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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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Analysis Factor Safety of Slopes With Sandy Loam Soil Types on Conditions Not Saturated, Saturated Conditions and Partially Saturated Conditions Using Computing Program Saputra, Datra Peta; Afriani, Lusmeilia; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1274

Abstract

Natural disasters often occur in hilly areas in Lampung Province, namely landslides. Landslides that occur due to increased pore water pressure. The 2012 GeoStudio SLOPE / W program can analyze slope stability that can be modeled according to the original conditions in the field and can know the value of the safe slope factor. In this study, there were three cross section slopes with three groundwater conditions, namely the condition of the groundwater level at the base of the slope, half the height of the slope and following the maximum height of the cross section of the slope. Land property data needed include : cohesion, shear angle in soil and weight of soil contents. Slope stability is achieved when the retention force is greater than the driving force. The results of the analysis of slope stability show that the condition of the groundwater is very influential on slope stability, can be seen from the results of GeoStudio SLOPE / W 2012 analysis in simulation 1 and simulation 2 safe factor values obtained >1.25 that is  slopes are in safe status, while in simulation 3 the saturated condition has a safe factor <1,25 that is unsafe slopes or landslides, it is recommended to take care to prevent landslides. Key words : soil, slope stability, safety factor, geostudio slope/w 2012
Analysis of Slope Stability and Handling Methods on the Sand Clay (In Case : Sta 208+00 Double Track Train Martapura – Baturaja) Imran, Fadli; Afriani, Lusmeilia; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1281

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
ANALISIS PERMEABILITAS TANAH YANG DIPADATKAN DENGAN MENGGUNAKAN METODA CUBIC PERMEAMETER Alnasir, Mohammad Yogi; Afriani, Lusmeilia; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1287

Abstract

AbstractThe development of infrastructure in Indonesia is increasing in various regions such as the construction of reservoirs, dams and other construction. One of the important things that became the basis of development is foundation ground. Therefore, it is necessary to know the type of soil used and the permeable nature of the soil. Soil permeability illustrates the ability of soil to pass water. In this study to determine the permeability of the soil by using a cubic mold and compare the results of soil permeability obtained from compacted soil using the pressure method and the standard method. Soil samples used were from Pamenang village, Pringsewu. Soil taken is disturbed and undisturbed soil samples. The soil was then compacted by a standard method and with a pressure test method at a pressure of 5 MPa, 10 MPa and 15 MPa. Then the permeability test is carried out to get the permeability coefficient. The results of observations in the laboratory show the greater pressure applied to the soil, the smaller coefficient of permeability. The relationship between the permeability coefficient with standard compaction method and the pressure method get the permeability coefficient value so that the pressure is between 5 to 10 MPa. Keywords: Soil, Compaction, Pressure and Permeability. AbstrakPerkembangan pembangunan infrastruktur di Indonesia sedang meningkat diberbagai daerah seperti pembangunan waduk, embung, bendungan dan konstruksi lainnya. Salah satu hal penting yang menjadi dasar dalam pembangunan adalah pondasi tanah. Oleh karena itu, perlu mengetahui jenis tanah yang dipakai dan sifat permeable tanah tersebut. Permeabilitas tanah menggambarkan kemampuan tanah dalam meloloskan air. Pada penelitian ini untuk mengetahui permeabilitas tanah dengan menggunakan mold segiempat dan membandingkan hasil permeabilitas tanah yang didapatkan dari tanah yang dipadatkan menggunakan metode tekanan dan secara metode standar. Sampel tanah yang digunakan berupa sampel tanah yang berasal dari desa Pamenang, Pringsewu. Tanah yang diambil merupakan sampel tanah yang terganggu dan sampel tanah tak terganggu. Tanah tersebut selanjutnya dipadatkan dengan metode standar dan dengan alat uji metode tekanan pada tekanan 5 MPa, 10 MPa, dan 15 MPa. Selanjutnya dilakukan pengujian permeabilitas untuk mendapatkan nilai koefisien permeabilitasnya. Hasil dari pengamatan di laboratorium menunjukan semakin besar tekanan yang diberikan pada tanah maka semakin kecil koefisien permeabilitasnya. Hubungan koefisien permeabilitas dengan metode pemadatan standar dan metode tekanan memperoleh nilai koefisien permeabilitas sehingga tekanan berada diantara nilai 5 sampai 10 MPa.  Kata kunci: Tanah, Pemadatan, Tekanan dan Permeabilitas.
Kajian Perbaikan Tanah Dasar dan Proteksi Lereng pada Rencana Jalur Ganda Kereta Api Antara Giham-Martapura Hidayat, Oktario Eko; Afriani, Lusmeilia; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1405

Abstract

The train is a means of transportation favored by the community because the train is one of the modes of transportation that has special characteristics and advantages. Along with the development of infrastructure development in Lampung Province and South Sumatra Province, the planning and design of a building must be done carefully and well, one of them is by building a double track between Giham - Martapura, South Sumatra because the application of one track has many obstacles. It is hoped that the addition of the double track can make the train schedule more timely and can improve the quality of the trip. Based on the results of the Atterberg boundary test the soil originating from the undisturbed soil sample of the Giham-Martapura railroad gets an PI value <LL-30 (26.51% <27.95%), then the land based on the AASHTO system is classified into A -7-5 that is clay soil and as subgrade material has normal to poor evaluation. Keywords: railroad, land, double track, slope protection.
Analisa Kelongsorang Lereng Akibat Dari Peningkatan Kadar Air YangTinggi Rinaldi, Muhamad Rizki; Afriani, Lusmeilia; Hadi, Yohanes Martono
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1432

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.
Analisis Stabilitas Lereng Dengan Variasi Lapisan Tanah Berbeda Yang Di Pengaruhi Nilai Kohesi Tanah Atmoko, Fajar Destri; Afriani, Lusmeilia; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1531

Abstract

Natural disasters often occur in hilly areas in Lampung Province, namely landslides. Slides thatoccur due to increased soil pore water pressure. The GeoStudio SLOPE / W 2012 program cananalyze slope stability which can be modeled according to the original conditions in the field andcan determine the value of the slope safety factor. In this study, there are four cross sections ofslopes with four different layers with an angle of 30 ° each, and following a maximum height of 18meters.The results of the analysis of the GeoStudio Slope / W 2012 program using 4 methods of analysis,namely Ordinary, Bishop, Janbu and Morgenstern Price, obtained different safe factor values, theMorgenstern Price method and the Bishop method have a safe factor value that tends to be thesame and greater than the Ordinary method and the method. Janbu tends to have a smaller safetyfactor.The shape of the cross section of the slope in the 5 soil layers is the most safe factor, different soillayers, it can be seen that each layer of soil has different safety factors but does not differ muchfrom the others.
Uji Kepadatan Tanah Timbunan Pilihan Untuk Inti Bendung Terhadap Nilai Permeabilitas Anggraini, Hany Octavia; Iswan, Iswan; Afriani, Lusmeilia
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 1 (2021): Edisi Maret 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i1.1665

Abstract

The development of infrastructure development in Indonesia is increasing in various areas, such as the construction of reservoirs, reservoirs, dams and other constuctions. One of the important things that is the basis of development is land because almost all buildings stand on the ground. Therefore, it is necessary to know the type of soil used and the nature of the soil permeability. Soil permeability describes the ability of the soil to pass water. Soil samples used were soil samples from Pamenang village, Pagelaran sub-district, Pringsewu district. Soil samples taken are disturbed and undisturbed soil samples. The soil is then compacted by the standard method and with the pressure method test apparatus at a pressure of 2,5 MPa, 5 MPa, 7,5 MPa, 10 MPa, 15 MPa, 20 MPa, and 30 MPa, each method has one sample being tested. Furthermore the permeability test was carried out to obtain the permeability coefficient value.Results from observations in the laboratory show that the greater the pressure exerted on the soil, the smaller the permeability coefficient. The relationship between the permeability coefficient and the standard compaction method and the pressure method obtained different permeability coefficient values.Keyword : Soil, Compaction, Pressure and Permeability
Hubungan Nilai CBR Laboratorium dengan Pemadatan Modified dan Nilai Dynamic Cone Pentrometer (DCP) di Lapangan Pratomo, Riant Pandu; Putra, Andius Dasa; Sulistyorini, Rahayu; Afriani, Lusmeilia
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2082

Abstract

Tanah merupakan salah satu bagian penting dalam pekerjaan konstruksi teknik sipil. Kekuatan tanah dasar sangat penting guna menopang beban konstruksi. Beberapa cara untuk mengestimasi nilai CBR adalah dengan soil grading dan data plastisitas tanah. Namun pada kenyataannya di lapangan, banyak kendala yang dihadapi maka seringkali dilakukan uji DCP (Dynamic Cone Penetrometer). Penelitian ini dilakukan untuk mengetahui persamaan hubungan antara CBR laboratorium dan DCP serta perbandingannya dengan persamaan SNI. Penelitian dilakukan dengan menguji tanah di Teluk Ratai Kabupaten Pesawaran pada tiga titik dengan pengujian CBR laboratorium (Unsoaked), DCP mould, dan DCP lapangan. Sampel tanah dipadatkan dengan variasi pemadatan 10, 25, dan 56 tumbukan dan kadar air optimum sebesar 22,95% yang didapat dari uji pemadatan dengan proctor modified. Hasil penelitian menunjukkan persamaan korelasi CBR Laboratorium dengan gd adalah y = 30,878x – 26,98 dengan korelasi persamaan CBR dan DCP didapat Log (CBR) = 2,26557 – 0,807 Log (DCP). Bila dibandingkan dengan nilai CBR hasil persamaan CBR SNI, nilai CBR dari persamaan CBR dan DCP memiliki nilai yang lebih tinggi. Kata kunci : tanah, daya dukung, CBR laboratorium, DCP lapangan.
Perbandingan Nilai Derajat Kepadatan Tanah Metode Standard Proctor dengan Alat Uji Tekan Modikasi dan Uji Sand Cone di Lapangan Adenora, Novan; Afriani, Lusmeilia; ., Iswan; Putra, Andius Dasa
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2130

Abstract

Perkembangan teknologi dalam pengujian pemadatan menginspirasi Teknik Sipil Universitas Lampung untuk membuat prototipe alat uji tekan modifikasi yang dapat diatur tekanannya. Cara kerja dengan alat ini yaitu dengan menggunakan nilai kadar air optimum yang didapatkan melalui uji pemadatan standard proctor. Dengan nilai kadar air tersebut lalu digunakan untuk menguji sampel dengan tekanan yang berbeda yaitu 5 Mpa, 10 Mpa, dan 15 Mpa.  Penelitian dilakukan dengan tujuan untuk membandingkan uji pemadatan metode standard Proctor, dan uji pemadatan dengan alat tekan modifikasi serta uji sand cone dilapangan untuk mendapatkan nilai derajat kepadatan. Pada uji pemadatan dengan metode standard proctor didapat berat volume kering maksimum sebesar 1,42 gr/cm3 dan nilai kadar air optimum sebesar 24,05 %. Uji pemadatan tanah menggunakan metode tekan didapat berat volume kering terbesar pada tekanan 15 Mpa yaitu sebesar 1,58 gr/cm3. Dan dari uji sand cone didapat nilai derajat kepadatan tanah dari uji standard proctor dan uji menggunakan alat tekan modifikasi terdapat perbedaan antara 7,78 % sampai 10,2 %.
Korelasi Nilai CBR Laboratorium dan Nilai Dynamic Cone Pentrometer (DCP) terhadap kondisi eksisting di Lapangan Kafi, Muhammad; ., Iswan; Afriani, Lusmeilia; Putra, Andius Dasa
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2148

Abstract

Tanah dalam suatu konstruksi haruslah memiliki nilai kepadatan tanah yang tinggi, nilai kepadatan tanah yang tinggi mempengaruhi daya dukung tanah dalam memikul beban diatasnya. seringkali dilakukan uji penetrasi konus dinamis/DCP (Dynamic Cone Penetrometer). Untuk mendapatkan nilai CBR, hasil uji DCP ini dikorelasikan dengan suatu rumusan Korelasi Nilai DCP-CBR. Namun untuk mengantisipasi kekurangan dalam pengujian korelasi CBR-DCP, perlu dikoreksi dengan Rumusan Korelasi DCP-CBR dari Kementrian PUPR yang berlaku umum untuk seluruh kawasan wilayah Indonesia. Penelitian ini dilakukan dengan melakukan test DCP pada 3 titik di lapangan lalu diambil sampel tanah yang selanjutnya akan dibawa ke laboratorium untuk dilakukan uji sifat fisik tanah. Setelah semua data telah didapatkan baru menganalisi dan merumuskan rumus korelasi DCP – CBR dan dibandingkan dengan rumus korelasi. setelah di lakukan penelitian di ketahui bahwa model rumusan kolerasi DCP – CBR diteliti mempunyai rumus Log CBR = 3.2322 – 1.512 Log DCP, dimana rumus ini sudah sesuai secara umum dengan rumus kolerasi DCP – CBR dari kemetrian PU karena posisi kurva Rumus Korelasi DCP-CBR penulis sedikit diatas kurva rumus Korelasi DCP-CBR Kementrian PUPR
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