Mechanisms of Roadside Support and Application of Pier Column in Gob-Side Roadway Retaining

被引：2
|
作者：
Ma, Xuewen [1 ]
Tan, Wenhui [1 ]
Wang, Pengfei [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 10083, Peoples R China
来源：
2018 INTERNATIONAL CONFERENCE ON AIR POLLUTION AND ENVIRONMENTAL ENGINEERING (APEE 2018) | 2018年 / 208卷
基金：
国家重点研发计划;
关键词：
gob-side roadway retaining; roadside support; pier column; FLAC3D;
D O I：
10.1088/1755-1315/208/1/012033
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The stability control of roadside filling body is the key to keep the gob-side roadway retaining. According to the mechanical model of gob-side roadway retaining overlying strata, the paper analyzed the movement laws of main roof, especially the deformation process of key block B in the two stages. Based on this, we proposed and used the pier column supporting body as roadside support in the gob-side roadway retaining. We built a numerical model by using FLAC3D to analysis the supporting effect of pier column. All the above research results are applied in the tailway of W1305 working panel in Gaohe coal mine and have certain guidance to the practice of gob-side roadway retaining in other coal mine.
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页数：7
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