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Tunnelling through weak and fragile rocks of Himalayas

IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad

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Title Tunnelling through weak and fragile rocks of Himalayas
 
Creator Goel, R.K.
 
Subject Blasting
 
Description A considerable amount of tunnelling has been going on in India for various projects such as hydroelectric power, irrigation, roads and railways. Most of these projects are located in Himalayas, far away from the urban areas. Tunnelling through weak and jointed rock masses such as the one in the Himalayas is a challenging task for the planners, designers, engineers and geologists because of high overburden, thickly vegetated surface, weak, poor and fragile rocks and highly varying geology with the presence of numerous small and big shear zones, faults, etc. Due to these reasons, various tunnelling problems have been faced in the past and are still being encountered. Failures and the problems may be regarded as challenges and opportunities for generating new knowledge base and thereby increasing self-reliance in tunnelling. The experiences of Himalayan tunnelling through weak and fragile rocks covering varying and mixed geology, understanding on tunnelling in squeezing ground conditions and applicability of TBM in Himalayas are presented. It has also been highlighted that the probe holes planning, drilling and monitoring shall be followed seriously to reduce the geological surprises.
 
Publisher Elsevier
 
Date 2014-11
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cimfr.csircentral.net/1686/1/2014.pdf
Goel, R.K. (2014) Tunnelling through weak and fragile rocks of Himalayas. International Journal of Mining Science and Technology, 24 (6). pp. 783-790. ISSN 2095-2686
 
Relation https://doi.org/10.1016/j.ijmst.2014.10.008
http://cimfr.csircentral.net/1686/