台北捷運CH221標冷凍工法施工案例

Case Study on Ground Freezing of Contract Ch221 of The Taipei MRT System

楊國榮(G. R. Yang) ； 范陳柏(C. B. Fan) ； 趙際禮(C. L. Chao) ； 王錦伍(K. N. Wong)

《地工技術》 71期 (1999/02) Pp. 83-96

https://doi.org/10.30140/SG.199902.0007

摘要

冷凍工法主要藉由冷凍液經由埋設於地盤中之凍結管，將地盤中之熱發散於大氣中，以使地盤凍結，達到地盤不透水及增加地盤強度之目的。本文介紹此工法之細節，與其應用於台北捷運系統新店線CH221標2A潛盾隧道受損環片更換之施工案例。

關鍵字

冷凍工法 ； 凍結管 ； 測溫管 ； CH221標

並列摘要

The ground freezing technique was used to improve the watertightness and the shear strength of the ground. By transferring the heat in the ground via the brine circulation pipes into the atmosphere, the ground is then frozen. This paper presents the details of ground freezing and the application of this technique to the restoration of the damaged linings of tunnel 2A of Contract CH221 of Taipei MRT.

並列關鍵字

Ground freezing ； Freezing pipe ； Temperature monitoring Pipe ； Contract CH221