摘要 关键词］整体移位；滚动摩擦系数；现场实验；牵引力；顶推力 [gap=782]ywords:integer shift; rolling friction coefficient; locate experiment; traction; jacking force
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... 侧推力 side thrust; thrust 顶推力 jacking force; pushing force 动推力 dynamic thrust; dynamical thrust; dynamicalthrust ...
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推顶力 ejection force
顶针推力/行程 Ejector Force/Stroke
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尾座顶心之推力 THRUST FORCE
More reasonable method for jacking force has been raised. The theoretical computing formulae of linear and curved pipe jacking have been deduced; then an experienced formula of linear pipe jacking is presented.
本文在现有的顶推力理论、试验成果和计算方法的基础上，研究了直线、曲线及超长距离顶管施工中顶推力的变化规律；提出了更加合理的顶推力计算方法；推导出直线顶管及曲线施工中顶推力的理论解；并给出了直线顶管施工中的一个经验公式；最后采用有限元法分析了曲线顶管施工对管节和周围土体的影响效应。
参考来源 - 直线及曲线顶管施工中的顶推力研究But the jacking force is supported by the pipe, and the bearing capacity of pipe is limited, meanwhile the supporting pit is aim at economic saving.
但因千斤顶产生的顶力必须全部由管子来承受,而管子的承载能力是有限的,同时顶压坑承载力从经济性出发也是以节省为主,过大的顶推力势必要增加管材和顶压坑的承载力,从而增加投资及技术措施费用。
参考来源 - 顶管工程施工中关键性技术环节的控制·2,447,543篇论文数据，部分数据来源于NoteExpress
对我国现有3套顶管机进行了顶推力计算，对主电机容量进行了校验。
Pushing force calculation and main motor capacity calibration are conducted for the three push bench pipe mills currently used in the country.
从触变泥浆减摩技术和中继接力技术两个方面对超长距离顶管施工中的顶推力进行了研究。
From the technology of reducing friction slurry and the relay jacks, the jacking force of long pipe jacking has been analyzed.
管道失稳是由于管道周围土体提供的抵抗力矩小于偏心顶推力而产生的扭转力矩，造成管节偏离设计轴线。
When the resistive moment of surrounding soil is less than the torsional moment of eccentric jacking force, stability failure of pipeline occurs and pipes deviates from the designed axes.
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