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All Journal Jurnal technoscientia Jurnal Rekayasa Sipil dan Desain Briliant: Jurnal Riset dan Konseptual Teras Jurnal Civil and Environmental Science Journal (CIVENSE) JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Profesi Insinyur Universitas Lampung Seminar Nasional Insinyur Profesional (SNIP) JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat) Jurnal Teknologi dan Inovasi Industri Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Nemui Nyimah Jurnal Sinergi
Lusmeilia Afriani
Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Desain Dan Eksperimentasi Perancangan Sumur Resapan Air Hujan Berdasarkan Hasil Uji Permeabilitas Lapangan Rifai, Akbar Prima; Setyanto, Setyanto; Afriani, Lusmeilia
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.354

Abstract

Due to the development of housing in Bandar Lampung so rapidly, its specialty in Housing Bhayangkara, Village Beringin Jaya, District Kemiling. The process of absorption of water into the ground is not going well. Runoff rainwater that falls directly flowing into the drainage channel. Infiltration wells serves as a temporary rainwater that falls on the roof of the house, then the rain water will be absorbed by the soil. In this study determines the permeability coefficient values obtained by means of modified with different diameters, which will then be compared and a determination made as catchment wells. Based on the examination of the physical properties of the original soil, using samples that have been tested in this study, soil samples can be classified in the group of argillaceous soil, while USCS soil samples classified as clay and included in the CL group The results of the analysis and calculations performed, the permeability coefficient obtained for the field test tool diameter 2 ", 3" and 4 "as well as the permeability coefficient in laboratory research. The permeability coefficient used to calculate the amount of recharge wells that efsien. Keywords: clay, permeability, infiltration well
Pengaruh Fraksi Lempung Terhadap Nilai Kohesi dan Indeks Plastisitas Rambe, Renold Pangidoan; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 2 (2016): Edisi Juni 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i2.367

Abstract

This study aims to see the influence the fraction of clay in the sand by comparing parameters ofstrong shear soil that is resulted from unsoaked and soaked conditions of Direct Shear Test andAtterberg Limit. An increase in the fraction of clay in the sand can change the physical propertiesof the soil and the mechanical properties. An increase in the fraction of clay can also improve thevalue soil cohesion and ground plasticity index but it reduces the value soil friction. Theparameter change magnitude is analyzed by looking at the results of correlation analysis ofcohesion of the soil plasticity index, and some of the physical parameters of the soil. Thecorrelation between the shear test directly with the plasticity index against the physical propertiesof soil clays that linear regression obtained a very strong correlation (0.8 – 1) and limit land thatis used are sand which is already substituted by clays from 0% – 50%.Direct shear test which results from the condition of unsoaked conducted in the laboratoryobtained that addition levels of clay showed an increase in the value of cohesion but the angleshear declined. Direct shear test results from the condition of soaked (soaking 4 days) obtained adecrease of the value of cohesion (c) down and slide angle (φ) which is also affected by soakingthe soil. The test results show the Atterberg limits that a percentage of the original soil andaddition of clays to 20% has no plasticity index value. This is because the ground is still are off(loose soil). As for the addition of clays from the percentage of 30%, 40%, and 50% of the land isincluded soil cohesive and value each PI is 8.87%, 17.7%, and 12.04%.Keywords: direct shear, cohesion, plasticity index
Pengaruh Subtitusi Pasir Pada Tanah Organik Terhadap Kuat Tekan dan Kuat Geser Putra, Rizki Dwi; Iswan, Iswan; Afriani, Lusmeilia
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 2 (2016): Edisi Juni 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i2.380

Abstract

Physical properties of organic soils have a very high water content and low carrying capacity.One method to increase the carrying capacity of the soil is by adding or mixing with materials thathave a high carrying capacity. By adding sand on the sample in this study is expected to increasethe carrying capacity of organic soils of compressive strength and strong shear. The study wasconducted in the laboratory of Soil Mechanics Faculty of Engineering, University of Lampung, bymaking a sample of the results of compaction standard, then the samples are given the addition ofsand to the percentage increments of 5%, 10%, 15%, and 20% for the comparison of thecompressive strength (qu), shear angle (φ), and the value of cohesion (c) after the addition ofsand.Results of testing the compressive strength and shear strength showed soil behavior in a state ofthe sample with the addition of sand up to 20% has an increased qu and φ, but a decline in thevalue of soil cohesion. The more increasing mix of sand in the soil samples, the values ofcohesion / coherence on the ground will be more decreased, but the sand has good gradation andstrong grain will be able to withstand the load that works vertically or horizontally.Keywords: Organic Soil, Compressive strength and Shear strength, Friction Angle, and Cohesion.
Korelasi antara Kuat Tekan Bebas dengan Kuat Tekan Geser langsung pada Tanah Lanau Disubstitusi dengan Pasir Sudarman, Aulia R; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 2 (2016): Edisi Juni 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i2.384

Abstract

This study aims to get the correlation between the soil compressive strength and soil shearstrength directly on silt substituted with granulated materials. This is done because if buildingstructures on the silt soil will cause several problems including a small value of the compressivestrength and low shear strength after incurring. For the testing is done with a mixture of sand, siltsoil so that it can be seen how much sand mixture to resist the forces on the load that is above theground.To determine the sand effect on silt soil , with the compressive strength and shear strength that hasbeen made by way of mixing the sand by 10%, 20%, 30% and 40%. From the test results showedan increase in the compressive strength of 0.3723 kg/cm 2 in a mixture of 10% sand and a decreasein the mixture thereafter. In the direct shear strength value increased 30% when variations mixtureof sand that is equal to 0.4290 kg / cm 2 , the cohesion of 0.27 kg / cm 2 and the friction angle in at26.170.Keywords: silt soil, sand, soil compressive strength, soil direct shear
Pengaruh Variasi Waktu Pemeraman Terhadap Nilai Uji Kuat Tekan Bebas pada Tanah Lempung dan Lanau yang Distabilisasi Menggunakan Kapur pada Kondisi Optimum Hafizh Arrofiq, Abdil; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.427

Abstract

In this study used raw material such as silt and clay soil with a mixture of lime additive which has a variety of levels of 5%, 10%, and 15% as well as with a variety of curing time for 7 days, 14 days and 28 days.The purpose of this study to increase the compressive strength of silt and clay soil free them. Soil samples tested in this study represents silt soil from the village Yosomulyo, East Metro District, Metro City, while the clay is derived from Rawa Sragi, Jabung District, East Lampung regency.After doing research, from the third level, the compressive strength maximum free of silt and clay soil found in the levels of 15% with 28 days curing time. This is due to the greater levels of lime and the longer the curing time, the greater the unconfined compression value.Keywords: Clay Soil, Silt Soil, Unconfined Compression, lime.
Korelasi Kuat Tekan Bebas dengan Kuat Geser Langsung pada Tanah Lempung yang dicampur dengan Zeolit Hermawan, M. Iqbal; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.430

Abstract

This research was conducted to determine the effect between zeolite and clay of compressivestrength and shear strength. Construction founded on clay will cause some impact, such as lack ofcompressive strength and shear strength. Therefore, before the construction of structures on theclay, the clay must be stabilized first. In this research, soil stabilization using zeolite.Based on the results of this research there was an increase in the compressive strength of clay by94,5 % from 0,2975 kg/cm 2 be 0,5787 kg/cm 2 , and improving the clay cohesion of 54,17 % from0.24 kg/cm 2 be 0,36 kg/cm 2 , and the increase in the maximum shear strength of 43,89 % of 0.4754kg/cm 2 be 0,6841 kg/cm 2 , the additon of zeolite until 10%. From these values it can be concluded,compressive strength and shear strength increases as a percentage addition of zeolite, althoughthe increase that occurred in the unconfined compressive strength and direct shear strength is notas great.Keywords : Clay, Zeolite, Uncofined Compressive Strenght, Shear Strenght
Studi Analisis Daya Dukung Tanah Lempung Berplastisitas Tinggi yang Dicampur Zeolit Alfian, Rian; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.455

Abstract

C lay has properties that are not profitable for construction. This is because the bearing capacityof the soil or low CBR have low value. Therefore we need a stabilizing agent that can reduce soilproperties which are unprofitable, usually accompanied by binding to each soil grain with theother .The research was done by testing on clay samples without a mixture and the clay that is mixedwith zeolite with a variation of 6%, 8%, 10%, 12% and 14%. Tests were performed using standardand modified compaction which previously done curing for 14 days. After compaction test, thesamples were soaked for 4 days and then followed by mechanical testing which is CBR test thataimed to determine the bearing capacity value of the soil after the sample was mixed by zeolites.Based on the results of laboratory research, the highest value obtained on the sample CBR claywith a mixture of 14% zeolite with the use of modified compaction with 14 days of curingand 4days of soaking in the amount of 2.78%. This is because the effect of zeolite which can bind clayparticles. So, the more a mixture of zeolite then bearing capacity of the soil also increasing.However, the value of CBR in this research can not be used as subgrade in road constructionbecause of its CBR value ≤ 6%.Keywords: CBR, Soil Clay, Zeolite
Studi Dan Analisa Campuran Tanah Lempung Dan Abu Sekam Padi Terhadap Nilai Permeabilitas Dengan Alat Falling Head Setiawan, Dedi; Afriani, Lusmeilia; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 3 (2015): Edisi September 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i3.479

Abstract

Soil permeability value for every construction is different. Such differences affect the strength of acivil construction to be built. Therefore it is necessary to attempt to manipulate the soilpermeability value by adding the additive to a soil permeability values obtained in order to meetthe standard of civil construction to be built. Among the many additives are used as soilstabilization materials, one of them is rice husk ash. Some recent researches in the field of CivilEngineering showed that rice husk ash mixture useful as a particularly clay soil stabilization.Because rice husk ash can fill the cavities that exist between the grains of ground.Soil samples tested in this study is clay derived from Perumahan Bhayangkara, KelurahanBeringin Jaya, Kecamatan Kemiling, Bandar Lampung. Rice husk ash used were obtained fromDusun Dantar, Kecamatan Padang Cermin, Kabupaten Pesawaran. This study was conducted todetermine the effect of rice husk ash to the soil permeability values.The results of analysis and calculations performed in the laboratory obtained averagepermeability value (k) for soil with 5% rice husk ash added, 10% rice husk ash added, and 15%rice husk ash added. The permeability value used to be compared with native soil (clay).Key words: clay, rice husk ash, permeability.
PENGARUH VARIASI WAKTU PEMERAMAN TERHADAP NILAI UJI TEKAN BEBAS PADA TANAH LEMPUNG DAN LANAU YANG DISTABILISASI MENGGUNAKAN SEMEN PADA KONDISI TANPA RENDAMAN (UNSOAKED) andriani, mutia; Setyanto, Setyanto; afriani, Lusmeilia
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 4 (2016): Edisi Desember 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i4.525

Abstract

Pada umumnya, pemeliharaan tanah dengan semen dicampur dengan kadar semen rendah dengan ataupun tanpa kekuatan yang ditargetkan sangat tergantung pada fungsinya. Sementara itu stabilisasi tanah dengan prosentase semen cukup tinggi harus dengan target kekuatan tertentu.Tujuan dilakukannya penelitian ini adalah Mengetahui pengaruh variasi kadar campuran semen dan mencari kadar semen yang ideal dalam pencampuran semen. Sampel tanah yang di uji pada penelitian ini yaitu tanah lempung di daerah Belimbing Sari, Kecamatan Jabung, Kabupaten  Lampung Timur dan jenis tanah lanau di daerah Desa Yosomulyo, Kecamatan Metro Timur, Kota Metro. Alat yang digunakan untuk uji analisis saringan, uji berat jenis, uji kadar air, uji batas-batas atterberg, uji pemadatan, uji kuat tekan bebas dan peralatan lainnya yang ada di Laboratorium Mekanika Tanah Jurusan Teknik Sipil, Fakultas Teknik, Universitas Lampung yang di sesuaikan dengan standar ASTM D-2216. Hasil penelitian yang dilakukan terhadap tanah lempung dengan campuran semen dengan kadar 12% dan waktu pemeraman 28 hari sebesar 0,84kg/cm2. nilai kuat tekan bebas tertinggi dari penelitian yang dilakukan terhadap tanah lanau dengan campuran semen dengan kadar 12% dan waktu pemeraman 28 hari sebesar 1,13 kg/cm2. Maka dapat disimpulkan bahwa semakin banyak kadar semen yang dicampurkan pada tanah lempung dan lanau akan menjadikan nilai tekan kuat bebas tinggi. Disarankan Untuk penelitian selanjutnya disarankan untuk menggunakan persentase campuran antara tanah lempung dan semen serta tanah lanau dan semen yang lebih rinci agar didapat perbandingan yang lebih baik. Kata kunci : Nilai uji tekan bebas, tanah lempung, tanah lanau, semen  
ANALYSIS STUDY SETTLEMENT IN CLAY OF SOFT AND CLAY OF ORGANIC USE MODELING BOX AND MATRASS CONCRETE BENDRAT WITH A POLE sukamto, yusuf; Afriani, Lusmeilia; adha, idarmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 1 (2017): Edisi Maret 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i1.556

Abstract

This research make modeling box test for testing land subsidence and treatment the testing on the ground had  been given bracing of using a concrete mat bendrat with the piling softwood on the organic clay and  soft clay soil. It will were laden starting from 0,2 kg/cm2, 0,3 kg/ cm2, 0,4 kg/cm2, 0,5 kg/cm2. Testing in the physical properties that is water content, specific gravity, sieving, hidrometri, atterberg limits and mechanical testing such as consolidation test and consolidation box test.On the research of testing the physical properties of soil from belmibing sari village is soft clay soil and from Benteng Sari village is organic clay. Based on the result of mechanical testing on consolidating the lab test with test box that the results of the test above state the value of test Cc box test is lower because test  box use bendrat concrete reinforcement mat with a pole softwood, that matter can be concluded that carrying capacity on the clay become more stable because hollow cavities in the soil pore filled with particles interlocking so the ground is being easily compressible if gets pressures from the inflicting, soil degradation that occurs will be reduced. So as to reduce the risk of damage of construction on top of it .Password: soil settlement, organic clay , soft clay  .
Co-Authors Adenora, Novan adha, idarmahadi Adipaty, Arneta Pratiwi Afrie, Fransiskus Ahmad Zakaria Akbar, Aldharin Rizky Aleksander Purba Alnasir, Mohammad Yogi Andius Dasa Putra Andriani, Mutia Anggraini, Hany Octavia Anma Hari Kusuma, Anma Hari Aria Febriantama, Aria Arinal Hamni Ashruri Ashruri, Ashruri Atmoko, Fajar Destri Carissa, Caroline Clara Damris Muhammad Dedi Setiawan DEWI SARTIKA Dikpride Despa DWSBU, Chatarina Niken Fajriyati, Lely Gigih Forda Nama Gusri Akhyar Ibrahim Hafizh Arrofiq, Abdil Harahap, Charles Havis, Muhammad Helvi Yanfika Hermawan, M. Iqbal Hidayat, Oktario Eko Hidayatulloh, Anwar Idharmahadi Adha Ika Kustiani Imran, Fadli Iswan . Iswan Iswan Julianto, Agil Kafi, Muhammad karami, muhammad Kristianto Usman M. Haviz Makki, Chintia Muhammad Wahyuddin, Muhammad Nawawi Nawawi Niswah, hamimatun Nur, Areva Fatiha Nurdian, Syahreza Pahlupi, Belli pentawan, yota Pratomo, Riant Pandu Putra, Rizki Dwi Rahayu Sulistyorini Rambe, Renold Pangidoan Ratna Widyawati Rian Alfian, Rian Rifai, Akbar Prima Rifai, Akbar Prima Rinaldi, Muhamad Rizki Rudy Rudy Rulya, Annisa Tiara Saputra, Datra Peta Setyanto Setyanto Siregar, Amril Ma'ruf Siregar, Amril Ma`ruf Siregar, Amril Ma’ruf Sopilawati, Rahma Subeki Sudarman, Aulia R Sugianto Sugianto sukamto, yusuf Syah, Aminudin Syahruli, Firman Trisya Septiana Vabylita, Maria Fransisca Yohanes Martono Hadi Yuliandari, Puspita zulmi, karina apriliani puspa