Title:
METHOD FOR PASSING SILT TRANSPORT PIPELINE THROUGH UNDERWATER BOX CULVERT
Document Type and Number:
WIPO Patent Application WO/2023/029932
Kind Code:
A1
Abstract:
Disclosed is a method for passing a silt transport pipeline through an underwater box culvert, comprising the following steps: arranging a first winch and a first directional wheel above a box culvert opening on a side of a flood drainage station; anchoring an anchor boat on a desilting lake, and arranging a second winch and a second directional wheel on the anchor boat; a diver first connecting one end of a nylon rope to an end of a first steel wire rope, then taking the other end of the nylon rope and passing same from the box culvert opening on the side of the flood drainage station to a side of the desilting lake, and, after bypassing the second directional wheel, winding the rope around the second winch; starting up the second winch so as to enable the nylon rope to pass the end of the first steel wire rope from the box culvert opening on the side of the flood drainage station to the side of the desilting lake; an auxiliary person on the anchor boat connecting the first steel wire rope and a second steel wire rope to a head end and a tail end of a pipe, respectively; and starting up the first winch such that the first steel wire rope pulls the pipe from a culvert opening on a side of the desilting lake to a side of the flood drainage station, and straightening the pipe by means of the second steel wire rope. The present invention can prevent a worker from entering and working in an underwater confined space.
Inventors:
CAO KAIFEI (CN)
LIN XUNPING (CN)
QIU XUYUAN (CN)
QI SHENGLIN (CN)
HU YUNFEI (CN)
JIANG YONGHUI (CN)
HE DAZHI (CN)
HUANG HONGQIAN (CN)
LIN XUNPING (CN)
QIU XUYUAN (CN)
QI SHENGLIN (CN)
HU YUNFEI (CN)
JIANG YONGHUI (CN)
HE DAZHI (CN)
HUANG HONGQIAN (CN)
Application Number:
PCT/CN2022/111699
Publication Date:
March 09, 2023
Filing Date:
August 11, 2022
Export Citation:
Assignee:
CCCC SHANGHAI DREDGING CO LTD (CN)
International Classes:
E02F7/10; E01F5/00
Attorney, Agent or Firm:
SHANGHAI WANGU INTELLECTUAL PROPERTY LAW OFFICE (CN)
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