Construction shoring method: soil mix wall

The new North Beach storage facility consists of a tank below the street close to homes. The contractor considered this "tight construction space" carefully when choosing methods to shore - or support - soils around the excavation while the tank was being built. Shoring methods are tailored to the soils and groundwater at the site. King County’s contractor proposed a method that had been used only once before in Seattle: soil mix walls. The soils and groundwater at the North Beach site were well suited to use this method. The soil mix wall method reduced vibration and noise, the most common shoring effects. In fact, monitors detected more vibration from freight trains traveling along the shoreline than from the shoring. Watch this video to see how the method works.
Visit the North Beach CSO Control project to learn more about this facility at www.kingcounty....