Thrust and torque components on mixed-face EPB drives

González Paez, Claudia; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio

doi:10.1016/j.tust.2016.01.037

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González Paez, Claudia

Arroyo Alvarez de Toledo, Marcos

Gens Solé, Antonio

Document typeArticle

Date issued2016-08

Rights accessOpen Access

Abstract

In this communication we propose a method to estimate net thrust and torque applied at the excavation front by cutting tools from EPB machines when they are working in mixed faces constituted by soils and soft rock. The method is inspired by similar simplifications used for the analysis of TBM drives in rock. The proposal is validated using a database of EPB registers which were gathered from more than 35 km of tunnel drives excavated in soils, soft rock and heterogeneous media. The results allow us to assess the influence of the type of ground excavated and its geotechnical properties on the net thrust and torque applied.

CitationGonzález, C., Arroyo, M., Gens, A. Thrust and torque components on mixed-face EPB drives. "Tunnelling and underground space technology", Agost 2016, vol. 57, p. 47-54.

URIhttp://hdl.handle.net/2117/106052

DOI10.1016/j.tust.2016.01.037

ISSN0886-7798

Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0886779815301814