For sandy soil and silt soil, the grouting pressure is ≤2MPa. For cohesive soil, the grouting pressure is ≤1MPa. The thickness of the reinforced cushion is ≥200mm. Reference standard number: "Technical Specifications for Building Pile Foundations" JGJ94 Shanghai Engineering Construction Specifications "Foundation Pit Engineering" Technical Specifications》DG/TJ08-61
T/SCDA 012-2018 history
2021T/SCDA 012-2021 Technical standard for self-stabilizing foundation pit support structure
2018T/SCDA 012-2018 Technical standard for self-stabilizing foundation pit support structure