Research On Design And Construction Of Group Wells And Equivalent Calculation Model Of Non-constantly Pumping Dewatering Well In Erhe Project

In this paper, the dewatering design and construction research were token on the problem of the construction dewatering of Erhe project in the Huaihe River. Firstly, based on the conditions of the engineering geology and hydrology geology and analyzed the time limit for the project, the design scheme of dewatering well of Erhe project was proposed. Secondly, by means of arranging and analyzing the construction monitor data, the practicality method of proposing the dewatering calculation model and parameters of the non-constantly pumping dewatering well was proposed, moreover the equivalent calculation model and parameters of the Erhe project was proposed. Thirdly, based on calculating the design scheme of dewatering well with the equivalent calculation model, the optimized scheme of dewatering well of the Erhe project was proposed and the well number was reduced to 32 where it was 42 in the old scheme. At last, based on the well construction, the dewatering well structure and constructing technique in the soft soil area were exploitedIn addition, the significative analysis and evaluation attitudes to the old design scheme of dewatering well project were impersonally proposed.