求翻译：孔内排出或抽出的泥浆手摸无2～3mm颗粒，泥浆比重≯1.1，含砂率＜2%，粘度17～20s；故浇筑水下混凝土前柱桩孔底沉渣厚度≯5cm（入岩桩），摩擦桩≯15cm。严禁采用加深钻孔深度方法代替清孔作业。是什么意思？

Discharge out of the mud hole, or no hand touch 2 ~ 3mm particles, the mud weight ≯ 1.1, sand <2%, viscosity 17 ~ 20s; it before pouring underwater concrete piling hole bottom sediment thickness ≯ 5cm (into the rock pile), friction piles ≯ 15cm. Prohibited the use of better methods of drilling de

Holes in the mud pump discharge or hands No 2 ~ 3mm particles, mud weight, Dep 1.1 included sand < 2% rate, viscosity 17 ~ 20 s under water; it is pouring concrete piling the bottom of the hole before DEP 5cm thick dregs (into the rock piles, friction piles ) DEP 15 cm . Prohibited Methods used i

In the hole discharges the mud which or extracts to trace the non-2~3mm pellet, the mud weight ≯1.1, sandy rate

Discharge hole or the extracted mud touch 2~3mm free particles, ≯ 1.1 proportion of mud, sand content of < 2%, viscosity 17~20s, so before pouring underwater concrete cylinder pile bottom sediment thickness ≯ 5cm (into the rock pile), the friction pile ≯ 15cm. Is strictly prohibited to enhance dr

Discharge out of the mud hole, or no hand touch 2 ~ 3mm particles, the mud weight ≯ 1.1, sand <2%, viscosity 17 ~ 20s; it before pouring underwater concrete piling hole bottom sediment thickness ≯ 5cm (into the rock pile), friction piles ≯ 15cm. Prohibited the use of better methods of drilling de