Page 20 - 捷運技術 第38期

14 黃敏祥 新莊線CK570G標潛盾到達水平冰凍工法

新莊線CK570G標潛盾到達水平冰凍工法

黃敏祥
摘要

臺北地區地下水水量豐富，捷運工程施工也愈往地下施工且深度日益增加，冷凍工法的
使用愈漸頻繁，就其原理及施工步驟與管理亦已漸行熟悉，惟就冷凍中的熱力學計算對土木

工程師實屬陌生，故對熱量的損失估算、隔熱及冷凍機的選擇無所依循，故藉此篇幅謹做投
石性提引，盼引諸工程師能更為探討與研究使此工法得以完整的掌握。
關鍵詞：冷凍工法、CK570G標、冷凍負荷、熱傳導率、歷時溫度變化

Freezing Method Applied on the Tunnel-Breakthrough Construction of Taipei

MRT Xinzhuang Line's Contract CK570G
Min-Hsiang Huang

Abstract

MRT tunnel construction in Taiwan is being conducted at greater and greater depths. To
overcome the plentiful amounts of ground water found in deeper excavations, the freezing method
is used universally. The theory, operation and management of the technique is gradually becoming
familiar. However, in light of the thermodynamics calculations applied to freezing construction, the

knowledge of heat loss, heat-resistance as well as the choice of freezing machine still being strange
to civil engineers, this paper addresses how to estimate heat loss and how to choose an optimal
equipment for treating frozen ground earth, by taking the freezing method conducted on Taipei
MRT's CK570G as an example

Keywords: ground frozen method, thermodynamics

臺北市政府捷運工程局南區工程處工務所主任 huangmh@trts.dorts.gov.tw