地下钢筋混凝土岔管应力分析

Stress analysis of underground reinforced concrete bifurcation

结合国内某抽水蓄能电站的钢筋混凝土岔管工程实例,提出了围岩、混凝土等材料的数值模拟方法,通过三维有限元线性和非线性计算,分析研究了地下钢筋混凝土岔管在施工、内压、外压等工况下,围岩、衬砌、钢筋的应力与变形,探讨了岔管受力和破坏的一些基本特性.

In accordance with the practice of a certain pumped storage station's reinforced concrete bifurcation, the method of numerical simulation of materials such as surrounding rock, lining and so on is presented. And by using 3D linear and nonlinear FEM, stress analysis of rebar, lining and surrounding rock has made under different working conditions such as construction, internal water pressure and external water pressure. Some basic characteristics on loading and failure of the underground reinforced concrete bifurcation are discussed.