钻孔灌注桩成孔质量检测技术开发应用研究

Study on Development and Applicaton of Hole Quality Detection Technology for Bored Grouting Pile

摘要:

充分利用JJC-1D型钻孔灌注桩成孔质量检测系统，对所测孔径范围进行了扩展，运用分方位四次测量法提高了孔斜度检测精度，并通过实测泥浆电阻率、沉渣（大浓度泥浆）的电阻率，进行试验室研究、对比、分析，形成了检测沉渣厚度的经验参数，取得了较好的应用效果。

Abstract:

By the full use of JJC-1D quality detection system for hole quality of bored grouting pile, the range of measured hole diameter is extened. The hole inclination detection accuracy is improved by 4-azimuth detection method, the actual measurement of mud resistivity and sediment (high concentration mud) resistivity are comparatively analyzed in laboratory to obtain the experience parameters for detection on sediment thickness, by which good results are achieved.