CAJ | 학술논문

为保障南水北调中线总干渠水质安全，以河南焦作某内排段为研究对象，基于GMS地下水数值模拟系统对逆止阀处地下水流向流线、进入量及其对干渠水质影响进行了模拟分析.由8种水量情景模拟结果得出：逆止阀处地下水进入量主要受地下水和总干渠水位差的影响，二者呈正相关.以SO2-4、NH3-N、NO3-N为分析因子，假定总干渠水质类别为Ⅱ类水，通过最差情况分析得出：地下水经逆止阀进入总干渠后，干渠水中SO2-4、NH3-N、NO3-N浓度值均超标，水质类别降为Ⅲ类水.采用逆推法分析得出：当干渠水中SO2-4、NH3-N、NO3-N质量浓度分别不超过221.6768、0.0679、9.0832 mg/L时，即便污染的地下水通过逆止阀进入到总干渠，也能保证干渠水符合Ⅱ类水质标准.
위보장남수북조중선총간거수질안전，이하남초작모내배단위연구대상，기우GMS지하수수치모의계통대역지벌처지하수류향류선、진입량급기대간거수질영향진행료모의분석.유8충수량정경모의결과득출：역지벌처지하수진입량주요수지하수화총간거수위차적영향，이자정정상관.이SO2-4、NH3-N、NO3-N위분석인자，가정총간거수질유별위Ⅱ류수，통과최차정황분석득출：지하수경역지벌진입총간거후，간거수중SO2-4、NH3-N、NO3-N농도치균초표，수질유별강위Ⅲ류수.채용역추법분석득출：당간거수중SO2-4、NH3-N、NO3-N질량농도분별불초과221.6768、0.0679、9.0832 mg/L시，즉편오염적지하수통과역지벌진입도총간거，야능보증간거수부합Ⅱ류수질표준.
To ensure the security of water quality in the Middle Route of S-N Water Transfer Canal, taking Jiaozuo as example, the groundwater inflow of check valve and its impact on main canal water quality were analyzed based on GMS. Main control factor of groundwater inflow through the check valve was water level difference between groundwater and main canal, which were positively correlated. With SO2-4 、NH3-N、NO3-N as analysis factors, assuming that the water quality of the main canal was case Ⅱwater, using the method of worst case analysis, it was concluded that canal water changed into case Ⅲwater while the groundwater flowed into the canal. Under the premise that the concentration of three pollutants is below 221. 676 8, 0. 067 9, and 9. 083 2 mg/L, respectively. Through the method of adverse deduce, the main canal water quality still remains to be case Ⅱwater even if the groundwater flows into the canal.