International Journal of Civil Engineering

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    ANALISA KINERJA SIMPANG TIGA TIDAK BERSINYAL DI MASA PANDEMI RUAS JALAN CIKUTRA DAN JALAN SEKEJATI V
    (Universitas Indonesia – Universitas Pembangunan Jaya, 2021) Budiman, Anjar; Maudina, Atry; Ilman, Kandiga; Syahdan, M.; A, Raden Herdian Bayu
    Widyatama University intersection is located in Cibeunying Kidul District, Bandung City. At this intersection, traffic flow conflicts often occur which result in congestion, especially at certain hours because the location is an area of shops, settlements, and schools. Based on these problems, the authors analyze, and calculate the data from surveys conducted on Mondays and Saturdays, due to the beginning of community activities for work and vacation.. The results of the data analysis, peak hours are on Monday at 5-6 PM. and the results of the calculation of the existing state using the 1997 MKJI method, show that the performance of the intersection has a total volume = 2924 pcu/hour, capacity = 2661.69 pcu/hour , degree of saturation = 1.09. The existing condition of the intersection is already saturated due to DS > 1, therefore it is necessary to have an alternative to improve the intersection. By looking at the conditions in the field which are very densely populated, so the alternatives that can be used are the removal of side barriers and the implementation of a one-way system on the road..
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    ANALYSIS OF CONTROL OF COSTS AND TIME WITH EARNED VALUE METHOD ON ROAD MAINTENANCE PROJECTS IN PALMERAH DISTRICT, WEST JAKARTA
    (Horizon Research Publishing, 2019) Radhitya Akbar, Sandy; Setiawan, Asep; Istambul, M. Rozahi; Siddiq, Raden Herdian Bayu Ash
    Control in a construction project generally involves three main aspects, namely: cost, time and human resources. This study uses Network Planning analysis as a control function with the Critical Path Method (CPM) method in calculating the difference in cost and time needed to complete the work with a planned budget and schedule. This study also tried to implement an integrated control function, namely the Earned Value Method for a construction project. Based on the analysis and calculation in the 8th week (eight) of the total duration of the project, the analysis produces CPI value = 1.06 which shows that the performance of contractor's expenditure costs is more efficient than the planned budget. The description of the final condition of the project also shows that there is a residual budget value of Rp 321,642,608.01 or 5.55% of the total value of the overall project cost budget or Budgeted At Completion (BAC) which is an advantage for the contractor. The analysis also produces SPI value = 0.94 which means that the time performance index is of good value but the execution of the work is a little slower than the overall planned schedule.
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    THE BEHAVIOUR OF FROZEN SCORIA IN UNCONFINED COMPRESSION TEST
    (Horizon Research Publishing, 2019) Agustian, Yanyan
    The mechanical behaviour of the frozen or partially frozen soil changes significantly as soon as the ice holds the soil particles together. The strength of frozen soil can increase significantly. However, due to the temperature dependency and viscose nature of ice, the strength of frozen soils changes with time, strain rate and temperature. Water migration towards the ice lenses occurs during the freezing process depending on the characteristics of the soil, i.e. grain size and mineralogy, resulting in a significant change of the soil structure. Frost heaving may be the result, induced by the expansion of the water as it changes phase from frozen state. The aim of this study is to determine the unconfined compressive strength to calculate the unconsolidated shear strength of the frozen scoria under unconfined conditions. In unconfined compression tests, the influence of dry density ρd and water content w to the unconfined compression behaviour of frozen scoria was observed. The compressive strength of frozen scoria increases with the increase of w as well as the increase of ρd and the compressive strain of frozen scoria εf (axial strain at failure) is dependent on ρd.. Although some data scatters appear caused by the inhomogeneous of the samples, the effects of w and ρd to the stiffness of frozen scoria were observed. As well as initial Young’s modulus E0, secant modulus E50 of frozen scoria increases with the increasing of w and ρd.
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    DETERMINATION OF PRIORITY SCALE PROVINCIAL ROAD HANDLING IN PURWAKARTA DISTRICT, WEST JAVA
    (International Journal of Engineering & Technology, 2019) Setiawan, Asep; Barnadi, Yudi; Hirary, Marisa; Martoni
    The provincial roads maintenance and repair are often constrained by limited budgets, so that the road management priority is generally determined by policy factors, which often cause roads treatment disparity. The purpose of this study was to determine the criteria and sub-criteria, the weights of criteria and sub-criteria, as well as develop a mathematical equation in order to determine to roads handling priority in the area of Purwakarta, West Java. The Delphi and Cut Off Point methods were applied to determine the criteria, which result in three criteria selected i.e. road condition, traffic volume and economic factors respectively. Afterward, the Analytical Hierarchy Process was used to determine the weighting factors for the criteria and sub-criteria. The results for the criteria weights were as follows: the roads conditions had a weighting factor of 67.7%, the traffic volume of 18.3% and the economy of 13.0%. Based on the criteria and subcriteria weight, a mathematical equation was developed to define the handling priority of roads in Purwakarta.
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    EFFECT OF WORK SAFETY AND HEALTH KNOWLEDGE ON CONSTRUCTION WORKERS IN CAWANG-TOMANG CENGKARENG TOLL ROAD PROJECTS
    (Horizon Research Publishing, 2019) Setiawan, Asep; Akbar, Sandy Radhitya; Istambul, Muhammad Rozahi; Agustian, Yanyan; Saudi, Mohd Haizam Bin Mohd
    Safety at the location of road works is an important part that is often overlooked in the construction and maintenance of roads. Management of the safety of the road work location is the responsibility of the road manager. In general, knowledge about Occupational Health and Safety (OSH) is very broad, but there are several OHS components that are considered important to be used as a benchmark for understanding OSH. These components are K3 Definition and Initiation, K3 Management System (SMK3), Personal Protective Equipment (PPE), K3 Facilities and Infrastructure, OHS Risk. Research on the influence of occupational safety and health knowledge on occupational health on construction worker behavior was carried out to determine the effect of K3 knowledge variables together on the behavior of construction workers. And to know the effect of K3 knowledge variables partially on the behavior of construction workers. From the results of the study it can be concluded that there is a relationship or a low level of correlation between K3 Knowledge and Workers' Behavior while the value of the Determination Coefficient (adjusted r square) is 0.033 which means only 3.3% of K3 Knowledge aspects that affect Construction Worker Behavior and the remaining 96.7% is influenced by other variables. Based on the results of the T-test calculation using the method of calculation of Multiple Linear Regression the value of t count
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    EVALUATION OF PERFORMANCE NON-SIGNAL INTERSECTION ON TELEKOMUNIKASI ROAD INTERSECTION - TERUSAN BUAH BATU ROAD, BANDUNG - WEST JAVA
    (Horizon Research Publishing, 2019) Setiawan, Asep
    Evaluation of performance non-signal intersection on Telekomunikasi Road Intersection – Terusan Buah Batu Road is carried out by considering the geometric conditions of the road, traffic volume, side barriers, and environmental conditions around the intersection. Primary data and secondary data were analyzed by referring to the Indonesian Road Capacity Manual Method (MKJI 1997). From the results of the study, it was found that on Wednesday at 15:20 – 16:20, the maximum capacity value of 9,326/hours exceeded the base capacity of type 324 crossing (Co = 3,200 pcu / hour). The highest degree of saturation (DS) occurs on Monday at 6:20 - 7:20, which is 0.86. This means that the service level value is in class E (0.85 - 1.00). Namely, unstable traffic flow, solid vehicles, stagnant traffic and intersection volume higher are than its capacity, so that crossing conditions require handling. From the data above, it is known that the Telekomunikasi Road intersection - Terusan Buah Batu Road is not feasible to accommodate traffic flows and it needs to be handled by making stop lines, road signs as vehicle lane separators and warning signs, danger signs or by installing traffic signal lights.
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    FLOOD CONTROL IN AREAS OF CISUMDAWU TOLL ROAD SECTION 3 AT GALUDRA VILLAGE, SUMEDANG REGENCY
    (International Journal of Psychosocial Rehabilitation, 2020) Fada, Arsyadin Abil; Setiawan, David; Tisna, Muhamad; Abdurahman, Piki; Siddiq, R.H.B Ash
    Flooding is a problem that often occurs in urban and rural areas. Flooding can be caused by an overflow of drainage flow that exceeds its capacity. In 2019, Galudra Village, Sumedang Utara Subdistrict flooding happened, the cause of the flood was indicated since the Cisumdawu development project, based on observations in fields, the flood caused by the overflow of local drainage flows that caused inundation of 20-50 cm which inundated the paddy field and Galudra Village area. From the results of the hydrological analysis, it was found that the Catchment Area at the study site was divided into 2, with each area of Subcatchment 1 being 283.1 ha and the area of sub-catchment 2 being 414.9 ha. With extreme rain period of 2 years (R2) of 91.05 mm and an extreme rain period of 5 years (R5) is 107.59 mm. From the results of SWMM modeling, it is found that the most effective flood control is by bypassing the channel and enlarging the downstream channel dimensions in the form of a trapezoid.
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    FLOOD IMPACT REDUCTION STUDY BY APPLYING RAINWATER HARVESTING IN DE MARRAKESH RESIDENTIAL
    (Turkish Journal of Computer and Mathematics Education, 2021) Hasan, Fuad; Agustian, Yanyan; A, R. Herdian Bayu; Widyanto, Bambang Eko
    Flood is a natural phenomenon that can threaten the existence of human life, especially during the rainy season. In addition, the increasing need for residential facilities has an impact on changing land functions in an area that was originally an infiltration area to become a residential area. De Marrakesh Residential which has a land area of ± 117.025 m2 is a residential area located in the Kecamatan Rancasari of Bandung City. In terms of flood prevention, this residential area already has a retention pond and pumps that drains water into the Cipamokolan river. But in reality there are still puddles that inundate the residential area of De Marrakesh. To deal with this, a flood impact reduction study was carried out by applying rainwater harvesting. In this study, the analysis carried out is the calculation of the planned rainfall, the selection of the type of rain distribution, the calculation of the volume of rainfall, and the estimated calculation of the volume of rainfall that can be captured. From the results of the analysis and calculations, the application of rainwater harvesting can reduce the impact of flooding that occurs in De Marrakesh Residential.
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    FLOOD IMPACT REDUCTION STUDY BY APPLYING RAINWATER HARVESTING IN DE MARRAKESH RESIDENTIAL
    (Turkish Journal of Computer and Mathematics Education, 2021) Hasan, Fuad; Agustian, Yanyan; A, R. Herdian Bayu; Widyanto, Bambang Eko
    Flood is a natural phenomenon that can threaten the existence of human life, especially during the rainy season. In addition, the increasing need for residential facilities has an impact on changing land functions in an area that was originally an infiltration area to become a residential area. De Marrakesh Residential which has a land area of ± 117.025 m2 is a residential area located in the Kecamatan Rancasari of Bandung City. In terms of flood prevention, this residential area already has a retention pond and pumps that drains water into the Cipamokolan river. But in reality there are still puddles that inundate the residential area of De Marrakesh. To deal with this, a flood impact reduction study was carried out by applying rainwater harvesting. In this study, the analysis carried out is the calculation of the planned rainfall, the selection of the type of rain distribution, the calculation of the volume of rainfall, and the estimated calculation of the volume of rainfall that can be captured. From the results of the analysis and calculations, the application of rainwater harvesting can reduce the impact of flooding that occurs in De Marrakesh Residential.
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    FLOOD MANAGEMENT OF GADING TUTUKA, SOREANG AREAUSINGSWMM 5.1 MODELING
    (PalArch's Journal of Archaeology of Egypt/ Egyptology, 2020) Arifin, Mohammad Faizal; Nugraha, Dera; Sugandakusumah, Raden Izhar; Dwiyast, Elza; Hasan, Fuad
    The development of residents and settlements in Soreang City requires the construction of facilities & infrastructures that support especially flood mitigation, such as in the GadingTutuka area. Risks and impacts on the occurrence of floods that often occur in Kabupaten Bandung can be reduced or minimized by preparing and preventing floods. One thing to do is to know and know the areas that have the potential to flood. Therefore, it is necessary to restructure the existing drainage system and add new drainage networks and complementary buildings.
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    FLOOD WATER LEVEL MODELING IN BUKIT TIARA RESIDENTIAL
    (Turkish Journal of Computer and Mathematics Education, 2021) Hasan, Fuad; Maudyna, Atry
    Flood is a natural phenomenon that can threaten the existence of human life, especially during the rainy season. Bukit Tiara Residential, which has a land area of ± 282 hectares in Kecamatan Cikupa, Kabupaten Tangerang, plans to develop its area. To get a building elevation that is safe against flooding, a flood water level modeling study was carried out in Bukit Tiara Residential. In this study, the analysis carried out is the calculation of planned rainfall, choosing the type of rain distribution, calculating the time of concentration, determining the amount of rain intensity, calculating flood discharge and modeling the water level using the HEC-RAS program. From the results of the analysis and calculations, it is known that there is a need for land exaltation in several areas so that the planned land elevation is safe from the threat of flooding.
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    FLOOD WATER LEVEL MODELING IN BUKIT TIARA RESIDENTIAL
    (Turkish Journal of Computer and Mathematics Education, 2021) Hasan, Fuad; Maudyna, Atry
    Flood is a natural phenomenon that can threaten the existence of human life, especially during the rainy season. Bukit Tiara Residential, which has a land area of ± 282 hectares in Kecamatan Cikupa, Kabupaten Tangerang, plans to develop its area. To get a building elevation that is safe against flooding, a flood water level modeling study was carried out in Bukit Tiara Residential. In this study, the analysis carried out is the calculation of planned rainfall, choosing the type of rain distribution, calculating the time of concentration, determining the amount of rain intensity, calculating flood discharge and modeling the water level using the HEC-RAS program. From the results of the analysis and calculations, it is known that there is a need for land exaltation in several areas so that the planned land elevation is safe from the threat of flooding.
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    THE INFLUENCE OF SLACK LIME TO CLAY TOWARDS OPTIMUM MOISTURE CONTENT (OMC) AND MAXIMUM DRY DENSITY (MDD)
    (jurnal ilmiah teknologi informasi terapan, 2019) Widyanto, Bambang Eko; Agustian, Yanyan; Setiawan, Asep
    Peningkatan populasi di Indonesia khususnya pada wilayah Jawa barat telah mengakibatkan perubahan yang cukup signifikan pada bidang tata guna lahan. Area vegetasi yang hijau telah berubah menjadi area-area perumahan, gunung kapur telah ditambang dan hal-hal tersebut mengakibatkan bencana seperti banjir dan longsor pada area yang curam. Penyebab terjadinya longsoran adalah dikarenakan berat tanah lebih berat dari tahanan tanah itu sendiri. Salah satu penyebab hal tersebut adalah tinggi nya limpasan yang terjadi pada daerah hulu DAS dan kemampuan tanah untuk menyerap air. Tanah pada lahan yang digunakan untuk perumahan atau pun pada area yang curam harus lah dipersiapkan pada kondisi maximum dry density (MDD) dan Optimum Moisture Content (OMC) agar bisa menghasilkan kuat geser yang optimum dan dapat menghindarkan potensi terjadinya longsor. Kondisi tanah pada area hulu umum nya terdiri dari kondis lempung yang berasal dari pelapukan batuan dan partikel lain nya. Lempung memiliki pori-pori yang cukup kecil dan cenderung tidak lulus air hingga dapat dijadikan inti bendungan. Hal tersebut mengkibatkan perlu nya analisa untuk membuat campuran komponen yang dapat dikerjakan dan juga dapat membantu lempung untuk meningkatkan pori-pori tanah nya juga mengurangi berat tanah tersebut. Penelitian ini terdiri dari serangkaian pengujian yang terdiri dari beberapa persentasi lempung (CL) dan kapur padam (SL), persentasi nya adalah 95% CL – 5 % SL, 80% CL – 20% SL, 65% CL – 35% SL dan 55% CL – 45% SL. Pengujian ini menghasilkan kesimpulan bahwa semakin tinggi Kapur Padam maka Kepadatan semakin menurun dan semakin menurun kepadatan maka kadar air semakin tinggi.
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    LAND SUBSIDENCE OF KANTO PLAIN DETECTION USING JERS-1 SAR INTERFEROMETRY
    (Horizon Research Publishing, 2019) Agustian, Yanyan; Hasan, Fuad; Siddiq, Raden Herdian Bayu Ash
    Since InSAR technique has a capability to detect a small surface elevation changes over large area, InSAR system has been used widely for good resolution mapping and other applications on various applied sciences. InSAR imagery is applied to investigate surface change and result detailed maps of contour, which help to detect disaster areas. This research is aimed to estimate the land subsidence using the differential interferometric synthetic aperture radar (InSAR). The research object is located in the west part of Japan, Kanto Plain area, where ground water actively is being extracted in quite large scale and produces centimeters of subsidence every year. Over the analyzed area, the surface deformation was detected and it was only related to subsidence process. In other words, there is no surface arising or uplift of surface. It signed by color phase changes correspond from zero to minus values.
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    MORPHOMETRY STUDY AND INTEGRATED MANAGEMENT OF DIBAWAH LAKE WATERSHED SOLOK REGENCY
    (Horizon Research Publishing, 2019) Siddiq, Raden Herdian Bayu Ash; Hasan, Fuad; Agustian, Yanyan; KS, Ajeng Mayang; Saudi, Mohd. Haizam bin Mohd.
    Dibawah Lake is a tectonic lake located in Solok Regency, West Sumatra. It’s functioned as the West Sumatra Government as a tourist area, besides that it was also used as an irrigation water source. This study aims to obtain information on the characteristics of lake morphometry and formulate the concept of integrated management of Dibawah Lake Catchment Area. From the results of bathymetry mapping produces a lake area of 10998.1 ha with a circumference of 17.2 km, a maximum length of 6.4 km, a maximum width of 3 km, a maximum depth of 326.8 m, an average depth of 164.3 m and volume of 1688 million m3. The lake catchment area is 2881.7 ha and it is divided into 27 sub-catchments. The existing problems in the Dibawah Lake are (1) changes in lake area land cover into agricultural fields, (2) agricultural cropping patterns in slope areas, (3) lakefront settlements, (4) water quality degradation, (5) fish cages floating net and fishing ring. From the results of the SWOT analysis, the W-T (Weaknesses - Threats) strategy was chosen as the top priority. The W-T strategy focuses on strengthening and drafting rules, monitoring the implementation of rules, enforcing violations and socialization of the community.
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    PEMBUATAN ALAT PEDAS (PENDUGA DASAR SUNGAI) LEVEL 1
    (Fakultas Teknik, Universitas WIdyatama, 2022) TIM
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    PREDICTION OF LAND EROSION BY USLE METHOD IN DIBAWAH LAKE CATCHMENT AREAS, SOLOK REGENCY
    (Horizon Research Publishing, 2019) Siddiq, Raden Herdian Bayu Ash
    The Government of West Sumatra functioned Dibawah Lake as a tourist area. Besides that, it is also used as an irrigation water source. Location of the Dibawah Lake, which is in the highlands with slope levels between 28% - 40% gives rise to the potential for land erosion in the lake catchment area, which is quite high. This study aims to predict the magnitude of land erosion, sediment delivery ratio and sedimentation rate in lake bodies using topographic spatial analysis and the USLE (Universal Soil Loss Equation) method. From the results of the analysis, it was found that the Dibawah Lake Catchment Area reached 2881.7 ha, which was divided into 27 sub-catchments. The rainfall erosivity value (R) of the Dibawah Lake catchment area is 8219.46 mm. The types of soils in the Dibawah Lake catchment area are cambisols and Andosols with soil erodibility values (K) 0.22 and 0.20. The slope average of the Dibawah lake catchment area is 28% - 40%. The total land erosion in the Dibawah Lake catchment area is 1061.36 tons/ year. The Sediment Delivery Ratio (SDR) of the Dibawah Lake catchment area is 31.08%. With an SDR value of 31.08%, the sedimentation rate in the Dibawah Lake body is 329.85 tons/ year.
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    PUMP OPTIMATION IN 2D FLOOD AREA MODELLING
    (2021) Setiawan, Agung; Putra, Rais Haryamanda Syah; Kurniadi, Dedi; Oktaviani, Sintia; Widyanto, Bambang Eko
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    RE-ANALYSIS OF BUILDING FOUNDATIONS
    (PalArch's Journal of Archaeology of Egypt/ Egyptology, 2020) Atmoko, Rosep Dwi; Andriyanto; Sonjaya, Endang; Ramadhan, Jaya; Setiawan, Asep
    The carrying capacity of the foundation is the main thing that determines the ability of the foundation to withstand structural loads. A review of the re-analysis of the foundation in this study includes analysis of the allowable bearing capacity of the pile, planning the efficiency and bearing capacity of the group foundation by remodeling the superstructure using the Etabs V 13 program to get the reaction received by the foundation. The regulations used are SNI 03-2847-2002 regarding general regulations on structural planning and SNI 03-1726-2012 regarding earthquake resistance procedures for building buildings. From the results of the re-analysis of the structure, it is obtained that the bearing capacity of the group piles after the addition of the number of floors Q permit = 6298.45 <6549.77 kN (does not meet Q permit pile), P max = 915.75 kN > Supporting capacity of pile pressure permits = 749.816 kN (does not meet), so with these results it can be concluded that the piles used do not meet the priority factor.