The mechanical equipment used in dynamic compaction and dynamic compaction replacement construction is very common, and the use of skills is simple. The bearing capacity of foundation after compaction is obviously strengthened by about two to five times, which can effectively avoid settlement or deformation. The important thing is that the construction period may be shortened by half, and the cost can be saved by a large part. Dynamic compaction support method is to change the soil quality of the deep foundation pit by using greater strength of compaction, so as to make the soil quality meet the needs of foundation pit support.

强夯置换的施工方法简单来说就是强盛的夯击作使劲使碎石或者块石等等放弃资料连续一直的挤入到地基土层中，而后重复屡次的夯击以及填充土层，直到可能达到所须要的持力层，这时就能形成结实坚固的墩柱体。地基土层名义禁受的负载能量会通过该墩柱体传输持力层，那么就已达到强夯支护的土层特点标准。

The construction method of dynamic compaction replacement is simply to use strong compaction to force the crushed stone or block stone into the foundation soil layer continuously, and then repeatedly tamp and fill the soil layer until it can reach the required bearing layer. At this time, the solid pier column can be formed. The nominal load energy of the foundation soil layer will be transmitted to the bearing layer through the pier column, so it has reached the soil characteristics standard of dynamic compaction support.

对深基坑支护工程，强夯公司在履行强夯或者强夯置换作业之前，要进行止水帷幕的施工操作，而后等待该流程竣工之后，准备降水到深基坑，使深基坑地下水的位置得低于强夯地基名义一米五的高度，同时在东面西面北面这三个方向要依照一比一点二的比例将边坡天然开挖到标高参数值的半米，接着履行回填土强夯施工，请求依照个别强夯的效力处理土钉支护工程。

For the deep foundation pit support project, before the dynamic compaction or dynamic compaction replacement operation, the dynamic compaction company should first carry out the construction operation of the water stop curtain, and then wait for the completion of the process, prepare to precipitation to the deep foundation pit, so that the groundwater position of the deep foundation pit is lower than the nominal height of 1.5 meters of the dynamic compaction foundation, At the same time, in the three directions of East, West and North, the slope shall be naturally excavated to half a meter of the elevation parameter value according to the ratio of 1:1.2, and then the backfill dynamic compaction construction shall be performed, and the soil nailing support engineering shall be treated according to the effect of individual dynamic compaction.