Taking Mogao grotto as example, the seismic resistance characteristics of retain wall type grotto is discussed. Methods for the seismic stability evaluation of surrounding rock and auxiliary structures of grottoes are studied.
The paper analyzes the main cause for the quality problem of the auxiliary structures of urban road project. It also states the basic principle and method how to solve these problems in the construction.
Focusing on two sections of Mogao Grottoes in Dunhuang of Gansu Province,the dynamic response and variation regularity of rock mass and its adjuncts are revealed through numerical simulation of displacement and stress field under dynamic loads with different PGA,spectra and durations.
Safety assessment on tailing pond should be based on safety conditions of dam and its affiliated construction, safety grade, safety degree and the comprehensive assessment on safety production of tailing pond.
Experiences in design and construction of piping layout, pipe material, piping coupling, valve, gate, pipe duct, pipe groundwork, metallic pipe anticorrosion, accessory building and computer application in the engineering of water supply and sewerage buried piping in petrochemical industry are introduced.