Improvement of Support Technology in Artemevsk Mine of Vostoktsvetmet

Krupnik, L. A.; Shaposhnik, Yu. N.; Shokarev, D; Shaposhnik, S. N.; Конурин, А. И.

doi:10.1134/s1062739117063173

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…Figure 1 depicts loading of a steel frame support in case of a rock cavity filled with phenolic resins [8]. The roadway heading and support installation flow chart is divided into a few stages: a roadway of a certain length is headed; roof support system is installed at a certain distance from the heading face, which induces partial relaxation of face rock mass from the initial stresses.…”

Section: Stress-strain Analysis Of the Roadway In Unstable Rock Massmentioning

confidence: 99%

“…The geometrics assumed in the calculation for the roadway, steel frame, lumber lagging and spaces filled with phenolic resins are conformable with the mining conditions of ore bodies in Eastern Kazakhstan. The mechanical parameters of deformable media are selected from the actual experimental data [7,8]. It is supposed that deformation of rock mass, support and phenolic resin fill can be described using theory of elasticity.…”

Section: Stress-strain Analysis Of the Roadway In Unstable Rock Massmentioning

confidence: 99%

“…It is also effective to fill roof cavities with phenolic or organomineral resins. This technology was tested in development roadways in Vostoktsvetmet's Orlovskaya Mine [7,8]. The test proves that filling of roof voids with phenolic resins ensures stability of accident-hazardous roadways and prevents propagation of caving in the dome-shaped zones in roadway roof rocks.…”

Section: Introductionmentioning

confidence: 99%

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Stress–strain behavior of rock mass around the roadway with roof support of rock fall-hazardous zones by the phenolic resin fill

Seryakov

Krasnovsky

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Section: Stress-strain Analysis Of the Roadway In Unstable Rock Massmentioning

confidence: 99%

Section: Stress-strain Analysis Of the Roadway In Unstable Rock Massmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stress–strain behavior of rock mass around the roadway with roof support of rock fall-hazardous zones by the phenolic resin fill

Seryakov

Krasnovsky

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…If we define the parametric aspects of anchoring lin ings, then the choice of conditions under which the pressure of rocks appears is the intensities that can be determined according to the [7]: rock pressure remains low if the rock containment does not reach 50 mm; the average intensity of the rock pressure allows be ing determined already under the condition of achieving displacements of 50-200 mm; considerable intensity of the pressure of the moun tain type is determined under the condition that the dis placements reach the parameters defined as the excess over 200 mm.…”

mentioning

confidence: 99%

Developing technological schemes of driving workings with controlled resistance of contours

Dyomin¹,

Batyrkhanova²,

Tomilov³

et al. 2019

NVNGU

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Mine workings represent a technological hazard in the absence of devices for their safe development. Purpose. Reinforcement of the contours of mine workings as a safety measure of developing mine workings. methodology. The study algorithm is represented in the sequence of stages considering the depth of the excavation, the orientation of the excavation relative to the coal seam, the structure of the coalbearing layer, the mechanical characteristics of the enclosing array in the preliminary and limit state of typical cross section of the development, the construction and technological characteristics of the supports. Findings. The study offers data that indicate that if the development area belongs to a flooding area, then the re installation of finger bars can be less effective by more than 40%. Field studies have shown that when the second level roof bolting is installed in workings, which are used repeatedly, then they are most likely to have deformed parts in the roof and sides. Originality. For the first time mathematical models for determining the stability of mine workings are used, as well as models that allow extending the contours of mine workings safely. The requirements for materials that allow carry ing out reinforcement of contours considering the structure and technological scheme of the applied technology were determined. This article presents a mathematical model, the approbation and verification of the data obtained at the experimental location. Observations were made regarding the state of workings anchored by roof bolting in the vicin ity of geological faults in the zone of influence of high rock pressure of Kostenko, Saranskaia, and Abaiskaia Mines of JSC "Arcelor Mittal Temirtau". Effects of primary stresses on opening strength are determined. Practical value. The acquired technology can be used in a controlled environment for the development of mine workings, which have signs of residual capacity and can be developed at better rates and volumes. Testing the method of automated calculation of anchoring parameters and the implementation of research results can improve the tech nological schemes of the working. Consistencies in calculating the stability of mine workings from the parameters of anchoring was achieved.

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