Retaining Structures with Double-Row Piles used in Super Soft Soil Foundation Pit

Foundation pit in Nansha Region, Guangzhou was adopted to introduce the control factors in super soft soil when using retaining structures with double-row piles. The design and construction plan of double-row piles used in super soft soil were introduced. The actual construction effect indicate the retaining structures with double-row piles is feasible in super soft soil, and improvement of foundation pit using mixing pile is necessary for soft soil region.