Study on the Relationship between Hydraulic Support on the Working Face with Large Mining Height and Surrounding Rock

摘要：

Using unified model and theory of rock pressure, the problems, such as caving of stope roof with large mining height and destruction of support, strata movement and surface subsidence, are unified analyzed and researched. The results show that: pressure shell is dynamic shell, which moves forward with the propulsion of working face; with the increase of mining height on the face, the height of fracture zone in coal seam increases, not continuously, but jumpily; with the increase of mining height, support load rises, but the degree of this rise decreases gradually, increased degree of immediate roof weight should be greater than that of given deformation pressure. The results provide necessary basis for reliability of hydraulic support on the working face with large mining height and safety work in the underground.

关键词： Hydraulic support Surrounding rock Mining height Pressure shell Load

作者: Ying MA Sheng ZHONG

作者单位: Mining Branch of Coal Research Institute, China Beijing Tiandi-Marco Electro-Hydraulic Control System Company Ltd, China

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)

会议地点: 广州

会议语种:英文

页码: 1671-1674

在线出版日期: 2011-11-18（万方平台首次上网日期，不代表论文的发表时间）