The recognition of river channel flood infiltration capacity based on numerical simulation

River channel flood infiltration capacity is an important recharge source for groundwater sometimes, so the definition of river channel flood infiltration capacity is especially important in ground water balance calculation. The calculation and check of flood infiltration in the model in this paper, based on the computer numerical simulation technology, take advantage of flood observation data and the groundwater level rising data of long-term observation holes. This paper calculates river channel flood infiltration intensity relatively accurately. This method not only performs an important role in check of numerical model, but also provides a new idea for calculation of the flood infiltration capacity.