New Method for the Structural Calculation of Concrete Rainwater Infiltration Design in City District

摘要

According to the shortage of common calculation methods-graphic and empirical formula method in city rainwater infiltration design calculation, a simple and feasible method called maximum method is proposed, then the detail description and comparison is given for the three kinds of calculation methods by a practical project. The calculation results have some difference between graphic method, maximum method and empirical formula method which has poor security. Maximum method and graphic method have the similar security, but maximum method makes the calculation simple by omitting a series of calculations and drawings. So, maximum method is recommended to calculate the rainwater infiltration design in city district.