Study on Proportioning Test of Coal Solid Waste Paste Filling Material

Abstract:

In order to excavate coal resourses which is under buildings, water bodies, railways and above confined water, a complete technology of new pumping paste comprehensive mechanization mining technique which is safety, high efficiency, high mining rate and environmental protection has been formed, the study on filling material is very important. In this thesis, the uniform experiment is used comprehensively on the proportioning test of mine solid waste such as coal gangue, fly ash etc. The results showed: (1) the collapsed slump of paste will increase obviously with the increase of the content of fly ash; (2) the paste stratified degree will decrease regularly with the increase of the content of fly ash; (3) the paste bleeding rate will reduce obviously with the increase of the content of fly ash; (4) the paste strength will increase gradually with the the increase of cementing material; (5) early strength agent can improve the early strength of filling test blocks to some extent, but the later strength growth is not obvious.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1086-1091
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1086
• Online since: May 2012
• Authors: Xin Guo Zhang, Ji Wen Bai, Heng Wang, Ning Jiang
• Keywords: Material Proportion, Paste Filling, Pressed Coal under Buildings, Railways and above Confined Water, Uniform Test, Water Bodies

References

[1] Cai Sijing: Mine filling mechanics [M].Beijing: Metallurgical Industry Press, (2009) .

[2] Zhou Aimin: Mine waste cementation stowing[M].Beijing: Metallurgical Industry Press, (2007).

[3] Li Baiying, Guo Weijia: Mining gamage and environment protection[M]. Beijing: Coal Industry Publication Press, (2004).

[4] Miu Xiexing, Qian Minggao: Research on green mining of coal resources in China current status and future prospects[J]. Journal of Mining & Safety Engineering, 2009, 26(1) , pp.1-14.

[5] Liu Tongyou,Cai Sijing: Research condition and application on paste backfilling technology at home and abroad[J]. China mining, 1998, 7(5) , pp.1-4.

[6] Zhou Huaqiang, Hou Chaojiong, Sun Xikui et.al: Solid waste paste filling for None-Village-Relocation Coal Mining[J]. Journal of China University of Mining & Technology, 2004, 33(2) , pp.154-158.

DOI: 10.1201/9780203022528-18

[7] Senyur M.G.: Fabric of coal-mine refuse as backfilling material and its relation to grain-size distribution parameters[J]. Journal of the SouthAfrican Institute of Mining and Metallurgy, 1998, 98 (1) , pp.39-48.

[8] Siriwardane.H.J, Kaman.S.S, Ziemkiewicz.P.F: Use of waste materials for control of acid mine drainage and subsidence[J]. Journal of Environmental Engineering, 2003, 129(10) , pp.910-915.

DOI: 10.1061/(asce)0733-9372(2003)129:10(910)

[9] He Rongjun, Zhou Huaqiang, Zheng Baocai: Research on coal paste roadside packing material[J]. Energy Technology and Management, (2006).

[10] Zheng Baocai, Zhou Huaqiang, He Rongjun: Experimental research on coal gangue paste filling material[J]. Journal of Mining & Safety Engineering, (2006).

[11] Zhao Caizhi, Zhou Huaqiang, Qu Qundi, Chang Qingliang: Experimental study on rheology performances of paste backfilling slurry[J]. Coal Science and Technology, (2006).

[12] Zhao Caizhi, Zhou Huaqiang, Bai Jianbiao, Chang Qingliang: Experimental research on fly ash total tailing paste filling[J]. Metal Mine, (2006).