To process the pumping well as a series of virtual units could simulate the changes between the drawdown and the time in each point of the calculating region,research the law of water movement,solve the pumping of group wells at constant rate under the condition of the random boundary,forecast the phreatic surface,instruct the construction progress and appraise the rationality of the water l.

Component mode synthesis method based on virtual elements

In this paper,the method of virtual element and generalized initial stress is presented for developing software on FEM analysis of geotechnical excavation.

A unit image and unit-features are first proposed,and multi description of image is established at various layers from various angles,based on the multi description,the similarity between images is measured by Euclidean distance.