The Reliability Analysis Of Shortscrete And Rock-bolting System And Surrounding Rock

With the development of the reliability theory,The limited state design method based on reliability theory are replacing the safety factor design method in the design of structures.The method of Shortscrete and Rock-bolting System design have great developed along with it was commen applied in geotechnical engineering.But geotechnical engineering is natural material,It have multiform physics and mechanics character,The design of geotechnical engineering was influenced by it's variability. So the method of limited state design is superior to definitely analysis method in design of geotechnical engineering.In this paper,the methods of reliability analysis are introduced. The special advantages and possibility of the improved Monte-carlo method in the underground engineering are discussed. Furthermore,according to the improved Monte-carlo method,the calculating methods of the reliability for surrounding rock,shotscrete and rock-bolting system are found. The calculating methods can be used in the design and check of support on the personal computer.