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南水北调水源进京后,为缓解朝阳区水资源短缺形势,减缓地面沉降发展,部分生活机井需要置换封填;此外,随着朝阳区城市化进程的发展,农用机井也需要封填。本次根据朝阳区机井深度、开采层位及所处的地层岩性结构,从保护地下水资源角度出发,针对第四系开采井与基岩开采井,开展了不同深度的机井封填结构典型设计以及机井封存的井口设计,为朝阳区机井封填与封存提供技术支撑。
After the water from the South-to-North Water Diversion Project came to Beijing, in order to alleviate the shortage of water resources in Chaoyang District and slow down the development of land subsidence, some life shafts need to be replaced and sealed. In addition, with the development of urbanization in Chaoyang District, agricultural wells need to be sealed. Based on the well depth of the Chaoyang District, the strata of the mining area and the lithological structure of the stratum in which it is located, from the point of view of protecting the groundwater resources, a typical design of the well sealing structure with different depths is carried out for Quaternary production wells and bedrock production wells As well as wellhead sealed wellhead design, Chaoyang District, to provide a technical support for sealing and sealing wells.