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Numerical simulation of geothermal fields Kunming Ⅱ block section of solute transport in underground water system

Author: WangYue
Tutor: XueChuanDong
School: Kunming University of Science and Technology
Course: Geological Engineering
Keywords: the solute transporting numerical simulation GMS the geothermal groundwater systems theⅡgeothermal groundwater block of Kunming geothermal field
CLC: P314
Type: Master's thesis
Year: 2009
Downloads: 108
Quote: 0
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Abstract


In recent years, with the development of socio-economics and the tourism industry in particular, the geothermal groundwater demand in Kunming geothermal groundwater field increases rapidly. Due to the excessive exploitation of underground water, a wide range of water level continued to decline and groundwater pollution have been produced in the mining areas.So, based on the data analysising and field investigation of the hydrogeological conditions of the geothermal groundwater system in Kunming geothermal groundwater field, using GMS software, the solute transporting numerical simulation of the II geothermal groundwater block is carried out. The results is list as follows.1、Collected in accordance with the II geothermal groundwater block groundwater monitoring data, and further deepened the Kunming geothermal well underground hot water hydrogeological conditions of the establishment of a simulation of underground hot water gradually from south to north of the changes in movement law.2、The II geothermal groundwater block of Kunming geothermal field study area of the main groundwater for artificial excretion, mainly for the upper recharge groundwater supplies along the vertical fault zone.3、Through the collation of information and using GMS, establish the concept simulation of solute transporting three-dimensional model and numerical simulation models of the II geothermal groundwater block4、Using the indirect method of artificial Scheduling, and part of the calendar year head hole detection and Cl-, NH4+ and other ion concentrations measured values are compared with simulated values in order to verify the completion of the identification model. After a bit over the years on some wells (1990-1995) simulated and measured contrast values, as well as the 1994 and 1995, groundwater flowfield simulation and comparison of the measured flow field, with good match, selected Cl-NH4+, the groundwater solute transporting simulation, the boreholes of some years (1990-1998) ion concentration of simulated and measured contrast values, as well as the 1995 and 2000 Cl-, NH4+ concentration of the measured value and simulated value of contrast, indicating the determination to build a simulation model of the hydrogeological parameters can be used to reflect the actual hydrogeological conditions.5、Using the model to forecast the concentration changing of Cl-, NH4+, in 2010 access to its concentration simulated contour map are reflected in the current mining conditions, and the solute field of theⅡgeothermal groundwater block changes largely.

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CLC: > Astronomy,Earth Sciences > Geophysics > Earth ( rock circles ) physics ( geophysics ) > Geothermics
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