Abstract: Method for protecting a cable or a pipe which includes the following stages: a geotextile strip is shaped like a sheath around the cable or pipe; and, the strip is fixed around the cable or pipe. The strip includes a single sheet of at least one layer of nonwoven material. The nonwoven material can be a multilayer material with a central layer of a nonwoven material with a low density and high mechanical strength and at least one outer layer covering it on at least one side, and advantageously on both sides, of higher-density nonwoven material. The geotextile can be heat-sealable and the fixing can in particular be carried out by heat-sealing 141.