In the construction of Xiamen Xiang\'an tunnel,peripheral curtain grouting,advance long pipe-roofing and tri-bench excavation method have been taken based on the geological condition of deep F3 weathered trough passed by Xiang\'an tunnel.

Effects of pH Value and Temperature on Adsorption of Heavy Metal lons by Anti-Seepage Curtain for Landfills;

Through curtain grouting, an effective and stable "flood control dam" is built which guarantee safty production of Zhangmatun iron deposit for 30 years.

The general rule of fissure development in low dip soft-hard interbedding rock mass is described,and then based on this the dam foundation seepage is simulated with dual-medium model,and the influence of unstratabound fissure and waterproof curtain is discussed.

It introduces application of deep mixing cement-soil pile in maintenance of foundation pit, combined with storing pool of coking equipment it discusses no-support and earth-retaining & water-retaining drapery and its effect, which to extend the method.

From the water quality findings at the Danjiangkou, Meishan, Ansha, Xinganjiang, etc, it should be paid great attention to anticorrosion of the grout curtain in the .