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Journal : Pondasi

Analisis Efisiensi Penggunaan Lining Precast dengan Satu Desain Sambungan (Male-Female) Dua Sisi pada Pekerjaan Rehabilitasi Saluran Sekunder D.I Sidorejo Jubayir Jubayir; Soedarsono Soedarsono; Slamet Imam Wahyudi
Pondasi Vol 23, No 2 (2018): Desember 2018
Publisher : UNISSULA Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/pondasi.v23i2.11209

Abstract

Abstract: Pekerjaan rehabilitasi saluran sekunder D.I Sidorejo menggunakan model pracetak dengan desain sambungan (male-female) empat sisi. Namun, pelaksanaan dilapangan pemasangan model ini mengalami kesulitan, membutuhkan waktu lebih lama dan kurang efisien. Tujuan studi ini adalah mengetahui Efisiensi Penggunaan Lining Precast Dengan Desain Sambungan (Male-Female) Dua Sisi Pada Pekerjaan Rehabilitasi Saluran Sekunder D.I Sidorejo. Bentuk penelitian ini adalah studi kasus, yaitu pada saluran irigasi sekunder di D.I Sidorejo Kabupaten Grobogan. Alat analisis yang digunakan adalah uji efisiensi. Hasil dari penelitian ini menunjukkan bahwa pemasangan lining precast empat sisi memiliki efisiensi 80% sedangkan lining precast dua sisi memiliki efisiensi 100% baik dari sisi waktu pemasangan maupun kapasitas pemasangan. Selain itu biaya pemasangan lining precast dua sisi lebih murah dibandingkan dengan empat sisi dengan selisih biaya pemasangan sebesar Rp 60.480.000 dengan efisiensi sebesar 80%. Keywords: D.I Sidorejo; Dua sisi; Efisiensi; Lining precast;
HIDROLOGICAL SIMULATION OF THE RIVERS’ FLOOD CONTROL IN SUBDISTRIC WONOKERTO IN PEKALONGAN REGENCY Bayu Purnama Fitra; Slamet Imam Wahyudi; Moh Faiqun Ni’am
Pondasi Vol 23, No 2 (2018): Desember 2018
Publisher : UNISSULA Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/pondasi.v23i2.11208

Abstract

Abstract: Flooding problem still become serious problem in subdistrict Wonokerto of Pekalongan regency. There are six rivers that have the potential caused flooding in setelment area. In this research, the researcher wanted to do hydrological simulation at six rivers in Wonokerto. The hydrological simulation is done by calculating the inflow in the river in the form of flood discharge hydrograph design with nakayasu method, and evaluate the capacity of river catchment to flood discharge. Based the results research on six rivers, it is known that the river capacity is not able to accommodate the flood discharge when enters the river. The River water are also known  unable to flow by gravity caused of rob dikes that isolated the river water to flow into the sea, therefore to prevent overflow in the river needs and to prevent overflow and to control the river water level a pumping in rivers.Keywords: Hydrological Simulation, River Flood Control, Storage Evaluation, Pumping
Design and selection of alternative embankments to overcome tidal flood (A case study of the construction plan of a tidal embankment at Sayung, Demak) Lulut Riyan Utomo; Henny Pratiwi Adi; slamet Imam Wahyudi
Pondasi Vol 27, No 2 (2022): Desember 2022
Publisher : UNISSULA Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/pondasi.v27i2.28071

Abstract

Tidal embankment project in Sayung is one of the construction planning projects of the government. There are three alternatives of embankment designs that may be applied in the construction project; (1) Parapet Wall and Corrugated Concrete Sheet Pile (CCSP) reinforcement, (2) Concrete Wall Embankment with mini pile reinforcement, and (3) Multipurpose Panel System Embankment (SPS). The research was needed to examine the designs to find the fittest. This study aimed to redesign the construction plan of the tidal embankment using Plaxis software. This software was to analyze and determine the safety factors of the three alternative embankment designs. It was stated to be safe because it exceeded the standard of 1.5. One of the three alternative embankments was implemented using the Analytical Hierarchy Process (AHP) method based on predetermined criteria: (1) Aspects of function and benefits, and (2) Aspects of site conditions which include cost and construction process. From the alternative selection using the expert choice program analysis method, the concrete wall embankment with mini-pile reinforcement was the main priority, with a weight value of 45.9%. Meanwhile, the second priority was the Parapet Wall and CCSP Reinforcement with a weight value of 37.2%, and the third choice was the Multipurpose Panel System Embankment (SPS) with a weight of 17%.