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在瑞典、芬兰及挪威广泛用石灰土柱作为轻型房屋的基础,提高造在软粘土上的路堤稳定性以及取代板桩及地下连续墙作为开挖的侧向支承。直径0.5m,长度可达15m的石灰土柱是以生石灰就地与软粘土搅拌而成。因而粘土的抗剪强度一般提高5至20倍。本文介绍用石灰土柱加固房屋地基。
Lime columns are widely used in Sweden, Finland and Norway as the basis for light-duty houses. The stability of embankments built on soft clay and the replacement of sheet piles and diaphragm walls as excavation lateral supports are improved. The limestone column with a diameter of 0.5m and a length of up to 15m is a mixture of quicklime and soft clay. Therefore, the shear strength of clay is generally increased by 5 to 20 times. This article describes the use of lime soil columns to reinforce the foundation of a house.