地下工程平衡稳定理论

Theory of Equilibrium and Stability in Underground Engineering

地下工程建设的核心,就是围岩与支护共同作用在任何状态或过程都要达到稳定平衡,确保地下工程"基本维持围岩原始状态"。地下工程平衡稳定理论体系是用于实现这一目标的关键。平衡稳定理论,是理论体系的核心;减小对围岩原始结构扰动的地下工程开挖能量最小原理、对具有稳定性缺陷围岩及时支护的强预支护理论、减小连拱隧道与小净距隧道开挖相互影响的隧道受力独立性、确保环境稳定和实现协调平衡的地下工程建设环境稳定与协调平衡理论,是四项关键技术,支撑着整个理论体系。

The essence of underground construction is to preserve equilibrium and stability of surrounding rock and supporting during any process of underground construction and to maintain the original state of surrounding rock.Theory system of equilibrium and stability is the key to realize this purpose.First of all,theory of equilibrium and stability is the core of the theory system.Furthermore,the excavation minimal energy principle which will reduce the disturbance to the original structure of surrounding rock,the strong pre-supporting theory which emphasis the prompt supporting to defective surrounding rock,the force-bearing independence theory which will reduce mutual influences between twin tunnels or neighborhood tunnels and the environmental stability and compatible equilibrium theory which will ensure the stability of environment and realize the compatible stability of underground construction are four key technology to support the entire theory system.