CAJ | 학술논문

阐述了干涉井群的另一种计算方法“水力削减法”。依据有观测孔的单井抽水试验数据，得出各干涉井在预期点处的水位削减值、涌水量减少系数。根据涌水量函数关系不变原理，即各干涉井涌水量减少系数随水位降深增大而近似保持为一常数α，采用多井系统理论，推导出干涉井群各种水文地质计算公式。结合工程实际，根据推导的计算公式，得出降水计算结果。通过与工程实例对比，计算结果与实测数据较为吻合。该成果为类似地层超大型深基坑的干涉井群降水设计提供了借鉴。
천술료간섭정군적령일충계산방법“수력삭감법”。의거유관측공적단정추수시험수거，득출각간섭정재예기점처적수위삭감치、용수량감소계수。근거용수량함수관계불변원리，즉각간섭정용수량감소계수수수위강심증대이근사보지위일상수α，채용다정계통이론，추도출간섭정군각충수문지질계산공식。결합공정실제，근거추도적계산공식，득출강수계산결과。통과여공정실례대비，계산결과여실측수거교위문합。해성과위유사지층초대형심기갱적간섭정군강수설계제공료차감。
This paper presents a new method for the calculation of interferential well group,the ‘hydraulic weaken’method.Using pumping test data of single well with observation wholes,we can calculate the hy-draulic weakening value and water flow decreasing coefficient α of each interferential well at anticipated points.Based on the invariant principle of water flow function,as water drawdown increases in interferen-tial wells,the water flow decreasing coefficient approximately keeps constant.Using the theory of multi-ple-well system,hydrogeology formula of interferential well group was deduced.The calculated results of practical engineering examples are in good agreement with the measured data,which provides beneficial reference to large foundation pit dewatering design of interferential well group of similar layers.Therefore, this method has high practical value.