Page 96 - 捷運技術 第55期

臺灣首創重大管線遷移-以捷運萬大線∮1650mm自來水幹管不斷水工程為例 | 薛少程等

Received May 06, 2020, accepted August 17, 2020, date of publication October 31, 2020

Taipei MRT Wanda-Zhonghe-Shulin Line

1,650mm Water Main Pipe Migration

Engineering Project

1
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JHIHRONG CIOU , HENGYI LIN , SHANGCI LIN , AN GANG IOU , JHENJHONG
1
3
LIOU , AND SHAOCHENG SYUE 3
1. CECI Engineering Consultant, Inc. Taipei 11491, Taiwan(R.O.C.)
2. Taipei Water Department, Taipei City Government, Taipei 106222, Taiwan(R.O.C.)
3. Second District Project Office, Department of Rapid Transit Systems, Taipei City Government,
Taipei 105037, Taiwan(R.O.C.)
Corresponding authors: Shaocheng Syue (shaucheng@dorts.gov.taipei)
ABSTRACT The MRT project is located in a complex metropolitan area of
underground pipelines. It needs to go through a thorough pipeline survey to ensure
the normal operation of the pipeline function. After investigation, the LG01 station
of the MRT Wanda Line collided with the ∮1,650mm tap water pipe at Nanchang
Road. The water supply scope of the main water pipe includes Xinzhuang District,
Luzhou District, Wanhua District and other places. It is an important maintenance
pipeline and has no other alternative pipelines. If it is necessary to stop water due
to the construction of the LG01 station, it is estimated that the impact will affect
500,000 households. In order to reduce the impact of the construction on this
important maintenance pipeline, the continuous water construction technology is
adopted to migrate the ∮1,650mm tap water main pipe to avoid the impact of water
stoppage.
In order to solve the problem of water stoppage before the migration or renewal
of the∮1,650mm tap water main pipe, Department of Rapid Transit Systems Taipei
City Government and Taipei Water Department first introduced the continuous
water construction technology of large-diameter tap water pipes from abroad.
For the first time in this project, the large-diameter continuous water construction
technology was introduced in the MRT project in Taiwan. The construction
operation includes working wells, split saddle belts, bifurcation pipe hydraulic
gland, operation valve, punching machine, valve body and temporary relocation
piping. In addition to the special nature and necessity of this technology, this
technology has the demonstration significance of introducing new construction
methods and new technologies. On the whole, the continuous water construction
technology is a comprehensive component of operators, special machines and
process precision. In addition to well-trained and skilled workers, the precision

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