High-Rise Building Foundations: A Technical Case Study

Constructing a high-rise building requires a stable and efficient pile foundation. This case study examines the construction of a 60-story skyscraper where the XCMG Used Rotary Drilling Rig and SANY Used Rotary Drilling Rig were integral to project success.

1. Project Overview

The project involved a mixed-use skyscraper located in a seismic zone. Challenges included:

  • Seismic Stability: Designing a foundation capable of withstanding earthquake forces.
  • Variable Soil Conditions: Layers of silt, sand, and rock posed diverse challenges.

2. Advanced Equipment Selection

  • XCMG Used Rotary Drilling Rig: Known for its deep drilling capacity and precision, it performed well in loose soil layers.
  • SANY Used Rotary Drilling Rig: Its durability ensured efficient drilling through rock layers and seismic-sensitive areas.

3. Step-by-Step Methodology

  1. Geotechnical Survey: Soil tests and seismic assessments determined the pile depth and reinforcement requirements.
  2. Drilling Operations:
    • XCMG Used Rotary Drilling Rig drilled 90-meter-deep boreholes in sandy and silty soils.
    • SANY Used Rotary Drilling Rig managed the rocky substratum with advanced drilling techniques.
  3. Concrete Placement: High-strength reinforced concrete piles were installed with tremie methods to ensure structural integrity.

4. Challenges and Solutions

  • Seismic Considerations: Flexible reinforcements were integrated into the piles to absorb seismic forces.
  • Environmental Compliance: Advanced noise-dampening and vibration-reduction systems ensured minimal disruption to the urban environment.

5. Project Outcomes

The use of modern rigs provided multiple benefits:

  • Efficiency: Faster drilling cycles reduced overall project duration.
  • Precision: Automated features ensured accurate borehole placement.
  • Sustainability: Energy-efficient operations minimized environmental impact.

Conclusion

This high-rise foundation project showcases the effectiveness of advanced rotary drilling rigs. The XCMG Used Rotary Drilling Rig and SANY Used Rotary Drilling Rig ensured the project met high standards of safety, efficiency, and sustainability.