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Alternative Analysis of Flood Control Downstream of Way Sekampung River Sugito SUGITO; Maulana Febramsyah
International Conference on Engineering and Technology Development (ICETD) 2013: 2nd ICETD 2013
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.352 KB)

Abstract

Downstream part of the watershed is an area of lowland Sekampung with +3.00 to +4.00 elevation above sea level. Area located between the border regions of South Lampung regency and East Lampung. Originally this area was flooded reservoir area, the Swamp Sragi and surrounding areas, but along with the development of this area is used as a residential area, pertaniandan pond area for the people around the area. Padatahun 2002 River Way Sekampung experience overflow caused flooding in downstream areas which suffered losses of up to 38 billion rupiahIn this study analyzed the incidence of flooding that may occur based on rainfall data available. Based on the results of the input stream and cross sectional design flood discharge is seen that when the flood began when the river reaches flood discharge Q50-year anniversary.In this study flood control analysis performed on the three methods are: the construction of levees, making retention ponds and dredge rivers. The third input method results in HEC RAS 3.1.3 shows that building levees to reduce flooding by 32%, on a flood retention pond can be reduced up to 45% and normalization of the river is only able to reduce flooding by 20%. Most effective flood management recommendation is to build two retention ponds and technical cost reduction by flooding.
Pengaruh Filler Serbuk Kaca terhadap Karakteristik Beton Substitusi Pasir Besi dengan Curing Air Panas Restu Meihadi; Sugito Sugtio
Jurnal Teknik Sipil Vol 13, No 1 (2022): April
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36448/jts.v13i1.2618

Abstract

Penelitian ini bertujuan untuk meningkatkan mutu beton dengan waktu produksi yang cepat. Bahan campuran berupa serbuk kaca digunakan sebagai filler (bahan pengisi) dengan variasi 1%, 2%, 3%, 4%, 5% dan 6% untuk menentukan kadar filler serbuk kaca optimum dan didapat kadar optimum sebesar 3%, kemudian proporsinya dibuat sebagai benda uji untuk pengujian lanjutan dengan curing air panas. Digunakan data sekunder berupa substitusi pasir besi optimum sebanyak 10% dan curing air panas optimum pada suhu 40o C selama 4 jam. Curing air panas dapat mempercepat proses pematangan benda uji yang ditunjukkan dengan kuat tekan rata-rata sebesar 26,69 kg/cm2 saat benda uji berumur 6 jam. Namun, kuat tekan rata-rata di umur lainnya lebih rendah jika dibandingkan dengan benda uji tanpa curing air panas. Kuat tekan rata-rata benda uji dengan curing air panas saat berumur 1 hari sebesar 93,75 kg/cm2 (pengaruh penurunannya -22,58%), umur 3 hari sebesar 129,04 kg/cm2 (pengaruh penurunannya -39,30%), umur 7 hari sebesar 177,56 kg/cm2 (pengaruh penurunannya -41,70%) dan umur 28 hari sebesar 304,71 kg/cm2 (pengaruh penurunannya -10,47%). Selain itu, didapat pula hasil rata-rata kuat tarik belah sebesar 17,83 kg/cm2 dan penyerapan air sebesar 2,48%.