The upper continental formations are high dip angle structures in Heba 1 Well.
河坝1井上部陆相地层属于高陡构造，地层倾角大，极易发生井斜。
2
Finally, the shear strength reduction technique is used to analyze the seismic stability of Nuo Zhadu core wall type rockfill Dam and Chang Heba core wall type rockfill Dam in FEM.