A general description is given of the cause and development of the facilities intercepting dry flow sewage provided in the stormwater pumping station in the area of Shanghai, with detailed design ideas thereof in the south area of Beixinjing, which has well solved the problem of land occupation of the station, with lower construction cost and higher social and economic benefits.

Research on stability of riprap influenced by boundary of riverbed during river closure;

Diversion and closure design of Hongjiadu Hydropower Station;

Study on Measures of Reducing the Difficulty of River Closure;

On river closure of Chaijiaxia hydropower project;

Construction and management of Huaihe river closure for Linhuaigang flood control project;

Construction of rock retaining sills at the river bed during river closure for the diversion channels of Three Gorges project;

This modle incorporates all inherent features of circuit breakers such as arcing time,chopping current,dielectric recovery.

In this paper, the chopping current characteristic of vacuum switchgear is studied numerically when it interrupts the current with harmonic components.

Li Tianhe once proposed a model to explain the reason why different materials have different chopping current level by means of the curves or graph to solve the model.