Modelling of ventilation experiment in argillaceous rock tunnel

被引：2
|
作者：
Zhang, C. Y.
Liu, X. Y.
Liu, Q. S.
机构：
[1] Wuhan Univ, Coll Civil Engn, Wuhan 430072, Peoples R China
[2] Wuhan Univ, Key Lab Rock Mech Hydraul Struct Engn, Minist Educ, Wuhan 430072, Peoples R China
来源：
MATERIALS RESEARCH INNOVATIONS | 2011年 / 15卷
关键词：
Nuclear waste disposal; Argillaceous clay; Unsaturated flow; Ventilation experiment; DECOVALEX;
D O I：
10.1179/143307511X12858957676830
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Deep geological disposal is one of the most realistic methods of nuclear waste disposal and argillaceous rocks are being considered as potential host rocks for deep geological disposal. This study starts with performing simulations of a laboratory drying test and a ventilation experiment for Mont Terri underground laboratory. A three-phase and two-constituent hydraulic model is introduced to simulate the processes occurring during tunnel ventilation, including desaturation/resaturation in the rock, real phase change and air/rock interface, and to explore the Opalinus clay parameter set. There is a good agreement between experimental observations and calculation results from other D2011 participant teams. Also it is found that the water content evolution is very sensitive to intrinsic permeability, relative permeability and capillary pressure in clay rock. It indicates that the three-phase and two-constituent hydraulic model is accurate enough and it is a good start for full thermohydromechanical understanding of the ventilation experiment on argillaceous rock.
引用
收藏
页码：S573 / S577
页数：5
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