都會區舊地下室拆除之開挖工程

Works of Old Basement Removing for Deep Excavation in Urban Area

蔡錦松(Jiin-Song Tsai) ； 周立德(Lee-Der Jou)

《地工技術》 53期 (1996/02) Pp. 15-24

https://doi.org/10.30140/SG.199602.0002

摘要

都市更新情況下，經常遇到正常深開挖工程進行前，必須將原有建築物遺留下來之舊地下室先行拆除的工作。由於都會區建物緊鄰，拆除工作往往影響到鄰近地盤，甚至造成鄰產損傷。本文主旨在於提供有效的施工方法，並從土壤力學中解壓－再壓的觀念，說明土壤變形之難恢復特性，進而討論拆除工作中，外力支承轉換過程的重要性。文章中並以兩處工地實地完成的成功案例，作為往後工程之參考。

關鍵字

舊地下室 ； 深開挖工程 ； 都會區

並列摘要

Removing the basement of old building before normal deep excavation is a commonly met situation today for the development of urban renewing. The disturbance caused by destorying the old basement may affect or even further damage the adjacent properties surrounding due to the congested allocation of buildings. The present paper is to describe useful procedures for construction. The importance of loading support transformation by a neat construction procedure based on the unloading-reloading concept of basic soil mechanics is also included. Two cases are also presented to give examples of successful work for the current concern, and therefore to provide typical procedure that engineers can follow hereafter.

並列關鍵字

old basement ； deep excavation ； urban area