Abstract:

Based on analyzing of security to staged height by handling,by penetrate into study,we put forward the technical of security to definite height by handling,decided the rational equipment,analyzed and contrast the economical guideline.We draw the conclusion that technical of security to definite height have a series of advantage,such as small the work labor intensity,high automatic degree,high productivity,lower the loss rate and poverty rate ects.It have certainly social mileage.Thereby,the technical of security to definite height by handling is worthy consultation and improvement.

Key words: security to stage height by handling, security to definite height by handling, horizontal sub-level mining, rational equipment.