基于SASW的水工混凝土质量检测技术研究  

Research on Quality Inspection Technology of Hydraulic Concrete Based on SASW

作　　者：傅魁利 FU Kui-li(Dezhou Lijiaan Irrigation Area Operation Maintenance Center,Dezhou 251500,Shandong,China)

机构地区：[1]德州市李家岸灌区运行维护中心,山东德州251500

出　　处：《水利科技与经济》2022年第5期144-148,共5页Water Conservancy Science and Technology and Economy

摘　　要：基于表面波频谱法(SASW法),对引水隧洞衬砌混凝土质量检测进行探讨分析。结果表明,R波波速与混凝土强度之间呈良好的指数型函数关系,当R波波速>1800 m/s时,混凝土强度即可达到C25的设计标准;该隧洞衬砌混凝土强度基本满足设计要求,但存在比较严重的脱空现象,而且Ⅴ类围岩约有40%的检测点不能满足衬砌厚度的设计要求,需要对这些位置进行重点加固补强。Based on the surface wave spectrum method(SASW method),the quality detection of lining concrete of headrace tunnel is discussed and analyzed.The results show that there is a good exponential function relationship between R-wave velocity and concrete strength.When R-wave velocity>1800 m/s,the concrete strength can reach the design standard of C25;the strength of the tunnel lining concrete basically meets the design requirements,but there is a serious void phenomenon.Moreover,about 40%of the detection points of class V surrounding rock can not meet the design requirements of lining thickness,so it is necessary to strengthen these positions.

关 键 词：表面波频谱法 衬砌混凝土 强度 厚度 脱空现象 

分 类 号：TV544[水利工程—水利水电工程]