Application of Trenchless Technique in Municipal Drainage Construction

Trenchless technique can detect,repair and lay different underground lines under the condition of small excavation in the ground.It is a technological revolution in the municipal road and pipeline engineering construction.The wide application of this technique in gravity drainage construction mainly depends on whether the deviation in elevation and other factors can be controlled within the permissible error range.Combined with the practical application in the comprehensive control project of Shanghai Wusong Industrial Park,the technical characteristics and attention matters of the trenchless technique used in gravity drainage construction are analyzed,with a view to providing a reference for generalization and application of this technique in drainage engineering.