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PERENCANAAN EMBUNG SEMAR KABUPATEN REMBANG Muchammad Chusni Irfany; Satriyo Pandu Wicaksono; Suripin Suripin; Sri Eko Wahyuni
Jurnal Karya Teknik Sipil Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Semar small dam which is located in Mlatirejo village of Rembang Regency is built on Serojeh River with 10.62 km2 of watershed.. The function of Semar small dam is to fill the needs of raw water and irrigation water requirement. Semar small dam was is designed with 240.449 m3 of water capacity in +67 elevations. The effective volume of Semar small dam is 137.385 m3 which provides the needs of raw water and irrigation of them are 0.002 m3/sec and 0.08 m3/sec. This spillway is designed to reduce the flood of reissue 50 years period of 121.091 m3/sec into 43.47m3/sec. The small dam was a homogeneous soil with its 15 meter in height and 158 meter in length. This project implementation is scheduled for 28 weeks with a budget plan of Rp 8.469.864.600,00.

ANALISIS PERBANDINGAN ANTARA BIAYA OPERASIONAL KENDARAAN (BOK) DI JALAN ARTERI PRIMER DENGAN RENCANA JALAN TOL RUAS : UNGARAN - SALATIGA Rendy Augusta Wirayoga; Danang Setiyo Cipto Saputro; Djoko Purwanto; Wahyudi Kushardjoko
Jurnal Karya Teknik Sipil Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Semarang is one of the big cities, where many centers of economic, political, socio-cultural and educational center. The existence attractive to residents outside of Semarang to travel to Semarang. Most Salatiga’s residents doing trip - roundtrip to the Semarang city. However, the operation conditions of public transportation that led to and leaving Semarang still not up and there are a few obstacles along the way such as markets, factories and other activities that disrupt the trip. This transport problems will cause a variety of negative effects, such as lost time due to the long trip and the increase in Vehicle Operating Costs (VOC) to existing roads, so that the government develop a national road network in particular in areas of Java such as Trans Java Toll road construction Semarang - Solo segment. The purpose of this evaluation is to analyze the velocity space (space mean speed) and the Vehicle Operating Costs comparison between existing roads and toll roads segment Ungaran - Salatiga. Vehicle Operating Costs (VOC) using the Pacific Consultants International (PCI) formula. Data that obtained from the survey results for the velocity space (space mean speed) toward Ungaran - Salatiga for each vehicle and departure times both morning and afternoon, for the morning bus speeds faster 1.55 km / h of speed during the day is 31.14 km / h; 2 axle trucks during the day faster 4.67 km / h of speed in the morning is 30.76 km / h; as daytime tuk 3 faster 1.37 km / h from speed in the morning is 27.05 km / h; while the direction of Salatiga - Ungaran for the bus in the morning faster 1.21 km / h of speed during the day is 36.36 km / h; 2 axle trucks during the day more fast 3.77 km / h of speed in the morning is 34.29 km / hr; 3 axle truck in the morning faster 3.09 km / h of speed during the day is 26.81 km / h. The average speed for the Toll Road is taken based on a minimum speed of 60 km / h. The results of the comparison vehicle operating cost (VOC), it costs when crossing the Toll road is more economical when compared to the existing road. Where is the economic value of the vehicle in the morning for the bus is more efficient to IDR 37.132,38 (27.19%); 2 axle trucks more efficient IDR 32,802.99 (30.17%); and 3 axle trucks more efficient IDR 22,842.59 (13.58%). While in the afternoon, when crossing the Toll road for the bus will be more efficient IDR 39,564.97 (28.47%); for 2 axle trucks more efficient IDR 26,220.25 (25.67%); while for 3 axle trucks would be more efficient IDR 23,083.17 (13.70%).

PENGGUNAAN BEKISTING GALVALUM BERGELOMBANG SEBAGAI TULANGAN EKSTERNAL PADA BALOK BETON BERTULANG Ratna Chandra Ardhisa; Rifqy Mamduh Maladzi; Parang Sabdono; Han Ay Lie
Jurnal Karya Teknik Sipil Volume 6, Nomor 4, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Beton bertulang merupakan bahan material yang sering digunakan di dunia konstruksi. Material penyusun beton terdiri dari semen, agregat halus, agregat kasar dan air. Beton memiliki karakteristik kuat terhadap tekan tapi lemah terhadap tarik. Penambahan baja tulangan pada beton bertujuan untuk memberikan kuat tarik yang tinggi. Pembuatan balok beton bertulang membutuhkan perancah kayu dengan jumlah yang banyak. Penggunaan platform galvalum bergelombang sebagai bekisting balok beton bertulang menjadi salah satu upaya untuk mengurangi jumlah perancah. Penelitian Penggunaan Bekisting Galvalum Bergelombang Sebagai Tulangan Eksternal berupa studi eksperimental dan analisis dimana platform galvalum tidak hanya digunakan sebagai bekisting balok tapi juga sebagai tulangan eksternal tarik pada beton bertulang. Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan galvalum bergelombang dalam peningkatan beban ultimate yang dapat dipikul oleh balok dan keunggulan penggunaan galvalum bergelombang berdasarkan aspek biaya. Balok normal adalah balok yang dibuat menggunakan bekisting kayu yang berfungsi untuk mengontrol pengaruh platform galvalum sebagai tulangan eksternal. Benda uji berupa dua buah balok normal dengan dimensi 200 x 284 x 2440 mm dan dua buah balok galvalum dengan dimensi 200 x 300 x 2440 mm. Platform galvalum bergelombang memiliki dimensi 280 x 40 mm dengan dimensi gelombang 40 x 40 mm dan tebal platform 1 mm. Pengujian lentur balok menggunakan metode pembebanan dua titik. Metode ini digunakan untuk mendapatkan keruntuhan akibat lentur murni. Hasil pengujian didapatkan balok galvalum mengalami peningkatan beban ultimate rerata sebesar 140% dan penghematan biaya sebesar Rp 137.520,00/m3 dibandingkan dengan balok normal.

PERENCANAAN REAKTIVASI JALAN REL KERETA API KORIDOR MAGELANG – AMBARAWA Rizqi Nugroho; Giovanny Natasha F. P.; Moga Narayudha; Bambang Pudjianto
Jurnal Karya Teknik Sipil Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Highway Traffic on Semarang – Magelang track was having a significant increased of traffic flow, the degree saturation of highways and travel time, and decreased of vehicle speed. An alternative is required to overcome conditions. In accordance with the Railways Master Plan of Central Java Province, for Semarang – Magelang track, the railway corridor Magelang – Ambarawa is one of the reactivation form of the non active railway. Feasibility study of railway reactivation of Semarang – Magelang track in 2013, potential train passengers by 2038 pnp/day, the potential for freight transport by 7.7 tons/day and supported by the existing of rail way which can be reactivated. Based on topography with the avarage flatness is 20 o/oo, there are 3 alternatives for railway track that was developed with the utilization of existing track along 21.9 km and selected alternative track along 13,1 km. From the result of potential analysis of the passanger and existing condition are using grade 4th for railway grade plans with overall planning is based on the previsons of PM No. 60 in 2012, KM. No. 52 in 2000, and PD PJKA No. 10 in 1986.

PERENCANAAN EMBUNG JEMAWAN KABUPATEN KLATEN JAWA TENGAH Fero Adi Putra; Ika Noviana Prasetyo; Sriyana Sriyana; Al Falah
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Irrigation water demand and raw water in Klaten regency is increasing in line with population growth. Raw water needs in Klaten regency, District Jatinom, especially Jemawan village have been obtained from well water and for irrigation use pattern of rainfed. For the Government in this case the Department of Water Resources Management (PSDA) seeks to develop new sources of raw water by building Jemawan Small Dam. As the rainy season water reservoir, water reservoir can also be efficiently used in the dry season. Aside from being a source of raw water for daily use and meets the needs of water for irrigation, small dam also be an alternative flood mitigation in downstream areas of the river. Based on the mainstay discharge analysis by the method of F.J Mock obtained the discharge mainstay 20% dry minimum of 19,3 liters/sec. For the body design of the small dam used the flood discharge hydrological data HSS Gamma I method with flood discharge plan 100 years return period amounted 105,550 m3/sec. Jemawan Small Dam reservoir volume is 170.783,58 m3. Small dam design life is 20 years, can meet the needs irrigation with an area of 200 Ha and raw water needs for 3.513 people. The planned small dam 9,60 m high, with a base elevation ponds +221,00 m, +230,60 m dam crest elevation, surveillance 1,5 m high, 5 m wide dam crest, upstream slope of 1:3, 1:2,25 downstream slope. In planning this Jemawan Small Dam used Ogee threshold type spillway width 30 m with a height of 1,5 m and a spillway crest elevation of +228,00 m, using an eject pond flat type III with a length of 10 m. This project implementation is scheduled for 48 weeks with a budget plan of Rp.12.603.159.500,00.

ANALISIS STABILITAS LERENG BOJA – DARUPONO STA. 10+720 JAWA TENGAH DAN USULAN PENANGANANNYA Indra Adrianto; Indah Duanita Pusparini; Sri Prabandiyani; Bambang Pardoyo
Jurnal Karya Teknik Sipil Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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The landslide occurred on road Boja – Darupono Sta. 10+720 created a long traffic jam and holding up economic development between Kendal and Semarang. By analyzing the slope stability by using Fellenius method, it is shown that the SF or safety factor of the slope is 1,19 for the radius of the circle ( R ) = 28,67 and 1,63 for R = 27,09. While SF on a Plaxis V.8.2 program is 1,19, so it can be concluded that the slope in critical condition because of the SF on Plaxis V.8.2 program smaller than that of 1,5 safe although the safety factor on Fellenius value is greater than the value of safe SF. The first alternative of slope reinforcement is a Bored pile, the second alternative is Geotextille with a Counter weight. Based on finite element method calculation using Plaxis V.8.2 program, reinforcement with Bored pile produce SF = 1,75 and Geotextille with a Counter weight SF = 1,5. This form these two alternatives, Bored pile reinforcement has the greatest, so can be considered as the best alternative solution.

ANALISA GEOTEKNIK DAN PENANGGULANGAN KELONGSORAN TANGGUL SUNGAI BANJIR KANAL BARAT SEMARANG Muhammad Afrol Horison; Syarifudin Adi Saputro; Sri Prabandiyani Retno Wardani; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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This undergraduate thesis is about the landslide Geotechnical Analysis and Landslide Handling on theSlope of West Flood Canal – Semarang. Labile land condition result the slope happened slide, one of the slope is gristle slide there are at WF 80 and WF 91. This undergraduate thesis involves conditions which the motions of the soil on the slope because of slope unstability, manual calculation slope stability with Fellinius methods. Landslide simulation was carried out by making a model of slope stratigrafi in accordance with field conditions. Determination of soil types was conducted based on SPT values. Geotechnical analysis using Plaxis finite element software. Plastic and elastic model of Mohr-Coulomb failure criterion was chosen as a model soil. Analysis showed that the most optimum treatment is install retaining wall and group of bored pile with a diameter 0,6 meter which is modeled with elastic-plastic beam elements. By using retaining wall + bored pile reinforcement, minimum slope safety factor beincreased and reached 1,363 for WF-80 and safety factor beincreased and reached 1,541 for WF-91.

PERENCANAAN PENGENDALIAN BANJIR SUNGAI TUNTANG DI DESA TRIMULYO KABUPATEN DEMAK Iksan Maulana; Sutra Ayu Lukito; Suharyanto Suharyanto; Sumbogo Pranoto
Jurnal Karya Teknik Sipil Volume 6, Nomor 4, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Kabupaten Demak yang merupakan salah satu Kabupaten di Provinsi Jawa Tengah. Desa Trimulyo memiliki luas 4,26 km² dan jumlah penduduk sebanyak 4116 jiwa pada Desember tahun 2014. Desa Trimulyo merupakan salah satu Desa yang terletak di Kecamatan Guntur, Desa Trimulyo terbagi atas 7 dusun yaitu Dusun Kandang, Dusun Walang, Dusun Gobang, Dusun Solowire, Dusun Solondoko, dan Dusun Sindon. Desa Trimulyo merupakan salah satu daerah yang rawan terjadi banjir. Masalah utama yang dihadapi Sungai Tuntang yaitu masalah banjir dan kerusakan tanggul. Sungai Tuntang merupakan sungai yang secara periodik menyebabkan banjir di Desa Trimulyo Kecamatan Guntur, Kabupaten Demak. Seringkali pada musim penghujan tanggul pada Sungai Tuntang di Desa Trimulyo tidak mampu menahan debit, terjadi pendangkalan alur sungai, dan settlement tanggul sehingga tanggul tersebut jebol dan mengakibatkan banjir.Perbaikan penampang pada daerah aliran Sungai Tuntang dapat menjadi alternatif penanganan masalah yang tepat untuk wilayah tersebut, muka air sungai yang tinggi dan mengalami penurunan tanah. Perbaikan penampang aliran sungai Tuntang ini meliputi perencanaan perbaikan tanggul, normalisasi sungai, dan perkuatan lereng sungai. Perhitungan debit banjir rencana 25 tahun menggunakan metode Haspers. Debit banjir rencana untuk perencanaan ini adalah 828 m3/detik. Perencanaan perbaikan sungai menggunakan model HEC-RAS dengan debit rencana hasil dari perhitungan menggunakan metode Harpers. Penampang direncanakan berbentuk trapesium dengan perkuatan lereng pasangan batu kali direncanakan sedalam 5,5 m sepanjang 3,2 kilometer. Tanggul sungai direncanakan untuk menanggulangi air sungai yang melimpas akibat dari sungai yang tidak mampu menampung debit banjir. Proyek ini menelan biaya sebesar Rp115.062.587.700,00

KOMPARASI PARKIR ON STREET TERHADAP KINERJA JALAN DENGAN MEDIAN DAN JALAN TANPA MEDIAN MENGGUNAKAN METODE SIMULASI (STUDI KASUS JALAN KH. AGUS SALIM DAN JALAN PANDANARAN) Denny Kusumanegara; Eko Bagus Cahyono; Ismiyati Ismiyati; Kami Hari Basuki
Jurnal Karya Teknik Sipil Volume 4, Nomor 1, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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On street parking is parking which take place along of street. This parking gives a negative impact for traffic flow, because it can reduce width of road. The purpose of this study was to compare the on-street parking on one lane in Jalan KH. Agus Salim with median and Jalan Pandanaran without median toward the performance of the road, as well as provide an alternative parking management. Analysis of the data used is simulation method of flow theory based on Greenshields, Greenberg, and Underwood models. The largest value of the correlation coefficient (R) among the three models is taken to determine the model used. Based on the results of the simulation can be compared to the smooth flow of traffic in the presence of on-street parking on the road with median and the road without median.The analysis showed that the model of Greenberg is a model that best fits the characteristics of KH. Agus Salim and Pandanaran Street. The results of simulation analysis parking angle configuration at Jalan KH. Agus Salim on Thursday showed the DS of 0,231, 0,472, 0,223 respectively for the parking configuration 0°, 90°, without parking, while Saturday at 0,303, 0,619, 0,292 for the same parking configuration. These results indicate that the parking angle 0°, 90°, and no parking on the street with median provide good performance when viewed from the value of the DS which took on Thursday and Saturday. Value of DS at Pandanaran street as a result of on-street parking on Thursday and Saturday respectively 0,879, 1,981, 0,841 and 0,903, 2,035, 0,864 for the configuration of the parking angle 0°, 90°, and without parking. The simulation results indicate that without parking on Pandanaran street is the best solution, so that the comfort and safety in road traffic can be achieved. Alternative parking management given that, KH. Agus Salim use the parking angle of 0° to keep the facility u-turn, or use the parking angle of 30° but the u-turn facility closes. Jalan Pandanaran using angle of 0° and rotate prohibition direction, or providing off street parking in the surrounding area of Pandanaran and provide facilities vehicle turning direction. This research just analyze road performance on one lane, so that further research can be do for analyze on-street parking on two lanes in each of the road.

PENANGANAN LONGSORAN RUAS JALAN PRUPUK – BTS. BANYUMAS (CIREGOL, KEC. TONJONG, KAB. BREBES) PADA KM. PKL 115+550 s/d KM. PKL 115+650 Yosef Aryanto; Maria Handayani S.; Siti Hardiyati; Bambang Pardoyo
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Final Project contained about the stability of the soil and it countermeasures on roads Prupuk - Bts. Banyumas, Ciregol, sub-district. Tonjong, district of Brebes. The Landscape around Ciregol is topography ridge sloping area that is very close to the river valley times pedes and prone to landslide. This road is a national road that connects the Tegal city - Purwokerto city and including the road class II which is built to connect the regions, thus supporting economic growth in the region and surrounding Ciregol. This road crosses the hills that contain layers of silt, sand and clay stone. Slope landslide occurred on roads Prupuk - Bts. Banyumas KM. PKL. 115+650 and between range time of February to March 2012 has occurred 4 times landslides. This final project analyzes value of the slope safety factor that included a condition when occured of the movement of soil slopes which is caused by instability on slopes due to degradation of soil layers / rocks, manual calculation of slope stability using Fellinius method and Plaxis computer program . Location of countermeasures is taken along 100 m from KM. PKL 115 +550 to KM. PKL 115 +650. From the analysis of data and computation known that the slip field of slope occurs at a depth of -28.5 m from the road surface. To deal with it,we try to used the alternative form to handling of landslides with reinforcement bored pile, each is 90 m and 25.6 m to the direction of for the transverse direction are applied to the cut slip field along the ridge of slope and combined with reinforcement soil retaining walls, geotextile or gabion each tried installed at the same location at the foot of the slopes. Geotechnical analysis using Plaxis software. Model of plastic elastic and collapse criterion of Mohr-Coulomb chosen as the soil model . The analysis showed that reinforcement landslide with bored pile with diameter of 1.5 m is placed at the top, middle and bottom of the slope to a depth of 37 m, respectively, 37 m and 30 m in combination with the soil retaining wall at the foot of the slopes as high as 15 m with a thickness of 2-4 m is handling that has increased the value of the safety factor, where the factor of safety of the existing condition of the original which is from 1,053 become 1,536, but if considered from the results of Incremental Shear strains apparently it still has little potential for landslides at the top of the slope, so it added with the use of geotextile reinforcement on the upper slopes as high as 5 meters to overcome it. Safety factor with the additional reinforcement is increased to 1.973.

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