高压钢筋混凝土平底岔管的边界元分析

Boundary Element Analysis of High Pressure Reinforced Concrete Bifurcations with Flat Bottom

广州抽水蓄能电站（下称广蓄电站）二期工程高压钢筋混凝土岔管采用平底岔管的型式，以利放空排水。平底岔管的内体型比已建成的广蓄电站一期工程的非平底、对称于洞轴线的卜型岔管更加复杂。根据广蓄电站一期工程高压钢筋混凝土岔管设计的成功经验，用边界元法对广蓄电站二期工程高压平底岔管进行了详细的结构分析，其成果是广蓄电站二期工程高压钢筋混凝土平底岔管结构设计的依据。

To facilitate emptying the water, high pressure reinforced concrete bifurcations with flat bottom are used in the Stage Ⅱ project of Guangzhou Pumped Storage Station. The internal shape of bifurcation with flat bottom is more complicated than that of Y-type with non-flat bottom, symmetric to the axis of tunnel, used in the completed Stage Ⅰ project of the Plant. Based on the successful experience in the design of high pressure reinforced concrete bifurcation for the Stage Ⅰ project, structural analysis has been carried out for the high pressure bifurcation withflat bottom of the Stage Ⅱ project, results of which have been used as the basis of its structural design.