NDLI: The effect of the metal deposits exploitation on the safe operation of water conservancy project

Content Provider	Springer Nature Link
Author	Wu, Xiong Fu, Rui Zhi Zhang, Lian Jie Mu, Wen Ping Qian, Cheng Wang, Zhuo Ran
Copyright Year	2016
Abstract	Ground subsidence which is caused by metal mining is generally forecast using research results and experiences of coal mining for reference at present. This paper considers that predictive study on the ground subsidence, which is induced by metal mining, must use suitable calculation methods under some specific circumstances. A comprehensive research method combining numerical simulation and engineering analogy is the most reasonable approach to predict ground subsidence induced by mining. The author takes practical engineering as example, firstly, a three-dimensional geological model was established on the basis of surveying and mapping for the study area in large scale using the three-dimensional laser scanner. Secondly, the rock fragment strength was tested with the Schmidt hammer and the rock point load strength instrument; at the same time, a detailed statistical analysis of joints and fractures of underground rock were made, and strength indexes of surrounding rock were determined on the basis of rock mass classification according to the rock mass rating (RMR) classification system. Finally, the surface movement induced by mining and the seepage field of the Boziliang Sub-dam were simulated using fast lagrangian analysis of continua in three dimensions (FLAC-3D) and Visual Modflow, respectively. The results of simulation indicate that it would not affect the safe operation of the Boziliang Sub-dam as long as the exploitation in the Madaozi iron mine conformed with the design requirements and was accompanied by monitoring work and the worked-out areas being filled in time.
Starting Page	1
Ending Page	16
Page Count	16
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	7
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-03-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Exploitation of iron mine Ground subsidence Safe operation Numerical calculation Seepage field Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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