1．范围
本工艺标准适用于工业与民用建筑中地下水位高的软、硬土层泥浆护壁成孔灌注桩工程。
2．施工准备
2.1  材料及主要机具：
    2.1.1  水泥：宜采用325号～425号普通硅酸盐水泥或矿渣硅酸盐水泥。
 1. Range
This technology is applicable to industrial and civil buildings in the groundwater level of soft and hard soil into the pile work Slurry Wall.
2. Construction preparation
2.1 Materials and main equipment:
    2.1.1 Cement: should use 325 ~ 425 ordinary Portland cement or slag cement.