The Background

Soil Types: Plain fill soil, silty clay, mudstone, sandstone.

The settlement area has raft foundation. The west side of the office building has a significant amount of settlement.

Maximum Settlement Amount:213.2mm

The Problem

The project's foundation mainly consists of virgin fill. After compression, the foundation soil experiences serious differential settlement, with poor uniformity. There are also large rocks, numerous and large gaps between soil layers, and high dispersion. Large solitary rocks and cavities may still exist deep in the foundation.

The Solution

Strengthen the backfill soft soil layer within a certain range below the foundation, significantly improving its strength, impermeability, and stability, thereby achieving the purpose of reinforcing the layer. Continue constructing continuous irregular composite pile foundations, forming a new foundation bearing system with the upper reinforced structure, greatly enhancing the foundation bearing capacity.

The Result

Our company's construction process optimized the foundation bearing system, improving the stiffness and stability of the foundation, and effectively enhancing the foundation bearing capacity. The warehouse floor was leveled and repositioned, meeting the project requirements.

Construction Period: 90 days

Total Lift Amount: 40mm