(1) Clean and level the construction site. When the topsoil is soft, a layer of 1.0 ~ 2.0 m thick sand and gravel construction layer can be laid;
(2) Mark the tamping point position for the first time and measure the site elevation;
(3) The crane is in place, and the rammer is placed at the tamping point;
(4) Measure the elevation of the hammer top before tamping;
(5) Tamp and record the depth of rammed pit one by one. When the tamping is too deep and it is difficult to lift the hammer, stop tamping, fill the pit flush with the top of the pit, record the amount of filler, and so on until the specified tamping times and control standards are reached, and complete the tamping of a pier. When the soft soil extrusion around the tamping point affects the construction, it can be cleaned at any time, and gravel is laid around the tamping point to continue the construction;
(6) According to the principle of jumping from inside to outside and staggered, complete the construction of all tamping points;
(7) Leveling the site, tamping the site surface with low energy, and measuring the site elevation after tamping;
(8) Laying cushion and compacting by layers.
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