Author: Wilson, Nyal E
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Wilson, Nyal E
The movements produced at the ground surface by underground coal mining are described and the ways in which these produce forces on structures sited on and within the soil are considered. The forces are shown to be related to the deformation properties of both soil and structure. The available information on damaging movements is summarised. Examples are given of a variety of structures which have been successfully erected in areas of mining subsidence. These indicate that there is no longer need to sterilise sites which overlie coal measures. J. D. Geddes and D. W. Cooper
An Ordinary General Meeting of the Institution of Structural Engineers was held at 11, Upper Belgrave Street, London, S.W.l., on Thursday, 25th January, 1962, at 5.55 p.m. Mr. F. R. Bullen, B.Sc.(Eng.), M.I.Struct.E. , M.I.C.E., (President) in the Chair. The following members were elected in accordance with the Bye-Laws. Will members kindly note that the elections, as tabulated below, should be referred to when consulting the Year Rook for evidence of membership.
The first Presidential Tour took place in 1950, when Mr. Leslie Turner, accompanied by the then Secretary, Major Maitland, visited the South African Branch Headquarters in Johannesburg and the Sections of that Branch in Cape Town and Durban. This visit was at the invitation of the Branch, which by then had been established fourteen years. That the visit was a success is evident by the invitation from the Branch that a second Presidential visit be made. The invitation was accepted and in 1957 Mr. and Mrs. J. Guthrie Brown visited Rhodesia, Kenya and the Union of South Africa. Lt.-Colonel G. W. Kirkland