bore hole-top-enclosed grouting method
bore hole-top-enclosed grouting method
钻孔-顶部封闭注浆法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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When the bore hole-top-enclosed grouting method is used to conduct high-pressure curtain grouting, shallow weathered broken rock is easy to be split, resulting in excessive grout loss.
采用孔口封闭灌浆法进行高压帷幕灌浆时，对于浅层风化破碎岩体易产生多次劈裂而流失过多浆液造成浪费。
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