Observation and Numerical Analysis of the Scope of Fractured Zones Around Gateroads Under Longwall Influence

被引：28

作者：

Bai, Qing-Sheng ^{[1
]}

Tu, Shi-Hao ^{[1
]}

Wang, Fang-Tian ^{[1
]}

Zhang, Xiao-Gang ^{[1
]}

Tu, Hong-Sheng ^{[1
]}

Yuan, Yong ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mines, Minist Educ China, Key Lab Deep Coal Resource, Xuzhou 221116, Jiangsu, Peoples R China

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2014年 / 47卷 / 05期

关键词：

Field observation; Numerical modeling; Scope of fractured zones (SFZ); Gateroad; Longwall gob simulation; BEHAVIOR; TUNNEL;

D O I：

10.1007/s00603-013-0457-9

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A study was conducted for observation and numerical analysis of the scope of fractured zones around gateroads under longwall influence. Numerical modeling was employed in characterizing the failure zones around the gateroads. Ventilation and access to the face were provided by two parallel pre-driven gateroads along each side of the panel. The rock part between gateroads B and C was the coal pillar, which was 20 m wide. The gateroads were driven along the floor of the seam with the width of 5.5 m and height of 3.9 m. The gateroads were reinforced by bolts and anchor cables in the roof, bolts in the solid abutment side, and fiberglass bolts in the working face side. Bolts and cables were enhanced with steel wire sheets and steel strips due to the brittle failure occurring on the surface of gateroads.

引用

页码：1939 / 1950

页数：12

共 18 条

[1]

[Anonymous], 2006, FLAC3D FAST LAGR AN

[2] Influence of stress path on tunnel excavation response - Numerical tool selection and modeling strategy [J].

Cai, M. .

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2008, 23 (06) :618-628

[3] Mechanical behavior of a twin-tunnel in multi-layered formations [J].

Chu, Bin-Lin ;

Hsu, Sung-Chi ;

Chang, Yi-Long ;

Lin, Yeong-Shyang .

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2007, 22 (03) :351-362

[4] Numerical modelling of the effects of weak immediate roof lithology on coal mine roadway stability [J].

Coggan, John ;

Gao, Fuqiang ;

Stead, Doug ;

Elmo, Davide .

INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2012, 90 :100-109

[5]

Dong FT, 1994, J. China Coal Soc, P21

[6]

Esterhuizen GS, 2006, P 41 US S ROCK MECH

[7] Deformation analysis of a soft-hard rock contact zone surrounding a tunnel [J].

Feng, Wenkai ;

Huang, Runqiu ;

Li, Tianbin .

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2012, 32 :190-197

[8]

[郜进海 Gao Jinhai], 2004, [岩石力学与工程学报, Chinese Journal of Rock Mechanics and Engineering], V23, P3292

[9]

Hammah R.E, 2009, P 43 US ROCK MECH S

[10] Practical estimates of rock mass strength [J].

Hoek, E ;

Brown, ET .

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 1997, 34 (08) :1165-1186

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