隧道工程初期支护质量检测与处理措施

以麻崖子隧道工程为例，采用地质雷达对其锚喷支护进行质量检测，检测结果发现锚喷支护背后存在空洞，在分析产生空洞的原因后，采取注浆补救措施。经雷达检测结果证实，注浆较为密实，加固效果较好。

Initial Quality Inspection of Support in Tunnel Engineering and the Treatment Measures

Taking Mayanzi Tunnel engineering as an example, ground penetrating radar (GPR) was used to carry out quality inspection in relation to the shotcrete-bolt support thereof. As a result, cavities were found in the back of the support. Through analysis of the causes, grouting was adopted as a remedy. After the treatment, it was proved by GPR inspection that the grouting is densified and leads to good reinforcement effect.