Application of Zheng Sai Lithification Flowable Soil Technology in Irregularly Shaped Narrow Backfill Trench Engineering

In the construction of urban central commercial buildings, backfilling narrow foundation trenches after underground structure completion presents challenges.  Traditional backfill methods prove difficult to operate and inefficient in these confined spaces.  Zheng Sai Lithification Flowable Soil effectively resolves this issue with its flowable backfill characteristics and self-compacting properties.

The technology utilizes on-site soil that is processed into a flowable backfill material.  Under gravitational force, this material achieves self-compaction in foundation trenches without requiring vibration, while demonstrating excellent impermeability and high strength.

Test results confirm that the compactness and strength of the backfilled trenches meet design requirements, establishing a solid foundation for subsequent construction phases.