钢筋混凝土岔管在万家寨引黄工程中的应用

Application of reinforced concrete manifold in the Yellow River Diversion Project

总干线一、二级泵站高压出水钢筋混凝土岔管 ,应用限裂设计原理 ,采用高压固结灌浆加强围岩以及相应的防渗措施减少内水外渗的方法 ,替代钢岔管 ,取得施工简便、节省投资、缩短工期的较好效果。

The theory of limit crack width was adoped in the design of high pressure reinforcd concrete manifold of GMPS1&2,high pressure consolidation grouting was applied to strengthen the surrounding rock and anti-seepage measurement was used to decrease the leakage.Using concrete lining in the manifold instead of steel lining achieved preferable results such as simpling construction,saving cost and shortening the time limit of the project.