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Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Agusni, Restu; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.703

Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption

Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Agusni, Restu; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.704

Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption

STUDI KONVERSI ENERGI PEMADATAN TANAH DENGAN MODIFIED PROCTOR METHOD UNTUK TANAH PASIR BERLEMPUNG Ulfa, Siti Zahhara; Adha, Idharmahadi; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.724

Related to increased of society economics and the growth rate of vehicles, this needs to be balanced with facilities of transportation. So, a new road or repair existing road is needed. The physical and mechanical conditions of soil are closely related to the construction. It caused the soil has a very crucial role in supporting the construction. To obtain good quality pile of soil, soil compaction is required to stabilize against both structural or non-structural loads. In this study comparing the modified proctor method soil compaction energy with modified press compactor tools.The soil samples used is from Tirtayasa Region Sukabumi District Bandar Lampung, it consists of twelve samples used for modified press compactor tools tests, with pressure used are 5 MPa, 10 MPa, 15 MPa, and 20 MPa. For every pressure conducted for 3 soil samples.Laboratory experiment result shows that the maximum volume weight (γdmaks) of 1,42 gr/cm3 amount on modified proctor method tests with the results on modified press compactor tools obtain pressure value of 7 MPa value and the pressure on sheep foot rifling machine of 6,9 N/mm2.KEYWORDS : Modified Proctor, Modified Press Compactor Tools, Compaction, Soil Pile.

Analisis Desain Pondasi Rakit untuk Bangunan Bertingkat dengan Metode Konvensional Bahagianda, Dhyna Annisa Maghfira; Setyanto, Setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.726

The foundation of the building is usually divided into two parts: shallow foundation and deep foundation, depending on the location of hard soil and the depth ratio with the width of the foundation (D ≤ B). The foundation of this raft serves to mediate the surface of one or more columns within several lines or paths with the ground. The use of the raft foundation is used when the decline is a problem eg in soft soil. The foundation of raft becomes alternative choice seen from external factor that is implementation process which do not give impact to surrounding environment or building around it. In this study conducted data collection obtained from the results of laboratory tests in the form of data sondir results, SPT results and data in the form of load structures and field load tests and building analysis load. From the laboratory results and the subsequent building load, the calculation of the force field with the SAP 2000 program, calculate the maximum carrying capacity of the raft foundation under review, calculate the decline of the raft foundation and obtain the result of the structural requirements of the raft foundation. Based on the results of the analysis in this study found the carrying capacity of soil for raft foundation of 907.643 kN/m2. While the maximum voltage distribution at the base of the raft foundation due to the load and moment is 38.0696 kN/m2. Keywords: Raft Foundation, Bearing Capacity, Reinforcement

Pemanfaatan Alat Tekan Penetrasi Modifikasi Paving Block Untuk Melihat Nilai Kuat Tekan Yang Dipengaruhi Oleh Waktu Perendaman Menggunakan Tanah, Semen, Dan Kapur Aldani, Muhammad; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.729

Soil sample that used as base material in this study was taken from Belimbing Sari Village area, Sub Jabung, East Lampung. Based on the testing of soil physical's characteristics, USCS classified soil samples as organic soil with medium to high plasticity and belongs to the OH group. The mixed content which used in this study was 85% soil, 10% lime, and 5% cement with curing time for 14 days, then it was divided with combustion and without combustion treatment on the paving block sample and soaked for 4, 8, 12, and 16 days. The result of this study was to obtain the average value of pressed-value on a mixture of 85% soil + 10% lime + 5% cement after the largest burning treatment and soaked for 4 days at 11.7 MPa. Thus, in addition to the combustion, the duration of immersion also affects its pressed-value. The longer it had soaked, the smaller its pressed-value would be. Therefore, this pressed-value met the requirement of the paving blocks' SNI-03-0691-1996 that was qualified on the classification of quality D which had the average pressed-value of at least 10 MPa. In addition to the pressed-value, the water absorption rate which was 15.5% -20.32% did not meet the paving blocks' requirement of SNI-03-0691-1996.Key words : Paving block, organic clay soil, compressive strength, water absorption, immersion.

Analisis Desain Pondasi Rakit untuk Bangunan Bertingkat dengan Metode Konvensional Bahagianda, Dhyna Annisa Maghfira; Setyanto, Setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.731

The foundation of the building is usually divided into two parts: shallow foundation and deep foundation, depending on the location of hard soil and the depth ratio with the width of the foundation (D ≤ B). The foundation of this raft serves to mediate the surface of one or more columns within several lines or paths with the ground. The use of the raft foundation is used when the decline is a problem eg in soft soil. The foundation of raft becomes alternative choice seen from external factor that is implementation process which do not give impact to surrounding environment or building around it. In this study conducted data collection obtained from the results of laboratory tests in the form of data sondir results, SPT results and data in the form of load structures and field load tests and building analysis load. From the laboratory results and the subsequent building load, the calculation of the force field with the SAP 2000 program, calculate the maximum carrying capacity of the raft foundation under review, calculate the decline of the raft foundation and obtain the result of the structural requirements of the raft foundation. Based on the results of the analysis in this study found the carrying capacity of soil for raft foundation of 907.643 kN/m2. While the maximum voltage distribution at the base of the raft foundation due to the load and moment is 38.0696 kN/m2. Keywords: Raft Foundation, Bearing Capacity, Reinforcement

Korelasi Daya Dukung Tanah dengan Kuat Geser Menggunakan Alat Vane Shear dan Direct Shear Adama, Riri Arinda; Setyanto, setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.739

The soft clay soil has expansive behavior that expands when exposed to water, this will be very dangerous to the construction to be built on it, because clay soil generally has a low shear strength and high compressibility. To know the parameters and characteristics of strong clay soil shear in an area, can use vane shear test and direct shear test. The soil samples were taken from Jabung, East Lampung for testing laboratory modeling on glass box with vane shear and direct shear tools with a weight of ± 130,730 grOn the direct shear tests when soil conditions remolded at a depth of 30 cm shear strength values obtained at 0.0743 kg/cm2, on vane shear test obtained 0.38 kg/cm2 with soil bearing capacity of 0.6048 kg/cm2, at a depth of 50 cm obtained a shear strength value of 0.0779 kg/cm2, on vane shear test obtained 0.54 kg/cm2 with soil bearing capacity of 0.6738 kg/cm2. In saturated soil conditions a depth of 30 cm obtained a shear strength value in the direct shear test of 0.0553 kg/cm2, the vane shear test of 0.46 kg/cm2 with a bearing capacity of 0.4116 kg/cm2, a depth of 50 cm obtained shear strength value of 0.0743 kg/cm2, the vane shear testing with a 0.65 kg/cm2 earned bearing capacity of 0.6308 kg/cm2. From the test results direct shear test and vane shear test known that the shear strength in direct shear tests is smaller than the vane shear test. Keywords: Vane shear, direct shear, Clay soil shear strength, Soil bearing capacity.

Menentukan Nilai CBR Menggunakan Alat DCP Dalam Grafik Dan Persamaan Fungsi Ardianto, Yupi; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.741

Kekuatan tanah dasar memegang peranan penting dalam mendukung suatu konstruksi seperti; jalan, bangunan gedung , jembatan dan sebagainya. Dan untuk menilai kekuatan tanah dasar tersebut, dipergunakanlan nilai CBR (California Bearing Ratio). Tetapi seringkali di lapangan, karena keterbatasan transportasi pada daerah pedalaman dan ketersediaan alat pengujian yang cukup memadai, alat yang paling mudah untuk mendapatkan nilai CBR dari tanah dasar tersebut dapat digunakan alat Dinamic Cone Penetrometer (DCP). Dari data pengujian alat DCP tadi, dengan menggunakan fungsi logaritma tertentu sesuai dengan besaran sudut konus dari alat DCP, yaitu 30o atau 60o, yang kemudian digambarkan dalam grafik hubungan antara besaran penetrasi dan jumlah tumbukan, didapatlah besaran nilai CBR. Grafik hubungan yang digunakan adalah perumusan dari Smith dan Pratt, 1983 untuk sudut konus 300 dengan persamaan Log CBR = 2,503 – 1,15 (Log DCP), dan TRL, Road Note 8, 1990, untuk sudut konus 600 dengan persamaan Log CBR = 2,48 – 1,057 (Log DCP). Sebelumnya sudah ada, grafik hubungan DCP dan CBR, akan tetapi untuk menentukan nilai CBR yang dihasilkan, harus menggunakan cara diterawang menggunakan kertas lain, dan hal ini cukup menyulitkan jika titik yang diuji sangat banyak jumlahnya. Dengan perhitungan logaritma yang diaplikasikan ke grafik dan persamaan fungsi, diharapkan dapat mempermudah dan mempersingkat waktu yang dibutuhkan untuk mengolah data DCP yang diuji. Kata kunci : Tanah dasar, grafik DCP, hubungan DCP dan CBR, logaritma DCP

Perencanaan Dinding Penahan Tanah Concrete Cantilever Dengan Menggunakan Program Plaxis (Studi Kasus : Jalan Liwa – Simpang Gunung Kemala Krui KM.264+600) Winanda, Restu Arga; Setyanto, Setyanto; Hadi, Yohanes Martono
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 4 (2017): Edisi Desember 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i4.747

Landslides in Bukit Barisan Selatan National Park (TNBBS) usually occur during the rainy season, because the intensity of the rain more than usual, causing soil to become saturated with water in which the soil is no longer able to accommodate the water into the pores so that the pore water will rise resulting in shear strength become so small that the land becomes unstable and prone to landslides. Plaxis is a computer program based on two-dimensional finite element method that is used specifically to perform deformation and stability analysis for various applications in the geotechnical field by modeling geometry and mesh elements based on cross section. From the analysis of slope stability with a height of 10 m, the slope is expressed in critical condition. The countermeasures are carried out with three conditions, the slope with cantilevered wall strengthening B is considered safe because it has a safety factor value of 1.4953, and the smallest displacement and settlement value between two other conditions and satisfies the shear stability of 2.8200> 2 (Safe), the stability of overturning 3.9631> 2 (Safe) and soil bearing capacity is 2.2782> 2 (Safe). Keywords: slope stability, safety factor, plaxis, cantilevered retaining wall.

STUDI PERBANDINGAN NILAI ENERGI PEMADATAN TANAH MENGGUNAKAN PROCTOR MODIFIED DENGAN ALAT TEKAN MODIFIKASI (STUDI KASUS TANAH TIMBUNAN PILIHAN) perkasa, arief cahya; Setyanto, Setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 4 (2017): Edisi Desember 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i4.768

Pembangunan daerah menjadi prioritas pemerintah saat ini, seperti pembangunan Jalan Tol Lintas Sumatera. Pembangunan sangat erat kaitannya dengan pekerjaan tanah, karena tanah merupakan salah satu material yang memegang peranan penting dalam mendukung suatu konstruksi. Umumnya, suatu konstruksi dibangun dengan elevasi yang tidak sesuai, sehingga pekerjaan galian dan timbunan perlu dilakukan. Untuk mendapatkan tanah timbunan dengan kualitas yang baik, diperlukan pemadatan agar memperoleh tanah yang stabil dan memenuhi persyaratan teknis untuk membangun suatu struktur.. Pada penelitian ini membandingkan energi pemadatan tanah metode proctor modified dengan alat tekan pemadat modifikasi untuk tanah timbunan pilihan. Sampel tanah yang digunakan adalah tanah timbunan pilihan, berasal dari Desa Gedung Agung, Kecamatan Jati Agung, Lampung Selatan. Pengujian alat tekan pemadat modifikasi ini terdiri dari 4 tekanan berbeda yaitu 5 MPa, 10 MPa, 15 MPa dan 20 MPa, menggunakan tiga sampel tanah pada masing-masing tekanan. Hasil pengujian di laboratorium menunjukkan bahwa berat volume maksimum (γdmaks) sebesar 1,706 gr/cm3 pada pengujian metode proctor modified dengan hasil pada alat tekan pemadat modifikasi didapat nilai tekanan sebesar 10 MPa.

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