Abstract
The extent of liquefaction of sands increases when the degree of saturation decreases. Sweden proposed the Proctor/Fagerberg method to IMO as an alternative test method of the Transportable Moisture Limit. This method introduced 70% degree of saturation as the criterion for the safe transportation of cargoes in bulk, but the applicability of this criterion was not clear because the volumetric change is significantly large due to the fragility of the edge of the particle. To examine the effect of the degree of saturation on the liquefaction strength, triaxial compression tests for coal were carried out. Even when the degree of saturation is 50% the coal is liable to liquefy by applying a cyclic load of stress ratio SR = 0.3. It can be said that the pore pressure is prone to rise under the unsaturated condition. On the basis of these experimental data, it is concluded that the Proctor/Fagerberg method should not be applied for coals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
