AS/NZS 2041:1998 pdf free.Buried corrugated metal structures. AS/NZS 2041 specifies requirements for materials, manufacture, design methods arid installation of buried corrugated metal pipes, pipearches, arches and special shapes comprising bolted corrugated metal sheets or plates manufactured within the limits given in Table I. I and Section 2. It deals only with those structures in which the sheets or plates have...