Integrated approach to coal mine washery waste disposal and land reclamation (geotechnical engineering aspects)

1995 ◽  
Author(s):  
Velauthapillai Kuganathan
Keyword(s):  
Waste Disposal ◽  
Coal Mine ◽  
Land Reclamation ◽  
Geotechnical Engineering ◽  
Integrated Approach

scholarly journals Substantiation of Safe Conditions During Undermining of Hydraulic Waste Disposal

2018 ◽  
Vol 41 ◽  
pp. 01007
Author(s):  
Yuriy Kutepov ◽  
Aleksandr Mironov ◽  
Maksim Sablin ◽  
Elena Borger
Keyword(s):  
Rock Mass ◽  
Waste Disposal ◽  
Coal Mine ◽  
Water Body ◽  
Water Inflow ◽  
Open Pit ◽  
Coal Seams ◽  
Geological Conditions ◽  
Mine Workings ◽  
Mine Dump

This article considers mining and geological conditions of the site “Blagodatny” of the mine named after A.D. Ruban located underneaththe old open pit coal mine and the hydraulic-mine dump. The potentially dangerous zones in the undermined rock mass have been identified based onthe conditions of formation of water inflow into mine workings. Safe depthof coal seams mining has been calculated depending on the type of water body – the hydraulic-mine dump.

scholarly journals A new approach to increase land reclamation rate in coal mining subsidence area: A case study of Guqiao Coal Mine, China

2021 ◽  
Author(s):  
Gensheng LI ◽  
Jianxuan Shang ◽  
Zhenqi Hu ◽  
Dongzhu Yuan ◽  
Pengyu Li ◽  
...  
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Land Reclamation ◽  
Water Area ◽  
Land Area ◽  
Reclaimed Land ◽  
Land Protection ◽  
Mining Areas ◽  
Concurrent Mining And Reclamation ◽  
Coal Mining Subsidence

Underground coal mining will inevitably cause land ponding in high groundwater table, which will affect the land sustainable development. However, the traditional reclamation (TR) is poor in land rate. Thus, finding a suitable reclamation approach is crucial to alleviate the conflicts between coal exploitation and land protection. In this paper, taking Guqiao Coal Mine of China was seriously affected by mining-induced ponding as an example. Firstly, dynamic distribution of surface subsidence and land damage from 2007 to 2017 was revealed base on concurrent mining and reclamation (CMR). Second, the land-water layout of five reclamation schemes (no reclamation, TR, CMR I, CMR II and CMR III) were simulated. Then, and the dynamic filling elevation model and filling thickness model were constructed. Finally, the sequence of earthwork allocation was optimized. The results revealed that: 1) reclaimed land area: CMR III > CMR II > CMR I > TR > no reclamation; 2) The digging depth is directly proportional to earthwork volume and land area, and inversely proportional to water area, but with increase of digging depth, the increase in the reclaimed land area relatively slowed down; 3) CMRs had reclaimed 426.31~637.82 ha and 259.62~471.13 ha more than the no reclamation and TR respectively. Compared with the no reclamation and TR, CMRs can increase the proportion of reclaimed land by 33.77~50.52% and 20.57~37.32% respectively. The research results provide a reference to increase the reclamation rate of mining areas in the high phreatic table.

scholarly journals DETECTING THE AREA DAMAGE DUE TO COAL MINING ACTIVITIES USING LANDSAT MULTITEMPORAL (Case Study: Kutai Kartanegara, East Kalimantan)

2018 ◽  
Vol 14 (2) ◽  
pp. 151
Author(s):  
NFn Suwarsono ◽  
Nanik Suryo Haryani ◽  
Indah Prasasti ◽  
Hana Listi Fitriana ◽  
M. Priyatna ◽  
...  
Keyword(s):  
Change Detection ◽  
Coal Mining ◽  
Coal Mine ◽  
Vegetation Index ◽  
Detection Method ◽  
Land Reclamation ◽  
Environmental Damage ◽  
Mining Activities ◽  
Landsat Data ◽  
East Kalimantan

Coal is one of the most mining commodities to date, especially to supply both national and international energy needs. Coal mining activities that are not well managed will have an impact on the occurrence of environmental damage. This research tried to utilize the multitemporal Landsat data to analyze the land damage caused by coal mining activities. The research took place at several coal mine sites in East Kalimantan Province. The method developed in this research is the method of change detection. The study tried to know the land damage caused by mining activities using NDVI (Normalized Difference Vegetation Index), NDSI (Normalized Difference Soil Index), NDWI (Normalized Difference Water Index) and GEMI (Global Environment Monitoring Index) parameter based change detection method. The results showed that coal mine area along with the damage that occurred in it can be detected from multitemporal Landsat data using NDSI value-based change detection method. The area damage due to coal mining activities  can be classified into high, moderate, and low classes based on the mean and standard deviation of NDSI changes (ΔNDSI). The results of this study are expected to be used to support government efforts and mining managers in post-mining land reclamation activities.

The Landscape Future of the Coal-Mine Region -Taking Taiyuan as an Example

2012 ◽  
Vol 450-451 ◽  
pp. 1288-1292
Author(s):  
Qiong Wang ◽  
Kai Zheng ◽  
Zheng Qiao
Keyword(s):  
Ecological Restoration ◽  
Coal Mine ◽  
Urban Economics ◽  
Land Reclamation ◽  
Economic Recovery ◽  
Shanxi Province ◽  
Cultural Issues ◽  
Special Mention ◽  
Urbanized Areas ◽  
The City

This paper aims to study on the landscape future of a large number of coal-mines distributed around the border of resource-based cities in China, which have been abandoned or semi-abandoned, lacking of features, with scattered settlements separated by the industry. Taking the coal-mine region around the city of Taiyuan in Shanxi province as an example, seeing from the perspective of urban economics, landscape ecology and sociological, finding landscape transformation ways to solve the threat of industrial collapse, the suffering from social problems, the seriously polluted waste, the loss of social cultural issues and other series of problems in the region, so as to get economic recovery, land reclamation, and ecological restoration. Special mention is also given in these urbanized areas on how to increase employment, how to establish urban features and how to make a pleasant community

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