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卵礫石層深開挖案例

Cases for Deep Excavation in Gravel Layer

摘要


卵礫石層之剪力強度及透水性高於一般之砂、粘土層,因此卵礫石層中深開挖之特性與一般土層不同。本文針對三個位於台北縣卵礫石層中之深開挖進行描述,並說明其與一般土層深開挖不同之處。這些案例指出,卵礫石層對連續壁及支撐造成之應力較低,壁體變形亦小,反而是地下水之滲流控制為連續壁施工及地下室開挖之重點。

關鍵字

卵礫石層 深開挖

並列摘要


The shear strength and permeability of gravel layer are in general higher than those of sandy or clayey materials, and the behavior of deep excavation in gravel layer is different as a result. This paper describes three deep excavation sites located in Taipei county, which were mainly excavated within gravel layer, and the characteristics of monitoring data are discussed. These cases indicated that pressure acting on diaphragm wall and internal struts were relatively small for deep excavations in gravel layer, and the wall displacement was small as well, while the control of groundwater flow was a main issue during diaphragm wall construction and subsequent basement excavation.

並列關鍵字

gravel layer deep excavation

被引用紀錄


林卓民(2010)。以經驗方法評估潛盾隧道施工遭遇卵礫石地盤引致之地表沉陷〔碩士論文,國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842/NCTU.2010.00725

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