The Hole-forming Methods of Cast-in-place Piles And Their Advantages And Disadvantages

Cast-in-place piles, as a commonly used foundation form in construction projects, have various hole-forming methods, each with its own advantages and disadvantages. Rotary drilling RIGS play a significant role in the construction of cast-in-place piles due to their unique performance. The following is a detailed analysis of their characteristics, advantages and disadvantages for you.

1. Hole-forming principle: The rotary drilling rig breaks the rock and soil by rotating the cylindrical drill bit with a valve at the bottom, and directly loads it into the drill bucket. Then, the drill bit is lifted to remove the excavated debris, and the operation is repeated until a hole is formed.

2. High construction efficiency: The rotary drilling rig is powerful, highly automated, and has a fast hole-forming speed. Compared with traditional hole-forming methods, it can significantly shorten the construction period and accelerate the project progress.

3. Excellent hole formation quality: Relying on an advanced electronic control system, the rotary drilling rig can precisely control the depth, verticality and hole diameter of the borehole, effectively ensuring the hole formation quality and reducing deviations.

4. Obvious environmental protection advantages: The static mud wall protection drilling bucket soil extraction process is adopted, which reduces the use and discharge of mud, lowers the pollution to the environment during construction, and conforms to the concept of green construction.

5. Equipment Requirements and Costs: The purchase and maintenance costs of rotary drilling RIGS are relatively high, and the technical requirements for operators are strict, requiring professional training, which increases the investment in the early stage of construction.

6. Limited application scope: In pebble layers, rockfill layers and strata with high rock hardness, the construction efficiency of rotary drilling RIGS will be significantly reduced, and it may even be difficult to form holes. There are certain restrictions on the applicable geological conditions.

Overall, rotary drilling RIGS have prominent advantages in the construction of cast-in-place piles, especially performing exceptionally well in projects with tight schedules and high quality requirements. However, the issues of equipment cost and geological adaptability cannot be ignored either. In actual engineering, it is necessary to comprehensively consider the engineering requirements, geological conditions and cost budget, and reasonably select the hole-forming method to achieve the best construction effect.