PERENCANAAN CHECK DAM SUNGAI GLUGU KABUPATEN GROBOGAN, JAWA TENGAH
ABSTRACT: Glugu River is a
tributary of the Lusi River under the authority of the Central River Region
Pemali - Juana, precisely located in the administrative area of the Grobogan
Regency. Location of Glugu River located upstream, gave effect to the
degradation of the river channel, so as to stabilize the river flow necessary
to design coservation structure on Glugu River, that is check dam.The data used
for design check dam are the primary data (geotechnical, geometry Glugu River,
and water when the flood elevation data) and secondary data (topographic maps
and rainfall data). These data are used as a basis for planning the main dam,
sub dam, apron, complement structure, stability control of structure, and as
reference for determining the budget plan. From the calculation, the height of
main dam is 5.00 m, the width spillway of main dam and sub dam are 41.00 m, the
width crest of main dam is 2.50 m and the width crest of sub dam is 1.50 m, the
upstream slope of the main dam and sub dam are 1 : 0.9, the downstream slope of
the main dam and sub dam are 1 : 0.2, the width wing of main dam is 2.50 m and
the width wing of sub dam is 1.50 m, the height of sub dam is 1.80 m, the
length of apron is 17.87 m, the side of square -shaped drip holes are 0.5 m as
16 pieces. Check dam can accomodate 17112.29 m3of sediment and will be full for
1.27 years.The total cost to build the check dam of Glugu River is IDR 2,418,643,000.00
include VAT 10% and 210 days work construction.
Penulis: Abhibawa Tegar
Kusuma, Deny Wijayanti, Pranoto Sapto Atmojo, Sutarto Edhisono
Kode Jurnal: jptsipildd150154
