深部岩层不良地质构造地震层析成像技术研究

以中铝公司铝土矿运输巷道和金川公司镍矿978探矿道为工程背景,对TRT6000地震层析成像技术检测原理、识图方法、巷道工程概况进行介绍,对不良地质构造进行定性、定量的预报,为巷道快速掘进和稳定性分析提供详细的地质依据。探测结果与巷道后期开挖情况对比表明：TRT6000超前探测技术对不良地质构造灵敏度高,探测距离远,勘测结果准确、直观、全面。初步探讨TRT6000在深部巷道探测方面的局限性,同时指出在深部巷道超前探测试验中,TRT6000地震层析成像技术需注意的问题,研究结果对类似工程实践具有一定的参考价值。

Reseach on geological anomalous structure in deep rock strata by using seismic tomography technique

Based on the haulage laneway of chinalco bauxite and 978 prospecting laneway of nickel minerals of Jinchuan company,a detailed introduction about the detection principle,recognition method of TRT6000 and laneway project profile was made so as to afford a qualitative and quantitative forecast for geological anomalous structure,which provides geological basis for the tunneling operation and stability analysis. By comparing the detection results with the late excavation situation of laneway,it can be found that advanced detection technology of TRT6000 has a higher sensitivity to defective geological conditions and long detection range. Meanwhile,the limitations of TRT6000 for deep laneway detection are discussed,and some suggestion that the seismic tomography technology of TRT6000 should notice in the advanced detection experiment of deep laneway is pointed out,which provides reference for similar engineering applications.