Trenchless Pipe Laying: HDD Technology For Underground Pipeline Installation

This is trenchless pipeline laying construction using horizontal directional drilling (HDD) technology. Unlike traditional open-trench construction, this method drills an underground channel first, then pulls the pipeline through the drilled hole to complete installation — no road excavation or surface vegetation damage required. It greatly reduces the impact on urban traffic, residents' daily life and the surrounding environment, while also boosting construction efficiency. This advanced construction method is now widely used in municipal water supply, drainage, gas and communication pipeline projects.

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