Modular façade from blocks, Reinforcement of soils under slope walls of bridge, using keramzit as filler

published:
Number: Issue 10(2008)
Section: Without a section
DOI:
The page spacing of the article: 97-104
Keywords: geo-grid, reinforcement, soil, light, keramzit, bridge, slope part of wall, modular, concrete, block.
How to quote an article: C. Jenner, P. Wills, S. Karri, L. Blundell Modular façade from blocks, Reinforcement of soils under slope walls of bridge, using keramzit as filler. Dorogi і mosti [Roads and bridges]. Kyiv, 2008. 10. P. 97-104 [in Russian]

Authors

Tensar International Ltd, Blackburn, UK
Maxit UK, Runcorn, UK
Tensar International Ltd, Blackburn, UK
P & S Consulting Engineers Ltd, Lytham St Annes, UK

Summary

Design and building of new bridge with arch over canal caused a number of problems in engineers’ work. Aesthetically beautifulness must be combined with canal of 200 years old, which it crosses, and a project must take into account very soft soils of this area. Engineer-consultant has offered to use for bridge base traditional project of brick arch on reinforced pile foundation. However, first time in Europe, project of four slopes is based on soils, reinforced by geo-grids with keramzit as filler. Since 1980 engineers successfully constructed façade structures on reinforced soils with aim of ready-made concrete blocks; chosen procedure includes ties inside construction from stainless steel, which are lightly fastened during construction time, and outside brickworks, which will be combined with brick arch construction. Preference of light filler caused new problems both for designer and for contractors.

References

1. BBA Сертификат No. 00/R122, 2000, ‘Tensar TW1 Система установки подпорных стенок и опор моста’, British Board of Agrément, Watford, Великобритания.
2. BS 8006: 1995 “Строительные нормы и правила укрепления армированных грунтов и других засыпок”, Институт британских стандартов, Лондон, Великобритания.
3. BD70/03: Служба автомобильных дорог, эскизы проектов дорог и мостов – укрепленные/армированные грунты и другие заполнители для сооружения подпорных стенок и опор моста.
4. BS1377: 1990 “Методы тестов для гражданского строительства” часть 7: “Тесты прочности на сдвиг (общая нагрузка)” пункт 5: “Большой прибор стандартного уплотнения”, Институт британских стандартов, Лондон, Великобритания.

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