The paper introduces the influence of mud proportion on the excavated hole, the hole cleamng of the cast-in-place and concreting.
介绍了泥浆比重对钻孔灌注桩成孔、清孔及混凝土灌注的影响，并提出相应的技术措施。
2
From the aspect of raw materials, proportioning of concrete, concreting, acceptance of concrete engineering quality, the paper discusses quality control of concrete engineering.
从原材料、混凝土配合比、混凝土浇筑、混凝土工程质量验收等方面论述混凝土工程的质量控制。
3
The paper introduces quality control technologies for concreting work, curing of beams, stretching and pressure grouting in the course of bridge precasting in the frigid plateau region.