Efforts to Repair Groundsill Bantar River Progo Special Region of Yogyakarta Indonesia
- 10.2991/aer.k.211106.081How to use a DOI?
- Local scouring; Concrete block; Riverbed area; Groundsill
Mount Merapi is one of the most active volcanoes in the world and produces large sediments when it erupts. The Progo River is included in the Mount Merapi area, so this river will be affected by material from the eruption and has the potential to significantly change the morphology of the Progo River. Bantar groundsill as a sediment control building on the Bantar Bridge is currently experiencing up to 92% damage in the riverbed area since its initial construction in 2010. This research was conducted based on direct observations using drone photos to determine the damage in the river bed area in 2018 and 2019 later. An inventory of the existing conditions in 2018 and 2019 was carried out which was then compared with the initial conditions of development accompanied by supporting data in the form of Observation of damage patterns in the river bed area; Bantar groundsill maps and Technical Planning. Efforts to improve the ground sill based on the results of this study are Replacement of concrete blocks installed on the damaged parts with the layout as during the initial construction. The subgrade is replaced with K-125 concrete so that there is no scour in the river bed area; The new concrete block uses concrete weighing 3.4 tons of K-175 quality and is connected by reinforcement; In addition, all the existing concrete blocks were moved downstream of the groundsill so that the sand miners could not approach the area downstream of the groundsill.
- © 2021 The Authors. Published by Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license.
Cite this article
TY - CONF AU - Yoseph Susanto AU - Edy Sriyono AU - Ilham Purnomo AU - Tania Bhakty PY - 2021 DA - 2021/11/23 TI - Efforts to Repair Groundsill Bantar River Progo Special Region of Yogyakarta Indonesia BT - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021) PB - Atlantis Press SP - 521 EP - 526 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.211106.081 DO - 10.2991/aer.k.211106.081 ID - Susanto2021 ER -