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International Conference on Coastal and Delta Areas
Published by Universitas Islam Sultan Agung
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Other
Arjuna Subject : Psikologi - Psikologi (Lain-Lain)
Articles 121 Documents
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THE EFFECT OF LAND SUBSIDENCE TO CHANGE IN THE MOST EXTENSIVE PUDDLE IN SEMARANG Pratikso .; Soedarsono .
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Semarang city can generally be divided into two areas, namely urban areas over the hilly soil conditions, loud and reaches a height of 350m above sea level, and the lower town is a fine-grained alluvial plains. In the area, under the terms of the geography, the terrain is flat, water-saturated, its location is on the waterfront and is traversed by several rivers, most of the land in the form of settlements that grows naturally and irregularly, the land suffered subsidence (land subsidence) because of the extra load on it and excessive groundwater, based on current conditions, in general most alluvial Semarang is frequent inundation of rain and tides. To be able to plan land use and economic activities well, it is necessary to note changes in broad pools of the region because of land subsidence due to consolidation.The purpose of this study is intended to create a map of inundation due to land subsidence and predicting the area inundation will occur from time to time. This study focuses on getting the data of land subsidence due to the consolidation of the land that became the main cause of subsidence resulting in the addition of extensive flooding. From these data, it is converted between land subsidence with water level inundation occurred.This research is conducted by conducting land drilling with drill machine in 24 points to a depth of 30m to obtain soil samples in five sub-districts of North Semarang, Semarang Genuk, East Semarang, Semarang Gayamsari and Central Semarang. Samples are obtained and then tested the mechanical properties of the soil and the soil in soil mechanics laboratory of Unissula. From the lab test results are then analyzed to determine the amount of land subsidence due to consolidation. Finally, the writer conducts extensive analysis of changes in inundation as a result of subsidence by using GIS.Implementation of this research will result a map of inundation area in Semarang and amended from time to time. This study is planned for three years. In the first year on the stage of 70% has been implemented with the drilling machine on 8 points with a depth of 30m. Furthermore, the sample has been tested and mechanical properties of the soil in Soil Mechanics Laboratory of Unissula. From the analysis it appears that the more north (toward the ocean) the greater the decline, but the decline in the longer time.Keywords: consolidation, reduction in area, large puddles.
Study of Institutional Evaluation in Drainage System Management of Semarang as Delta City Henny Pratiwi Adi; S. Imam Wahyudi
International Conference on Coastal and Delta Areas Vol 1, No 1 (2015): Management and Engineering in the Sustainable Development on Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Semarang City is one of the cities located in deltaareas. Semarang face problems that always floods inundated parts of the city in every year. Flooding is caused by several things including the change in land use, intensity and high rainfall, erosion and sedimentation in the river channel, decreasing the capacity of the river, building damage flood control, and planning control systems are less precise. Efforts to control the flooding has been done, but more important is how big investmentcan operate and be managed according to plan is to deal with the flooding problem. Therefore, studies are needed to evaluate the management of the drainage system in Semarang city. The data obtained in this study through the literature and the parties related to the management of drainage in Semarang. Literature study conducted to evaluate institutional managers drainage system Semarang. The aspect covered are institution aspect,regulatory aspects, financing aspects, community participation aspect and technical and operation aspects. The results showed that depend on institutions aspect, the existing institutional model is still using the drainage system management by the government, where this management model is facing manyobstacles, especially in terms of financing. Therefore we need a model institution that can improve community participationactively in the management of drainage sytem of Semarang.
A Review on Certification Procedure for Professionals Engineer based on Engineering Act in Indonesia Irika Widiasanti; Rizal Z Tamin
International Conference on Coastal and Delta Areas Vol 1, No 1 (2015): Management and Engineering in the Sustainable Development on Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

The coastal area has a very strategic value because the city nearby this area can bedeveloped as a port city, recreation and conservation. Development of coastal areas requires professional human resources. Professional credentials for individuals can be attained through professional certification. This paper presents the procedure of professional certification base on Decree no. 11,2014 on Engineering. This study is a descriptive and qualitative research, carried out through the stages of literature study and data collection include professional competence assurance system, profession licence, qualification assurance systems engineering profession. Data were analyzed reference to best practices certification procedure in Malaysia, Singapore and the Philippines. The study show there are two stages of examinations and three standards in the certification procedure. The examinations are professional examinations and competence examinations. Professional examinations held in the Professional Engineers Program while competence examinations organize byProfessional Certification Body. The standard that used are the Engineers Service Standard, Engineers Competency Standard, and Engineers Professional Program Standard. All of these standards underlying the certification engineering procedure. Institutions directly involved in the certification process are the Board of Engineers Indonesia, Higher Education that organizer Profession Engineers Program, Professional Certification Body, and The Institution of Engineers Indonesia
Risk-based Maintenance Model for Road Network Sulistyowati Sulistyowati; Ummi Chasanah
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Road is an asset for a country to develop. To be able to serve until its planned service period road needs maintenance. On the other hand maintenance does needs budget to deal with. As budget for maintenance is limited, cost optimization becomes very important. This research used risk-based maintenance model and multi-criteria decision making and weight method for a road network. For this study we chose a road network comprised of seven roads. The road network comprised of jl. Sirodjuddin, jl. Prof. Sudharto, jl. Setiabudi, jl. Gombel Lama, jl. Gombel, jl. Teuku Umar and jl. Dr. Wahidin. The data we needed came from assessing each road’s surface condition and questionnaire where some professionals in civil engineering actively involved. From the data we gained and analysed, we found a risk category for each road. From the risk category we would be able to develop maintenance action plan for each road. Based on the maintenance action plan, cost optimisation will be achieved. Keywords : road maintenance, risk-based maintenance model, road network, analytical hierarchy process
Analysis Slope Stability And Seepage Logung Dam – Kudus Central Java Muhammad Taufiq; Wahyu Kurniawan
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Logung Dam is located in Dukuh Slalang, Tanjungrejo Village, Jekulo District and Dukuh Sintru, Kandangmas Village, Dawe District. Logung Dam has an area of inundation of 144.06 ha and a normal catch of 20,150,000 m3. This analysis is to know the safety of the slope and seepage with the result of the approaching analysis so that it can give it to the dam. Zone analysis conducted with the location of the dam, physical testing of the material in the clay laboratory (zone 1), sand (zone 2), random (zone 4), show the results indicating the soil as the analysis material meets the dam requirements. Analyze the data required by the planner's consultant in the laboratory. Soil parameter data used in PLAXIS 8.6 and Geostudio 2007 programs: cohesion, c; Sliding angle in soil, φ; Slope angle,  ;  nd  he  eigh  o   he  ol me o  land,  ;  od l s o  elas ici  ,  ;  ermea ili  ,  ;  nd poisson ra io,  rom soil parame er da a can  e  o nd nialai cohesion  c         , shear  orce  φ                 , slope angle        :   upstream, 1:35 do ns ream and  ol me  eigh  Soil           6  rom  L XIS da a a   he  al e o  deformation = 26.46 m, active pore pressure = -927.61 m, effective soil voltage -2.70x10-3 kN / m2; down slope safety = 1, 26 and seepage = 46,41x10-3 From geostudio program can obtain upstream slope safety factor = 1.41, downhill slope security = 1.23 and seepage = 63.30x 10-3.Air dam safety analysis to normal safe, For seepage safety by grouting or injection of cement on the ground beneath the foundation along the dam. Keywords: Analysis, Security Factor, Plaxis and Geostudio
Analysis of Project Delays on the Work of Abrasion Handling of Panjang Island of Jepara Eka Yani Astuti
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Ideally, in the construction project, all components of the contract are clearly described to the contractor regarding the agreement, technical specifications, plan drawings, general and special terms, quantity list, implementation plan and schedule to limit the project completion time. However, the cases experienced in the construction are a discrepancy between the plan and the implementation schedule that has been made with the realization in the field, resulting in delays in project completion. The purpose of this study (1) Analyzing the variable factors of labor, work tools, materials, finance, managerial, planning and scheduling of project delays on the work of Panjang Island abrasion handling. (2) Analyze the most dominant variable about project delay of Panjang Island abrasion project. This research method is descriptive quantitative. The research location is in DPUPR of Jepara regency with total sample is 40 respondents. The data analysis is multiple linear regression using SPSS V.21. The results showed that (1) labor, working tools, material, finance, managerial, planning and scheduling variables contributed to the delay in Panjang Island abrasion project. This can be seen from the value of F arithmetic of 136.288 while for the value of F table is 2.34. In addition, the significance value is 0.000. (2) The most dominant variables on the delay of Panjang Island abrasion project are financial, planning and scheduling.   Keywords: Construction Project, Employment, Project Delay
The Effectiveness Of Water-Filled Rubber Weir Management On Flood Mitigation Caused By Rain And “Rob” (Java Slang) In Demak District Fatchur Roehman
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

In Indonesia, there are many sources of water. They can be ground water, rivers or seas which are certainly not easy to process these resources. Many problems have to be solved in processing these resources, such as flooding and "rob" problems in the Demak district. When dry season comes, how can we provide raw water and pure water for irrigation and other problems? One of the right solutions is to make a rubber weir that contains water. Normally, weir contains wind but this study tries to use different methods of filling weir by using water to make it easier and more practical in the treatment. Identifying problems such as alternative flood and rob handling is intended to unravel the problems in traffic congestion, submerged settlements and industrial estates, and analyzes the stability of the flow that occurs in the water-filled rubber weir model. The formulation of the problem with the model of water-filled rubber weir must be followed by the experimental system conducted in the Lab Faculty of Engineering UNISSULA Semarang. Therefore, the main problems studied in this research are the experiment of the waterfilled rubber weir, the hydraulic effectiveness of the water-filled rubber weir, and stability analysis of numerical models of the water-filled rubber weir. The purposes of this study are analyzing the hydraulic effectiveness of water-filled rubber weir with SOBEK application, analyzing the characteristics of the water-filled rubber weir to obtain a good weir material based on appropriate technology, and conducting a stability analysis of the flow occurring in the water-filled rubber weir model, prototype simulation of water-filled rubber weir. Keywords: Management effectiveness, Water-filled rubber weir, Flood and rob prevention
CHARACTERIZED OF SLUM AND SQUATTER IN WATERFRONT (CASE Risyal Rasyid; Arya Ipaldi; Mila Karmilah
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

City has always been attractive for people who want to increase the life. Droves of people come and meet the big cities, one of which is Jakarta as the capital city and central government activities in Indonesia. But the phenomenon is not accompanied by the ability and purchasing power of immigrant communities, which in the end they will cause a lot of urban social problems. One of the problems of urban development is the emergence of an increasingly heavy urbanization resulting imbalance pace of development in the city than in the village. The rapid urbanization is not accompanied by the local government's ability to meet the society needs resulted in the growth of unplanned slum and squatters are often even be on areas that should tiodak (riverbanks, the banks of the rail or on lands illegally). This raises many slums, especially in North Jakarta. One of the locations recorded in the slums of Jakarta BPS is a Pejagalan district. Based on the results of the study note that the slums are located in the Pejagalan District has the characteristics as slums are located on the waterfront Keywords: Characteristic, Waterfront, North of Jakarta
The Lost of Semarang Coastal Areas due to Climate Change and Land Subsidence Suripin .; Helmi Muhammad
International Conference on Coastal and Delta Areas Vol 1, No 1 (2015): Management and Engineering in the Sustainable Development on Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Semarang is the capital of Central Java Province, located in the northern part of JavaIsland, Indonesia, with an area of about 374 km2 and inhabited by about 1.57 million people. It has been reported for some time that coastline of Semarang is retreated. This backwards movement is mainly due to coastal erosion triggered by climate change effects, land subsidence, and coastal structures jutting to the sea. During the last two decades (1990-2010) the annual rainfall has increased 18.66 mm per year, while the maximum daily storm increased 0.82 mm/year, and the storm intensity increased annually by 0.4 - 0.5 mm/hour. Consequently, the runoff is estimated toincrease by 8% to 30%, and the flooded area increased about 5% to 15% for the next two decades. Based on sea level data recorded in Tanjung Emas Harbor during the period of 1985 up to 2008, it was found the annual relative sea level rise and land subsidence on the station are 5.536 cm/year and 5.165 cm/year consecutively, and the sea level rise is 3.7 mm per year. Interpretation of satellite imagery in 1991 and 2009 showed that 25.6 km of the total 36.6 km is eroded. This erosion has removed the coastal plain area of 1,764.5 ha. This paper is aimed to discribe and discuss the lost of Semarang Coastal Areas and sum up with concluding remarks.
Model of Pontoon by Bamboo Material for Subtituting Land Fill Embankment Rifqi Brilyant Arief
International Conference on Coastal and Delta Areas Vol 1, No 1 (2015): Management and Engineering in the Sustainable Development on Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

This research was intended to find out new way of building foundation which wascompatible to soft soil located around swamp or embankment area. This foundation had to have big bearing capacity, gives small settleent by using bamboo that it was affordable and easy to afford. The foundation had to be visible to work out by the bricklayer and did not need sophisticated technology such as heavy machinery that this could give benefit to low economy community living in the area. This research was specifically to find out proper combination between water and soil where its powerwas mobilized by the foundation, as this has been mobilized by using one of them whether the water (Pontoon Foundation) or the soil itself (Conventional Shallow Foundation). The use of pontoon by far had been limited to raw material (drum). While conventional foundation required, the original soil which would settle significantly because of embankment above it. The method used in the research adopted the use of full-scale testing 1:1 and was done physical test to know the strength with rightcombination to get distribution of bearing capacity between soil and water. This research was located in the soft clay which was still being used as an embankment located in UNISSULA Semarang.

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