Research on the Deformation Mechanism and Test Technology of Deep Soft Rock Roadway
Support of deep roadway has the most effect on the coal mine production, moreover, the deep soft roadway control is still the new field for probing into, there are many problems for using the theory of thinner overburden roadway to control deep roadway, especially for the soft and great flow distortion deep roadway. In order to make the support and parameter optimum and efficiency, in this paper, on the base of research distortion characteristic of soft rock entries, advancing suitable several holes method in testing distortion characteristic of shallow or deep surrounding rock mass. Non-linear deformation and break mechanism was analyzed with damage mechanics, unload mechanics, structure mechanics in vary point of view, and the main purpose is to study the formation, deformation and breach characteristic in shallow fragment zone and deep plastic zone. According to the deformation and damage characteristic of roadway in vary phase, the paper thought that the first support system aim is to prevent the forming of shallow fragmentation zone and the second is to stop continuous deformation of deep plastic zone in due course. This papers idea was fully validated in west entry supporting system and obtained preferable result in SUNCun Mine.
deep soft rock several holes testing method shallow fragment zone deep plastic zone
Zhang Jun Yang Renshu
Institute of Mechanics and Architecture Engineering, China University of Mining and Technology Beiji Institute of Mechanics and Architecture Engineering, China University of Mining and Technology Beiji
国际会议
The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)
辽宁阜新
英文
821-825
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）