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Abstract

Under the environment that the safety problem of coal mining is becoming more and more serious, research on coal seam has become one of the hot topics. Among them, the water inrush from coal seam floor is one of the main threats to coal mine safety. Based on this, the mechanism of water inrush from coal seam floor was revealed by the coupling of seepage and stress and the variation regularity of permeability of rock during the whole stress-strain process was analyzed, and the effects of confining pressure and osmotic pressure on permeability were studied and the dynamic evolution models of rock permeability and the equation of permeability and volume strain were established. The permeability and failure process of rock were analyzed and rock engineering system (ORES) method was proposed. The seepage stress coupling mechanism of coal seam floor was analyzed and the governing equations of seepage stress coupling of coal seam floor were constructed. Hebei Xingtai North wells in Dongpang Coal Mine 9208 working face water inrush examples were analyzed. This study can provide technical support for the analysis of coal seam floor water disaster and the treatment of water inrush.

Keywords

Coal seam floor water inrush mechanism seepage stress coupling seepage

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References

Zhao

Q.B.

, Zhao

X.N.

and Wu

, Water burst mechanism of “divided period and section burst” at deep coal seam floor in North China type coalfield mining area, Meitan Xuebao/Journal of the China Coal Society40(7) (2015), 1601–1607.

Pang

, Wang

and Ding

, Mechanical model of water inrush from coal seam floor based on triaxial seepage experiments, International Journal of Coal Science & Technology1(4) (2014), 428–433.

J.L.

, Zhang

H.Y.

and Wang

X.Y.

, Application and suggestion on vulnerable index method of coal seam floor water burst evaluation, Journal of China Coal Society39(4) (2014), 725–730(6).

, Zhang

and Zhao

W.D.

, A new practical methodology of coal seam floor water burst evaluation the comparison study among ANN the weight of evidence and the logistic-regression vulnerable index method based on GIS, Meitan Xuebao/Journal of the China Coal Society38(1) (2013), 21–26(6).

and Wang.

, Numerical simulation of mining-induced fracture evolution and water flow in coal seam floor above a confined aquifer, Computers and Geotechnics67 (2015), 157–171.

Duan.

S.Y.

, Probe into the calculation formula of coefficient of water bursting from coal seam floor, Hydrogeology & Engineering Geology30(1) (2003), 96–99.

Xie

X.J.

, Ji

and Xue

D.L.

, Study of the water bursting risk assessment in 19∼# coal seam floor of panxi coal mine, Shandong Coal Science & Technology (2014).

Wang

, Jiang

and Xing

, A study on coal seam floor pressure bearing capability during mining under safe water pressure of aquifer, Coal Geology of China33(33) (2007), 940–945.

and Wang

, Numerical simulation of mining-induced fracture evolution and water flow in coal seam floor above a confined aquifer, Computers & Geotechnics67 (2015), 157–171.

10.

Yuhua

and Longjun.

, Study on forecast of water bursting volume from coal seam floor based on fisher discriminant, Mining Research and Development3 (2009), 27.

11.

Cheng

, Bai

and Ma

, Control mechanism of rock burst in the floor of roadway driven along next goaf in thick coal seam with large obliquity angle in deep well, Shock & Vibration2015 (2015), 1–10.

12.

H.B.

, Yang

W.M.

, Wu

W.J.

, et al. The model of fracture mechanics of water bursting from coal seam floor, J Beijing Vocat Tech Inst Ind4(3) (2005), 48–50.

13.

Pang

, Wang

and Ding.

, Mechanical model of water inrush from coal seam floor based on triaxial seepage experiments, International Journal of Coal Science & Technology1(4) (2014), 428–433.

14.

Jun

and Xiangyu.

, Water-inrush mechanism during construction and determination of safety distance from the water source in a Karst Tunnel, The Electronic Journal of Geotechnical Engineering20 (2015), 2345–2354.

15.

Zheng

, Duan

and Xiaobo, Research on deep coal seam mining floor starta water bursting influenced factors based on analytic hierachy process, Applied Mechanics & Materials608-609 (2014), 737–741.

16.

X.M.

, Zhou

Q.M.

and Xiang

X.R.

, Application of vulnerability index method in floor water inrush evaluation, Applied Mechanics & Materials614 (2014), 321–326.

17.

Yudong

, Xin

and Jinjin.

, Study of water bursting from 1# coal seam floor in the third coal mine of Xinji, Shandong Coal Science and Technology1 (2011), 99.

18.

Fan

, Li

, Wu

, Zeng

and Guo

, Study on Prevention of Taiyuan Limestone Water-inrush in No.1 Coal Seam Floor of Xinji No.2 Coal Mine [J]. Zhongzhou Coal, 2012.

19.

Wenliang.

, Analysis on seepage characteristic and water bursting mechanism of floor confined water in deep mining, Zhongzhou Coal4 (2011), 26–28.

20.

, Wang

and Wu

, Investigations of groundwater bursting into coal mine seam floors from fault zones, International Journal of Rock Mechanics & Mining Sciences41(4) (2004), 557–571.

21.

Shi

, Zheng

, Zhou

, Jin

, He

, Liu

and Qiang-Sheng

, Graph Processing on GPUs: A Survey, ACM Computing Surveys, 2017.

22.

Zheng

, Jeong

H.Y.

, Huang

, et al., KDE based outlier detection on distributed data streams in multimedia network[J], 76(17) (2017), 18027–18045. DOI: https://doi.org/10.1007/s11042-016-3681-y

Mechanism of water inrush from coal seam floor based on coupling mechanism of seepage and stress

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