适用于模拟复杂地质条件的微型TBM试验系统研制及应用

为研究TBM掘进隧道复杂地质的演化过程及破坏特征，研制了适用于复杂地质条件的微型TBM模型试验系统，主要由微型掘进装置、多功能岩箱、微型掘进机工位平移装置、四联液压系统以及微型掘进机掘进控制系统组成。该系统可实现推进速度0~50 mm/min可调、刀盘转速0~10 r/min可调、刀盘最大转矩可达1 000 N·m、刀盘最大安全掘进距离可达1 100 mm； 可以进行半断面可视化掘进和全断面高地应力模拟掘进，并提前了解TBM掘进复杂地质时隧道应力的变化规律，为现场高地应力大埋深复杂地质下TBM掘进提供可靠的参考资料。

Development and Application of a Micro Tunnel Boring Machine Test System Suitable for Simulating Complex Geological Conditions

To investigate the evolution process and damage characteristics of complex geology during tunnel boring machine (TBM) tunneling, a micro TBM model test system suitable for complex geological conditions is developed. The system comprises a micro tunneling device, multi functional rock box, micro tunneling machine position translation device, quadruple hydraulic system, and micro tunneling machine tunneling control system. The system can realize the adjustable advance speed of 0~50 mm/min, the adjustable speed of the cutterhead of 0~10 r/min, the maximum torque of the cutterhead of 1 000 N·m, and the maximum safe driving distance of the cutterhead of 1 100 mm. Furthermore, it can perform half section visual tunneling and full section high ground stress simulation tunneling and obtain the change law of tunnel stress during TBM tunneling in complex geology in advance, providing a reliable reference for TBM tunneling in complex geology with large buried depth and high ground stress on site.