TEST STUDY OF DX PILES WITH THREE AND FOUR BULBS AT NBZK ELECTRIC POWER PLANT IN INNER MONGOLIA
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摘要: 通过现场静荷载试验,对以硬塑黏土和坚硬黏土为承力盘和桩端持力层的三节和四节DX挤扩灌注桩以及以砾砂为桩端持力层的直孔灌注桩的极限承载力进行判定,分析荷载传递机理,并对桩侧阻力、盘端阻力和桩端阻力的分配及发展规律进行研究。Abstract: Static loading tests for DX piles with three and four bulbs installed in hard clay and stiff clay also for uniform bored pile installed in gravel sand were conducted in field. The ultimate bearing capacities are determined, and the load transfer mechanism is analysed, and the distribution and development of the skin-friction resistances, the bulb resistances and the tip resistances of DX piles of this kind are studied.
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[2] .沈保汉, 王海燕, 刘振亮, 等. 西安SXD工程4节承力盘DX挤扩灌注桩的试验研究[J]. 工业建筑,2009(2):1-7. .沈保汉, 贺德新.DX 挤扩灌注桩与DX 液压挤扩装置[J]. 工业建筑, 2008(5): 1-4. [3] .沈保汉. DX挤扩灌注桩竖向抗压极限承载力的确定[J]. 工业建筑, 2008(5): 13-17, 27.
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