Rotary drilling rig is a kind of construction machinery suitable for hole forming operation in building foundation engineering. It is mainly suitable for the construction of sand, clay, silty soil and other soil layers, and has been widely used in the construction of various foundations such as cast-in-place piles, diaphragm walls, and foundation reinforcement. The rated power of rotary drilling rig is generally 117 ~ 450KW, the power output torque is 45 ~ 600kN · m, the maximum hole diameter can reach 1 ~ 4m, and the maximum hole depth is 15 ~ 150m, which can meet the requirements of various large-scale foundation construction.
Rotary drilling rig generally adopts hydraulic crawler telescopic chassis, self-lifting and landing foldable mast, telescopic kelly bar, with automatic perpendicularity detection and adjustment, hole depth digital display, etc. The operation of the whole machine generally adopts hydraulic pilot control and load sensing. Easy and comfortable to operate.
The main winch and auxiliary winch can be applied to the needs of various situations on the construction site. Combined with different drilling tools, the rotary drilling rig is suitable for dry (short auger) or wet (rotary bucket) and rock formation (core barrel) hole forming operations. It can also be equipped with long auger, diaphragm wall grab, vibrating pile hammer, etc. to achieve a variety of functions. It is mainly used in municipal construction, highway bridge, industrial and civil buildings, underground diaphragm wall, water conservancy, seepage prevention and slope protection and other foundation construction.
Application of small rotary drilling rig:
(1) Slope protection piles of various buildings;
(2) Part of the load-bearing structural piles of the building;
(3) Various piles with a diameter of less than 1m for urban renovation municipal projects;
(4) Pile for other purposes.
Post time: Apr-19-2022