During the mining process of 21,215 high-mining coal face, the displacement of both ribs within the range of 130 m in front of the coal face exceeds 1.0 …
Families displaced by the Rajmahal Coal Mining Project in Lalmatia have accused mining giant Eastern Coalfield Limited (ECL) of incomplete rehabilitation and resettlement. ... Angry residents recalled that ECL had also promised electricity, pond and medical facilities after the displacement but none of them had been fulfilled yet. …
With the increasing coal mining depth, dynamic disasters are occurring more frequently in coal mines. The loading rate has a close relation to the mechanical …
In order to meet the ever increasing demand for coal and other minerals, large opencast mining projects are being planned. As the size of the operations increases, slope stability problems also ...
In 2013, Shaanxi Coal and Chemical Industry Group Co., Ltd. conducted directional drilling into the Ordovician limestone (f=10.8) below the coal seam 11# in Sangshuping Mine with a Ф73mm PDM. In 2016, Henan Energy and Chemical Industry Group Co., Ltd. conducted directional drilling into the L10 limestone (f=11) in Chengsilou …
Explore the abundant Mines In Andhra Pradesh. From coal to limestone, delve into the state's mining industry and its impact on the region's economy. ... Mining operations can cause displacement of local communities and socio-economic implications, which should be addressed through meaningful participation in decision-making …
Rasool Bux, who was close Sindh Engro Coal Mining Corporation (SECMC), the company granted the concession to exploit the coal reserves, was said to have helped them with land acquisition in the village. ... Terminsky (2015) argues that the displacement caused by opencast mining has its own unique set issues and accounts for 10.3 % of the total ...
A novel InSAR-based time-series prediction framework was proposed to analyze ground subsidence in underground coal mines in Yuzhou City. The study utilized Sentinel-1A descending track data and employed a deep learning model. Initially, the SBAS-InSAR technique was employed to examine the spatiotemporal evolution patterns of ground …
The green mining system 3,4,5,6,7 includes water preservation mining, subsidence reduction mining, gangue reduction mining, coal and gas co-mining, and underground gasification mining, and it is ...
Due to the rapid industrialization and the development of the economy in each country, the demand for energy is increasing rapidly. The coal mines have to pace up the mining operations with large production to meet the energy demand. This requirement has led underground coal mines to go deeper with more difficult conditions, especially the …
The failure characteristics of roof strata in coal mining and the accurate prediction of mine water inflow are prerequisites for mine safety. Taking a typical coal …
displacement. Mining is currently not a statistically significant category of development-induced displacement and resettlement (DIDR). Nevertheless, the social costs of exploitation are great, and that is ... The problem of compulsory resettlement is also a consequence of open-pit coal mining in European countries like Germany and Poland ...
Displacement of rock mass in tunnels and underground mines is considered one of the most hazardous phenomena that can cause the collapse of the structures.
A physical simulation model is constructed to study the characteristics of fault displacement evolution at Yima mining area, Henan Province, China. The geological condition at Yima mining area is complicated with high in situ stress, reverse faults and extremely thick conglomerate rock strata. In this study, the fault movement process …
This paper examines Indian-specific cases to determine the impact of mining-induced displacement and resettlement (MIDR). ... (Eds.), "Proceedings of 1st International Conferenceon Managing the Social and Environmental Consequences of Coal Mining India", New Delhi, India, November 19-21, 2007. Commodity. General. Company. …
In a mine case study, Shen et al. [5] used a so-called 'integrated roof monitoring system' to investigated a roadway roof fall during mining-induced failure. The monitoring system, consisting of extensometers, stress meters and a seismic monitoring system, was used for monitoring the displacement, stress changes, and seismic …
A method to monitor the coal mine roadway roof separation by FBG displacement sensors is reported. This method has been applied in Zhu Xian-zhuang coal mine (a Chinese coal mine in Anhui). Based on the roof separation monitoring by the sensors, the variation trends of the roof separation displacement during mining is …
To investigate the mechanism of fault slips in coal mines, a biaxial shear experiment was carried out under unloading condition based on the fault F16 in Yima city, China. Two rock samples were used in the experiment and each sample was composed of two triangular sandstone blocks which were put together to simulate the fault. One rock …
Request PDF | Experimental study on displacement of CH 4 by liquid CO 2 in coal seam | Mine gas drainage is an important work in high gas outburst coal mines. How to improve the gas drainage ...
The underground reservoir of the Wulanmulun coal mine was examined in this study using theoretical analysis and similar simulation experiment, and the groove depth was optimized using FLAC3D based on the results obtained. ... Figures 11 and 12 display the variation curves of the displacement of the roadway side and the coal pillar …
Coal is the primary source of energy for the production of electricity as well as other industrial purposes. Despite being one of the largest coal producers in the world, India still imports coal to meet domestic demand. Coal is mainly extracted from opencast mines with high mechanization and deeper depths to meet the required coal demand.
Drawing on ethnographic fieldwork in a village in eastern India's coal-bearing tracts, this paper explores the different ways in which two groups of residents – local, landed s and migrant, landless ones – perceive and respond to the possibility of future mining-induced displacement.
Geological sequestration of carbon dioxide (CO 2) is one of the key methods to attain peak CO 2 emissions and carbon neutrality in unworkable or abandoned coal seams. To study displacement characteristics and effect of geological sequestration of CO 2 in water-saturated coal seams, the pore structure of coal samples from three different …
pit coal mining in European countries like Germany and Poland. Although mining-induced displacement is a global phenomenon, problems experienced by the displacees in many parts of the world differ greatly. The largest portion of the displacement is caused by open-pit mining (associated with the extraction of gold, copper, lignite, and diamonds).
Roof stability is heavily influenced by the time-dependent properties of the rock mass above the workings. This study uses rock displacement testing to examine …
With the increasing coal mining depth, dynamic disasters are occurring more frequently in coal mines. The loading rate has a close relation to the mechanical properties, behaviors and failure mechanisms of both coal and rock. In order to examine the influence of loading rates on tensile properties, deformation characteristics, failure …
Rock displacement testing is a widely used method to assess coal mine roofs' stability by measuring the pressure a roof can withstand over time3,6–8. This testing provides …
Roof displacement is a reliable indicator to examine stability conditions of tunnels or roadways, which are driven in underground coal mines. In this research, a neuro-fuzzy-based method, namely hierarchical local model tree (HiLoMoT), was employed to predict the roof displacements and consequently indicate the unstable zones in a …
Semantic Scholar extracted view of "Displacement Due to Mining in Jharkhand" by M. Areeparampil. ... Geophysical investigations for stability and safety mitigation of regional crude-oil pipeline near abandoned coal mines. B. Butchibabu P. K. Khan P. Jha. Environmental Science, Engineering.
