高压地下钢筋混凝土岔管的设计准则探讨

Discussion on design criterion of underground reinforced concrete bifurcated pipe with high pressure water

从地下钢筋混凝土岔管的位置选择入手，对高压岔管在内外水压下的工作状态和限裂设计问题进行了讨论分析，指出高压地下钢筋混凝土岔管应按透水衬砌理论进行设计，应以围岩在高内水压力作用下不会发生大的水力劈裂作为钢筋混凝土岔管可行性的依据。

The working behaviour of the underground R.C. bifurcated pipe under the internal and external water pressure and the design of the crack limitation calculation have been discussed. It is proposed that the underground R.C. bifurcated pipe with high pressure water be designed by the permeable lining theory, and the feasibility of a R.C. bifurcated pipe should be evaluated according to the condition of surrounding rock to avoid hydraulic fracture.