Triaxial compressive strength data of tests conducted at varying strain rates and confining pressures on salt samples from the Northwich Halite Member

The dataset contains triaxial compressive strength data of salt samples collected from the Northwich Halite Member at the Winsford Mine in Cheshire, UK. Each sample was subjected to varying strain or displacement-equivalent rates under conventional triaxial stress conditions to evaluate its mechanical response to different loading conditions. The experiments were conducted over two testing campaigns between July 2022 and August 2023, using a servo-controlled stiff load frame in the Rock Mechanics and Physics Laboratory at the British Geological Survey, Keyworth, UK. The dataset is organized into individual Microsoft Excel files, each corresponding to a single test and containing parameters such as time, force, stress, displacement, and strain. A summary file detailing sample characteristics and test conditions is also included.

Date (Creation): 2025-03-10

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13608391

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Heriot-Watt University	Nathaniel D Forbes Inskip	not available	Originator
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: Not planned

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

NGDC Deposited Data
Salt
UK Location (INSPIRE)
Compressive strength
Citable Data
Physical properties
Elastic theory
Compression tests
Halite

dataCentre

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: Other restrictions

Other constraints: The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Spatial representation type: Vector

Language: English

Topic category

Geoscientific information

Geographic identifier: Cheshire County [id=12343]
British Geological Survey Gazetteer: OS Boundary Line 2009 revision

Begin date: 2022-06-21

End date: 2023-08-16

Unique resource identifier: OSGB 1936 / British National Grid (EPSG::27700)

Unique resource identifier: WGS 84 (EPSG::4326)

Distribution format

Name	Version
Microsoft Word Document (.docx)
Comma Separated Values File (.csv)
PDF Document

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item187103	Data

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.5285/cd703497-68f5-4d52-a353-3eef0ff62b3e	Digital Object Identifier (DOI)

Hierarchy level: Dataset

Other: dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: No

Statement: Each sample was subjected to triaxial stress conditions, where the primary principal stress corresponded to the axial stress and the intermediate and minimum principal stresses are equal to the confining pressure. The experiments followed a three-stage process: (1) hydrostatic loading to a pre-determined confining pressure (5–45 MPa), (2) active deformation under either a constant strain rate (ranging from 1e-5 to 1e-3 per second) or a constant displacement rate (0.0012–0.12 mm/s), and (3) stress unloading. The confining pressure remained constant throughout each test, while temperature and humidity were maintained at room conditions. Measurements were recorded at a rate of 4 Hz in time domain and at every 250 N in force domain to capture force variations accurately. An axial displacement correction was applied using a 5th-order polynomial to obtain a true measure of sample displacement.