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

作　　者：胡朝彬[1,2] 王宝勋[1,2] 罗冬华 刘圣勋 宋冠樟 张维国[1,2] 

机构地区：[1]天津华北地质勘查局 [2]天津华勘基础工程检测有限公司,天津300170 [3]天津华勘岩土工程有限公司,天津300181

出　　处：《探矿工程（岩土钻掘工程）》2014年第8期46-49,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

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。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.

关 键 词：钻孔灌注桩 成孔质量 检测系统 孔径 倾斜度 沉渣厚度 

分 类 号：TU473.14[建筑科学—结构工程]