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较详细地介绍了在含砾砂层中锚杆的施工方法、钻进工艺参数、钻孔防塌和防斜措施、灌浆工艺及注意事项。
The construction method, drilling process parameters, anti-collapse and anti-slope measures, grouting technology and precautions for the anchor in the pebbly sand layer are introduced in more detail.