Estimation of radius of influence of pumping landfill gas;

The result shows that with the same AS pressure and airflow rate,the greater the AS well depth,the greater the radius of influence(ROI),but the air distribution concen.

Related parameters in rechecking formula to the dewatering of foundation pit have been discussed,the selection of related parameter should consider the radius of influence of pumping we.

In this article,authors verify theoretically the rationality of an incomplete penetration well,optimize and analysis two key parameters of gushing water amount calculation,influence radius and penetration coefficients,and provide a calculation method.

The generalized large well method is not applicable when the influence radius doesn t exit and the complicated hydrogeological condition is not fit to the condition of Dupuit well-flow formula.

The main parameters of well points selection and emerging volume, including infiltrate coefficient, precipitation depth, influence radius, velocity of flow etc are analyzed in this paper.

Discussion on influencing radius rm of vertically loaded pile;

Then not only the problem of queer dot at the well bore is avoided, but also the radius of influence domain (R) of the depression cone is convenient to deduce.