Re-injection of groundwater by pressurizing a segmental tunnel lining with permeable backfill
(2010) In Tunnelling and Underground Space Technology 25(2). p.129-138- Abstract
- Recently, within a tunneling project, a method for reinjecting discharged groundwater at tunnel level has been investigated. The method was performed by pressurizing a long section of the lining With ungrouted pea gravel as backfill, in a rock mass with low hydraulic conductivity. Water was reinjected through watertight lining into a section where un-grouted pea gravel was used as backfill. The pressure response was measured both behind the lining and in the rock mass, the latter by means of several observation wells drilled from ground level. Reinjecting water into a rock mass by pressurizing a lining with a permeable backfill (Such as un-grouted pea gravel) was found to be possible and feasible. Well testing methods developed for... (More)
- Recently, within a tunneling project, a method for reinjecting discharged groundwater at tunnel level has been investigated. The method was performed by pressurizing a long section of the lining With ungrouted pea gravel as backfill, in a rock mass with low hydraulic conductivity. Water was reinjected through watertight lining into a section where un-grouted pea gravel was used as backfill. The pressure response was measured both behind the lining and in the rock mass, the latter by means of several observation wells drilled from ground level. Reinjecting water into a rock mass by pressurizing a lining with a permeable backfill (Such as un-grouted pea gravel) was found to be possible and feasible. Well testing methods developed for vertically drilled wells, such as a step injection test and constant head/pressure tests, Were used and found to be applicable, even for testing at tunnel level. It was also found that well known analytical Solutions, developed for vertically drilled wells, can be used for interpretation, e.g. transmissivity from tests performed at tunnel level and from the pressure response in two of the observation wells. (c) 2009 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1589285
- author
- Rosberg, Jan-Erik LU and Aurell, Oskar
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Hallandsas project, Segmental lining, Permeable backfill, Re-injection, Well testing
- in
- Tunnelling and Underground Space Technology
- volume
- 25
- issue
- 2
- pages
- 129 - 138
- publisher
- Elsevier
- external identifiers
-
- wos:000275232400005
- scopus:74149093954
- ISSN
- 1878-4364
- DOI
- 10.1016/j.tust.2009.10.002
- language
- English
- LU publication?
- yes
- id
- 2002c6a3-ad25-4bae-9769-e2ebe7b7ee21 (old id 1589285)
- date added to LUP
- 2016-04-01 09:54:37
- date last changed
- 2022-01-25 17:52:49
@article{2002c6a3-ad25-4bae-9769-e2ebe7b7ee21,
abstract = {{Recently, within a tunneling project, a method for reinjecting discharged groundwater at tunnel level has been investigated. The method was performed by pressurizing a long section of the lining With ungrouted pea gravel as backfill, in a rock mass with low hydraulic conductivity. Water was reinjected through watertight lining into a section where un-grouted pea gravel was used as backfill. The pressure response was measured both behind the lining and in the rock mass, the latter by means of several observation wells drilled from ground level. Reinjecting water into a rock mass by pressurizing a lining with a permeable backfill (Such as un-grouted pea gravel) was found to be possible and feasible. Well testing methods developed for vertically drilled wells, such as a step injection test and constant head/pressure tests, Were used and found to be applicable, even for testing at tunnel level. It was also found that well known analytical Solutions, developed for vertically drilled wells, can be used for interpretation, e.g. transmissivity from tests performed at tunnel level and from the pressure response in two of the observation wells. (c) 2009 Elsevier Ltd. All rights reserved.}},
author = {{Rosberg, Jan-Erik and Aurell, Oskar}},
issn = {{1878-4364}},
keywords = {{Hallandsas project; Segmental lining; Permeable backfill; Re-injection; Well testing}},
language = {{eng}},
number = {{2}},
pages = {{129--138}},
publisher = {{Elsevier}},
series = {{Tunnelling and Underground Space Technology}},
title = {{Re-injection of groundwater by pressurizing a segmental tunnel lining with permeable backfill}},
url = {{http://dx.doi.org/10.1016/j.tust.2009.10.002}},
doi = {{10.1016/j.tust.2009.10.002}},
volume = {{25}},
year = {{2010}},
}