1,397,403 research outputs found
A study of the reactivation of landsliding at Barton-on-Sea, Hampshire, following stabilisation works in the 1960s
No full textThe mostly clay cliffs of Barton-on-Sea, Hampshire, comprise inhomogeneous strata of the Bracklesham, Barton and Headon Hill Formations, overlain unconformably by Plateau Gravels, and have a long history of erosion and instability. Heavily-engineered stabilisation works involving a 1,500m-long sheet-piled wall and cut-off drain were installed in the 1960s but a number of catastrophic failures of the wall have occurred at locations along the Barton frontage since then. This report is concerned with the failures at Cliff House Hotel / Tom’s Garden and at Hoskins Gap West.Extensive monitoring of the cliffs over the past sixty years has produced a large and diverse dataset which has been compiled, analysed and assessed in this report. This includes inclinometer, piezometer and rainfall records, topographic surveying, aerial and ground photography, borehole and exposures logs, consultants’ reports, engineering drawings and newspaper articles. This report identifies characteristics of the key periods of activity at the two locations and compares and contrasts them. Maps of the areas of activity, cliff-top retreat, revetment movement and drainage patterns are provided. Fieldwork undertaken for the project includes the logging of three cliff exposures and the surveying of four cross-section profiles. Drawing on the information available it charts the progress of instability in the two study areas, suggests possible mechanisms for the failures and offers a prediction of future activity based upon the mechanisms described
The degradation of the Barton Clay Cliffs of Hampshire
No full textThe Barton Clay crops out along a 4·8 km stretch of the Hampshire coast and together with its capping of Plateau Gravels forms a cliff profile averaging around 30 to 37 m high. The original classic work on the geology of the Barton Clay had suggested a total thickness of only 34·5 m; more recent work involving boring and levelling on the cliff face has shown the formation to be 46·4 m thick. Active degradation of the outcrop creates a markedly stepped profile, relatively flat bench levels being separated from one another by steeper scarp slopes. The benches are underlain by up to 6 m of slipped debris or bench rubble. The scarps are formed by exposures of the solid Barton Clay and Plateau Gravel in the case of the top scarp. The interface between the bench rubble and Barton Clay is formed by a shear surface, an underground continuation of the scarp surfaces, which has been polished and grooved as a result of the seaward movement of the bench rubble. These shear surfaces are developed along particular, identifiable stratigraphic horizons within the Barton Clay and tend to develop along these horizons irrespective of the height of the latter within the cliff profile. Variations in the morphology occur laterally along the outcrop and can be related to the erosional history and partly to the geology.Five individual processes of degradation are particularly active on the undercliffs; these comprise bench sliding which is sliding of the bench rubble over the shear surfaces, collapse of the scarp slopes or scarp slumping, wearing down of the scarp slope by weathering or scarp spalling, and erosion by mud-flows and running water. Both mud-flows and streams when well developed cut through bench rubble and into the scarp slope and locally destroy the stepped profile. The current activity of these processes is due to marine erosion of the toe, the net result of the processes being a progressive retreat of the cliff top averaging over one metre per year in some places
Reactivation of landsliding following partial cliff stabilization at Barton-on-Sea, Hampshire, UK
No full textThe historically unstable eastern side of the Barton Clay coastal outcrop was subject to stabilization works during 1967–1968, the principal part of which was a 1450 m long filter drain with a sheet pile cut-off aimed at the seepage-prone Barton Sand–Barton Clay junction. Subsequently four reactivated landslides occurred and by 2008 amounted to c.?46% of the total length of the filter drain. Two of these landslides were massive failures of the whole undercliff. This paper examines the relations between the landslides and the stratigraphy, including the presence of the known preferred surfaces of shearing, and the characteristic geomorphological modes of degradation in the Barton Clay undercliffs. It is shown that although the original drainage design reflected the influence of the stratigraphy, there was insufficient consideration of the hazards posed by the natural patterns of degradation and their geomorphological expression. The earlier two of the landslides were followed by remedial measures but the latest two are continuing. Although the cliff toe is well protected by a robust rock armoured revetment, the western end of this area is now reverting to the state that existed before the stabilization works were installed
Clara Barton papers
No full textThe papers of Clara Barton (1821-1912), humanitarian and founder of the American Red Cross, document various of Barton's Red Cross efforts and her involvement in the National First Aid Association. Also included are records of the Women's Relief Corps which highlight efforts to urge Congress to pass a bill granting pensions to nurses of the Civil War
History of the Bartons / [Augustus Purling Barton].
No full textElectronic reproduction. Canberra, A.C.T. : National Library of Australia, 2010
Portrait of Mary Louisa Barton, wife of William Barton [picture] /
No full textInscriptions: "J. H. Newman, Sydney" --Printed below image. "Mary Louisa Barton, wife of William Barton, born 24.5.1808, died 14.6.1872" --In pencil on reverse. "J. H. Newman, 12 South Head Road, Hyde Park, Sydney" --Stamped on reverse.; Condition: Fair.; Title from inscription on reverse.; Part of a collection of photographs of Edmund Barton, his family, associates etc; Related material: Papers of Sir Edmund Barton, 1827-1940 National Library of Australia Manuscripts section MS 51, Series 12, item 1265
Edmund Barton as a young man [picture].
No full textInscriptions: "51/1254, Edmund Barton as a young man" --In pencil on reverse.; Condition: Fair.; Title from inscription on reverse.; Part of a collection of photographs of Edmund Barton, his family, associates etc; Related material: Papers of Sir Edmund Barton, 1827-1940 National Library of Australia Manuscripts section MS 51
[Lady Barton inside the Barton house?] [picture].
No full textInscriptions: "51/1273, neg no. 4670" --In pencil on reverse.; Condition: good.; Title devised by cataloguer.; Part of a collection of photographs of Edmund Barton, his family, associates etc; Related material: Papers of Sir Edmund Barton, 1827-1940 National Library of Australia Manuscripts section MS 51
[William Hoblitzell Barton World War I scrapbook: typescript]
No full textWilliam Hoblitzell Barton (1894-1961) served during World War I in the Army 36th Infantry Division, Company C, 133rd machine gun battalion. His scrapbook contains a 1918 roster of his battalion; 12 typescript pages describing training in Texas and his service in Europe; photographs with typescript captions; military pamphlets, orders, letters, military ribbons and buttons, and newsletters. More than half of the scrapbook contains postcards of France
John A. Barton [nephew], 1902
No full textTwo letters from John A. Barton to Eliza Holloway writing to express regret for not seeing her depart for Independence and gratitude for her letters
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