影响JJC-1E型灌注桩成孔检测系统精度的因素及改进措施  

Factors Affecting the Precision of JJC-1E Cast-in-Place Pile Hole Diameter Detection System and Measures to Improve the Precision

作　　者：胡朝彬[1,3] 片磊 高承成 崔立强 宋冠樟 HU Chaobin;PIAN Lei;GAO Chengcheng;CUI Liqiang;SONG Guanzhang(Tianjin North China Geological Exploration Bureau,Tianjin 300170,China;Institute of Geology,North China Geological Exploration Bureau,Tianjin 300170,China;Tianjin Huakan Foundation Engineering Testing Co.,Ltd.,Tianjin 300170,China)

机构地区：[1]天津华北地质勘查局,天津300170 [2]天津华北地质勘查局地质研究所,天津300170 [3]天津华勘基础工程检测有限公司,天津300170

出　　处：《工程质量》2020年第12期12-15,共4页Construction Quality

摘　　要：论文介绍JJC-1E型灌注桩成孔检测系统的检测原理,分析影响该系统检测精度的因素,并提出相应的改进措施。对该系统大孔径测量、垂直度检测时扶正器的选择、沉渣测量时的细节控制给出了合理化建议。强调了有效的修正、保养、标定、养护等措施对保持该系统的检测精度具有重要的作用。This paper introduces the principle of JJC-1E cast-in-place pile hole detection system,analyzes the factors affecting the testing precision of the system and puts forward the corresponding improvement measures.Some reasonable suggestions are given for the selection of centralizers in the measurement of large aperture,verticality and the detail control in sediment measurement.It is emphasized that effective correction,maintenance,calibration play an important role in maintaining the detection precision of the system.

关 键 词：钻孔灌注桩 JJC-1E型成孔检测系统 成孔检测精度 孔径 垂直度 仪器养护 

分 类 号：TU711[建筑科学—建筑技术科学]