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针对珠海大桥覆盖层极软、基岩极硬的特殊工程地质条件，本文介绍了大孔径钻孔灌注桩在护筒埋设、泥浆护壁及漏浆场孔的处理方法．并在大桩深孔中采用黄泥造浆获得良好护壁效果。
Aiming at the special engineering geological conditions of Zhuhai Bridge with very soft cover and very stiff bedrock, this paper introduces the treatment method of the large diameter bored piles in the casing embedment, mud retaining wall and mud hole. And in the large pile deep hole in the use of yellow mud to obtain a good wall effect.