Abstract:
A system and method for pipe insertion in live gas mains includes isolating a section of the gas main and taking measurements of service line connection points. This data is then used to prepare a pipe to be inserted into the gas main by drilling holes and applying fittings at the appropriate locations. The prepared pipe is then inserted into the gas main and the service lines are connected to it without the need to excavate the street over each service connection. The inserted pipe is then fluidly connected to the cut ends of the gas main and gas flow is routed through the newly inserted pipe and the attached service lines, while gas continues to flow through the original portions of the gas main that still remain in service.
Abstract:
A system and method for pipe insertion in live gas mains includes isolating a section of the gas main and taking measurements of service line connection points. This data is then used to prepare a pipe to be inserted into the gas main by drilling holes and applying fittings at the appropriate locations. The prepared pipe is then inserted into the gas main and the service lines are connected to it without the need to excavate the street over each service connection. The inserted pipe is then fluidly connected to the cut ends of the gas main and gas flow is routed through the newly inserted pipe and the attached service lines, while gas continues to flow through the original portions of the gas main that still remain in service.
Abstract:
A method for installing a liner in a large diameter pipeline. In accordance with the method, the interior surface of the pipeline to be repaired is prepared by removing excess debris and dirt. A repair composite is brought into the tunnel or pipeline in a dry state. Once the dry repair composite is laid out in the structure to be repaired the repair composite is folded out and saturated and wetted out with high pressure spray guns. The spray guns are employed within the structure and an appropriate resin material is applied as required to wet out the fiber material. A calibration bladder is inflated and holds the repair composite in place against the pipeline walls until the epoxy resin is fully cured. Once the process is complete, the bladder tube is retrieved out of the system leaving the repair composite as a stand-alone system.
Abstract:
A continuous fabric (40) for use in forming a repair liner for reinforcing a pipe. The fabric includes a top layer (26) and one or more bottom layers (24). The width of the top layer (26) is less than the width of the continuous fabric (40) and the density of the top layer (26) is less than the density of at least one of the at least one or more bottom layers (24). The top layer may serve as a guide for winding the fabric in an overlapping pattern about a mandrel so that the essentially only the top layer is visible in the fabric winding.
Abstract:
Real-time location systems and methods use small, battery operated sensors and radios. The radios conform to the IEEE 802.15.4 standard. The radios are attached to objects to form mobile nodes. Fixed nodes are positioned to define a wired or wireless mesh network representing an area in which the objects can be monitored and tracked. The real-time location systems/methods provide robust, flexible and highly scalable systems/methods for remotely, accurately, efficiently, and/or readily tracking and securing objects (e.g., equipment, inventory, people) at a relatively low cost.
Abstract:
Disclosed is a pipeline regeneration pipe with which necessary strength can be ensured by means of the inserted regeneration pipe itself without the necessity of grouting, the regeneration pipe being characterized by being configured of an inner wound flexible resin layer (5d) which constitutes the inner layer of a straight pipe part (5b), an outer wound flexible resin layer (5e) laminated on the outer surface of the inner wound flexible resin layer and constitutes the outer layer of the straight pipe part, and a protruded rim part (5c) helically formed on the outer surface of the outer wound flexible resin layer, the protruded rim part (5c) being configured by a rigid-resin core (5g) helically wound, and a core-covering part (5f) integrated with the outer wound flexible resin layer so as to surround the rigid-resin core.