ANALISA INSTRUMENTASI GEOTEKNIK UNTUK EVALUASI KEAMANAN BENDUNGAN URUGAN TANAH DI LODAN KABUPATEN REMBANG
ABSTRACT: Lodan dam is a dam
made to stem Lodan River, located in the village Lodan, District Sarang,
Rembang, Central Java. One way to determine the level of safety of dams is to
use geotechnical instrumentation equipment consisting of water pressure
instrumentation, deformation instrumentation and seepage instrumentation. This
thesis discusses the pore water pressure were measured by means of piezometers.
Monitor leaks and seepage using V-Notch Weir. And deformation using settlement
survey point. From piezometer observation, it appears that the device responds
to changes in water level only FP1, FP, FP3, PP6, PP10, PP13 and PP14 so that
need for further treatment. For phreatic line drawing is still safe because the
phreatic line does not cut the dam body. Seepage discharge is very small at
less than 0.28 l / min / m, so it is still within safe limits. For vertical
deformation observation is still safe because the SI value ≤ 0.02. In general,
the security level Dam Lodan still within normal limits. Only the piezometers
instruments that need further treatment.
Penulis: deni setya aprianto,
Ricky Eko Maulana, Indrastono Dwi Atmanto, Bambang Pardoyo
Kode Jurnal: jptsipildd150211
