PERILAKU SEDIMENTASI DAN PENGARUHNYA TERHADAP KINERJA SALURAN PADA JARINGAN IRIGASI WARU-TURI KANAN KEDIRI
ABSTRACT: The objectives
of this research
were to determine
the rate of
sedimentation in the primary,
secondary, and tertiary
channel; to determine
channel dimension changes caused by
sediment, and the
effect of sedimentation
to determine the
cross section channel’s specific
energy. This research consisted
of two stages.
First stage was
data collection i.e. sediment
sampling, measurement of
flow velocity, and
measurement of channel
dimensions. Second stage was laboratory analysis. Each stage was replicated three times
in 2-week intervals. Sediment sampling
was done directly
on the primary, secondary, and
tertiary irrigation channel
networks. Sedimentation rate in
primary irrigation channel at dry season was 54.99x10-6 tons/day, while
at the secondary was 0.88x10-6 tons/day,
and at the
tertiary was 0.65x10-6
tons/day. Primary channel with channel
cross sectional area
of 56.734 m2
reduced into 46.541
m2 due to
10.913 m2 area sedimentation. Secondary
channel with channel
cross sectional area
of 3.086 m2 reduced into 2.732 m2 due to 0.354 m2 area
of sedimentation. At tertiary channels with channel cross-sectional area
of 1.398 m2
reduced into 1.341
m2 due to
0.057 m2 area sedimentation. The rate of sedimentation
in the irrigation channel caused changes in the performance of
the channel, namely
the primary channel,
the channel only
worked for 76.93%, the secondary
channel was 94.2%, and 91.47% in tertiary canals.
Keywords: sedimentation, irrigation
channel, subsection
Penulis: Ruslan Wirosoedarmo,
Alexander Tunggul Sutan Haji, Estin D. Kristanti
Kode Jurnal: jppertaniandd110027
