A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A survey of the geotechnical properties of some mudrocks of lower liassic age in the Scunthorpe area, Humberside, United Kingdom
Abstract During most of the Lower Lias western Europe was covered by a shallow shelf sea in which islands existed. In the English region, deposition was influenced by three tectonic axes which were associated with periodic activity. The succession of the Lower Lias is predominantly argillaceous with subordinate limestones. The clay fraction of the mudrocks usually constitutes more that half the rock with silty material representing between a third and just over 40%. Most of the mudrocks concerned are of intermediate plasticity, the rest being highly plastic. They are inactive and their consistency index indicates that they are either stiff or very stiff. The plasticity tends to decrease with depth, as does the natural moisture content and void ratio. These mudrocks show a general increase in shear strengths with depth. Their shear strength is also influenced by calcium carbonate content, dry density, plasticity, moisture content and prosity. When remoulded, they all displayed a low sensitivity. According to the slake-durability test most mudrocks had a low durability index. The stronger mudrocks were more durable. The compressibility of these mudrocks is very low and is characteristic of heavily overconsolidated very stiff clays. They are impermeable.
A survey of the geotechnical properties of some mudrocks of lower liassic age in the Scunthorpe area, Humberside, United Kingdom
Abstract During most of the Lower Lias western Europe was covered by a shallow shelf sea in which islands existed. In the English region, deposition was influenced by three tectonic axes which were associated with periodic activity. The succession of the Lower Lias is predominantly argillaceous with subordinate limestones. The clay fraction of the mudrocks usually constitutes more that half the rock with silty material representing between a third and just over 40%. Most of the mudrocks concerned are of intermediate plasticity, the rest being highly plastic. They are inactive and their consistency index indicates that they are either stiff or very stiff. The plasticity tends to decrease with depth, as does the natural moisture content and void ratio. These mudrocks show a general increase in shear strengths with depth. Their shear strength is also influenced by calcium carbonate content, dry density, plasticity, moisture content and prosity. When remoulded, they all displayed a low sensitivity. According to the slake-durability test most mudrocks had a low durability index. The stronger mudrocks were more durable. The compressibility of these mudrocks is very low and is characteristic of heavily overconsolidated very stiff clays. They are impermeable.
A survey of the geotechnical properties of some mudrocks of lower liassic age in the Scunthorpe area, Humberside, United Kingdom
Bell, F. G. (author)
1994
Article (Journal)
English
| British Library Online Contents | 1994
Some geotechnical problems associated with pyrite bearing mudrocks
| British Library Conference Proceedings | 1997
North Humberside landscape biology survey
| Taylor & Francis Verlag | 1979
Some hydrogeophysical properties of the Chalk of Humberside and Lincolnshire
| British Library Online Contents | 1994