Development of the long-distance pipeline transport for backfill mixes in terms of Oktyabrsky Mine

Tapsiev, A. P.; Anushenkov, A. N.; Uskov, V. A.; Artemenko, Yu. V.; Pliev, B. Z.

doi:10.1007/s10913-009-0034-5

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Paste slurry is characterised by high mass concentration with no segregation or water release and its rheological properties are different to that of solid-liquid phase flow and newtonian fluids, so the paste slurry is generally regarded as non-newtonian fluid [6,[11][12][13]. others [19][20][21] regard paste slurry as a homogeneous fluid and the slurry presents the plug flow in pipeline, and the paste flow behavior can be described by hershel-bulkey model in general. Paste has a certain initial shear deformation resistance capacity, i.e., yield stress.…”

Section: Experimental Principlementioning

confidence: 99%

“…Some researchers adopted inclined pipe and L-pipe and other test methods [17][18] to measure the slurry flow in unit time and calculated its rheological parameters, while the accuracy of conclusions obtained from the method is between what was obtained from the rheometer test and the pipe loop test. The delivery through the long-distance paste slurry pipeline has a higher requirement for paste pressure loss [19][20] to guarantee the reflection of actual situation of pressure loss. Therefore, the rule for impact of mass concentration, cement content, conveying pipe diameter and conveying volumetric flow rate on delivery pressure loss of paste slurry was obtained through round-pipe test in this paper to determine the conveying parameters of paste slurry for major ore body of a copper mine and implement the scheme design and engineering application of the conveying pipeline.…”

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confidence: 99%

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Archives of Mining Sciences

Sun,

Jiang,

Fan

et al. 2022

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Determination anD application of pressure loss in long Distance pipeline transportation of paste slurry BaseD on pipe loop experimentindustrial size pipe loop tests were conducted to determine the effect of paste mass concentration, cement content, conveying pipe diameter and conveying volumetric flow rate, on the pipeline pressure loss of paste slurry. The tests were conducted to determine the pressure losses in the backfill system at a Copper Mines major ore body. Results show that the pressure loss of paste slurry increases with the increase in mass concentration, and when the mass concentration exceeds 70%, the pressure loss will increase sharply and would be an exponential function of paste mass concentration; as the cement content increases, the pressure loss would decrease at first and then increase with the maximum pressure loss at 11% cement content; the pressure loss increases with the increase in conveying the volumetric flow rate accordingly, while the growth rate of pressure loss will increase after the volumetric flow rate exceeds 50 m 3 /h; the pressure loss of paste slurry decreases sharply with the increase in pipe diameter, i.e., the larger pipe diameter, the smaller pressure loss; lastly, the paste conveying parameters were determined as mass concentration of lower than 70% (pressure loss: 2.55 MPa/km), cement content of 5% to 11%, inside diameter of conveying pipe of 150 mm and the maximum allowable pipeline pressure of 6 MPa.

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Section: Experimental Principlementioning

confidence: 99%

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confidence: 99%

Archives of Mining Sciences

Sun,

Jiang,

Fan

et al. 2022

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“…Domestic and foreign scholars have done a lot of research and practice on it. Varieties of backfill mining methods such as solid backfill, pneumatic backfill, cemented paste backfill and high-water material backfill have been put forward (Tapsiev et al 2009; Belem and Benzaazoua 2008; Seryakov et al 2008; Donovan and Karfakis 2004; Rankine and Sivakugan 2007). One of the most extraordinary among them applied in China is the fully-mechanized backfill mining (FMBM) (Ju et al 2009; Zhang and Miao 2006).…”

Section: Introductionmentioning

confidence: 99%

Strata behavior at fully-mechanized coal mining and solid backfilling face

et al. 2016

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Taking Ping Dingshan Coal Mine Group 12 as an example, this paper explains the system layout, key equipment and backfilling technology in detail. It probes into the characteristic of rock strata movement behavior and surface deformation above the gob area through in-site measurement method. The results show that as the overburden strata are effectively supported by the backfill body in mined out areas, there were no evident phenomena as first weighting or periodic weighting during mining process. Besides, influencing scope of advanced support pressure and the strata behavior degree were much smaller than that of the traditional methods of caving mining. Since overburden strata had been well supported by backfill body, it shows the posture of sinking slowly, only resulting in bending zone and minor fracture zone.

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“…To improve coal mining safety and efficiency and address environmental pollution issues, domestic and foreign scholars have carried out much research, coupled with new practices. Various backfill mining methods such as pneumatic, hydraulic, cemented paste and high water material have been advanced (Tapsiev et al, 2009;Belem and Benzaazoua, 2008;Seryakov, 2008;Donovan and Karfakis, 2004;Rankine and Sivakugan, 2007;Zhang et al, 2008). A research team from China University of Mining and Technology has developed a set of unique techniques called solid backfilling mining technology (Ju et al, 2009;Miao, 2010b), and successfully solved this technical issue.…”

Section: Introductionmentioning

confidence: 99%

“…In general, these trapped resources account for 10–40% of the recoverable reserve, but the percentage may reach 100% in certain mining areas (Miao and Qian, 2009; Ju, 2008). A large portion of these trapped coal resources is buried under about 125 major bodies of water, including the Huaihe and Sihe rivers, the Beijing–Hangzhou canal, and the Weishan, Tai, Daye, and Pohai Lakes and their dams (Wu et al , 2007; Chen and Li, 2010).…”

Section: Introductionmentioning

confidence: 99%

Application of solid backfill mining techniques for coal mine under embankment dam

2013

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To mine coal resources trapped under embankment dams safely and efficiently while, at the same time, disposing of waste rock, solid backfill mining has been proposed as a solution. The extreme value of dam deformation was obtained by analysing geological conditions in the area and structural characteristics of the dam. It was determined that the filling ratio of the working face and the equivalent mining height were the two key factors that control dam deformation. In addition, the extreme values of these two key factors varied with the distance between the working face and the embankment dam in a regular pattern. When mining was completed at the first working face in the pilot area, the maximum sink value of the dam was 42 mm, and the maximum horizontal strain was 0?16 mm m 21 . Field demonstrations have shown that solid backfill mining is effective in controlling strata movement and surface deformation.

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Development of the long-distance pipeline transport for backfill mixes in terms of Oktyabrsky Mine

Cited by 12 publications

References 5 publications

Archives of Mining Sciences

Archives of Mining Sciences

Strata behavior at fully-mechanized coal mining and solid backfilling face

Application of solid backfill mining techniques for coal mine under embankment dam

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