强夯法地基施工发展的必要性,地基处理方法有很多,近年来由于经济快速发展,可用土地数量逐年减少,“开山挖沟,填土造地”,只要动土,就需要地基处理。
The necessity of the development of dynamic compaction method for foundation construction, there are many methods for foundation treatment. In recent years, due to the rapid economic development, the available land has been decreasing year by year. "Cutting mountains and digging trenches, filling soil to make land" requires foundation treatment as long as soil is excavated.
相比较高楼大厦需要的打桩工艺,建设工业厂房,机场,高速公路,港口等大面积需要复合地基承载力的建设项目地基处理就不太合适了,这些项目类型需要复合地基承载力均匀,大多需要独立基础,“强夯法”地基施工这种工法应运而生,质量好,效率高,造价低是强夯法的优点。 “
Compared to the pile driving technology required for high-rise buildings, the foundation treatment for large-scale construction projects such as industrial plants, airports, highways, ports, etc. that require composite foundation bearing capacity is not very suitable. These types of projects require uniform composite foundation bearing capacity, and most of them require independent foundations. The "dynamic compaction method" for foundation construction has emerged, which has the advantages of good quality, high efficiency, and low cost. “
针对这方面的知识我们应该了解到的是强夯和强夯置换法是用起重设备将很重的夯锤(一般10~40t)起吊到必定高度(一般10~40m),然后使其下落,运用其发生的较大的冲击能对土进行强力夯实,以行进其强度、下降其紧缩性的一种地基加固处理办法。强夯法运用的设备简略,施工速度快,加固作用好,经济效益明显。工程实践证明,经强夯处理后的地基,其承载力可行进2~5倍,地基紧缩性可减小2~10倍,有用加固深度可达5~15m,可消除饱满砂土地基的液化
What we should understand about this knowledge is that dynamic compaction and dynamic compaction replacement method are a foundation reinforcement treatment method that uses lifting equipment to lift a heavy compaction hammer (usually 10-40t) to a certain height (usually 10-40m), and then let it fall. The large impact energy generated by it is used to compact the soil strongly, in order to increase its strength and reduce its compactness. The equipment used in the dynamic compaction method is simple, the construction speed is fast, the reinforcement effect is good, and the economic benefits are obvious. Engineering practice has proven that after dynamic compaction treatment, the bearing capacity of the foundation can be increased by 2-5 times, the compactness of the foundation can be reduced by 2-10 times, and the effective reinforcement depth can reach 5-15m, which can eliminate liquefaction of full sandy soil foundation