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المؤلفElzeiny, Rehab
المؤلفSuleiman, Muhannad T.
المؤلفXiao, Suguang
المؤلفQamar, Mu’Ath Abu
المؤلفAl-Khawaja, Mohammed
تاريخ الإتاحة2024-04-22T11:15:34Z
تاريخ النشر2020-01-14
اسم المنشورCanadian Geotechnical Journal
المعرّفhttp://dx.doi.org/10.1139/cgj-2019-0143
الاقتباسElzeiny, R., Suleiman, M. T., Xiao, S., Qamar, M. A. A., & Al-Khawaja, M. (2020). Laboratory-scale pull-out tests on a geothermal energy pile in dry sand subjected to heating cycles. Canadian Geotechnical Journal, 57(11), 1754-1766.
الرقم المعياري الدولي للكتاب0008-3674
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85094668319&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/54064
الملخصGround source heat pumps coupled with energy piles operate intermittently, subjecting the piles to temperature cycles throughout their lifetime. The research presented in this paper focuses on studying the thermomechanical behavior of energy piles subjected to heating cycles. Laboratory model tests were performed at the soil-structure interaction (SSI) facility at Lehigh University. A fully instrumented model energy pile, embedded in dry sand, was subjected to different number of heating cycles followed by axial pull-out loading. Baseline (room temperature), five heating cycles (5HC), and 100 heating cycles (100HC) tests are reported in this paper. The soil was instrumented with temperature sensors and pressure sensors, while the pile was instrumented with temperature sensors, strain gauges, and pressure sensors. The test results showed that the peak pull-out loads for the baseline, 5HC, and 100HC were 2794 N, 3633 N (30% higher than baseline), and 3559 N (27% higher than baseline), respectively. It was also found that subjecting the pile to large number of daily heating cycles induced small degradation in the load transfer or the peak pull-out load in dry sand.
راعي المشروعThe work described in this paper was part of a research program on geothermal energy piles funded by National Priority Research Program of Qatar (project number: NPRP 7-725-2-270).
اللغةen
الناشرNational Research Council of Canada
الموضوعHeating cycles
Model energy pile
Pile–soil radial pressures
Pull-out tests
Soil–pile interaction
Thermal radial expansion
العنوانLaboratory-scale pull-out tests on a geothermal energy pile in dry sand subjected to heating cycles
النوعArticle
الصفحات1754-1766
رقم العدد11
رقم المجلد57
ESSN1208-6010
dc.accessType Abstract Only


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