Three-dimensional multi-defense-line double-raft damping structure suitable for nuclear power stations in soft soil areas

• Main Authors: FAN HONG, DONG ZHANFA, ZOU YUWAN, YANG YANG, GONG WEIMING, DAI GUOLIANG
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2020
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a three-dimensional multi-defense-line double-raft damping structure suitable for nuclear power stations in soft soil areas. The structure comprises piles, gravel damping cushion layers arranged on the upper surfaces of the piles, lower rafts arranged on the gravel damping cushion layers; underground shear walls are arranged around the lower rafts; upper rafts are mounted in middles of the lower rafts through a set of three-dimensional damping devices and eddy current damping devices arranged at intervals; the upper rafts are provided with nuclear power station double-layer safety shell structures and annex structures; the nuclear power station double-layer safety shell structures are positioned in middles of the annex structures; the eddy current damping devices are arranged between the underground shear walls and the side walls of the annex structures; and upper cover plates are arranged between the tops of the underground shear walls and the annex structures.The structure is provide