Compressibility and Young's modulus of a filled joint under uniaxial compression

Author : Mohd For Mohd Amin & Haryati Awang
Publication : Bulletin of the Geological Society of Malaysia
Page : 323-328
Volume Number : 45
Year : 2002

Geological Society of Malaysia Annual Geological Conference 2002, May 26 – 27, Kota Bharu, Kelantan, Malaysia

Compressibility and Young’s modulus of a filled joint under uniaxial compression


1Universiti Teknologi Malaysia, Skudai, Johor

2Universiti Teknologi Mara, Shah Alam, Selangor


Abstract: Weathering not only imposes a weakening effect but often widens critical and discrete geological discontinuities that induce further inhomogeneity into the weathered rock mass. Filled joint is one of the example of
these geological discontinuities which has been frequently associated with numerous constructional problems. This paper discusses a laboratory investigation on the compressibility of a filled joint model under uniaxial loading. Laboratory test data was used to estimate the modulus of the infill and joint block. Using a composite homogeneous model, the modulus of the model filled joint was estimated. The resultant modulus is found to be lower than the modulus of joint block alone.ward.