长螺旋钻孔后插钢筋笼灌注桩在基坑支护应用研究

Application research of long spiral bored piles with post-inserted reinforcement cage in excavation support engineering

结合工程实例,介绍了长螺旋钻孔后插钢筋笼灌注桩工艺适用性和施工特点,及其施工流程,并以某工程实例,详细介绍了该施工中几个关键点的控制措施及施工过程中可能出现的成桩缺陷与防治措施。灌注桩检测结果表明,成桩质量好,具有较高的推广价值。

Long spiral bored piles with post-inserted reinforcement cage and the construction process is introduced with the engineering example,and based on the engineering,control measures of key points in the construction and the pile-forming defects and prevention measures that may occur during the construction process are introduced in detail,then the applicability of the technology and construction characteristics is summarized. The pouring pile test results show that the piles are of good quality and deserves wide popularization.