Vertical Variability Of Hydrogeological Characteristics Of Luohe Formation By Double Packer System Pumping Test,
2023
CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China; Shaanxi Key Laboratory of Prevention and Control Technology for Coal Mine Water Hazard, Xi’an 710077, China
Vertical Variability Of Hydrogeological Characteristics Of Luohe Formation By Double Packer System Pumping Test, Li Chaofeng, Liu Yexian, Zhang Jinkui, Ren Dengjun, Hou Tao, Liu Zengping, Xu Xinqi, Ma Ji, Wang Qingzhen, Duan Xiliang, Xing Jiebo, Li Yang
Coal Geology & Exploration
To investigate the hydrogeological conditions of the thick Luohe Formation in Ordos Basin and quantitatively evaluate vertical variation characteristics of its aquifer’ s water-rich, proposes the method of using the coefficient of transmissibility to evaluate the water-rich of the aquifer, and give the seven level classification standard of water-rich by the method of determining coefficient of transmissibility. The double-packer system was used to carry out the pumping tests of 10 vertical sections of fixed thickness of the Luohe Formation in the DJ1 and DJ2 boreholes in the Gaojiabao mine field, shaanxi, and the hydrogeological parameters were calculated. Using the comprehensive …
Characteristics And Genetic Mechanism Of Low Sulfate In High-Salt Groundwater Of Permian Sandstone In Fudong Mining Area, Huainan,
2023
School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China; School of Resource and Environmental Engineering, Anhui University, Hefei 230601, China
Characteristics And Genetic Mechanism Of Low Sulfate In High-Salt Groundwater Of Permian Sandstone In Fudong Mining Area, Huainan, Jiang Chunlu, Huang Wendi, Fu Xianjie, Zheng Liugen, Cheng Shigui, Shan Chonglei
Coal Geology & Exploration
Hydrogeochemistry research of groundwater in coal mining areas is of great significance to the prevention and control of mine water and the comprehensive utilization of water resources. In terms of the low surfate of Permian sandstone water in Fudong mining area, Anhui Huainan Coalfield, the hydrochemical characteristics, water-rock interaction and low sulfate genesis of sandstone water were studied through water sampling and test by multivariate statistical method, in combination with the hydrogeological condition analysis and the sulfur and oxygen isotope technology. The results show that the Permian sandstone water in the study area is weakly alkaline, with an average TDS …
Evaluation Of Water Quality And Identification Of Pollution Factors In Mining Subsidence Area With High Phreatic Water Level,
2023
National Engineering Laboratory for Protection of Coal Mine Eco-Environment, Huainan 232001, China; Anhui Province Engineering Research Center of Coal Mining Green Low-Carbon Development, Huainan 232001, China
Evaluation Of Water Quality And Identification Of Pollution Factors In Mining Subsidence Area With High Phreatic Water Level, Hu Lin, Chen Yongchun, Xu Yanfei, Li Bing, Wang Jin, An Shikai, Chen Chen, Sun Hongjie, Miao Wei
Coal Geology & Exploration
Huainan mining area is characterized by a high phreatic water level, as well as a wide range and large area of coal mining subsidence areas, with the water quality monitoring data missing and prominent water environment. Therefore, the evaluation of water quality monitoring and identification of pollution factors in large subsidence area is of great significance to regional water environmental governance. Specifically, the water quality of the subsidence area was evaluated with the Nemerow pollution index method by testing the water samples collected from 175 sampling points in the study area. Meanwhile, the eutrophication state of water bodies was evaluated …
A Method For Evaluating Aquiclude Stability In The Water Conservation-Based Mining Of Shallowly Buried Coal Seams In Ecologically Vulnerable Areas In Northwest China,
2023
Institute of Resources and Earth Sciences, China University of Mining and Technology, Xuzhou 221116, China; Inner Mongolia Coal Exploration New Energy Development Co. LTD, Hohhot 010010, China
A Method For Evaluating Aquiclude Stability In The Water Conservation-Based Mining Of Shallowly Buried Coal Seams In Ecologically Vulnerable Areas In Northwest China, Li Heng, He Tao, Guo Bin
Coal Geology & Exploration
Water conservation and coal mining are both critical to Northwest China. Water conservation-based coal mining is an important technology for the coordinated development of coal and water resources in this region. In this technology, the evaluation of aquiclude stability is critical. Due to the shallow depth of coal seams, intense topographic cutting, and complex changes in near-surface aquifers in the ecologically vulnerable areas in Northwest China, there exist large errors between traditional methods for aquiclude evaluation and the actual hydrological observations in these areas. To address this challenge, this study develops using the 3D geological modelling combined with numerical simulation …
Micp Restoration Law Of Coal Mining Induced Ground Fissures And Its Influencing Factors,
2023
School of Mining and Mechanical Engineering, Liupanshui Normal University, Liupanshui 553004, China; College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710065, China; College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
Micp Restoration Law Of Coal Mining Induced Ground Fissures And Its Influencing Factors, Li Tao, Gao Ying, Yan Jingwang, Zhang Jiarui, Kou Guigui, Ma Tengfei, Mei Aoran
Coal Geology & Exploration
The coal mining induced ground fissures in the loess covered area of northwest China cause shallow groundwater resource leakage and soil instability. Therefore, the experimental study was conducted on Microbial Induced Carbonate Precipitation (MICP) restoration of coal mining induced ground fissures in the loess covered area. Specifically, the characteristics of mining induced ground fissures were observed and their development characteristics were revealed based on Ningtiaota Coal Mine in northern Shaanxi. The coal mining induced ground fissures in loess were classified with consideration to the observed mine pressure. Based on the classification and characteristics of coal mining induced ground fractures, the …
Detection Of Small Objects In Open-Pit Coal Mine Stopes Using Uav Remote Sensing Images,
2023
College of Geological Engineering and Geomatics, Chang’an University, Xi’an 710061, China
Detection Of Small Objects In Open-Pit Coal Mine Stopes Using Uav Remote Sensing Images, Liu Mingrui, Che Ben, Dong Hongbo, Zhu Ruoli
Coal Geology & Exploration
Open-pit coal mine stopes witness frequent vehicle accidents due to their complex terrains. Therefore, accurately positioning vehicles in the stopes is critical to safe coal mining. To overcome the inaccurate positioning of small targets in the mining areas using Unmanned aerial vehicle (UAV) remote sensing images, this study proposed an improved YOLOv7 model for object detection. First, to expedite the reasoning of the YOLOv7 network, the ELAN module in the original YOLOv7 model was improved by introducing partial convolution. Based on this, the eSE channel attention mechanism was combined to form the PConv-eSE convolution attention module. The purpose is to …
Mechanical Properties And Strength Deterioration Mechanism Of Soil In Inner Dump Of Open-Pit Coal Mine Under The Action Of Freeze-Thaw Cycles,
2023
College of Mining, Liaoning Technical University, Fuxin 123000, China
Mechanical Properties And Strength Deterioration Mechanism Of Soil In Inner Dump Of Open-Pit Coal Mine Under The Action Of Freeze-Thaw Cycles, Zhang Heyong, Wang Xuedong, Zhu Yongdong, Wang Haipeng, Qi Lihui
Coal Geology & Exploration
In order to investigate the influence mechanism of freeze-thaw cycles on the structure and mechanical properties of soil, the typical clay soil in the inner dump of Yuanbaoshan open-pit coal mine in Inner Mongolia was taken as the research object, and the simulation analysis of the internal temperature, moisture and stress fields of the soil was carried out through laboratory freeze-thaw cycle tests and MatDEM numerical simulation. The results show that: freeze-shrinkage occurs to the soil in the dump after the freeze-thaw cycles, and the stress-strain curve shows the trend of strain softening at low confining pressure for shear failure, …
Intelligent Optimization Method For Tunnel Rotary Drilling Based On Drill String Status Estimation,
2023
China Coal Research Institute, Beijing 100013, China; CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China
Intelligent Optimization Method For Tunnel Rotary Drilling Based On Drill String Status Estimation, Yao Ningping, Wei Hongchao, Zhang Jinbao, Lu Chengda, Li Hao, Yao Yafeng, Ke Yougang, Zhang Youzhen
Coal Geology & Exploration
To address the issue in existing research where it is difficult to obtain bottom-hole drilling parameters while drilling, and to overcome the problem of low accuracy and insufficient improvement when optimizing rotary drilling operational parameters using only borehole data, an intelligent optimization method for near-horizontal tunnel rotary drilling based on drill string status is proposed. This involves constructing an in-hole state observer to estimate bottom-hole drilling parameter information. Firstly, the characteristics of rotary drilling in underground coal mine tunnels are analyzed, considering the constraints of actual drilling, and an optimization target evaluation method for mechanical drilling speed and drill bit …
Rate-Of-Penetration (Rop) Prediction Model Based On Formation Characteristics Of Extremely Thick Plastic Mudstone In South China Sea,
2023
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China
Rate-Of-Penetration (Rop) Prediction Model Based On Formation Characteristics Of Extremely Thick Plastic Mudstone In South China Sea, Zeng Xiaolong, Li Qian, Wei Hongchao, Chen Jiahao, Zhu Haiyan
Coal Geology & Exploration
In terms of petroleum and gas resources, South China Sea is the important energy replacement area in China. However, most of the reservoirs are buried deep, and the strong plasticity of the formation under high confining pressure and the complex geological environment seriously affect the drilling efficiency. It is also very difficult to accurately predict the ROP. Hence, a set of intelligent ROP prediction model was established for the extremely thick mudstone formation with unique viscoelastic and strong plastic characteristics in South China Sea. The model took the actual data of 10 wells in an area of South China Sea …
Sustainability Challenges Produced By Melting Ice Sheets: Insights From The Sediment Archive,
2023
Montclair State University
Sustainability Challenges Produced By Melting Ice Sheets: Insights From The Sediment Archive, Sandra Passchier
Sustainability Seminar Series
Glacial ice is susceptible to atmospheric and ocean warming, and ice mass loss is a major concern due to its impact on sea level, hazards such as glacial outburst floods, and water resources, affecting millions of people. However, the fate of land ice in the light of prolonged warming is a topic of major uncertainty because of the complex feedbacks of land ice in the climate system. This talk will highlight how glacial sedimentologists use geological archives of different time resolutions, from years to millions of years, to understand an ice-sheet’s response to warming. Records of relatively recent annual glacial …
Livelihoods, Migration, And Adaptation To Climate Change In Southeast Asia,
2023
Montclair State University
Livelihoods, Migration, And Adaptation To Climate Change In Southeast Asia, Timothy Gorman
Sustainability Seminar Series
In this talk, I examine the complex, bi-directional relationship between migration and environmental change in Southeast Asia. Drawing first on research in Cambodia, I discuss the impacts of in-migration on environmental conditions in coastal regions. I then discuss the role of global climate change and sea-level rise as drivers of out-migration from Vietnam’s Mekong River Delta, drawing on data from the Vietnamese census.
Integration Of Algae And Biomass Processes To Synthesize Renewable Bioproducts For The Circular Economy,
2023
University of South Florida
Integration Of Algae And Biomass Processes To Synthesize Renewable Bioproducts For The Circular Economy, Jessica Martin
USF Tampa Graduate Theses and Dissertations
Rapid population growth and global industrialization have substantially heightened the demand for fossil-based fuels and products in various sectors of the global economy, including energy production, transportation fuels, and as raw materials for petrochemicals. The intense consumption of fossil fuels has caused immense environmental impacts, especially pertaining to carbon dioxide emissions. Shifting to renewable feedstocks (raw materials) is expected to reduce these emissions by lowering the carbon footprint of fuels and products compared to traditional fossil-derived alternatives. This transition aligns with the goal of creating a sustainable and circular economy, emphasizing efficient resource use, and reducing waste generation through recycling …
Does Green Energy Really Matter For Environment And Economic Sustainability? Validating The Long-Standing Existing Empirics On Pakistan Economy,
2023
PhD Scholar, University of Kotli, Azad Kashmir
Does Green Energy Really Matter For Environment And Economic Sustainability? Validating The Long-Standing Existing Empirics On Pakistan Economy, Syed Kafait Hussain Naqvi
CBER Conference
The empirical outcomes of the study validate the widespread concern of the literature on the existence of the “growth hypothesis” which supports, that there is a systematic positive causation running from green energy to economic sustainability. The study findings suggest that regulations in the energy sector can encourage the applications of green energy resources, particularly in the real sector of the economy, leading to reduced emissions.
Demand Analysis Of Energy Mix In District Kotli Azad Jammu And Kashmir, Pakistan,
2023
Lecturer, University of Kotli, Azad Kashmir
Demand Analysis Of Energy Mix In District Kotli Azad Jammu And Kashmir, Pakistan, Syed Kafait Hussain Naqvi
CBER Conference
This study is an effort to empirically analyze the household’s demand for energy mix (electricity, liquefied petroleum gas (LPG), kerosene, and firewood) in the District Kotli, AJK. The study estimates the demand elasticities (price and expenditure) by employing the Linear Approximate Almost Ideal Demand System (LA-AIDS) to 384 households sampled across District Kotli, AJK in 2017. The empirical estimations are carried out by using the Seemingly Unrelated Regression (SUR), keeping intact the adding-up, homogeneity and symmetry restrictions.
Resource Scarcity And Sustainability: Exploring The Water, Energy And Food Nexus,
2023
SZABIST University, Karachi
Resource Scarcity And Sustainability: Exploring The Water, Energy And Food Nexus, Madiha Hussaini, Riffat Mughal
CBER Conference
This paper focuses on understanding the significance, linkage, issues and prospects of food, water, and energy nexus in the context of Pakistan. It aims to facilitate in exploring measures and developing policies that can be adopted to ensure these essential resources’ management, usage and availability while meeting the sustainable development goals. The Pakistan’s data used for GLS was from 1991 to 2020. The results showed that the availability of freshwater withdrawals in Pakistan for agriculture irrigation, population, and agricultural land has a positive and significant impact on the Food Production Index.
“This Is A Book About Relations”: Pollution Is Colonialism By Max Liboiron,
2023
University of British Columbia - Okanagan
“This Is A Book About Relations”: Pollution Is Colonialism By Max Liboiron, Thomas Letcher-Nicholls
The Goose
Book Review of Pollution is Colonialism (2021) by Max Liboiron.
Beyond Sustainability Curriculum Integration - Educating Otherwise,
2023
West Chester University of Pennsylvania
Beyond Sustainability Curriculum Integration - Educating Otherwise, Paul Morgan
Sustainability Research & Practice Seminar Presentations
Professor Paul Morgan, Educational Foundations and Policy Studies - Beyond Sustainability Curriculum Integration - Educating Otherwise
The Ecological Consequences Of Salty Fresh Waters,
2023
The University of Toledo
The Ecological Consequences Of Salty Fresh Waters, Bill Hintz
Sustainability Seminar Series
Freshwater ecosystems worldwide are getting saltier. This will change the ecology and functioning of freshwater ecosystems and threatens the services fresh waters provide us as humans, such as drinking water quality. In this presentation, Dr. Hintz will explain new research that investigates the ecological consequences of freshwater salinization and how current water quality guidelines need to be reevaluated to protect freshwater ecosystems.
Environmental Issues, Conservation Challenges, And Sustainable Solutions At The Villa Of The Antonines,
2023
Montclair State University
Environmental Issues, Conservation Challenges, And Sustainable Solutions At The Villa Of The Antonines, Deborah Chatr Aryamontri, Gregory A. Pope
Sustainability Seminar Series
The ‘Villa of the Antonines’ Project is an ongoing, long-term historical and archaeological interdisciplinary research effort and focuses on a largely neglected site that was for over a century one of the most important residences of the Roman imperial Antonine dynasty, located 18 miles southeast of Rome. Despite its historical importance, it is continuously exposed to human and natural risks. This paper will discuss the challenges faced by the research team at the site, such as climate change, environmental degradation and human damage and how these issues are monitored and studied in search of viable and sustainable solutions.
Optimizing The Dynamic Replacement Of Soft Soils With Sand Using A Fem Tools,
2023
University of South Florida
Optimizing The Dynamic Replacement Of Soft Soils With Sand Using A Fem Tools, Walid Salem A Elsiwi
USF Tampa Graduate Theses and Dissertations
First a dynamic finite element methodology (FEM) was developed to simulate an entire dynamic replacement (DR) program of clay with sand involving multiple poundings. The main objective of this research was to employ FEM and geotechnical test data such as cone penetration test (CPT) data at the site to predict the maximum achievable sand column (SC) depth and the corresponding optimum levels of attributing parameters such as number and height of pounder drops. Another goal was to predict the pore pressure generated in clay due to pounding. A full-scale ground improvement project was used to guide the analytical process. Comparison …
