大直徑挖孔擴(kuò)底樁原型試驗(yàn)及承載力確定
田再琦 武秀彥 王正秋
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田再琦 武秀彥 王正秋
（哈爾濱建筑大學(xué)建筑設(shè)計(jì)研究院 150006）[提要] 結(jié)合工程實(shí)踐，在同一場地進(jìn)行四組（其中純摩擦一組，端承一組，摩擦端承綜合二組）大直徑擴(kuò)底樁極限承載力原型試驗(yàn)，以確定單樁豎向承載力設(shè)計(jì)參數(shù)，并對摩擦端承樁型的受力機(jī)理進(jìn)行了分析研究。
[關(guān)鍵詞] 挖孔擴(kuò)底樁 原型試驗(yàn) 極限承毅力Ultimate strength of the large diameter pile with bulb shaped base is tested in a site of a practical engineering. The tests include a group of pure friction piles, a group of end bearing piles and two groups of piles with both friction and end bearing. Designing parameters of the longitudinal strength are determined. Also, the behaviors of the friction and end bearing pile are analysed.
Keywords: pile with bulb shaped base; test in site, longitudinal ultimate strength
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