求翻译：每个柱基础垫层每层压实后,用环刀取1个样检测压实系数,垫层每层振动压实合格后,应立即松铺上一皮砂石层,避免振压好后的垫层过久暴露以至被扰动。砂石垫层施工结束时采用静力触探检测砂垫层的承载力特征值,静力触探点在全部柱基础垫层中选择布置3个点。是什么意思？

Each column after each compaction base cushion, take 1 ring knife-like detecting compaction coefficient, cushion each vibration compaction after they should immediately loose gravel surfaced with a skin layer, avoiding pressure vibration exposure and good bedding for too long after being disturbed. Gravel cushion construction using static sounding test at the end of characteristic value of bearing capacity of sand cushion, static sounding points in all 3 column Foundation layer, select layout.