Floor heave in the west wing track haulage roadway of the Tingnan Coal Mine:Mechanism and control

Wang Jiong; Guo Zhibiao; Yan Yubiao; Pang Jiewen; Zhao Shujiang

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Floor heave in the west wing track haulage roadway of the Tingnan Coal Mine:Mechanism and control

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Floor heave of a roadway is a dynamic phenomenon that often happens in the roadways of coal mines.It seriously affects safe production in the coal mine.Floor heave has long been one of the most difficult problems to be resolved during coal mining.An analysis of floor heave in the soft rock surrounding the roadway,and the factors influencing it,allowed the deformation mechanism in the west wing double track haulage roadway of the Tingnan Coal Mine to be deduced.Three types of floor heave are observed there:intumescent floor heave,extrusion and mobility floor heave,and compound floor heave.Control measures are proposed that have been adopted during a recent repair engineering project.Control of the floor heave in the west wing-track haulage roadway was demonstrated.The reliability and rationality of a combined support technology including floor anchors,an inverted arch,and anchoring of both sides was verified by mine pressure data and the field observations.Waterproofing measures were also undertaken to assist in the control of floor heave.

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《矿业科学技术（英文版）》 |2012年第3期|295-299|共5页
作者
Wang Jiong; Guo Zhibiao; Yan Yubiao; Pang Jiewen; Zhao Shujiang;
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作者单位

State Key Laboratory of Geomechanics and Deep Underground Engineering, Beijing 100083, China;

School of Mechanics (ε) Civil Engineering, China University of Mining (ε) Technology, Beijing 100083, China;

State Key Laboratory of Geomechanics and Deep Underground Engineering, Beijing 100083, China;

School of Mechanics (ε) Civil Engineering, China University of Mining (ε) Technology, Beijing 100083, China;

State Key Laboratory of Geomechanics and Deep Underground Engineering, Beijing 100083, China;

School of Mechanics (ε) Civil Engineering, China University of Mining (ε) Technology, Beijing 100083, China;

State Key Laboratory of Geomechanics and Deep Underground Engineering, Beijing 100083, China;

School of Mechanics (ε) Civil Engineering, China University of Mining (ε) Technology, Beijing 100083, China;

State Key Laboratory of Geomechanics and Deep Underground Engineering, Beijing 100083, China;

School of Mechanics (ε) Civil Engineering, China University of Mining (ε) Technology, Beijing 100083, China;

State Grid Energy Hefeng Coal Electricity Co. Ltd., Hefeng 834400, China;

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Floor heave in the west wing track haulage roadway of the Tingnan Coal Mine:Mechanism and control

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