초록 ▼

Methods and apparatuses for rehabilitating and increasing the functionality of existing underground conduits wherein a plurality of conduits are simultaneously inserted into an existing conduit by bursting the existing conduit to create a tunnel and inserting a plurality of new conduits into the tun

Methods and apparatuses for rehabilitating and increasing the functionality of existing underground conduits wherein a plurality of conduits are simultaneously inserted into an existing conduit by bursting the existing conduit to create a tunnel and inserting a plurality of new conduits into the tunnel, such that at least one of the new conduits has a capacity equal to or greater than the capacity of the existing conduit, are provided. The new conduits are either separate from or removeably connected to one another, such that the new conduits are capable of being diverted from the tunnel at separate locations and the new conduit system can be used primarily for carrying media similar to that of the original conduit or additionally for completely different and unrelated media such as fiber optic cable, coaxial cable or electrical cable.

대표청구항 ▼

Methods and apparatuses for rehabilitating and increasing the functionality of existing underground conduits wherein a plurality of conduits are simultaneously inserted into an existing conduit by bursting the existing conduit to create a tunnel and inserting a plurality of new conduits into the tun

Methods and apparatuses for rehabilitating and increasing the functionality of existing underground conduits wherein a plurality of conduits are simultaneously inserted into an existing conduit by bursting the existing conduit to create a tunnel and inserting a plurality of new conduits into the tunnel, such that at least one of the new conduits has a capacity equal to or greater than the capacity of the existing conduit, are provided. The new conduits are either separate from or removeably connected to one another, such that the new conduits are capable of being diverted from the tunnel at separate locations and the new conduit system can be used primarily for carrying media similar to that of the original conduit or additionally for completely different and unrelated media such as fiber optic cable, coaxial cable or electrical cable. s a capacity less than the existing underground pipeline. 14. The method of claim 13, wherein the central channel has a diameter in the range of approximately 4-18 inches, and the at least one outer channel has a diameter in the range of approximately 1-5 centimeters. 15. The method of claim 7, wherein the central channel has a capacity less than a capacity of the existing underground pipeline, and the at least one outer channel has a capacity less than the existing underground pipeline, such that the multi-chamber conduit has a diameter substantially equal to a diameter of the existing underground pipeline. 16. The method of claim 15, wherein the central channel has a diameter in the range of approximately 4-18 inches, and the at least one outer channel has a diameter in the range of approximately 1-5 centimeters. 17. The method of claim 7, wherein the new conduits are comprised of one or more material(s) selected from the group consisting of: high density polyethylene, extra high molecular weight polyethylene, medium density polyethylene, polypropylene, polyvinyl chloride, steel or iron. 18. The method of claim 7, wherein the new conduits are installed in sections having a length of approximately 50-500 feet. 19. The method of claim 7, further comprising the step of redirecting at least a first of the new conduits to a first junction area and running at least a second of the new conduits to a second junction area to construct a plurality of networks, such that the first of the new conduits may be accessed from the first junction area and the second of the new conduits may be accessed from the second junction area.