The surface deformation monitoring of the side - wall by combination of the forward intersection method with the analytical trigonometric elevation measurement demonstrates that the plane deformation and vertical deformation of the side - wall are small , and the quality of dam filling and side - wall construction is satisfactory 用能夠滿足精度要求的前方交會法與解析三角高程測量法結(jié)合的方法對邊墻表面變形進行監(jiān)測,結(jié)果表明,邊墻平面位移和垂直位移均較小,大壩填筑和邊墻施工質(zhì)量可靠。