ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED
Liquefaction phenomenon could be analysed using strain-controlled loading method where informations about sands pore water pressure build-up were presented. Maintaining small deformation values whenever the soil was subjected to cyclic loading, this non-destructive method presents clearly the inform...
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Universitas Negeri Semarang
2015-01-01
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| Series: | Jurnal Teknik Sipil dan Perencanaan |
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| Online Access: | https://journal.unnes.ac.id/nju/index.php/jtsp/article/view/6896 |
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| author | Rini Kusumawardani Lashari Untoro Nugroho Hanggoro Tri Cahyo A |
| author_facet | Rini Kusumawardani Lashari Untoro Nugroho Hanggoro Tri Cahyo A |
| author_sort | Rini Kusumawardani |
| collection | DOAJ |
| description | Liquefaction phenomenon could be analysed using strain-controlled loading method where informations about sands pore water pressure build-up were presented. Maintaining small deformation values whenever the soil was subjected to cyclic loading, this non-destructive method presents clearly the information about the increasing sands pore water pressure. It is concluded that liquefaction occurs whenever the pore water pressure reaches the same value with the soil effective stress (?3). Strain-controlled loading method introduces a fundamental parameter for undrained cyclic loading tests on fully saturated sands: shear strain treshhold (?t). This parameter divides the pore water pressure into two distinct zones, namely the constant pore water pressure and the increasing one. When cyclic shear strain amplitude (?) is set up lesser than ?t then pore water pressure stays constant. Contrastly, a larger set up of ? than ?t results the increasing pore water pressure. Laboratory test on clean sand using relative density (Dr) 25%, 60 % and 80%, with effective pressure ?3 = 100 kPa and frequency (f) applied 0.05 Hz and 0.1 Hz, shows that ?t = 1,5. 10-2 %. Whilst other test using Dr = 60% and f = 0.1 Hz confirms that ?t = 1,5. 10-2 % (50 ? ?3 (kPa) ? 100) and ?t = 5. 10-2 % (?3 = 200kPa). Last test using Dr = 60% and f = 0.05 Hz reveals ?t = 1,2. 10-2 % (50 ? ?3 (kPa) ? 100) and ?t = 2. 10-2 % (?3 = 200kPa). |
| format | Article |
| id | doaj-art-ff82257d255e4bc7a3fd28e71a7ce112 |
| institution | DOAJ |
| issn | 1411-1772 2503-1899 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Universitas Negeri Semarang |
| record_format | Article |
| series | Jurnal Teknik Sipil dan Perencanaan |
| spelling | doaj-art-ff82257d255e4bc7a3fd28e71a7ce1122025-08-20T03:06:13ZengUniversitas Negeri SemarangJurnal Teknik Sipil dan Perencanaan1411-17722503-18992015-01-011716372ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLEDRini Kusumawardani0Lashari1Untoro Nugroho2Hanggoro Tri Cahyo A3Universitas Negeri SemarangUniversitas Negeri SemarangUniversitas Negeri SemarangUniversitas Negeri SemarangLiquefaction phenomenon could be analysed using strain-controlled loading method where informations about sands pore water pressure build-up were presented. Maintaining small deformation values whenever the soil was subjected to cyclic loading, this non-destructive method presents clearly the information about the increasing sands pore water pressure. It is concluded that liquefaction occurs whenever the pore water pressure reaches the same value with the soil effective stress (?3). Strain-controlled loading method introduces a fundamental parameter for undrained cyclic loading tests on fully saturated sands: shear strain treshhold (?t). This parameter divides the pore water pressure into two distinct zones, namely the constant pore water pressure and the increasing one. When cyclic shear strain amplitude (?) is set up lesser than ?t then pore water pressure stays constant. Contrastly, a larger set up of ? than ?t results the increasing pore water pressure. Laboratory test on clean sand using relative density (Dr) 25%, 60 % and 80%, with effective pressure ?3 = 100 kPa and frequency (f) applied 0.05 Hz and 0.1 Hz, shows that ?t = 1,5. 10-2 %. Whilst other test using Dr = 60% and f = 0.1 Hz confirms that ?t = 1,5. 10-2 % (50 ? ?3 (kPa) ? 100) and ?t = 5. 10-2 % (?3 = 200kPa). Last test using Dr = 60% and f = 0.05 Hz reveals ?t = 1,2. 10-2 % (50 ? ?3 (kPa) ? 100) and ?t = 2. 10-2 % (?3 = 200kPa).https://journal.unnes.ac.id/nju/index.php/jtsp/article/view/6896threshold shear straindynamic loadingliquefactionpore water pressuresandthreshold cyclic shear strain |
| spellingShingle | Rini Kusumawardani Lashari Untoro Nugroho Hanggoro Tri Cahyo A ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED Jurnal Teknik Sipil dan Perencanaan threshold shear strain dynamic loading liquefaction pore water pressure sand threshold cyclic shear strain |
| title | ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED |
| title_full | ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED |
| title_fullStr | ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED |
| title_full_unstemmed | ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED |
| title_short | ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED |
| title_sort | analisis kenaikan tekanan air pori clean sand menggunakan metode cyclic shear strain controlled |
| topic | threshold shear strain dynamic loading liquefaction pore water pressure sand threshold cyclic shear strain |
| url | https://journal.unnes.ac.id/nju/index.php/jtsp/article/view/6896 |
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