Modification of rock stress factor in the stability graph method: a case study at the Alhada Lead-Zinc Mine in Inner Mongolia, China

Jia, Hanwen; Guan, Kai; Zhu, Wancheng; Liu, Honglei; Liu, Xige

doi:10.1007/s10064-020-01753-7

Cited by 7 publications

(6 citation statements)

References 10 publications

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“…Figure 1 shows the areas on the east of the line form the "eastern district," and the areas on the west form the "western district" in the tested Pb-Zn mine [33]. A geological model dealing the stope from a 768 m level to the 928 m level in the 3DMine software was established by field measurement and the existing engineering geological log.…”

Section: Engineering Backgroundmentioning

confidence: 99%

“…It is calculated by equations ( 4) and ( 5). e detailed procedure of these parameters can be found in the literature of Jia et al [33].…”

Section: Control Principle Of Mathews Stability Diagrammentioning

confidence: 99%

“…For the rock materials, the tensile strength is much lower than the compressive strength, and hence, the instability caused by the tensile failure of rock mass must be estimated when calculating the modified stress coefficient, which is ignored by the current stability graph method [36]. Considering the influence of spatial multidimensional stress on the rock stress coefficient A, the authors modified the calculation method of the rock stress coefficient A by Hoek-Brown criterion, including tensile truncation [33]. e Mathews stability graph evaluation method suitable for thin orebody stope is obtained.…”

Section: Control Principle Of Mathews Stability Diagrammentioning

confidence: 99%

“…Radius HR. e rock stress coefficient calculation method proposed by Jia et al [33] requires a numerical simulation to obtain the highest and lowest principal stresses (σ 1 and σ 3 , respectively) in the center of the stope's critical face. is study uses the FLAC 3D and Rhino software to build numerical models.…”

Section: E Determination Of Stability Number N and Hydraulicmentioning

confidence: 99%

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A Large Goaf Group Treatment by means of Mine Backfill Technology

Jia

Yan

Yilmaz

2021

Advances in Civil Engineering

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There are few studies on the management methods of large-scale goaf groups per the specific surrounding rock mass conditions of each goaf. This paper evaluates comprehensively the stability of the multistage large-scale goaf group in a Pb-Zn mine in Inner Mongolia, China, via the modified Mathews stability diagram technique. The volume of each goaf to be backfilled was quantitatively analyzed in the combination of theoretical analysis and three-dimensional laser scanning technology. The corresponding mechanical characteristics of the filling were determined by laboratory testing while formulating the treatment scheme of the large goaf group using the backfill method. The applicability of the treatment scheme using the backfill was verified by the combination of the numerical results of the distribution of the surrounding rock failure zone and the monitored data of the surface subsidence. The research results and treatment scheme using the backfill can provide a reference for similar conditions of mines worldwide.

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Section: Engineering Backgroundmentioning

confidence: 99%

“…It is calculated by equations ( 4) and ( 5). e detailed procedure of these parameters can be found in the literature of Jia et al [33].…”

Section: Control Principle Of Mathews Stability Diagrammentioning

confidence: 99%

Section: Control Principle Of Mathews Stability Diagrammentioning

confidence: 99%

Section: E Determination Of Stability Number N and Hydraulicmentioning

confidence: 99%

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A Large Goaf Group Treatment by means of Mine Backfill Technology

Jia

Yan

Yilmaz

2021

Advances in Civil Engineering

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“…For instance, since 1980, many researchers have verified the Mathews stability diagram method by collecting more field data of deep mining (mostly less than 1,000 m) and constantly modified it. After 2000, according to many newly increased example data, this method has been constantly improved and has achieved good application in many mines (Jia et al 2020;Trueman et al 2000). However, the above method can only be used for static evaluation and cannot consider the time effect of rock deformation and failure (Xia et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Stope structure evaluation based on the damage model driven by microseismic data and Mathews stability diagram method in Xiadian Gold Mine

Liu

Zhao

Zhang

et al. 2021

Geomatics, Natural Hazards and Risk

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To obtain a better economic benefit, Xiadian Gold Mine intended to increase the stope structure parameter from 2.5 m (height) to 8 m. A test stope using the new structure parameter was mined to verify the surrounding rock's stability. Based on the mechanical indices relating to the ore and rock, the "static" stability of the test stope under the new stope structure was analyzed by the Mathews stability diagram method. Then, a microseismic (MS) monitoring system was installed around the test stope to determine the "dynamic" stability of the test stope during mining. The spatio-temporal evolution of MS events was analyzed to understand the failure behaviors of the surrounding rock. Based on the MS monitoring results, a damage model was established and used to quantify the damage degree and dimension within the surrounding rock during mining the test stope. The study results show that the damage degree increased from less than 0.05 to 0.6, the damage dimension increased from less than 1500 m 2 to more than 14,000 m 2 , and the shear plastic zone appeared around the two sidewalls and the roof of the stope. The results show that the test stope is at risk of instability under the new stope structure.

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