The Rational Selection of Rotary Drilling Piles And Perforated Piles

In the construction of building foundations, rotary drilling piles and perforated piles are commonly used piling techniques, each with its own advantages and applicable scenarios. How to make a reasonable choice based on the actual situation of the project has a significant impact on the construction efficiency and quality. The following is an analysis of the key points for choosing between the two from six aspects.

1. Geological condition consideration: Rotary drilling piles are suitable for soft soil layers such as clay and silt, and have a high hole-forming efficiency. Perforated piles perform well in hard geological conditions such as pebble layers and rock strata, effectively breaking hard rocks and ensuring stable hole formation quality.

2. Construction efficiency comparison: Rotary drilling piles, with their efficient rotary cutting and rapid drilling, have a fast construction speed and short construction period in suitable geological conditions. Due to the need for repeated impact and crushing, the hole-forming time of perforated piles is relatively long. Especially in complex geological conditions, the efficiency advantage is not obvious.

3. Environmental protection requirements adaptation: Rotary drilling pile construction features low noise, minimal slurry discharge, and minimal impact on the surrounding environment, making it suitable for areas with high environmental protection requirements such as urban centers. The construction of perforated piles is noisy and the treatment of mud is difficult, so the environmental protection pressure is relatively high.

4. Equipment cost and applicability: The purchase and rental costs of rotary drilling RIGS are high, but they have a high degree of functional integration and can flexibly switch construction modes. Perforated pile equipment is relatively simple and low-cost, but it has poor versatility and requires additional modifications under complex working conditions.

5. Differences in pile formation quality: Rotary drilling piles have high hole formation accuracy, easy control of pile body verticality, and small pile diameter deviation. Perforated piles compress soil by impact, and the frictional resistance on the pile side is large. In projects with high load-bearing requirements, they can provide reliable load-bearing capacity.

6. Project scale and construction period requirements: For large-scale projects with tight schedules and a large number of piles, rotary drilling piles can better meet the progress requirements. Perforated piles are suitable for small-scale projects with loose construction periods, complex geological conditions and high requirements for the bearing capacity of individual piles.

In conclusion, the selection of rotary drilling piles and perforated piles requires a comprehensive consideration of multiple factors such as geology, efficiency, environmental protection, and cost. Only by fully considering the actual needs of the project and weighing the advantages and disadvantages of the two techniques can the most suitable construction plan be selected to ensure the smooth progress of the project and achieve maximum benefits.