Research Status of Comprehensive Treatment of Open-Pit Abandoned Mine Geological Environment

2020 ◽  
Vol 08 (03) ◽  
pp. 265-270
Author(s):  
博文 帅
Keyword(s):  
Abandoned Mine ◽  
Open Pit ◽  
Comprehensive Treatment ◽  
Geological Environment ◽  
Research Status

On Management Principles of Abandoned Mine Geological Environment

2013 ◽  
Vol 726-731 ◽  
pp. 1704-1709
Author(s):  
Shou Yi Xue
Keyword(s):  
Abandoned Mine ◽  
Comprehensive Treatment ◽  
Geological Environment ◽  
Basic Principles ◽  
Dynamic Design ◽  
Local Conditions ◽  
Environment Management ◽  
Design Scheme ◽  
The Right ◽  
Theoretical Results

Based on a large number of mine geological environment treatment project experience and theoretical results, the basic principles of mine geological environment management were generalized, they are overall planning, implementation step by step; adjust measures to local conditions, assisting nature; ecological priority, comprehensive treatment; ensuring safety, doing according to its abilities; minimum intervention, landscape harmonious; feasibility in technology, rationality in economy; dynamic design, timely adjust. These principles will help to reasonably determine the treatment targets, and for the right design scheme.

Research and Development of the Mine Geological Environment Evaluation System

2011 ◽  
Vol 268-270 ◽  
pp. 1354-1359 ◽  
Author(s):  
Wei Wei Jia ◽  
Guang Dao Bao ◽  
Xue Wei Wu ◽  
Sheng Wei Jiang ◽  
Chang Zhai
Keyword(s):  
Index System ◽  
Evaluation System ◽  
Development Process ◽  
System Development ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Geological Environment ◽  
Gis Technology ◽  
Research Status ◽  
The Core

This paper studied the development process of evaluation and research status of the GIS technology in the geological environment in the development process of evaluation and research status. Determined the evaluation index system and the core algorithm by comparing the current geological environment evaluation of several methods used to determine the evaluation index system and the core algorithm, and established a mine geological environment evaluation system using ArcGIS Engine. Focuses on the geological environment indicators of the establishment and use of AHP to determine factor weights, introduced the system development the overall design concept, the system's basic composition and structure, the system of professional modules, system function, and use experimental regional data to test the system.

Fuzzy Evaluation of the Impact of the Open-Pit Limestone Mining on Geological Environment

2014 ◽  
Vol 1073-1076 ◽  
pp. 454-459
Author(s):  
Hao Ran Liu ◽  
Shao Qing Chen ◽  
Sen Li
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment System ◽  
Evaluation Index System ◽  
Open Pit ◽  
Fuzzy Evaluation ◽  
Geological Environment ◽  
Evaluation Standard ◽  
The Impact

Through the current situation survey of geological environmental disasters caused by limestone mining in Chongqing and combined with the principles of establishing evaluation index system and industry experts’ advices, we get the geological environmental impact assessment system of open-pit limestone mining which is consist of 7 dimensions and 25 indexes. Using analytic hierarchy process (AHP) to assign the weight of 25 indexes and based on membership functions of trapezoidal distribution to establish evaluation standard, the fuzzy comprehensive evaluation model is constructed. According to the principle of maximum membership degree, we get the influence degree of the geological environmental system affected by the open-pit limestone mining in Chongqing. This model makes the impact on geological environment of limestone mining quantitative and plays a certain guiding role in the local environmental protection strategy formulation and geological disaster prevention.

Study on the Problems and Control Measures of Geological Environment in the Qianbaoling Mining Area

2013 ◽  
Vol 864-867 ◽  
pp. 2683-2687 ◽  
Author(s):  
Xiao Lu Xu ◽  
Nai Qi Shen ◽  
Guang Yang ◽  
Zong Xi Xiong ◽  
Xiao Rui Qin
Keyword(s):  
Iron Ore ◽  
Mining Area ◽  
Economic Benefits ◽  
Control Measures ◽  
Comprehensive Treatment ◽  
Geological Environment ◽  
Environmental Treatment ◽  
Biological Methods ◽  
Ecological Landscape ◽  
And Control

Iron ore resources are rich in Qianbaoling region. Long-term iron ore mining has brought huge economic benefits to the region, but also generated a lot of geological environment problems including destruction of land and water resources, hidden trouble of geological disaster and destruction of ecological landscape. This paper analyzes the characteristics and harms of the geological environment problems in the mining area, and presents a comprehensive treatment program, where engineering methods such as cutting slopes, building retaining walls, building drains and leveling land are combined with biological methods like planting grass and trees. Through the implementation of mining environmental treatment project, the hazards caused by mine geological environment problems will be minimized, the ecological environment will be improved gradually, and the local agricultural economics will be developed.

scholarly journals Arrangement of Multistory Underground Parking Garages in Complex Engineering and Geological Environment

2020 ◽  
Vol 5 (5) ◽  
pp. 897-912
Author(s):  
Olga Vladimirovna Trushko ◽  
Vladimir Leonidovich Trushko ◽  
Petr Alexeevich Demenkov
Keyword(s):  
Retaining Wall ◽  
Open Pit ◽  
Geological Environment ◽  
Solid Supports ◽  
Adjacent Building ◽  
Parking Lot ◽  
Soil Settlement ◽  
Parking Garages ◽  
Complex Engineering ◽  
Soil Excavation

This article discusses possible variants of underground parking lot in complex engineering and geological environment of St Petersburg, namely: soil excavation in open pit and excavation with solid supports. These methods were analyzed with regard to reasonability for preset construction conditions. A series of predictions were performed using Plaxis 2D software, two variants were described in this article: excavation with the bottom elevation of +0.560 m and excavation with the bottom elevation of -2,500 m and adjacent building (at the distance of 2.5 m). The formulated problems were solved using 2D models. The model was based on the Mohr–Coulomb theory which facilitated estimation of geotechnical environment in the vicinity of the construction. Predictions of retaining wall according to the two considered variants have demonstrated that maximum soil settlement near the excavation is 20 mm and the maximum additional settlement of building at the distance of 2 m from the excavation is 30 mm, which in both cases corresponds to predetermined specifications.

Impact of Open-Pit Mining on the Geological Environment

2020 ◽  
Author(s):  
L.A. Storozhenko ◽  
I.G. Petrova ◽  
Y.V. Klokova ◽  
I.O. Lymar
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Geological Environment

scholarly journals Integrated geological-geophysical and UAS proximal sensing approach to the study of ground water movement between two open-pit pools in an abandoned mine area.

2021 ◽  
Author(s):  
Stefano Cara ◽  
Silvana Fais ◽  
Paola Ligas ◽  
Carlo Matzuzzi ◽  
Federica Podda
Keyword(s):  
High Resolution ◽  
Abandoned Mine ◽  
Open Pit ◽  
Linear Filter ◽  
Proximal Sensing ◽  
Ground Sample ◽  
Mine Area ◽  
Basement Rocks ◽  
Groundwater Circulation ◽  
2D Resistivity

<p>The aim of this work is to combine geological/geophysical techniques with proximal sensing based on Unmanned Aerial System (UAS) for advanced 3D modeling, in a possible post-mining landscape recovery of abandoned mine sites. In this framework a test area in central Sardinia (Italy) was studied. In this area, several talc-chlorite-feldspar bodies have long been mined in open pit operation greatly modifying the original landscape. At present the rearrangement of the mining site and particularly the open pit works that have been occupied by newly formed pools filled with waters from aquifers can be considered an overall project of landscape recovery. The project team have focused on developing a UAS proximal sensing technique for the acquisition of high-definition digital images and by means of photogrammetric algorithms (CMPMVS) in order to generate a dense 3D point cloud and successively high-resolution digital models (DSM and DTM). The proximal sensing survey was performed at different flight heights to obtain a Ground Sample Distance (GSD) according to the scale of investigation. The availability of a detailed topographic dataset is fundamental to characterize a complex morphology and is a basic support for integration with the data resulting from the geological-geophysical survey conducted in the abandoned mine area. Based on this a geophysical investigation by the electromagnetic very low frequency (VLF) method was carefully planned and carried out to localize potential structural discontinuities that can guide groundwater circulation between the newly formed pools encased in the crystalline basement rocks. The VLF method has a high-resolution power in detecting lateral variations in the electrical properties (i.e., conductivity) of the rock formations related to the presence of underground geological structures. To facilitate the interpretation of the VLF-EM anomalies the Karous–Hjelt linear filter was applied on the EM data. Thanks to the application of this filtering procedure, it was possible to obtain the current density pseudosections along the profiles crossing the basement rocks. The pseudosections provide a representation of the various current concentrations in depth and hence the spatial arrangement of subsurface geological features such as faults, fracture zones and geological contacts. The VLF data were also quantitatively interpreted with a 2D code for the VLF data inversion. Both in the pseudosections and in the 2D resistivity models two main conductive zones are present. These conductive zones could be the signature of a preferential path of the water circulation between the newly formed pools encased in the basement rocks. The application of the integrated geological-geophysical and UAV photogrammetric survey approach proved successful in characterizing the basement rocks of the investigated area and allowed to localize structural discontinuities that can guide the groundwater circulation. The results of this study can represent the indispensable knowledge base to contribute to constraining the hydrogeology numerical model needed for the mine site rehabilitation and reasonable planning of the possible post-mining landscape recovery. The methodological sequence used in this study can be reproduced in other similar abandoned mining sites thus giving an important contribution to an efficient and cost-effective performance of the restoration project.</p>

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