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Title: AN ACTIVE FRACTURE MODEL FOR UNSATURATED FLOW AND TRANSPORT

Abstract

Fracture/matrix (F/M) interaction is a key factor affecting flow and transport in unsaturated fractured rocks. In classic continuum approaches (Warren and Root, 1963), it is assumed that flow occurs through all the connected fractures and is uniformly distributed over the entire fracture area, which generally gives a relatively large F/M interaction. However, fractures seem to have limited interaction with the surrounding matrix at Yucca Mountain, Nevada, as suggested by geochemical nonequilibrium between the perched water (resulting mainly from fracture flow) and pore water in the rock matrix. Because of the importance of the F/M interaction and related issues, there is a critical need to develop new approaches to accurately consider the interaction reduction inferred from field data at the Yucca Mountain site. Motivated by this consideration, they have developed an active fracture model based on the hypothesis that not all connected fractures actively conduct water in unsaturated fractured rocks.

Authors:
; ;
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
776463
Report Number(s):
MOL.20000125.0485
TRN: US0702871
DOE Contract Number:  
DE-AC01-91RW00134
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; FRACTURES; HYPOTHESIS; NEVADA; TRANSPORT; WATER; YUCCA MOUNTAIN

Citation Formats

Liu, Hui-Hai, Bodvarsson, Gudmundur S., and Doughty, Christine. AN ACTIVE FRACTURE MODEL FOR UNSATURATED FLOW AND TRANSPORT. United States: N. p., 1999. Web. doi:10.2172/776463.
Liu, Hui-Hai, Bodvarsson, Gudmundur S., & Doughty, Christine. AN ACTIVE FRACTURE MODEL FOR UNSATURATED FLOW AND TRANSPORT. United States. doi:10.2172/776463.
Liu, Hui-Hai, Bodvarsson, Gudmundur S., and Doughty, Christine. Wed . "AN ACTIVE FRACTURE MODEL FOR UNSATURATED FLOW AND TRANSPORT". United States. doi:10.2172/776463. https://www.osti.gov/servlets/purl/776463.
@article{osti_776463,
title = {AN ACTIVE FRACTURE MODEL FOR UNSATURATED FLOW AND TRANSPORT},
author = {Liu, Hui-Hai and Bodvarsson, Gudmundur S. and Doughty, Christine},
abstractNote = {Fracture/matrix (F/M) interaction is a key factor affecting flow and transport in unsaturated fractured rocks. In classic continuum approaches (Warren and Root, 1963), it is assumed that flow occurs through all the connected fractures and is uniformly distributed over the entire fracture area, which generally gives a relatively large F/M interaction. However, fractures seem to have limited interaction with the surrounding matrix at Yucca Mountain, Nevada, as suggested by geochemical nonequilibrium between the perched water (resulting mainly from fracture flow) and pore water in the rock matrix. Because of the importance of the F/M interaction and related issues, there is a critical need to develop new approaches to accurately consider the interaction reduction inferred from field data at the Yucca Mountain site. Motivated by this consideration, they have developed an active fracture model based on the hypothesis that not all connected fractures actively conduct water in unsaturated fractured rocks.},
doi = {10.2172/776463},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}