Skip to main content
SpringerLink
Log in

Study on the Development Laws of Bed-Separation Under the Hard-Thick Magmatic Rock and its Fracture Disaster-Causing Mechanism

  • Original paper
  • Published:
Geotechnical and Geological Engineering Aims and scope Submit manuscript

Abstract

Based on the analysis of dynamic phenomena under the condition of high-located hard-thick (HLHT) stratum of one coal mine, along with the similar material simulation and theoretical analysis, the characteristics of bed separation development and cracks distribution under the HLHT stratum are studied. This paper proposes a discriminating method for overlying strata Three Zones considering the influence of HLHT stratum. The development laws of cracks and disaster-causing mechanism of hard-thick magmatic rock in different strata are respectively analyzed. The studies show that in line with the working face advancing direction, the height of bed separation under the magmatic rock increases in the trend of “Increase–Stability–Decrease”, and the width of bed separation increases linearly. The width of bed separation reaches the maximum before the first breaking of magmatic rock, the bed separation completely closes after the breaking. There are no obvious bed separations during the period migration of magmatic rock. Along the direction of the height of roof, the development of bed separation is characterized by bottom-up jump based on the key strata. The analyzed results of “Three zone” height obtained by the discriminate method of overlying strata Three Zones which is based on the key strata theory and the S–R instability theory are in line with the actual facts. When the hard-thick magmatic rock is in the fractured zone, large amounts of gas and water are easy to accumulate in the bed separation space and “O” ring space around the gob. The first breaking of magmatic rock may induce bed separation gas outburst and water inrush. When the hard-thick magmatic rock is in the sagging zone, the long-term stability of magmatic rock will not cause serious disasters. But with the adjacent working face mining, bed separation gas and water often become a safety hazard.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

Similar content being viewed by others

References

  • Cheng GQ, Song YJ (2011) The evolution rules of overlying strata porosity influenced by mining activation. Adv Mater Res 282–283:21–25

    Google Scholar 

  • Frank DiGeorge, J.B. Herbich, W.A. Dunlap (1979) Laboratory determination of bulking factors. Texas A&M University, Department of Civil Engineering, Report, vol 219, pp 311–366

  • Guo WJ, Kong LH, Chen SJ et al (2009) Correlation between rock burst and movement of strata and surface. Rock Soil Mech 30(2):447–451 (in Chinese)

    Google Scholar 

  • Han L, Meng XR (2013) Analysis floor failure characteristics of 7122 working face in the qinan coal mine based on the plasticity theory. Appl Mech Mater 275–277:999–1002

    Article  Google Scholar 

  • Huang QX (2007) Experimental research of overburden movement and subsurface water seeping in shallow seam mining. J Univ Sci Technol Beijing Miner Metall Mater (Eng Ed) 14(6):483–489

    Google Scholar 

  • Huang YL, Zhang JX, An BF, Zhang Q (2011) Overlying strata movement law in fully mechanized coal mining and backfilling longwall face by similar physical simulation. J Min Sci 47(5):618–627

    Article  Google Scholar 

  • Li BF, Li XJ, Ren YK (2014) Experimental and theoretical study on rock burst inducement by movement of super-thick conglomerate strata overlying working face. J China Coal Soc 39(Suup.1):31–37 (in Chinese)

    Google Scholar 

  • Li Y, Wang HQ, Wu W et al (2015) Impact factors of overburden movement in longwall mining over thin overlying strata. Electr J Geotech Eng 20(12):5133–5142

    Google Scholar 

  • Liu CW, Lu SL (2000) Research on mechanism of mudstone degradation and softening in water. Rock Soil Mech 21(1):28–31 (in Chinese)

    Google Scholar 

  • Lu XW, Dou LM, Wang GR et al (2010) Analysis on mine seismic distribution features under ultra thick igneous rock. Coal Eng 7:54–57 (in Chinese)

    Google Scholar 

  • Ma DJ, Li GS, Zhang XN, Huang ZW (2011) Experimental study on rock breaking by a combined round straight jet with a swirling jet nozzle. At Sprays 21(8):645–653

    Article  Google Scholar 

  • Ni XH, Zheng YR, Xie YL et al (1996) Research on observing the height of overlying strata caving and fracture zone in the fully mechanized top coal caving face. J Coal Min Technol S:53–57 (in Chinese)

    Google Scholar 

  • Pan HY, Li SG, Zhao PX, Zhang TJ (2012) Establishment and analysis of the composite key stratum model layer on the Winkler Foundation. In: TMS annual meeting, TMS 2012–141st annual meeting and exhibition, supplemental proceedings, vol 2, pp 147–150

  • Peng JB, Chen LW, Huang QB, Men YM, Fan W, Yan JK (2013) Physical simulation of surface fissures triggered by undersurface fault activity. Eng Geol 155(2):19–30

    Article  Google Scholar 

  • Qian MG, Miao XX, Xu JL, Mao XB (2003) Key strata theory of strata control. China University of Mining and Technology pres, Beijing (in Chinese)

    Google Scholar 

  • Shen BT, Brett Poulsen (2014) Investigation of overburden behaviour for grout injection to control mine subsidence. Int J Min Sci Technol 24(3):317–323

    Article  Google Scholar 

  • Shi LQ, Xin HQ, Zhai PH et al (2012) Calculating the height of water flowing fracture zone in deep mining. J China Univ Min Technol 41(1):37–41 (in Chinese)

    Google Scholar 

  • Su ZJ (2001) Research of deformation mechanism of mining overburden separated strata. Ph.D. Dissertation, Liaoning Technical University (in Chinese)

  • Wang L, Zhang XF (2009) Correlation of surface subsidence characteristics and mining disasters under super-thick overlying strata. J China Coal Soc 34(8):1048–1051 (in Chinese)

    Google Scholar 

  • Wang ZQ, Li PF, Wang L et al (2013) Method of division and engineering use of “three band” in the stope again. J China Coal Soc 38((Suup.2)):287–293 (in Chinese)

    Google Scholar 

  • Wang L, Cai CC, Xu C et al (2014) Thermal metamorphism effect of magma intrusion on underlying coal seams in the Haizi mine field. J China Univ Min Technol 43(4):569–576 (in Chinese)

    Google Scholar 

  • Wang C, Zhang N, Han Y, Xiong Z (2015) Experiment research on overburden mining-induced fracture evolution and its fractal characteristics in ascending mining. Arab J Geosci 8(1):13–21

    Article  Google Scholar 

  • Wang L, Cheng YP, Jiang JY et al (2010) The coupling laws between fissure field and gas flow field under an extremely thick igneous rock. J China Coal Soc 35(8):1287–1291 (In Chinese)

    Google Scholar 

  • Wang CY, Zou XJ, Han ZQ, Wang YT et al (2016) An automatic recognition and parameter extraction method for structural planes in borehole image. J Appl Geophys 135:135–143

    Article  Google Scholar 

  • Xu JL, Wang XZ, Liu WT (2009) Effects of primary key stratum location on height of water flowing fracture zone. Chin J Rock Mech Eng 28(2):380–385 (in Chinese)

    Google Scholar 

  • Xuan DY, Xu JL, Feng JC et al (2011) Disaster and evolvement law of mining-induced stress under extremely thick igneous rock. J China Coal Soc 36(8):1252–1257(in Chinese)

    Google Scholar 

  • Xuan DY, Xu JL, Zhu WB, et al (2012) Field test on dynamic disaster control by grouting below extremely thick igneous rock. J China Coal Soc 37(12):1967–1974 (in Chinese)

    Google Scholar 

  • Zan YL, Wu HQ (2010) Probe into the applicable conditions of the experimental formulate listed in the appendix of exploration specification of hydrogeology and engineering geology in mining areas. J Sci Tech Inf Dev Econ 20(34):220–221 (in Chinese)

    Google Scholar 

  • Zhang P, Huang QX (2012) Coupling effect between single key strata and the overburden thick sandy soil layer. Adv Mater Res 374–377:1295–1298

    Google Scholar 

  • Zhou DW, Wu K, Cheng GL, Li L (2015) Mechanism of mining subsidence in coal mining area with thick alluvium soil in china. Arab J Geosci 8(4):1855–1867

    Article  Google Scholar 

  • Zhu WB, Wang XZ, Kong X et al (2009) Study of mechanism of stope water inrush caused by water accumulation in overburden separation areas. Chin J Rock Mech Eng 28(2):306–311 (in Chinese)

    Google Scholar 

Download references

Acknowledgements

This study was supported by the National Natural Science Foundation of China (51374139), the natural science foundation of Shandong Province (ZR2013EEM018) and the Graduate Innovation Fund of Shandong University of Science and Technology (No. YC150307).

Author information

Authors and Affiliations

  1. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, 266590, China

    Jin-quan Jiang & Bin Xu

  2. College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, 266590, China

    Jin-quan Jiang & Bin Xu

Authors
  1. Jin-quan Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Bin Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Bin Xu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Jiang, Jq., Xu, B. Study on the Development Laws of Bed-Separation Under the Hard-Thick Magmatic Rock and its Fracture Disaster-Causing Mechanism. Geotech Geol Eng 36, 1525–1543 (2018). https://doi.org/10.1007/s10706-017-0406-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10706-017-0406-6

Keywords

Search

Navigation