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Cross measure drift through water-bearing sand
Development of new seam and reorganization of several other seams at Lambton mine, New South Wales, required construction of 1400 ft long cross measure drift and concrete portal from surface sand down to bedrock; open cut method was chosen to construct portal after subsoil survey indicated presence of water-bearing formations; series of well points installed to dewater area proved inadequate, and steel sheet piling was installed to negotiate collapsing sand walls.
Cross measure drift through water-bearing sand
Development of new seam and reorganization of several other seams at Lambton mine, New South Wales, required construction of 1400 ft long cross measure drift and concrete portal from surface sand down to bedrock; open cut method was chosen to construct portal after subsoil survey indicated presence of water-bearing formations; series of well points installed to dewater area proved inadequate, and steel sheet piling was installed to negotiate collapsing sand walls.
Cross measure drift through water-bearing sand
B.H.P. Tech Bul
Gardner, F.J. (author)
1964
9 pages
Article (Journal)
English
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