The Background

Geological conditions: The main soil types are backfill soil, clay, and highly weathered mudstone layers.

The structural form is frame-supported shear wall, and the foundation is flat slab raft foundation.

Height of the settlement residential building: 113m.

The Problem

The foundation is situated on a highly weathered rock layer. Despite the stability of the Tertiary highly weathered rock formation, the compressibility varies, making it an uneven foundation. Settlement occurs due to insufficient bearing capacity of the local foundation bearing stratum.

The Solution

Our company, after expert validation, addresses the issue through a comprehensive application of "composite foundation reinforcement and strengthening" and "irregular composite pile foundation" techniques. This ultimately enhances the overall stability of the building foundation and meets the bearing capacity requirements, achieving the goal of reinforcing and lifting the building foundation.

The Result

Our company's professional technical team, utilizing superb technology, successfully corrected the building's southward tilt to 6mm and adjusted the tilt rate to 0.5‰, meeting the original structural design's verticality standards. This marks the completion of the building's lifting and rectification tasks.

Construction Period: 20 days

Total Lift Amount: 25mm

Tilt Correction Amount: 6mm

Tilt Rate Adjustment: 0.5‰