Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pusher box for nondestructive pipe refurbishment in confined spaces
Methods are disclosed for refurbishing an existing host pipe. According to presently preferred embodiments, a first phase is to make a longitudinal cut in the host pipe. A second phase is an expansion phase, wherein the host pipe is expanded, preferably nondestructively, via separation of the longitudinal cut. A third phase is to insert liner pipe sections into the expanded host pipe. In confined space environments, sections of liner pipe are concatenated end-to-end as they are inserted into the host pipe. In some embodiments, the expansion phase and the liner pipe section insertion phase may be combined. A fourth phase is to grout the annular space formed between the host pipe and the concatenated liner pipe sections.
Pusher box for nondestructive pipe refurbishment in confined spaces
Methods are disclosed for refurbishing an existing host pipe. According to presently preferred embodiments, a first phase is to make a longitudinal cut in the host pipe. A second phase is an expansion phase, wherein the host pipe is expanded, preferably nondestructively, via separation of the longitudinal cut. A third phase is to insert liner pipe sections into the expanded host pipe. In confined space environments, sections of liner pipe are concatenated end-to-end as they are inserted into the host pipe. In some embodiments, the expansion phase and the liner pipe section insertion phase may be combined. A fourth phase is to grout the annular space formed between the host pipe and the concatenated liner pipe sections.
Pusher box for nondestructive pipe refurbishment in confined spaces
THOMPSON ROGER W (Autor:in)
18.08.2020
Patent
Elektronische Ressource
Englisch
Nondestructive pipe refurbishment using liner pipe sections
| Europäisches Patentamt | 2020