It was rectified by method of preloaded pile underpinning.

采用预压桩托换法后，恢复正常使用功能。

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Design thought and method of underpinning beam, column, foundation and relative joint construction in remodeling office building for Committee of Family Planning in Harbin are introduced.

提出了哈尔滨市计生委办公楼结构改造所需的托换梁、托换柱、托换基础及相关连接构造的设计思路和方法。

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Steel tubular pile underpinning technology is an effective method to develop underground space in retrofitting of existing buildings.

利用微型钢管桩进行基础托换是既有建筑物地下增层改造的有效方法。

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