing (QS), and cylindrical bearing (QCyc)
that is influenced by several factors such as diameter,
configuration, and spacing between helis. This research
was conducted experimentally in a laboratory using 2.1
m x 1 m x 0.95 m test box and sand as the medium. The
diameter of pile was 1.5 cm, the length was 63 cm and
the diameters of helical plates were 6 cm, 8 cm, and 10
cm. The spacing between helix of each pile were 20 cm,
15 cm, and 10 cm. The loading test was conducted using
Quick Maintained Load (QML) Test while each of the
test objects were analyzed using the Cylindrical Shear
Failure Method because the value of S/D was ≤ 3. The
result of this test were analyzed using Chin, Davisson
and de Beer methods to obtain the ultimate bearing
capacity.
Keywords :
Helical pile, Foundation Bearing Capacity, Diameter of Helix, Spacing between Helix, Helix Configuration.
