Retraction notice to “Investigating High-Strength Expanded Polystyrene (HS-EPS) as yielding support elements for tunnelling in squeezing ground conditions” Tunn. Undergr. Space Technol. 118 (2021) 104186 (Tunnelling and Underground Space Technology incorporating Trenchless Technology Research (2021) 118, (S0886779821003771), (10.1016/j.tust.2021.104186))

摘要

? 2022 The Author(s)This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). The authors have requested their article be retracted due to a lack of relevant institutional permissions to publish the article at the time of submission.