软地基水泥搅拌桩加固及其设计

Reinforcement with Cement-mixed Piles in the Soft Subgrade and the Design Procedures

软弱地基自身强度很低 ,采用水泥搅拌桩处理后 ,水泥搅拌桩及桩间的土所形成的复合地基 ,共同承担了上部结构的荷载 .这种类型的桩与其他类型的桩相比有许多优点 ,在地基工程中得到了广泛的应用 .从复合地基的强度受地基土的成分及物理性质的影响的角度出发 ,阐述了复合地基的设计方法及其要求 .

The soft subgrade has low strength by itself.Reinfoced by cement-mixed piles,however,the earth between the piles shares the load of the structure above with the piles,forming a composite subgrade.Compared to other kinds of piles,the cement-mixed pile demonstrates its several strong points,and so it is widely used in subgrade engineering.The calculation methods for the composite subgrade are given,under a consideration that the strength of a composite subgrade is influenced by its composition of earth and physical properties.