RIVER CLIFF REINFORCEMENT EFFORTS BY APPLICATION OF COMBINATION OF DAM STONE, GABION, TETRAPOD, AND BAMBOO FLOW ALIGNER

Authors

  • Dian Eksana Wibowo Civil Engineering and Planning Education, Yogyakarta State University, Indonesia
  • Didik Purwantoro Civil Engineering and Planning Education, Yogyakarta State University, Indonesia
  • Satoto Endar Nayono Civil Engineering and Planning Education, Yogyakarta State University, Indonesia
  • Indra Bayu Wardhana Civil Engineering and Planning Education, Yogyakarta State University, Indonesia
  • Yoga Bayu Prabowo Civil Engineering and Planning Education, Yogyakarta State University, Indonesia

DOI:

https://doi.org/10.33603/jgst.v4i1.3152

Abstract

The purpose of research : (1) determine the ratio between the combination of retrofitting tetrapod-bamboo alignment-tetrapod   (FP1); bamboo flow aligner-tetrapod-bamboo flow aligner (FP2); Check Dam Stones-Gabion-Check Dam Stones (FP3); Gabion-Check Dam Stones-Gabion (FP4)? (2) The effectiveness of the combination of strengthening the tetrapod-bamboo aligner-tetrapod   (FP1); bamboo flow aligner-tetrapod-bamboo flow aligner (FP2); Check Dam Stones-Gabion-Check Dam Stones (FP3); Gabion-Check Dam Stones-Gabion (FP4)?

Using the experimental method by creating a Labolatorium scale river model. Testing using clay and sand. The test model is a cliff without reinforcement and cliff with a combination of reinforcement between tetrapods; bamboo flow aligner; check Dam stones and Gabions. Testing by flowing water for 180 minutes/3 hours with a constant discharge of 7.07 liters/second, the installation of reinforcement is 51 cm apart.

The results showed that (1) In general, the effect of the FP1 reinforcement installation was the variation of the combination that was considered the best in reducing scouring on the cliffs and riverbeds. (2) Variation of the combination of FP1, is more effective in reducing the scouring that occurs. At the beginning of the channel turns from STA 00-06 effectively used tetrapod installation, with scours that occur as big as -5 cm, in the middle of the STA channel 06-16 effectively using the installation of bamboo flow aligner, scours that occur as much as -1.5 cm, whereas at At the end of the turn, STA 17-24 used tetrapod installation, scouring by -3.8cm.

Keyword: scouring, bamboo flow aligner, tetrapod.

References

Daoed, Darwizal, Februarman, M. Subhi NH., (2009), Pengaruh Bentuk dan Superelevasi Tikungan Terhadap Pola Penyebaran Sedimen, Laporan Hasil Penelitian Fundamental, Dikti Dep. Diknas.

Das, B.M., 1995. Mekanika Tanah (Prinsip-prinsip Rekayasa Geoteknis), Penerbit Erlangga, Jakarta.

Hardiyatmo, H. C., 1992. Mekanika Tanah. Gramedia Pustaka Umum. Jilid I Jakarta.

Legono D., 1986. Behavior of Flow in Open Chan¬nel Bend, 1986

Melody, 2018. Tugas Akhir Pengaruh Pemasangan Tetrapod dengan Variasi Jarak , PTSP FT UNY.

SNI 8137., 2015. Pengukiran Debit Pada Saluran Terbuka Menggunakan Bangunan Ukur Tipe Pelimpah Atas: Perencanaan umum. Jakarta.

SNI 03-3977., 1995. Detail Tata Cara Pembukaan Peta Kemiringan Lereng Menggunakan Rumus Horton: Perencanaan umum. Jakarta.

Syarvina., 2013. Mekanisme Gerusan Lokal Pada Pilar Silinder Tunggal dengan Variasi Debit. Tugas Akhir. Universitas Sumatera Utara.

Wibowo, D. E., Wardani, D. W. T., & Vicky, E. C. P., 2019. The Effect of Check Dam Installation and Gabion with Distance Variation at River Turn using a Laboratory Test Model. In IOP Conference Series: Earth and Environmental Science (Vol. 366, No. 1, p. 012012). IOP Publishing.

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Published

2020-01-24

Issue

Vol. 4 No. 1 (2020): Journal of Green Science and Technology, Vol.4 No.1 (2020)

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