Report 239 Behaviour during construction of a propped diaphragm wall founded on London Clay at Aldershot Road underpass

Publication Year

1997

Document Status

Current

Abstract

For underpasses, support is often provided by a structural slab spanning between the walls on each side and cast just below carriageway level. Design of these features is not straightforward, and currently available advice does not cover this support category. Describes the field instrumentation and monitoring carried out to establish the behaviour of a T shaped diaphragm wall founded in overconsolidated clay during its construction as part of the Aldershot Road underpass.

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