关于土体隧道掌子面开挖稳定性的量化探讨

doi:10.13722/j.cnki.jrme.2015.0294

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Abstract The quantitative relationship between the face stability and construction conditions on soil tunnel is introduced. First，an implicit function to strength parameters and construction parameters is proposed by analyzing the safety factor of face stability. The implicit function is transformed to the polynomial expression on construction parameters via multi-function Taylor formula. A technical method of getting the approximate expressions of safety factor of face stability under a single construction parameter is introduced. Mainly，the response surface methodology is used to determine the Taylor expansions of under multiple variables of construction parameters. It illustrated the applications of the proposed methods in ideal tunneling model. Finally，in the Shizilong tunnel project，the results showed that a first-order Fs model of in the initial region of U1 was appropriate，and then gradient ascent method is used to optimized the regional U2. By the central composite design，a validity second-order Fs model is calculated，and the effectiveness was verified by ANOVA.

Key words： tunnelling engineering soil tunnel safety factor of face stability construction parameters multi- function Taylor formula response surface methodology

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	Articles by authors
	HUANG Jun1
	2
	DANG Faning3
	ZHOU Lei3
	DANG Kangning2
	GUO Chanjuan4
	QIN Yuan1

Cite this article:

HUANG Jun1,2,DANG Faning3, et al. The quantitative analysis of the face stability on soil tunnel[J]. , 2016, 35(S1): 3127-3137.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0294 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/3127

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