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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Jurnal Pengabdian Masyarakat Indonesia Seminar Nasional Insinyur Profesional (SNIP) Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Journal of People, Forest And Environment
Lusmeilia Afriani
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences Other

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ANALISIS PENGARUH PENAMBAHAN ZAT ADDITIVE ISS 2500 TERHADAP KUAT TEKAN BATU BATA DENGAN DAN TANPA PROSES PEMBAKARAN Aria Febriantama; Lusmeilia Afriani; Setyanto Setyanto
Jurnal Rekayasa Sipil dan Desain Vol 4, No 1 (2016): Edisi Maret 2016
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Abstract

Brick is a material t h a t made of clay. Bricks were made with or without additional mixturel throughsome processes and stages. I n t his study used the clay with additional mixture 2500 ISS ( Ionic SoilStabilizer ) which has variety levels mixture of 0,9 ml, 1,2 ml , 1,5 ml and 2,1 ml with the intention to improvethe quality of brick. It is necessary to do the research , so this study can be compared with SNI standards.The tested samples in this study are clay that comes from jl . Nunyai , Rajabasa . It sample was curing for 7day and then, the samples will be done with or without burning process.Based on the results of physical testing the samples, USCS classify soil samples as clay with low plasticityand belongs to the ML group . After doing research of compressive strength testing of with and withoutburning process from four levels generating the compressive strength maximum average at a level of 2.1 mlboth of them. With value 21,24 kg / cm 2 for burning process and 4.25 kg / cm 2 for without burning process.Which is both of those treatments are not included into 25 classes based on tables strength of compressedbricks ( SNI 1991 ).Keywords: brick, clay, iss 2500 (ionic soil stabilizer), compressive strength.
Studi Analisis Daya Dukung Tanah Lempung Berplastisitas Tinggi yang Dicampur Zeolit Rian Alfian; Lusmeilia Afriani; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 3, No 2 (2015): Edisi Juni 2015
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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
Analisa Kelongsorang Lereng Akibat Dari Peningkatan Kadar Air YangTinggi Muhamad Rizki Rinaldi; Lusmeilia Afriani; Yohanes Martono Hadi
Jurnal Rekayasa Sipil dan Desain Vol 8, No 3 (2020): Edisi September 2020
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Abstract

The level of slope safety is influenced by several factors. Such as slope conditions with largeloads, steep slopes and heavy rain conditions. This often results in landslides around the TransSumatra toll road, Pematang Panggang. So that around the slopes reinforcement is needed so thatthe slopes are more stable.Based on the results of laboratory tests and research in the field, the results of the calculation ofthe slope safety value program with a 30% saturation degree condition, the safe factor value is1.2946, the degree of saturation 40%, the safe factor value is 1.2881 and the degree of saturationis 60%, the safety factor value is equal to 1,2761. Because the lowest safe factor value is at 60%saturation degree, slope stability is handled at 60% saturation degree, which is strengthened bythe cutting method on the slope body and using sheet pile to get slope reinforcement. Two methodsof handling slope stability were carried out. From the comparison of slope stability handling with60% degree of saturation, the safe slope conditions are in handling one because there is nosubsidence and soil displacement to the free slope area.
Simulasi Penggunaan Program Geostudio Slope/W 2007 dalam Menganalisis Stabilitas Lereng Dengan Jenis Tanah Lempung Berpasir pada Kondisi Tidak Jenuh, Kondisi Jenuh Sebagian, dan Kondisi Jenuh yota pentawan; Lusmeilia Afriani; Amril Ma'ruf Siregar
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Abstract

Landslide is a natural disaster that often occurs in Lampung Province, particularly in WestLampung regency. The sliding occurs due to an increase in soil pore water stress in the rainyseason. Based on the research on the slopes, there is a safety factor value that can be used as areference for the degree of slope stability. One method to analyze the value of slope safety factoris by using the Geostudio Slope / W 2007 program.In this study, some cross sections of slope were simulated with 4 different water table conditions.The required soil properties index are: cohesion, c; natural angle of repose, φ; and unit weight ofdensity, γ .The analysis result shows that slope transversal cut shape have influence on slope stability. Theanalysis results on slopes with saturated conditions have a safety factor value of <1.25 and areclassified on unsafe slopes. In the unsaturated condition the whole simulation is classified as astable slope with a safety factor value> 1.25. Based on the analysis result, it can be inferred thatthe slope has insecured status. Thus, it is suggested to conduct such actions in order to preventlandslide.Key words : soil, slope stability, safety factor, geostudio slope/w.
Pengaruh Waktu Pemeraman Terhadap Daya Dukung Tanah Lempung Dan Lanau Yang Distabilisasi Dengan Menggunakan Kapur Pada Kondisi Rendaman (Soaked CBR) Fransiskus Afrie; Lusmeilia Afriani; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 5, No 4 (2017): Edisi Desember 2017
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ABSTRACTThe soil layer is the bottom layer that has function to forward the load from construction on it. But not always the basic soil layer is able has function properly as the bearing capacity. The soil stabilization method with lime additive is an alternative that can be used in planning on a unstable soil construction. The aim of this research is to know the physical characters of clay soil in Sidodadi Asri area, Jati Agung subdistrict, South Lampung regency and the type of silt soil in Yosomulyo area, East Metro District, Metro City. And also to know the increase of the bearing capacity of both types of soil with variation of curing time of 7, 14 and 28 days. From the result of the physical character research and mechanical of original soil samples obtained so it can be concluded that land taken from Sidodadi Asri village classified as clay with high plasticity, while the soil from yosomulyo village is clay with low plasticity. And on the CBR test in the ideal soaking conditions with ideal lime content showed that the increase of CBR value in each soil type along with the increase of the curing duration of 2.8%, 4%, 6.4% and 10.2% in clay and 2, 2%, 3%, 3.6% and 6% in silt soils. This suggests that the ideal lime composite in addition to the curing duration gives a positive effect to increase bearing capacity soil or CBR value. Keywords: Lime, Stabilization, Clay and Silt Soil, Soaked CBR. 
Pengaruh Jumlah Lapisan Tanah Terhadap Derajat Kepadatan Tanah Berdasarkan Metode Tekanan Annisa Tiara Rulya; Idharmahadi Adha; Lusmeilia Afriani
Jurnal Rekayasa Sipil dan Desain Vol 6, No 1 (2018): Edisi Maret 2018
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Pemadatan tanah merupakan salah satu pekerjaan penting dalam setiap proyek konstruksi, tanggul, waduk dan konstruksi sipil lainnya, tanah yang belum padat atau masih kondisi gembur harus dipadatkan untuk meningkatkan untuk meningkatkan kekuatan tanah, sehingga dengan demikian meningkatkan daya dukung pondasi di atasnya, serta juga berfungsi untuk mengurangi besarnya penurunan tanah yang tidak diinginkan. Untuk itu, dalam penelitian ini akan dilakukan pemadatan tanah dengan menggunakan metode standard proctor di laboratorium dan menggunakan pemodelan alat uji tekan pemadat modifikasi untuk mengetahui pengaruh jumlah lapisan terhadap derajat kepadatan tanah. Tanah yang digunakan berasal dari Tirtayasa, Bandar Lampung. Pengujian proctor menggunakan beberapa lapisan yaitu lapisan 2, 3, 4, dan 5. Sedangkan alat tekan pemadat modifikasi menggunakan tekanan 5 MPa, 10 MPa, 15 MPa. Lapisan yang digunakan yaitu lapisan 2, 4, dan 6 pada setiap tekanan. Hasil penelitian menunjukkan bahwa berat volume maksimum (γdmaks) sebesar 1,49 gr/cm3 pada pengujian metode standard proctor dengan hasil pada alat tekan pemadat modifikasi didapat nilai (γdmaks) sebesar 1,66 gr/cm3.
Analysis of Slope Stability and Handling Methods on the Sand Clay (In Case : Sta 208+00 Double Track Train Martapura – Baturaja) Fadli Imran; Lusmeilia Afriani; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 8, No 1 (2020): Edisi Maret 2020
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Abstract

There are several factors that effect the level security of a slope. Such as the condition of a slope with large loads, steep slope and heavy rain condition. The landslide and slope would often occurs on some double track lines on Martapura – Baturaja train because of this things. Therefor, the reinforcement is needed so that the slope is more stable around the slope. The results of physical and mechanical properties of the soil are based on the results of laboratory tests and research in the field. so the PLAXIS program was used in analyzing the stability of the existing slope based on the data. From the results of the program calculation shows that the condition of the slope is not stable. because the safety value indicates 0,89 for saturated conditions and 0,67 for dry conditions and 0,91 for partially saturated conditions. Furthermore, slope stability analysis who was reinforced by a combination of soil retaining wall and borepile. there has been an increase in safety value of 1,30 for saturated conditions, 1,66 for dry conditions and 1,65 for partially saturated conditions. This shows that the slope is stable and the reinforcement design is safe and able to withstand landslides. Keywords : Analysis of Slope On Sandy Clay
ANALYSIS STUDY SETTLEMENT IN CLAY OF SOFT AND CLAY OF ORGANIC USE MODELING BOX AND MATRASS CONCRETE BENDRAT WITH A POLE yusuf sukamto; Lusmeilia Afriani; idarmahadi adha
Jurnal Rekayasa Sipil dan Desain Vol 5, No 1 (2017): Edisi Maret 2017
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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  .
Pengaruh Fraksi Lempung Terhadap Nilai Kohesi dan Indeks Plastisitas Renold Pangidoan Rambe; Lusmeilia Afriani; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 4, No 2 (2016): Edisi Juni 2016
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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 Variasi Waktu Pemeraman Terhadap Nilai Uji Kuat Tekan Bebas pada Tanah Lempung dan Lanau yang Distabilisasi Menggunakan Kapur pada Kondisi Optimum Abdil Hafizh Arrofiq; Lusmeilia Afriani; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 4, No 3 (2016): Edisi September 2016
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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.
Co-Authors 2016_Monica destia Abdil Hafizh Arrofiq Ahmad Zakaria Amril Ma&#039;ruf Siregar Amril Ma`ruf Siregar Annisa Tiara Rulya Aria Febriantama Aulia R Sudarman Bainah Sari Dewi Chintia Makki Datra Peta Saputra Dedi . Dikpride Despa Fadli Imran Fajar Destri Atmoko Fransiskus Afrie Gde Satya Yudha Tama Habibi Nur Arifin Hany Octavia Anggraini Hedi Saputra idarmahadi adha Idharmahadi Adha Ikratul Herman Irza Sukmana Iswan Iswan Ivan Sukastian karina apriliani puspa zulmi M. Iqbal Hermawan Mohammad Yogi Alnasir Monica destia muhamad rizki rinaldi Muhammad Malik Purnama Muhammad Wahyuddin mutia andriani Nawawi Nawawi Novita Nurdiana Ofik Taupik Purwadi oktario eko hidayat Renold Pangidoan Rambe Rian Alfian Rizki Dwi Putra Ryzal Perdana Setyanto Setyanto Sugeng p Harianto Syahreza Nurdian Yan Juansyah Yohanes Martono Hadi yota pentawan yusuf sukamto