Those problems include:(1) how to determine the value for the temperature differences between inside and outside surfaces of the wall,and the wall pressure from the coal storage;(2) the distribution of the resultant in the wall resulting from the temperature and the wall pressure;(3) the resultant in the piles caused by the coal stacking.

How to improve the utilization of space,reduce area and the amount of soil,saving the investment of equipment,reasonable and necessary optimization for coal storage system in engineering design,without reducing the reliability of coal handling system and the security of coal supply,is a practical problem to the design of coal storage field in modern power plant of domestic.