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1)  large diameter belled pile
大直径扩底桩
1.
Study on modifying coefficient of end-bearing resistance of large diameter belled piles;
大直径扩底桩端阻力折减问题探讨
2.
The results obtained by this method fit well with the field test results, and the potential bearing capacity of large diameter belled pile can be utilized fully, so it can be used as a reference in engineering design.
鉴于现有承载力确定方法存在的不足之处 ,通过对大直径扩底桩承载力确定原则的探讨 ,给出了按沉降变形控制确定承载力的方法 ,并推导出了确定无静载试验桩承载力的计算公式 。
2)  under reamed bore piles with large diameter
大直径挖孔扩底桩
1.
Form the result of static load tests for single pile, the shape of load versus sinking curve, the distribution of axial force along piles body and the function of friction resistance force around piles for under reamed bore piles with large diameter taking gravel ground as support of piles end are studied.
根据单桩静载荷试验的结果 ,分析了以卵石层为桩端持力层的大直径挖孔扩底桩的荷载—沉降曲线类型、桩身轴力的分布特征及桩侧摩阻力的发挥性状 ,并对其承载性能进行了研究。
3)  large diameter bulb pile constructed by manual excavation
人工挖孔大直径扩底桩
4)  cast-in-place large-diameter extensional rocked pile
大直径扩底嵌岩灌注桩
5)  large-diameter cast-in-situ piles with enlarged bases
大直径挖孔扩底灌注桩
1.
Application of large-diameter cast-in-situ piles with enlarged bases in cement plant
大直径挖孔扩底灌注桩在水泥厂的应用
6)  large diameter cast-in-place belled pile
大直径扩底灌注桩
1.
Experimental study on bearing capacity behavior of deep large diameter cast-in-place belled pile
深长大直径扩底灌注桩承载性能试验研究
补充资料:当量比表面直径、表面积体积平均直径
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性质:又称当量比表面直径、表面积体积平均直径。是颗粒群表面积分布的平均直径。其意义为与颗粒群的粒形相同,总体积相同、总表面积相同,且粒度均匀的一个假想颗粒群的粒度。亦即指与该颗粒群的粒形相同,比表面积相同的一个颗粒的粒度。 

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