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Rotary drilling rig construction process steps

Rotary drilling rig construction process steps

Step one: positioning rotary drilling rig. Step 2: Lay the drill bit gently on the ground, rotate it, and start drilling. It is best to use the weight of the drill bit as the drilling pressure to better ensure the accuracy of the pile foundation. Step 3: When the drill bit is full of earth and sand, it is pulled out of the hole. Pay attention to the underground water level in the tunnel and replenish water in time to prevent collapse.

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Rotary excavation is a kind of construction method suitable for hole-forming operation in building foundation engineering.

Rotary excavation is a kind of construction method suitable for hole-forming operation in building foundation engineering.

Rotary excavation is a kind of construction method suitable for hole-forming operation in building foundation engineering. It is mainly suitable for the construction of sand, cohesive soil, silt and other soil layers, and is widely used in the construction of cast-in-place piles, continuous walls, foundation reinforcement and other foundations. The rated power of rotary drilling rig is generally 125 ~ 450kW. The output torque is 120 ~ 400kN · m, the maximum hole diameter can reach 1.5~4m, and the maximum hole depth is 60~90m, which can meet the construction requirements of various large-scale foundations.

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23-11

What is Horizontal Directional Drilling?

What is Horizontal Directional Drilling?

Horizontal directional drilling rig is a construction machinery for laying various underground public facilities (pipelines, cables, etc.) without excavating the surface. Widely used in water supply, electricity, communications, natural gas, gas, oil and other flexible pipelines. During laying construction, it is suitable for sandy soil, clay, etc., but not suitable for high groundwater level and pebble stratum. Most of the non hard rock areas in China can be constructed.

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