Reinforced concrete protective cover for circumferential surround of pipelines and methods

A formwork for a circumferential jacketing surround of a pipe, comprising:

• an envelope having opposing top and bottom layers interconnected by opposing end panels and opposing first and second side edges defining open ends that are configured with opposing mating connectors for joining the first side and the second side edges together;
• a plurality of a set of interior linkages between the top layer and the bottom layer, said linkages in each set crossing medial the top layer and the bottom layer as a crossing support;
• a plurality of circumferential cables extending between the crossing support and the opposing top layer of the envelope from the opposing first side edge to the second side edge sides;
• a plurality of cable clamps, each for securing opposing ends of a respective one of the circumferential cables;
• and
• a plurality of longitudinal cables extending between the circumferential cables and the top layer between the opposing first and second sides,
• the formwork for wrapping circumferentially around a pipe, whereby the opposing ends of each respective one of the circumferential cables being clamped together and the opposing first and second side edges connect together with the mating connectors, with a fluidal curable material received into the envelope for curing the formwork as a circumferential jacketing surround of the pipeline.

A method for jacketing a pipeline with a circumferential surround, comprising the steps of:

• (a) wrapping an envelope around a section of a pipe, said envelope having opposing top and bottom layers interconnected by opposing end panels and opposing first and second side edges that are configured with opposing mating connectors for joining the first side and the second side together:
• (b) joining the first and second side edges;
• and
• (c) filling an interior cavity of the envelope with a curable fluidable material, whereby the envelope wrapped circumferentially around a pipe and closed by connecting together the opposing first and second side edges with the mating connectors, being filled with the fluidal curable material received into the envelope for curing as a circumferential jacketing surround of the pipeline,
• the envelope having a plurality of a set of interior linkages between the top layer and the bottom layer, for holding the top and bottom layer in spaced-apart relation upon filling the envelope with the fluidal curable material.

A method of forming a jacketing surround for a pipeline, comprising the steps of:

• (a) weaving a formwork envelope having opposing top and bottom layers and including interweaving of:
• a plurality of sets of interior linkages, each set having at least a first cord and a second cord woven in alternating respective opposing top sheet and bottom sheet for a respective predetermined length, whereby said interior linkage comprises a portion of the cord transition between the top and bottom layer and said respective portions defining a respective one of a plurality of crossing supports;
• a plurality of spaced-apart longitudinal pull cords in said to sheet;
• and
• a plurality of spaced-apart transverse pull cords in said top sheet;
• (b) attaching opposing mating connectors to opposing first and second side edges for joining the first side and the second side together;
• (c) attaching each respective longitudinal pull cord to a circumferential cable;
• (d) pulling each respective longitudinal pull cord from the envelope to position the circumferential cable between the crossing supports and the top layer;
• (e) attaching each respective transverse pull cord to a longitudinal cable;
• and
• (f) pulling each respective transverse pull cord from the envelope to position the longitudinal cable between the respective circumferential cable and the top layer,
• whereby the formwork envelope being wrapped circumferentially around a pipe, the opposing ends of each respective one of the circumferential cables clamped together, and the opposing first and second side edges connected together with the mating connectors, filling the formwork envelope with a fluidal curable material for curing the formwork envelope as a circumferential jacketing surround of the pipeline.