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1概述在现代建筑过程中,地下室建筑均可能面临地下水对其产生的浮力;物理学上对浮力给出了严格的定义及计算方式。地下室体积变大、埋深增加,随之而来其受到的浮力变大。地下室就是一个完整的箱体。当地下水位超过箱体底板时,形成了浮力。当浮力大于建(构)筑物重量时,就可使建(构)筑物漂起。建设者们在实践中不断创造出地下室抗浮的新方案,在付之实施后,取得了成功的经验。从抗浮的行为上看,抗浮方案可归纳为三类。即:自重平衡浮力法;被动加荷载平衡浮力法;主动泄压平衡浮力法。
1 Overview In the process of modern construction, basement buildings may be exposed to the buoyancy of groundwater; physicists on the buoyancy is given a strict definition and calculation. Basement volume becomes larger, buried depth increases, followed by its buoyancy becomes larger. The basement is a complete box. When the local water table over the floor, forming a buoyancy. When the buoyancy is greater than the weight of the building, the building can be floated. Builders have continuously created a new anti-floating basement solution in practice, and succeeded in their implementation. From the anti-floating behavior point of view, anti-floating program can be grouped into three categories. Namely: self-weight balance buoyancy method; passive plus load buoyancy method; active relief pressure buoyancy method.