Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts
Consolidation tests have been performed to determine the mechanical properties of crushed salt as affected by applied stresses and consolidation period. The crushed salt with particle sizes ranging from 0.075 to 4.76 mm mixed with 5% saturated brine are consolidated under axial stresses ranging fr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Prince of Songkla University
2018-04-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | http://rdo.psu.ac.th/sjstweb/journal/40-2/40-2-25.pdf |
| _version_ | 1818265621318598656 |
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| author | Supattra Khamrat Kittitep Fuenkajorn |
| author_facet | Supattra Khamrat Kittitep Fuenkajorn |
| author_sort | Supattra Khamrat |
| collection | DOAJ |
| description | Consolidation tests have been performed to determine the mechanical properties of crushed salt as affected by applied
stresses and consolidation period. The crushed salt with particle sizes ranging from 0.075 to 4.76 mm mixed with 5% saturated
brine are consolidated under axial stresses ranging from 2.5 to 10 MPa. The consolidation curves show instantaneous and
transient creep strains. Densities, uniaxial compressive strengths and elastic moduli measured after consolidation for 3 to 180
days increase with the applied stresses and duration due to the particle rearrangement and recrystallization. The crushed salt
properties are calculated as a function of mean strain energy required during consolidation. The opening depth and the time at
which the crushed salt backfill is installed are significant factors controlling its long-term density, strength and stiffness. |
| first_indexed | 2024-12-12T19:53:43Z |
| format | Article |
| id | doaj.art-4cde8019ac2c44f6a57802f16b10a739 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-12T19:53:43Z |
| publishDate | 2018-04-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-4cde8019ac2c44f6a57802f16b10a7392022-12-22T00:13:56ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952018-04-0140243043810.14456/sjst-psu.2018.52Mechanical performance of consolidated crushed salt as backfill in boreholes and shaftsSupattra Khamrat0Kittitep Fuenkajorn1Geomechanics Research Unit, Institute of Engineering, Suranaree University of Technology, Mueang, Nakhon Ratchasima, 30000 ThailandGeomechanics Research Unit, Institute of Engineering, Suranaree University of Technology, Mueang, Nakhon Ratchasima, 30000 ThailandConsolidation tests have been performed to determine the mechanical properties of crushed salt as affected by applied stresses and consolidation period. The crushed salt with particle sizes ranging from 0.075 to 4.76 mm mixed with 5% saturated brine are consolidated under axial stresses ranging from 2.5 to 10 MPa. The consolidation curves show instantaneous and transient creep strains. Densities, uniaxial compressive strengths and elastic moduli measured after consolidation for 3 to 180 days increase with the applied stresses and duration due to the particle rearrangement and recrystallization. The crushed salt properties are calculated as a function of mean strain energy required during consolidation. The opening depth and the time at which the crushed salt backfill is installed are significant factors controlling its long-term density, strength and stiffness.http://rdo.psu.ac.th/sjstweb/journal/40-2/40-2-25.pdfstrain energyconsolidationcrushed saltbackfillrecrystallization |
| spellingShingle | Supattra Khamrat Kittitep Fuenkajorn Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts Songklanakarin Journal of Science and Technology (SJST) strain energy consolidation crushed salt backfill recrystallization |
| title | Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| title_full | Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| title_fullStr | Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| title_full_unstemmed | Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| title_short | Mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| title_sort | mechanical performance of consolidated crushed salt as backfill in boreholes and shafts |
| topic | strain energy consolidation crushed salt backfill recrystallization |
| url | http://rdo.psu.ac.th/sjstweb/journal/40-2/40-2-25.pdf |
| work_keys_str_mv | AT supattrakhamrat mechanicalperformanceofconsolidatedcrushedsaltasbackfillinboreholesandshafts AT kittitepfuenkajorn mechanicalperformanceofconsolidatedcrushedsaltasbackfillinboreholesandshafts |