| Is located in the Northwest of Shandong in Jinan City of alluvial plains and low mountains and junction in South Hills area, South of Mount Tai, the Yellow River to the North and South than in the North, hot and wet in the summer, cold and dry in winter, has a typical temperate Continental monsoon climate Features. Jinan City distribution of prestigious baotu spring, heihu Quan, five Longtan, Pearl spring four Springs, the top ten spring,700 more than a natural spring, enjoy the " 72 famous springs " of the name, known as the unique natural Museum of karst spring.2010 year in order "the first spring" baotu spring as a representative of Jinan spring was included in the China National natural and cultural heritage preparatory list.With the acceleration of Jinan City's construction and development, and increasing demand for water resources, long-term over-exploitation and unreasonable exploitation caused a lowering of groundwater in Jinan, Springs drying up:spring 1972 First stop, often occur during low flow,1999-2001 Or even continuous flow 932 Days affected the city's image to a certain extent, restrict the socio-economic development. Spring waters stop attracted great attention of the Jinan municipal party Committee Municipal Government since 1983 years, Springs became a focus of Government every year. For reproducing Jinan Springs spewing, restoring and improving ecological environment, Jinan City from 2001 year 9 month a large number of references in Yellow River water, turn off the water supply in the urban district and parts of West suburb water plant and industrial self-provided well within the second ring road, in the past two years, is implementing a recharge source and spongy construction of urban pilot projects. Keep water spewing, reasonable, effective, and sustainable exploitation and utilization of groundwater resources, control of urban environmental problems caused by overexploitation of groundwater resources, building eco-livable, sustainable development of the urban environment has become a consensus of the community in Jinan.Cambrian is widely distributed in southern Jinan mountain area- Ordovician Department limestone, has development good of limestone cave, and dissolved hole, and dissolved gap, and dissolution pipeline, for groundwater of store shipped moved provides has huge of space and channel; and urban of baotu spring Springs domain aquifer has larger storage water space and strong of adjustable storage capacity, this huge adjustable storage capacity and unique of hydrological geological conditions, conducive to using surface water for artificial adjustable storage fill source. From the perspective of water table depth, Piedmont water deep and natural infiltration, near the city of groundwater pressure is not conducive to natural infiltration; from the aquifer structure, flat stratigraphic occurrence, but also North-dipping Monocline, aquifer thickness of 30-60M among the best. Jinan City, which is implementation of the recharge source, sponge favorable hydrogeological conditions of city building. As a student, I was privileged to attend a engineering survey and analysis, and karst groundwater in Jinan as a study, conducted an in-depth study and exploration.80 Since the age, especially with the application and popularization of computer technology, technology has been rapid development of numerical model of groundwater system for studying groundwater movement and one of the main instruments of quantitative evaluation of groundwater resources, gradually replaced the traditional mathematical simulation techniques. Numerical model can reflected groundwater system of nature features, according to existing of groundwater resources status and can for utilization of groundwater resources volume, in ensure not damage natural ecological environment and the not occurred cannot cure of flood conditions Xia, in reached both can meet Springs continued spewing and can meet City economic construction and public life of needs target Xia, can maximize to mining and the using groundwater resources, basic achieved scientific management groundwater resources of established target.Paper by research of Jinan rock dissolved district groundwater numerical model is combined Jinan City general development planning, for currently city groundwater resources utilization improper, series problem, using numerical die principle established science flexible of groundwater resources management model, to get a reasonable of, and can reflect research district underground aquifer system characteristics of numerical simulation model and through run the model, application signal and system analysis, and response matrix method,, proposed has groundwater resources development using General optimization programme. The model through on work district past of based geological, and hydrological geological, and engineering geological, and insurance springs water, information for collection, and finishing and integrated research, combined in recent years long measuring information, through field survey, field validation, full consider to long filial piety rock dissolved system, and baotu spring Springs domain, and baiquan Springs domain of formed and development are in a compared full of groundwater system within, in more long period within, has relative fixed of supplies items and excretion items, so will its as a organic system, from overall starting, combination, used computer, and Mathematical models and optimization techniques, and other means to establish a scientific and rational, reflecting research area numerical simulation model of aquifer system. Model used GMS (Groundwater Modeling System) groundwater simulation package, determine has elevation, and simulation period and hydrological geological parameter,, established has three dimensional visual of model and research district diving aquifer penetration coefficient partition figure, and research district diving aquifer water degrees partition figure, and research District Rock dissolved water aquifer penetration coefficient partition figure and research District Rock dissolved water aquifer storage water rate partition figure, and using try estimated-Correction method for the identification and validation of the model. Numerical model for computer simulation of groundwater level observation of groundwater level changes during the process, and through the analysis of calculated results are obtained:the simulated and measured water level the water level is close, in line with the study of the hydrogeological conditions of the area, can basically reflect the actual changes in water levels in the study area and the hydraulic characteristics of the groundwater system.Numerical simulation of groundwater management model can be more systematically Jinan groundwater movement and water relations in all aspects, and more accurately demonstrate the hydrogeological characteristics of the baotu spring and its relationship with adjacent hydrogeological units, comprehensive grasp of the motion law of groundwater flow in the study area, accurately understand the hydrological and geological conditions in the study area, access to best practices on planning and management of groundwater. Meanwhile, combined with hydrogeological conditions in the area of Jinan, according to aquifer available volume, water table depth, the hydraulic conductivity of the aquifer properties and storage performance conditions, such as the conversion of surface water groundwater recharge source lot study and to propose a specific recharge options.Groundwater resource management model, Jinan City, is currently seeking a new attempt of scientific exploitation of groundwater, groundwater movement in its high degree of compliance with rules for scientific management of groundwater resources in Jinan, a target service. This groundwater resource management model is the solution to urban development in the new stage in the process of water resources shortage and sustainable development of socio-economic development issues, to achieve a virtuous circle for groundwater resources system of a new exploration and experiment. This study is to achieve the following results:1. establishment of numerical model of karst groundwater in Jinan. Comprehensive consideration of Quaternary pore aquifer hydraulic connection between the fracture-Karst aquifer and, combined with the scope of the alluvial fan of the study area, the thickness of hydro-geological factors, long Xiao Karst system, baotu spring, Bai Quan Quan domain model as a whole. Application of computer technology to reproduce the process of changes in the groundwater level observation period, and by analyzing the results, further understanding of the hydrogeological conditions of the area, established visualization of numerical model of groundwater in Jinan spring field and its adjacent areas.2. establishment of karst groundwater in Jinan administration model. New numerical model of groundwater based on application of signal and system analysis, methods of response, calculating Zissy, western suburbs, eastern suburbs of urban areas, exploitation of groundwater recharge, city-building impact on the spring, generate optimized management model of karst groundwater resources in Jinan, which led to more rational resource optimal allocation schemes of groundwater.3. Hoizumi recharge of the scientific programme. Papers discussed what measures should be taken to protect springs and hydraulic connections from groundwater, runoff channel, performance and storage capacity of infiltration, demonstrate storage recharge is one of the measures necessary to protect famous springs. And specific analysis of the typical storage recharge area of geographical features, geological conditions, flow characteristics, rock elements, such as a table, and put forward specific programmes to implement storage recharge, provide a scientific basis for government decisions. |
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