水利枢纽工程消力池底板综合检测技术

Compre hensive Inspection Technology for Stilling Basin Bottom of a Water Conservancy Project

依据不同强度混凝土之间的介电参数差异、混凝土与基岩之间的弹性差异采用探地雷达法、地震映像法获取消力池底板不同介质的分界面,对重点位置采用半合管钻探技术以及钻孔声波、钻孔电视观察、压水试验等手段,查明消力池混凝土及基础是否存在脱空等缺陷,在本工程中取得了较好的应用效果.

In this paper, GPR(ground penetrating radar) and seismic imaging are used to detect the interface of different media of stilling basin bottom according to different dielectric parameters between concrete of varied strength and different elasticity between concrete and bedrock. Semi-closed pipe drilling technology borehole acoustic wave, borehole television observation, water compression test and other means are used on key locations to find out whether the concrete and foundation of the stilling basin have holes and other defects which accomplishes good results for the project in the paper.