Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Isothermal Creep Behaviour Investigation of Thin Spray-On Liners
Date
2017-06-28
Author
Güner, Doğukan
Öztürk, Hasan
Metadata
Show full item record
Item Usage Stats
118
views
0
downloads
Cite This
Rock supporting has a vital importance in longevity and sustainability of all underground openings. There are many types and forms of supporting systems available in the mining/tunneling industry. In the last decade, a new polymer-based surface support material, thin spray-on liner (TSL), has started to take place of conventional surface support materials. TSL is defined as generally cement, latex, polymer-based and also reactive or non-reactive, multi-component materials applied to the rock surface with a layer of few millimeter thickness. They have the advantages of low volume, rapid application and low operating cost. The majority of current TSLs are two-part polyurethane/polyuria or Portland cement based latex products that are mixed on site before spraying onto surfaces. They are now being considered for highly stressed, deep, rock bursting conditions as a reinforcement and retaining element together with bolts and screen. In this study, the creep behavior of a cement-based TSL was investigated. For this purpose, 7-day cured dogbone TSL specimens were tested under 23±2°C laboratory conditions. A range of dead weights (80, 60, 40, and 20 % of the tensile strength) were applied until the rupture of the specimens. As a result of this study, the time-dependent strain behavior of a TSL was presented for different constant load conditions. Moreover, a new equation was derived to estimate tensile failure time of the TSL for a given loading condition. If the tensile stress acting on the TSL is known, the effective permanent support time of the TSL can be estimated by the proposed relationship.
Subject Keywords
Metals & mining
,
Liner
,
Creep rupture envelope
,
Dead weight
,
Shotcrete
,
Design engineer
,
Upstream Oil & Gas
,
TSL
,
Application
URI
https://www.onepetro.org/conference-paper/ARMA-2017-0320
https://hdl.handle.net/11511/75931
Conference Name
51st U.S. Rock Mechanics /Geomechanics Symposium (June 2017)
Collections
Department of Mining Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Importance of Displacement Measurement Location of Polymeric Dogbone Tensile Test Specimens
Güner, Doğukan; Öztürk, Hasan (null; 2015-05-24)
Rock supporting has a vital importance in longevity and sustainability of all underground openings. There are many types and forms of supporting systems available in the mining/tunneling industry. In recent decade, new polymer-based surface support material, thin spray-on liner (TSL), has started to take place of conventional surface support materials. Although TSL holds numerous merits and application purposes, the knowledge on mechanical properties of this material is in limited levels yet. In laboratory ...
Electrical potential response of the quartz bearing rocks under uniaxial loading
İnal, Hikmet Sinan; Bilgin, Hasan Aydın; Department of Mining Engineering (2004)
The electric potential changes under uniaxial loading in some minerals and rocks have long been recognized. To daylight the electrical response of some minerals and rocks against applied stress, both theoretical studies and laboratory experiments are conducted. Some theories are also proposed by different researchers, in order to explain the electric potential variations. However, the mechanisms leading to electrical potential generation have not been fully explained yet. In the explanation of electric pote...
Creep modelling study of a surface support liner
Güner, Doğukan; Öztürk, Hasan (2018-06-24)
Surface supports are widely used in underground excavations. Since conventional surface support liners have inherently-brittle characteristics and require longer curing period, an alternative support system using polymer based surface support liner, thin spray-on liners (TSLs), has been observed to have a promising ductile and fast-curing potential for underground operations. TSLs can exhibit a good performance for highly-stressed, deep, rock bursting conditions as well when used together with rock bolts an...
Probabilistic-numerical modeling of stability of a rock slope in Amasya-Turkey
Gheibie, Sohrab; Akgün, Aykut; Department of Mining Engineering (2011)
Rock slope stability is considered as one of the most important fields in rock engineering. Developments of computation facilities and increase in application of sophisticated mathematical concepts in engineering problems have also affected the methods of slope stability analysis. In recent years, the numerical modeling methods have extensively applied instead of limit equilibrium methods. Also, the probabilistic methods are considered in rock slope designs to quantify the uncertainties of input effecting v...
Evaluation of the complex kinematic failure mechanisms along Mudurnu Valley, Bolu, Turkey through the utilization of UAV
Kelam, Arzu; Akgün, Haluk; Koçkar, M.k. (2018-06-22)
Rock slopes can cause severe failures and they are crucial in characterizing rock masses realistically in order to overcome natural hazards. Mudurnu County, which is settled in a steep valley presents a case for regional rock instability problems. Instabilities of rock masses along the valley are triggered by topography, weathering, man-made and earthquake activities. Discontinuous limestone located at the west side of the Mudurnu valley is susceptible to complex kinematic failures resulting from the combin...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
D. Güner and H. Öztürk, “Isothermal Creep Behaviour Investigation of Thin Spray-On Liners,” presented at the 51st U.S. Rock Mechanics /Geomechanics Symposium (June 2017), California, USA, 2017, Accessed: 00, 2021. [Online]. Available: https://www.onepetro.org/conference-paper/ARMA-2017-0320.