Yankuang Energy has obtained patents related to tunnel water inflow prediction, utilizing a multi-step approach to improve the accuracy of water inflow forecasts in coal mine tunnels.

March 28 news, the National Intellectual Property Administration’s information shows that Yancoal Energy Group Co., Ltd. has applied for a patent titled “A Method and Device for Predicting the Water Inflow during Coal Mine Tunnel Excavation,” with authorization announcement number CN119167488B, authorized announcement date of March 24, 2026. The application publication number is CN119167488A, the application number is CN202411223415.5, the application publication date is March 24, 2026, and the application date is September 3, 2024. The inventors are Zhang Zhaoyun, Wang Zhongchang, Hu Dongxiang, and Meng Fanzhen. The patent agency is Xi’an Xinnuo Huien Patent Agency (General Partnership), and the patent agent is Zhao Ting. The classification numbers are G06F30/13, G06F30/27, G06F18/214, G06N3/0464, G06F119/02.

The patent abstract shows that the invention provides a method and device for predicting the water inflow during coal mine tunnel excavation, including the following steps: Step 1, exploring geological key parameters of the excavation cross-section to obtain, and collecting the water inflow in the excavation tunnel using a collection device; Step 2, establishing a sample data set for predicting the water inflow during tunnel excavation; Step 3, extracting the main features of the water inflow prediction data; Step 4, training multiple prediction models based on the feature vector samples; Step 5, obtaining the optimal values of the parameters of the predicted models; Step 6, constructing multiple optimized prediction models; Step 7, inputting the key parameter survey values of the unexcavated area of the tunnel to obtain the predicted results for the water inflow during coal mine tunnel excavation. The invention can quickly obtain the water inflow values based on the water inflow collection device and effectively improve the prediction accuracy of the water inflow during coal mine tunnel excavation by considering the prediction results with multiple feature parameters.

Yancoal Energy was established on September 25, 1997, and was listed on the Shanghai Stock Exchange on July 1, 1998, with both the registered and office addresses in Shandong Province. The company is a leading coal enterprise in China, with core businesses covering coal and coal chemical industries, possessing rare overseas coal resources and advantages across the entire industry chain.

Yancoal Energy’s main business includes coal mining, washing and processing, sales, and coal railway transportation, as well as coal chemical and power businesses, belonging to the Shenwan industry of coal - coal mining - thermal coal, involving segments such as thermal coal, coal concepts, and anti-involution.

In terms of operational performance for 2025, Yancoal Energy’s operating revenue reached 1449.33 billion yuan, ranking 2/6 in the industry, with the first place being China Coal Energy at 1480.57 billion yuan; the industry average and median are 588.63 billion yuan and 255.52 billion yuan, respectively. The net profit was 142.26 billion yuan, also ranking 2nd in the industry, while the first place China Coal Energy had a net profit of 218.39 billion yuan, with the industry average and median being 65.88 billion yuan and 22.24 billion yuan, respectively.

Recent patent status of Yancoal Energy Group Co., Ltd. is as follows:

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Editor: Xiao Lang Kuai Bao