Research and Application of Trenchless Repair Technology for Directly Buried High-temperature Hot Water Pipelines
Combined with the engineering ex-ample,the feasibility of the trenchless repair technology(inserting lined pipe repair technology)for the directly buried high-temperature hot water pipelines is dis-cussed.The methods of determining outer diameter,material and wall thickness of lined pipes are given based on the engineering example.It is feasible to car-ry out trenchless repair of the directly buried high-tem-perature hot water pipelines by inserting stainless steel pipe as the lining pipe and grouting the gap between the two pipes.The actual operation is good and the ex-pected repair effect has been achieved.
directly buried high-temperature hot water pipelinetrenchless repairstainless steel lined pipe
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