In trenchless construction, some technical difficulties will be encountered during horizontal drilling. Generally speaking, these 11 aspects are included. 1. Stuck drill Sticking is a common technical difficulty in hole reaming. If stuck, analyze and identify the cause and then deal with it. 1. If the drill is stuck in contact with the underground pipeline, withdraw the drill bit, drag …

Trenchless construction: 11 technical difficulties of horizontal drilling 1. Stuck drill Stuck drilling is a common technical difficulty in hole reaming. In case of stuck drilling, analyze the cause and deal with it. 1. When colliding with the underground pipeline, the drill bit is stuck, the drill bit is pulled out, the drill pipe is pulled back, the drill rig …