Corrugated sheath, nke a maara dịka corrugated duct ma ọ bụ protective conduit, bụ sistemu sleeve polymeric nke a meere ike ka o jiri cable prestressing na rod n'ibu ala anchor na tieback installations. Ọ na-agawa na polyethylene ihu-densị (HDPE) ma ọ bụ polypropylene (PP), ihe nke a pụtara elu ngosi corrugated helically na-enye ike elu ihu ebe na-agba ike nʼogologo-nkwụ nke installation ma na-agbakụ nkwụ ogere. Elu nʼelu dị ọmụ na-egbochi mmebi tendons ma ebe profị corrugated na-agbakụ moment inertia nke ike, na-eme ka sheath na-igba lateral loads na bending stresses na-eche n'deep foundation arụmụka. Ọmụ ọrụ abụọ design nke a na-eme corrugated sheath ọ bụ akụkụ mma n'ihe tieback na alu anchor systems nke ọhụ, ma naa ebe ogologo oge olu na corrosion protection bụ ihe dị mkpa.
Corrugated sheath, nke a maara dịka corrugated duct ma ọ bụ protective conduit, bụ sistemu sleeve polymeric nke a meere ike ka o jiri cable prestressing na rod n'ibu ala anchor na tieback installations. Ọ na-agawa na polyethylene ihu-densị (HDPE) ma ọ bụ polypropylene (PP), ihe nke a pụtara elu ngosi corrugated helically na-enye ike elu ihu ebe na-agba ike nʼogologo-nkwụ nke installation ma na-agbakụ nkwụ ogere. Elu nʼelu dị ọmụ na-egbochi mmebi tendons ma ebe profị corrugated na-agbakụ moment inertia nke ike, na-eme ka sheath na-igba lateral loads na bending stresses na-eche n'deep foundation arụmụka. Ọmụ ọrụ abụọ design nke a na-eme corrugated sheath ọ bụ akụkụ mma n'ihe tieback na alu anchor systems nke ọhụ, ma naa ebe ogologo oge olu na corrosion protection bụ ihe dị mkpa.
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