TP – 1224 An Introduction to Relief Well Applications for Professional Engineers

Description

Pressure relief wells as used in this manual refer to vertically installed wells consisting of a well screen surrounded by a filter material designed to prevent inwash of foundation materials into the well. A typical relief well is shown in Figure 2-1. The wells, including screen and riser pipe, have inside diameters generally between 6 and 18 inches (in.), sized to accommodate the maximum design flow without excessive head loss. Well screens generally consist of wire-wrapped steel or plastic pipe, slotted or perforated steel or plastic pipe. Slotted wood stave well screens, which are no longer manufactured, are found in many existing installations.