玻璃钢锚杆锚固质量声波检测技术

针对大冶铁矿玻璃钢锚杆锚固质量检测手段单一、检测参数有限的现状，应用声波检测技术，对大冶铁矿井下巷道玻璃钢锚杆锚固质量进行抽样检测。在随机抽取的35根锚杆中，玻璃钢锚杆锚固质量合格率为85.7%，与支护巷道的实际情况相符，说明应用声波检测技术对玻璃钢锚杆锚固质量进行检测是可行的。检测结果分析表明,影响大冶铁矿玻璃钢锚杆锚固质量的主要因素是玻璃钢锚杆的锚固长度以及玻璃钢锚杆与围岩之间的锚固剂密实度。为此从钻孔深度、锚固剂填塞数量、锚杆杆体插入深度、锚固剂浸泡时间等方面，提出了相应的锚固质量控制对策。玻璃钢锚杆锚固质量声波检测技术可为大冶铁矿玻璃钢锚杆锚固质量的控制提供指导，对实现矿山安全高效开采具有较大的应用价值。

Sonic Wave Testing Technology in Anchoring Quality of FRP Bolt

Aimed at the current situation of FRP bolt's single anchoring quality testing technology and limited testing parameters in Daye iron mine，sonic wave testing technology is applied in the sampling inspection of FRP bolt's anchoring quality of underworkings in Daye Iron Mine.The acceptability of the FRP bolt's anchoring quality in 35 random samples is 85.7%，which is consistent with the actual situation of the supporting roadway.It is indicated that it is feasible to apply the sonic wave testing technology to detecting the anchoring quality of FRP bolt; The test results show that the main influencing factors of the FRP bolt's anchoring quality in Daye Iron Mine are anchoring length and anchoring agent compactness between FRP bolt and surrounding rock，Therefore the corresponding control countermeasures for anchoring quality was put forward from respects of drilling depth，anchoring agent filling quantity，insert depth anchoring bolt body，anchoring agent soaking time.The sonic wave testing technology of FRP bolt's anchoring quality provides a reference for the control of anchoring quality，and has a great application value to realize safety and efficient exploitation in Daye Iron Mine.