垂直顶升法施工全过程顶升力研究

doi:10.13722/j.cnki.jrme.2022.0270

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Abstract The jacking force changes dynamically due to the continuous decreasing height of overburden soil in vertical tunneling method. To study the variation law of jacking force in vertical jacking construction，combined with the spherical cavity expansion theory and shear failure principle，two calculation models of jacking force，spherical cavity expansion-sliding friction model and shear failure-sliding friction model，are proposed，and a new and complete system of theory of jacking force is established. Based on the actual monitoring data of drainage engineering in Beihai and the test data，the correctness and suitability of theoretical calculation formula is verified. The results show that the theoretical calculation method in this paper is in good agreement with the measured results and test data.

Key words： soil mechanics vertical tunneling method jacking force spherical cavity expansion model test face resistance maximum jacking force

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	Articles by authors
	WEI Xinjiang1
	ZHANG Shuyuan2
	WANG Xiao1
	LU Liangliang1
	DING Zhi1

Cite this article:

WEI Xinjiang1,ZHANG Shuyuan2,WANG Xiao1, et al. Research on jacking force during vertical jacking construction#br#[J]. , 2023, 42(S1): 3589-3597.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0270 OR https://rockmech.whrsm.ac.cn/EN/Y2023/V42/IS1/3589

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