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PERENCANAAN KONSERVASI DAS BRINGIN BAGIAN HULU DENGAN CHECK DAM DAN SUMUR RESAPAN Savitri Mustika Sari; Rizqi Fayunta A.; Joetata Hadihardaja; Suharyanto Suharyanto
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Changes in land use in the watershed Bringin affect the high rate of sedimentation watershed. This would result in the decrease as a function of watershed Bringin rainwater, recharge areas, water storage areas, catchers rainwater and drainage water. This condition will require a good handling in the field Bringin Watershed or in the river Bringin itself. The purpose of this research is to reduce sedimentation in the Bringin river caused by the erosion Bringin watershed. The research objective of these analyzes was to analyze the rate of erosion in the watershed Bringin and find solutions to overcome the erosion and sedimentation in Bringin. The method used in analyzing the rate of sedimentation in the Bringin watershed is a Universal Soil Loss Equation method (USLE). USLE method was used to predict the average rate of land erosion in the Bringin watershed. Input data required in this method is a USLE rainfall and runoff erosivity factor (R), soil erodibilitas factor (K), length-slope factor (Ls), land cover crops and crop management factors (C), and conservation measures practical factor (P). Results from the sedimentation rate analysis is a sediment yield of each sub-watershed on the Bringin watershed in units of tonnes / ha / yr. From nine sub-watersheds there are a critical sub-watersheds that is Bringin B9 sub-watershed with sediment discharge value of 23,963 tons / ha / yr over the allowable limit (10 tonnes / ha / yr). As a solution to control sedimentation rate is planning of sediment control construction (check dams) in Bringin B9 sub-watershed.

PERENCANAAN PENINGKATAN TERMINAL BUS KABUPATEN DEMAK Siti Nurkhamadah; Wulansari Wulansari; Moga Narayudha; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Demak currently only have a passenger terminal with type B, namely Bintoro Terminal located at Sultan Fattah Street. Problems that occur in the terminal are because there was no separation between the arrival and departure areas causing the queues of vehicles and internal circulation is not smooth. The purpose of this study was to evaluate the condition of existing terminal based on facilities and performance terminal, the terminal optimization plan, determine alternative location and layout plan of the new terminal and its internal and external circulation terminals, pavement structure inside the terminal, and the budget planning. The method used in this study is to evaluate the condition of the existing terminal, optimizing the existing terminal, and planning a new terminal if the optimization is not possible. The primary data used were technical data and data rate of arrival and departure of vehicles. Primary data are obtained by conducting direct surveys to observe the arrival and departure times at each service line. The results of the evaluation of the existing terminal indicate that the terminal is not feasible as terminal type B both in terms of facilities and the performance of the terminal. It is evident from the facility for the arrival and departure areas are not separate. Waiting place for passengers is also very limited and becomes one with the arrival and departure areas.Besides, the availability of terminal area covering 5829 m2 is very less compared to the standard type B terminal area that has been set by the Department of Transportation, which is area of 3,5 ha. If viewed from service lines performance, there are several lines of service that has the traffic intensity values greater than 1. From the optimization results also showed that with adding lines of service plans are obtained for the traffic intensity value of 1,11. The possible solutions is by planning a new terminal as a replacement existing terminal. Results obtained planning a new terminal locations located in the Village Jogoloyo, District Wonosalam, Demak regency.New terminal layout plan based on the needs of the land at the end of life plan based on growth predictions bus trips for 20 years.The results of the planning layout are the circulation patterns AKDP and AKAP bus, angkot and angkudes and private vehicles (cars and motorcycles). The intersection access to terminal is planned intersection of three of sleeves, type-344. The value of degree of saturation (DS) at the entry and exit terminal amounting 0,566 and 0,704 with each delay amounting 9,297 sec/smp and 10,892 sec/smp. Terminal access road is a ring road Demak (4/2D) under DS at the end of life plan is at 1,14, so it takes effort to improve the type of road being 6/2D and obtained values of DS at 0,76.Pavement planned using rigid pavement with a thick of base course is 30 cm and the surface layer of concrete is 20 cm. This layer will be used to coat the area serving AKAP and AKDP bus.Flexible pavement with a thickness of each layer is 35 cm for a foundation made of gravel sub-class A, 14 cm grade A layer of crushed stone as the foundation and the surface layer is 13 cm Laston MS 744 is used to coat the area of public transportation and angkudes. Pavement paving installed on any platform and access for pedestrians and sidewalk ceramics installed in the area of public service.Meanwhile, pavement paving installed on every platform and access for the pedestrian. Plan for the budget needed for the construction of the new terminal is Rp 28,987,398,500.00 includes costs of preparatory work, the main building terminal, construction of supporting facilities and infrastructure building.

ANALISA DAMPAK LALU LINTAS GUMAYA TOWER HOTEL DI JALAN GAJAH MADA SEMARANG Fachrul Rizka; Nur Hairani L.; Sri Prabandiyani Retno Wardani; Ismiyati Ismiyati
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Nowadays the progress of Semarang city is getting rapid, many shop centers rises in golden triangle areas, that are (St. Gajah Mada, St. Pemuda and St. Pandanaran). Most of people use their car or motorbike to do their activities through those streets. This condition caused the higher mobility each year and makes parking lots become important thing in transportation system. The problems about parking lots is important to research. The necessary of parking lot should be available. The bigger traffic volume makes bigger necessary of parking lot. If it does not enough, cars may take the spaces beside of road to park, and this caused some disruptions to others. This research will analyze the effects of traffic of Gumaya Tower Hotel which located at Gajah Mada street number 59-61 Semarang. Maximum accumulation method and queue theory are used in this research. Prymary data which necessary such as amount of car, time-parking, and service system. Whereas for secondary data to analyze traffic growth is car ownership data in semarang. The conclusion of this research is that effect of traffic in gumaya tower hotel area caused by the entrace and exit of hotel that not really good so can offend people who use gajah mada street.

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.

ANALISIS DAMPAK LALU LINTAS AKIBAT PEMBANGUNAN BEST WESTERN STAR HOTEL DAN STAR APARTEMENT SEMARANG TERHADAP KINERJA JARINGAN JALAN SEKITAR Hayu Rahayu; Misi H. Wijaya; Bagus Hario Setiadji; Wahyudi Kushardjoko
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Best Western Star Hotel and Star apartments located in the MT. Haryono are currently being built into the new residential alternative in Semarang. This triggers resurgence, resulting jam in the area will increasing. The situation of the MT. Haryono street before Best Western Star Hotel and Star Apartments are built was very crowded in the morning, afternoon and evening due to the shopping and offices centers. Because of these problems, it will be planned traffic management, road widening, and green design time. In this study will be discuss about traffic performance’s existing, traffic performance after the construction of the building, traffic performance in 2018, and traffic performance after the application of some solutions. The analysis method that will be used is the analysis method of MKJI 1997. The method is used to analyze the condition of roads and hotspot intersections. Vast amount of hotel rooms and apartment per unit is calculated to obtain the resurgence happened. The amount of Best Western Star Hotel and Star Apartment’s resurgence then charged on each road, after getting overburdened volume of traffic resurgence, do the analysis of road and hotspot intersections performances. From the amount list of vehicles in each years from 2007 through 2011 was found the growth rate. The growth rate is used to predict the traffic conditions for the coming 5 years, so it can be selected the solution that can solve the problems for the coming 5 years. Test result are as follows : 1). The Best Western Star Hotel and Star Apartment’s resurgence caused 844 pcu/hour. 2). The growth rate of the vehicle is 3,94% per year. 3). The traffic management deemed not able to overcome the jam’s problems that occured. 4). Need to do road widening at Sriwijaya street and transforming the Lampersari street to become 1-way street. 5). Need to do redesign the green time.

ANALISA DAMPAK LALU-LINTAS PENGEMBANGAN RS TELOGOREJO DI JL. K.H. AHMAD DAHLAN SEMARANG Aziz Zahwan; Riko Firmanda Muslim; Bambang Riyanto; Epf. Eko Yulipriyono
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Telogorejo Hospital is a hospital located in the city center (CBD) with a lot of activity around it, so the traffic is congested. Currently, the private hospital is under developing with targeted towards an international hospital. Therefore it is important to assess the impact of traffic caused by the development. At the beginning of the calculation, we evaluated the performance of intersections and roads around the site development. Then proceed with the calculation of estimated towing vehicle movement and percentage growth. Both were included in the analysis of the performance of intersections and roads no hotspot at the post opening. The method of analysis used is MKJI (Indonesia Jalan Capacity Manual) 1997 dedicated to vehicle traffic. From the analysis it is known that the existing conditions in 2012 was the performance of intersections and roads hotspot is still good. It can be seen from the value of DS was still below 0.75, the speed on the road is still higher than 20 kilometer per-hour, and delay at the no hotspot intersection is still less than 30 seconds / smp. At the time of its unveiling in 2014, there is a condition on the Anggrek intersection at workingday at morning peak hours its DS value greater than 0.75 is 0.88. While the results of the analysis of the long-term 5 years after opening in 2019, Anggrek intersection performance became much worse that is the highest DS value of 1,04, but the intersection Theresiana still good. Technical solutions to address the intersection of Anggrek at the opening is to provide non-permanent median on the major approach of limiting the right turn movement on each approach and also a straight movement in South Seroja approach. The median was installed as weekday morning peak hour. In the segment of Road Anggrek is made diversion parking from the road. While the solution to the current problems five years after opening is to install a non-permanent median at the Anggrek intersection so there is no right turn movement on each approach and also the straight movement in South Seroja approach. It also made a major widening in line at 1 m on each side and minor lane widening at 0.5 m in each side. Simpang Theresiana good condition at present, at the opening, as well as five years after opening no problems whatsoever so there is no meaningful treatment. It's just that every Sunday morning there is a market there for people who can not be predicted future conditions, thus requiring further research.

EVALUASI DAN PERENCANAAN KEMBALI BENDUNG SAPON Dyah Wahyu Apriani; Fajar Nugroho Utomo; Sri Eko Wahyuni; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Sapon weir, which located at Kulon Progo, Yogyakarta, is a hydraulic structure that its water supply is from Progo river. Sapon weir are used to flow through ± 1850 ha rice field area, from ± 2250 ha before at 2,3 m3/sec, and to fulfill the water needs in 4 sub districts at 0,2 m3/sec. The increasing function of Sapon weir from only covering the irrigation needs, to fulfilling the water needs it is the implementation of the regulation no 8 year 2005 about water resources. The analysis of flood design using Haspers Metod, FSR Jawa-Sumatera, HSS Nakayasu, HSS Gama 1 with flood design comparation from Pasing Capacity Metod that has 1123,96 m3/sec of flood discharge in hundred year periode (Q100). The design of Sapon weir consists of main dam, complement buildings and requirement water supply pump for 1383,97 m3/sec of flood discharge hundred years period. The differences of weir design change the weir dimensions and the complement buildings.

KAJIAN PELELANGAN KONSTRUKSI BERDASARKAN KEPPRES 80/2003 DAN PERPRES 54/2010 (Studi Kasus : LPSE Universitas Diponegoro) Wahyu Kuncoro; Nur Wakhid; M. Agung Wibowo; Hari Nugroho
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Construction sector has an important role in increasing economic growth. To create a condition that all necessary infrastructure that can guarantee an increase in economic activity. Procurement of facilities and infrastructure as well as the government's infrastructure, using the budget of income and expenditure (APBN/APBD). To supervise the use of budget, procurement regulations are arranged Keppres 80/2003 and amended by Perpres 54/2010. The tender process is expected to use electronic media (e-procurement) to be more transparent, accountable, effective and efficient, in line with efforts to eradicate corruption, collusion and nepotism. The method of research used descriptive research. The sampling technique used purposive sampling with data taken from Diponegoro University LPSE and questionnaires to the respondents as service providers, service users, and the auction committee. A descriptive analysis of data processing and data processing using a Likert scale questionnaire on the subject of the study variables.The results of comparative analysis based on the tender for the construction of Perpres 54/2010 is better than the Keppres 80/2003. In terms of the duration of the execution of the auction package is based on Perpres 54/2010 1.76 is faster, there was the time efficiency of 50%. The cost, Perpres 54/2010 is cheaper. In the case of list requirements, both rules have the same relative terms. In terms of accuracy in the selection of service providers in the Perpres 54/2010 be better. In terms of selection of participants is more stringent Perpres 54/2010 instead of Presidential Decree 80/2003. In terms of transparency in the determination of winners, that the new regulations more transparent. General opinion of the regulation services provider 54/2010 is better.

EVALUASI KELONGSORAN PADA RUAS JALAN WELERI – SUKOREJO KM. 55 KAB. KENDAL Galieh Alfanto; Yusni Apriatmoko; Indrastono Dwi Atmanto; Bambang Pardoyo
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 stability of slopes on Weleri roads, mechanisms and mitigation in Weleri – Sukorejo roads, Kendal Regency. The road was built to support economic growth in Weleri and its surroundings. The road across the hills and valleys that contain clay shale. Catastrophic landslide and slope occurs in Weleri – Sukorejo roads Km. 55, Kendal Regency. 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 and Simplified Bishop methods, geotechnical analysis and the use of retaining wall with bored pile reinforcement as an alternative method of reinforcement. 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 avalanche mitigation is to install a retaining wall combine with group of bored pile reinforcement with a diameter of 1 meter which is modeled with elastic-plastic beam elements. By using retaining wall combine with geoup of bored pile reinforcement, minimum slope safety factor beincreased and reached 1.562.

REKAYASA NILAI PEMBANGUNAN GEDUNG SERBA GUNA UNIVERSITAS NEGERI SEMARANG Jatmiko, Jatmiko; Wibowo, Ary; Sriyana, Sriyana; Dwi H., Jati Utomo
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Value engineering of multipurpose building project Semarang State University conducted for optimization of cost and functionality. Value engineering is used to evaluate the project plan in order to save the budget costs, optimize performance and efficiency of time but still consider the quality of the work. Application of value engineering aims to obtain high-cost work items, bring alternative design ideas to replace the original design on selected work items and calculate the cost savings from the application of value engineering. Stages of this value engineering plans that include; stages of information, creative stage, analysis stage and the stage of recommendations. Identification of high-cost items of work with cost breakdown model and Pareto charts. Potential work item function analysis is performed to classify the basic functions and secondary functions in order to obtain the ratio of cost / worth, then performed a zero-one matrix analysis to determine the best alternative of testing against several criteria functions presented. Value engineering analysis results indicate that cost savings, for items slab occurred saving the value / cost of Rp. 3.274.245.393, 35 or 51.20 % of the initial cost of Rp. 6,394,649,122.60 and 8.57 % of the total project cost. For items foundations occurred saving the value / cost of Rp. 318,946,000 or 41.27 % of the initial cost of Rp. 772,790,000.00 and 1.19 % of the total project cost. For the cost of the item walls Eco Lite Panel larger Rp. 140,847,906.93 of the cost of masonry, but in terms of execution time Eco Lite Panels faster than bricks with the result of the acceleration time fee of Rp. 224.734.555,16 or 21,82 % of the cost of the wall work and 0.59 % of the total project cost. Physical Eco Lite Panel calsiboard coated on both sides to make more smooth and flat surface so that the surface can be directly painted. So the total cost savings after the engineering value is equal Rp. 3.817.926.101,65 or by 9.99 % of the total cost of the overall work of Rp. 38,199,420,000.00.

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Kota semarang,

Jawa tengah

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