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Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan
Published by Universitas Islam Lamongan
ISSN : 25032399     EISSN : 26207222     DOI : https://doi.org/10.30736/cvl
Core Subject :
Jurnal Penelitian Teknik Sipil UNISLA (ISSN2503-2399) adalah jurnal ilmiah yang bertujuan untuk mengkomunikasikan hasil dan riset teknologi dalam rangka untuk pengembangan teknologi di bidang teknik sipil. Sasaran pembaca adalah para ilmuwan, akademis, serta praktisi dari bidang teknik sipil sebagai berikut: Rekayasa Struktural, Teknik Geotek, Rekayasa Sumberdaya Hidrolik dan Air, Rekayasa Transportasi, dan Manajemen Konstruksi.
Arjuna Subject : -
Articles 167 Documents
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Optimization Balongganggang Reservoir Capacity for Irrigation Nastasia Margini; Asyraf Kamilul Basyar
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1184

Abstract

Indonesian agriculture is the largest economic contributor after the non-oil and gas industry. However, ensuring stability in agriculture poses a significant challenge, as indicated by BPS data in 2020 and 2022, showing a decrease in the rice sector in crop area and productivity value by 2.3%. Therefore, this research aimed to increase agricultural output by optimizing planting patterns and reservoirs in Balongganggang Irrigation Area and Reservoir, Sukodadi District, Lamongan Regency, East Java. Optimization of planting patterns was carried out using rainfall and climatology data from 2013 – 2022, with a linear programming method, facilitated by POM-QM for Windows V5 program. The process of optimization focused on two objectives, namely considering maximum land area and maximizing profit. According to the analysis, optimization based on land area and profit provided the same optimal value, leading to a 9.98% increase in planting intensity from 120.57% to 130.55%, with a profit of Rp 33,967,000,000.00.
Compressive Strength Of Concrete The Time Setting Of Application Of Plastiment® P-121 Additive Mixture Alfina Maysyurah; Achmad Rusdi; Albert Didik Setyo Purwantoro
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1185

Abstract

Infrastructure growth requires large quantities of concrete, a problem of concern distance between the batching plant and location of different casting locations, the process mixing and transporting to casting location requires time that can exceed the cement setting time. Plastiment helps improve the strength, durability and general quality of concrete. This research aims to determine the compressive strength of concrete at setting times of 60, 90 and 120 minutes using 150 mm x 300 mm specimens with variations in addition of plastiment of 0.20% and 0.40% of the cement weight. Primary data the form of material testing data and concrete compressive strength for each variation and secondary data is in the form of additives and the properties of cement used. The test results show that the compressive strength of concrete at 60, 90 and 120 minutes by adding Plastiment® P-121R at a variation of 0.20% is 17.55, 18.12 and 18.85 MPa while giving a dose of 0.40% is 17 .27, 19.82 and 22.08 MPa. Addition of plaster can meet the slump value requirements at each time variation and in contrast to normal concrete the slump value is not met at each time variation with the concrete having dried during mixing.
Hydrological and Hydraulic Modelling of Sekolo River Diversion for Coal Mining Activities Wahyu Gendam Prakoso; Dinta Anindy Ismiralda
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1186

Abstract

A Hydrological and hydraulic modeling of the proposed diversion of the Sekolo River for coal mining purposes will provide an overview and technical information on the proposed river realignment and identify potential impacts on the use of the Sekolo River. It is being carried out for River extension to maintain river sustainability and functionality. Sekolo River watershed modeling utilizes a combination of hydrological analysis and open-channel hydraulic modeling using HEC-HMS and HEC-RAS software. To meet the area criterion (volume), the dimensions of the diversion channel are planned with B = 15 m.  H = 1.5 m; m = 1.5; L = 1253 m. These dimensions make the volume of the diversion approximately the same as the existing river. Hydraulic simulation results showed that the flood level would not rise downstream of the diversion channel. The upstream (Q25) peak flow rate is 41.90 m3/s, while the downstream peak flow rate after diversion is increased by 0.02% compared to the existing flow rate. After introducing the diversion channel, the difference in flood peak arrival time (Tp) will be 3 minutes earlier than before the diversion.
The Effect of Low Impact Development Implementing on Flood Discharge of Outflow Drainage in the Lakarsantri District Surabaya City Habibur Rohman; Umboro Lasminto; Yang Ratri Savitri
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1187

Abstract

The drainage system in Lakarsantri District, Surabaya, applies a conventional drainage system which only focuses on water quantity. This is shown by flood events that occur in the area and downstream of the channel. A new paradigm in the management of drainage systems is a low impact development concept that focuses on conservation efforts and the use of natural features to carry out small-scale engineering to control surface runoff of rainwater in watersheds. This research aims to find a good model that can be applied with significant influence. This research was carried out by modeling using the SWMM application with 3 scenarios, scenario 1 Porous Pavement LID, scenario 2 Vegetative Swale LID, scenario 3 50% Porous Pavement + 50% Vegetative Swale LID. The results of the modeling show that scenario 1 has the effect of reducing surface runoff discharge by 0,385 ha-m, which in existing conditions has a surface runoff of 6,574 ha-m and then reducing to 6,189 ha-m with an installation percentage of 2,81% of the total area by ​​the research location.
Analysis of Modernization Readiness of Irrigation in The Downstream Brantas River Basin Under The Authority of The Central Government Monique Adriana Swandani; Mahendra Andiek Maulana; Yang Ratri Savitri
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1188

Abstract

In carrying out the management of the irrigation system has obstacles are inadequate infrastructure conditions caused, the irrigation infrastructure has exhausted its technical age which causes the decline in the performance function of the irrigation network. Government to farmers has not been carried out intensively. In an effort to overcome these obstacles, in addition to the operation, maintenance and rehabilitation required a renewal thoroughly, both institutional, technical, managerial, and human resources. Modernization irrigation is an effort to realize a participant irrigation management system that is oriented toward fulfilling irrigation service levels in an effective, efficient, and sustainable. Limited time, cost and human resources are obstacles in the implementation of irrigation modernization, so an assessment is needed to measure the level of readiness of an irrigation area in carrying out irrigation modernization activities. This result of analyze the readiness of irrigation modernization show that Mrican Kanan area is ready for irrigation modernization with IKMI value 81,69%. Meanwhile DI. Mrican Kiri, DI. Siman, DI. Menturus, DI, Delta Brantas needs maintenance around 1- 2 years. DI. Mrican Kanan can start from the Peterongan Secondary Channel. SI. Pare Peterongan, SI. Tunggorono, SS. Melik dan SS. Sentul.
Unisma Sports Center Building Project Control Analysis Using the Critical Path Method (CPM) Ruli Saefudin; Ade Fitriyanti Ulul Azmi
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1195

Abstract

The purpose of this research is to determine the scheduling activities for the construction of the Sport Center Building at the Islamic University of Malang, to determine and analyze the control of building construction projects managed by the Islamic University of Malang using the CPM (Critical Path Method) method. This research uses the research method used in this research, namely the descriptive method. The data collection techniques used were observation, interviews, and library research. After obtaining information through interviews, data analysis was carried out using the CPM (Critical Path Method) method. The researcher has completed the research and from this analysis, the researcher found that the construction work carried out by the Islamic University of Malang required 180 days of work using the CPM (Critical Path Method) method, so the optimal duration of the project can be accelerated to 33 days so that the initial project duration is 196 days. working days to 163 days with an efficiency of 16,837%
Study on the Optimization of Implementation Time for the Construction of the Baraka Sports Facility Center (APBD PEN) Kab. Enrekang South Sulawesi Fatmawaty Rachim; Mahyuddin; Fitriah; Erdawaty
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 2 (2024): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i2.1206

Abstract

In some projects, there are often delays in the completion of work, especially during construction work. To reduce the occurrence of cost overruns, it is necessary to optimize work time that is more carefully planned so that work delays can be avoided. In the field of construction engineering, the Microsoft Project application is used to manage plans or task times so that an ongoing project can be evaluated according to all stages of tasks in the project. The implementation of the Baraka Sports Facilities Center Development Project in June to July 2022 shows the time or duration of the planned implementation of the roof work for 37 calendar days and after analyzing the data using Microsoft Project, the optimization time is 32 calendar days. For 32 days, by increasing the number of workers, the following adjustments were made to improve efficiency: a. For SCH 20, 4” pipework, 3 welders and 3 additional workers were added; b. For batten work with CNP 150.50.20.2, 3 craftsmen and 3 additional workers were added; c. For bitumen asphalt roof covering work (CTI), 7 workers and 7 handymen were added; d. For bitumen asphalt work, 1 worker and 1 handyman were added.  
Analysis of Concrete Strength Analysis K-250 With Additional Asbestos Waste Powder as a Substitute of Fine Aggregate Ahmad Ridwan; Yosef Cahyo Setianto Poernomo; Edy Garjito; Romadhon
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 1 (2024): MARCH
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i1.1220

Abstract

Concrete is an important component in the manufacture of infrastructure, but in its various advantages, concrete also has deficiencies in the elements of its manufacturing materials, concrete which can cause environmental damage. Not only that, another problem was also found, namely the amount of asbestos waste being wasted. In addition to being difficult to decipher in nature, asbestos also has an impact on human health, namely lung cancer. From there, researchers are interested in conducting research and finding solutions. The purpose of this research is to find out the results of testing the compressive strength of K-250 concrete with the use of asbestos powder waste and to review the use of asbestos powder waste as fine aggregate efficiency.This study uses an experimental method with data analysis to find the results of testing the compressive strength of K-250 concrete. The test will be carried out on 12 specimens with asbestos waste variance of 0%, 10%, 20%, and 30% as a substitute for fine aggregate. From the test results obtained data on the compressive strength of concrete at the age of 28 days, namely: 0% = 217.8 Kg/cm3, 10% = 238.1 Kg/cm3, 20% = 188.7 Kg/cm3, and 30% = 100 ,1 Kg/cm3, which concludes that K-250 concrete with a variance of 10% meets the compressive strength.
Study Planning of Check Dam Using Waste Tires at Sumbersari UB Forest Area Runi Asmaranto; Melvin Al Ishar; Anggara Wiyono Wit Saputra
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 2 (2024): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i2.1224

Abstract

A check dam is a construction solution to overcome various catchment area challenges, especially erosion and sedimentation control in the upstream region. The strategic implementation of this plan includes various methodologies such as topographic, geotechnical identification, hydrological analysis, sedimentation analysis, material specification, hydraulic analysis, stability analysis, storage capacity analysis, and budget plan development. The purpose of this research is to check dam planning using waste tires which includes sediment discharge, detailed dimensions of the building, and building safety, to the required cost budget plan by reviewing the aspects of environmentally friendly, low cost, and waste utilization by sustainable development goals. The type of sediment flow that occurs is debris flow with a sediment discharge rate of 25,939 m3/s, due to the flood discharge phenomenon with a significant 25-year return period is 10,580 m3/s. The safety number of the proposed check dam design using the calculation of forces acting and Plaxis 2D V20 software has exceeded the safety permit requirements with various conditions that may occur at the study site. In a single flood, this check dam can effectively mitigate for approximately 4 days. To implement this development plan, an estimated budget of IDR773.472.940 has been projected.
Effect of Gypsum Waste Stabilization in Clay Soil on California Bearing Ratio Value Muthia Anggraini; Yustinus Sitorus; Widya Apriani
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 2 (2024): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i2.1227

Abstract

The problem that occurs in road construction is the low CBR value of the subgrade. Advances in stabilization technology for soil improvement by mixing clay with a mixture of gypsum powder which has elements of the compound Calcium Oxide (Cao), Potassium (Ca), Water (H₂O), Hydrogen (H), and Sulfur (S), so it is necessary to conduct further research and testing in the laboratory with the aim of obtaining the California bearing ratio value on variations in gypsum powder mixing. The research method used is an experimental method in the laboratory with reference to the 2018 Bina Marga General Specifications. With mixing variations of 5%, 10%, 15% and 20% gypsum waste. The soil used in this research was taken from Jalan Badak area, Sail, Tenayan Raya sub-district, Pekanbaru City, Riau which was then tested in the laboratory by testing the specific gravity, soil density and california bearing ratio. The results of laboratory testing, it can be concluded that the addition of 5%, 10%, 15% and 20% gypsum has increased the CBR value, namely with a CBR value of 1.70% to 12.50%. The CBR value has met the Binamarga specification, 2018 which is 6%. So from the results of the equation obtained, it shows a positive relationship, namely the optimum moisture content (OMC) value increases with the increase in the California Bearing Ratio (CBR) value.

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