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All Journal Inersia : Jurnal Teknik Sipil
Anggi Nidya Sari
Universitas Bengkulu
Civil Engineering, Building, Construction & Architecture

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PERHITUNGAN HUJAN EFEKTIF DENGAN METODE SCS-CN DAN PENGARUHNYA TERHADAP HIDROGRAF SATUAN Anggi Nidya Sari; Joko Sujono; Rachmad Jayadi
Inersia: Jurnal Teknik Sipil Vol 8, No 1 (2016)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.243 KB) | DOI: 10.33369/ijts.8.1.27-38

Abstract

The change of landuse at watershed (DAS) could influence that watershed’s condition. This affects runoff condition or changed of discharge of watershed. Lack of attention toward water resource management causes low support capacity of DAS such as lack of infiltration capacity or lack of water storage capacity. The understanding about process and how much effective rainfall happens including influencing factors are very needed as model to apply watermanagement and use system of field more effective. This research was conducted in five DAS of DI Yogyakarta and DAS in Central Java area. Those five DAS were DAS Code in Pogung, Code in Kaloran, Gajahwong in Papringan, Bogowonto in Pungangan and Progo in Badran. Effective rainfall method can be analysis by SCS-CN method. Effective rainfall obtained from  these methods would be used for unit measurement of flood discharge design with unit hydrograph method.The result of research showed that The value of effective rainfall varied well from SCS-CN method. The design for flood discharge measurement with unit hydrograph method to compared with analysis frequency method. Initial abstraction is also very influential in the SCS-CN method.
A PRELEMINARY EVALUATION OF LIQUEFACTION POTENTIAL OF SANDY SOIL IN LEMPUING SUB-DISTRICT (A COASTAL AREA IN BENGKULU CITY) Lindung Zalbuin Mase; Anggi Nidya Sari
Inersia: Jurnal Teknik Sipil Vol 7, No 2 (2015)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.7.2.21-25

Abstract

In 2000 to 2009, at least two big earthquakes happened in Bengkulu. The first earthquake occurred in June 4 th, 2000 and the second one occurred in September 12, 2007. Two big earthquakes not only triggered the extensive damage of structures and infrastructures, but also triggered the attributed disaster such as liquefaction. Liquefaction occurred in Bengkulu were signed by sand boiling and lateral spreading in minimum to maximum scale in coastal area, particularly in Lempuing Sub-district. Soil condition in Lempuing Sub-District is dominated by sandy soil with shallow water table depth. Rely on the experience of earthquake and liquefaction disaster in the past, a preliminary evaluation of soil liquefaction in Lempuing Sub Districthad been conducted. The evaluation was performed to define the relationship between peak ground acceleration coefficient and relative density for variation of D of soil sample. This evaluation can be used to estimate the preliminary liquefaction potential before continue more detail analysis.
Co-Authors Joko Sujono Lindung Zalbuin Mase Rachmad Jayadi