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Ground Supoort 4 Deep Excavation PDF

34 Pages·2017·English
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by ['Parmeshwar Kushwaha']| 2017| 34 pages| English

About Ground Supoort 4 Deep Excavation

This document discusses ground support for deep underground excavations in highly stressed brittle rock. It notes that stress-driven rock mass failure such as ravelling and strainbursting can slow tunneling progress. Robust engineering is needed to properly anticipate rock mass behavior, choose appropriate excavation methods, and provide flexible yet reliable ground control. When failure processes dominate, conventional support based on rock mass ratings is limited and does not account for mining-induced stresses. Instead, support needs to control bulking of broken rock and yield to deformations. The document concludes that conditions of brittle failure must be well described in tender documents to allow selection of effective flexible support classes that can manage changing ground and prevent delays.

Detailed Information

Author:['Parmeshwar Kushwaha']
Publication Year:2017
Pages:34
Language:English
Format:PDF
Price:FREE
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