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1)  super big diameter
超长大直径
1.
Pile bottom pressure casting construction of drilled caisson pile with super big diameter in one super bridge;
某特大桥超长大直径钻孔灌注桩桩底压浆施工
2)  huge cylindraceous workpiece
大直径超长管件
1.
It is generally regarded as a focus in the field of geometric metrology to evaluate cylindricity for inside diameter of huge cylindraceous workpiece.
针对大直径超长管件内径圆柱度误差测量与评定这一计量领域的研究难点,提出了基于高精度光电传感器的误差分离思想,给出测量系统的总体结构设计和具体的测量评定过程,并对测量过程中的误差因素做了详细分析。
3)  extra long and large diameter pile groups
超长大直径群桩
1.
Based on Mindlin displacement solution,the formulas for settlement of 18 and 64 extra long and large diameter pile groups are deduced according to the hypotheses that resistance to pile end is concentrated force and skin friction of pile is linear increasing distributed force.
针对18根和64根超长大直径群桩基础,采用Mindlin位移解,假定桩端阻力为集中力和桩侧摩擦阻力呈向下线性增加分布形式后,推导出沉降计算公式。
4)  overlength large diameter pile
超长大直径桩
1.
Study on effect of base grouting on shaft friction of overlength large diameter pile;
桩端压浆对超长大直径桩侧阻力的影响研究
2.
Study of deformation characteristics of overlength large diameter piles
超长大直径桩的变形特性研究
5)  large diameter overlength pile
大直径超长桩
1.
Test study and finite element analysis of bearing behavior of large diameter overlength piles after grouting;
大直径超长桩压浆后承载性能的试验研究及有限元分析
6)  Super-long large-diameter pile foundation
大直径超长桩基
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。 

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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