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Article Dans Une Revue Construction and Building Materials Année : 2010

A new analytical solution to the mechanical behaviour of fully grouted rockbolts subjected to pull-out tests

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Laura Blanco Martin
Faouzi Hadj Hassen
Michel Tijani

Résumé

A new analytical approach able to predict the mechanical behaviour of fully grouted rockbolts subjected to pull-out tests is proposed in this paper. Input parameters of such approach are: bolt radius, bolt's Young modulus, displacement of the free end of the bolt and the constitutive law of the rockbolt-grout joint interface. The limited circumstances under which it is accurate to determine such constitutive law from pull-out tests are also presented. A solution for the load-displacement curve obtained during pullout tests has been developed and is detailed in the case of a tri-linear bond-slip model. Comparison with experimental results obtained via in situ pull-out tests has led to the validation of this approach
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Dates et versions

hal-00526686 , version 1 (19-10-2010)

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Laura Blanco Martin, Faouzi Hadj Hassen, Michel Tijani. A new analytical solution to the mechanical behaviour of fully grouted rockbolts subjected to pull-out tests. Construction and Building Materials, 2010, 25 (2), pp.1-7. ⟨10.1016/j.conbuildmat.2010.07.011⟩. ⟨hal-00526686⟩
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