Search International and National Patent Collections
|1. (WO2018133493) UNBALANCED SUPPORT DESIGN METHOD FOR GOB-SIDE ENTRY DRIVING UNDER DEEP UNSTABLE COVER ROCK|
|Applicants:||SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
|Title:||UNBALANCED SUPPORT DESIGN METHOD FOR GOB-SIDE ENTRY DRIVING UNDER DEEP UNSTABLE COVER ROCK|
An unbalanced support design method for gob-side entry driving under deep unstable cover rock, comprising the following steps: step 1, analyzing exploration conditions; step 2, selecting a roadway roof support structure and roadway two-sided unbalanced support structures; step 3, theoretically calculating primarily selected support parameters; step 4, performing numerical simulation; step 5, selecting initial support parameters; step 6, constructing a test section roadway; step 7, arranging a monitoring station and drawing a monitoring curve; and step 8, modifying the initial support parameters to form support parameters that comply with gob-side entry driving under the deep unstable cover rock. Said method has the advantageous effects of: gob-side entry driving under the deep unstable cover rock being able to be achieved safely and efficiently, and deformation of rock surrounding the roadway is small.