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Title: Development of Large Direct Shear Test Apparatus for Passive Bolt Reinforced Mass
Authors: Srivastava L.P.
Singh, Mahendra
Singh J.
Published in: Indian Geotechnical Journal
Abstract: Shear testing of large size rock mass in the laboratory is a tedious and challenging task. Difficulties further arise when testing is done with rock bolts. Complex interaction between intact blocks of mass, joint and bolts creates problems during shear testing. Hence, for testing of large rock mass with bolts, special technique and facilities are required. The present paper summarized the details of the development of a large sized direct shear testing facility for passive bolt—reinforced rock masses. A specially designed servo-controlled direct shear test apparatus having shear box of size 750 mm × 750 mm × 1000 mm has been fabricated in the Geotechnical engineering laboratory of IIT Roorkee. The normal loading capacity of the apparatus is 1500 kN while shear loading capacity is 2000 kN. To evaluate the performance of the apparatus, specimens of blocky mass were prepared and tested without and with bolts. The present paper discusses the details about the large direct shear apparatus and testing methodology. © 2018, Indian Geotechnical Society.
Citation: Indian Geotechnical Journal, 49(1): 124-131
Issue Date: 2019
Publisher: Springer
Keywords: Blocky mass
Direct shear test
Passive rock bolts
Shear strength
ISSN: 9719555
Author Scopus IDs: 55983116400
Author Affiliations: Srivastava, L.P., CL Educate Limited, New Delhi, India
Singh, M., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Singh, J., Hydraulic and Engineering Instruments Company (HEICO), New Delhi, India
Funding Details: Acknowledgements This research was carried from financial assistance obtained from NRDMS Division, Department of Science and Technology, New Delhi. The large size direct shear test apparatus used in this study was procured through financial assistance provided by the SERC Division of Department of Science and Technology, New Delhi under the FIST programme. The support received from the divisions of the Department of Science and Technology, New Delhi in completion of this research and cooperation received from Dr. Bhoop Singh and Dr. A Mukhopadhyay is highly acknowledged. The authors acknowledge the help and grant received from Head of Civil Engineering Department, Indian Institute of Technology, Roorkee for providing the necessary facilities for laboratory work. The authors also thank to the staff of the Geotechnical Engineering Laboratory, IIT Roorkee, for the assistance given during the testing works. Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी
Corresponding Author: Srivastava, L.P.; CL Educate LimitedIndia; email:
Appears in Collections:Journal Publications [CE]

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