The systems for replacing subterranean piping through micro-tunneling,
are those employed as a corrective measure in piping spans of
different diameters or conduits of different sections that show
different types and degrees of deterioration such as; joint leaks,
corrosion, and fissures among others. This rehabilitation will
result in the lengthening of the useful life of the structures
with a substantially smaller cost than replacement under more
traditional methods.
These methods have certain particular characteristics, the most
important of which is the elimination of trench digging throughout
the length of the pipeline that needs refurbishing. Another characteristic
of this method is that it does not permit the enlargement of the
diameter of the pipeline being refurbished; much to the contrary,
in most cases the pipe diameter is reduced by the layers of material
used in the rehabilitation, however, these layers poses a smoother
surface that those of the old pipe, thereby avoiding a decrease
in the pipe’s hydraulic flow capacity, and in some cases
even enhancing it. Another important characteristic is the overall
condition that must be retained by the original piping, since
it is necessary for said original pipe to retain certain structural
stability (it is imperative that the pipe is not collapsed) in
order for these methods to be employed.
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