Situ Testing Study on Jacking Force of Manual Pipe-Jacking with Engineering

Abstract:

Manual rectangle pipe-jacking technology is adopted to jack the pre-fabricated hollow box girder slowly and evenly into the load bearing wall of masonry structure, and then core beam is poured to form a whole, therefore, the constructions will be gradually located at a “tray” with enough rigidity, which solves the structural damage caused by inadequate bearing capacity of foundation soil or unsymmetrical support. In actual masonry structure protection, there have been successful examples where such technology is used, however, till now its related fundamental problems have not been researched yet. In this paper, based on study of on-site actual measurement, its fundamental is introduced, such items as action mechanism of box girder and soil body, calculation of jacking force and its influencing factors, and more, are discussed and empirical formula for calculation of jacking force is presented.

• Periodical: Advanced Materials Research (Volume 676)
• Pages: 70-75
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.676.70
• Online since: March 2013
• Authors: Zhuan Yun Yang, Li Yun Yi
• Keywords: Jacking Thrust, Manual Pipe-Jacking, Masonry Structure, Under Pinning

References

[1] An,G.F., Yin K.L.and Tang,H.M: Discrimination and analysis of formulae for jacking forces in pipejacking . J. Rock and solid mechanics. Jun(2002), pp.358-361

[2] Fang Y.G., Mo,H.H.and Zhang,CH.Y: Theoretic and testing analysis of solid deformation in the area of disturbance caused by pipe-jacking. J. Chinese Journal of Rock Mechanics and Engineering, Apr(2003), pp.601-605

[3] Huang H.W., &Hu.X: 3D Numerical analysis on construction mechanics effect of pipe-jacking. J. Chinese Journal of Rock Mechanics and Engineering, Mar(2003), pp.400-406.

[4] Xian,D.ZH., Wang,T.CH.and Bian,ZH.H: New construction technologies of integral lifting of Kunming Jin gang towe, J. Construction Technology, Aug(2005), pp.17-19.