Research on Secondary Support Time of Soft Rock Roadway

被引：0

作者：

Wu, Duohua ^{[1
]}

Qiao, Weiguo ^{[1
]}

Song, Weijie ^{[1
]}

Vladimir, Pershin V. ^{[2
]}

机构：

[1] Shandong Univ Sci & Technol, Qingdao 266590, Peoples R China

[2] TF Gorbachev Kuzbass State Tech Univ, Kemerovo, Russia

来源：

PROCEEDINGS OF THE 8TH RUSSIAN-CHINESE SYMPOSIUM COAL IN THE 21ST CENTURY: MINING, PROCESSING, SAFETY | 2016年 / 92卷

关键词：

soft rock roadway; secondary support time; rheological model Introduction;

D O I：

暂无

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

In order to determine accurately secondary support time, the adjustment process of surrounding rock stress and strength in the course of supporting is analyzed based on the support principle of soft rock roadway. Based on the rheological model of soft rock roadway and the corresponding relationship between the mechanics behaviors of elastic zone, plastic zone and fractured zone and rock complete stress-strain process, the theoretical formula of secondary support time is proposed. Then the influential factors and rules of secondary support time are analyzed. To validate the study, the secondary support time theory is applied to engineering practice. Results show the roadway maintains a good stability according to the proposed secondary support time.

引用

页码：5 / 10

页数：6

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