超大水深及流速条件下铺排施工技术

结合长江南京以下12.5 m深水航道整治一期及二期工程,采用滑板支撑式深水铺排船,在一期工程中完成了35 m水深、2 m/s流速条件下的深水铺排施工,并形成了深水铺排施工工法,在二期工程施工中完成了46 m超大水深条件下的铺排施工,该技术革新了传统的航道整治铺排施工采用滑板吊浮式铺排装备的施工方法,铺排施工效率最快可达1 222.2 m2/h,铺设排体单幅最长642.6 m。

Concrete interlocking blocks construction technology in the condition of large depth-water and velocity

Combined with the first phase and the second phase project of 12.5 m deepwater channel of the Yangtze River downstream Nanjing,using the supporting inclined plate geotextiles-laying vessel,the deepwater sinking soft mattre was constructed.In the first phase of the project under the conditions of 35 m water depth and 2 m/s velocity,the construction method of deep water sinking soft mattre was completed.In the two phase of construction under the 46 m water depth conditions,the sinking soft mattre construction was completed.The construction method of waterway regulation reforms the traditional layout construction using hanging floating skateboard laying equipment.The construction efficiency was up to 1 222.2 m2/h,and paving soft mattre longest single row body is 642.6 m.