矩形箱涵拉顶式施工中掘进机头拉力的计算

Calculation of Pulling Force of Boring Head in Rectangular Box Culverts Jacking-pulling Construction

摘要:

系统地介绍了矩形箱涵拉顶式施工中，掘进机头轴线方向的倾侧纠偏、机头顶进间歇防回缩所需的拉力的计算方法，并通过工程实例印证。根据理论分析和相应的计算公式可以得出矩形箱涵采用“拉顶式”工艺施工时，在其接受井内配置的拉力较为精确的计算结果，并能满足实际工程的需要。

Abstract:

The paper systematically introduced the calculation method of pulling force in axial direction deviation rectification of boring head and retraction control during boring intermittent in rectangular box culverts jacking-pulling construction with engineering example. Based on the theoretical analysis and relative calculation formula, accurate results can be obtained for jacking-pull construction with rectangular box culverts.