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采用强夯法处理地基时,需要针对既定的场地土质条件,来估计至少需要采用具有多大夯击功能的设备,才能达到设计要求的处理效果。这就需要建立起土质条件、设备功能与处理效果之间的定量关系。但由于土性指标与强夯参数千变万化,要建立起一个能满足生产需要的精确、统一的关系式比较困难。本文拟通过一些工程实例来给出一个轮廓的经验关系。强夯施工中采用的夯锤重量一定时,机械起重能力愈大,臂杆外伸距离可愈大,操作愈方便;机械起重能力愈小,操作愈不便。为保证起码的工作条件,吊车的允许起重能力最小应为锤重M的1.5倍。所以可以用
When using the dynamic compaction method to treat the foundation, it is necessary to estimate the minimum required equipment with a large slamming function to meet the design requirements. This requires establishing a quantitative relationship between soil conditions, equipment functions, and treatment effects. However, because of the ever-changing soil properties and dynamic parameters, it is difficult to establish an accurate and unified relationship that can meet production needs. This article intends to give an outline of the empirical relationship through some engineering examples. When the weight of the hammer used in the construction process is fixed, the greater the mechanical lifting capacity, the greater the outrigger distance of the boom and the more convenient operation; the smaller the mechanical lifting capacity, the more inconvenient the operation. In order to guarantee minimum working conditions, the minimum lifting capacity of the crane should be 1.5 times the hammer weight M. So you can use