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1·It has guiding meaning to the quality control of the underwater concrete pile grouting.

对桩身水下混凝土灌注的质量控制具有一定的指导意义。

2·The key point in making underwater concrete of drill hole grouting pile is that it requires high fluidity.

钻孔灌注桩水下混凝土配制的关键是要求流动性要好。

3·The domestic study on the performance of reinforced non-dispersible underwater concrete structures is still blank.

对于水下不分散混凝土结构的性能，国内的研究还是空白。

4·Some concrete construction control measures are proposed to ensure the piling quality of grouting underwater concrete.

提出了具体的施工控制措施，保证了灌注水下混凝土的成桩质量。

5·By analysing common trouble of tremie method pouring underwater concrete, the paper discussed preventive and treatment measures.

通过对导管法灌注水下砼常见故障的分析，阐述预防和处理措施。

6·According to the characteristic of the cracks in underwater concrete structure that are full of water, a new type of high performance composite grouting was designed.

根据水下结构混凝土裂缝中富含水分的特点，设计一种高性能复合注浆修补材料。

7·Combining the construction practice of drilling piles, it mainly introduces some experience and understandings to quality assurance of underwater concrete construction.

结合钻孔灌注桩的施工实践，重点介绍保证水下混凝土施工质量的一些经验和体会。

8·Discusses the construction quantity problems which appears in the borehoh impregnator and underwater concrete depositing process, and puts forward its prevention measures.

对钻孔灌桩和水下混凝土灌注过程中出现的施工质量问题进行了探讨，并提出了其防治措施。

9·Anti dispersion agent for low fluidity loss underwater concrete was prepared with soluble high molecular polymer and tests on anti dispersion and fluidity loss were carried out.

采用速溶高分子聚合物，制成低流动性损失水下混凝土用抗分散剂，并进行抗分散性、流动性损失试验。

10·This paper deals with materials, design parameters. construction batch strength and design of mix proportion for underwater concrete cast in a major diameter cast in place pile.

论述大直径灌注桩水下浇注混凝土时的材料选择、设计参数选择、施工配制强度及配合比设计。