Page - 312 - in Book of Full Papers - Symposium Hydro Engineering

Elv. Elv. Elv. Elv. Elv. A. Brantas River - Spoilbank I 2.30 750 311 45 45 311 45 - Spoilbank A 2.92 600 311 60 60 311 60 60 60 - Spoilbank D 1.45 450 45 311 311 50 50 50 - Spoilbank D1 2.50 600 60 60 309,5 20 309,5 100 100 100 - Spoilbank Kemiri 3.70 800 200 70 308,5 86 308,5 100 100 100 - Spoilbank Gampingan 4.50 1.150 180 180 289 180 180 180 284 B. Lesti River - Spoilbank C 3.60 850 308,5 100 100 308,5 50 35 15 100 100 - Spoilbank C1 0.75 750 30 30 308,5 29 308,5 30 30 30 - Spoilbank B 3.20 400 308,5 308,5 100 100 100 - Spoilbank B1 1.20 400 308,5 21 308,5 50 50 50 Built Bamboo Fance (BF) Spoilbank Built New Spoilbank 2 TOTAL Loading in Spoilbank Spoilbank Half Fill & Ready to use New Land Built Spoilbank (Land Available) Add Spoilbank Capacity (Land Fill) Add Spoilbank Capacity (Bamboo Fence) Hauling Spoilbank Hauling & Add Spoilbank Capacity 2019 2020 370 - - 185 250 475385 330 Repaired -- -- - - 100 - - - - - - - 180 160 - - - 180 - 205 150 305 100 - - 60 - 30 156 155 LOCATION 2016 2017 2018 Area (ha) Distance to Intake (m') Year c This arrangement is required because every spoilbank loaded must be dried in advance up to +2 years to be reload, and to support the spoilbank drying period acceleration we also make efforts to add technology to the spoilbank construction that is complete with horizontal vertical drain so that the water of the sediment material can immediately flow out so that drying can be faster with an estimated time of 1 year faster. In addition we also make efforts on land acquisition in downstream dam to increase the spoilbank area in the area spoilbank Gampingan. Table 2. Scheme of Spoilbank Management of Sengguruh Dam Figure 8. Design of Vertical Horizontal Drainage Conception de drainage horizontal vertical 312