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1. (WO2018133493) UNBALANCED SUPPORT DESIGN METHOD FOR GOB-SIDE ENTRY DRIVING UNDER DEEP UNSTABLE COVER ROCK

Pub. No.:    WO/2018/133493    International Application No.:    PCT/CN2017/108718
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Wed Nov 01 00:59:59 CET 2017
IPC: E21D 11/00
E21D 21/00
E21D 20/00
Applicants: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
山东科技大学
Inventors: FAN, Kegong
樊克恭
WANG, Tengfei
王腾飞
LONG, Junbo
龙军波
JIA, Wenming
贾文明
Title: UNBALANCED SUPPORT DESIGN METHOD FOR GOB-SIDE ENTRY DRIVING UNDER DEEP UNSTABLE COVER ROCK
Abstract:
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.