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北京市平原区地下水长期的超量开采导致地下水位持续下降和储量资源大量亏损,并引发了一系列环境地质问题,南水北调工程引水入京为地下水资源蓄养提供了条件,地下水超采困境将逐步得以改善。由于地下水位下降造成的非饱和地下空间受人类干扰明显,恢复地下水位必须考虑人为因素的影响。本文论述了北京平原区(不含延庆)建[构]筑物地下基础与固体废弃物的填埋场对于地下水位上升的制约作用,提出了相应的地下水限制恢复水位,利用克里金插值法绘制出限制曲面。在此基础上,从历史上曾经存在的、由实际地下水开采结构控制的水位流场中,寻找最接近的限制水位作为地下水回升的控高目标,并计算了地下水库中能够用于水资源储存的可恢复调蓄空间。
Long-term over-exploitation of groundwater in the plains of Beijing led to a continuous decline of groundwater table and a large loss of reserve resources, and triggered a series of environmental and geological problems. The project of diversion of water from the South-to-North Water Diversion Project to Beijing provided the conditions for groundwater resources conservation and the over-exploitation of groundwater will be gradually alleviated . Due to the obvious human disturbance caused by the descent of the groundwater table, human factors must be taken into consideration to restore the groundwater table. This paper discusses the restriction of groundwater level rise caused by the underground foundation and solid waste in the construction of Beijing [plain area] (excluding Yanqing) buildings, and puts forward corresponding groundwater level restriction recovery water level. Using Kriging interpolation method Draw a bound surface. On the basis of this, we find the closest controlled water level as the controlled target of groundwater recovery from the historical water level flow field that is controlled by the actual groundwater exploitation structure, and calculate the underground water reservoir that can be used for water resource storage Recoverable memory space.