Rotary drilling rigs are widely used in municipal construction, highway bridges, high-rise buildings and other basic construction projects, and have become the best choice for bored pile engineering in the field of building foundation engineering.
Why can rotary drilling rigs adapt to various complex working conditions?
Rotary drilling rigs have high power, high output torque, and high axial pressure, and can cope with various complex geological conditions. Moreover, it has strong mobility and high flexibility, and can operate efficiently in different construction environments, greatly improving construction efficiency. By matching different drilling tools such as short spiral drilling tools, rotary buckets, and core drill bits, rotary drilling rigs can also achieve dry, wet, and rock formation drilling operations to meet the diverse needs of various projects.
How to install drilling tools reasonably?
When installing drilling tools, strictly follow the requirements of the manufacturer to ensure that the drilling tools will not move or shake during the drilling process. According to different soil and geological conditions, drill bits of different specifications should be reasonably selected. For example, short spiral drilling tools are suitable for clay soil above the groundwater level; spiral rotary heads are suitable for a variety of soil layers, but they require mud wall protection; core spiral drill bits and core drill bits are suitable for rocks of different hardness and weathered rock layers respectively.
Process of clean water construction technology
The rotary drilling process uses a barrel drill bit to rotate and crush the rock and soil, and directly loads the rock and soil into the drill bit. The drill bit is lifted out of the hole and unloaded through the lifting device and telescopic drill rod. Repeat the operation until the designed depth is reached. For rock and soil layers with good adhesion, dry or clean water drilling technology can be used. The mud produced by the drill bit during the slow rotary drilling process can play a certain stabilizing role on the hole wall. For loose and easily collapsed strata or groundwater distribution, static mud wall drilling technology is required.
Hole formation process: The rotary drilling rig should be carefully inspected before work, and the steel casing should be buried in strict accordance with the specifications to ensure that the plane position and verticality of the steel casing are accurate.
Drilling operation: During the drilling process, the mast must be erected and adjusted. The operator can use the display to monitor the status of the mast in real time, and choose manual or automatic vertical adjustment according to the actual situation. At the same time, the geological conditions must be recorded in time, and the holes must be strictly checked to ensure that the hole depth, hole diameter, hole wall, verticality and other indicators meet the requirements. Clean the hole in time to ensure the quality of the pile.
Rotary drilling rigs play an important role in building foundation engineering. Knowing its construction technology plays a major role in ensuring the quality of the project and improving construction efficiency. If you are looking for a rotary drilling rig, our drilling rigs have a drilling depth ranging from 30 to 100 meters, and the price starts from USD80,000. There are also special offers during the Spring Festival, and the cost-effectiveness is super high. Welcome to inquire at any time.
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