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المؤلفElzeiny R.
المؤلفSuleiman M.T.
المؤلفQamar M.A.
المؤلفXiao S.
المؤلفAl-Khawaja M.
تاريخ الإتاحة2020-03-29T12:12:12Z
تاريخ النشر2018
اسم المنشورGeotechnical Special Publication
المصدرScopus
الرقم المعياري الدولي للكتاب8950563
معرّف المصادر الموحدhttp://dx.doi.org/10.1061/9780784481578.067
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13529
الملخصEnergy piles support structural loads and exchange heat with surrounding soils using closed-loop ground source heat pump (GSHP) systems. A GSHP connected to an energy pile operates in cycles where it functions for a period of time (running time) then stops for another period of time (stoppage time). This intermittent operation of the GSHP subjects the piles and surrounding soil to changes in temperature and to temperature cycles introducing challenges to foundation design. The research presented in this paper focuses on evaluating the effects of thermal cycles on the soil temperature and soil-pile interaction. In order to investigate these effects, an instrumented concrete energy pile with diameter of 101.6 mm and length of 1.383 m was subjected to different thermal cycles and tested under pull-out loading at the soil-structure interaction (SSI) facility at Lehigh University. In this paper, results from two pile tests are presented. Axial pull-out response of a pile subjected to five thermal cycles was compared to the response of a pile subjected to pull-out loading at room temperature. It was observed that the pile subjected to thermal cycles had an ultimate shaft resistance that is 28% greater than that of the pile tested at room temperature.
راعي المشروعThis work was made possible by an NPRP 7-725-2-270 grant from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.
اللغةen
الناشرAmerican Society of Civil Engineers (ASCE)
الموضوعground source heat pump (GSHP)
soil-structure interaction (SSI)
العنوانAxial pull-out response of a small-scale concrete pile subjected to cyclic thermal loading in sand
النوعConference Paper
الصفحات706-714
رقم العددGSP 294
رقم المجلد2018-March
dc.accessType Abstract Only


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