长江12.5 m深水航道工程新型生态联锁块排十字块预制及施工工艺

摘要

From T11+650 to T12+685 of the second Tongzhousha section of phaseIproject of 12.5 m deep-water navigation channel from Nanjing in the Yangtze River, the beach elevation is between-0.5 and 1.0 m. This area had about 1 000 000 m2 of beach face, which was used as a test section of ecological mattress. The eco-interlocking block- mattress mainly uses the geogrid for bed, and the concrete cross block is paved above it. The hard concrete is used for pressing into the cross block of eco-interlocking block-mattress, the precast technology is mature, the precast speed is quick, the concrete blocks have good quality, and the ecological mattress can obtain good beach protection and ecological protection.%长江南京以下12.5 m深水航道建设一期工程通州沙域标段T11+650-T12+685段，滩面高程-0.5~1.0 m之间，在该区域存在1块面积约为100万m2的滩面区，作为生态排试验段。生态联锁块排采用土工格栅铺底，上面铺设混凝土十字块的结构形式。采用干硬性混凝土压制生态排十字联锁块，预制工艺成熟，预制速度快，混凝土块体质量好，生态排取得良好的护滩与生态保护效果。