2024-03-29T10:54:43Z
https://ejournal.undip.ac.id/index.php/index/oai
oai:ojs.ejournal.undip.ac.id:article/6010
2014-01-02T13:28:35Z
keairan:ART
SISTEM PERAMALAN BANJIR SECARA SPATIAL (STUDI KASUS PADA SUNGAI TUNTANG)
Suharyanto, Suharyanto
Pranoto, Sumbogo
Nugroho, Hari
Parmantoro, Priyo Nugroho
Flood Forecasting; Tuntang River
Flooding is a natural disaster which can not be prevented totally, Some countermeasures to alleviate the flooding’s damaging effects have been implemented with some deggree of succes and some with limited succes (fail). These countermeasures include normalizing the river courses, increasing its embankment, providing revetment, or providing with flood control structures. However, these countermeasures are not the only action to reduce flooding damage. An equally important action contributing to the success on reducing flood damaged is non-technical measures especially system information on flooding characteristics This non-technical measure requiring flood forcasting procedures (software, equipments, information exhange, procedures, and coordination). When the time, the places, and the magnitudes of the incoming floods can be predicted with better confidence then the affected regions and people can prepared to anticipate well before the flood occurrence. This will definitelyreduce the possible flood damages. This paper presents the development of flood forecasting function in the Tuntang River, i.e., from Glapan weir to Gubug, and Buyaran bridges. Additioanlly, the flood forecasting functions along the river, i.e., at every potentially vulnerable embankments are also presented. These functions have also been calibrated by the floods occuring on 2001.
KEAIRAN
2014-01-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/6010
KEAIRAN; No.1 - Tahun 8 JULI 2001; 49-67
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/6010/5150
oai:ojs.ejournal.undip.ac.id:article/5097
2013-06-18T12:14:15Z
keairan:ART
EFISIENSI PENURUNAN KEKERUHAN, ZAT ORGANIK DAN AMONIAK DENGAN TEKNOLOGI BIOFILTRASI DAN ULTRAFILTRASI DALAM PENGOLAHAN AIR MINUM (STUDI KASUS: PENGOLAHAN AIR BAKU AIR MINUM PDAM PULO GADUNG)
Hardyanti, Nurandani
utomo, Sudarno
Amali, Fikroh
ammonia; THMs; biofilter; bioreactor; honey tube; ultrafiltration; hollow fiber
Ammonia concentration in raw drinking water at Jakarta varied until 2,0 mg/l, that value has reached out the standard of ammonia (1,5mg/l) according to KepMenkes No 907/MENKES/SK/VII/2002. Ammonia in raw water could react with chlor to be choramine, which have lower disinfecting power. It could make chlor consumption being bigger, beside that presence of THMs and chlorophenol as by product of disinfecting is bigger. This research had done in PDAM Pulo Gadung from December 2004/ January 2005. The purpose of this research was to know effectively of turbidity, organic matter and ammonia removal in raw drinking water by submerged biofilter using honeycomb tube plastic media and ultrafiltration with hollow fiber membrane processes. The feed water entered into the reactor continuously on aerobic and nonaerobic condition with the varied hydraulic residence time from 5-2 hour then continued with ultrafiltration process. Efficiency of ammonia decreased in nonaerobic condition in bioreactor average between from 41,45 - 70,30% and efficiency in ultrafiltration 34,48 - 38,71%. While in aerobic condition in bioreactor average between 44,04-75,00% and in ultrafiltration 35,00 - 38,89%.
KEAIRAN
2006-07-29
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/5097
KEAIRAN; No 1 TAHUN 13 JULI 2006; 1-7
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/5097/4623
oai:ojs.ejournal.undip.ac.id:article/2716
2012-03-28T14:52:46Z
keairan:ART
Pengaruh Kualitas Air terhadap Kualitas Tanah pada Tata Saluran Irigasi Pasang Surut di Kab. Barito Kuala, Kalimantan Selatan
Bhakty, Tania Edna
Water quality, tidal irrigation, Barito river
The food production in South Kalimantan Province is mostly gained from tidal irrigation along the downstream of Barito river. Tabunganen unit an area of 5600 ha, is one of the area under Tabunganen subdistrict. Previously the rice production in Tabunganen unit was considered sufficient, with the production rate of 2,5-3,0 ton/ha. Currently some areas near the tidal ponds have very low productivity, around 1-1,5 ton/ha. Some farmers presume that the decline in productivity is caused by soil acidity. This research is aimed to investigate the influence of water quality on soil quality in Tabunganen unit. Some measurements are taken in secondary and tertiary channels (upstream, middle, downstream), the value of Fe (mg/l), DHL (mmhos) and pH. The flow and water quality measurements are taken every 3 hours within 26 hours. Water level is measured for 15 days. The result of this research shows that pH values in both secondary and tertiary (upstream, middle, downstream) are pH>6. During rise and fall tide, the pH values of the right and left ponds are still same. This condition indicated the disfunction of the ponds retaining soil acidity, especially some areas near the tidal ponds. Therefore, the field has high potency for pirit oxidation. In tertiary channel, the DHL values is DHL>3290 mmhos, pH value is 6<pH<7 and Fe value is 0,01-1 mg/l.Keywords:Water quality, tidal irrigation, Barito river Permalink: http://ejournal.undip.ac.id/index.php/keairan/article/view/2716[How to cite: Bhakty, T.E. (2005). Pengaruh Kualitas Air terhadap Kualitas Tanah pada Tata Saluran Irigasi Pasang Surut di Kab. Barito Kuala, Kalimantan Selatan, Jurnal Keairan, 12 (2): 1-14]
KEAIRAN
2012-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/2716
KEAIRAN; No. 2 - Tahun 12 Desember 2005; 1-14
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/2716/2406
oai:ojs.ejournal.undip.ac.id:article/12289
2016-10-13T10:16:53Z
keairan:ART
PENANGGULANGAN ABRASI DI PANTAI LAUT JAWA : TINJAUAN KASUS
Hargono, Slamet
Abrasi Pantai; Bangunan Pantai; Gelombang Laut
Kerusakan pantai yang diakibatkan oleh pukulan gelombang laut seringkali kita dengan dan atau ikuti di surat kabar/media cetak maupun dalam berita radio/televisi. Pada kesempatan ini yang disajikan adalah pada pantai utara pulau Jawa. Usaha untuk mengatasi kerusakan ataupun penanggulangannya sudah diupayakan, akan tetapi tidak selalu berhasil dengan baik. Ketidakberhasilan ini disebabkan beberapa faktor antara lain data/pemantauan gelombang yang kurang memadai, kurang data sekunder, batasan biaya yang tersedia dan masih banyak lagi. Pada penulisan ini disajikan data-data apa saja yang diperlukan untuk keperluan penanggulangan abrasi, analisa dari yang ada dan keluaran yang diharapkan dari hasil analisa. Dari beberapa kasus yang penulis amati, dapat disimpulkanbahwa dengan konstruksi kawat bronjong kurang dapat dipertanggung jawabkan, karena akan mengalami kegagalan dalam waktu yang relatif singkat. Kegagalan ini dikarenakan kawat bronjong sebagai pengikat batu kali mengalami korosi dan dalam waktu yang relatif singkat akan putus. Konstruksi yang penulis anggap cocok adalah dari kostruksi beton dengan tulangan praktis, pasangan batu kali, konstruksi dari buis beton yang didalamnya diisi dengan beton “cyclope” berfungsi sekaligus sebagai pengikat antara dua buis beton. Disaming itu faktor tanah juga punya peran yang cukup besar . artinya bahwa pemilihan konstruksi harus disesuaikan terhadap kondisi tanah yang ada.
KEAIRAN
2016-10-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/12289
KEAIRAN; Vol 2, No 2 (1998): Desember 1998; 1-9
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/12289/9308
Copyright (c) 2016 KEAIRAN
oai:ojs.ejournal.undip.ac.id:article/4954
2013-05-20T15:59:09Z
keairan:ART
PENANGANAN ABRASI PANTAI PASIR MAYANG
Salamun, Salamun
Seawall; revetment
Seawall or Revetment have been devised to protect coastal or shoreline form erosion by Waves. The seawall or revetment system must be resist direct wave attack, reduces hydraulic forces on underlying material and constribute to dissipation wave energy. Identifies the main types of seawall or revetment systems, decribes the main prediction methods used to design seawall or revetment armoring and for the first time offer a simple methode to compare design thickness of deferent system. On the field design of seawall or revetment be used at Tourism Area, so type of seawall or revetment and structure be combined architeture. This Paper is case study Pasir Mayang
KEAIRAN
2006-07-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/4954
KEAIRAN; No 1 TAHUN 13 JULI 2006; 36-50
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/4954/4493
oai:ojs.ejournal.undip.ac.id:article/2733
2012-03-28T14:45:14Z
keairan:ART
Optimasi Desain Bangunan Pelengkap Bendungan dengan Metoda Simpson Luas Penampang (Simpson’s Rule)
Soetjiono, Carlina
Sunarto, Sunarto
optimum design, Simpson’s rule, head-works, dams, massive structure
Design of headworks should be considered in the mitigation of hazards in Indonesia. Several aspects considered in design consist of design flood, influeczes to the structures, and the risk of earthquake. The external loads have a negative impact to the structures so the dimension of the structure should be bigger. In connection of the overdesign of structure, the cross section design should be optimum. The Simpson’s rule is used to compute accurately the cross section area of the structure. This method is carried out by using the matematical of the existing condition and the reductions of the volume and the weight of the structures caused by the holes in the structures. Experimentally, the studies have been carried out in the Kalibumi weir and the tower of Cikukang dam. These studies present that the results of the stability analysis of the non orderly and non massive structures are quite satisfy. The out-come of the analysis is obtain the safety dams concerning with the program of safety dams in Indonesia. Keywords: optimum design, Simpson’s rule, head-works, dams, massive structurePermalink: http://ejournal.undip.ac.id/index.php/keairan/article/view/2733[How to cite: Soetjiono, C. dan Sunarto (2005). Optimasi Desain Bangunan Pelengkap Bendungan dengan Metoda Simpson Luas Penampang (Simpson’s Rule), Jurnal Keairan, 12 (2): 30-42]
KEAIRAN
2012-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/2733
KEAIRAN; No. 2 - Tahun 12 Desember 2005; 30-42
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/2733/2422
oai:ojs.ejournal.undip.ac.id:article/12292
2016-10-13T10:00:34Z
keairan:ART
PERENCANAAN JARINGAN IRIGASI PARTISIPATIF, TINJAUAN RENCANA OPERASI, D.I.JETIS, KABUPATEN SRAGEN
Hargono, Slamet
jaringan irigasi; desain partisipatif; rencana operasi
Perencanaan jaringan irigasi pada dua tahun terakhir ini mengalami perubahan, yaitu dengan melibatkan unsur Perkumpulan Petani Pemakai Air (P3A) pada proses perencanaannya. Hal ini merupakan tindak lanjut dari inpres No. 3 tahun 1999 tentang Reformasi Kebijakan Pengelolaan Irigasi. Pada prinsipnya suatu jaringan irigasi teknis yang sudah ada dilakukan rehabilitasi/up grading, dengan tujuan untuk meningkatkan fungsi jaringan yang ada agar tercapai efisiensi pemakaian air. Setelah proses desain dan masa konstruksi dapat dilakukan pada suatu wilayah daerah/sistem irigasi tertentu, kemudian dilakukan Penyerahan Pengelolaan Irigasi (PPI). Dengan telah dilakukannya penyerahan pengelolaan irigasiini nantinya, maka berarti pengelolaan jaringan irigasi akan diserahkan secara penuh kepada petani (P3A dan Gabungan P3A). Dari pemikiran ini, maka suatu perencanaan/desain irigasi partisipatif akan terkait dua aspek sekaligus yaitu aspek non teknis dengan melibatkan langsung P3A/Gabungan P3A mulai dari awal proses perencanaan dan aspek teknis yang menggunakan buku pegangan yang ada dengan melibatkan Dinas Pengairan setempat. Pembahasan pada rencana operasi dimulai dari tinjauan tentang persediaan dan kebutuhan air, rencana tanam dan kalender tanam; rencana operasi yang meliputi sistem pembagian air baik pada saat ini maupun yang diusulkan. Pada tahap berikutnya, P3A/Gabungan P3A harus dapat menangani permasalahan teknis baik pada tahap perencanaan, pelaksanaan dan operasional melalui Kerja Sama Operasional (KSO) dan Kerja Sama pengelolaan (KSP). Dengan metode Pemahaman Partisipasi Kondisi Pedesaan (PPKP) petani/P3A diberdayakan untuk dapat berperan aktif dalam melaksanakan Operasi dan Pemeliharaan jaringan irigasi.
KEAIRAN
2016-10-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/12292
KEAIRAN; Nomor 1, Tahun 7, JULI 2000; 44-52
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/12292/9311
Copyright (c) 2016 KEAIRAN
oai:ojs.ejournal.undip.ac.id:article/4957
2013-05-21T09:33:02Z
keairan:ART
INSTRUSI AIR LAUT SUNGAI GANGSA
Salamun, Salamun
Gangsa River; Estuary Phenomenon
Estuary Phenomenon was construced by Tidal Range, Discharge and Sea Wave. Instrution was an impact of Fresh water and Sea Water or Salinity. Length of Instrution in Gangsa river can be forecasted by a model numerical which Saint Venant equation especially on continuity and momentum equation which was shown water surface and discharge. One of stop instrution on river is to build. Keywords : Gangsa River, Estuary Phenomenon ABSTRAK Fenomena Estuary terbentuk dari Pasang, Debit dan Gelombang Laut. Instruary adalah dampakdari menysupnya air laut/salinitas kerah air tawar/sungai. Panjang instrusi Sungai Gangsa dapat diramalkam dengan Numerik dengan persamaan Saint Venant khususnya pada Continuitas dan momentum yang ditunjukkan oleh elevasi muka air dan debit. Peramalan ini adalah salah satu cara penentuan bangaunan penanggulangan instrusi air laut. Kata kunci : Debit Sungai, Pasang Surut dan Salinitas.
KEAIRAN
2008-07-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/4957
KEAIRAN; Volume 14, Nomor 1, JULI 2008; 21-34
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/4957/4495
oai:ojs.ejournal.undip.ac.id:article/2736
2012-03-28T14:51:15Z
keairan:ART
Penggunaan Silt Screen untuk Proteksi Alur Pelayaran terhadap Siltasi
Alfalah, Alfalah
Silt screen, fluid mud sedimentation
Indonesian beaches commonly took mud as basic material which are washed away by river flow from mainland during flood period. Navigational channels built in muddy beaches surely suffer from siltation resulted from wave and current transported fluid mud.Siltation in navigational channels mostly formed by fluid mud sedimentation and with a little contibution from accumulated suspended sediment. Common strives taken after are to build fix structure such as breakwater and submerge dike.The research will examine movable structure (silt screen) to decrease siltation rate in navigational channels.In the process, the research will use 2 dimentional mathematical model as well as physical one. The expected results would be optimal silt screen form and the value of siltation reduction rate in the navigational channels comparing with those without silt screen.Keywords: Silt screen, fluid mud sedimentationPermalink: http://ejournal.undip.ac.id/index.php/keairan/article/view/2736[How to cite: Alfalah (2005). Penggunaan Silt Screen untuk Proteksi Alur Pelayaran terhadap Siltasi, Jurnal Keairan, 12 (2): 43-53]
KEAIRAN
2012-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/2736
KEAIRAN; No. 2 - Tahun 12 Desember 2005; 43-53
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/2736/2424
oai:ojs.ejournal.undip.ac.id:article/12819
2016-12-19T15:58:02Z
keairan:ART
PENGARUH SUDUT DATANG GELOMBANG TERHADAP KERUSAKAN UNIT LAPIS LINDUNG PEMECAH GELOMBANG
Sriyana, Sriyana
angle of wave attack; armour layer unit
Angle of wave direction is highly influence on the amount of damage in the armour layer unit breakwater. This research is aimed at knowing in the influence of angle of wave direction toward damage in armour layer unit. There kind of angle of wave direction is used in this research. There were 0o, 15o, and 30o with employing tetrapod, cubes, and rubble mound as the armour layer. This study is carried out by means of irregular breaker waves on phisical modeling with non-overtopping condition. The result of measurements indicate that increasingly angle of wave direction 0o have largest effect to determination of the amount of damage in the armour layer unit of breakwater than 15o, and 30o.
KEAIRAN
2006-12-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/12819
KEAIRAN; Nomor 2, Tahun 13, DESEMBER 2006; 136-144
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/12819/9601
Copyright (c) 2016 KEAIRAN
oai:ojs.ejournal.undip.ac.id:article/6008
2014-01-02T13:03:10Z
keairan:ART
PERMODELAN SISTEM INFORMASI GEOGRAFIS (SIG) DALAM ANALISIS DISTRIBUSI RUANG DEBIT BANJIR (SPATIAL DISTRIBUTION OF FLOOD) SUNGAI BERINGIN
Atmojo, Pranoto Samto
Parmantoro, Priyo Nugroho
Wulandari, Dyah Ari
Suharyanto, Suharyanto
The Bringin River's; Flood
The significant and un-controlled land use change in Bringin River has affected the downstream area i.e.,increased flooding intensity and frequency. This condition is becoming worse with the increase number developer opening the area at the upstream area. Therefore, the impact of the downstream flooding should also be the responsibility of those developers. This paper focused on the evalution of spatial distribution of the river discharge over the Bringin River’s catchment area, which therefore able to give some indication on the responsibility proportion on floodings. The paper demonstrate the use of GIS to model the spatial distribution of floods over the catchment area. This paper show that there’s 6.39 % increase in 2002 floodings. In general, the total proportion of the overall developer in less than 15 % compared to the “contribution of traditional housing of about more than 25 %.
KEAIRAN
2014-01-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/6008
KEAIRAN; No.2 - Tahun 8 DESEMBER 2001; 53-71
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/6008/5148
oai:ojs.ejournal.undip.ac.id:article/2744
2012-03-28T14:55:33Z
keairan:ART
Mathematical Approach of Riverbed Propagation
Wahono, Endro P.
morfologi sungai, dasar sungai, pendekatan matemtis, konveksi-difusi
Berbagai macam pengambilan keputusan ideal yang berkaitan dengan rekayasa persungaian mensyaratkan sebuah studi menyeluruh pada perilaku sungai (respon sungai) baik akibat perubahan alam maupun akibat intervensi manusia. Dalam mempelajari respon sungai, terdapat banyak aspek yang harus diperhatikan, terutama yang berhubungan dengan morfologi sungai. Propagasi dasar sungai akibat perubahan lokal adalah salah satu aspek penting yang membutuhkan perhatian khusus karena dampaknya terhadap perubahan morfologi sungai. Sayangnya aspek ini belum dikaji dengan jelas karena fenomenanya yang kompleks. Tujuan utama tulisan ini adalah untuk mempelajari sekaligus mendapatkan fomulasi matematis bagaimana dasar sungai berperilaku akibat perubahan debit atau kekasaran bantaranya. Sebuah pendekatan matematis satu dimensi telah dirumuskan pada tulisan ini untuk menjelaskan secara sederhana proses konveksi - difusi yang terjadi pada propagaasi dasar sungai. Prinsip conveksi - difusi sebuah besaran dijadikan dasar pengembangan formula matematis dalam tulisan ini dengan mengadaptasikan batasan-batasanya dalam batasan-batasan morfologi sungai. Hasil dari penelitian ini menunjukkan bahwa pendekatan perilaku dasar sungai dengan metode matematis sederhana hanya dapat digunakan sebagai perkiraan umum. Hal tersebut dikarenakan kedua variabel: wave celerity (c3) dan diffusion factor (D) telah diasumsikan sebagai variabel yang linear. Sedangkan pada kenyataanya, kedua variabel tersebut berperilaku tidak linear. Dengan demikian pemahaman atas kemungkinan pemberlakuan formula yang dihasilkan serta batasan-batasan berlakunya formula tersebut menjadi hal yang sangat penting diperhatikan. Pendekatan numeris sangat direkomendasikan pada penelitian lanjutan untuk mempelajari lebih lanjut perilaku propagasi dasar sungai. Kata kunci: morfologi sungai, dasar sungai, pendekatan matemtis, konveksi-difusiPermalink: http://ejournal.undip.ac.id/index.php/keairan/article/view/2744[How to cite: Wahono, E.P. (2005). Mathematical Approach of Riverbed Propagation, Jurnal Keairan, 12 (2): 54-63]
KEAIRAN
2012-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/2744
KEAIRAN; No. 2 - Tahun 12 Desember 2005; 54-63
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/2744/2430
oai:ojs.ejournal.undip.ac.id:article/12820
2016-12-20T08:35:27Z
keairan:ART
KAJIAN POLA PERUBAHAN GARIS PANTAI DAN DSTRIBUSI SEDIMEN (STUDI KASUS PERAIRAN PANTAI KENDAL JAWA TENGAH AKIBAT PEMBANGUNAN PELABUHAN)
Sriyana, Sriyana
Change of coastline; movement
As an impact of development of Kendal Port, the coast around the port will be disruption. The accretion and erotion will be happened in certain area in coast. Remind in the development of port should have environmental vision so it is felt important to has a study to know the impact in coastline changing. This study is to know how far the changing of Kendal coastline as effect of development Kendal port and pattern of sediment movement. Method was used to know how far the changing of coastline and movement pattern of sediment by using GENESIS SMS (Surface Water Modeling System) version 7.0. The result of running simulation program yielded that change of coastline will be equal to 15 m until 80 m of per year. The pattern of sediment movement in port basin is 0,25 – 0,30 gr/lt and in outer of port basin is 0,40 – 0,50 gr/lt. This trend followed the angle of incoming dominant wave and the current velocity.
KEAIRAN
2016-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/12820
KEAIRAN; Nomor 1, Tahun 12, JULI 2005; 66-80
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/12820/9602
Copyright (c) 2016 KEAIRAN
oai:ojs.ejournal.undip.ac.id:article/6009
2014-01-02T13:13:35Z
keairan:ART
DESIGN OF ROCK STRUCTURE BREAKWATER WITH LARGE OVERTOPPING ALLOWED/LOW CREST STRUCTURE (Case Study on Madras Port, India)
Parmantoro, Priyo Nugroho
Sabdono, Parang
Rock Breakwater; Low Creste Strukture
Tugas utama dari proyek ini adalah untuk mendesain “kepala” dari breakwater (pe- mecah gelombang) sebelah utara bersama-sama dengan bagian “belalai” breakwater. Tujuan dari perencanaan ini adalah untuk mendapatkan breakwater yang dapat ber-tahan pada kondisi gelombang harian dan ekstrim (badai). Sedangkan tujuan lainnya adalah untuk menyediakan alur masuk pelayaran yang tenang ke kolam pelabuhan. Tetapi untuk kondisi tertentu, kapal-kapal tidak dapat berlabuh di pelabuhan karena kriteria dari akhir perencanaan adalah struktur yang dapat/menerima limpasan (over-topping) yang cukup besar. Kondisi ini didefinisikan sebagai maksimum gelombang transmisi adalah kurang dari 1 m dalam periode ulang kejadian 50 tahunan.
KEAIRAN
2014-01-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/6009
KEAIRAN; No.1 - Tahun 10 JULI 2003; 41-57
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/6009/5149
oai:ojs.ejournal.undip.ac.id:article/2746
2012-03-28T14:57:48Z
keairan:ART
Pengelolaan Air Permukaan di Wonoharjo Kabupaten Karanganyar
Supadi, Supadi
small dam, infitration hole-water, hard soil, water table, big gravel-soil
The purpose of the research is to discuss and choose of the structures for managing of run-of water resources.This research is conducted by observing the soil layers of 130x300 m2 wide and 4 m depth at 17th stations in Kabupaten Karang Anyar. Water table, hard soil, and gravel-soil is parameter for choosing the structure that is allowable. Hard-soil or water tabel on 2.0 - 2.5 meter at Colomadu, Kebakramat, Jaten, Tasik Madu,and Karang Anyar. Hard-soil or water tabel on 2.5 – 3.0 meter at Matesih, Karang Pandan, Mojogedang, Jumapolo, and Ngargoyoso.Hard-soil on 3.0 – 4.0 at Kerjo, Jumantono, Jatipuro, and Jatiyoso. Big gravel-soil at Tawang Mangu, and Jenawi.The result showed that small dam or horizontal infiltration hole-water is allowable at Jenawi, Tawang Mangu, Karang Anyar, Jaten, Tasik Madu. Vertical infiltration hole-water is allowable at anothers. Keywords: small dam, infitration hole-water, hard soil, water table, big gravel-soilPermalink: http://ejournal.undip.ac.id/index.php/keairan/article/view/2746[How to cite: Supadi (2005). Pengelolaan Air Permukaan di Wonoharjo Kabupaten Karanganyar, Jurnal Keairan, 12 (2): 64-71]
KEAIRAN
2012-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ejournal.undip.ac.id/index.php/keairan/article/view/2746
KEAIRAN; No. 2 - Tahun 12 Desember 2005; 64-71
eng
https://ejournal.undip.ac.id/index.php/keairan/article/view/2746/2432