TGS360Pro技术三维正演及其与TSP技术对比试验研究

Three dimensional forward modeling of TGS360Pro technology and its comparison with TSP technology

近年来,我国隧道及地下工程飞速发展,由于前期地质勘察的精度不能完全满足隧道安全施工的基本要求,开展隧道施工超前地质预报工作极为重要.目前国内外隧道超前地质预报技术方法与种类较多,特别是近几年从俄罗斯全新引进的一种TGS技术,该技术引入中国时间较短,相关理论和实践研究工作较少,其有效性亟待进行相关研究工作.本文首先介绍了TGS360Pro超前地质预报技术的原理、工作布置模式及其优势;然后结合三维正演模型,证实了TGS360Pro技术反演算法的准确性;最后选取了同一个隧洞试验环境,将该技术与TSP技术进行了现场对比试验研究,证明了该技术的有效性及其与TSP技术的一致性.文章最后对该技术进行了总结,并对该技术在TBM施工条件的应用进行了分析与展望.

In recent years,tunnel and underground engineering have developed rapidly in China.Because the accuracy of geological survey can not fully meet the basic requirements of tunnel safety construction.It is very important to carry out advance geological prediction of tunnel construction.At present,there are many kinds of advanced geological prediction techniques and methods at home and abroad.Especially a new TGS technology imported from Russia in recent years.The technology has been introduced into China for a short time,and the related theoretical and practical research work is less,so its effectiveness needs to be studied urgently.This paper first introduces the principle,work arrangement mode and advantages of TGS360 Pro advanced geological prediction technology.Then,the accuracy of TGS360 Pro inversion algorithm is verified by combining the three-dimensional forward model.Finally,the same tunnel test environment is selected,and the field comparative test between the technology and TSP technology is carried out,which proves the effectiveness of the technology and its consistency with TSP technology.Finally,the paper summarizes the technology,and analyzes and prospects the application of the technology in TBM construction conditions.