Volume 67, Issue 9, September 2019

Articles

• Mechanical Wear of Cutters in Tunnel Boring Machines – A Comprehensive Review

  Suraj Deshmukh, A.K. Raina, Prashant Pandey, R. Vajre, R. Trivedi, V.M.S.R. Murthy (Author)

  391-402

  Keywords:

  Factors that determine the selection of method to excavate a tunnel depend upon the geology, economy and site conditions,but when it comes to the economics of tunnelling then it has to be chosen correctly as per the methodology. Cutters are an integral part of a tunnel boring machine and its performance depends largely on these. In order to ascertain various factors of cutters that influence the performance of the machine, a comprehensive study of literature was carried out. The method involved referencing the citations to a particular publication from which the importance of factors responsible for cutter wear in TBM were decided. In order to categorise the impact of different variables on cutter wear, the references were divided into wear, mechanical, geological and engineering categories based on citations reviewed and observed. Cutting conditions of disc cutters has been reviewed and evaluated based on findings of different authors.

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  Abstract views: 96 times| Download: 134 times|

• Non-Linear Dynamic Support Optimization Method for Non-Uniform Pressure Circular Tunnel Considering the Effect of Damage

  Liang Chen, Xianbiao Mao, Peng Wu (Author)

  403-415

  Keywords:

  Elastoplastic solution; circular tunnel; nonlinear Hoek-Brown criterion; lateral pressure coefficient; ground response curve

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  Abstract views: 52 times| Download: 30 times|

• Assessment and Review of Maintenance Practices in the 4th Industrial Revolution using the Cognitive Analytics Framework

  Niraj R. Sharma, A.K. Mishra, Hemant Agrawal (Author)

  416-423

  Keywords:

  Equipment; industrial revolution; breakdown; AI; industry 4.0; cognitive

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  Abstract views: 62 times| Download: 29 times|

• Prospect of Middle Ordovician Yanxi Formation Black Shale in South Hunan Province

  Li Zhiwen, Guo Jianhua (Author)

  424-430

  Keywords:

  Middle Ordovician, Yanxi formation, shale gas, sedimentary evolution.

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  Abstract views: 32 times| Download: 29 times|

• Modelling of Dragline Boom Structure

  Asit Shukla, Piyush Rai (Author)

  431-436

  Keywords:

  Dragline boom, boom foot weldment, boom point, static conditions, finite element method (FEM).

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  Abstract views: 53 times| Download: 19 times|