地质力学模型试验新技术研究进展及工程应用  

RESEARCH PROGRESS OF GEOMECHANICAL MODEL TEST WITH NEW TECHNOLOGY AND ITS ENGINEERING APPLICATION

作　　者：王汉鹏[1] 李术才[1] 郑学芬[2] 朱维申[1] 

机构地区：[1]山东大学岩土与结构工程研究中心,山东济南250061 [2]山东城市建设职业学院,山东济南250014

出　　处：《岩石力学与工程学报》2009年第A01期2765-2771,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家高技术研究发展计划“863”计划重点项目(2007AA11Z131);中国博士后科学基金项目(20080431200);山东省博士后创新项目(200803041)

摘　　要：介绍地质力学模型试验的研究进展,包括新型相似材料、组合式模型试验装置及应变、位移量测新技术。新型相似材料能更好地模拟工程岩体,且价格低、易干燥、可重复利用。研制的新型组合式模型试验台可自由组装、刚度大、整体稳定性好,液压加载系统可实现自动伺服控制和梯度加载。应变测试采用先进的高速静态应变采集分析系统和光纤测试技术,模型内部位移采用研制的光栅式微型多点位移计测量,隧洞表面位移采用内卡规、摄影测量和CCD激光位移传感器测量。上述测量手段具有自动化、高精度、受干扰小的特点,可得到更精确的试验结果。最后,以工程为例说明地质力学模型试验在分岔隧道研究中的应用。The research progress of geomechanical model test are introduced, including new model material, combination test apparatus and new measurement technologies of strain and displacement and so on. New model material can simulate engineering rock mass better and has characters of low cost, easily drying and recycling. 他 The developed combination test apparatus can assemble freely and has high stiffness and good integral stability. Hydraulic pressure loading system can implement automatic servo-controlled and ladder-shaped loading. Strain can be measured by advanced high-speed static strain collection analysis system and fiber measurement technology. Model interior displacement can be measured by the developed fiber Bragg grating mini-type multi-point extensometer. The surface displacement of tunnel can be measured by calipers, photograph measure and CCD laser displacement sensor. These measuring methods mentioned above have characters of automatization, high precision and less disturbance, which can get more accurate test results. Finally, an example is provided to illuminate the application ofgeomechanical model test in forked tunnel research.

关 键 词：地质力学 模型试验技术 研究进展 工程应用 

分 类 号：P55[天文地球—构造地质学]