Results 81 to 90 of about 7,621 (303)
Predicting Surface Subsidence in Northern Huainan Based on a Hybrid LSTM–Transformer Model
Applied SciencesAs one of the world’s primary energy sources, coal has driven economic development but has also led to severe surface subsidence. Currently, many regions around the world face significant ground deformation risks due to ongoing or legacy mining ...
Jia Xu +4 more
doaj +1 more source
Interaction effects due to subsidence in multiple seam mining
, 1983 The Appalachian coal fields contain many contiguously placed seams of coal. Mining in these seams has been active over such an extended period of time that considerable knowledge has been gained in the area of multiple seam mining.
Webster, Stephen Leroy
core
Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N =
Gustavo P. Zago +2 more
wiley +1 more source
On numerical modeling of subsidence induced by mining
, 2001 The paper contains a new approach to calculate subsidence induced by mining. Its essence consists in combining reliable empirical data with rigorous accounting for compatibility conditions in 3D multi-layered media.
Al Heib, Marwan +2 more
core +1 more source
Prediction and analysis of mining subsidence in Longdong Coal Mine
Gong-kuang zidonghua, 2013 In order to predict and analyze mining subsidence in Longdong Coal Mine, prediction model of main cross section mining subsidence was established by use of probability integration method, and distribution law of surface subsidence deformation of main ...
XUE Ming-ke, WANG Yu-song, WANG Ju
doaj +1 more source
Trait of subsidence under high rate of coal extraction by longwall mining: some inferences
, 2021 Transformation in surface topography is a common phenomenon caused due to underground mining. With a view to focus outward, underground mining at a depth of 410 m although earlier considered as mothball is indispensable as on date to meet the production ...
Verma, Aniket +4 more
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Analysis of Mining-Induced Delayed Surface Subsidence
, 2021 The topic of residual subsidence is important in Europe as it defines possible surface deformation for closed mine areas. It has to be determined because of potential financial claims and damages of sensitive objects such as satellite dishes, precision ...
Janusz Rusek +6 more
core +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.The product profile of enzymatically hydrolyzed PET can be modified by medium engineering and thereby adapted to a desired product. TPA, MHET or BHET can be forced as the predominant product using a basic pH (blue), 25 % ethylene glycol (EG) and IsPETasewt (green) or ≥25 % EG and LCCICCG (pink), respectively.
Tobias Heinks +8 more
wiley +1 more source
A Method for Predicting the Surface Subsidence Duration and the Maximum Subsidence Velocity
LandThe surface subsidence duration and the maximum subsidence velocity are critical indicators to evaluate the stability and severity of surface damage.
Yanjun Zhang +5 more
doaj +1 more source
Ground Subsidence Evolution from 1000 m Deep Mining: A Case Study in Fengfeng Mining Area
, 2021 The mining of coal resources in eastern China has entered the stage of deep mining, and many mines have reached the depth of 1000 meters. Different from shallow and moderate depth mining, the temporal and spatial evolution regulation of surface movement ...
Yueguan Yan +5 more
core +1 more source