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International Conference on Coastal and Delta Areas
Published by Universitas Islam Sultan Agung
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Core Subject : Science, Education,
Earth & Planetary Sciences Other
Arjuna Subject : Psikologi - Psikologi (Lain-Lain)
Articles 121 Documents
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Dealing With Issues in Construction in the Coastal Area of Soft Clay: Solution, Strategy & Implementation Pratikso Pratikso; Soedarsono Soedarsono
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 this condition, cities with coastal area have soft clay soil. The main problem is that the soft clay soil has bee n suffering from great settlement due to consolidation that makes the buildings around become instable, it causes the landfill is done on the soft soil. Suppose the consolidation happens naturally as it is, it will run in a relatively longer time, years or even decades. In order to be stable, it needs longer time, as consequence, the soil is not able to be used for building to which it will give damage in term of time and finance. It is why engineering is needed to fasten the consolidation process in order to make the soft clays soil able to be used efficiently. One of particular methods to fasten the consolidation process is building vertical drain. There are many ways and materials that can be used to set up vertical drain, among which are making small holes through drilling then filling it up with porous materials such as sand and gravel stone or coir. Nowadays, new method has already been available to fasten the consolidation process by geosynthetic. It is Prevabicated Vertical Drain made of polymer material. The use of geosynthetic for vertical drain can fasten the consolidation process significantly. The speed process of consolidation depends on the types of soil and model of the vertical drain as well as the distance among holes. Vertical drain can only accelerate the settlement due to consolidation, but it does not minimize it. By applying the drain model, time for the soil settlement can possibly be arranged that makes the soil of reclamation more ready for use. Keywords: consolidation, vertical drain, goesynthetic
FEASIBILITY REVIEW OF INVESTMENT DEVELOPMENT OF PARKING BUILDING ( Case Study At Telogorejo Hospital Semarang) Wan Okto Ariyansah
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

Telogorejo Hospital Semarang is one of the centers of activities in the field of health services in the city of Semarang. The increasing number of patients, visitors, doctors, and employees using private vehicles resulted in increased volume of incoming vehicles, making it difficult to get adequate parking space. Lack of parking space causing inhibition of traffic flow, so require parking facility in the form of parking building. This study aims to analyze the characteristics of parking, parking space requirements and analyze the feasibility of investment in the construction of parking lots, especially in Telogorejo Hospital Semarang. so it can get the conclusion that the feasibility of investment in building parking Parking Hospital Telogorejo Semarang either this can be seen from the results of Telogorejo Hospital Analysis Semarang using BCR method to get the value of 1.41. Value 1.41> 1 which means the project is feasible to be implemented, because it has a high benefit value. And using the NPV method generated profit obtained is Rp. 41,622,088,410 The value of profits obtained is not so great but there is no minus (loss). Using the IRR method generated 15.58% which is above the provisions of BAPPENAS that is equal to 15.58%. Keywords: Feasibility, Investment of Parking Building Construction
EFFECTS OF NATURAL ZEOLITE AND UREA ON NH3 EMISSION AND NITROGEN UPTAKE IN RICE SOILS Kharisun .; M. Nazarudin Budiono
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

The research was aimed at investigating the effect of natural zeolite of Taskmalayan deposit and urea fertilizer on ammonia (NH3) emission, nitrogen uptake and rice yield. The researh was a pot experiment using Eutrudept soil type conducted in a green house in the Agriculture Faculty, Jenderal Soedirman University. The experiment was factorially arranged in a randomized block design. The factors were composed of three levels of natural zeolite (equivalent to 0, 1000 and 2000 kg/ha, respectively) and two types of urea fertilizers with levels equivalent to 0, 100, 200 kg N prilled urea/ha and 0, 100, 200 kg N supergranule urea/ha, respectively. Ammonia emmited was determined using Sulfuric Acid Entrapment System, whereby each experimental pot was covered with a transparent plastic chamber into which N-free air was transferred. NH3 emitted was trapped in by dilute sulfuric acid solution. The results of the experiment indicated that application of natural zeolite could reduce N volatilized by 46 %, from 78,78 to 42,11 mg N/pot. The highest N volatilized was observed at the application of prilled urea at 200 kg N/ha (197.23 mg/pot). The applications of natural zeolite did not significantly affect nitrogen uptake by rice plants.Keywords : Zeolite, ammonia emission, rice
Agricultural Land Evaluation on Coastal Areas of Kebumen Regency Based on Land Degradation Levels for Biomass Production Sisno .; Prasmadji Sulistyanto; Suwardi .; M. Nazarudin Budiono
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 research was aimed at identifying : (1) the type and area of agricultural land in the coastal areas of Kebumen Regency; (2) the degree of land degradation and (3) the status and the causes of land degradation. The research was undertaken using a semi-detail soil survey based on the interpretation of Landsat imagery. Methods of observation and data analysis were undertaken in accordance with the government regulation of the Republic of Indonesia No. 150/ 2000 concerning land degradation control for biomass production and Minister of Environment Regulation No. 7/2006 regarding the measurement procedures for standard criteria of land degradation for biomass production. The results indicated that: (1) existing land uses consisted ofirrigated rice field (14,849.7 Ha); rain-fed rice field (2,210.3 Ha); dry land (3,189.2 Ha); garden (844.7 Ha), grasses and shrubs (446.1 Ha); settlement, bodies of water, and beaches (9,819.1 Ha); (2) the severity of land degradation was grouped as follows: very low (10,993.5 Ha); low (20,359.2 Ha); and medium 6.4 Ha; (3) land degradation status of the area was classified as slightly damaged (score < 7) with soil fraction, soil porosity, soil permeability and redox potential values as the main determining parameters of land degradation
Research of Flyover as a Solution to Congestion of Intersection Junction A Case Study: Jalan Jatingaleh Semarang Rahmat Mudiono
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

Jatingaleh is located in the southern city of Semarang which is a central meeting point between the upper and lower Semarang where the vehicle flows in through a combination of local current and regional traffic, and the flow of vehicles coming in and out from the highway. The main cause of the problems that occurred in the area of Jatingaleh is due to the number of vehicular movement that occurs at the intersections. In view of the above, it is necessary to analyse the existingconditions and proffers some solutions. Before carrying out an analysis, a field surveys at peak hours, for example, in the morning (06:00 to 08:00 am) and afternoon (04:00 to 06:00 pm)should be conducted. The number of vehicles was counted manually with “short-breakcounting” according to types of vehicles. From the analysis study, the author found out that the degree of saturation (DS) was1.61 between Teuku Umar and Setia Budi road during the morning peak hours and 1.56 during the afternoon peak hours. This means that the capacity of the existing road is no longer able to accommodate the traffic flow. One of the solutions for the congestion that occurs at the intersection of Jatingaleh is to apply the efficiency of the intersection that is not in a plot with a Fly over, Underpass and the combination of Fly Over-Underpass. Based on the flow reduction calculation with 3 comparative modeling it show that the Fly Over is the most technically efficient to be applied in this research.
Deflection Of Rigid Pavement Nailed Slab System With Lateral Loads Adolf Situmorang
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

Indonesia is a country with a soft land area of about 60 million ha or about 30% of the total land area of about 198.6 million ha. Soft soils include peat soils, clay soils and other soft soils scattered throughout the province in Indonesia. If a rigid pavement or flexible pavement rigid pavement layer is built on soft soil without prior repair on the ground, it will be damaged as cracks in the concrete or wavy in the asphalt layer, this is due to soft soils, Which is not uniform which can cause damage to the pavement layer. Rigid pavement with nailed slab system is one solution to overcome the frequent breakdowns of soft soils, and it is hoped that using pavement models will increase the pavement strength when placed on soft soil. This pavement consists of 15 cm plates and 1-2 m long poles, 15-20cm in diameter, which are monolithically coupled with plates. From the results of several previous studies that pavement is more resistant seen from small plate deflection when compared with without using a pile or anchor. But due to repeated lateral load will cause a gap between the pile and the subgrade around the pile that can reduce the friction value along the pile so as to reduce the modulus of subgrade reactions. Keywords : modulus of subgrade reactions, lateral loads, soft soil
The Handling of Tidal Flood (Rob) with polder system Ikhwanudin Ikhwanudin
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

Rain often causes inundations in the area of Semarang. Currently,drainage system in the area of East Semarang is strongly influenced by the presence of tidal water. It causes the social and economic losses due to the inundation of rob that floods the northern coast of Central Java. Therefore, some studies are necessary to overcome the problem of flood and rob that exist. The mitigations of tidethat get on the land (called rob) are also needed. To remove the flood of East flood canal Normalization (BKT), Tenggang River and Sringin River, pumps with detention pond are required. Modeling designis done by using HEC-RAS application program for modeling river water flow, and RiverAnalysis System (RAS), which is created and developed by Hydrologic Engineering Center (HEC). The appropriate flood control and handling systems are polder systems, with the infrastructure components of sea dams utilized as protection against tide (rob) towards the mainland of Tenggang River watershed and Sringin River watershed. The rainwater expenditure falling in the watershed uses pumps and detention ponds. Keywords: Polder, Drainage City, Dam
Feasibility Study Development Of Randugunting Dam By Taking Larap Factor (Land Aquisition and Resettlement Action Plan) Muji Rifai; Pratikso Pratikso; Soedarsono Soedarsono
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

Water is an essential ingredient for food availability, health and survival. Dams is one form of building in an effort to conserve water resources. The Randugunting Dam Development Plan in Blora Regency enters into 65 priority Dam in NAWACITA. Then to determine a project is feasible to be implemented or not, feasibility studies should be undertaken so that the business or project that is run not be in vain in the future. Any proposed public or private program or activity that is beneficial to the public interest and will result in an impact on 200 or more persons and requires compensation, it should be supplemented with a Land Acquisition and Resttlement Action Plan (LARAP) the policy covers: 1) Land acquisition and / resettlement should be avoided or minimized as far as possible; 2) If procurement of land is inevitable, the compensation provided and the transfer of the PAP should be accompanied by coaching efforts; 3) WTD receives appropriate compensation based on calculated replacement cost of affected assets; 4) In determining the amount of compensation value should be based on consultation and discussion with WTD. The cost components of the Randugunting Dam Development include pre-construction costs (land planning and acquisition / LARAP), construction costs and maintenance operation costs. Benefit components are viewed from the parties concerned with the project, especially for people in need including agriculture, fisheries, raw water, flood control, electricity and tourism. Development cost of Randugunting Dam with investment of Rp. 861.714.687.361 for 50 years. In view of the calculation results, NPV can be concluded of 139.866.838.506> 0 then the NPV is acceptable. The rate of return with the interest rate of 11.63% then the value of IRR of 11.63%> of DF = 10.49% so that investment is feasible. With the age of 50 years reservoir with the value of BCR of 1.16> 1 then the dam construction is feasible. BEP (Break Even Point) of the analysis produces BEP in the 30.4 year. Keywords: Feasibility Study, LARAP, Dams
Declining Analysis of Service Function Area Irrigation Sragi Pekalongan Regency Budhi Antoyo; Soedarsono Soedarsono; Moch Faiqun Ni&#039;am
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

Irrigation Area Sragi is one of irrigation areas of central government authority with a standard acreage of 3426 ha and functional area of 3212 ha located in Pekalongan Regency. The availability of water and the water supply from the weir is sufficient but the downstream supply can not be met. The purpose of this research is to get index of irrigation network performance of Sragi Irrigation Area and priority scale of handling to decrease function of irrigation network service of Irrigation Area of Sragi. Descriptive approach method to collect information about the conditions that are happening on the Irrigation Network Dareah Irrigation Sragi Pekalongan Regency. The results are the variables of irrigation buildings, the implementation of water distribution of buildings in tapping buildings, anticipation of water loss, sedimentation in irrigation networks, human resources and water management affect the decline in service function D.I Sragi. The most influential variable to the decline of irrigation area service function is irrigation building variable which is shown by regression coefficient value equal to 0,106. Keywords: service function, irrigation area, Sragi
INNOVATION IN IMPROVING THE QUALITY OF SALT PRODUCTION AT COASTAL AREAS: A LITERATUR STUDY Siti Sumiati
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

Indonesia has avast coastal areas, but the fact still have to import salt from abroad. For that it is necessary improvements in yield and improve quality salt. Studies on salt production improvement efforts have been conducted by previous researchers.This paper aims to examine new technologies in the production processof salt includes Electrolysis, Evaporation and Geomembran etechnology. The results of this literature review can be used as a reference to the use of new technologies in the salt-producing areas in Indonesia.Keywords: Salt production, geomembrane, electrolysis, evaporation.

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