XU Longjun1*, WANG Xingmin1,2, and XIAN Xuefu1
(1 State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;
2 College of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, China)
Abstract Effects of temperature and pressure differences on water seepage in breccia were investigated by using the physicochemical seepage instrument. The results show that the relationship of flow and pressure differences can be expressed by a linear equation, and the seepage coefficient is linearly correlated with temperature. The relationship between seepageflow and temperature could be described with the linear equation. The constant and temperature seepage coefficient showed a linear relation with pressure. Binary quantitative equation for the seepageflow, temperature and pressure was obtained, and explained with experimental data and theoretical analysis.
Key words water seepage; pressure difference; temperature; breccia
* Corresponding author, E-mail: xulj@cqu.edu.cn
CHINESE JOURNAL OF GEOCHEMISTRY Vol. 31, No. 3, 2012, page 260-263
© Science Press and Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2012
