Dissertation > Excellent graduate degree dissertation topics show

Groundwater Overdraft District Jining City Land Subsidence Prediction

Author: LiZhiHua
Tutor: LvHua
School: Jinan University
Course: Hydrology and Water Resources
Keywords: Groundwater overdraft Ground subsidence Simulation Forecast
CLC: P642.26
Type: Master's thesis
Year: 2011
Downloads: 119
Quote: 0
Read: Download Dissertation


Ground subsidence refers to natural factors or human factors appear under ground elevation reduce the phenomenon. Ground subsidence is a natural disaster, it's happening has some geological factors. However, with the economic and social development, increasing the scope of ground subsidence, sedimentation rate is growing. Overall, in the process of development of land subsidence, human factors relative to natural factors contribute to a more prominent role is greater. A large amount of groundwater exploitation in urban areas, land subsidence phenomenon is more pronounced. With the continuous economic and social development, Jining City, the demand for water is increasing, due to the long over-exploitation of deep groundwater, forming a regional deep groundwater depression cone and induced land subsidence, resulting in a reduced ability to urban flood control, fissure, crack houses, city pipeline rupture, ground deformation and other road hazards. Currently, Jining City, land subsidence has developed sustainable economic and social development to limit the environmental geological problems to be solved. In-depth study of Jining City, hydrogeological and engineering geological conditions established based on a quasi-three-dimensional groundwater flow - land subsidence coupled one-dimensional numerical model of groundwater flow model to analyze the sources and sinks, and use Processing Modflow and its subpackages Interbed storage Package coupled model was solved by repeated parameter adjustment and fitting, get a reasonable hydrogeological parameters, more accurately simulate the Jining area ground subsidence. Using ground subsidence prediction model of groundwater mining conditions were unchanged and groundwater exploitation has slowed in both cases in 2020 land subsidence trends. Prediction results showed that: ① In 2005 groundwater levels continued to 2020, forecast 2020 land subsidence situation: a sharp decline of deep groundwater funnel center, also increasing the amount of land subsidence, ground subsidence funnel 220mm centers decreased from 2005 to 480mm. ② full use of foreign sources in the South and other works under the conditions of exploitation of groundwater exploitation reduced 2005 level of 90% of the cases, changes in land subsidence prediction in 2020: deep groundwater level decline eased, ground subsidence funnel Center settlement of 220mm from 2005 down to 296mm. From the predicted results, for the special geological conditions of Jining City, with the decrease in exploitation, land subsidence of the grim situation greatly reduce sedimentation rate slowed, reducing the amount of the settlement, the water table is restored, possibly even a small amount of ground subsidence rebound phenomenon. Finally, from the optimization of groundwater extraction program to strengthen groundwater use and management perspective presented Jining ground subsidence control countermeasures for the realization of Jining City, the sustainable use of groundwater resources provide important basic information and scientific evidence.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  3. Study on Springback of High-Strength Steel Stamping,TG386
  4. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  5. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  6. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  7. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  8. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  9. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  10. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  11. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  12. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  13. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  14. Numerical Simulation of Biomass Direct Reburning,TK16
  15. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  16. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  17. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  18. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  19. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  20. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  21. Power System Dynamic Voltage Stability Simulation Study Based on Precise Integration Method,TM712

CLC: > Astronomy,Earth Sciences > Geology > Hydrogeology and Engineering Geology > Engineering Geology > The geological and engineering geological > Land subsidence
© 2012 www.DissertationTopic.Net  Mobile