提高岩体中地下工程承受动载能力的技术途径  

ON BASIC WAY TO DRAMATICALLY INCREASE THE BEARING CAPACITY OF UNDERGROUND ENGINEERING IN ROCK MASS

作　　者：吴祥云[1] 赵玉祥[1] 任辉启[1] 李欢秋[1] 方秦[2] 赵晓兵[2] 

机构地区：[1]洛阳水利工程技术研究所,洛阳471023 [2]解放军理工大学,南京210007

出　　处：《岩石力学与工程学报》2003年第2期261-265,共5页Chinese Journal of Rock Mechanics and Engineering

摘　　要：通过定性的力学分析、原理性的模型试验、工程动载试验以及数值计算分析4方面的阐述,说明在地层介质中应力的传递与介质的相对刚度密切相关;提出“应力传递概念”的新思想;在防护工程、地下工程建设中,若能有效地运用应力传递概念的思想,就可以大幅度提高工程的承载能力。By qualitative mechanics analysis,model tests,dynamic loading tests,and numerical calculation and analysis,it is showed that the stress transmission in stratum is closely related to the relative stiffness of the medium,and a new concept棗the concept of stress transmission is proposed. If the new concept is effectively applied to the construction of protective and underground stuctures,the bearing capacity of the structures could be dramatically increased.

关 键 词：岩体 地下工程 应力传递 相对刚度 复合结构 软回填层 

分 类 号：TU452[建筑科学—岩土工程]