Concentrates on studies of pile foundation construction technology, non-excavation pipeline construction technology and special construction equipment, and has carefully developed a series of rotary drilling rigs for bored piles, continuous wall construction equipment for trenching and a series of horizontal directional drilling rigs and pipe pushing jacks for non-excavation pipe laying, which can meet requirements of various types, specifications and layers of pipeline construction equipment. The equipment has high construction efficiency and good safety and stability.