The University of Southampton
University of Southampton Institutional Repository

Saltmarsh creek bank stability: Biostabilisation and consolidation with depth

Record type: Article

The stability of cohesive sediments of a saltmarsh in Southern England was measured in the field and the laboratory using a Cohesive Strength Meter (CSM) and a shear vane apparatus. Cores and sediment samples were collected from two tidal creek banks, covered by Atriplex portulacoides (Sea Purslane) and Juncus maritimus (Sea Rush), respectively. The objectives of the study were to examine the variation of sediment stability throughout banks with cantilevers present and investigate the influence of roots and downcore consolidation on bank stability. Data on erosion threshold and shear strength were interpreted with reference to bank depth, sediment properties and biological influences. The higher average erosion threshold was from the Sea Purslane bank whilst the Sea Rush bank showed higher average vane shear strength. The vertical variation in core sediment stability was mainly affected by roots and downcore consolidation with depth. The data obtained from the bank faces revealed that vertical variations in both erosion threshold and vane shear strength were affected primarily by roots and algae. A quantitative estimate of the relative contributions of roots and downcore consolidation to bank sediment stability was undertaken using the bank stability data and sediment density data. This showed that roots contributed more to the Sea Purslane bank stability than downcore consolidation, whilst downcore consolidation has more pronounced effects on the Sea Rush bank stability.

Full text not available from this repository.

Citation

Chen, Y., Thompson, C.E.L. and Collins, M.B. (2012) Saltmarsh creek bank stability: Biostabilisation and consolidation with depth Continental Shelf Research, 35, pp. 64-74. (doi:10.1016/j.csr.2011.12.009).

More information

Published date: 1 March 2012
Keywords: Erosion threshold, Shear strength, Roots, Consolidation, CSM
Organisations: Coastal & Shelf Research

Identifiers

Local EPrints ID: 335892
URI: http://eprints.soton.ac.uk/id/eprint/335892
ISSN: 0278-4343
PURE UUID: a635d6b8-c9f9-40f6-960e-e39507f64801

Catalogue record

Date deposited: 13 Mar 2012 16:56
Last modified: 18 Jul 2017 06:10

Export record

Altmetrics

Contributors

Author: Y. Chen
Author: C.E.L. Thompson
Author: M.B. Collins

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×