【摘要】 本文依托于某航运工程，通过大型现场试验监测泥岩、砂卵石、土工材料组合回填料中的土压力，根据现场灌砂法试验获得组合回填料的压实度。根据土压力监测数据获得了不同位置处内摩擦角的变化规律，即砂卵石层中内摩擦角较大，泥岩中的内摩擦角较小，形成了泥岩、砂卵石、土工织物组合作为船闸结构墙后回填料的成套工程应用技术。更多还原

【Abstract】 Based on a certain shipping project, the soil pressure in the combination backfill material of mudstone, sand and gravel, and geotechnical materials is measured through large-scale in-site tests. The compaction degree of the combination backfill material is obtained by using the in-site sand filling method tests. Based on soil pressure monitoring data, the variation pattern of internal friction angle at different positions is obtained, that is, the internal friction angle in the sand and gravel layer is larger, while the internal friction angle in the mudstone is smaller. A complete set of engineering application technology of mudstone, sand and gravel, and geotextile combination as backfill material for ship lock structural walls is proposed in this paper.更多还原