Claim Missing Document
Check
Articles

Found 28 Documents
Search

PENGARUH PENGGUNAAN MATERIAL CETAK TERHADAP WAKTU DAN BIAYA PROYEK PEMBANGUNAN RUMAH SEJAHTERA TAPAK (RST) Imam Wahyudi; Ludfi Djakfar; Arief Rachmansyah
Media Teknik Sipil Vol. 12 No. 2 (2014): Agustus
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jmts.v12i2.2285

Abstract

PENGARUH PENGGUNAAN MATERIAL CETAK TERHADAP WAKTU DAN BIAYA PROYEK PEMBANGUNANRUMAH SEJAHTERA TAPAK (RST) Product Innovation Effect Of Housing Housing Consumer Confidence To Developer (A Case Study Of Housing In Jember )Imam Wahyudi1, Ludfi Djakfar2, Arief Rachmansyah31,2Jurusan Teknik Sipil Universitas Brawijaya MalangJl. MT. Haryono No 167 Malang, IndonesiaAbstractThe purpose of this study was to determine the effect of the use of printed materials to the time and cost of development projects Tread Welfare House in Malang and determine the ratio of the time and expense . The method used to analyze the cost and time by using earmed value concept . Estimated completion of aspects of the schedule obtained approximate completion time ( TE ) was 70 days with the use of conventional materials , while using printed material is for 64 days . This case shows the project using print materials to accelerate approximately 8 days of the 72 -day plan . The conclusion of this study is the effect of the use of conventional materials based on the use of earned value schedule states that a plan with almost the same execution time by 72 days to 100 houses , while the performance in terms of cost , is effective for less than the cost of implementing the plan , so there are advantages Rp.72,396,667.04 amounted to 100 houses . While using print materials faster implementation 8 days from the time the plan is as much as 64 days to 100 houses , while the performance is analyzed in terms of costs with earned value concept can be assessed effectively with a gain of Rp.125,139,788.80 to 100 housing units .Keywords : Home Prosperous Tread , Conventional Materials , Materials PrintAbstrakAdapun tujuan dalam penelitian ini adalah untuk mengetahui pengaruh penggunaan material cetak terhadap waktu dan biaya proyek pembangunan Rumah Sejahtera Tapak di kota Malang dan mengetahui perbandingan terhadap waktu dan biaya. Metode yang digunakan untuk menganalisis biaya dan waktu yaitu dengan menggunakan earmed value concept. Perkiraan penyelesaian dari aspek jadual didapat perkiraan waktu penyelesaian pekerjaan (TE) adalah 70 hari dengan menggunakan material konvensional, sedangkan menggunakan material cetak adalah sebesar 64 hari. Hal Ini menunjukkan proyek dengan menggunakan material cetak akan mengalami percepatan kurang lebih 8 hari dari waktu rencana 72 hari. Kesimpulan dalam penelitian ini adalah pengaruh penggunaan material konvensional berdasarkan penggunaan earned value schedule menyatakan bahwa waktu rencana dengan waktu pelaksanaan hampir sama yaitu sebesar 72 hari untuk 100 unit rumah, sedangkan kinerja dari segi biaya dinilai efektif karena biaya pelaksanaan lebih kecil dari rencana, sehingga ada keuntungan sebesar Rp.72,396,667.04 untuk 100 unit rumah. Sedangkan dengan menggunakan material cetak pelaksanaan lebih cepat 8 hari dari pada waktu rencana yaitu sebanyak 64 hari untuk 100 unit rumah, sedangkan kinerja dari segi biaya yang dianalisa dengan earned value concept dapat dinilai efektif dengan keuntungan sebesar Rp.125,139,788.80 untuk 100 unit rumah.Kata Kunci : Rumah Sejahtera Tapak, Material Konvensional, Material Cetak
Checklist of flora along tourist trails to Mt. Lamongan, East Java (Indonesia): misconception of restoration and ecotourism programs in mountain region? Luchman Hakim; Brian Rahardi; Arief Rachmansyah
Journal of Degraded and Mining Lands Management Vol 5, No 3 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.227 KB) | DOI: 10.15243/jdmlm.2018.053.1299

Abstract

The aim of this research was to evaluate the diversity of plant species along the tourist trails to Mt. Lamongan and combat any misconceptions about ecosystem restoration and the ecotourism development program in Mt. Lamongan. A floristic survey was done through flora identification along the hiking trail from the gate of Mt. Lamongan nature recreation area in Papringan Village to the slopes of Mt. Lamongan. The identified species were listed and their taxonomic status analyzed using information from the GRIN website. This study found that exotic plant species are abundant along the tourist tract. Human activities were identified as contributing to the introduction and establishment of exotic plant species. Result of the research indicate that restoration knowledge and techniques do not exist in the Mt. Lamongan region. A comprehensive evaluation of flora should be implemented to enhance the restoration program and protect forest area, especially the tourist corridor to the peak of Mt. Lamongan. Integrated actions to enhance restoration and promote tourism are needed. It encompasses strengthening the restoration concept and technology, eradication of exotic plant species, and establishing a proper tourism interpretive tract.
Groundwater Balance Approach as Basic Planning for Sustainability of Settlement Development Deddy Sugianto; Arief Rachmansyah; Rita Parmawati
The Indonesian Green Technology Journal Vol 8, No 2 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Demands for environmental protection, especially water resources and in development planning, have shown an increase in recent years. However, the reference for protection of water resources has always been based on the level of pollution or changes in water quality. This paper discusses groundwater balance as an approach for housing development planning. This approach assumes that all water needs for residents in a settlement area and their activities are met from groundwater, and the used groundwater must be replaced by water absorption into the soil in the area. For this reason, comprehensive rainwater management is needed. The potential for rainwater in residential areas requires greater management efforts; in addition to controlling the runoff that occurs, the use of clean water is also necessary. The results of runoff analysis for housing in downstream and upstream areas showed a potential for runoff of approximately 105-115% from before the construction of housing until after it has been inhabited. Rainwater management by using infiltration wells as large as 0.82 m3/m2 and water balance of 13.3% is less effective in downstream areas with shallow groundwater levels, but more effective in reservoirs and for seepage of runoff water using a catchment pool of 28.26% or 1.74 m3/m2.Meanwhile, for housing in upstream areas with a low permeability coefficient, the infiltration pond is less effective for water infiltration into the soil by 0.032 m3/m2 or 0.0054%, with a higher level of groundwater than in the downstream housing areas, which can use more effective infiltration wells. Overall, the management of rainwater for clean water and drinking water has sufficient discharge and the quality of the pH of rainwater from the roofs of houses is still feasible, between 6.6 and 7.8. The perspective of people on the use of rainwater as clean water and drinking water is quite positive, at approximately 59-61%.Keywords: Groundwater balance, rainwater harvest, sustainable settlement
Analysis of Carrying Capacity of Water Resources Due to Land Change (Batu and Junrejo Districk) Halimah Rahman; Zaenal Kusuma; Arief Rachmansyah
The Indonesian Green Technology Journal Vol 7, No 3 (2018)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Natural resource management is one of the primary needs of all living things, both for consumption and supporting other activities. Batu City, East Java Province, is a tourist area and a water catchment area that has the potential to be a source of ground water. However, the development of infrastructure as a espoused of tourist areas need serious undermining of the sustainability of the land water source. In 2001 the environmental carrying capacity ratio was 1.75 with a conditional safe status. In 2011 and 2015 the status of environmental carrying capacity has been exceeded with a ratio of 0.85 and 0.62. In 2017 there is a conditional safe status with an environmental carrying capacity ratio of 1.24.Keywords: Demand Water Resources, Ratio of carrying capacity, Supply water resources,
Pemodelan Dinamis Kebutuhan Ruang Terbuka Hijau Kota Malang Muhammad Rizky Pratama; Arief Rachmansyah; Fadly Usman
The Indonesian Green Technology Journal Vol 5, No 1 (2016)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1801.307 KB)

Abstract

Saat ini proporsi ruang terbuka hijau (RTH) semakin berkurang seiring peningkatan populasi dan kepadatan. Dalam pemenuhan pembangunan kawasan-kawasan pendukung sebagai akibat jumlah penduduk yang terus meningkat, alih fungsi lahan di Kota Malang tidak dapat dihindari. Undang-undang Nomor 26 Tahun 2007 Tentang Penataan Ruang menyebutkan bahwa proporsi RTH  minimal 30% dari luas kota.  Namun proporsi kebutuhan RTH suatu kota berbeda dengan kota lainnya. Tujuan penelitian ini adalah mengidentifikasi perubahan luasan RTH tahun 2000 hingga 2015 serta menghitung dan memodelkan luas RTH  yang dibutuhkan Kota Malang kedepannya secara dinamis untuk dapat mencukupi kebutuhan berdasarkan standar beraktivitas dan kebutuhan oksigen. Metode analisis yang digunakan untuk mengetahui perubahan RTH menggunakan peta hasil interpretasi citra satelit yang di overlay sehingga diketahui perubahan luasan RTH dan pengembangan model proyeksi kebutuhan RTH dilakukan dengan menggunakan pendekatan sistem dinamik. Temuan dari pembahasan menunjukan bahwa luas RTH Kota Malang dari tahun 2000 hingga 2015 terus mengalami penurunan  hingga 30% dan kebutuhan akan RTH terus meningkat setiap tahunnya berbanding lurus dengan penambahan jumlah penduduk sedangkan ketersediaan RTH terus berkurang. Skenario untuk memenuhi kebutuhan RTH Kota Malang dengan menekan laju imigrasi, menekan tingkat kelahiran, menekan pertumbuhan kawasan terbangun, pengurangan jumlah sepeda motor dan mobil, penambahan RTH privat dan publikKata Kunci: Kebutuhan Oksigen, Ruang Terbuka Hijau (RTH), Standar Beraktivitas
Adaptive Capacity of Brantas Watershed in Malang City Fancing of the Climate Change Impact Dwi Prihanto; Arief Rachmansyah; Harsuko Riniwati
Indonesian Journal of Environment and Sustainable Development Vol 10, No 1 (2019)
Publisher : Graduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2019.010.01.05

Abstract

The impact on global warming is the occurrence of climate change that affect the condition of watershed ecosystem (DAS). This condition causes a decline in the level of community welfare and increases the level of community vulnerability. Furthermore, these ecological changes may have an effect on the adaptive capacity of community living in the watershed area. This paper raised the issue of climate change that occurred in the Brantas watershed society of Malang city. Adaptive capacity has an important role in addressing and minimizing vulnerability in an area. This study aims to analyze the level of adaptive  capacity community  on climate change. This type of research is classified as a quantitative descriptive where data acquisition and processing are derived from secondary data of regional device organization classified into several parameters and indicators then processed using weighted scale and displayed in spatial maps. This paper shows that the phenomenon of climate change has been significantly felt by the people living in the Brantas watershed. Nevertheless, these symptoms have not been considered a significant problem by the community. This is influenced by limited knowledge of the symptoms of climate change. Other findings show that adaptive capacity is not only determined by environmental conditions. The social structure of both patron-client and institutional relationships at the village level is very influential on the adaptive capacity of the Brantas watershed of Malang city.Keywords: Adaptive capacity, Brantas watershed, Climate change, Malang city, GIS, Social structur
Water Carrying Capacity Approach in Spatial Planning: Case Study at Malang Area Arief Riyadi; Arief Rachmansyah; Bagyo Yanuwiadi
Indonesian Journal of Environment and Sustainable Development Vol 9, No 1 (2018)
Publisher : Graduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1218.243 KB) | DOI: 10.21776/ub.jpal.2018.009.01.08

Abstract

The Law of the Republic of Indonesia Number 32 of 2009 and 26 of 2007 affirms that need environmental carrying capacity in preparation of regional spatial plans. The Great Malang bypassed 12 sub-watershed which is 4 of them pass 3 regency / city directly. Therefore, it needs an integrated spatial arrangement between the three regions. The purpose of this research is to formulate study of water carrying capacity (WCC) and recommendation for input in spatial planning in Malang area. The results of the water carrying capacity study show that Metro and the Bango Sub-watershed is very worrying because its critical condition has been exceeded before 2015. While the Amprong and Manten sub-waters are still safe until 2030.Key word: Amprong, Bango, Manten, Metro, Sub-watershed, Water carrying capacity
Analysis of Infiltration Well Dimensional in Kedungkandang District, Malang City, Indonesia Azarine Nabila Jifa; Arief Rachmansyah; Aminudin Afandhi
Indonesian Journal of Environment and Sustainable Development Vol 9, No 1 (2018)
Publisher : Graduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1047.693 KB) | DOI: 10.21776/ub.jpal.2018.009.01.06

Abstract

Kedungkandang District is one of the fastest growing areas in Malang City and become a urban area. The implication this development is dcreasing of urban open space area by 1 - 2% per year, and followed by increased surface flow during rain. Infiltration well is one of the efficient rainwater utilization to reduce run-off. In Kedungkandang district three are different soil types which affects the permeability coefficient value for determination the dimension of infiltration well. This study aimed to determine the dimension of infiltration wells suitable for application individual infiltration wells for housing type 36, 45, 54, 70, 90 and 110.  In order to determine dimension of infiltration wells would be used, there were some analysis done: hydrology and soil permeability coefficient. The conclusion from this research was the bigger the house size, it would need a bigger dimension of infiltration well as well. From the three types of soil in Kedungkandang, the houses in alluvial fan ground type and tuff volcanic soil require a smaller size of infiltration wells than the houses located in Buring volcano mountain sediments.Key words: infiltration well, run-off 
AN ANALYSIS OF CRITICAL SLOPES STABILITY IN BENDOSARI VILLAGE, PUJON, MALANG DUE TO THE EFFECT OF RAINWATER INFILTRATION Nindia Rizky Ismawan; Eko Andi Suryo; Arief Rachmansyah
Rekayasa Sipil Vol. 16 No. 1 (2022): Rekayasa Sipil Vol.16. No.1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2022.016.01.7

Abstract

A disaster is an incident which threatens and disrupts life. This research was purposed to determine the critical slope stability in Bendosari Village, Pujon due to rainwater infiltration. This research was conducted through ground laboratory test to investigate the type and characteristic of the soil, which then followed by testing of the geo-electric and topography to investigate the existing condition and the ground water level on the critical slopes and analyzed safety factor (SF) using SLOPE/ W for slope with rainwater infiltration effect. The analysis results proved that rainwater infiltration in both conditions could reduce the SF (Safety Factor) value. This is because the water content in the soil increased the pore water pressure. In addition, high water content in the soil reduced the soil shear strength
Evaluasi Kinerja Perbaikan Tanah Lunak Dengan Menggunakan Preloading dan Prefabricated Vertical Drain (PVD) Zahra Febrina Lilabsari; As'ad Munawir; Yulvi Zaika; Arief Rachmansyah
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.6

Abstract

The settlement of soil consolidation is geotechnical problem which is often found in soft soil accumulation. It is therefore, Preloading and Prefabricated Vertical Drain techniques are used to accelerate consolidational settlement. The problem which often appeared in using Preloading and Prefabricated Vertical Drain (PVD) is the failure of design. It causes the consolidationtime cannot run in accordance with the planning. In order to have soil improvemet method which has high effectiveness it is necessary to evaluate the use of geotechnical instruments. In this study, the evaluation covers 3 (three) geotechnical instruments, where Settlement Plate is used to evaluate theoretical settlement, to calculate final settlement prediction with Asaoka observation method and consolidation degree in the field. Consolidation degree also can be evaluated using Pneumatic Piezometer instrument. The inclinometer is used to evaluated the stability of embankment. The failure of design in using Preloading and Prefabricated Vertical Drain (PVD) can be accured because of the mistake of planner in determaining soil design parameters, therefore this study also discusses soil design parameters in actual condition using back analysis method. The results obtained in this study are comparison of actual and theoretical settlement on average of 0.862. To predict final settlement it can be obtained the value 2191,08 mm with the rest of settlement which will be accured about 100 – 450 mm. In this study the actual consolidation degree from Piezometer reading is 85,36% and Settlement Plate reading is 88,42% with the difference of 3,06%. From Inclinometer reading lateral shift which is accured below the soil there is no land slide so that the embankment which is used remains safe The result of back analysis method is Ch value where the new Ch value is 1,914Cv.