钻孔灌注桩成孔质量检测一体化装置研究  

Study on integrated device for quality detection ofhole-forming of bored cast-in-place pile

作　　者：贺恒 邬德宇 赵建豪 李金峰[1] HE Heng;WU De-yu;ZHAO Jian-hao;LI Jin-feng(CCCC Tianjin Dredging Co.,Ltd.,Tianjin 300461,China;CCCC(Tianjin)Eco-Environmental Protection Design&Research Institute Co.,Ltd.,Tianjin 300202,China)

机构地区：[1]中交天津航道局有限公司,天津300461 [2]中交(天津)生态环保设计研究院有限公司,天津300202

出　　处：《中国港湾建设》2023年第3期23-28,104,共7页China Harbour Engineering

摘　　要：为解决目前钻孔灌注桩成孔质量和沉渣厚度检测步骤繁琐的工程难题,基于接触仪器组合思想,研制改进一种可用来高效检测钻孔灌注桩成孔沉渣效果的装置,该装置包括支撑移动系统、动力驱动系统和检测系统。基于京杭运河长江口门段航道整治工程,测试了该装置的孔径和垂直度测量、沉渣厚度和孔深检测功能。结果表明,改进后的设备相比现有成孔检测设备,可一次性完成成孔指标及沉渣厚度的检测,设备操作简单,适用范围广,检测精度高,时间及劳动成本低。该装置具有在钻孔灌注桩施工工程中大规模应用的潜力,可产生较好的经济效益和社会效益。Based on the idea of contact instrument integration,a device which can be used to effectively detect the result of hole-forming and sediment in bored cast-in-place piles is developed and improved in order to solve the problems of cumbersome detection steps in hole-forming quality and sediment thickness of bored cast-in-place piles.The device comprises a support moving system,a power driving system and a detection system.The function of the device in measurement of borehole diameter and perpendicularity,sediment thickness and borehole depth is tested on the basis of the waterway regulation project of the Changjiang River Estuary on the Beijing-Hangzhou Grand Canal.The results show that,compared with the existing holeforming detection equipment,the improved equipment can complete the detection of hole-forming and sediment thickness at one go.The equipment has the advantages of simple operation,wide application range,high detection accuracy,and low time and labor cost.The device has the potential of large-scale application in bored cast-in-situ pile construction and can produce better economic and social benefits.

关 键 词：钻孔灌注桩 成孔质量 沉渣厚度 质量检测 护岸基础 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程] TU992[交通运输工程—船舶与海洋工程]