基桩钻芯法与孔内摄像技术综合应用案例——以某桥梁灌注桩偏移检测为例

Comprehensive Application Case of Core Drilling Method and Video Monitor Test——Taking a Bridge Bored Pile Offset Test as an Example

灌注桩钻芯法检测直接、可靠,可以判定桩身的连续性及完整性,但对于桩身的横向裂缝无法准确判断,存在其自身的局限性。文章结合桥梁灌注桩偏移检测实例,应用钻芯法结合孔内摄像技术,对基桩工程质量进行综合判断。实践证明,引入孔内摄像技术,可以有效弥补钻芯法在检测基桩完整性方面的局限性,精准判断基桩是否存在断裂,可以作为灌注桩钻芯法检测的一种验证方法。

The drilling core method of bored pile is intuitive and accurate,it can judge the continuity and integrity of the pile,but the core drilling method also has its own limitations,the core drilling method is difficult to accurately determine the horizontal cracks. The combined method of drilling core method and video monitor test is used to analysis the pile foundation engineering quality in this article. This case has prove the video monitor test just can make up for the deficiencies of the core drilling method,and the video monitor test just can judge the fracture of the pile accurately,also it can used as a validation method for the core drilling method of bored pile.