文章基本信息

标题：Influence of soil liquefaction on the design bearing capacity of a single pile
其他标题：Влияние разжижения грунтов на расчетную несущую способность сваи
本地全文：下载
作者：Armen Z. Ter-Martirosyan ; Le Duc Anh ; Artur V. Manukyan 等
期刊名称：Vestnik MGSU
印刷版ISSN：1997-0935
电子版ISSN：2304-6600
出版年度：2020
卷号：15
期号：5
DOI：10.22227/1997-0935.2020.5.655-664
语种：English
出版社：Moscow State University of Civil Engineering (MGSU)
摘要：Introduction. Pile foundations are considered one of the most suitable foundation solutions for construction in seismic areas. However, during earthquakes, specific processes often occur that adversely affect the interaction of piles with the surrounding soil. Soil liquefaction is one of the most difficult problems in geotechnical engineering in seismic areas, in which the soil will lose its strength properties. Assessing the effect of soil liquefaction on the design bearing capacity of piles during seismic impacts is an aspect of the design of pile foundations. Materials and methods. Using the formulas in standards documents for determining the design bearing capacity of piles with the suggested new technique on the hypothesis that after the influence of seismic waves and liquefaction, the soil with self-compaction pulls the pile down due to skin friction, i.e. additional downward loads affect upon the piles. Results. Various design cases are considered, with and without taking into account the effect of soil liquefaction on the bearing capacity of piles, under engineering and geological conditions in Ho Chi Minh City, Vietnam. A comparison is presented between the results in the considering various cases. Conclusions. The suggested technique allows to evaluate the reduction in the bearing capacity of piles after soil liquefaction. Further researches on the effect of soil liquefaction on the bearing capacity of piles are one of the main tasks in the design of buildings and structures in seismic areas for reduction in the risk of the catastrophic destruction of the foundations and buildings during and after an earthquake.
其他摘要：Введение. Свайные фундаменты считаются одним из наиболее распространенных решений фундаментов при стро- ительстве зданий и сооружений на слабых грунтах, в том числе в сейсмических районах. Однако при землетрясениях часто происходят специфические процессы,
关键词：soil liquefaction;earthquake;pile foundation;negative friction;seismic effect;the bearing capacity of piles;assessment of the influence of liquefaction;comparative analysis;specific processes
其他关键词：разжижение грунтов;землетрясение;свайные фундаменты;отрицательные трения;сейс-мические воздействия;несущая способность свай;оценка влияния разжижения;сравнительный анализ;специфи-ческие процессы