云南安宁炼油厂泥盆系岩溶区地下水污染防控管理模型

发布时间：2018-06-30 05:49

本文选题：岩溶 + 地下水　；参考：《昆明理工大学》2017年硕士论文

【摘要】：多年来随着环境的不断变化,人们对地下水的需求与日俱增,而作为生活及生产主要用水来源的岩溶地区的地下水资源,由于其循环速度快,周期短,更容易受污染,因此对于它的保护则具有重大现实意义。运用数值模拟模型来研究地下水资源在水文地质学领域几十年来的发展中起到了巨大推动作用。然而,随着学科的不断发展发现,继续单纯利用数值模拟模型来探测地下水系统的优化管理方案只能是重复运行企图达到某一目的的各种设计方案,而这种重复运行所得到的解只能是比较好的解,却不可能是最优解。但管理模型可以给出在满足管理所需各种目标和约束条件下的最优决策方案,因此管理模型在地下水系统优化管理中具有着日益广阔的应用前景。云南安宁炼油厂是由中石油以带动我国西南地区经济的发展及优化国家能源结构为战略目标而建设的。本文针对发育于炼油厂的潜在污染源装置建设区之下的溶隙裂隙型岩溶含水介质的防污问题,通过野外钻探、物探、取样分析、水文地质试验等方法相结合,查明该区第四系松散层较薄防渗性弱,岩溶区共发育两层水平向岩溶,西部部分出露于地表为裸露型,东部转为浅覆盖型。污染途径主要为污染物穿过较薄的松散层进入下部岩溶含水层污染岩溶水。由示踪试验发现该岩溶发育的非均质特征明显,并由试验所测得的渗流速度计算其属于层流状态,适用于达西定律。建立了三维地下水流数值模拟模型及污染物溶质运移模拟,并用渗透张量解决三维渗透系数的求取问题。通过分析其污染途径及径流方向布设了污染防控处置井,同时在保证能形成有效拦截漏斗的前提下,以最节约成本为原则,使总抽水量之和为最小建立目标函数,以满足水力条件同时不引发不良环境问题为约束条件,采用嵌入法建立地下水污染防控管理模型,并求得最优解,为该炼油厂的地下水防污管理提供科学依据,同时也为类似岩溶区的地下水污染防控问题提供一些借鉴。
[Abstract]:With the continuous changes in the environment for many years, the demand for groundwater is increasing, and the groundwater resources in karst areas, which are the main sources of water for life and production, are more likely to be polluted because of their rapid circulation speed, short cycle and more easy to be polluted. Therefore, the protection of the groundwater is of great practical significance. Water resources have played a great role in the development of hydrogeology for several decades. However, with the continuous development of the subject, it is found that the continuous use of numerical simulation models to detect the optimal management of the groundwater system can only be the design of repeated operation attempting to achieve a certain goal. The solution can only be a better solution, but it can not be the optimal solution. But the management model can give the optimal decision scheme under the various objectives and constraints required to meet the management. Therefore, the management model has an increasingly broad application prospect in the optimization management of the groundwater system. The Yunnan tranquil refinery is driven by China oil to drive me. The economic development of the southwest of the country and the optimization of the national energy structure are the strategic objectives. This paper, in view of the anti pollution problems of the karst fissure type karst aquifer under the construction area of the potential source of pollution in the refinery, combines the methods of field drilling, geophysical exploration, sampling analysis and hydrogeological tests to find out the area of the area. The four line loose layer is thinner and weakly impervious, the karst area has two horizontally horizontal karst, the western part exposing to the surface and the east to shallow cover. The main pollution way is the pollutants passing through the thinner loose layer into the karst water polluted karst water in the lower karst aquifer. The seepage velocity measured by the test belongs to the laminar flow state and is applicable to Darcy's law. The three-dimensional groundwater flow numerical simulation model and the pollutant solute transport simulation are established, and the three dimensional permeability coefficient is solved by the osmotic tensor. The pollution prevention and control disposal wells are set up by analyzing the pollution path and the runoff direction. On the premise that the effective intercepting funnel can be formed, the objective function is set up with the principle of the most economical cost, the sum of the total pumping amount is set up to the minimum, so as to satisfy the hydraulic conditions without causing adverse environmental problems as a constraint condition, the groundwater pollution prevention and control management model is established by embedding method, and the optimal solution is obtained, which is the groundwater of the refinery. It provides a scientific basis for antifouling management, and provides some reference for the prevention and control of groundwater pollution in similar karst areas.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X523;X742

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