道路基础工程钻孔灌注桩施工技术分析及重难点应对措施

Analysis of Construction Technology for Drilling and Grouting Piles in Road Foundation Engineering and Countermeasures for Key and Difficult Points

研究了道路基础工程钻孔灌注桩施工技术以及重难点应对措施,在掌握工程概况的基础上,从试桩施工、工艺确定、测量放线、埋设护筒、钻进成孔、清孔处理等方面出发,总结了钻孔灌注桩施工技术要点,并针对施工过程中容易产生的成孔质量问题和导管堵漏问题进行了分析,提出了有效的应对措施。

The paper studied the construction technology analysis and key and difficult measures for drilling and grouting piles in road foundation engineering.Based on the understanding of the engineering overview,the key points of drilling and grouting pile construction technology were summarized from the aspects of pile testing construction,process determination,measurement and layout,buried casing,drilling and hole cleaning treatment,etc.The quality problems of drilling and grouting piles that are prone to occur during the construction process were analyzed,and effective measures were proposed.