小直径超长旋挖桩护壁泥浆质量控制措施

Quality Control Measures for Stabilization Slurry Used in Small Diameter Super-long Swivel-driven Pile

结合某工程实例分析了小直径超长旋挖桩成孔合格率低的原因,分析出"沉渣过厚"和"塌孔"为主因,并提出解决此类问题的技术方法,不仅提高了小直径超长旋挖桩的成孔合格率,而且加快工期和降低了成本。

Combining with a practice engineering example,authors analyze the causes of low qualification rate for small diameter super-long swivel-driven pile,show the thick sediment and hole collapse as the main causes and put forward some solve measures which not only improve qualification rate of the piles,but also speed construction period and reduce cost.