The shallow strata structure and soil water content in a coal mining subsidence area detected by GPR and borehole data

2020 ◽  
Vol 79 (22) ◽  
Author(s):  
Zhiyuan Wu ◽  
Tianxiang Xia ◽  
Junli Nie ◽  
Fan Cui
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Coal Mining ◽  
Mining Subsidence ◽  
Borehole Data ◽  
Subsidence Area ◽  
Coal Mining Subsidence ◽  
Shallow Strata

Coal Mining Influences on the Soil Water Content in Mao Wusu Sand Land

2013 ◽  
Vol 361-363 ◽  
pp. 68-74
Author(s):  
Rui Ping Zhou ◽  
Yan Ru Wu
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Coal Mining ◽  
Strong Influence ◽  
Experimental Period ◽  
Control Area ◽  
Subsidence Area ◽  
Sand Land ◽  
The Relationship

The soil water content in a region is closely related to plant growth. The coal Mining has a strong influence on the soil in Mao Wusu sand land. This study investigated the relationship between the soil water content and the collapse Degree Land of Coal Mining. Samples of the collapse land were analyzed for the soil water content in different slope locations in summer. The soil moisture changes are basically same in different slope location regardless whether it is in subsidence area or not when no rain occurs within two weeks in summer, and soil water content is relatively low in slope button, and a relative high in the other slope location, the water content in the control area and subsidence area follows from high to low by: 0a> 3a> 2a> 1a. The soil water content of the control region each layer is significantly higher than that of the subsidence region.The soil volumetric water content of the sample land on both sides of the subsidence cracks is less than that in the control land in the experimental period. The water content of relative subsidence side is higher than in the exposed side, and the water content is shown the law of the control area>light >light-exposed>medium>medium-exposed>heavy>heavy-exposed.

Research and Application on Technology of Flood-Storage and Flood-Detention of Coal Mining Subsidence Area of Suzhou Coal Mine

2014 ◽  
Vol 641-642 ◽  
pp. 80-83
Author(s):  
Jia Zhong Zheng ◽  
Mei Zhu ◽  
Zheng Long Wang
Keyword(s):  
Coal Mining ◽  
Dynamic Change ◽  
Storage Conditions ◽  
Flood Routing ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
The Status ◽  
Suzhou City ◽  
Change Trend ◽  
Coal Mining Subsidence

The artical is based on the investigation of the basis of the status quo of Zhuxianzhuang and Luling coal mining subsidence area in Anhui province Suzhou city(hereinafter referred to as the "Zhu Lu subsidence area"), a preliminary analysis of the dynamic change trend of detention space in Zhu Lu subsidence area, and based on the hysteresis storage conditions of subsidence area, use the flood routing model to simulate the hysteresis effect of storage at different subsidence scenarios of different frequency flood. Finally, using the experience type channel evolution model and peak delay routing model further revealed storage effect on flood process of Zhu Lu subsidence area.

scholarly journals Characteristics of δD and δ18O of Reclaimed Mine Soil Water Profile and Its Source Water Bodies in a Coal Mining Subsidence Area with High Groundwater Level—A Case Study from the Longdong Coal Mining Subsidence Area in Jiangsu Province, China

Water ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 274
Author(s):  
Mengyu Ge ◽  
Baozhang Chen
Keyword(s):  
Soil Water ◽  
Coal Mining ◽  
Surface Waters ◽  
Meteoric Water ◽  
Mine Soil ◽  
Deep Soil ◽  
Soil Layers ◽  
Subsidence Area ◽  
Coal Mining Subsidence ◽  
Δd And Δ18o

Coal mining, as one of the key drivers of land degradation worldwide, caused land subsidence problems. In this study, we conducted experimental research to explore the reclaimed mine soil (RMS) water dynamics and its sources in relation to reclaimed land use types using stable water isotopes in the Longdong coal mining area with high groundwater level in east China. We collected water samples seven times in 2017 from all of these water bodies (precipitation, surface waters (river water and water from subsidence pits (WSP)), groundwater and soil water). Our main findings are three fold: (1) the values of slope and intercept of the local meteoric water line of Craig (LMWL) of precipitation for the study area are higher than the global meteoric water line of Craig (GMWL) because of the humid monsoon climate zoon, and the values of δD and δ18O of surface waters and soil water and groundwater deviated from LMWL to some extent with a range of 5–30%, and the D and 18O of precipitation and the surface waters have higher seasonal variation than groundwater; (2) the values of δD and δ18O of RMS for the whole soil profile (0–100 cm) are lower than that of precipitation and have obvious seasonal variations and great fluctuation in the topsoil (0–30/40 cm) and decrease at depth (30/40–70 cm) and stable in deep soil layers (below 70 cm deep); (3) the RMS with forest and crop enhanced water infiltration capacity and soil water mixing strength compared with the waste RMS, so establishment of forest and crops should be encouraged in the RMS; (4) the main sources of topsoil (0–30 cm for crop and 0–40 cm for forest) of RMS are precipitation through infiltration, the main supply for deep soil water (below 70 cm deep) is groundwater, and the soil water for the middle deep soil layers (30/40–70 cm) is mainly from mixing sources of precipitation, groundwater, and river water through pant root water absorbing and groundwater upshifting.

Geological Environmental Impact Assessment of Mining Subsidence Area Based on Multilayer Fuzzy Synthetic Evaluation

2014 ◽  
Vol 1010-1012 ◽  
pp. 254-258 ◽  
Author(s):  
Jia Xing Xu ◽  
Hua Zhao ◽  
Gang Li
Keyword(s):  
Coal Mining ◽  
Land Reclamation ◽  
Mining Subsidence ◽  
Geological Environment ◽  
Fuzzy Synthetic Evaluation ◽  
Subsidence Area ◽  
Coal Mining Subsidence ◽  
Landscape Ecological ◽  
Different Levels ◽  
Synthetic Evaluation

Multilayer fuzzy synthetic evaluation is an effective method of the qualitative analysis into the quantitative analysis, and can reflect the different levels of objective things factors, avoiding the difficult to assign weights due to excessive factors. Geological environment of Jiawang coal mining subsidence area in Xuzhou was evaluated with an indices system based on multilayer fuzzy synthetic evaluation. Through evaluation, the serious damage region of geological mining of Jiawang mining subsidence area is 1918.966 hm2, and the more serious damage region is 2524.088 hm2, and the less affected area is 1366.971 hm2. The results showed that the geological environment of Jiawang mining subsidence damage is more serious. The farmland was destroyed seriously, and water due to land collapse was quite serious, which was difficult to land reclamation. It is believed that this work may provide scientific reference for land reclamation and landscape ecological restoration of coal mining subsidence area.

scholarly journals Characters of hydrochemistry and their influenced factors of different waters in the Linhuan coal mining subsidence area of Huaibei City

2017 ◽  
Vol 29 (5) ◽  
pp. 1158-1167 ◽  
Author(s):  
KONG Lingjian ◽  
◽  
JIANG Chunlu ◽  
ZHENG Liugen ◽  
CHENG Hua ◽  
...  
Keyword(s):  
Coal Mining ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
Coal Mining Subsidence
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