万家寨引黄南干一级泵站压力平洞混凝土裂缝成因分析

万家寨引黄工程南干一、二级泵站出水压力平洞的裂缝问题曾一度引起引黄上下的关注，笔者通过对南干一级泵站施工资料和现场实测的裂缝数量、监测仪器读数的研究，初步分析了压力洞混凝土产生裂缝的原因，为今后压力洞混凝土村砌的设计和施工提供一些参考。

Cause on Concrete Crack in Pressure Adit of The First - stage Pumping Station, The South Main Line of YRDP

The problem of concrete crack in pressure adit of the first-stage and second-stage pumping station,the South Main Line of YRDP ever brought a wide attention from the relative divisions of YRDP.Through the research on some data,in-place observation of adit cracks and measure instrument reading,the author analyzes the formation cause of concrete cracks in the pressure adit preliminaryly,and provides some reference idea for design and construction of presure tunnel's concrete lining in future.