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在进行塔机安装的时候,需要先计算地基的承载力,如果地基承载力无法满足施工升降机设计要求,就需要对地基进行加固,常用的加固方法主要有以下几种:
When the tower crane installation, need to calculate the bearing capacity of the foundation, if the foundation bearing capacity can not meet the design requirements of construction hoist, on the need for foundation reinforcement, the common reinforcement method mainly has the following several:
1、一般处理
1, general treatment
通常是采用夯实法、排水固结法、换土垫层法、振密挤密法等。其中又以换土垫层法更为常用,主要是因为其成本较低,但只能用于地基软弱层较薄的地区。
It is usually made up of tamping method, drainage consolidation method, soil replacement cushion method, vibration compaction method and so on. Among them, the soil cushion method is more commonly used, mainly because of its low cost, but it can only be used in the soft soil layer.
2、桩基加固
2, pile foundation reinforcement
这种方法成本较高,但处理效果较好,适用于浅层土质而又不适宜采用一般处理方法的地区。
This method is of high cost, but the treatment effect is good. It is suitable for the shallow soil and not suitable for the general treatment.

塔机标准节3、加大基础面积
3, increase the base area
仅适用于现场地基承载力与基础设计要求相差不大的情况。
It is only applicable to the situation that the bearing capacity of the ground is not much different from the basic design requirements.
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