软岩水-力耦合的流变损伤多尺度力学试验系统

项目名称： 软岩水-力耦合的流变损伤多尺度力学试验系统

项目编号： No.41227002

项目类型： 专项基金项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 周翠英

作者单位： 中山大学

项目金额： 320万元

中文摘要： 大型科学仪器设备的研制是工程地质学科领域中特别值得关注的前沿基础性课题，也是重大工程灾害研究的迫切需求。其瓶颈问题是缺乏能模拟工程实际环境条件的大型室内试验设备，同时，缺乏对试验全过程的精确跟踪与多尺度量测技术。为此，本项目拟针对重大工程灾害机理与控制问题，研制一套软岩水-力耦合的流变损伤多尺度力学试验系统，重点包括：（1）研制模拟工程软岩赋存水环境与压力环境的全通透高压动/静水压力室与多元同步三轴加载系统；（2）开发软岩在高围压水溶液等条件下变形破坏全过程多尺度量测、精确跟踪的光纤传感实时量测系统，研制内外流变损伤多尺度三维成像系统；（3）开发多元异构量测数据同步快速处置系统。通过集成与智能优化设计，研制样机，初步应用。从而实现软岩流变试验原理与手段的创新，填补软岩大型流变损伤试验设备的空白，从根本上提升软岩力学试验水平，为重大工程灾害控防提供全新研究手段和关键性技术装备支持。

中文关键词： 软岩；水-力耦合；流变损伤；多尺度；力学试验系统

英文摘要： It has long been a frontier and fundamental research issue worthy of particular attention to develop large-scale scientific instruments in the field of engineering geology, which is also urgently needed for the study of major engineering disasters. Whereas, the current bottleneck problem arises from the absence of large laboratory experiment apparatus capable of mimicking the true engineering environmental conditions, and meanwhile the lack of techniques for precisely monitoring the whole testing process and measuring it at a multi-scale level. Therefore, by focusing on the issue about the fundamental mechanism and control of major engineering disasters, this research project will be aimed at developing a multi-scale mechanical testing system for the study of hydro-mechanical coupling rheological damage of soft rock. The main research works include: (1) the development of the transparent chamber with high dynamic/static water pressure as well as the triaxial synchronous-loading system, which is able to simulate the soft rock in hydro-mechanical state in engineering practice; (2) the development of a real-time measurement system with the use of fiber optic sensing technology, which is capable of measuring at a multi-scale level and meanwhile accurately tracing the whole deformation failure process of soft rock in

英文关键词： soft rock；hydro-mechanical coupling；rheological damage；multi-scale；mechanical experiment system