Determination of snow load on the ground and the values of the high-altitude coefficient for highlands of the Transbaikal region

Abstract

The results of a research of snow load on the ground for highlands of the Transbaikal region are presented in the article. A statistical analysis of maximum annual values of snow load on the ground received by routing snow survey for the foothills of the Udokan ridge on different high levels is fulfilled. The long-term maximum annual data for meteorological stations and posts of the Transbaikal Hydrometeorological Department and the Amur region of the Far Eastern Hydrometeorological Department, located close to the Udokan ridge, are also analysed. By requirements of SP 20.13330.2011 «SNiP 2.01.07-85* Loads and actions» and SP 20.13330.2016 «SNiP 2.01.07-85* Loads and actions», a design value of snow load on the ground is determined with 25-year mean return period and with 50-year mean return period. A relation between normative (or design) values of snow load on the ground and a height of terrain above sea level is determined by a comparative analysis of the above information. Numerical values of a high-altitude coefficient are ascertained on the principles of SP 20.13330.2016.