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All Journal Simposium II UNIID 2017 Syntax Literate: Jurnal Ilmiah Indonesia CANTILEVER TEKNIKA Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Jurnal Indonesia Sosial Teknologi Jurnal Teknik Sipil LATERAL
Yulindasari Sutejo, Yulindasari
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Sriwijaya
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation Other

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Journal : CANTILEVER

 1 
ANALISIS PENGARUH CAMPURAN PUPUK UREA TERHADAP KUAT GESER TANAH LEMPUNG LUNAK DENGAN UJI TRIAXIAL Sutejo, Yulindasari; Dewi, Ratna; Haryadi, Dwi; Kurniawan, Reffanda
CANTILEVER Vol 4, No 1 (2015): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

The soil plays an important role in a construction site. One type is the soft clay soil that has a value compressibility and high water levels so low soil shear strength that reduce the bearing capacity of the soil. In this study conducted by the method of soil improvement, soil stabilization using a mixture of urea fertilizer with percentage of 5 %, 10 %, and 15 % with a treatment period of 3 , 7, and 14 days with Triaxial test. Soft clay soil samples taken in the area around UNSRI, Inderalaya, OI, South Sumatra. The test results of soil properties, w 35.20 %; 2.53 Gs; PL 21.14 %; LL 42 % and IP 20.86 %. According to the USCS, the soil categorized CL, while according to AASHTO, the soil is categorized class A-7-6. Results of Triaxial testing , the value of cohesion (c) 5 % maximum on the addition of urea fertilizer (14 days) is 1.138 kg /cm2 . While the value of shear angle (f) and shear strength (τ) maximum on the addition of 15 % urea fertilizer (3 days) of 26,42o and 3.93 kg /cm2 .Key Words : Urea Fertilizer, Shear Strength, Triaxial, Soft Clay
PENGGUNAAN TERPAL DAN GRID BAMBU SEBAGAI ALTERNATIF PERBAIKAN TANAH TERHADAP PENURUNAN PONDASI DANGKAL PADA TANAH GAMBUT Dewi, Ratna; Sutejo, Yulindasari; Faskal, Faskal
CANTILEVER Vol 5, No 1 (2016): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Ground improvement techniques are commonly performed on peat soil is improved physically using geosynthetic materials. The often used is geotextile. In this study the use of geotextile replaced with the use of a tarpaulin and bamboo grid. They are used as reinforcement materials that is expected to be an alternative to increase the bearing capacity of peat soil which is used as the based of shallow foundation. The aim of this study is to determine the increase in the bearing capacity of variation in depth of reinforcement to the base foundation (0,25B; 0,5B; 1B) and variation in width of reinforcement (2B, 3B, 4B) to the value of bearing capacity withouth reinforcement. The research methodologies used is laboratory-testing. The data obtained from these tests were analyzed by comparing the value of bearing capacity between unreinforced soils and reinfoces soils reffered as Bearing Capacity Ratio (BCR). The results showed that the variation in the depth of the tarpaulin and bamboo on the basic foundation of the grid did not always show a rise greater carrying capacity , however, wide variations in accretion reinforcement always indicates an increase in the carrying capacity of the land. In the distance variation of reinforcement to the foundation, the maximum increase is shown at a depth of 0,5 B with a width of reinforcement for the 4B qu at 20,44 kPa. The largest value of BCR is variation in depth of reinforcement to the base foundation 0,5 B and variation in width of reinforcement 4B with a value of 3,78 and a percent increase of 277,8 %.
PEMODELAN REGRESI LINIER BERGANDA DAN ESTIMASI BIAYA PERBAIKAN LERENG MENGGUNAKAN SOIL NAILING (STUDI KASUS : JALAN MUARA ENIM – SP. SUGIHWARAS) Juliantina, Ika; Sutejo, Yulindasari; Butarbutar, Samuel; Agustien, Melawaty; Adhitya, Bimo Brata; Alia, Febrinasti
CANTILEVER Vol 6, No 2 (2017): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Muara Enim road segment SP. Sugihwaras very potential to occur landslide based on its location which is on the edge of the river. Recorded by the National Road Implementation Institute (BBPJN) III has been a slope grid in 2014. Slope improvement efforts undertaken by the Ministry of Public Works using a combination of gabion not too successfully overcome the problem. In addition to the strength element of a construction work, the cost and timing of the implementation are also important considerations in planning. Slope at 173 + 535 - Km 173 + 705 along 170 m using soil nailing planned three nails with 19 mmnail diameter and angular slope of 20° with variation of nail length, nail installation spacing, safety factor (SF) and estimated working time to the cost. Using the SPSS.16.0 program, the variations are modeled by nine samples as multiple linear regression equations. Based on the SPSS output, then tested the classical assumption and feasibility test model which produced the model: Cost (million) = - 3159,475 - 54,097 length - 1354,256 distance + 5188,127 SF + 26,483 time. The Budget Plan (RAB) covers preparatory work, drainage system, soil nailing, and shotcrete. An efficient cost estimate of 8 m length nail, 1.5m installation distance, 1.5 safety factor and 64-day working time resulted in a cost of Rp. 3.853.485.500,00 (Three billion eight hundred fifty three million four hundred eighty five thousand rupiah).
PENGARUH LIMBAH PLAFON GIPSUM TERHADAP PENURUNAN KONSOLIDASI PADA TANAH LEMPUNG EKSPANSIF Dewi, Ratna; Sutejo, Yulindasari; Rahmadini, Rizki; Arfan, Muhammad; Rustam, Reffanda Kurniawan
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (515.959 KB) | DOI: 10.35139/cantilever.v8i1.78

Abstract

Expansive clay has a high potential to swell if compared to other types of clay.  Expansive clay also has very low bearing capacity so that a method of soil improvement was needed to improve the soil.  This type of soil can be found in Gasing village, Tanjung Api-Api Km.  11 Banyuasin regency of South Sumatra Province.  This research aims to study the mixture of gypsum plafond waste as additives in the process of stabilizing expansive soil clay.  It can be made according to the needs of the mixture.  In this study, the percentage of mixture of gypsum plafond waste are 5 %, 10 % and 15%.  The test used an Oedometer (SNI 2812: 2011/ASTM D2435) equipment.  By giving the pressure of 2.5 kN/m2; 5 kN/m2; 10 kN/m2; 20 kN/m2; and 40 kN/m2.  The test results of the clay without mixture with gypsum plafond obtained were liquid limit value (LL) = 67%, plastic limit (PL) = 26.38% and plastic index value (PI) of 40.62%.  Spesific Gravity (Gs) = 2.696, optimal water content (wopt) = 21.55 % and optimal dry weight (wopt) = 1.55 gr/cm3.  Therefore, the soil sample was an expansive clay type and classified as A-7-6 (AASHTO classification).  Consolidated test results show that soil compression index (Cc) = 0.190.  After mixed with gypsum plafond waste of 15 %, the compression index value (cc) = 0.080.  This indicates that the compression index value (cc) has decreased.  Based on the above, it can be concluded that the mixture of gypsum waste in expansive clay causes soil settlement.
Co-Authors Adhitya, Bimo Brata Adiguna, Adiguna Alia, Febrinasti Alzahri, Syahril Armo, Achmad Abraham Setiawan Betty Susanti, Betty Budi Ariawan Butarbutar, Samuel Citra Indriyanti Dewi, Ratna Dewi, Ratna Dwi Wahyuni Edi Kadarsa, Edi Faskal, Faskal Fathunnisa Febrian Hadinata Febrian Hadinata Hadinata, Febrian Hardiansyah, Dani Hartini Hartini Haryadi, Dwi Hendry Wijaya Hiraliyamaesa H, R Dewo Ika Juliantina Khaidarius, Angga Kiagus Muhammad Aminuddin Maulid M. Iqbal, Maulid M. Melawaty Agustien, Melawaty Mirka Pataras Nasution, Ali Napiah Oktopani, Deli Putra Anugrah Rahmadini, Rizki Ramadhani Ramadhani Ratna Dewi Ratna Dewi Ratna Dewi Ratna Dewi Reffanda Kurniawan, Reffanda restu juniah, restu Ridhuan Andika Saloma Sugita, Ageng Trisno Sutanto Muliawan Syarif Hidayat Syarif Hidayat