Prediction of Water Inrush Areas Under an Unconsolidated, Confined Aquifer: The Application of Multi-information Superposition Based on GIS and AHP in the Qidong Coal Mine, China

Chen, Luwang; Feng, Xiaoqing; Xu, Dongqing; Zeng, Wen; Zheng, Zhiyuan

doi:10.1007/s10230-018-0541-1

Cited by 27 publications

(13 citation statements)

References 24 publications

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“…It is described as a way to convert intangible factors into numerical values, following which a series of pairwise comparisons can be carried out based on the degree of importance of each influencing factor to calculate the weight of each factor. This method solves the problem of evaluating factors that are difficult to quantify or prioritize [32][33][34]; the basic steps are as follows:…”

Section: Analytical Hierarchy Process (Ahp)mentioning

confidence: 99%

Evaluation on the Stability of Vertical Mine Shafts below Thick Loose Strata Based on the Comprehensive Weight Method and a Fuzzy Matter-Element Analysis Model

et al. 2019

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Damage to mine shafts located below thick loose aquifers, caused by coal seam mining, can seriously affect the operational safety of mines. In view of such a problem, the comprehensive weight method and the fuzzy matter-element analysis method were used to analyze and evaluate the stability of mine shafts below thick, loose aquifers. Based on data relating to shaft structure parameters collected from fifteen damaged shafts in coal mines in East China, a comprehensive analysis was performed. The results showed that (1) the two indexes of surface subsidence velocity and water level drop value at the bottom of a loose aquifer have a large influence on the stability of shafts below thick loose aquifers, and (2) the predicted results of thirteen sets of samples were the same as the results measured during actual production; the accuracy of the model was 86.67%. The comprehensive weight method and the fuzzy matter-element analysis model both show good reliability for evaluating the stability of mine shafts below thick loose aquifers and can provide a scientific reference for the analysis of the stability of mine shafts in areas with thick loose strata, as well as for the design of comprehensive control plans that could subsequently be implemented.

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Section: Analytical Hierarchy Process (Ahp)mentioning

confidence: 99%

Evaluation on the Stability of Vertical Mine Shafts below Thick Loose Strata Based on the Comprehensive Weight Method and a Fuzzy Matter-Element Analysis Model

et al. 2019

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“…Currently, remarkable theory and practice bases have been achieved by research carried out on the failure law, water inrush mechanism, and water inrush prediction [10][11][12][13][14][15][16][17][18]. Yin et al [19] developed a numerical model to predict the time and the longwall locations of flood occurrences.…”

Section: Introductionmentioning

confidence: 99%

Design of Longwall Coal Pillar for the Prevention of Water Inrush from the Seam Floor with Through Fault

et al. 2021

Geofluids

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Setting up a waterproof coal pillar is an important measure to prevent water inrush from the Weibei mining through fault floor. Based on the plastic slip line field theory, a mechanical model of floor water inrush induced by confined water in the through fault zone was established. The mechanical expressions of confined water pressure and the width of the waterproof coal pillar under the state of limit equilibrium were derived. Combining the laws of floor deformation, failure and fault activation under two kinds of coal pillar width, the safety width of the waterproof coal pillar was determined. Furthermore, the safety threshold is better than the empirical value mentioned in the “coal mine safety regulations.” Following this, grouting transformation was carried out on the K2 sand layer of the cut roadway floor. This provided a theoretical basis and engineering practice for water disaster prevention and the control of the structural floor under similar conditions in the Weibei mining area for future benefit.

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“…Hu et al obtained the weights of the evaluation factors through AHP and the entropy weight method and further determined water inrush risk zonation by using GIS technology [15]. Similar studies also include Liu et al [16], Chen et al [17], and Ruan et al [18]. This type of method can better solve the problem of water inrush prediction [19].…”

Section: Introductionmentioning

confidence: 99%

Multisource Information Risk Evaluation Technology of Mine Water Inrush Based on VWM: A Case Study of Weng’an Coal Mine

Zhang

et al. 2021

Geofluids

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The use of multisource information fusion technology to predict the risk of water inrush from coal floor is a research hotspot in recent years, but the current evaluation method is mainly based on a constant weight evaluation model. Using constant weights to reflect the control effect of changing factor state values on water inrush evaluation has obvious limitations, and it is unable to describe the control effect of the hydrogeological condition mutation on the water inrush from the floor. In order to solve the above problems, this manuscript introduces the idea of variable weight into the field of water inrush evaluation, expounds on the significance of variable weight theory for water inrush evaluation, analyzes the characteristics of mine water inrush variable weight evaluation, and, on this basis, further combines GIS-based multisource information fusion technology and typical engineering case to compare with the evaluation effect map, evaluation unit, and comprehensive evaluation values. The differences between the variable weight model (VWM) and the constant weight model (CWM) are analyzed, which proves that the evaluation process of the variable weight evaluation model is more reasonable and can effectively improve the evaluation accuracy.

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Prediction of Water Inrush Areas Under an Unconsolidated, Confined Aquifer: The Application of Multi-information Superposition Based on GIS and AHP in the Qidong Coal Mine, China

Cited by 27 publications

References 24 publications

Evaluation on the Stability of Vertical Mine Shafts below Thick Loose Strata Based on the Comprehensive Weight Method and a Fuzzy Matter-Element Analysis Model

Evaluation on the Stability of Vertical Mine Shafts below Thick Loose Strata Based on the Comprehensive Weight Method and a Fuzzy Matter-Element Analysis Model

Design of Longwall Coal Pillar for the Prevention of Water Inrush from the Seam Floor with Through Fault

Multisource Information Risk Evaluation Technology of Mine Water Inrush Based on VWM: A Case Study of Weng’an Coal Mine

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