JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2011, Vol. 41 ›› Issue (3): 72-77.

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Research on the temperature response feature of a rock mass
around a  water-bearing structure and affecting factors

ZHANG Qingsong, GAO Yang, LI Shucai, YUAN Xiaoshuai, ZHAO Jiangang, LI Zhipeng   

  1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China
  • Received:2011-03-28 Online:2011-06-16 Published:2011-03-28

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Abstract:

A three-dimensional numerical model was built for the rock temperature method for a  water forecast. The thermal diffusion effect was simulated with the help of the finite difference software FLAC3D. The temperature response feature of a rock mass was analyzed and the distance affected by the water temperature was concluded to be around 25m. The impact of the roadway excavation process, the thermal conductivity of rock, the location of monitoring points, the buried depth of the monitoring points and the roadway environment temperature were also qualitatively studied. The best monitoring depth was  about 4~6m, and the location of a waterbearing structure was determined by comparing the slope of temperature curves at different positions. Finnally, the temperature fitting curve of a rock mass was found. It provides the theoretical foundation for  forecasting water with rock mass temperature.

Key words: mining engineering, rock temperature method, water forecast, numeral simulation

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