泥浆护壁钻孔灌注桩施工属于隐蔽工程，成桩质量的好坏直接影响上层结构的安全和建筑物的沉降。
The construction of drilled hole with shaft wall protection by drilling mud belongs to the concealed work, the pile quality influences directly the superstructure security and the building subsidence.
泥浆护壁钻孔灌注桩的嵌岩深度的控制值问题目前尚未明确。
The proper control value of embedded depth in rock of slurry drilled pile, so far has not been determined.
泥浆护壁钻孔灌注桩当桩端持力层为砂土层等非岩石层时，通过桩底压密灌浆能有效地提高单桩承载力。
When the bearing stratum at the tip of bored pile is sandy soil stratum, the method of pile tip pressure grouting can effectively improve the bearing capacity of single piles.
泥浆护壁钻孔灌注桩的施工方法与常见质量通病的处理方法。
The construction methods of slurry hole-boring cast-in place pile and the common quality diseases treatments are discussed.
介绍了影响泥浆护壁钻孔灌注桩单桩承载力的主要因素，后压浆技术的加固机理、施工工艺流程及施工要点。
The strengthening mechanism, construction technological proceedings and the main points to be noticed in construction with post grouting technique are given.
介绍了影响泥浆护壁钻孔灌注桩单桩承载力的主要因素，后压浆技术的加固机理、施工工艺流程及施工要点。
The strengthening mechanism, construction technological proceedings and the main points to be noticed in construction with post grouting technique are given.
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