Physical Simulation of High-Pressure Water Inrush Through the Floor of a Deep Mine

Sun, Wenbin; Zhang, Shichuan; Guo, Weijia; Liu, Weitao
November 2017
Mine Water & the Environment;Nov2017, Vol. 36 Issue 4, p542
Academic Journal
When mining at great depth, high-pressure karstic water inrush can pose a serious threat. We used physical simulations to investigate channel inception, evolution, and catastrophic flooding. Using newly developed coupled solid-liquid materials and physical simulations of high-pressure water intrusion, a laboratory test was carried out that reproduced the spatial and temporal characteristics of channel formation and crack generation, extension, connection, and failure. Floor failure features caused by the effects of mining and confined water were analyzed, and the formation and evolution of catastrophic flooding were investigated. The results showed that the evolution of a water-inrush channel can be divided into three stages: floor crack development, water channel initiation, and channel evolution. Extrapolating the simulation results to a real-world example, a floor fracture formed when the working face advanced to 45 m, and a water-inrush channel formed when the push distance of the working surface was about 70 m. Thereafter, the point of water eruption widened, water flow increased, and the main cracks in the floor rock mass showed obvious changes. The crack in the lower interface was angled 56° upward, and finally a water eruption point formed in the middle of the mined cavity. These results provide theoretical support for the prediction of water inrush into deep coal mines.


Related Articles

  • Evaluation of trace element contents in groundwater in Abakaliki metropolis and around the abandoned mine sites in the southern part, Southeastern Nigeria. Okogbue, Celestine O.; Ukpai, Stephen N. // Environmental Earth Sciences;Dec2013, Vol. 70 Issue 7, p3351 

    This study aimed at determining the concentrations of trace elements in the groundwater of Abakaliki urban and some abandoned mine sites in the Southern part. Sixteen trace elements were analyzed for each of the twenty water samples collected. Laboratory results showed that the concentration of...

  • Impact of sewage and mining activities on distribution of heavy metals in the water-soil-vegetation system. Semhi, K.; Al Abri, R.; Al Khanbashi, S. // International Journal of Environmental Science & Technology (IJE;Jul2014, Vol. 11 Issue 5, p1285 

    Several samples of groundwater and soils and plants have been collected from Sohar (Batina region, NE Oman), which is affected by various activities such as mining, agriculture, and sewage. To characterize quality of groundwater, As and Cu concentrations have been investigated in waters...

  • Reader Challenge: Is Afghan Mineral Find a Game-Changer? Wellen, Russ // Foreign Policy in Focus;6/15/2010, p4 

    The article reports on the discovery by the U.S. of mineral deposits in Afghanistan that costs approximately one trillion U.S. dollars.

  • Tunisia.  // Africa Report;Mar/Apr92, Vol. 37 Issue 2, p12 

    Reports that Tunisia's first privately owned and managed mining venture, being developed by Societe Miniere de Bougrine, has received backing from the World Bank's International Finance Corporation in February. Amount of money that the corporation will provide; Expected production of the mine;...

  • United States: Arizona.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p19 

    Reports on mining developments in Arizona. Includes AZCO Mining Inc.'s receipt of all local, state and federal environmental permits for its Sanchez copper project; Mariah International Inc.'s announcement that the Humbug mine has begun production; Fine imposed on a contractor of Magma Copper...

  • United States: Idaho.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p19 

    Reports on mining developments in Idaho. Includes Consolidated Silver Corp.'s reported net loss for 1993; New Bunker Hill Mining Co.'s installation of a 100 st/d pilot mill; Coeur d'Alene Mines Corp.'s record first-half 1994 gold production.

  • United States: Nevada.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p23 

    Reports on mining developments in Nevada. Includes Arimetco International Inc.'s first-half profit; Kinross Gold Corp.'s surface mineral reserve at its Candelaria mine; Red Rock Mining Corp.'s joint venture with Kennecott Exploration Co.

  • Newsbriefs.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p25 

    Reports on mining developments all over the world. Includes VME and Hitachi's formation of a joint venture in the rigid hauler business; Kumera Corp. of Finland to supply anode furnaces and granulation excavators for Kennecott's smelter modernization; Ausmelt Ltd.'s collaborative agreement with...

  • Kootenay miners get new services.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p16NN 

    Reports that the Government Agent's office in Kootenay, British Columbia, will now issue mineral and placer claims.

  • Morton Salt completes 2M safe manhours.  // Engineering & Mining Journal (00958948);Nov94, Vol. 195 Issue 11, p16VV 

    Reports that the Morton Salt Weeks Island, Louisiana Mine and Mill has completed 2M safe manhours without a lost-time injury.


Read the Article


Sign out of this library

Other Topics