jacking force

the closure jacking force and the performance after jacked of continuous rigid frame bridge

连续刚构桥顶推力计算方法及受力性能分析

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theoretically, the jacking force can be enhanced arbitrarily, so the jacking distance can reach arbitrary length.

从理论上讲，千斤顶的顶力可以任意进步，从而也能达到任意长度的推顶间隔。

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relation between jacking force and jacking path in pipe-packing construction and analysis on the influence factors

顶管施工中顶力与顶程关系及其影响因素分析

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the confirmation closure jacking force of continuous rigid frame bridge

连续刚构桥合龙顶推力的确定

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By setting up mechanical model, the relationship of curve radius, jacking force and effect factors such as pipe diameter, length of pipe section, thickness of wooden piece, elasticity of material and the difference of jack displacement is investigated.

通过建立力学模型对曲线路线半径R、顶推力P和影响因素如管径D、管节长L、木垫片厚a、材料弹性模量E以及工具管油缸行程差（b-c）等的关系进行推导。

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by controlling jacking force and jacking axes, the jacking construction is finished successfully.

通过对顶力和顶进轴线的控制，保证了顶进工作的顺利进行。

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analysis on jacking force of glass reinforced plastic mortar pipe with heavy caliber and its application

大口径玻璃钢夹砂管的顶力分析与应用

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In addition, for large displacement, the column suffered on the top edge, if the anchor role of downhole tools anti jacking force is not enough, which may result in the column movement of fracturing failure.

另外，排量大，管柱所受的上顶力就大，如果起锚定作用的井下工具抗上顶力不够，可能会导致管柱移动而导致压裂失败。

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Considering in-situ test jacking force, calculation for jacking force is studied theoretically under the condition of mudstone, and jacking force calculation formulary is deduced by the linear regression.

结合顶管工程现场实测数据，对泥岩地质条件下顶推力的计算进行了理论分析，并通过一元线性回归得出在该地质条件下顶推力计算的经验公式。

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Computational simulation of jacking force based on spherical cavity expansion theory and friction fatigue effect

基于球孔扩张理论和侧阻力退化效应的压桩力计算模拟

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