Compared with the drill and blast method, TBM tunnelling has significant advantages with high construction efficiency, low project cost, conducive to environmental protection, favorable stability contr.
[pdf] A rotary drilling rig is a construction machinesuitable for hole-forming operations in building foundation engineering. It is mainly suitable for sandy soil, cohesive soil, silty soil, fill layer, and silt layer, so.
[pdf] A Dth Machine for Piling is a type of drilling rig that uses a down-the-hole (DTH) hammer to break up rock and soil. This machine is great for creating holes in hard ground, like rock or concrete, and is commonly used in construction projects, mining, and geothermal drilling.
[pdf] 
