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Observation Of Clay Settlement Of Consolidation In Petarukan District Pemalang Regency Stabilized By Using Salt (Nacl) Anjasmoro, Joko Dwi; Rezeki, Ingrid Multi
Journal of Green Science and Technology Vol 3, No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2382

Abstract

Soil stability is an effort made to improve the properties of the origin of the soil, basically stabilization using salt has the same principle as stabilization using other chemicals. Based on the research on native soil combat, the value of 42.25% is categorized into soil types have high plasticity therefore the soil needs repair or stabilization.In this study chemical stabilization was carried out by adding ingredients to stability of salt (Nacl) with a percentage of 4% , 8%, and 12% of the weight of the sample. The research method used is divided into two, namely physical properties test consisting of water content test, density test, atterberg test and filter analysis test and mechanical properties test consisting of compacting test and consolidation test .The results of physical properties test showed that the greater the percentage of NaCl addition in water content, plastic limit, shrinkage limit increased while the specific gravity value, liquid limit, plasticity index and pass filter No. 200 decreased. While in the compaction test the weight value of the maximum dry volume increases and the optimum water content value decreases along with the percentage addition of NaCl. The maximum weight value of maximum dry volume is 1.675 gr / cm3 and the lowest optimum water content is 15.509% in mixed soil with the percentage of addition of 12% NaCl. Meanwhile the consolidation test results showed that the greater percentage percentage of NaCl consolidation coefficient (Cv) increases , while for the Cc index value and the consolidation decrease (Sc) decreases.Keywords : clay soil, Stablizing,Consolidation , salt (NaCl).
ANALYSIS AND DESIGN OF MRT’S CIRCULAR TU Prayoga, Bagus; Sumarman*, Sumarman; Rezeki, Ingrid Multi
Journal of Green Science and Technology Vol 2, No 1 (2018): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v2i1.1168

Abstract

ABSTRACTJakarta MRT was one of solution to solve the traffic jam in Jakarta. There are two physical constructions which serves as the main infrastructure of Jakarta MRT, elevated and underground track. It is not only the first MRT in Indonesia but also, the first large-scale underground works in Jakarta. The physical construction of underground structure became an interesting case to be researched. The use of precast concrete tunnel lining (PCTL) segment was necessary to hold the loads and to provide the space for underground track.In designing the tunnel lining, calculation of the member forces and safety check are necessary to determine the amount of rebar and the dimension, and also to know the value of safety, so, the tunnel lining can be used as the function. According to the guidelines for the design of shield tunnel lining issued by International Tunnelling Association (ITA, 2000), the member forces of tunnel lining could be calculated by (1) Elastic Equation Method, (2) Bedded Frame Method, (3) Finite Element Method (FEM). In this research, the member forces of tunnel lining are calculated using analytical method, without computer program. Therefore, method (1) is used to know the value of each member forces to be used for designing the reinforcement bars. The member forces are analysed for tunnel lining with 6.8 m outer diameters, 1.5 m width and 0.25 m thickness in Jakarta MRT CP106 (Bundaran HI).Based on research which has been done, obtained the maximum values for positive bending moment in the tunnel crown (? = 0?) is 101.352 kN.m, for negative bending moment in the tunnel axis (? = 90?) is -281.394 kN.m. In contrary, the value of maximum axial force is in the tunnel axis (? = 90?) is 1094.538 kN, for minimum axial force is in the tunnel crown (? = 0?) is 904.674 kN. While, the value of maximum shear force is in (? = 120?) is 118.740 kN, for minimum shear force is in (? = 30?) is -66.866 kN. The result of safety checks against member forces in tunnel lining, the value of nominal bending moment multiplied by reduction factor (? ? Mn) is 296.263 kN.m, bigger than the value of ultimate bending moment (Mu) is 281.394 kN.m. For the value of nominal shear force multiplied by reduction factor (? ? Vn) is 136.095 kN, bigger than the value of ultimate shear force (Vu) is 118.740 kN. While, safety check against thrust force of shield jack obtained the value of maximum compressive stress of concrete segment (??) is 5.016 MN/m2, bigger than the value of allowable stress (???) is 16 MN/m2.Keywords: Jakarta MRT, underground, tunnel lining, member forces, Elastic Equation Method.
PAVEMENT ROAD DESIGN OF CIKEBO MAJALENGKA Ingrid Multi Rezeki; Dede Rukmawati
NUSANTARA : Jurnal Ilmu Pengetahuan Sosial Vol 8, No 6 (2021): NUSANTARA : Jurnal Ilmu Pengetahuan Sosial
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jips.v8i6.2021.1804-1812

Abstract

The condition of construction of a good pavement is sought to be able to meet the functional requirements of providing a sense of security and comfort as well as the minimum time and distance for road users. Therefore, it is deemed necessary to build a new road infrastructure alternative roads to avoid congestion from markets and terminals, in order to provide security and comfort for road users, as well as a more efficient travel time. In making this final assignment the author wants to plan the geometric path that is in accordance with the function and class of the road, safe to pass and accelerate travel time, and plan the thickness of the pavement.  planned type of pavement is rigid pavement with an estimated design life of 20 years, Traffic growth rates (i) 5%, road plan local road class, heaviest axle load 8 Ton (UU No.22 Th. 2009), value plan CBR 6% (from PUPR), Rainfall 4362 mm/year (2019), Pavement type plan rigid pavement reinforcement without continued, and the thickness of pavement obtained from the calculation is 15 cm for the surface layer.
Observation Of Clay Settlement Of Consolidation In Petarukan District Pemalang Regency Stabilized By Using Salt (Nacl) Joko Dwi Anjasmoro; Ingrid Multi Rezeki
Journal of Green Science and Technology Vol 3, No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2382

Abstract

Soil stability is an effort made to improve the properties of the origin of the soil, basically stabilization using salt has the same principle as stabilization using other chemicals. Based on the research on native soil combat, the value of 42.25% is categorized into soil types have high plasticity therefore the soil needs repair or stabilization.In this study chemical stabilization was carried out by adding ingredients to stability of salt (Nacl) with a percentage of 4% , 8%, and 12% of the weight of the sample. The research method used is divided into two, namely physical properties test consisting of water content test, density test, atterberg test and filter analysis test and mechanical properties test consisting of compacting test and consolidation test .The results of physical properties test showed that the greater the percentage of NaCl addition in water content, plastic limit, shrinkage limit increased while the specific gravity value, liquid limit, plasticity index and pass filter No. 200 decreased. While in the compaction test the weight value of the maximum dry volume increases and the optimum water content value decreases along with the percentage addition of NaCl. The maximum weight value of maximum dry volume is 1.675 gr / cm3 and the lowest optimum water content is 15.509% in mixed soil with the percentage of addition of 12% NaCl. Meanwhile the consolidation test results showed that the greater percentage percentage of NaCl consolidation coefficient (Cv) increases , while for the Cc index value and the consolidation decrease (Sc) decreases.Keywords : clay soil, Stablizing,Consolidation , salt (NaCl).
ANALYSIS AND DESIGN OF MRT’S CIRCULAR TU Bagus Prayoga; Sumarman Sumarman*; Ingrid Multi Rezeki
Journal of Green Science and Technology Vol 2, No 1 (2018): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v2i1.1168

Abstract

ABSTRACTJakarta MRT was one of solution to solve the traffic jam in Jakarta. There are two physical constructions which serves as the main infrastructure of Jakarta MRT, elevated and underground track. It is not only the first MRT in Indonesia but also, the first large-scale underground works in Jakarta. The physical construction of underground structure became an interesting case to be researched. The use of precast concrete tunnel lining (PCTL) segment was necessary to hold the loads and to provide the space for underground track.In designing the tunnel lining, calculation of the member forces and safety check are necessary to determine the amount of rebar and the dimension, and also to know the value of safety, so, the tunnel lining can be used as the function. According to the guidelines for the design of shield tunnel lining issued by International Tunnelling Association (ITA, 2000), the member forces of tunnel lining could be calculated by (1) Elastic Equation Method, (2) Bedded Frame Method, (3) Finite Element Method (FEM). In this research, the member forces of tunnel lining are calculated using analytical method, without computer program. Therefore, method (1) is used to know the value of each member forces to be used for designing the reinforcement bars. The member forces are analysed for tunnel lining with 6.8 m outer diameters, 1.5 m width and 0.25 m thickness in Jakarta MRT CP106 (Bundaran HI).Based on research which has been done, obtained the maximum values for positive bending moment in the tunnel crown (θ = 0°) is 101.352 kN.m, for negative bending moment in the tunnel axis (θ = 90°) is -281.394 kN.m. In contrary, the value of maximum axial force is in the tunnel axis (θ = 90°) is 1094.538 kN, for minimum axial force is in the tunnel crown (θ = 0°) is 904.674 kN. While, the value of maximum shear force is in (θ = 120°) is 118.740 kN, for minimum shear force is in (θ = 30°) is -66.866 kN. The result of safety checks against member forces in tunnel lining, the value of nominal bending moment multiplied by reduction factor (ϕ · Mn) is 296.263 kN.m, bigger than the value of ultimate bending moment (Mu) is 281.394 kN.m. For the value of nominal shear force multiplied by reduction factor (ϕ · Vn) is 136.095 kN, bigger than the value of ultimate shear force (Vu) is 118.740 kN. While, safety check against thrust force of shield jack obtained the value of maximum compressive stress of concrete segment (????????) is 5.016 MN/m2, bigger than the value of allowable stress (????????????) is 16 MN/m2.Keywords: Jakarta MRT, underground, tunnel lining, member forces, Elastic Equation Method.
OPTIMALISASI PEMANFAATAN DAUN KELOR SEBAGAI INOVASI PANGAN LOKAL DALAM PENCEGAHAN STUNTING DI DESA PANONGAN Aulia Rahmawati; Cahya Hilda Laela; Shifaniya Isnaeni; Jujun Nasrudin; Ikhsanul Adib; Ichlasul Amal; Diana Mega Utami; Mochammad Andre Pratama; Gilang Farhanudin; Nadia Mariani; Laskar Surya Aryandi; Dian Mardiana; Herera Hotiah; Rhaesa Fadillah Rahmadani; Ulfa Latifa; Ingrid Multi Rezeki
Kreativitas Pada Pengabdian Masyarakat (Krepa) Vol. 4 No. 11 (2025): Kreativitas Pada Pengabdian Masyarakat (Krepa)
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.8765/krepa.v4i11.12073

Abstract

Artikel ini membahas kegiatan penyuluhan mengenai pemanfaatan daun kelor sebagai inovasi pangan lokal untuk pencegahan stunting yang dilaksanakan oleh Mahasiswa KKN Universitas Swadaya Gunung Jati Desa Panongan, Kecamatan Sedong, Kabupaten Cirebon. Kegiatan ini bertujuan untuk meningkatkan pemahaman ibu-ibu dan kader Posyandu tentang stunting serta kandungan gizi daun kelor. Metode yang digunakan adalah edukasi mengenai dampak stunting dan manfaat daun kelor sebagai sumber nutrisi untuk ibu hamil dan anak-anak. Mahasiswa juga memperkenalkan puding daun kelor sebagai alternatif olahan pangan bergizi. Hasil kegiatan menunjukkan respons positif dari peserta yang tertarik untuk mengaplikasikan daun kelor dalam pola makan keluarga mereka. Kegiatan ini diharapkan dapat membangun kesadaran masyarakat mengenai pentingnya gizi seimbang dalam mencegah stunting dan mendorong pemanfaatan bahan pangan lokal sebagai solusi gizi anak.
ANALYSIS AND DESIGN OF MRT’S CIRCULAR TU Bagus Prayoga; Sumarman Sumarman*; Ingrid Multi Rezeki
Journal of Green Science and Technology Vol 2 No 1 (2018): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v2i1.1168

Abstract

ABSTRACTJakarta MRT was one of solution to solve the traffic jam in Jakarta. There are two physical constructions which serves as the main infrastructure of Jakarta MRT, elevated and underground track. It is not only the first MRT in Indonesia but also, the first large-scale underground works in Jakarta. The physical construction of underground structure became an interesting case to be researched. The use of precast concrete tunnel lining (PCTL) segment was necessary to hold the loads and to provide the space for underground track.In designing the tunnel lining, calculation of the member forces and safety check are necessary to determine the amount of rebar and the dimension, and also to know the value of safety, so, the tunnel lining can be used as the function. According to the guidelines for the design of shield tunnel lining issued by International Tunnelling Association (ITA, 2000), the member forces of tunnel lining could be calculated by (1) Elastic Equation Method, (2) Bedded Frame Method, (3) Finite Element Method (FEM). In this research, the member forces of tunnel lining are calculated using analytical method, without computer program. Therefore, method (1) is used to know the value of each member forces to be used for designing the reinforcement bars. The member forces are analysed for tunnel lining with 6.8 m outer diameters, 1.5 m width and 0.25 m thickness in Jakarta MRT CP106 (Bundaran HI).Based on research which has been done, obtained the maximum values for positive bending moment in the tunnel crown (θ = 0°) is 101.352 kN.m, for negative bending moment in the tunnel axis (θ = 90°) is -281.394 kN.m. In contrary, the value of maximum axial force is in the tunnel axis (θ = 90°) is 1094.538 kN, for minimum axial force is in the tunnel crown (θ = 0°) is 904.674 kN. While, the value of maximum shear force is in (θ = 120°) is 118.740 kN, for minimum shear force is in (θ = 30°) is -66.866 kN. The result of safety checks against member forces in tunnel lining, the value of nominal bending moment multiplied by reduction factor (ϕ · Mn) is 296.263 kN.m, bigger than the value of ultimate bending moment (Mu) is 281.394 kN.m. For the value of nominal shear force multiplied by reduction factor (ϕ · Vn) is 136.095 kN, bigger than the value of ultimate shear force (Vu) is 118.740 kN. While, safety check against thrust force of shield jack obtained the value of maximum compressive stress of concrete segment (𝜎𝑐) is 5.016 MN/m2, bigger than the value of allowable stress (𝜎𝑐𝑎) is 16 MN/m2.Keywords: Jakarta MRT, underground, tunnel lining, member forces, Elastic Equation Method.
Observation Of Clay Settlement Of Consolidation In Petarukan District Pemalang Regency Stabilized By Using Salt (Nacl) Joko Dwi Anjasmoro; Ingrid Multi Rezeki
Journal of Green Science and Technology Vol 3 No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2382

Abstract

Soil stability is an effort made to improve the properties of the origin of the soil, basically stabilization using salt has the same principle as stabilization using other chemicals. Based on the research on native soil combat, the value of 42.25% is categorized into soil types have high plasticity therefore the soil needs repair or stabilization.In this study chemical stabilization was carried out by adding ingredients to stability of salt (Nacl) with a percentage of 4% , 8%, and 12% of the weight of the sample. The research method used is divided into two, namely physical properties test consisting of water content test, density test, atterberg test and filter analysis test and mechanical properties test consisting of compacting test and consolidation test .The results of physical properties test showed that the greater the percentage of NaCl addition in water content, plastic limit, shrinkage limit increased while the specific gravity value, liquid limit, plasticity index and pass filter No. 200 decreased. While in the compaction test the weight value of the maximum dry volume increases and the optimum water content value decreases along with the percentage addition of NaCl. The maximum weight value of maximum dry volume is 1.675 gr / cm3 and the lowest optimum water content is 15.509% in mixed soil with the percentage of addition of 12% NaCl. Meanwhile the consolidation test results showed that the greater percentage percentage of NaCl consolidation coefficient (Cv) increases , while for the Cc index value and the consolidation decrease (Sc) decreases.Keywords : clay soil, Stablizing,Consolidation , salt (NaCl).
Analisis Permeabilitas Beton Dengan Fly Ash dan Abu Batu Alam Sebagai Bahan Substitusi Semen Ingrid Multi Rezeki
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 4 No 4 (2015): JURNAL KONSTRUKSI
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v4i4.2256

Abstract

ABSTRAKPenccmaran udara merupakan masalah yang banyak dialami kota-kota di Indonesia. Udara yang tercemar dapat diakibatkan oleh adanya industri dilingkungan sekitar. Industri pemotongan batu alam dan PLTU di Cirebon menghasilkan fly ash dan abu batu banyak mengandung polutan yang bcrbahaya bagi kesehatan dan lingkungan. Oleh karena itu. perlu dilaksanakan sejauh mana dampak dan pemanfaatan limbah abu batu alam maupun fly ash terhadap lingkungan.Fly ash PLTU Kanci dan abu batu alam Bobos digunakan sebagai substitusi semen pada pembuatan beton. Persentasc pcnambahan substitusi fly ash maupun abu batu adalah 0%. 10%, 20%. dan 30 %. Sampel beton dibuat berbcntuk kubus dengan ukuran 15x15x15 cm. Pcngujian permeabilitas dilakukan saat umur beton 28 hari dengan menggunakan alat permeabilitas sederhana.Nilai persentase rongga udara, persentase lolos air dan kecepatan air pada fly ash sebagai substitusi semen lebih kecil daripada abu batu. Nilai kecepatan air yang diakibatkan fly ash dibawah 0,000022 cnTdet, sedangkan kecepatan air minimum pada abu batu sebesar 0,053 cm/det. Ini menandakan beton yang disubstitusi fly ash akan lebih awet dan tahan lama.Kata Kunci: Fly Ash, Abu Batu, Permeabilitas Beton, ABSTRACTAir pollution is a problem experienced in many cities in Indonesia. Polluted air can be caused by the industrial environment around. Natural stone cutting industry and power plant in Cirebon produce fly ash and stone ash that contains of many pollutants that are harmful for health and the environment. Therefore, research should be carried out the impact and utilization natural stone ash and fly ash on the environment.PLTU Kanci Fly ash and Bobos natural stone used as a substitute for cement in concrete manufacture. The percentage of fly ash and stone ash used to substitution cement is 0%, 10%. 20%, and 30%. Concrete samples made cuboid with the size of 15x15x15 cm'. Permeability’ testing concrete at the age of 28 days with a simple permeability system.The value percentage of air voids, the percentage of water and water velocity in fly ash as a cement substitute smaller than the stone ash. Water velocity value resulting fly ash under 0.000022 cm / sec, while the minimum water velocity in the stone ash of0.053 cm/sec. This indicates that substitutedflv ash concrete will be more durable.Keywords: Fly Ash. Stone ash, Concrete Permeability. 
ANALISIS KERUSAKAN PERKERASAN JALAN KOTA CIREBON JAWA BARAT Kurniasih Kurniasih; Martinus Agus Sugiyanto; Ingrid Multi Rezeki
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 5 No 5 (2016): JURNAL KONSTRUKSI (AGUSTUS 2016)
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v5i5.3810

Abstract

ABSTRAK           Jaringan jalan raya yang merupakan prasarana transportasi dapat memegang peranan yang sangat penting dalam sektor perhubungan, terutama untuk kesinambungan distribusi barang dan jasa maupun orang. Keberadan jalan raya sangatlah diperlukan untuk menunjang laju pertumbuhan ekonomi, pertanian, dan sektor lainnya.Penelitian ini bertujuan untuk mengetahui kerusakan jalan, sehingga bisa ditentukan indeks permukaan atau present serviceability index (PSI). Dalam dilakukan pada 3 (tiga) wilayah ruas jalan kota Cirebon yaitu, ruas jalan Dr. Cipto Mangunkusumo, ruas jalan Benda, ruas jalan Bongo.Pemeliharaan yang dapat dilakukan untuk memperbaiki tingkat layanan jalan antara lain dengan memberi lapis tambahan, memperbaiki drainase, celah diisi campuran aspal dan pasir, serta lapis perkerasan dibongkar dan kemudian dilapis kembali dengan bahan yang sama.Kata Kunci : Ruas Jalan, Kerusakan, PSI.  ABSTRACTRoad traffic is an infrastructure transport can play an important role in the transport sector, notably for the sustainability of goods and services and people. The existence of the highway is needed to support economic growth, agriculture, and other sectors. Study aims to determine the damage to the road, so that the surface can be specified index or present serviceability index (PSI). In performed on three (3) regions ie Cirebon city roads, roads Dr. Cipto Mangunkusumo Benda roads, roads Bongo. Maintenance can be done to improve the level of service roads among others by providing an additional layer, improve drainage, a gap filled mix asphalt and sand, as well as the pavement was dismantled and then re-coated with the same material.Keywords: Roads, Damage, PSI.Â