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Journal articles on the topic 'Vertical pre-fabricated drains'

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1

Thirmanpalli, Sagar, Suresh Kommu, and Srinivas Kadali. "Design of shallow foundation on clayey strata using Ground improvement techniques – A Numerical Study." Journal of Physics: Conference Series 2779, no. 1 (2024): 012064. http://dx.doi.org/10.1088/1742-6596/2779/1/012064.

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Abstract In the construction of engineering structures, deep foundations, such as piles or wells, are commonly employed in continuous clayey soils at considerable depths. However, their utilization is often hindered by the associated high costs and time requirements. Shallow foundations are generally unsuitable due to substantial consolidation settlements. Ground improvement techniques, crucial in contemporary civil engineering projects, offer viable alternatives. Pre-Fabricated Vertical Drains (PVDs) expedite dewatering, accelerating the consolidation process in clayey soils. Additionally, st
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2

Aspara, Wimpie Agoeng Noegroho, and Eka Nur Fitriani. "PENGARUH JARAK DAN POLA PREFABRICATED VERTICAL DRAIN (PVD) PADA PERBAIKAN TANAH LEMPUNG LUNAK = EFFECT OF DISTANCE AND PATTERN OF PREFABRICATED VERTICAL DRAIN FOR IMPROVEMENT OF SOFT CLAY SOIL." Majalah Ilmiah Pengkajian Industri 10, no. 1 (2016): 41–50. http://dx.doi.org/10.29122/mipi.v10i1.102.

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AbstractIf a structure for reasons of technical, economic, social, or startegic is to be built on a soft ground, then there are usually two problems to be solved, namely the low geotechnical bearing capacity and large soil deformation with sometimes differential settlement. Pre-compression is a foundation soil compression process with the provision of temporary loading (preloading) before actually constructing a building. Pre-fabricated vertical drain is a synthetic drainage system installed vertically inside soft soil layers. Soil condition at the project activity is a relatively very
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3

Selamat, N. A., M. N. M.Ansari, Zainudin Yahya, and Ragunatha E.Naicker. "Mechanical Properties of Polypropylene (PP) – Montmorillonite (MMT) Nanocomposites for Pre-Fabricated Vertical Drain (PVD) Application." International Journal of Engineering & Technology 7, no. 4.35 (2018): 689. http://dx.doi.org/10.14419/ijet.v7i4.35.23090.

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Polypropylene (PP) – montmorillonite (MMT) blends were prepared by melt-mixing method followed by injection molding method. The optimum process melt-temperature was set at 1950C, the injection speed of 15cc/s, injection pressure of 30MPa and cooling time of 20 sec. was used for the sample preparation. Investigation shows, addition of MMT nanoparticles have improved the mechanical properties. The tensile test and impact test were conducted at room temperature and atmospheric pressure. The tensile modulus and yield strength improved with increasing MMT content, however, elongation at break was r
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4

Zaki, M., Wardani SPR, and Muhrozi Muhrozi. "PENURUNAN OPRIT JEMBATAN SEMARANG LINGKAR UTARA DAN JEMBATAN KALI JAJAR DEMAK JAWA TENGAH DENGAN PRE-FABRICATED VERTICAL DRAIN." INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) 4, no. 1 (2021): 27. http://dx.doi.org/10.25105/cesd.v4i1.9629.

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<p><em>Construction on soft soil, often creates problems. The Semarang North Ring Bridge and Kali Jajar Bridge are the Recent soft Marine Alluvium zones located in the Pantura area which have very soft soil characteristics with a depth of more than -30.0 meters this has resulted in a very large settlement due to very small grains, flood, rob, pore water pressure increases so that the shear strength of the soil will be small, the compression is large and the permeability coefficient is small so that if the construction load exceeds the critical bearing capacity, the damage to the fo
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5

Ningrum, Hastari Dita, Ririn Anassari, Hartopo Hartopo, and Totok Apriyanto. "ANALISIS DERAJAD KONSOLIDASI PADA PERBAIKAN TANAH DENGAN METODE PRE-FABRICATED VERTICAL DRAIN (PVD) PADA PROYEK PEMBANGUNAN JALAN TOL SEMARANG – DEMAK PAKET 2." Jurnal Teknik Indonesia 3, no. 2 (2022): 43. http://dx.doi.org/10.61689/jti.v3i2.370.

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Soft soil is a type of soil that has low shear strength, small coefficient of permeability, compressibility and low soil bearing capacity. 1-D consolidation theory by Terzaghi (1925), assumes that during the consolidation process the value of the consolidation coefficient (Cv) is constant. Flow is only vertical direction. The analysis carried out is to know magnitude of decline and time required to achieve 90% consolidation. Quantitative data is used to analysis numerical data and calculated using existing formulas. Value of settlement using Terzaghi method and principle of normal consolidatio
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6

Surbakti, Rudianto. "Analisis Penurunan Tanah dengan Plaxis 2D dan 3D Pada Proyek Reklamasi Belawan." Syntax Literate ; Jurnal Ilmiah Indonesia 6, no. 7 (2021): 3511. http://dx.doi.org/10.36418/syntax-literate.v6i7.1532.

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Penurunan tanah adalah masalah yang sering ditemukan pada konstruksi diatas tanah lunak selain pergerakan tanah dan pergeseran tanah. Tanah dengan konsistensi lunak dan memiliki permeabilitas rendah akan lambat mengalirkan air pori dalam tanah sehingga diperlukan penanganan khusus untuk mempercepat prosesnya. Salah satu metode untuk mempercepat proses pengaliran air pori pada tanah dasar yaitu dengan memberikan beban Preloading dan pemancang PVD (Pre-fabricated Vertical Drain). PVD mampu mempercepat keluarnya air pori tanah sehingga proses konsolidasi bisa berlangsung lebih cepat. Data harian
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7

Nur Shidqi, Arif Haidar, Mochamad Agung Wibowo, and Sriyana Sriyana. "OPTIMIZATION OF CHANGES METHODS OF BAMBOO PILES INTO PVD AHMAD YANI AIRPORT PROJECT." CIVED 7, no. 1 (2020): 11. http://dx.doi.org/10.24036/cived.v7i1.108419.

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Rekayasa Nilai (Value Engineering) adalah salah satu teknik untuk mengendalikan biaya yang memiliki potensi keberhasilan cukup besar dengan menggunakan pendekatan analisa nilai terhadap fungsinya. Salah satu cara yang diterapkan menggunakan metode kerja PVD (Pre Fabricated Vertical Drain) karena memiliki waktu yang lebih cepat untuk final settlement, kemudahan dalam metode kerja, dan memberikan peningkatan daya dukung tanah lebih baik. Penelitian ini bertujuan untuk mengetahui Optimasi Perubahan Metode kerja cerucuk bambu menjadi PVD pada pelaksanaan Proyek Pengembangan Bandara Ahmad Yani – Se
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8

Hanun, Amirah, Roesyanto, and Gina Cynthia R. Hasibuan. "Analisis Proses Konsolidasi Dengan PVD Pada Proyek Reklamasi di Samping Tangki CPO Antar Pulau Belawan Berdasarkan Bore Log BH-1." Jurnal Syntax Admiration 4, no. 8 (2023): 1692–701. http://dx.doi.org/10.46799/jsa.v4i8.680.

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In the planning of civil building, construction problems are often encountered in soft soil types, including low soil carrying capacity and large settlements (settlements) when given a load. Soil improvement is needed to speed up the consolidation settlement time. One method that can be applied to speed up the consolidation settlement time is to use a pre-fabricated vertical drain (PVD) and this preloading method is able to increase the shear strength of soft soils and remove pore water in the soil. This research aims to determine the magnitude of settlement of soft soil consolidation using th
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9

Loo, Roger, Anjani Akula, Yosuke Shimura, et al. "(Keynote) Epitaxial Si/SiGe Multi-Stacks: From Stacked Nano-Sheet to Fork-Sheet and CFET Devices." ECS Meeting Abstracts MA2024-02, no. 32 (2024): 2291. https://doi.org/10.1149/ma2024-02322291mtgabs.

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The scaling evolution from stacked nano-sheet devices to fork-sheet devices and CFET architectures went together with increased complexities of the epitaxial growth schemes. This is valid for both the Si/SiGe multi-layers which define the thickness of the nano-sheet channels as well as the vertical distance between individual nano-sheets and also for the epitaxially grown source/drain (SD) layers which require a continuous increase in active doping concentration and a reduction in thermal budget without compromising material quality. Fork-sheet transistors are lateral nano-sheet devices with a
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10

Agarwal, Priyamvada, Ravi Kant Mittal, and Gourav Gill. "Improved Design Procedures for Ground Improvement using Pre- Fabricated Vertical Drains." Indian Journal of Science and Technology 9, no. 46 (2016). http://dx.doi.org/10.17485/ijst/2016/v9i46/105280.

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11

Tao, Quanyang, Ruixia Wu, Xuming Zou, et al. "High-density vertical sidewall MoS2 transistors through T-shape vertical lamination." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-50185-4.

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AbstractVertical transistors, in which the source and drain are aligned vertically and the current flow is normal to the wafer surface, have attracted considerable attention recently. However, the realization of high-density vertical transistors is challenging, and could be largely attributed to the incompatibility between vertical structures and conventional lateral fabrication processes. Here we report a T-shape lamination approach for realizing high-density vertical sidewall transistors, where lateral transistors could be pre-fabricated on planar substrates first and then laminated onto ver
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12

Junaidi, Lalu Muhamad, Eka Priadi, and Slamet Widodo. "PERGERAKAN HORIZONTAL TANAH YANG TERJADI AKIBAT PROSES PERCEPATAN KONSOLIDASI METODE VACUUM + PVD + PHD + PRELOADING PADA PEKERJAAN PERPANJANGAN RUNWAY BANDAR UDARA INTERNASIONAL SUPADIO." Jurnal Teknik Sipil 21, no. 1 (2021). http://dx.doi.org/10.26418/jtsft.v21i1.50469.

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Kondisi tanah yang sangat lunak area Bandara Supadio, pekerjaan perbaikan tanah yang berbatasan langsung dengan runway existing serta metode perbaikan tanah lunak yang menggunakan kombinasi Pre-fabricated Vertical Drain (PVD) + Pre-fabricated Horizontal Drain (PHD) + vacuum + preloading merupakan metode yang belum pernah diaplikasikan pada pekerjaan-pekerjaan diarea Bandara Supadio, maka penulis tertarik untuk melakukan penelitian terhadap dampak pergerakan horizontal yang mungkin terjadi sebagai akibat adanya proses percepatan konsolidasi tersebut. Penelitian dilakukan terhadap dua modul yang
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13

Fiantika, Thiya, Eka Nur Fitriani, Wimpie Agoeng Noegroho Aspar, and Andri Arthono. "Prediction Analysis on Coefficient of Consolidation Values in Improved Soft Clays." Majalah Ilmiah Pengkajian Industri 15, no. 3 (2021). http://dx.doi.org/10.29122/mipi.v15i3.5056.

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Consolidation is a phenomenon in soil mechanics that often causes geotechnical problems. One solution to overcome consolidation phenomena is by speeding up process of pore water pressure dissipation. The type of soil improvement to upgrade the performance of soft clay is by applying pre-fabricated vertical drain (PVD) and pre-compression simultaneously. Geotechnical instrumentations such as settlement plates, piezometers, and inclinometers were installed at the field of study to monitor magnitude of settlement during consolidation process. After the final settlement was achieved, the consolida
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14

Winner, Dofran, Noor Endah, and Putu Tantri Kumala Sari. "Perbaikan Tanah Dasar Menggunakan Pre-Fabricated Vertical Drain Dengan Variasi Kedalaman Dan Perkuatan Lereng Dengan Turap Studi Kasus : Lapangan Penumpukan Peti Kemas, Pelabuhan Trisakti, Banjarmasin, Kalimantan Selatan." Jurnal Teknik ITS 6, no. 1 (2017). http://dx.doi.org/10.12962/j23373539.v6i1.21866.

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15

Gardjito, Edy, and Moh Abduh. "Studi Awal Timbunan Pre-loading dan Struktur Slab On Pile pada Tanah Lunak : Jalan Tol Semarang – Demak Seksi II Sta. 10+690 s/d 27+000." Seminar Keinsinyuran Program Studi Program Profesi Insinyur 1, no. 2 (2021). http://dx.doi.org/10.22219/skpsppi.v2i1.4350.

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Terwujudnya infrastruktur jalan tol tanggul laut Semarang - Demak 27 km dapat mengurangi kemacetan di jalur pantura dan masyarakat di wilayah pesisir Semarang - Demak terbebas dari banjir dan rob. Genangan banjir dan rob di wilayah pesisir Semarang - Demak semakin meningkat luas dari waktu ke waktu, salah satu penyebabnya adalah penurunan muka tanah (land subsidence). Untuk kondisi tanah eksisting di sta.10+690 – sta.27+000, karakteristik tanahnya berupa tanah lempung dan/atau lanau yang termasuk dalam kategori tanah lunak. Penelitian ini menitikberatkan pada perbaikan tanah lunak, yang bertuj
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