Next Article in Journal
Fabrication of New Liquid Crystal Device Using Layer-by-Layer Thin Film Process
Next Article in Special Issue
Numerical Simulation on the Dynamic Characteristics of a Tremendous Debris Flow in Sichuan, China
Previous Article in Journal
GEKKO Optimization Suite
Previous Article in Special Issue
Coal Anisotropic Sorption and Permeability: An Experimental Study
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Processes 2018, 6(8), 107; https://doi.org/10.3390/pr6080107

Effect of Pore Fluid Pressure on the Normal Deformation of a Matched Granite Joint

1,2
,
1,* , 1,* , 3
and
1
1
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
*
Authors to whom correspondence should be addressed.
Received: 1 July 2018 / Revised: 20 July 2018 / Accepted: 24 July 2018 / Published: 1 August 2018
(This article belongs to the Special Issue Fluid Flow in Fractured Porous Media)
Full-Text   |   PDF [3406 KB, uploaded 1 August 2018]   |  

Abstract

The influence of pore fluid pressure on the normal deformation behaviors of joints is vital for understanding the interaction between hydraulic and mechanical processes of joints. The effect of pore fluid pressure on the normal deformation of a granite matched joint was investigated by laboratory experiments. Experimental results indicate pore fluid pressure significantly affects the normal deformation of jointed sample, and the relative normal deformation of jointed sample during fluid injection consists of the opening of the joint and the dilation of host rock. The action of pore fluid pressure on the joint follows the Terzaghi’s effective stress law. The normal deformation of the joint can be well quantitated by the generalized exponential model. The relative normal deformation of host rock during fluid injection would have a linear relationship with pore fluid pressure, and if affected by gas is more pronounced than water. View Full-Text
Keywords: laboratory experiment; pore pressure; hydro-mechanical coupling; fracture closure; constitutive model; effective stress laboratory experiment; pore pressure; hydro-mechanical coupling; fracture closure; constitutive model; effective stress
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhang, Q.; Li, X.; Bai, B.; Hu, S.; Shi, L. Effect of Pore Fluid Pressure on the Normal Deformation of a Matched Granite Joint. Processes 2018, 6, 107.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Processes EISSN 2227-9717 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top