scholarly journals IN-SITU BACKFILLING EXPERIMENT OF THE SMALL SCALE DRIFT BY SPRAY METHOD IN MIZUNAMI UNDERGROUND RESEARCH LABORATORY, JAPAN

2020 ◽  
Author(s):  
HIROYA MATSUI ◽  
RYOJI YAHAGI ◽  
HIKARU ISHIZUKA ◽  
TOMOHITO TOGURI
Keyword(s):  
Research Laboratory ◽  
Small Scale ◽  
Spray Method ◽  
Underground Research Laboratory

scholarly journals In-situ diffusion of HTO, 22Na+, Cs+ and I- in Opalinus Clay at the Mont Terri underground rock laboratory

2004 ◽  
Vol 92 (9-11) ◽  
Author(s):  
Luc R. Van Loon ◽  
P. Wersin ◽  
J. M. Soler ◽  
J. Eikenberg ◽  
Th. Gimmi ◽  
...  
Keyword(s):  
Research Laboratory ◽  
Opalinus Clay ◽  
Small Scale ◽  
Diffusion Data ◽  
Rock Laboratory ◽  
In Situ Diffusion ◽  
Mont Terri ◽  
Underground Research Laboratory ◽  
Diffusion Properties

SummaryThe diffusion properties of the Opalinus Clay were studied in the underground research laboratory at Mont Terri (Canton Jura, Switzerland) and the results were compared with diffusion data measured in the laboratory on small-scale samples. The diffusion of HTO,

A Heating Experiment in the Argillites in the Meuse/Haute-Marne Underground Research Laboratory

2007 ◽  
Author(s):  
Yannick Wileveau ◽  
Kun Su ◽  
Mehdi Ghoreychi
Keyword(s):  
Research Laboratory ◽  
Linear Thermal Expansion Coefficient ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Linear Thermal Expansion ◽  
General Description ◽  
In Situ Experiment ◽  
Heating And Cooling ◽  
Underground Research Laboratory

A heating experiment named TER is being conducted with the objectives to identify the thermal properties, as well as to enhance the knowledge on THM processes in the Callovo-Oxfordian clay at the Meuse/Haute Marne Underground Research Laboratory (France). The in situ experiment has being switched on from early 2006. The heater, 3 m length, is designed to inject the power in the undisturbed zone at 6 m from the gallery wall. A heater packer is inflated in a metallic tubing. During the experiment, numerous sensors are emplaced in the surrounding rock and are experienced to monitor the evolution in temperature, pore-water pressure and deformation. The models and numerical codes applied should be validated by comparing the modeling results with the measurements. In parallel, some lab testing have been achieved in order to compare the results given with two different scales (cm up to meter scale). In this paper, we present a general description of the TER experiment with installation of the heater equipment and the surrounding instrumentation. Details of the in situ measurements of temperature, pore-pressure and strain evolutions are given for the several heating and cooling phases. The thermal conductivity and some predominant parameters in THM processes (as linear thermal expansion coefficient and permeability) will be discussed.

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