Show simple item record

dc.contributor.author Dhanawardana, YLC
dc.contributor.author Siriwardana, HDPM
dc.contributor.author Henderson, SH
dc.contributor.author Kumara, HMCP
dc.contributor.author Indika, KAS
dc.contributor.author Dharmaratne, PGR
dc.contributor.author Welideniya, HS
dc.contributor.author Rohitha, LPS
dc.contributor.editor Karunaratne, S
dc.date.accessioned 2022-06-23T10:34:43Z
dc.date.available 2022-06-23T10:34:43Z
dc.date.issued 2009-05
dc.identifier.citation ************* en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18365
dc.description.abstract In fractured rock masses, large excavations have an unsupported stand-up times less than the minimum time required to support the roof after the excavation. Therefore, the principal objective in the design of a support system is to help the rock mass to support itself. The use of rock bolts is a very flexible supporting method that can be combined with wire mesh, shotcrete and concrete lining. During past years a wide variety of dowels and bolt types were developed but most of them failed within a short period and the cost were high. Advantages of cable strand supports have been well documented and include flexibility, strength, and ease of installation. Main objective of this project is to design rock bolts using discarded wire ropes or cables at a low cost. A detailed designing methodology was carried out to fabricate this bolt. The bolt consists of nearly 1.6m long cable and 16 cm of anchored part and cable tightening part. Outer diameter of bolt is 33 mm and inner diameter is 12 mm and used cable diameter is 5mm. Field data illustrated the amount of load measurements that the bolt can carry is 5 kN. Suggestions were made to improve the design, which will enhance bolt performance. Field tests carried out at Bogala Lanka Graphite Ltd proved that cable bolts are effective in Sri Lankan conditions. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering en_US
dc.subject Fractured rock en_US
dc.subject Flexibility en_US
dc.subject Support en_US
dc.subject Low cost en_US
dc.title Design and fabrication of cable bolt for excavation in a fractured rock en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2009 en_US
dc.identifier.conference 4th Annual Conference "Towards the Sustainable Management of Earth Resources" - A Multidisciplinary Approach en_US
dc.identifier.place Katubedda en_US
dc.identifier.proceeding Proceedings of 4th Annual Conference "Towards the Sustainable Management of Earth Resources" - A Multidisciplinary Approach en_US
dc.identifier.email dharme27@yahoo.com en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record