UNDERGROUND PIPE AND METHOD FOR PROTECTING UNDERGROUND PIPE

An underground pipe 1 comprises a inner pipe 11 that can house a cable 9, a protective member 12 that is disposed on the outer circumference of the inner pipe 11, and an outer pipe 10 that houses the protective member 12 and the inner pipe 11. The strength of the protective member 12 is higher than that of the inner pipe 11 and the outer pipe 10. La présente invention concerne un tuyau souterrain 1 comprenant un tuyau interne 11 pouvant contenir un câble 9, un élément de protection 12 disposé sur la circonférence externe du tuyau interne 11, et un tuyau externe 10 contenant l'élément de protection 12 et le tuyau interne 11. La résistance de l'élément de protection 12 est supérieure à celle du tuyau interne 11 et du tuyau externe 10. 埋設管１は、ケーブル９を収容可能な内管１１と、前記内管１１の外周に配置された防護部材１２と、前記防護部材１２及び前記内管１１を収容する外管１０と、を備え、前記防護部材１２の強度は前記内管１１及び前記外管１０よりも高い。