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Title: Use Of Water Cannon For Trenching
Author: Louis L. Clipp
Source: American Gas Association 1973
Year Published: 1973
Abstract: One of the problems constantly facing todays gas utilities is how to economicaliy install underground facilities while having to excavate through materials ranging from concrete lo permafrost. Last year, the White House expressed its concern with the problem of placing utilities underground and announced that it would attempt to stimulate new lechnologies for underground excavation due to the virtual disappearance of land available for aqueducts, power and utility lines, highways and transportation lines. The White House announcement left little doubt that all utilities, not just gas. would soon be encouraged to go underground. For city planning, the concept of central underground corridors, where all utilities would be carried, is gaining speed. In addition to lessened environmental impact, maintenance of these lines is simpler, as the climate does not interfere.

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