Evaluation of soil abrasivity for soft ground TBM tunnelling applications

Ghodrat Barzegari, A. Uromeihy, J. Zhao

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

The importance of ground abrasivity on the performance of tunnel boring machine (TBM) is clear subject for most of projects dealing with tunneling operations. Evaluation of soil abrasivity is one of the most challenges in soft ground TBM tunnelling. In recent years many abrasivity devices were developed to measure the soil abrasion potentials for a specific site conditions. In this paper a new device is developed on the base of simulating the real site condition to estimate the abrasivity of the soil particles for a mechanized tunnelling using shielded TBM application and the influence of some parameters on soil abrasivity was investigated by use of LCPC (developed by the Laboratoire Central des Ponts et Chaussées) and new developed device (NDD). The results indicates that by increasing of soil particle size, bentonite slurry, soil pressure and equivalent quartz content, the abrasivity of soil tend to be increased. The influence of water on abrasivity is not the same in all of the soil types. By increasing of water pressure, the abrasivity of soil decreased.

Original languageEnglish
Title of host publicationUnderground - The Way to the Future: Proceedings of the World Tunnel Congress, WTC 2013
PublisherCRC Press
Pages1187-1194
Number of pages8
ISBN (Print)9781138000940
Publication statusPublished - 2013
Externally publishedYes
EventWorld Tunnel Congress (WTC) / General Assembly of the International-Tunnelling-and-Underground-Space-Association (ITA) 2013: Underground - The Way to the Future - Geneva, Switzerland
Duration: 31 May 20137 Jun 2013
Conference number: 39th
http://www.tunnel-online.info/en/artikel/tunnel__1797134.html

Conference

ConferenceWorld Tunnel Congress (WTC) / General Assembly of the International-Tunnelling-and-Underground-Space-Association (ITA) 2013
Abbreviated titleWTC 2013
CountrySwitzerland
CityGeneva
Period31/05/137/06/13
Internet address

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