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A platform for research: civil engineering, architecture and urbanism
Incremental launching technology of submerged cable-stayed floating tunnel
The invention discloses incremental launching technology of a submerged cable-stayed floating tunnel. The incremental launching technology of the submerged cable-stayed floating tunnel comprises the following steps that all pipe joints of the submerged floating tunnel in a land area prefabrication yard are prefabricated, then the pipe joints are transported to an incremental launching side shore connecting structure through a land area slope tunnel, secondary outfitting is successively carried out, the pipe joints are docked with the subsequent pipe joints and sealed into water, then the pipejoints are in a receiving side shore connecting structure section by section in an incremental launching manner; stay cables are installed on the pipe joints one by one along with incremental launching and pulled to a stay cable anchorage pier; and after incremental launching is completed, concrete on the outer surface of the pipe joints at both ends of the submerged floating tunnel is poured intothe incremental launching side shore connecting structure and the receiving side shore connecting structure, the consolidation of the pipe joints at both ends of the submerged floating tunnel is completed, then the buoyant weight ratio can be adjusted by adjusting the ballast water volume in each pipe joint, and the cable force adjustment of the stay cable is carried out and the sealing anchor iscarried out at the stay cable anchorage pier. The incremental launching technology of the submerged cable-stayed floating tunnel has little influence by wind, wave, current, ship traveling wave and the like, greatly reduces the safety risk of man-machine for offshore construction, and has high construction efficiency and short construction period.
本发明公开了一种水下斜拉式悬浮隧道的顶推工艺。包括先在陆域预制场预制所有的水中悬浮隧道的管节，接着经由陆域斜坡隧道运输至顶推侧接岸结构内，依次进行二次舾装、与后续管节对接和密封入水，然后将管节逐段顶推至接收侧接岸结构内；斜拉索随顶推逐根安装在管节上并牵引至拉索锚碇墩内；顶推完成后，在顶推侧接岸结构和接收侧接岸结构内浇灌水中悬浮隧道两端的管节外表面的混凝土，完成水中悬浮隧道的两端管节的固结，然后通过调节每段管节内的压载水量调节浮重比，同时在拉索锚碇墩上进行斜拉索的索力调整并进行封锚。本发明的顶推工艺，受风、浪、流及船行波等影响很小，使海上施工人机安全风险大为降低，且施工工效极高，施工工期短。
Incremental launching technology of submerged cable-stayed floating tunnel
The invention discloses incremental launching technology of a submerged cable-stayed floating tunnel. The incremental launching technology of the submerged cable-stayed floating tunnel comprises the following steps that all pipe joints of the submerged floating tunnel in a land area prefabrication yard are prefabricated, then the pipe joints are transported to an incremental launching side shore connecting structure through a land area slope tunnel, secondary outfitting is successively carried out, the pipe joints are docked with the subsequent pipe joints and sealed into water, then the pipejoints are in a receiving side shore connecting structure section by section in an incremental launching manner; stay cables are installed on the pipe joints one by one along with incremental launching and pulled to a stay cable anchorage pier; and after incremental launching is completed, concrete on the outer surface of the pipe joints at both ends of the submerged floating tunnel is poured intothe incremental launching side shore connecting structure and the receiving side shore connecting structure, the consolidation of the pipe joints at both ends of the submerged floating tunnel is completed, then the buoyant weight ratio can be adjusted by adjusting the ballast water volume in each pipe joint, and the cable force adjustment of the stay cable is carried out and the sealing anchor iscarried out at the stay cable anchorage pier. The incremental launching technology of the submerged cable-stayed floating tunnel has little influence by wind, wave, current, ship traveling wave and the like, greatly reduces the safety risk of man-machine for offshore construction, and has high construction efficiency and short construction period.
本发明公开了一种水下斜拉式悬浮隧道的顶推工艺。包括先在陆域预制场预制所有的水中悬浮隧道的管节，接着经由陆域斜坡隧道运输至顶推侧接岸结构内，依次进行二次舾装、与后续管节对接和密封入水，然后将管节逐段顶推至接收侧接岸结构内；斜拉索随顶推逐根安装在管节上并牵引至拉索锚碇墩内；顶推完成后，在顶推侧接岸结构和接收侧接岸结构内浇灌水中悬浮隧道两端的管节外表面的混凝土，完成水中悬浮隧道的两端管节的固结，然后通过调节每段管节内的压载水量调节浮重比，同时在拉索锚碇墩上进行斜拉索的索力调整并进行封锚。本发明的顶推工艺，受风、浪、流及船行波等影响很小，使海上施工人机安全风险大为降低，且施工工效极高，施工工期短。
Incremental launching technology of submerged cable-stayed floating tunnel
一种水下斜拉式悬浮隧道的顶推工艺
XU LIXIN (author) / ZHENG RONGPING (author) / ZHAO HUI (author) / SUN HONGCHUN (author) / MO YASI (author) / SUN XU (author) / ZOU XING (author) / LUO HAO (author)
2020-06-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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