ДЕФОРМАЦИИ ВЕРТИКАЛЬНОЙ ПОДПОРНОЙ КОНСТРУКЦИИ, СВЯЗАННЫЕ С КОЛЕБАНИЯМИ ТЕМПЕРАТУРЫ, НА ОТСЫПАННОМ ЛЕССОВОМ СКЛОНЕ Deformation characteristics of the vertical support structure in a high-filled loess slope associated with temperature fluctuation: a case study in Lingbao, China

Kaihong Wei, Xiangjun Pei, Shishu Zhang, Congyan Ran, Huabo Xiao, Tiantao Li

Аннотация


Описывается мониторинг деформаций (осадки, изгиб свай и растрескивание конструкции) заанкеренной стенки из свай с плитами высотой 40 метров, устроенной для удержания склона, сложенного насыпным лессовым грунтом. Использованы традиционные геодезические методы и современные технологии фиксации и измерения трещин в теле конструкции. Синхронно с измерениями деформаций выполнялись измерения температуры. Установлена согласованность изменений во времени измеряемых локальных деформаций и температурных колебаний, а также показано, что перемещения, прогнозируемые по простым соотношениям термоупругости, хорошо совпадают с измеренными величинами. Проанализированы факторы, влияющие на деформации конструкции стенки. Хотя температурные деформации, достаточно очевидно, не могут привести к потере устойчивости конструкции, они нарушают ее эксплуатационную пригодность, вызывая образование трещин и появление течи в теле стенки.

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering” vol.58, No.5


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