Article
Environmental Sciences
Yang Chen, Shengwen Yu, Qiuxiang Tao, Guolin Liu, Luyao Wang, Fengyun Wang
Summary: InSAR was used to monitor surface subsidence in a mining area in Shandong Province, China. While InSAR can accurately detect the location, range, and spatial change trend of subsidence, it has limitations in detecting the subsidence center and areas with high displacement rates. By establishing a correction model based on the distance from leveling points to the subsidence center, more accurate monitoring results consistent with the actual situation were obtained.
Article
Geochemistry & Geophysics
Weiping Shi, Kaixin Li, Shengwen Yu, Cunzhi Zhang, Jingkai Li
Summary: This study analyzed the law of mining ground subsidence under ultrathick loose layer by field measurement and similar simulation test. It found that ground subsidence is mainly composed of bedrock subsidence and hydrophobic settlement of ultrathick loose layer.
Article
Agricultural Engineering
Yuyang Fan, Zhengxue Zhang, Zijun Wang, Haoyang Yu, Xiangchen Kong, Peijun Li, Ming Li, Rui Xiao, Chao Liu
Summary: By monitoring the radicals in different lignin pyrolysis processes, this study revealed the regularity and contributed to the development of lignin pyrolysis mechanisms based on radicals.
BIORESOURCE TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Xiaozhen Wang, jianlin Xie, Weibing Zhu, Jialin Xu
Summary: In this study, the deformation and movement characteristics of high-level key stratums during mining at a coal mine were investigated using DOFS and MPBXs. The monitoring results showed that the shallow stratums experienced greater deformation and were affected earlier than the deep stratums. By using MPBX technology, the four-stage characteristics of high-level key stratum movement were obtained, showing that the key stratums tend to sink as a whole with the advancement of the working face.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Zelin Ma, Zefa Yang, Xuemin Xing
Summary: The study presents a method to assess the errors of underground mining-induced subsidence estimates and discusses the error pattern and influencing factors. The results show that the errors of the estimates follow a peak-to-valley shape spatially and are smaller under hard lithology compared to soft lithology.
Review
Geochemistry & Geophysics
Shifang Zhang, Jin Zhang
Summary: This research improves the accuracy and reliability of ground mining subsidence prediction by using the Kalman filter method to improve the Knothe time function.
Review
Geochemistry & Geophysics
Shifang Zhang, Jin Zhang
Summary: This study improved the accuracy and reliability of ground subsidence prediction by enhancing the Knothe time function with the Kalman filter method.
Article
Geochemistry & Geophysics
Zhongyuan Gu, Yanlin Zhao, Rugao Gao, Lewen Wu
Summary: This paper introduces an object-oriented probability integration prediction model framework for accurately predicting surface subsidence caused by mining. The reliability of the model is tested using engineering cases, and the main influencing factors of mining subsidence are analyzed.
Article
Geosciences, Multidisciplinary
Steven Lingrey
Summary: Structural restoration aims to restore folded, faulted stratigraphic horizons back to their original, horizontal geometry. The method of 2D sequential restoration is used to reconstruct the geometric evolution of structural features using stratigraphic datums. In the Paradox Basin, this study reconstructs the missing Upper Cretaceous and Lower Tertiary stratigraphy to capture the development of significant faulting and folding events.
JOURNAL OF STRUCTURAL GEOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Junbiao Ma, Dawei Yin, Ning Jiang, Sheng Wang, Dehao Yao
Summary: This study established a novel mining subsidence superposition model that successfully predicted surface subsidence caused by underground mining by combining two theories, and verified its applicability in practical engineering.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Chunyi Li, Laizhong Ding, Ximin Cui, Yuling Zhao, Yihang He, Wenzhi Zhang, Zhihui Bai
Summary: This paper addresses the problems in predicting progressive residual surface subsidence caused by underground coal mining and proposes a mathematical model based on the logistic time function. The results demonstrate that the logistic time function is an ideal time function reflecting surface subsidence features and the amount of in situ data has a significant influence on predicted values.
Article
Engineering, Mechanical
Ruikai Pan, Yong Li, Hui Wang, Jie Chen, Youlin Xu, Hongyun Yang, Shugang Cao
Summary: This study developed a new model to identify the initiation of subcritical subsidence in deep pillarless mining by utilizing the key stratum theory. The findings showed that the key stratum above two panels integrally fails as an L-shaped plate, causing the transition from super-subcritical to subcritical subsidence stage. The study contributes to the understanding of subsidence mechanism in deep pillarless mining and provides new insight into designing pillarless mining with surface subsidence control.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Construction & Building Technology
Zhengkai Yang, Zhiheng Cheng, Zhenhua Li, Chunyuan Li, Lei Wang, Shuaifeng Yin, Jinhu Zhang
Summary: The research aims to understand the movement laws of overlying strata above a fully mechanized coal mining face backfilled with gangue in order to address the issue of surface subsidence during coal mining. The study conducted at Jiulishan Coal Mine in China analyzed the deformation of backfilled gangue, surrounding rock stability, and key strata behavior. The findings suggest that increasing the strength of backfilled gangue can effectively control movement of overlying strata, leading to stable surface subsidence.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
Wei Yin, Kun Zhang, Shenyang Ouyang, Xiaomin Bai, Wenjie Sun, Jingru Zhao
Summary: This study explores the feasibility of using solid waste soda residue to improve gangue cemented backfilling material in coal mining, and presents optimized ratios for the addition of soda residue to enhance material performance. The experimental results show that the addition of soda residue can increase slump, early and later strength, while also promoting hydration reactions and reducing surface subsidence.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Remote Sensing
Shuyi Yao, Keming Yang, Xianglin Dong, Xiaoyu Shi, Jian Wang
Summary: In this study, a new method combining DPM and genetic algorithm is proposed for accurately mapping large-gradient deformation over mining areas. The method consists of two parts: simulation and removal of large-gradient phase using DPM, and optimization of parameters and prediction of subsequent deformation using genetic algorithm. An example application in a mine in Huaibei, China demonstrates the effectiveness of the proposed method.
REMOTE SENSING LETTERS
(2021)
