基于现状船闸利用方案的风光枢纽改扩建双线船闸总平面布置

Overall layout of double-line ship locks for renovation and expansion of Fengguang hub based on current utilization plan of ship lock

在已有一线船闸枢纽上改扩建双线船闸工程,存在受已有建构筑物限制多、难以有效利用一线船闸结构方案的问题。结合东江航道风光枢纽双线船闸工程,提出2种现状船闸利用思路和相应的平面布置方案:利用老船闸结构为新船闸引航道的方案1和利用老船闸作为施工期围堰的方案2,比选了2种方案在现状结构利用、施工难度、征地面积等方面的优缺点。针对方案2征地面积大的问题,提出大闸曲进直出布置于江侧、小闸直进曲出布置于岸侧的优化措施,充分利用现状船闸的水域和陆域空间,有效减小了征地面积。

The renovation and expansion of the double-line ship lock project on the existing hub of the first-line ship lock face difficulties in being limited by existing buildings and structures,as well as difficulties in effectively utilizing the structure scheme of the first-line ship lock.Combined with the double-line ship lock project of Fengguang hub of Dongjiang waterway,two existing ship lock utilization ideas and corresponding layout schemes are put forward:Plan 1 using the old ship lock structure as the new ship lock approach channel and plan 2 using the old ship lock as the cofferdam during the construction period.Comparison is conducted on the advantages and disadvantages of the two schemes in the current structure utilization,construction difficulty,land acquisition area and so on.In view of the problem of large land acquisition area in Plan 2,the optimization measures are put forward that the main lock is arranged on the river side and the small lock is arranged on the bank side,so as to make full use of the water and land space of the current lock and effectively reduce the land acquisition area.