Method for estimating inrush disaster intensity of equivalent deep-buried tunnel section
The invention discloses a method for estimating the inrush disaster intensity of an equivalent deep-buried tunnel section, which comprises the following steps: an equivalent deep-buried tunnel sectionis determined, the equivalent deep-buried tunnel section is divided and assigned, and inrush intensi...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
14.09.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a method for estimating the inrush disaster intensity of an equivalent deep-buried tunnel section, which comprises the following steps: an equivalent deep-buried tunnel sectionis determined, the equivalent deep-buried tunnel section is divided and assigned, and inrush intensities of each subarea and the section are calculated; a datum equivalent section is determined and an equivalent deep-buried tunnel section inrush intensity estimation formula is proposed, and three types of unit sections, i.e., a non-inrush section, a transition section and a potential inrush section, are established according to the inrush intensity of the section; the water pressure, surrounding rock strength and surrounding rock particle adjustment coefficient of each tunnel subarea are acquired by survey and experiment, the water pressure and surrounding rock strength data are used for working out the inrush source shape coefficient and inrush intensity of each subarea, the equivalent deep-buried tunnel section |
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Bibliography: | Application Number: CN20181237591 |