Prepared By South Downs Safety Ltd Date Ref No
Tel 020 8732 3030 fax 020 8203 8143 trenchco ltd 499 watford way, mill hill, london nw7 2qp operation construction of double basement top down with secant piled walls, temporary piles, and casting of gf slab before excavating the basement, casting the basement slab and excavating the subbasement.